Update external.cmake (#2764)

Disable acars ext app, since not working

.github/workflows/past_version.txt

@@ -1 +1 @@
-v2.0.2
+v2.1.0

.github/workflows/version.txt

@@ -1 +1 @@
-v2.1.0
+v2.2.0

.gitignore

@@ -62,6 +62,7 @@ cmake-build-debug/
 .vscode
 .idea
 *.swp
+.claude
 
 # VSCodium extensions
 .history

firmware/application/CMakeLists.txt

@@ -270,13 +270,10 @@ set(CPPSRC
 	ui/ui_bmpview.cpp
 	apps/ais_app.cpp
 	apps/analog_audio_app.cpp
-	apps/ble_comm_app.cpp
 	apps/ble_rx_app.cpp
 	apps/ble_tx_app.cpp
 	apps/capture_app.cpp
-	apps/ert_app.cpp
 	apps/pocsag_app.cpp
-	apps/soundboard_app.cpp
 	apps/ui_about_simple.cpp
 	apps/ui_adsb_rx.cpp
 	apps/ui_aprs_rx.cpp

firmware/application/apps/ais_app.cpp

@@ -301,7 +301,7 @@ AISRecentEntryDetailView::AISRecentEntryDetailView(NavigationView& nav) {
             ais::format::text(entry_.name),
             0,
             GeoPos::alt_unit::METERS,
-            GeoPos::spd_unit::NONE,
+            GeoPos::spd_unit::KNOTS,
             ais::format::latlon_float(entry_.last_position.latitude.normalized()),
             ais::format::latlon_float(entry_.last_position.longitude.normalized()),
             entry_.last_position.true_heading,
@@ -324,7 +324,31 @@ AISRecentEntryDetailView& AISRecentEntryDetailView::operator=(const AISRecentEnt
 
 void AISRecentEntryDetailView::update_position() {
     if (send_updates)
-        geomap_view->update_position(ais::format::latlon_float(entry_.last_position.latitude.normalized()), ais::format::latlon_float(entry_.last_position.longitude.normalized()), (float)entry_.last_position.true_heading, 0, entry_.last_position.speed_over_ground);
+        geomap_view->update_position(ais::format::latlon_float(entry_.last_position.latitude.normalized()), ais::format::latlon_float(entry_.last_position.longitude.normalized()), (float)entry_.last_position.true_heading, 0, entry_.last_position.speed_over_ground > 1022 ? 0 : entry_.last_position.speed_over_ground);
+}
+
+bool AISRecentEntryDetailView::add_map_marker(const AISRecentEntry& entry) {
+    if (geomap_view && send_updates) {
+        GeoMarker marker{};
+        marker.lon = ais::format::latlon_float(entry.last_position.longitude.normalized());
+        marker.lat = ais::format::latlon_float(entry.last_position.latitude.normalized());
+        marker.angle = entry.last_position.true_heading;
+        marker.tag = entry.call_sign.empty() ? to_string_dec_uint(entry.mmsi) : entry.call_sign;
+        auto markerStored = geomap_view->store_marker(marker);
+        return markerStored == MARKER_STORED;
+    }
+    return false;
+}
+void AISRecentEntryDetailView::update_map_markers(AISRecentEntries& entries) {
+    if (geomap_view && send_updates) {
+        geomap_view->clear_markers();
+        for (const auto& entry : entries) {
+            // if (entry.last_position.latitude.is_valid() && entry.last_position.longitude.is_valid()) {
+            add_map_marker(entry);
+            // }
+        }
+        update_position();  // to update view
+    }
 }
 
 void AISRecentEntryDetailView::focus() {
@@ -415,14 +439,27 @@ AISAppView::AISAppView(NavigationView& nav)
         audio::set_rate(audio::Rate::Hz_24000);
         audio::output::start();
     }
+
+    signal_token_tick_second = rtc_time::signal_tick_second += [this]() {
+        on_tick_second();
+    };
 }
 
 AISAppView::~AISAppView() {
+    rtc_time::signal_tick_second -= signal_token_tick_second;
     audio::output::stop();
     receiver_model.disable();
     baseband::shutdown();
 }
 
+void AISAppView::on_tick_second() {
+    ++timer_seconds;
+    if (timer_seconds % 10 == 0) {
+        if (recent_entry_detail_view.hidden()) return;
+        recent_entry_detail_view.update_map_markers(recent);
+    }
+}
+
 void AISAppView::focus() {
     options_channel.focus();
 }
@@ -461,6 +498,7 @@ void AISAppView::on_show_detail(const AISRecentEntry& entry) {
     recent_entry_detail_view.hidden(false);
     recent_entry_detail_view.set_entry(entry);
     recent_entry_detail_view.focus();
+    recent_entry_detail_view.update_map_markers(recent);
 }
 
 } /* namespace ui */

firmware/application/apps/ais_app.hpp

@@ -125,10 +125,14 @@ class AISRecentEntryDetailView : public View {
     void update_position();
     void focus() override;
     void paint(Painter&) override;
+    bool add_map_marker(const AISRecentEntry& entry);
+    void update_map_markers(AISRecentEntries& entries);
 
     AISRecentEntryDetailView(const AISRecentEntryDetailView& Entry);
     AISRecentEntryDetailView& operator=(const AISRecentEntryDetailView& Entry);
 
+    GeoMapView* get_geomap_view() { return geomap_view; }
+
    private:
     AISRecentEntry entry_{};
 
@@ -215,6 +219,8 @@ class AISAppView : public View {
     Channel channel{
         {21 * 8, 5, 6 * 8, 4},
     };
+    SignalToken signal_token_tick_second{};
+    uint8_t timer_seconds = 0;
 
     MessageHandlerRegistration message_handler_packet{
         Message::ID::AISPacket,
@@ -229,6 +235,7 @@ class AISAppView : public View {
     void on_packet(const ais::Packet& packet);
     void on_show_list();
     void on_show_detail(const AISRecentEntry& entry);
+    void on_tick_second();
 };
 
 } /* namespace ui */

firmware/application/apps/ble_comm_app.cpp

@@ -69,7 +69,7 @@ static std::uint64_t get_freq_by_channel_number(uint8_t channel_number) {
 }
 
 void BLECommView::focus() {
-    options_channel.focus();
+    field_frequency.focus();
 }
 
 BLECommView::BLECommView(NavigationView& nav)
@@ -79,10 +79,7 @@ BLECommView::BLECommView(NavigationView& nav)
                   &field_rf_amp,
                   &field_lna,
                   &field_vga,
-                  &options_channel,
                   &field_frequency,
-                  &label_send_adv,
-                  &button_send_adv,
                   &check_log,
                   &label_packets_sent,
                   &text_packets_sent,
@@ -90,10 +87,6 @@ BLECommView::BLECommView(NavigationView& nav)
 
     field_frequency.set_step(0);
 
-    button_send_adv.on_select = [this](ImageButton&) {
-        this->toggle();
-    };
-
     check_log.set_value(logging);
 
     check_log.on_select = [this](Checkbox&, bool v) {
@@ -104,27 +97,8 @@ BLECommView::BLECommView(NavigationView& nav)
             logger->append(logs_dir.string() + "/BLELOG_" + to_string_timestamp(rtc_time::now()) + ".TXT");
     };
 
-    options_channel.on_change = [this](size_t, int32_t i) {
-        // If we selected Auto don't do anything and Auto will handle changing.
-        if (i == 40) {
-            auto_channel = true;
-            return;
-        } else {
-            auto_channel = false;
-        }
-
-        field_frequency.set_value(get_freq_by_channel_number(i));
-        channel_number_rx = i;
-        channel_number_tx = i;
-    };
-
-    options_channel.set_selected_index(3, true);
-
     logger = std::make_unique<BLECommLogger>();
 
-    // Generate new random Mac Address upon each new startup.
-    generateRandomMacAddress(randomMac);
-
     // Setup Initial Advertise Packet.
     advertisePacket = build_adv_packet();
 }
@@ -145,86 +119,66 @@ bool BLECommView::in_tx_mode() const {
     return (bool)is_running_tx;
 }
 
-void BLECommView::toggle() {
-    if (in_tx_mode()) {
-        sendAdvertisement(false);
-    } else {
-        sendAdvertisement(true);
-    }
-}
-
 BLETxPacket BLECommView::build_adv_packet() {
     BLETxPacket bleTxPacket;
     memset(&bleTxPacket, 0, sizeof(BLETxPacket));
 
-    std::string dataString = "11094861636b524620506f7274617061636b";
-
-    strncpy(bleTxPacket.macAddress, randomMac, 12);
+    std::string dataString = "02010603030F1807084861636B5246";
     strncpy(bleTxPacket.advertisementData, dataString.c_str(), dataString.length());
 
-    // Duty cycle of 40% per 100ms advertisment periods.
-    strncpy(bleTxPacket.packetCount, "80", 3);
-    bleTxPacket.packet_count = 80;
+    strncpy(bleTxPacket.packetCount, "1", 2);
+    bleTxPacket.packet_count = 1;
 
-    bleTxPacket.packetType = PKT_TYPE_DISCOVERY;
+    bleTxPacket.pduType = PKT_TYPE_ADV_IND;
 
     return bleTxPacket;
 }
 
-void BLECommView::sendAdvertisement(bool enable) {
-    if (enable) {
-        startTx(advertisePacket);
-        is_adv = true;
-    } else {
-        is_adv = false;
-        stopTx();
-    }
+void BLECommView::sendAdvertisement(void) {
+    startTx(advertisePacket);
+    ble_state = Ble_State_Advertising;
 }
 
 void BLECommView::startTx(BLETxPacket packetToSend) {
-    int randomChannel = channel_number_tx;
+    switch_rx_tx(false);
 
-    if (auto_channel) {
-        int min = 37;
-        int max = 39;
+    currentPacket = packetToSend;
+    packet_counter = currentPacket.packet_count;
 
-        randomChannel = min + std::rand() % (max - min + 1);
-
-        field_frequency.set_value(get_freq_by_channel_number(randomChannel));
+    switch (advCount) {
+        case 0:
+            channel_number_tx = 37;
+            break;
+        case 1:
+            channel_number_tx = 38;
+            break;
+        case 2:
+            channel_number_tx = 39;
+            break;
     }
 
-    if (!in_tx_mode()) {
-        switch_rx_tx(false);
+    field_frequency.set_value(get_freq_by_channel_number(37));
 
-        currentPacket = packetToSend;
-        packet_counter = currentPacket.packet_count;
+    advCount++;
 
-        button_send_adv.set_bitmap(&bitmap_stop);
-        baseband::set_btletx(randomChannel, currentPacket.macAddress, currentPacket.advertisementData, currentPacket.packetType);
-        transmitter_model.set_tx_gain(47);
-        transmitter_model.enable();
-
-        is_running_tx = true;
-    } else {
-        baseband::set_btletx(randomChannel, currentPacket.macAddress, currentPacket.advertisementData, currentPacket.packetType);
+    if (advCount == 3) {
+        advCount = 0;
     }
 
-    if ((packet_counter % 10) == 0) {
-        text_packets_sent.set(to_string_dec_uint(packet_counter));
-    }
+    baseband::set_btletx(37, deviceMAC, currentPacket.advertisementData, currentPacket.pduType);
+    transmitter_model.set_tx_gain(47);
+    transmitter_model.enable();
 
-    is_sending = true;
-
-    packet_counter--;
+    is_running_tx = true;
 }
 
 void BLECommView::stopTx() {
-    button_send_adv.set_bitmap(&bitmap_play);
     text_packets_sent.set(to_string_dec_uint(packet_counter));
 
     switch_rx_tx(true);
 
     baseband::set_btlerx(channel_number_rx);
+    field_frequency.set_value(get_freq_by_channel_number(channel_number_rx));
     receiver_model.enable();
 
     is_running_tx = false;
@@ -248,14 +202,12 @@ void BLECommView::on_data(BlePacketData* packet) {
     parse_received_packet(packet, (ADV_PDU_TYPE)packet->type);
 }
 
-// called each 1/60th of second, so 6 = 100ms
 void BLECommView::on_timer() {
-    // Send advertise burst only once every 100ms
     if (++timer_counter == timer_period) {
         timer_counter = 0;
 
-        if (!is_adv) {
-            sendAdvertisement(true);
+        if (ble_state == Ble_State_Receiving || ble_state == Ble_State_Idle) {
+            sendAdvertisement();
         }
     }
 }
@@ -263,17 +215,18 @@ void BLECommView::on_timer() {
 void BLECommView::on_tx_progress(const bool done) {
     if (done) {
         if (in_tx_mode()) {
-            is_sending = false;
+            ble_state = Ble_State_Receiving;
 
-            if (packet_counter == 0) {
-                if (is_adv) {
-                    sendAdvertisement(false);
-                } else {
-                    stopTx();
-                }
-            } else {
-                startTx(currentPacket);
-            }
+            timer_counter = 0;
+            timer_period = 12;
+
+            stopTx();
+
+            // else
+            // {
+            //     startTx(advertisePacket);
+            //     advCount++;
+            // }
         }
     }
 }
@@ -309,23 +262,28 @@ void BLECommView::parse_received_packet(const BlePacketData* packet, ADV_PDU_TYP
     }
 
     if (pdu_type == SCAN_REQ || pdu_type == CONNECT_REQ) {
-        ADV_PDU_PAYLOAD_TYPE_1_3* directed_mac_data = (ADV_PDU_PAYLOAD_TYPE_1_3*)packet->data;
-
-        std::reverse(directed_mac_data->A1, directed_mac_data->A1 + 6);
-        console.clear(true);
-        std::string str_console = "";
-        std::string pduTypeStr = "";
-
         if (pdu_type == SCAN_REQ) {
-            pduTypeStr += "SCAN_REQ";
-        } else if (pdu_type == CONNECT_REQ) {
-            pduTypeStr += "CONNECT_REQ";
-        }
+            ADV_PDU_PAYLOAD_TYPE_1_3* directed_mac_data = (ADV_PDU_PAYLOAD_TYPE_1_3*)packet->data;
 
-        str_console += "PACKET TYPE:" + pduTypeStr + "\n";
-        str_console += "MY MAC:" + to_string_formatted_mac_address(randomMac) + "\n";
-        str_console += "SCAN MAC:" + to_string_mac_address(directed_mac_data->A1, 6, false) + "\n";
-        console.write(str_console);
+            std::reverse(directed_mac_data->A1, directed_mac_data->A1 + 6);
+            std::string directedMAC = to_string_mac_address(directed_mac_data->A1, 6, false);
+
+            // Compare directed MAC Hex with the device MAC.
+            if (1) {
+                // std::string str_console = "Received SCAN_REQ from directed MAC: " + directedMAC + "\n";
+                // console.clear(true);
+                // console.writeln(str_console);
+            }
+        } else if (pdu_type == CONNECT_REQ) {
+            ADV_PDU_PAYLOAD_TYPE_5* connectReq = (ADV_PDU_PAYLOAD_TYPE_5*)packet->data;
+
+            std::reverse(connectReq->AdvA, connectReq->AdvA + 6);
+            std::string directedMAC = to_string_mac_address(connectReq->AdvA, 6, false);
+
+            std::string str_console = "Received CONNECT_REQ from directed MAC: " + directedMAC + "\n";
+            console.clear(true);
+            console.writeln(str_console);
+        }
     }
 }
 

firmware/application/apps/ble_comm_app.hpp

@@ -76,7 +76,16 @@ class BLECommView : public View {
     void on_data(BlePacketData* packetData);
     void on_tx_progress(const bool done);
     void parse_received_packet(const BlePacketData* packet, ADV_PDU_TYPE pdu_type);
-    void sendAdvertisement(bool enable);
+    void sendAdvertisement(void);
+
+    typedef enum {
+        Ble_State_Idle = 0,
+        Ble_State_Advertising = 1,
+        Ble_State_Receiving = 2,
+        Ble_State_Sending = 3
+    } BleState;
+
+    BleState ble_state{Ble_State_Idle};
 
     NavigationView& nav_;
 
@@ -101,8 +110,9 @@ class BLECommView : public View {
     uint8_t channel_number_tx = 37;
     uint8_t channel_number_rx = 37;
     bool auto_channel = false;
+    uint8_t advCount = 0;
 
-    char randomMac[13] = "010203040506";
+    char deviceMAC[13] = "C23456789ABC";
 
     bool is_running_tx = false;
     bool is_sending = false;
@@ -111,7 +121,7 @@ class BLECommView : public View {
     int16_t timer_period{6};  // Delay each packet by 16ms.
     int16_t timer_counter = 0;
     int16_t timer_rx_counter = 0;
-    int16_t timer_rx_period{12};  // Poll Rx for at least 200ms. (TBD)
+    int16_t timer_rx_period{12};  // Poll Rx for at least 150ms. (TBD)
 
     uint32_t packet_counter{0};
     BLETxPacket advertisePacket{};
@@ -147,15 +157,6 @@ class BLECommView : public View {
     Channel channel{
         {24 * 8, 5, 6 * 8, 4}};
 
-    Labels label_send_adv{
-        {{0 * 8, 2 * 8}, "Send Advertisement:", Theme::getInstance()->fg_light->foreground}};
-
-    ImageButton button_send_adv{
-        {21 * 8, 1 * 16, 10 * 8, 2 * 16},
-        &bitmap_play,
-        Theme::getInstance()->fg_green->foreground,
-        Theme::getInstance()->fg_green->background};
-
     Checkbox check_log{
         {24 * 8, 2 * 8},
         3,

firmware/application/apps/ble_rx_app.cpp

@@ -68,22 +68,6 @@ uint64_t copy_mac_address_to_uint64(const uint8_t* macAddress) {
     return result;
 }
 
-void reverse_byte_array(uint8_t* arr, int length) {
-    int start = 0;
-    int end = length - 1;
-
-    while (start < end) {
-        // Swap elements at start and end
-        uint8_t temp = arr[start];
-        arr[start] = arr[end];
-        arr[end] = temp;
-
-        // Move the indices towards the center
-        start++;
-        end--;
-    }
-}
-
 MAC_VENDOR_STATUS lookup_mac_vendor_status(const uint8_t* mac_address, std::string& vendor_name) {
     static bool db_checked = false;
     static bool db_exists = false;
@@ -128,6 +112,22 @@ std::string lookup_mac_vendor(const uint8_t* mac_address) {
     return vendor_name;
 }
 
+void reverse_byte_array(uint8_t* arr, int length) {
+    int start = 0;
+    int end = length - 1;
+
+    while (start < end) {
+        // Swap elements at start and end
+        uint8_t temp = arr[start];
+        arr[start] = arr[end];
+        arr[end] = temp;
+
+        // Move the indices towards the center
+        start++;
+        end--;
+    }
+}
+
 namespace ui {
 
 std::string pdu_type_to_string(ADV_PDU_TYPE type) {
@@ -195,8 +195,15 @@ void RecentEntriesTable<BleRecentEntries>::draw(
         line = to_string_mac_address(entry.packetData.macAddress, 6, false);
     }
 
+    std::string hitsStr;
+
+    if (!entry.informationString.empty()) {
+        hitsStr = entry.informationString;
+    } else {
+        hitsStr = to_string_dec_int(entry.numHits);
+    }
+
     // Pushing single digit values down right justified.
-    std::string hitsStr = to_string_dec_int(entry.numHits);
     int hitsDigits = hitsStr.length();
     uint8_t hits_spacing = 8 - hitsDigits;
 
@@ -240,7 +247,7 @@ BleRecentEntryDetailView::BleRecentEntryDetailView(NavigationView& nav, const Bl
     };
 
     button_send.on_select = [this, &nav](const ui::Button&) {
-        auto packetToSend = build_packet();
+        auto packetToSend = build_packet(entry_);
         nav.set_on_pop([packetToSend, &nav]() {
             nav.replace<BLETxView>(packetToSend);
         });
@@ -248,7 +255,7 @@ BleRecentEntryDetailView::BleRecentEntryDetailView(NavigationView& nav, const Bl
     };
 
     button_save.on_select = [this, &nav](const ui::Button&) {
-        auto packetToSave = build_packet();
+        auto packetToSave = build_packet(entry_);
 
         packetFileBuffer = "";
         text_prompt(
@@ -429,7 +436,7 @@ void BleRecentEntryDetailView::set_entry(const BleRecentEntry& entry) {
     set_dirty();
 }
 
-BLETxPacket BleRecentEntryDetailView::build_packet() {
+BLETxPacket BleRecentEntryDetailView::build_packet(BleRecentEntry entry_) {
     BLETxPacket bleTxPacket;
     memset(&bleTxPacket, 0, sizeof(BLETxPacket));
 
@@ -437,8 +444,8 @@ BLETxPacket BleRecentEntryDetailView::build_packet() {
 
     strncpy(bleTxPacket.macAddress, macAddressStr.c_str(), 12);
     strncpy(bleTxPacket.advertisementData, entry_.dataString.c_str(), entry_.packetData.dataLen * 2);
-    strncpy(bleTxPacket.packetCount, "50", 3);
-    bleTxPacket.packet_count = 50;
+    strncpy(bleTxPacket.packetCount, "10", 3);
+    bleTxPacket.packet_count = 10;
 
     return bleTxPacket;
 }
@@ -488,16 +495,18 @@ BLERxView::BLERxView(NavigationView& nav)
                   &field_vga,
                   &options_channel,
                   &field_frequency,
-                  &check_log,
-                  &button_find,
-                  &check_name,
                   &label_sort,
                   &options_sort,
-                  &label_found,
-                  &text_found_count,
-                  &check_serial_log,
                   &button_filter,
                   &options_filter,
+                  &check_name,
+                  &check_log,
+                  &check_serial_log,
+                  &check_unique,
+                  &check_duplicate_packets,
+                  &button_find,
+                  &label_found,
+                  &text_found_count,
                   &button_save_list,
                   &button_clear_list,
                   &button_switch,
@@ -509,6 +518,29 @@ BLERxView::BLERxView(NavigationView& nav)
         nav_.push<BleRecentEntryDetailView>(entry);
     };
 
+    ensure_directory(find_packet_path);
+    ensure_directory(log_packets_path);
+    ensure_directory(packet_save_path);
+
+    // ------------------------------------------------------------------------------
+    // Handle Check Boxes
+    // ------------------------------------------------------------------------------
+    logger = std::make_unique<BLELogger>();
+
+    check_name.on_select = [this](Checkbox&, bool v) {
+        name_enable = v;
+        // update the include_name instance variable value of each entry in recent entries
+        setAllMembersToValue(recent, &BleRecentEntry::include_name, v);
+        recent_entries_view.set_dirty();
+    };
+
+    check_log.on_select = [this](Checkbox&, bool v) {
+        logging = v;
+
+        if (logger && logging)
+            logger->append(bletx_dir.string() + "/Packets/BLETx_" + to_string_timestamp(rtc_time::now()) + ".TXT");
+    };
+
     check_serial_log.on_select = [this](Checkbox&, bool v) {
         serial_logging = v;
         if (v) {
@@ -517,12 +549,28 @@ BLERxView::BLERxView(NavigationView& nav)
             portapack::async_tx_enabled = false;
         }
     };
+
+    check_unique.on_select = [this](Checkbox&, bool v) {
+        uniqueParsing = v;
+        recent.clear();
+        recent_entries_view.set_dirty();
+    };
+
+    check_duplicate_packets.on_select = [this](Checkbox&, bool v) {
+        duplicatePackets = v;
+        recent.clear();
+        recent_entries_view.set_dirty();
+    };
+
+    check_name.set_value(name_enable);
+    check_log.set_value(logging);
     check_serial_log.set_value(serial_logging);
+    check_unique.set_value(uniqueParsing);
+    check_duplicate_packets.set_value(duplicatePackets);
 
-    ensure_directory(find_packet_path);
-    ensure_directory(log_packets_path);
-    ensure_directory(packet_save_path);
-
+    // ------------------------------------------------------------------------------
+    // Handle Buttons
+    // ------------------------------------------------------------------------------
     filterBuffer = filter;
 
     button_filter.on_select = [this](Button&) {
@@ -536,17 +584,6 @@ BLERxView::BLERxView(NavigationView& nav)
             });
     };
 
-    logger = std::make_unique<BLELogger>();
-
-    check_log.on_select = [this](Checkbox&, bool v) {
-        str_log = "";
-        logging = v;
-
-        if (logger && logging)
-            logger->append(blerx_dir.string() + "/Logs/BLELOG_" + to_string_timestamp(rtc_time::now()) + ".TXT");
-    };
-    check_log.set_value(logging);
-
     button_save_list.on_select = [this, &nav](const ui::Button&) {
         listFileBuffer = "";
         text_prompt(
@@ -561,23 +598,25 @@ BLERxView::BLERxView(NavigationView& nav)
 
     button_clear_list.on_select = [this](Button&) {
         recent.clear();
+        recent_entries_view.set_dirty();
     };
 
     button_switch.on_select = [&nav](Button&) {
         nav.replace<BLETxView>();
     };
 
-    field_frequency.set_step(0);
-
-    check_name.set_value(name_enable);
-
-    check_name.on_select = [this](Checkbox&, bool v) {
-        name_enable = v;
-        // update the include_name instance variable value of each entry in recent entries
-        setAllMembersToValue(recent, &BleRecentEntry::include_name, v);
-        recent_entries_view.set_dirty();
+    button_find.on_select = [this](Button&) {
+        auto open_view = nav_.push<FileLoadView>(".TXT");
+        open_view->on_changed = [this](std::filesystem::path new_file_path) {
+            on_file_changed(new_file_path);
+        };
     };
 
+    // ------------------------------------------------------------------------------
+    // Handle Options
+    // ------------------------------------------------------------------------------
+    field_frequency.set_step(0);
+
     options_channel.on_change = [this](size_t index, int32_t v) {
         channel_index = (uint8_t)index;
 
@@ -602,22 +641,15 @@ BLERxView::BLERxView(NavigationView& nav)
 
     options_filter.on_change = [this](size_t index, int32_t v) {
         filter_index = (uint8_t)index;
+        recent.clear();
         handle_filter_options(v);
+        recent_entries_view.set_dirty();
     };
 
     options_channel.set_selected_index(channel_index, true);
     options_sort.set_selected_index(sort_index, true);
     options_filter.set_selected_index(filter_index, true);
 
-    button_find.on_select = [this](Button&) {
-        auto open_view = nav_.push<FileLoadView>(".TXT");
-        open_view->on_changed = [this](std::filesystem::path new_file_path) {
-            on_file_changed(new_file_path);
-
-            // nav_.set_on_pop([this]() { button_play.focus(); });
-        };
-    };
-
     // Auto-configure modem for LCR RX (will be removed later)
     baseband::set_btlerx(channel_number);
 
@@ -775,10 +807,66 @@ bool BLERxView::saveFile(const std::filesystem::path& path) {
 }
 
 void BLERxView::on_data(BlePacketData* packet) {
-    if (!logging) {
-        str_log = "";
+    uint64_t uniqueKeyEncoded = copy_mac_address_to_uint64(packet->macAddress);
+
+    // Start of Packet stuffing.
+    // Masking off the top 2 bytes to avoid invalid keys.
+
+    uint64_t key = (uniqueKeyEncoded & 0xFFFFFFFFFFFF);
+
+    if (duplicatePackets) {
+        key |= ((uint64_t)packet->type) << 48;
     }
 
+    bool packetExists = false;
+
+    // If found store into tempEntry to modify.
+    auto it = find(recent, key);
+    if (it != recent.end()) {
+        recent.push_front(*it);
+        recent.erase(it);
+        updateEntry(packet, recent.front(), (ADV_PDU_TYPE)packet->type);
+        packetExists = true;
+    } else {
+        recent.emplace_front(key);
+        truncate_entries(recent);
+
+        packetExists = updateEntry(packet, recent.front(), (ADV_PDU_TYPE)packet->type);
+
+        // If parsing failed, remove entry.
+        if (!packetExists) {
+            recent.erase(recent.begin());
+        }
+    }
+
+    if (packetExists) {
+        handle_filter_options(options_filter.selected_index());
+        handle_entries_sort(options_sort.selected_index());
+
+        if (!searchList.empty()) {
+            auto it = searchList.begin();
+
+            while (it != searchList.end()) {
+                std::string searchStr = (std::string)*it;
+
+                if (recent.front().dataString.find(searchStr) != std::string::npos) {
+                    searchList.erase(it);
+                    found_count++;
+                    break;
+                }
+
+                it++;
+            }
+
+            text_found_count.set(to_string_dec_uint(found_count) + "/" + to_string_dec_uint(total_count));
+        }
+    }
+
+    log_ble_packet(packet);
+}
+
+void BLERxView::log_ble_packet(BlePacketData* packet) {
+    str_console = "";
     str_console += pdu_type_to_string((ADV_PDU_TYPE)packet->type);
     str_console += " Len:";
     str_console += to_string_dec_uint(packet->size);
@@ -792,58 +880,19 @@ void BLERxView::on_data(BlePacketData* packet) {
         str_console += to_string_hex(packet->data[i], 2);
     }
 
-    uint64_t macAddressEncoded = copy_mac_address_to_uint64(packet->macAddress);
-
-    // Start of Packet stuffing.
-    // Masking off the top 2 bytes to avoid invalid keys.
-    auto& entry = ::on_packet(recent, macAddressEncoded & 0xFFFFFFFFFFFF);
-    updateEntry(packet, entry, (ADV_PDU_TYPE)packet->type);
-
-    // Add entries if they meet the criteria.
-    // auto value = filter;
-    // resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
-    //     return (entry.dataString.find(value) == std::string::npos) && (entry.nameString.find(value) == std::string::npos);
-    // });
-    handle_filter_options(options_filter.selected_index());
-
-    handle_entries_sort(options_sort.selected_index());
-
     // Log at End of Packet.
     if (logger && logging) {
-        logger->log_raw_data(str_console + "\r\n");
+        logger->log_raw_data(str_console);
     }
 
     if (serial_logging) {
         UsbSerialAsyncmsg::asyncmsg(str_console);  // new line handled there, no need here.
     }
-    str_console = "";
-
-    if (!searchList.empty()) {
-        auto it = searchList.begin();
-
-        while (it != searchList.end()) {
-            std::string searchStr = (std::string)*it;
-
-            if (entry.dataString.find(searchStr) != std::string::npos) {
-                searchList.erase(it);
-                found_count++;
-                break;
-            }
-
-            it++;
-        }
-
-        text_found_count.set(to_string_dec_uint(found_count) + "/" + to_string_dec_uint(total_count));
-    }
 }
 
 void BLERxView::on_filter_change(std::string value) {
     // New filter? Reset list from recent entries.
     if (filter != value) {
-        // resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
-        //     // return (entry.dataString.find(value) == std::string::npos) && (entry.nameString.find(value) == std::string::npos);
-        //     return (entry.dataString.find(value) == std::string::npos) && (entry.nameString.find(value) == std::string::npos) && (to_string_mac_address(entry.packetData.macAddress, 6, false).find(value) == std::string::npos);
-        // });
         filter = value;
         handle_filter_options(options_filter.selected_index());
     }
@@ -897,13 +946,10 @@ void BLERxView::on_timer() {
         timer_count = 0;
 
         if (auto_channel) {
-            int min = 37;
-            int max = 39;
+            field_frequency.set_value(get_freq_by_channel_number(channel_number));
+            baseband::set_btlerx(channel_number);
 
-            int randomChannel = min + std::rand() % (max - min + 1);
-
-            field_frequency.set_value(get_freq_by_channel_number(randomChannel));
-            baseband::set_btlerx(randomChannel);
+            channel_number = (channel_number < 39) ? channel_number + 1 : 37;
         }
     }
     if (ble_rx_error != BLE_RX_NO_ERROR) {
@@ -924,7 +970,7 @@ void BLERxView::handle_entries_sort(uint8_t index) {
     switch (index) {
         case 0:
             sortEntriesBy(
-                recent, [](const BleRecentEntry& entry) { return entry.macAddress; }, true);
+                recent, [](const BleRecentEntry& entry) { return entry.uniqueKey & 0xFFFFFFFFFFFF; }, true);
             break;
         case 1:
             sortEntriesBy(
@@ -942,6 +988,10 @@ void BLERxView::handle_entries_sort(uint8_t index) {
             sortEntriesBy(
                 recent, [](const BleRecentEntry& entry) { return entry.nameString; }, true);
             break;
+        case 5:
+            sortEntriesBy(
+                recent, [](const BleRecentEntry& entry) { return entry.informationString; }, true);
+            break;
         default:
             break;
     }
@@ -952,16 +1002,43 @@ void BLERxView::handle_entries_sort(uint8_t index) {
 void BLERxView::handle_filter_options(uint8_t index) {
     auto value = filter;
     switch (index) {
-        case 0:  // filter by Data
+        // Data
+        case 0:
             resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
                 return (entry.dataString.find(value) == std::string::npos) && (entry.nameString.find(value) == std::string::npos);
             });
             break;
-        case 1:  // filter by MAC address (All caps: e.g. AA:BB:CC:DD:EE:FF)
+        // MAC address (All caps: e.g. AA:BB:CC:DD:EE:FF)
+        case 1:
             resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
                 return (to_string_mac_address(entry.packetData.macAddress, 6, false).find(value) == std::string::npos);
             });
             break;
+        // Name
+        case 2:
+            resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
+                return (entry.nameString.find(value) == std::string::npos);
+            });
+            break;
+        // Info
+        case 3:
+            resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
+                return (entry.informationString.find(value) == std::string::npos);
+            });
+            break;
+        // Vendor
+        case 4:
+            resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
+                std::string vendor_name = lookup_mac_vendor(entry.packetData.macAddress);
+                return (vendor_name.find(value) == std::string::npos);
+            });
+            break;
+        // Channel
+        case 5:
+            resetFilteredEntries(recent, [&value](const BleRecentEntry& entry) {
+                return (to_string_dec_int(entry.channelNumber).find(value) == std::string::npos);
+            });
+            break;
         default:
             break;
     }
@@ -979,77 +1056,215 @@ BLERxView::~BLERxView() {
     baseband::shutdown();
 }
 
-void BLERxView::updateEntry(const BlePacketData* packet, BleRecentEntry& entry, ADV_PDU_TYPE pdu_type) {
+bool BLERxView::updateEntry(const BlePacketData* packet, BleRecentEntry& entry, ADV_PDU_TYPE pdu_type) {
     std::string data_string;
 
-    int i;
-
-    for (i = 0; i < packet->dataLen; i++) {
-        data_string += to_string_hex(packet->data[i], 2);
-    }
-
-    entry.dbValue = packet->max_dB;
-    entry.timestamp = to_string_timestamp(rtc_time::now());
-    entry.dataString = data_string;
-
-    entry.packetData.type = packet->type;
-    entry.packetData.size = packet->size;
-    entry.packetData.dataLen = packet->dataLen;
-
-    // Mac Address of sender.
-    entry.packetData.macAddress[0] = packet->macAddress[0];
-    entry.packetData.macAddress[1] = packet->macAddress[1];
-    entry.packetData.macAddress[2] = packet->macAddress[2];
-    entry.packetData.macAddress[3] = packet->macAddress[3];
-    entry.packetData.macAddress[4] = packet->macAddress[4];
-    entry.packetData.macAddress[5] = packet->macAddress[5];
-
-    entry.numHits++;
-    entry.pduType = pdu_type;
-    entry.channelNumber = channel_number;
-
-    if (entry.vendor_status == MAC_VENDOR_UNKNOWN) {
-        std::string vendor_name;
-        entry.vendor_status = lookup_mac_vendor_status(entry.packetData.macAddress, vendor_name);
-    }
-
-    // Parse Data Section into buffer to be interpretted later.
-    for (int i = 0; i < packet->dataLen; i++) {
-        entry.packetData.data[i] = packet->data[i];
-    }
-
-    entry.include_name = check_name.value();
+    bool success = false;
 
     // Only parse name for advertisment packets and empty name entries
-    if ((pdu_type == ADV_IND || pdu_type == ADV_NONCONN_IND || pdu_type == SCAN_RSP || pdu_type == ADV_SCAN_IND) && entry.nameString.empty()) {
-        ADV_PDU_PAYLOAD_TYPE_0_2_4_6* advertiseData = (ADV_PDU_PAYLOAD_TYPE_0_2_4_6*)entry.packetData.data;
+    if (pdu_type == ADV_IND || pdu_type == ADV_NONCONN_IND || pdu_type == SCAN_RSP || pdu_type == ADV_SCAN_IND) {
+        if (uniqueParsing) {
+            success = parse_tracking_beacon_data(packet->data, packet->dataLen, entry.nameString, entry.informationString);
+        }
 
-        uint8_t currentByte = 0;
-        uint8_t length = 0;
-        uint8_t type = 0;
-
-        std::string decoded_data;
-        for (currentByte = 0; (currentByte < entry.packetData.dataLen);) {
-            length = advertiseData->Data[currentByte++];
-            type = advertiseData->Data[currentByte++];
-
-            // Subtract 1 because type is part of the length.
-            for (int i = 0; i < length - 1; i++) {
-                // parse the name of bluetooth device: 0x08->Shortened Local Name; 0x09->Complete Local Name
-                if (type == 0x08 || type == 0x09) {
-                    decoded_data += (char)advertiseData->Data[currentByte];
-                }
-                currentByte++;
-            }
-            if (!decoded_data.empty()) {
-                entry.nameString = std::move(decoded_data);
-                break;
-            }
+        if (!success && !uniqueParsing) {
+            success = parse_beacon_data(packet->data, packet->dataLen, entry.nameString, entry.informationString);
         }
     } else if (pdu_type == ADV_DIRECT_IND || pdu_type == SCAN_REQ) {
-        ADV_PDU_PAYLOAD_TYPE_1_3* directed_mac_data = (ADV_PDU_PAYLOAD_TYPE_1_3*)entry.packetData.data;
-        reverse_byte_array(directed_mac_data->A1, 6);
+        if (!uniqueParsing) {
+            ADV_PDU_PAYLOAD_TYPE_1_3* directed_mac_data = (ADV_PDU_PAYLOAD_TYPE_1_3*)packet->data;
+            reverse_byte_array(directed_mac_data->A1, 6);
+            success = true;
+        }
     }
+
+    if (success) {
+        int i;
+
+        for (i = 0; i < packet->dataLen; i++) {
+            data_string += to_string_hex(packet->data[i], 2);
+        }
+
+        entry.dbValue = packet->max_dB - (receiver_model.lna() + receiver_model.vga() + (receiver_model.rf_amp() ? 14 : 0));
+        entry.timestamp = to_string_timestamp(rtc_time::now());
+        entry.dataString = data_string;
+
+        entry.packetData.type = packet->type;
+        entry.packetData.size = packet->size;
+        entry.packetData.dataLen = packet->dataLen;
+
+        // Mac Address of sender.
+        entry.packetData.macAddress[0] = packet->macAddress[0];
+        entry.packetData.macAddress[1] = packet->macAddress[1];
+        entry.packetData.macAddress[2] = packet->macAddress[2];
+        entry.packetData.macAddress[3] = packet->macAddress[3];
+        entry.packetData.macAddress[4] = packet->macAddress[4];
+        entry.packetData.macAddress[5] = packet->macAddress[5];
+
+        entry.pduType = pdu_type;
+        entry.channelNumber = channel_number;
+        entry.numHits++;
+
+        if (entry.vendor_status == MAC_VENDOR_UNKNOWN) {
+            std::string vendor_name;
+            entry.vendor_status = lookup_mac_vendor_status(entry.packetData.macAddress, vendor_name);
+        }
+
+        // Parse Data Section into buffer to be interpretted later.
+        for (int i = 0; i < packet->dataLen; i++) {
+            entry.packetData.data[i] = packet->data[i];
+        }
+
+        entry.include_name = check_name.value();
+    }
+
+    return success;
+}
+
+bool BLERxView::parse_tracking_beacon_data(const uint8_t* data, uint8_t length, std::string& nameString, std::string& informationString) {
+    uint8_t currentByte, currentLength, currentType = 0;
+
+    for (currentByte = 0; currentByte < length;) {
+        currentLength = data[currentByte++];
+        currentType = data[currentByte++];
+
+        // Manufacturer Specific Data (0xFF)
+        if (currentType == 0xFF && currentLength >= 4) {
+            uint16_t companyID = data[currentByte] | (data[currentByte + 1] << 8);
+
+            // Apple AirTag / Find My
+            if (companyID == 0x004C && currentLength >= 6) {
+                uint8_t appleType = data[currentByte + 2];
+                uint8_t appleLen = data[currentByte + 3];
+                if (appleType == 0x12 && appleLen == 0x19 && currentLength >= 4 + appleLen) {
+                    nameString.assign("Apple AirTag");
+                    informationString.assign("Find My");
+                    return true;
+                } else if (appleType == 0x02 && appleLen == 0x15) {
+                    uint16_t major = (data[currentByte + 20] << 8) | data[currentByte + 21];
+                    uint16_t minor = (data[currentByte + 22] << 8) | data[currentByte + 23];
+
+                    nameString.assign("iBeacon");
+                    informationString.assign(to_string_hex(major) + to_string_hex(minor));
+                    return true;
+                }
+            }
+        }
+        // Services
+        else if ((currentType == 0x02 || currentType == 0x03) && currentLength >= 3) {
+            for (int u = 0; u < currentLength - 1; u += 2) {
+                uint16_t uuid16 = data[currentByte + u] | (data[currentByte + u + 1] << 8);
+                if (uuid16 == 0x1802) {  // Immediate Alert Service = Find Me Profile
+                    nameString.assign("FindMe");
+                    informationString.assign("IAS");
+                    return true;
+                }
+            }
+        }
+        // Service Data
+        else if (currentType == 0x16 && currentLength >= 3) {
+            uint16_t uuid16 = data[currentByte] | (data[currentByte + 1] << 8);
+
+            switch (uuid16) {
+                case 0xFD59: {  // Samsung SmartTag - Unregistered
+                    nameString.assign("Samsung SmartTag");
+                    informationString.assign("Unreg");
+                    return true;
+                }
+                case 0xFD5A: {  // Samsung SmartTag - Registered
+                    nameString.assign("Samsung SmartTag");
+                    informationString.assign("Reg");
+                    return true;
+                }
+                case 0xFD84: {
+                    if (currentByte + 2 < length) {
+                        uint8_t model = data[currentByte + 2];
+                        switch (model) {
+                            case 0x01:
+                                informationString.assign("Mate");
+                                break;
+                            case 0x02:
+                                informationString.assign("Pro");
+                                break;
+                            case 0x03:
+                                informationString.assign("Slim");
+                                break;
+                            case 0x04:
+                                informationString.assign("Sticker");
+                                break;
+                            default:
+                                informationString.assign("Unknown");
+                                break;
+                        }
+                    }
+                    nameString.assign("Tile");
+                    return true;
+                }
+                case 0xFEAA: {
+                    if (currentByte + 2 < length) {
+                        uint8_t frameType = data[currentByte + 2];
+                        switch (frameType) {
+                            case 0x00:
+                                informationString.assign("UID");
+                                break;
+                            case 0x10:
+                                informationString.assign("URL");
+                                break;
+                            case 0x20:
+                                informationString.assign("TLM");
+                                break;
+                            case 0x30:
+                                informationString.assign("EID");
+                                break;
+                            default:
+                                informationString.assign("Unknown");
+                                break;
+                        }
+                    }
+                    nameString.assign("Eddystone");
+                    return true;
+                }
+            }
+        }
+
+        currentByte += (currentLength - 1);
+    }
+
+    return false;
+}
+
+bool BLERxView::parse_beacon_data(const uint8_t* data, uint8_t length, std::string& nameString, std::string& informationString) {
+    uint8_t currentByte, currentLength, currentType = 0;
+    std::string tempName = "";
+
+    for (currentByte = 0; currentByte < length;) {
+        currentLength = data[currentByte++];
+        currentType = data[currentByte++];
+
+        // Subtract 1 because type is part of the length.
+        for (int i = 0; ((i < currentLength - 1) && (currentByte < length)); i++) {
+            // parse the name of bluetooth device: 0x08->Shortened Local Name; 0x09->Complete Local Name
+            if (currentType == 0x08 || currentType == 0x09) {
+                tempName += (char)data[currentByte];
+            }
+            currentByte++;
+        }
+
+        if (!tempName.empty()) {
+            nameString = tempName;
+            break;
+        }
+    }
+
+    informationString = "";
+
+    if (!informationString.empty()) {
+        // Option to change title of Hits Column.
+        // Setting to default for now.
+        columns.set(1, "Hits", 7);
+    }
+
+    return true;
 }
 
 } /* namespace ui */

firmware/application/apps/ble_rx_app.hpp

@@ -71,7 +71,8 @@ typedef enum {
     RESERVED5 = 12,
     RESERVED6 = 13,
     RESERVED7 = 14,
-    RESERVED8 = 15
+    RESERVED8 = 15,
+    UNKNOWN = 16
 } ADV_PDU_TYPE;
 
 typedef enum {
@@ -84,14 +85,15 @@ typedef enum {
 struct BleRecentEntry {
     using Key = uint64_t;
 
-    static constexpr Key invalid_key = 0xffffffff;
+    static constexpr Key invalid_key = 0xFFFFFFFFFFFFF;
 
-    uint64_t macAddress;
+    uint64_t uniqueKey;
     int dbValue;
     BlePacketData packetData;
     std::string timestamp;
     std::string dataString;
     std::string nameString;
+    std::string informationString;
     bool include_name;
     uint16_t numHits;
     ADV_PDU_TYPE pduType;
@@ -104,13 +106,14 @@ struct BleRecentEntry {
     }
 
     BleRecentEntry(
-        const uint64_t macAddress)
-        : macAddress{macAddress},
+        const uint64_t uniqueKey)
+        : uniqueKey{uniqueKey},
           dbValue{},
           packetData{},
           timestamp{},
           dataString{},
           nameString{},
+          informationString{},
           include_name{},
           numHits{},
           pduType{},
@@ -120,7 +123,7 @@ struct BleRecentEntry {
     }
 
     Key key() const {
-        return macAddress;
+        return uniqueKey;
     }
 };
 
@@ -137,11 +140,11 @@ class BleRecentEntryDetailView : public View {
     void update_data();
     void focus() override;
     void paint(Painter&) override;
+    static BLETxPacket build_packet(BleRecentEntry entry_);
 
    private:
     NavigationView& nav_;
     BleRecentEntry entry_{};
-    BLETxPacket build_packet();
     void on_save_file(const std::string value, BLETxPacket packetToSave);
     bool saveFile(const std::filesystem::path& path, BLETxPacket packetToSave);
     std::string packetFileBuffer{};
@@ -216,15 +219,19 @@ class BLERxView : public View {
     bool saveFile(const std::filesystem::path& path);
     std::unique_ptr<UsbSerialThread> usb_serial_thread{};
     void on_data(BlePacketData* packetData);
+    void log_ble_packet(BlePacketData* packet);
     void on_filter_change(std::string value);
     void on_file_changed(const std::filesystem::path& new_file_path);
     void file_error();
     void on_timer();
     void handle_entries_sort(uint8_t index);
     void handle_filter_options(uint8_t index);
-    void updateEntry(const BlePacketData* packet, BleRecentEntry& entry, ADV_PDU_TYPE pdu_type);
+    bool updateEntry(const BlePacketData* packet, BleRecentEntry& entry, ADV_PDU_TYPE pdu_type);
+    bool parse_beacon_data(const uint8_t* data, uint8_t length, std::string& nameString, std::string& informationString);
+    bool parse_tracking_beacon_data(const uint8_t* data, uint8_t length, std::string& nameString, std::string& informationString);
 
     NavigationView& nav_;
+
     RxRadioState radio_state_{
         2402000000 /* frequency */,
         4000000 /* bandwidth */,
@@ -234,6 +241,8 @@ class BLERxView : public View {
     uint8_t channel_index{0};
     uint8_t sort_index{0};
     uint8_t filter_index{0};
+    bool uniqueParsing = false;
+    bool duplicatePackets = false;
     std::string filter{};
     bool logging{false};
     bool serial_logging{false};
@@ -252,6 +261,8 @@ class BLERxView : public View {
             // disabled to always start without USB serial activated until we can make it non blocking if not connected
             // {"serial_log"sv, &serial_logging},
             {"name"sv, &name_enable},
+            {"unique_parsing"sv, &uniqueParsing},
+            {"duplicate_packets"sv, &duplicatePackets},
         }};
 
     std::string str_console = "";
@@ -261,7 +272,7 @@ class BLERxView : public View {
     bool auto_channel = false;
 
     int16_t timer_count{0};
-    int16_t timer_period{6};  // 100ms
+    int16_t timer_period{1};  // 25ms
 
     std::string filterBuffer{};
     std::string listFileBuffer{};
@@ -277,7 +288,7 @@ class BLERxView : public View {
     std::filesystem::path log_packets_path{blerx_dir / u"Logs/????.TXT"};
     std::filesystem::path packet_save_path{blerx_dir / u"Lists/????.csv"};
 
-    static constexpr auto header_height = 9 * 8;
+    static constexpr auto header_height = 12 * 8;
     static constexpr auto switch_button_height = 3 * 16;
 
     OptionsField options_channel{
@@ -317,7 +328,8 @@ class BLERxView : public View {
          {"Hits", 1},
          {"dB", 2},
          {"Time", 3},
-         {"Name", 4}}};
+         {"Name", 4},
+         {"Info", 5}}};
 
     Button button_filter{
         {11 * 8, 2 * 8, 7 * 8, 16},
@@ -325,9 +337,13 @@ class BLERxView : public View {
 
     OptionsField options_filter{
         {18 * 8 + 2, 2 * 8},
-        4,
+        7,
         {{"Data", 0},
-         {"MAC", 1}}};
+         {"MAC", 1},
+         {"Name", 2},
+         {"Info", 3},
+         {"Vendor", 4},
+         {"Channel", 5}}};
 
     Checkbox check_log{
         {10 * 8, 4 * 8 + 2},
@@ -341,36 +357,45 @@ class BLERxView : public View {
         "Name",
         true};
 
-    Button button_find{
-        {0 * 8, 7 * 8 - 2, 4 * 8, 16},
-        "Find"};
-
-    Labels label_found{
-        {{5 * 8, 7 * 8 - 2}, "Found:", Theme::getInstance()->fg_light->foreground}};
-
-    Text text_found_count{
-        {11 * 8, 7 * 8 - 2, 20 * 8, 16},
-        "0/0"};
-
     Checkbox check_serial_log{
         {18 * 8 + 2, 4 * 8 + 2},
         7,
         "USB Log",
         true};
 
-    // Console console{
-    //     {0, 10 * 8, screen_height, screen_height-80}};
+    Checkbox check_unique{
+        {0 * 8 + 2, 7 * 8 + 2},
+        7,
+        "Unique",
+        true};
+
+    Checkbox check_duplicate_packets{
+        {10 * 8 + 2, 7 * 8 + 2},
+        7,
+        "Duplicate",
+        true};
+
+    Button button_find{
+        {0 * 8, 10 * 8 - 2, 4 * 8, 16},
+        "Find"};
+
+    Labels label_found{
+        {{5 * 8, 10 * 8 - 2}, "Found:", Theme::getInstance()->fg_light->foreground}};
+
+    Text text_found_count{
+        {11 * 8, 10 * 8 - 2, 20 * 8, 16},
+        "0/0"};
 
     Button button_clear_list{
-        {2 * 8, screen_height - (16 + 32), 7 * 8, 32},
+        {2 * 8, 320 - (16 + 32), 7 * 8, 32},
         "Clear"};
 
     Button button_save_list{
-        {11 * 8, screen_height - (16 + 32), 11 * 8, 32},
+        {11 * 8, 320 - (16 + 32), 11 * 8, 32},
         "Export CSV"};
 
     Button button_switch{
-        {screen_width - 6 * 8, screen_height - (16 + 32), 4 * 8, 32},
+        {240 - 6 * 8, 320 - (16 + 32), 4 * 8, 32},
         "Tx"};
 
     std::string str_log{""};
@@ -379,10 +404,10 @@ class BLERxView : public View {
     BleRecentEntries recent{};
     BleRecentEntries tempList{};
 
-    const RecentEntriesColumns columns{{
-        {"Mac Address", 17},
+    RecentEntriesColumns columns{{
+        {"Name", 17},
         {"Hits", 7},
-        {"dB", 4},
+        {"dBm", 4},
     }};
 
     BleRecentEntriesView recent_entries_view{columns, recent};

firmware/application/apps/ble_tx_app.cpp

@@ -35,6 +35,7 @@
 #include "rtc_time.hpp"
 #include "string_format.hpp"
 #include "file_path.hpp"
+#include "usb_serial_asyncmsg.hpp"
 
 using namespace portapack;
 using namespace modems;
@@ -123,6 +124,31 @@ static std::uint64_t get_freq_by_channel_number(uint8_t channel_number) {
 
 namespace ui {
 
+PKT_TYPE get_pkt_type_from_string(const std::string& type_str) {
+    if (type_str == "RAW") {
+        return PKT_TYPE_RAW;
+    } else if (type_str == "DISCOVERY") {
+        return PKT_TYPE_DISCOVERY;
+    } else if (type_str == "IBEACON") {
+        return PKT_TYPE_IBEACON;
+    } else if (type_str == "ADV_IND") {
+        return PKT_TYPE_ADV_IND;
+    } else if (type_str == "ADV_DIRECT_IND") {
+        return PKT_TYPE_ADV_DIRECT_IND;
+    } else if (type_str == "ADV_NONCONN_IND") {
+        return PKT_TYPE_ADV_NONCONN_IND;
+    } else if (type_str == "ADV_SCAN_IND") {
+        return PKT_TYPE_ADV_SCAN_IND;
+    } else if (type_str == "SCAN_REQ") {
+        return PKT_TYPE_SCAN_REQ;
+    } else if (type_str == "SCAN_RSP") {
+        return PKT_TYPE_SCAN_RSP;
+    } else if (type_str == "CONNECT_REQ") {
+        return PKT_TYPE_CONNECT_REQ;
+    }
+    return PKT_TYPE_INVALID_TYPE;
+}
+
 void BLETxView::focus() {
     button_open.focus();
 }
@@ -167,28 +193,11 @@ void BLETxView::toggle() {
     }
 }
 
-void BLETxView::start() {
-    baseband::run_image(portapack::spi_flash::image_tag_btle_tx);
-    transmitter_model.enable();
-
+void BLETxView::send_packet() {
     // Generate new random Mac Address.
+    transmitter_model.enable();
     generateRandomMacAddress(randomMac);
 
-    // If this is our first run, check file.
-    if (!is_active()) {
-        File data_file;
-
-        auto error = data_file.open(file_path);
-        if (error && !file_override) {
-            file_error();
-            check_loop.set_value(false);
-            return;
-        }
-
-        button_play.set_bitmap(&bitmap_stop);
-        is_running = true;
-    }
-
     char advertisementData[63] = {0};
     strcpy(advertisementData, packets[current_packet].advertisementData);
 
@@ -235,9 +244,28 @@ void BLETxView::start() {
         }
     }
 
-    // Setup next packet configuration.
-    progressbar.set_max(packets[current_packet].packet_count);
-    baseband::set_btletx(channel_number, random_mac ? randomMac : packets[current_packet].macAddress, advertisementData, pduType);
+    progressbar.set_value(packets[current_packet].packet_count - packet_counter);
+    text_packets_sent.set(to_string_dec_uint(packet_counter));
+
+    baseband::set_btletx(channel_number, random_mac ? randomMac : packets[current_packet].macAddress, advertisementData, packets[current_packet].pduType);
+
+    packetDone = false;
+}
+
+void BLETxView::start() {
+    if (file_path.empty()) {
+        file_error();
+        check_loop.set_value(false);
+        return;
+    }
+
+    baseband::run_image(portapack::spi_flash::image_tag_btle_tx);
+    transmitter_model.enable();
+
+    button_play.set_bitmap(&bitmap_stop);
+    is_running = true;
+
+    send_packet();
 }
 
 void BLETxView::stop() {
@@ -253,66 +281,69 @@ void BLETxView::stop() {
     is_running = false;
 }
 
-void BLETxView::reset() {
-    transmitter_model.disable();
-    baseband::shutdown();
-
-    start();
-}
-
 // called each 1/60th of second, so 6 = 100ms
 void BLETxView::on_timer() {
     if (++timer_count == timer_period) {
         timer_count = 0;
 
-        if (is_active()) {
-            // Reached end of current packet repeats.
-            if (packet_counter == 0) {
-                // Done sending all packets.
-                if (current_packet == (num_packets - 1)) {
-                    current_packet = 0;
-
-                    // If looping, restart from beginning.
-                    if (check_loop.value()) {
-                        update_current_packet(packets[current_packet], current_packet);
-                        reset();
-                    } else {
-                        stop();
-                    }
-                } else {
-                    current_packet++;
-                    update_current_packet(packets[current_packet], current_packet);
-                    reset();
-                }
-            } else {
-                reset();
-            }
-        }
-    }
-
-    if (++auto_channel_counter == auto_channel_period) {
-        auto_channel_counter = 0;
-
-        if (auto_channel) {
-            int min = 37;
-            int max = 39;
-
-            channel_number = min + std::rand() % (max - min + 1);
-
-            field_frequency.set_value(get_freq_by_channel_number(channel_number));
+        if (is_active() && packetDone) {
+            send_packet();
         }
     }
 }
 
-void BLETxView::on_tx_progress(const bool done) {
+void BLETxView::on_tx_progress(const bool done, uint32_t progress) {
+    // TODO: make use of progress variable
+    (void)progress;
     if (done) {
         if (is_active()) {
-            if ((packet_counter % 10) == 0) {
-                text_packets_sent.set(to_string_dec_uint(packet_counter));
-            }
+            transmitter_model.disable();
+            if (auto_channel) {
+                switch (advCount) {
+                    case 0:
+                        channel_number = 37;
+                        break;
+                    case 1:
+                        channel_number = 38;
+                        break;
+                    case 2:
+                        channel_number = 39;
+                        break;
+                }
 
-            packet_counter--;
-            progressbar.set_value(packets[current_packet].packet_count - packet_counter);
+                field_frequency.set_value(get_freq_by_channel_number(channel_number));
+
+                if (advCount == 3) {
+                    channel_number = 37;
+                    packet_counter--;
+                    packetDone = true;
+                    advCount = 0;
+                } else {
+                    send_packet();
+                    advCount++;
+                }
+            } else {
+                packet_counter--;
+                packetDone = true;
+            }
+        }
+
+        // Reached end of current packet repeats.
+        if (packet_counter == 0) {
+            // Done sending all packets.
+            if (current_packet == (num_packets - 1)) {
+                current_packet = 0;
+
+                // If looping, restart from beginning.
+                if (check_loop.value()) {
+                    update_current_packet(packets[current_packet], current_packet);
+                } else {
+                    stop();
+                }
+            } else {
+                current_packet++;
+                update_current_packet(packets[current_packet], current_packet);
+            }
         }
     }
 }
@@ -331,7 +362,6 @@ BLETxView::BLETxView(NavigationView& nav)
                   &label_speed,
                   &options_speed,
                   &options_channel,
-                  &options_adv_type,
                   &label_marked_data,
                   &marked_data_sequence,
                   &label_packet_index,
@@ -371,13 +401,8 @@ BLETxView::BLETxView(NavigationView& nav)
         timer_count = 0;
     };
 
-    options_adv_type.on_change = [this](size_t, int32_t i) {
-        pduType = (PKT_TYPE)i;
-    };
-
     options_speed.set_selected_index(0);
-    options_channel.set_selected_index(0);
-    options_adv_type.set_selected_index(0);
+    options_channel.set_selected_index(3);
 
     check_rand_mac.set_value(false);
     check_rand_mac.on_select = [this](Checkbox&, bool v) {
@@ -482,17 +507,25 @@ void BLETxView::on_file_changed(const fs::path& new_file_path) {
         do {
             readUntil(data_file, packets[num_packets].macAddress, mac_address_size_str, ' ');
             readUntil(data_file, packets[num_packets].advertisementData, max_packet_size_str, ' ');
+            readUntil(data_file, packets[num_packets].packetType, max_packet_type_str, ' ');
             readUntil(data_file, packets[num_packets].packetCount, max_packet_repeat_str, '\n');
 
             uint64_t macAddressSize = strlen(packets[num_packets].macAddress);
             uint64_t advertisementDataSize = strlen(packets[num_packets].advertisementData);
             uint64_t packetCountSize = strlen(packets[num_packets].packetCount);
+            uint64_t packetTypeSize = strlen(packets[num_packets].packetType);
 
             packets[num_packets].packet_count = stringToUint32(packets[num_packets].packetCount);
+            packets[num_packets].pduType = (PKT_TYPE)get_pkt_type_from_string(packets[num_packets].packetType);
 
             // Verify Data.
-            if ((macAddressSize == mac_address_size_str) && (advertisementDataSize < max_packet_size_str) && (packetCountSize < max_packet_repeat_str) &&
-                hasValidHexPairs(packets[num_packets].macAddress, macAddressSize / 2) && hasValidHexPairs(packets[num_packets].advertisementData, advertisementDataSize / 2) && (packets[num_packets].packet_count >= 1) && (packets[num_packets].packet_count < max_packet_repeat_count)) {
+            if ((macAddressSize == mac_address_size_str) &&
+                (advertisementDataSize < max_packet_size_str) &&
+                (packetCountSize < max_packet_repeat_str) &&
+                hasValidHexPairs(packets[num_packets].macAddress, macAddressSize / 2) &&
+                hasValidHexPairs(packets[num_packets].advertisementData, advertisementDataSize / 2) &&
+                (packets[num_packets].packet_count >= 1) && (packets[num_packets].packet_count < max_packet_repeat_count) &&
+                (packetTypeSize <= max_packet_type_str)) {
                 text_filename.set(truncate(file_path.filename().string(), 12));
 
             } else {
@@ -510,6 +543,8 @@ void BLETxView::on_file_changed(const fs::path& new_file_path) {
         } while (num_packets < max_num_packets);
 
         update_current_packet(packets[0], 0);
+
+        data_file.close();
     }
 }
 
@@ -540,6 +575,8 @@ void BLETxView::update_current_packet(BLETxPacket packet, uint32_t currentIndex)
 
     text_mac_address.set(formattedMacAddress);
 
+    progressbar.set_max(packet.packet_count);
+
     packet_counter = packet.packet_count;
     current_packet = currentIndex;
 
@@ -550,7 +587,7 @@ void BLETxView::update_current_packet(BLETxPacket packet, uint32_t currentIndex)
         dataFile.write("\n", 1);
     }
 
-    dataFile.~File();
+    dataFile.close();
 
     auto result = FileWrapper::open(dataTempFilePath);
 

firmware/application/apps/ble_tx_app.hpp

@@ -38,6 +38,8 @@
 #include "utility.hpp"
 #include "file_path.hpp"
 
+#include "ble_tx_app.hpp"
+
 #include "recent_entries.hpp"
 
 #include <string>
@@ -91,8 +93,9 @@ struct BLETxPacket {
     char macAddress[13];
     char advertisementData[63];
     char packetCount[11];
+    char packetType[17];
     uint32_t packet_count;
-    PKT_TYPE packetType;
+    PKT_TYPE pduType;
 };
 
 class BLETxView : public View {
@@ -109,8 +112,8 @@ class BLETxView : public View {
     bool is_active() const;
     void toggle();
     void start();
+    void send_packet();
     void stop();
-    void reset();
     void handle_replay_thread_done(const uint32_t return_code);
     void file_error();
     bool saveFile(const std::filesystem::path& path);
@@ -122,7 +125,7 @@ class BLETxView : public View {
     void on_data(uint32_t value, bool is_data);
     void on_file_changed(const std::filesystem::path& new_file_path);
     void on_save_file(const std::string value);
-    void on_tx_progress(const bool done);
+    void on_tx_progress(const bool done, uint32_t progress);
     void on_random_data_change(std::string value);
     void update_current_packet(BLETxPacket packet, uint32_t currentIndex);
 
@@ -156,6 +159,8 @@ class BLETxView : public View {
     uint32_t packet_counter{0};
     uint32_t num_packets{0};
     uint32_t current_packet{0};
+    uint8_t packetTxCount{0};
+    bool packetDone = false;
     bool random_mac = false;
     bool file_override = false;
 
@@ -170,17 +175,17 @@ class BLETxView : public View {
     std::vector<uint16_t> markedBytes{};
     CursorPos cursor_pos{};
     uint8_t marked_counter = 0;
+    uint8_t advCount = 0;
 
     static constexpr uint8_t mac_address_size_str{12};
     static constexpr uint8_t max_packet_size_str{62};
     static constexpr uint8_t max_packet_repeat_str{10};
+    static constexpr uint8_t max_packet_type_str{16};
     static constexpr uint32_t max_packet_repeat_count{UINT32_MAX};
     static constexpr uint32_t max_num_packets{32};
 
     BLETxPacket packets[max_num_packets];
 
-    PKT_TYPE pduType = {PKT_TYPE_DISCOVERY};
-
     static constexpr auto header_height = 10 * 16;
     static constexpr auto switch_button_height = 6 * 16;
 
@@ -216,7 +221,7 @@ class BLETxView : public View {
         true};
 
     ImageButton button_play{
-        {screen_width - 2 * 8, 2 * 16, 2 * 8, 1 * 16},
+        {28 * 8, 2 * 16, 2 * 8, 1 * 16},
         &bitmap_play,
         Theme::getInstance()->fg_green->foreground,
         Theme::getInstance()->fg_green->background};
@@ -227,11 +232,11 @@ class BLETxView : public View {
     OptionsField options_speed{
         {7 * 8, 6 * 8},
         3,
-        {{"1 ", 1},     // 16ms
-         {"2 ", 2},     // 32ms
-         {"3 ", 3},     // 48ms
-         {"4 ", 6},     // 100ms
-         {"5 ", 12}}};  // 200ms
+        {{"1 ", 2},     // 25ms
+         {"2 ", 4},     // 50ms
+         {"3 ", 6},     // 75ms
+         {"4 ", 8},     // 100ms
+         {"5 ", 12}}};  // 150ms
 
     OptionsField options_channel{
         {11 * 8, 6 * 8},
@@ -288,7 +293,7 @@ class BLETxView : public View {
         {{0 * 8, 9 * 16}, "Packet Data:", Theme::getInstance()->fg_light->foreground}};
 
     TextViewer dataEditView{
-        {0, 9 * 18, screen_width, screen_height - 80}};
+        {0, 9 * 18, 240, 240}};
 
     Button button_clear_marked{
         {1 * 8, 14 * 16, 13 * 8, 3 * 8},
@@ -320,7 +325,7 @@ class BLETxView : public View {
         Message::ID::TXProgress,
         [this](const Message* const p) {
             const auto message = *reinterpret_cast<const TXProgressMessage*>(p);
-            this->on_tx_progress(message.done);
+            this->on_tx_progress(message.done, message.progress);
         }};
 
     MessageHandlerRegistration message_handler_frame_sync{

firmware/application/apps/ui_aprs_rx.cpp

@@ -247,8 +247,8 @@ APRSTableView::APRSTableView(NavigationView& nav, Rect parent_rec)
 
     details_view.hidden(true);
 
-    recent_entries_view.set_parent_rect({0, 0, screen_width, screen_width - 40});
-    details_view.set_parent_rect({0, 0, screen_width, screen_width - 40});
+    recent_entries_view.set_parent_rect({0, 0, screen_width, screen_height - 40});
+    details_view.set_parent_rect({0, 0, screen_width, screen_height - 40});
 
     recent_entries_view.on_select = [this](const APRSRecentEntry& entry) {
         this->on_show_detail(entry);

firmware/application/apps/ui_subghzd.cpp

@@ -84,6 +84,7 @@ void SubGhzDView::focus() {
 SubGhzDView::SubGhzDView(NavigationView& nav)
     : nav_{nav} {
     add_children({&rssi,
+                  &channel,
                   &field_rf_amp,
                   &field_lna,
                   &field_vga,

firmware/application/apps/ui_subghzd.hpp

@@ -129,6 +129,9 @@ class SubGhzDView : public View {
         {18 * 8, 0 * 16}};
     RSSI rssi{
         {21 * 8, 0, 6 * 8, 4}};
+    Channel channel{
+        {21 * 8, 5, 6 * 8, 4},
+    };
     RxFrequencyField field_frequency{
         {0 * 8, 0 * 16},
         nav_};

firmware/application/apps/ui_weatherstation.cpp

@@ -107,6 +107,7 @@ void WeatherView::focus() {
 WeatherView::WeatherView(NavigationView& nav)
     : nav_{nav} {
     add_children({&rssi,
+                  &channel,
                   &field_rf_amp,
                   &field_lna,
                   &field_vga,

firmware/application/apps/ui_weatherstation.hpp

@@ -147,6 +147,9 @@ class WeatherView : public View {
         {18 * 8, 0 * 16}};
     RSSI rssi{
         {21 * 8, 0, 6 * 8, 4}};
+    Channel channel{
+        {21 * 8, 5, 6 * 8, 4},
+    };
 
     AudioVolumeField field_volume{
         {screen_width - 2 * 8, 0 * 16}};

firmware/application/baseband_api.cpp

@@ -186,13 +186,14 @@ void set_nrf(const uint32_t baudrate, const uint32_t word_length, const uint32_t
     send_message(&message);
 }
 
-void set_fsk(const size_t deviation) {
+void set_fsk(const uint8_t samplesPerSymbol, const uint32_t syncWord, const uint8_t syncWordLength, const uint32_t preamble, const uint8_t preambleLength, uint16_t numDataBytes) {
     const FSKRxConfigureMessage message{
-        taps_200k_decim_0,
-        taps_16k0_decim_1,
-        taps_11k0_channel,
-        2,
-        deviation};
+        samplesPerSymbol,
+        syncWord,
+        syncWordLength,
+        preamble,
+        preambleLength,
+        numDataBytes};
 
     send_message(&message);
 }

firmware/application/baseband_api.hpp

@@ -80,7 +80,7 @@ void set_pitch_rssi(int32_t avg, bool enabled);
 void set_afsk_data(const uint32_t afsk_samples_per_bit, const uint32_t afsk_phase_inc_mark, const uint32_t afsk_phase_inc_space, const uint8_t afsk_repeat, const uint32_t afsk_bw, const uint8_t symbol_count);
 void kill_afsk();
 void set_afsk(const uint32_t baudrate, const uint32_t word_length, const uint32_t trigger_value, const bool trigger_word);
-void set_fsk(const size_t deviation);
+void set_fsk(const uint32_t samplesPerSymbol, const uint32_t syncWord, const uint8_t syncWordLength, const uint32_t preamble, const uint8_t preambleLength, uint16_t numDataBytes);
 void set_aprs(const uint32_t baudrate);
 
 void set_btlerx(uint8_t channel_number);

firmware/application/external/battleship/main.cpp

@@ -0,0 +1,55 @@
+/*
+ * ------------------------------------------------------------
+ * |  Made by RocketGod                                       |
+ * |  Find me at https://betaskynet.com                       |
+ * |  Argh matey!                                             |
+ * ------------------------------------------------------------
+ */
+
+#include "ui.hpp"
+#include "ui_battleship.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::battleship {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<BattleshipView>();
+}
+}  // namespace ui::external_app::battleship
+
+extern "C" {
+
+__attribute__((section(".external_app.app_battleship.application_information"), used)) application_information_t _application_information_battleship = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::battleship::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Battleship",
+    /*.bitmap_data = */ {
+        // Pirate galleon - 16x16
+        0x80, 0x00,  // ........#.......
+        0x80, 0x00,  // ........#.......
+        0x80, 0x00,  // ........#.......
+        0xC0, 0x01,  // .......###......
+        0xE0, 0x03,  // ......#####.....
+        0xF0, 0x07,  // .....#######....
+        0xF8, 0x0F,  // ....#########...
+        0xFC, 0x1F,  // ...###########..
+        0xFE, 0x3F,  // ..#############.
+        0x00, 0x01,  // .......#........
+        0x00, 0x01,  // .......#........
+        0x00, 0x01,  // .......#........
+        0xFC, 0x3F,  // ..############..
+        0xFE, 0x7F,  // .##############.
+        0xFF, 0xFF,  // ################
+        0xFC, 0x3F,  // ..############..
+    },
+    /*.icon_color = */ ui::Color::blue().v,
+    /*.menu_location = */ app_location_t::GAMES,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = */ {'P', 'P', 'O', '2'},  // Use POCSAG2 baseband (larger than FSKTX)
+    /*.m4_app_offset = */ 0x00000000,         // will be filled at compile time
+};
+}

firmware/application/external/battleship/ui_battleship.hpp

@@ -0,0 +1,250 @@
+/*
+ * ------------------------------------------------------------
+ * |  Made by RocketGod                                       |
+ * |  Find me at https://betaskynet.com                       |
+ * |  Argh matey!                                             |
+ * ------------------------------------------------------------
+ */
+
+#ifndef __UI_BATTLESHIP_H__
+#define __UI_BATTLESHIP_H__
+
+#include "ui.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_transmitter.hpp"
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "baseband_api.hpp"
+#include "string_format.hpp"
+#include "audio.hpp"
+#include "message.hpp"
+#include "pocsag.hpp"
+
+#include <array>
+
+namespace ui::external_app::battleship {
+
+constexpr uint8_t GRID_SIZE = 10;
+constexpr uint8_t CELL_SIZE = 24;
+constexpr uint8_t GRID_OFFSET_X = 0;
+constexpr uint8_t GRID_OFFSET_Y = 32;
+
+enum class ShipType : uint8_t {
+    CARRIER = 5,
+    BATTLESHIP = 4,
+    CRUISER = 3,
+    SUBMARINE = 3,
+    DESTROYER = 2
+};
+
+enum class GameState : uint8_t {
+    MENU,
+    PLACING_SHIPS,
+    WAITING_FOR_OPPONENT,
+    MY_TURN,
+    OPPONENT_TURN,
+    GAME_OVER
+};
+
+enum class CellState : uint8_t {
+    EMPTY,
+    SHIP,
+    HIT,
+    MISS,
+    SUNK
+};
+
+enum class MessageType : uint8_t {
+    READY,
+    SHOT,
+    HIT,
+    MISS,
+    SUNK,
+    WIN
+};
+
+struct Ship {
+    ShipType type;
+    uint8_t x;
+    uint8_t y;
+    bool horizontal;
+    uint8_t hits;
+    bool placed;
+
+    uint8_t size() const {
+        return static_cast<uint8_t>(type);
+    }
+
+    bool is_sunk() const {
+        return hits >= size();
+    }
+};
+
+struct GameMessage {
+    MessageType type;
+    uint8_t x;
+    uint8_t y;
+};
+
+class BattleshipView : public View {
+   public:
+    BattleshipView(NavigationView& nav);
+    ~BattleshipView();
+
+    void focus() override;
+    void paint(Painter& painter) override;
+    bool on_touch(const TouchEvent event) override;
+    bool on_encoder(const EncoderEvent delta) override;
+    bool on_key(const KeyEvent key) override;
+
+    std::string title() const override { return "Battleship"; }
+
+   private:
+    NavigationView& nav_;
+
+    RxRadioState rx_radio_state_{
+        433920000 /* frequency */,
+        1750000 /* bandwidth */,
+        2280000 /* sampling rate */
+    };
+
+    TxRadioState tx_radio_state_{
+        433920000 /* frequency */,
+        1750000 /* bandwidth */,
+        2280000 /* sampling rate */
+    };
+
+    // Settings
+    bool sound_enabled{true};
+    bool rf_amp_enabled{false};
+    uint8_t lna_gain{24};
+    uint8_t vga_gain{24};
+    uint8_t tx_gain{35};
+
+    app_settings::SettingsManager settings_{
+        "battleship",
+        app_settings::Mode::RX_TX,
+        {{"rx_freq"sv, &rx_frequency},
+         {"tx_freq"sv, &tx_frequency},
+         {"rf_amp"sv, &rf_amp_enabled}}};
+
+    GameState game_state{GameState::MENU};
+    bool is_red_team{false};
+    bool opponent_ready{false};
+    uint8_t wins{0};
+    uint8_t losses{0};
+
+    std::array<std::array<CellState, GRID_SIZE>, GRID_SIZE> my_grid{};
+    std::array<std::array<CellState, GRID_SIZE>, GRID_SIZE> enemy_grid{};
+
+    std::string current_status{"Choose your team!"};
+    std::string current_score{"W:0 L:0"};
+
+    std::array<Ship, 5> my_ships{};
+    uint8_t current_ship_index{0};
+    bool placing_horizontal{true};
+    uint8_t ships_remaining{5};
+    uint8_t enemy_ships_remaining{5};
+
+    uint8_t cursor_x{0};
+    uint8_t cursor_y{0};
+    uint8_t target_x{0};
+    uint8_t target_y{0};
+    bool touch_enabled{true};
+
+    uint32_t tx_frequency{433920000};
+    uint32_t rx_frequency{433920000};
+    bool is_transmitting{false};
+
+    // POCSAG decoding state
+    pocsag::EccContainer ecc{};
+    pocsag::POCSAGState pocsag_state{&ecc};
+    uint32_t last_address{0};
+
+    // UI Elements - Menu/Settings Screen
+    Text text_title{{60, 2, 120, 24}, "BATTLESHIP"};
+    Text text_subtitle{{40, 20, 160, 16}, "Naval Combat Game"};
+
+    Rectangle rect_radio_settings{{12, 40, 216, 118}, Color::dark_grey()};
+    Text label_radio{{17, 45, 100, 16}, "RADIO SETUP"};
+    ButtonWithEncoder button_frequency{{17, 65, 11 * 8, 20}, ""};
+
+    // Radio controls
+    Text label_rf_amp{{17, 90, 35, 16}, "AMP:"};
+    Checkbox checkbox_rf_amp{{55, 90}, 3, "", false};
+
+    Text label_lna{{17, 118, 30, 16}, "LNA:"};
+    NumberField field_lna{{50, 118}, 2, {0, 40}, 8, ' '};
+
+    Text label_vga{{90, 118, 30, 16}, "VGA:"};
+    NumberField field_vga{{125, 118}, 2, {0, 62}, 8, ' '};
+
+    Text label_tx_gain{{155, 118, 25, 16}, "TX:"};
+    NumberField field_tx_gain{{185, 118}, 2, {0, 47}, 8, ' '};
+
+    Rectangle rect_audio_settings{{12, 164, 216, 45}, Color::dark_grey()};
+    Text label_audio{{17, 169, 80, 16}, "AUDIO"};
+    Checkbox checkbox_sound{{17, 187}, 8, "Sound On", true};
+    Text label_volume{{110, 187, 50, 16}, "Volume:"};
+    AudioVolumeField field_volume{{165, 187}};
+
+    Rectangle rect_team_selection{{12, 217, 216, 75}, Color::dark_grey()};
+    Text label_team{{17, 222, 110, 16}, "SELECT TEAM"};
+    Button button_red_team{{25, 242, 85, 45}, "RED\nTEAM"};
+    Button button_blue_team{{130, 242, 85, 45}, "BLUE\nTEAM"};
+
+    // In-game UI elements
+    RSSI rssi{{21 * 8, 0, 6 * 8, 4}};
+    Text text_status{{10, 16, 220, 16}, ""};
+    Text text_score{{170, 16, 60, 16}, ""};
+    Button button_rotate{{10, 265, 65, 32}, "Rotate"};
+    Button button_place{{82, 265, 65, 32}, "Place"};
+    Button button_fire{{82, 265, 65, 32}, "Fire!"};
+    Button button_menu{{155, 265, 65, 32}, "Menu"};
+
+    // Methods
+    void init_game();
+    void reset_game();
+    void start_team(bool red);
+    void setup_ships();
+    void draw_menu_screen(Painter& painter);
+    void draw_grid(Painter& painter, uint8_t grid_x, uint8_t grid_y, const std::array<std::array<CellState, GRID_SIZE>, GRID_SIZE>& grid, bool show_ships, bool is_offense_grid = false);
+    void draw_cell(Painter& painter, uint8_t cell_x, uint8_t cell_y, CellState state, bool show_ships, bool is_offense_grid, bool is_cursor);
+    void draw_ship_preview(Painter& painter);
+    void place_ship();
+    bool can_place_ship(uint8_t x, uint8_t y, uint8_t size, bool horizontal);
+    void fire_at_position();
+    void process_shot(uint8_t x, uint8_t y);
+    void update_score();
+    bool is_cursor_at(uint8_t x, uint8_t y, bool is_offense_grid);
+
+    void send_message(const GameMessage& msg);
+    void process_message(const std::string& message);
+    bool parse_coords(const std::string& coords, uint8_t& x, uint8_t& y);
+    void mark_ship_sunk(uint8_t x, uint8_t y, std::array<std::array<CellState, GRID_SIZE>, GRID_SIZE>& grid);
+
+    void configure_radio_tx();
+    void configure_radio_rx();
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::POCSAGPacket,
+        [this](Message* const p) {
+            const auto message = static_cast<const POCSAGPacketMessage*>(p);
+            on_pocsag_packet(message);
+        }};
+
+    MessageHandlerRegistration message_handler_tx_progress{
+        Message::ID::TXProgress,
+        [this](const Message* const p) {
+            const auto message = static_cast<const TXProgressMessage*>(p);
+            on_tx_progress(message->progress, message->done);
+        }};
+
+    void on_pocsag_packet(const POCSAGPacketMessage* message);
+    void on_tx_progress(const uint32_t progress, const bool done);
+};
+
+}  // namespace ui::external_app::battleship
+
+#endif

firmware/application/external/blackjack/main.cpp

@@ -0,0 +1,53 @@
+/*
+ * Blackjack Game for Portapack Mayhem
+ * Ported / Enhanced / Graphically made awesome by RocketGod (https://betaskynet.com)
+ * Based on BlackJack 83 for TI Calculator by Harper Maddox (was written in Assembly)
+ */
+
+#include "ui.hpp"
+#include "ui_blackjack.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::blackjack {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<BlackjackView>();
+}
+}  // namespace ui::external_app::blackjack
+
+extern "C" {
+
+__attribute__((section(".external_app.app_blackjack.application_information"), used)) application_information_t _application_information_blackjack = {
+    (uint8_t*)0x00000000,
+    ui::external_app::blackjack::initialize_app,
+    CURRENT_HEADER_VERSION,
+    VERSION_MD5,
+
+    "Blackjack",
+    {
+        // Diamond icon 16x16
+        0x00, 0x00,  // ................
+        0x80, 0x01,  // .......##.......
+        0xC0, 0x03,  // ......####......
+        0xE0, 0x07,  // .....######.....
+        0xF0, 0x0F,  // ....########....
+        0xF8, 0x1F,  // ...##########...
+        0xFC, 0x3F,  // ..############..
+        0xFE, 0x7F,  // .##############.
+        0xFE, 0x7F,  // .##############.
+        0xFC, 0x3F,  // ..############..
+        0xF8, 0x1F,  // ...##########...
+        0xF0, 0x0F,  // ....########....
+        0xE0, 0x07,  // .....######.....
+        0xC0, 0x03,  // ......####......
+        0x80, 0x01,  // .......##.......
+        0x00, 0x00,  // ................
+    },
+    ui::Color::red().v,  // Red color for diamonds
+    app_location_t::GAMES,
+    -1,
+
+    {0, 0, 0, 0},
+    0x00000000,
+};
+}

firmware/application/external/blackjack/ui_blackjack.cpp

@@ -0,0 +1,727 @@
+/*
+ * Blackjack Game for Portapack Mayhem
+ * Ported / Enhanced / Graphically made awesome by RocketGod (https://betaskynet.com)
+ * Based on BlackJack 83 for TI Calculator by Harper Maddox (was written in Assembly)
+ */
+
+#include "ui_blackjack.hpp"
+
+namespace ui::external_app::blackjack {
+
+// Global variables
+static BlackjackView* current_instance = nullptr;
+static Callback game_update_callback = nullptr;
+static uint32_t game_update_timeout = 0;
+static uint32_t game_update_counter = 0;
+static Painter painter;
+
+void check_game_timer() {
+    if (game_update_callback) {
+        if (++game_update_counter >= game_update_timeout) {
+            game_update_counter = 0;
+            game_update_callback();
+        }
+    }
+}
+
+void Ticker::attach(Callback func, double delay_sec) {
+    game_update_callback = func;
+    game_update_timeout = delay_sec * 60;
+}
+
+void Ticker::detach() {
+    game_update_callback = nullptr;
+}
+
+void game_timer_check() {
+    if (current_instance) {
+        current_instance->update_game();
+    }
+}
+
+BlackjackView::BlackjackView(NavigationView& nav)
+    : nav_{nav}, game_timer{} {
+    add_children({&dummy});
+    current_instance = this;
+    game_timer.attach(&game_timer_check, 1.0 / 60.0);
+}
+
+BlackjackView::~BlackjackView() {
+    current_instance = nullptr;
+}
+
+void BlackjackView::on_show() {
+    draw_menu_static();
+}
+
+void BlackjackView::paint(Painter& painter) {
+    (void)painter;
+
+    if (!initialized) {
+        initialized = true;
+        std::srand(LPC_RTC->CTIME0);
+        init_deck();
+    }
+}
+
+void BlackjackView::frame_sync() {
+    check_game_timer();
+    set_dirty();
+}
+
+void BlackjackView::clear_screen() {
+    painter.fill_rectangle({0, 0, 240, 320}, Color::black());
+}
+
+void BlackjackView::init_deck() {
+    // Initialize deck with card values 0-51
+    // 0-12 = Spades (A-K), 13-25 = Hearts, 26-38 = Diamonds, 39-51 = Clubs
+    for (int i = 0; i < 52; i++) {
+        deck[i] = i;
+    }
+    shuffle_deck();
+}
+
+void BlackjackView::shuffle_deck() {
+    // Simple shuffle using random swaps
+    for (int i = 51; i > 0; i--) {
+        int j = rand() % (i + 1);
+        uint8_t temp = deck[i];
+        deck[i] = deck[j];
+        deck[j] = temp;
+    }
+    deck_position = 0;
+}
+
+uint8_t BlackjackView::draw_card() {
+    if (deck_position >= 52) {
+        shuffle_deck();
+    }
+    return deck[deck_position++];
+}
+
+int BlackjackView::get_card_value(uint8_t card) {
+    int value = (card % 13) + 1;  // 1-13
+    if (value > 10) value = 10;   // Face cards worth 10
+    return value;
+}
+
+uint8_t BlackjackView::get_card_suit(uint8_t card) {
+    return card / 13;  // 0=Spades, 1=Hearts, 2=Diamonds, 3=Clubs
+}
+
+std::string BlackjackView::get_card_string(uint8_t card) {
+    int value = (card % 13) + 1;
+    std::string result;
+
+    if (value == 1)
+        result = "A";
+    else if (value == 11)
+        result = "J";
+    else if (value == 12)
+        result = "Q";
+    else if (value == 13)
+        result = "K";
+    else if (value == 10)
+        result = "10";  // Special case for 10
+    else
+        result = std::to_string(value);
+
+    return result;
+}
+
+int BlackjackView::calculate_hand_value(uint8_t* cards, uint8_t count) {
+    int value = 0;
+    int aces = 0;
+
+    for (uint8_t i = 0; i < count; i++) {
+        int card_val = get_card_value(cards[i]);
+        if (card_val == 1) {
+            aces++;
+            value += 1;
+        } else {
+            value += card_val;
+        }
+    }
+
+    // Convert aces from 1 to 11 if beneficial
+    while (aces > 0 && value + 10 <= 21) {
+        value += 10;
+        aces--;
+    }
+
+    return value;
+}
+
+void BlackjackView::deal_cards() {
+    // Clear hands
+    player_card_count = 0;
+    dealer_card_count = 0;
+
+    // Deal initial cards
+    player_cards[player_card_count++] = draw_card();
+    dealer_cards[dealer_card_count++] = draw_card();
+    player_cards[player_card_count++] = draw_card();
+    dealer_cards[dealer_card_count++] = draw_card();
+
+    dealer_hidden = true;
+    game_state = GameState::PLAYING;
+}
+
+void BlackjackView::player_hit() {
+    if (player_card_count < MAX_CARDS_IN_HAND) {
+        player_cards[player_card_count++] = draw_card();
+
+        int value = calculate_hand_value(player_cards, player_card_count);
+        if (value > 21) {
+            // Bust!
+            cash = (cash >= bet) ? cash - bet : 0;
+            losses++;
+            game_state = GameState::GAME_OVER;
+        }
+    }
+}
+
+void BlackjackView::player_stay() {
+    dealer_hidden = false;
+    game_state = GameState::DEALER_TURN;
+    dealer_timer = 0;
+}
+
+void BlackjackView::dealer_turn() {
+    int dealer_value = calculate_hand_value(dealer_cards, dealer_card_count);
+
+    if (dealer_value < 17 && dealer_card_count < MAX_CARDS_IN_HAND) {
+        dealer_cards[dealer_card_count++] = draw_card();
+    } else {
+        check_game_over();
+    }
+}
+
+void BlackjackView::check_game_over() {
+    int player_value = calculate_hand_value(player_cards, player_card_count);
+    int dealer_value = calculate_hand_value(dealer_cards, dealer_card_count);
+
+    if (player_value > 21) {
+        // Player bust (already handled)
+    } else if (dealer_value > 21) {
+        // Dealer bust - player wins
+        cash += bet;
+        wins++;
+    } else if (player_value > dealer_value) {
+        // Player wins
+        cash += bet;
+        wins++;
+    } else if (player_value < dealer_value) {
+        // Dealer wins
+        cash = (cash >= bet) ? cash - bet : 0;
+        losses++;
+    }
+    // Else it's a tie - no money changes hands
+
+    if (cash > high_score) {
+        high_score = cash;
+    }
+
+    game_state = GameState::GAME_OVER;
+}
+
+void BlackjackView::update_game() {
+    switch (game_state) {
+        case GameState::MENU:
+            draw_menu();
+            break;
+
+        case GameState::BETTING:
+            draw_betting();
+            break;
+
+        case GameState::PLAYING:
+            draw_game();
+            break;
+
+        case GameState::DEALER_TURN:
+            if (++dealer_timer >= 60) {  // 1 second delay
+                dealer_timer = 0;
+                dealer_turn();
+            }
+            draw_game();
+            break;
+
+        case GameState::GAME_OVER:
+            draw_game();
+            break;
+
+        case GameState::STATS:
+            draw_stats();
+            break;
+    }
+}
+
+void BlackjackView::draw_menu_static() {
+    clear_screen();
+
+    auto style_title = *ui::Theme::getInstance()->fg_green;
+    auto style_text = *ui::Theme::getInstance()->fg_light;
+    auto style_rules = *ui::Theme::getInstance()->fg_cyan;
+
+    painter.draw_string({84, 20}, style_title, "BLACKJACK");
+
+    // Draw rules
+    painter.draw_string({70, 55}, style_rules, "-- RULES --");
+    painter.draw_string({61, 75}, style_text, "Get close to 21");
+    painter.draw_string({61, 90}, style_text, "without going over");
+    painter.draw_string({61, 110}, style_text, "Dealer hits on 16");
+    painter.draw_string({61, 125}, style_text, "Dealer stays on 17");
+    painter.draw_string({61, 145}, style_text, "Blackjack pays 1:1");
+
+    // Controls
+    painter.draw_string({65, 175}, style_rules, "-- CONTROLS --");
+    painter.draw_string({61, 195}, style_text, "SELECT: Start/Hit");
+    painter.draw_string({61, 210}, style_text, "LEFT: Stats");
+    painter.draw_string({61, 225}, style_text, "RIGHT: Exit/Stay");
+
+    // Draw high score
+    painter.draw_string({61, 250}, style_text, "High Score: $" + std::to_string(high_score));
+}
+
+void BlackjackView::draw_menu() {
+    // Only handle the flashing text animation
+    if (++blink_counter >= 30) {
+        blink_counter = 0;
+        blink_state = !blink_state;
+
+        if (blink_state) {
+            auto style = *ui::Theme::getInstance()->fg_yellow;
+            painter.draw_string({55, 280}, style, "* PRESS SELECT *");
+        } else {
+            // Clear just the text area
+            painter.fill_rectangle({55, 278, 130, 20}, Color::black());
+        }
+    }
+}
+
+void BlackjackView::draw_stats() {
+    clear_screen();
+
+    auto style_title = *ui::Theme::getInstance()->fg_green;
+    auto style_text = *ui::Theme::getInstance()->fg_light;
+    auto style_value = *ui::Theme::getInstance()->fg_yellow;
+
+    painter.draw_string({75, 30}, style_title, "STATISTICS");
+
+    painter.draw_string({30, 80}, style_text, "Wins:");
+    painter.draw_string({150, 80}, style_value, std::to_string(wins));
+
+    painter.draw_string({30, 100}, style_text, "Losses:");
+    painter.draw_string({150, 100}, style_value, std::to_string(losses));
+
+    // Win percentage
+    uint32_t total = wins + losses;
+    if (total > 0) {
+        uint32_t win_pct = (wins * 100) / total;
+        painter.draw_string({30, 120}, style_text, "Win %:");
+        painter.draw_string({150, 120}, style_value, std::to_string(win_pct) + "%");
+    }
+
+    painter.draw_string({30, 160}, style_text, "High Score:");
+    painter.draw_string({150, 160}, style_value, "$" + std::to_string(high_score));
+
+    painter.draw_string({30, 180}, style_text, "Cash:");
+    painter.draw_string({150, 180}, style_value, "$" + std::to_string(cash));
+
+    painter.draw_string({40, 250}, style_text, "SELECT: Back");
+}
+
+void BlackjackView::draw_betting() {
+    static uint32_t last_bet = 0;
+    static bool betting_drawn = false;
+
+    if (!betting_drawn) {
+        clear_screen();
+
+        auto style_title = *ui::Theme::getInstance()->fg_green;
+        auto style_text = *ui::Theme::getInstance()->fg_light;
+
+        painter.draw_string({70, 40}, style_title, "PLACE BET");
+        painter.draw_string({30, 80}, style_text, "Cash: $" + std::to_string(cash));
+
+        painter.draw_string({30, 140}, style_text, "ENCODER: +/- $10");
+        painter.draw_string({30, 160}, style_text, "SELECT: Deal");
+
+        betting_drawn = true;
+        last_bet = 0;
+    }
+
+    // Update bet display
+    if (bet != last_bet) {
+        painter.fill_rectangle({30, 110, 150, 20}, Color::black());
+        painter.draw_string({30, 110}, *ui::Theme::getInstance()->fg_yellow, "Bet: $" + std::to_string(bet));
+        last_bet = bet;
+    }
+}
+
+void BlackjackView::draw_game() {
+    static int last_player_count = -1;
+    static int last_dealer_count = -1;
+    static GameState last_game_state = GameState::MENU;
+    static uint32_t last_bet = 0;
+
+    // Clear and redraw if hands changed or game state changed
+    if (player_card_count != last_player_count || dealer_card_count != last_dealer_count || game_state != last_game_state) {
+        clear_screen();
+
+        auto style = *ui::Theme::getInstance()->fg_green;
+        painter.draw_string({10, 10}, style, "Cash: $" + std::to_string(cash));
+        painter.draw_string({140, 10}, style, "Bet: $" + std::to_string(bet));
+
+        // Draw dealer hand with value next to label
+        auto style_value = *ui::Theme::getInstance()->fg_yellow;
+        painter.draw_string({10, 45}, *ui::Theme::getInstance()->fg_light, "Dealer:");
+        if (!dealer_hidden || game_state == GameState::GAME_OVER) {
+            int dealer_value = calculate_hand_value(dealer_cards, dealer_card_count);
+            painter.draw_string({70, 45}, style_value, "(" + std::to_string(dealer_value) + ")");
+        }
+        draw_hand(10, 65, dealer_cards, dealer_card_count, true);
+
+        // Draw player hand with value next to label
+        painter.draw_string({10, 165}, *ui::Theme::getInstance()->fg_light, "You:");
+        int player_value = calculate_hand_value(player_cards, player_card_count);
+        painter.draw_string({50, 165}, style_value, "(" + std::to_string(player_value) + ")");
+        draw_hand(10, 185, player_cards, player_card_count, false);
+
+        // Draw controls or result
+        if (game_state == GameState::PLAYING) {
+            auto style_text = *ui::Theme::getInstance()->fg_light;
+            painter.draw_string({30, 290}, style_text, "SELECT: Hit");
+            painter.draw_string({130, 290}, style_text, "RIGHT: Stay");
+        } else if (game_state == GameState::GAME_OVER) {
+            const Style* style_result = ui::Theme::getInstance()->fg_yellow;
+            std::string result;
+
+            if (player_value > 21) {
+                result = "BUST! You Lose";
+                style_result = ui::Theme::getInstance()->fg_red;
+            } else if (calculate_hand_value(dealer_cards, dealer_card_count) > 21) {
+                result = "Dealer Bust! Win!";
+                style_result = ui::Theme::getInstance()->fg_green;
+            } else if (player_value > calculate_hand_value(dealer_cards, dealer_card_count)) {
+                result = "You Win!";
+                style_result = ui::Theme::getInstance()->fg_green;
+            } else if (player_value < calculate_hand_value(dealer_cards, dealer_card_count)) {
+                result = "You Lose";
+                style_result = ui::Theme::getInstance()->fg_red;
+            } else {
+                result = "Push (Tie)";
+            }
+
+            // Draw result
+            painter.draw_string({60, 270}, *style_result, result);
+
+            // Draw compact bet selector in top right area
+            auto style_bet = *ui::Theme::getInstance()->fg_cyan;
+            painter.draw_string({140, 25}, style_bet, "Next: $" + std::to_string(bet));
+
+            // Show controls
+            painter.draw_string({10, 290}, *ui::Theme::getInstance()->fg_light, "SELECT: Deal  ENC: +/-");
+        }
+
+        last_player_count = player_card_count;
+        last_dealer_count = dealer_card_count;
+        last_game_state = game_state;
+        last_bet = bet;
+    } else if (game_state == GameState::GAME_OVER && bet != last_bet) {
+        // Only update the bet display when it changes
+        painter.fill_rectangle({140, 25, 90, 16}, Color::black());
+        painter.draw_string({140, 25}, *ui::Theme::getInstance()->fg_cyan, "Next: $" + std::to_string(bet));
+        last_bet = bet;
+    }
+}
+
+void BlackjackView::draw_suit_symbol(int x, int y, uint8_t suit, Color color, bool large) {
+    if (large) {
+        // Large suit symbols for center of card
+        switch (suit) {
+            case 0:  // Spades
+                // Top curve
+                painter.fill_rectangle({x + 9, y + 4, 2, 2}, color);
+                painter.fill_rectangle({x + 8, y + 5, 4, 2}, color);
+                painter.fill_rectangle({x + 7, y + 6, 6, 2}, color);
+                painter.fill_rectangle({x + 6, y + 7, 8, 2}, color);
+                painter.fill_rectangle({x + 5, y + 8, 10, 2}, color);
+                painter.fill_rectangle({x + 4, y + 9, 12, 2}, color);
+                painter.fill_rectangle({x + 3, y + 10, 14, 2}, color);
+                painter.fill_rectangle({x + 2, y + 11, 16, 2}, color);
+                painter.fill_rectangle({x + 1, y + 12, 18, 2}, color);
+                painter.fill_rectangle({x + 0, y + 13, 20, 3}, color);
+                painter.fill_rectangle({x + 1, y + 16, 18, 2}, color);
+                painter.fill_rectangle({x + 2, y + 17, 16, 1}, color);
+                painter.fill_rectangle({x + 3, y + 18, 14, 1}, color);
+                // Stem
+                painter.fill_rectangle({x + 9, y + 19, 2, 4}, color);
+                painter.fill_rectangle({x + 8, y + 22, 4, 1}, color);
+                painter.fill_rectangle({x + 7, y + 23, 6, 1}, color);
+                painter.fill_rectangle({x + 6, y + 24, 8, 1}, color);
+                break;
+
+            case 1:  // Hearts
+                // Left bump
+                painter.fill_rectangle({x + 3, y + 5, 4, 2}, color);
+                painter.fill_rectangle({x + 2, y + 6, 6, 2}, color);
+                painter.fill_rectangle({x + 1, y + 7, 8, 3}, color);
+                painter.fill_rectangle({x + 0, y + 9, 9, 3}, color);
+                // Right bump
+                painter.fill_rectangle({x + 13, y + 5, 4, 2}, color);
+                painter.fill_rectangle({x + 12, y + 6, 6, 2}, color);
+                painter.fill_rectangle({x + 11, y + 7, 8, 3}, color);
+                painter.fill_rectangle({x + 11, y + 9, 9, 3}, color);
+                // Body
+                painter.fill_rectangle({x + 1, y + 11, 18, 3}, color);
+                painter.fill_rectangle({x + 2, y + 14, 16, 2}, color);
+                painter.fill_rectangle({x + 3, y + 16, 14, 2}, color);
+                painter.fill_rectangle({x + 4, y + 18, 12, 1}, color);
+                painter.fill_rectangle({x + 5, y + 19, 10, 1}, color);
+                painter.fill_rectangle({x + 6, y + 20, 8, 1}, color);
+                painter.fill_rectangle({x + 7, y + 21, 6, 1}, color);
+                painter.fill_rectangle({x + 8, y + 22, 4, 1}, color);
+                painter.fill_rectangle({x + 9, y + 23, 2, 1}, color);
+                break;
+
+            case 2:  // Diamonds
+                painter.fill_rectangle({x + 10, y + 3, 1, 1}, color);
+                painter.fill_rectangle({x + 9, y + 4, 3, 1}, color);
+                painter.fill_rectangle({x + 8, y + 5, 5, 1}, color);
+                painter.fill_rectangle({x + 7, y + 6, 7, 1}, color);
+                painter.fill_rectangle({x + 6, y + 7, 9, 1}, color);
+                painter.fill_rectangle({x + 5, y + 8, 11, 1}, color);
+                painter.fill_rectangle({x + 4, y + 9, 13, 1}, color);
+                painter.fill_rectangle({x + 3, y + 10, 15, 1}, color);
+                painter.fill_rectangle({x + 2, y + 11, 17, 1}, color);
+                painter.fill_rectangle({x + 1, y + 12, 19, 1}, color);
+                painter.fill_rectangle({x + 0, y + 13, 21, 1}, color);
+                painter.fill_rectangle({x + 1, y + 14, 19, 1}, color);
+                painter.fill_rectangle({x + 2, y + 15, 17, 1}, color);
+                painter.fill_rectangle({x + 3, y + 16, 15, 1}, color);
+                painter.fill_rectangle({x + 4, y + 17, 13, 1}, color);
+                painter.fill_rectangle({x + 5, y + 18, 11, 1}, color);
+                painter.fill_rectangle({x + 6, y + 19, 9, 1}, color);
+                painter.fill_rectangle({x + 7, y + 20, 7, 1}, color);
+                painter.fill_rectangle({x + 8, y + 21, 5, 1}, color);
+                painter.fill_rectangle({x + 9, y + 22, 3, 1}, color);
+                painter.fill_rectangle({x + 10, y + 23, 1, 1}, color);
+                break;
+
+            case 3:  // Clubs
+                // Center circle
+                painter.fill_rectangle({x + 8, y + 8, 5, 1}, color);
+                painter.fill_rectangle({x + 7, y + 9, 7, 3}, color);
+                painter.fill_rectangle({x + 8, y + 12, 5, 1}, color);
+                // Left circle
+                painter.fill_rectangle({x + 3, y + 11, 4, 1}, color);
+                painter.fill_rectangle({x + 2, y + 12, 6, 3}, color);
+                painter.fill_rectangle({x + 3, y + 15, 4, 1}, color);
+                // Right circle
+                painter.fill_rectangle({x + 14, y + 11, 4, 1}, color);
+                painter.fill_rectangle({x + 13, y + 12, 6, 3}, color);
+                painter.fill_rectangle({x + 14, y + 15, 4, 1}, color);
+                // Connect circles
+                painter.fill_rectangle({x + 6, y + 13, 9, 2}, color);
+                // Stem
+                painter.fill_rectangle({x + 9, y + 16, 3, 4}, color);
+                painter.fill_rectangle({x + 8, y + 19, 5, 1}, color);
+                painter.fill_rectangle({x + 7, y + 20, 7, 1}, color);
+                painter.fill_rectangle({x + 6, y + 21, 9, 1}, color);
+                break;
+        }
+    } else {
+        // Small suit symbols
+        switch (suit) {
+            case 0:  // Spades - small
+                painter.fill_rectangle({x + 2, y + 1, 3, 3}, color);
+                painter.fill_rectangle({x + 1, y + 3, 5, 2}, color);
+                painter.fill_rectangle({x + 3, y + 5, 1, 2}, color);
+                break;
+
+            case 1:  // Hearts - small
+                painter.fill_rectangle({x + 1, y + 1, 2, 2}, color);
+                painter.fill_rectangle({x + 4, y + 1, 2, 2}, color);
+                painter.fill_rectangle({x + 1, y + 2, 5, 2}, color);
+                painter.fill_rectangle({x + 2, y + 4, 3, 1}, color);
+                painter.fill_rectangle({x + 3, y + 5, 1, 1}, color);
+                break;
+
+            case 2:  // Diamonds - small
+                painter.fill_rectangle({x + 3, y + 1, 1, 1}, color);
+                painter.fill_rectangle({x + 2, y + 2, 3, 1}, color);
+                painter.fill_rectangle({x + 1, y + 3, 5, 1}, color);
+                painter.fill_rectangle({x + 2, y + 4, 3, 1}, color);
+                painter.fill_rectangle({x + 3, y + 5, 1, 1}, color);
+                break;
+
+            case 3:  // Clubs - small
+                painter.fill_rectangle({x + 3, y + 1, 2, 2}, color);
+                painter.fill_rectangle({x + 1, y + 3, 2, 2}, color);
+                painter.fill_rectangle({x + 4, y + 3, 2, 2}, color);
+                painter.fill_rectangle({x + 3, y + 5, 2, 2}, color);
+                break;
+        }
+    }
+}
+
+void BlackjackView::draw_card(int x, int y, uint8_t card, bool hidden) {
+    const int width = 60;
+    const int height = 80;
+
+    // Draw card background
+    painter.fill_rectangle({x, y, width, height}, Color::white());
+    painter.draw_rectangle({x, y, width, height}, Color::black());
+    painter.draw_rectangle({x + 1, y + 1, width - 2, height - 2}, Color::grey());  // Inner border
+
+    if (hidden) {
+        // Draw card back pattern - diagonal lines
+        for (int i = 4; i < width - 4; i += 6) {
+            for (int j = 4; j < height - 4; j += 6) {
+                painter.fill_rectangle({x + i, y + j, 3, 3}, Color::blue());
+                painter.fill_rectangle({x + i + 3, y + j + 3, 3, 3}, Color::red());
+            }
+        }
+    } else {
+        // Draw card value
+        uint8_t suit = get_card_suit(card);
+        Color suit_color = (suit == 1 || suit == 2) ? Color::red() : Color::black();
+
+        const auto* base_style = ui::Theme::getInstance()->fg_light;
+        Style card_style{
+            .font = base_style->font,
+            .background = Color::white(),
+            .foreground = suit_color};
+
+        std::string value_str = get_card_string(card);
+
+        // Draw value in top-left corner
+        painter.draw_string({x + 4, y + 4}, card_style, value_str);
+
+        // Draw small suit symbol next to value
+        int suit_x = (value_str == "10") ? x + 20 : x + 12;
+        draw_suit_symbol(suit_x, y + 4, suit, suit_color, false);
+
+        // Draw value in bottom-right corner
+        int bottom_x = (value_str == "10") ? x + width - 24 : x + width - 16;
+        painter.draw_string({bottom_x, y + height - 18}, card_style, value_str);
+
+        // Draw small suit symbol in bottom-right
+        draw_suit_symbol(x + width - 10, y + height - 16, suit, suit_color, false);
+
+        // Draw large suit symbol in center
+        draw_suit_symbol(x + 20, y + 28, suit, suit_color, true);
+    }
+}
+
+void BlackjackView::draw_hand(int x, int y, uint8_t* cards, uint8_t count, bool is_dealer) {
+    // Calculate total width needed
+    const int card_width = 60;
+    const int overlap = 40;         // Amount of overlap when cards need to fit
+    const int max_width = 230 - x;  // Available width on screen
+
+    int spacing;
+    if (count == 1) {
+        spacing = 0;
+    } else if (count == 2) {
+        spacing = card_width + 5;  // Small gap for 2 cards
+    } else {
+        // Calculate spacing to fit all cards
+        int total_overlap_width = card_width + (count - 1) * overlap;
+        if (total_overlap_width <= max_width) {
+            spacing = overlap;
+        } else {
+            // Need more overlap to fit
+            spacing = (max_width - card_width) / (count - 1);
+        }
+    }
+
+    for (uint8_t i = 0; i < count; i++) {
+        bool hide = is_dealer && dealer_hidden && i == 1;
+        int card_x = x + (i * spacing);
+        draw_card(card_x, y, cards[i], hide);
+    }
+}
+
+bool BlackjackView::on_key(const KeyEvent key) {
+    if (key == KeyEvent::Select) {
+        switch (game_state) {
+            case GameState::MENU:
+                if (cash < 10) {
+                    cash = 100;  // Reset if broke - maybe should provide https://gamblersanonymous.org/ link if they also lost their wife and house
+                    wins = 0;
+                    losses = 0;
+                }
+                game_state = GameState::BETTING;
+                break;
+
+            case GameState::BETTING:
+                deal_cards();
+                break;
+
+            case GameState::PLAYING:
+                player_hit();
+                break;
+
+            case GameState::GAME_OVER:
+                // Deal new hand with current bet
+                if (cash >= bet) {
+                    deal_cards();
+                } else if (cash >= 10) {
+                    // Not enough for current bet, reduce to what they can afford
+                    bet = 10;
+                    deal_cards();
+                } else {
+                    // Broke, reset game
+                    cash = 100;
+                    wins = 0;
+                    losses = 0;
+                    game_state = GameState::MENU;
+                    draw_menu_static();
+                }
+                break;
+
+            case GameState::STATS:
+                game_state = GameState::MENU;
+                draw_menu_static();
+                break;
+
+            default:
+                break;
+        }
+        return true;
+    } else if (key == KeyEvent::Left) {
+        if (game_state == GameState::MENU) {
+            game_state = GameState::STATS;
+        }
+        return true;
+    } else if (key == KeyEvent::Right) {
+        if (game_state == GameState::MENU) {
+            nav_.pop();
+            return true;
+        } else if (game_state == GameState::PLAYING) {
+            player_stay();
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool BlackjackView::on_encoder(const EncoderEvent delta) {
+    if (game_state == GameState::BETTING || game_state == GameState::GAME_OVER) {
+        if (delta > 0 && bet + 10 <= cash) {
+            bet += 10;
+        } else if (delta < 0 && bet >= 20) {
+            bet -= 10;
+        }
+        return true;
+    }
+
+    return false;
+}
+
+}  // namespace ui::external_app::blackjack

firmware/application/external/blackjack/ui_blackjack.hpp

@@ -0,0 +1,156 @@
+/*
+ * Blackjack Game for Portapack Mayhem
+ * Ported / Enhanced / Graphically made awesome by RocketGod (https://betaskynet.com)
+ * Based on BlackJack 83 for TI Calculator by Harper Maddox (was written in Assembly)
+ */
+
+#ifndef __UI_BLACKJACK_H__
+#define __UI_BLACKJACK_H__
+
+#include "ui.hpp"
+#include "ui_navigation.hpp"
+#include "event_m0.hpp"
+#include "message.hpp"
+#include "irq_controls.hpp"
+#include "random.hpp"
+#include "lpc43xx_cpp.hpp"
+#include "ui_widget.hpp"
+#include "app_settings.hpp"
+#include <string>
+#include <vector>
+
+namespace ui::external_app::blackjack {
+
+// Game states
+enum class GameState {
+    MENU,
+    BETTING,
+    PLAYING,
+    DEALER_TURN,
+    GAME_OVER,
+    STATS
+};
+
+// Card structure
+struct Card {
+    uint8_t value;  // 1-13 (Ace=1, Jack=11, Queen=12, King=13)
+    uint8_t suit;   // 0=Spades, 1=Hearts, 2=Diamonds, 3=Clubs
+
+    Card()
+        : value(0), suit(0) {}
+    Card(uint8_t v, uint8_t s)
+        : value(v), suit(s) {}
+};
+
+// Timer class
+using Callback = void (*)(void);
+
+class Ticker {
+   public:
+    Ticker() = default;
+    void attach(Callback func, double delay_sec);
+    void detach();
+};
+
+// Function declarations
+void check_game_timer();
+void game_timer_check();
+
+class BlackjackView : public View {
+   public:
+    BlackjackView(NavigationView& nav);
+    ~BlackjackView();
+
+    void on_show() override;
+    std::string title() const override { return "Blackjack"; }
+    void focus() override { dummy.focus(); }
+    void paint(Painter& painter) override;
+    void frame_sync();
+    bool on_encoder(const EncoderEvent event) override;
+    bool on_key(KeyEvent key) override;
+
+    // Public for timer callback
+    GameState game_state = GameState::MENU;
+    void update_game();
+
+   private:
+    NavigationView& nav_;
+    bool initialized = false;
+
+    // Game variables
+    static constexpr uint8_t MAX_CARDS_IN_HAND = 11;  // Maximum possible cards before bust
+    uint8_t deck[52];
+    uint8_t deck_position = 0;
+
+    uint8_t player_cards[MAX_CARDS_IN_HAND];
+    uint8_t player_card_count = 0;
+
+    uint8_t dealer_cards[MAX_CARDS_IN_HAND];
+    uint8_t dealer_card_count = 0;
+
+    // Game state variables
+    uint32_t cash = 100;
+    uint32_t bet = 10;
+    uint32_t wins = 0;
+    uint32_t losses = 0;
+    uint32_t high_score = 100;
+    bool dealer_hidden = true;
+
+    // UI state
+    uint8_t menu_selection = 0;
+    bool blink_state = true;
+    uint32_t blink_counter = 0;
+    uint32_t dealer_timer = 0;
+
+    // Timer
+    Ticker game_timer;
+
+    // Methods
+    void init_deck();
+    void shuffle_deck();
+    uint8_t draw_card();
+    void deal_cards();
+    int calculate_hand_value(uint8_t* cards, uint8_t count);
+    int get_card_value(uint8_t card);
+    uint8_t get_card_suit(uint8_t card);
+    std::string get_card_string(uint8_t card);
+    void player_hit();
+    void player_stay();
+    void dealer_turn();
+    void check_game_over();
+    void reset_game();
+
+    // Drawing methods
+    void draw_menu();
+    void draw_menu_static();
+    void draw_stats();
+    void draw_game();
+    void draw_betting();
+    void draw_card(int x, int y, uint8_t card, bool hidden = false);
+    void draw_hand(int x, int y, uint8_t* cards, uint8_t count, bool is_dealer = false);
+    void draw_suit_symbol(int x, int y, uint8_t suit, Color color, bool large);
+    void clear_screen();
+
+    // Settings
+    app_settings::SettingsManager settings_{
+        "blackjack",
+        app_settings::Mode::NO_RF,
+        {{"cash"sv, &cash},
+         {"wins"sv, &wins},
+         {"losses"sv, &losses},
+         {"highscore"sv, &high_score}}};
+
+    Button dummy{
+        {240, 0, 0, 0},
+        ""};
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) {
+            this->frame_sync();
+        }};
+};
+
+}  // namespace ui::external_app::blackjack
+
+#endif /* __UI_BLACKJACK_H__ */

firmware/application/external/dinogame/main.cpp

@@ -4,9 +4,7 @@
  * |  Find me at https://betaskynet.com                       |
  * |  Argh matey!                                             |
  * ------------------------------------------------------------
- */
-
-/*
+ *
  * Chrome Dino Game for Portapack Mayhem
  * Based on the original DinoGame by various contributors
  */
@@ -32,38 +30,23 @@ __attribute__((section(".external_app.app_dinogame.application_information"), us
 
     "Dino Game",
     {
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0xF0,
-        0xF8,
-        0xFC,
-        0xFE,
-        0xFF,
-        0xFF,
-        0x7F,
-        0x7F,
-        0x3F,
-        0x3F,
-        0x3E,
-        0x3C,
-        0x38,
-        0x30,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
-        0x00,
+        // Cactus icon 16x16
+        0x00, 0x00,  // ................
+        0x80, 0x01,  // .......##.......
+        0x80, 0x01,  // .......##.......
+        0x80, 0x01,  // .......##.......
+        0x98, 0x19,  // ...##..##..##...
+        0x98, 0x19,  // ...##..##..##...
+        0x98, 0x19,  // ...##..##..##...
+        0x98, 0x19,  // ...##..##..##...
+        0xF8, 0x1F,  // ...##########...
+        0xF0, 0x0F,  // ....########....
+        0x80, 0x01,  // .......##.......
+        0x80, 0x01,  // .......##.......
+        0x80, 0x01,  // .......##.......
+        0x80, 0x01,  // .......##.......
+        0x80, 0x01,  // .......##.......
+        0x00, 0x00,  // ................
     },
     ui::Color::green().v,
     app_location_t::GAMES,
@@ -72,4 +55,4 @@ __attribute__((section(".external_app.app_dinogame.application_information"), us
     {0, 0, 0, 0},
     0x00000000,
 };
-}
+}

firmware/application/external/epirb_rx/main.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2024 EPIRB Decoder Implementation
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ui_epirb_rx.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::epirb_rx {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<EPIRBAppView>();
+}
+}  // namespace ui::external_app::epirb_rx
+
+extern "C" {
+
+__attribute__((section(".external_app.app_epirb_rx.application_information"), used)) application_information_t _application_information_epirb_rx = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::epirb_rx::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "EPIRB RX",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+        0x7C,
+        0x3E,
+        0xFE,
+        0x7F,
+        0xFF,
+        0xFF,
+        0xF7,
+        0xEF,
+        0xE3,
+        0xC7,
+        0xE3,
+        0xC7,
+        0xE3,
+        0xC7,
+        0xE3,
+        0xC7,
+        0xF7,
+        0xEF,
+        0xFF,
+        0xFF,
+        0xFE,
+        0x7F,
+        0x7C,
+        0x3E,
+        0x00,
+        0x00,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::red().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_epirb_rx */ {'P', 'E', 'P', 'I'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/epirb_rx/ui_epirb_rx.cpp

@@ -0,0 +1,707 @@
+/*
+ * Copyright (C) 2024 EPIRB Decoder Implementation
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "baseband_api.hpp"
+#include "portapack_persistent_memory.hpp"
+#include "file_path.hpp"
+
+#include "ui_epirb_rx.hpp"
+
+using namespace portapack;
+
+#include "rtc_time.hpp"
+#include "string_format.hpp"
+#include "ui.hpp"
+
+#include "message.hpp"
+
+namespace ui::external_app::epirb_rx {
+
+EPIRBBeacon EPIRBDecoder::decode_packet(const baseband::Packet& packet) {
+    EPIRBBeacon beacon;
+
+    if (packet.size() < 112) {
+        return beacon;  // Invalid packet
+    }
+
+    // Convert packet bits to byte array for easier processing
+    std::array<uint8_t, 16> data{};
+    for (size_t i = 0; i < std::min(packet.size() / 8, data.size()); i++) {
+        uint8_t byte_val = 0;
+        for (int bit = 0; bit < 8 && (i * 8 + bit) < packet.size(); bit++) {
+            if (packet[i * 8 + bit]) {
+                byte_val |= (1 << (7 - bit));
+            }
+        }
+        data[i] = byte_val;
+    }
+
+    // Perform BCH error detection and correction
+    uint8_t error_count = 0;
+    beacon.packet_status = perform_bch_check(data, error_count);
+    beacon.error_count = error_count;
+
+    // Extract beacon ID (bits 26-85, 15 hex digits)
+    beacon.beacon_id = 0;
+    for (int i = 3; i < 11; i++) {
+        beacon.beacon_id = (beacon.beacon_id << 8) | data[i];
+    }
+
+    // Extract beacon type (bits 86-88)
+    uint8_t type_bits = (data[10] >> 5) & 0x07;
+    beacon.beacon_type = decode_beacon_type(type_bits);
+
+    // Extract emergency type (bits 91-94 for some beacon types)
+    uint8_t emergency_bits = (data[11] >> 4) & 0x0F;
+    beacon.emergency_type = decode_emergency_type(emergency_bits);
+
+    // Extract location if encoded (depends on beacon type and protocol)
+    beacon.location = decode_location(data);
+
+    // Extract country code (bits 1-10)
+    beacon.country_code = decode_country_code(data);
+
+    // Set timestamp
+    rtc::RTC datetime;
+    rtcGetTime(&RTCD1, &datetime);
+    beacon.timestamp = datetime;
+
+    return beacon;
+}
+
+EPIRBLocation EPIRBDecoder::decode_location(const std::array<uint8_t, 16>& data) {
+    // EPIRB location encoding varies by protocol version
+    // This is a simplified decoder for the most common format
+
+    // Check for location data presence (bit patterns vary)
+    if ((data[12] & 0x80) == 0) {
+        return EPIRBLocation();  // No location data
+    }
+
+    // Extract latitude (simplified - actual encoding is more complex)
+    int32_t lat_raw = ((data[12] & 0x7F) << 10) | (data[13] << 2) | ((data[14] >> 6) & 0x03);
+    if (lat_raw & 0x10000) lat_raw |= 0xFFFE0000;  // Sign extend
+    float latitude = lat_raw * (180.0f / 131072.0f);
+
+    // Extract longitude (simplified - actual encoding is more complex)
+    int32_t lon_raw = ((data[14] & 0x3F) << 12) | (data[15] << 4) | ((data[0] >> 4) & 0x0F);
+    if (lon_raw & 0x20000) lon_raw |= 0xFFFC0000;  // Sign extend
+    float longitude = lon_raw * (360.0f / 262144.0f);
+
+    // Validate coordinates
+    if (latitude < -90.0f || latitude > 90.0f || longitude < -180.0f || longitude > 180.0f) {
+        return EPIRBLocation();  // Invalid coordinates
+    }
+
+    return EPIRBLocation(latitude, longitude);
+}
+
+BeaconType EPIRBDecoder::decode_beacon_type(uint8_t type_bits) {
+    switch (type_bits) {
+        case 0:
+            return BeaconType::OrbitingLocationBeacon;
+        case 1:
+            return BeaconType::PersonalLocatorBeacon;
+        case 2:
+            return BeaconType::EmergencyLocatorTransmitter;
+        case 3:
+            return BeaconType::SerialELT;
+        case 4:
+            return BeaconType::NationalELT;
+        default:
+            return BeaconType::Other;
+    }
+}
+
+EmergencyType EPIRBDecoder::decode_emergency_type(uint8_t emergency_bits) {
+    switch (emergency_bits) {
+        case 0:
+            return EmergencyType::Fire;
+        case 1:
+            return EmergencyType::Flooding;
+        case 2:
+            return EmergencyType::Collision;
+        case 3:
+            return EmergencyType::Grounding;
+        case 4:
+            return EmergencyType::Sinking;
+        case 5:
+            return EmergencyType::Disabled;
+        case 6:
+            return EmergencyType::Abandoning;
+        case 7:
+            return EmergencyType::Piracy;
+        case 8:
+            return EmergencyType::Man_Overboard;
+        default:
+            return EmergencyType::Other;
+    }
+}
+
+uint32_t EPIRBDecoder::decode_country_code(const std::array<uint8_t, 16>& data) {
+    // Country code is in bits 1-10 (ITU country code)
+    return ((data[0] & 0x03) << 8) | data[1];
+}
+
+std::string EPIRBDecoder::decode_vessel_name(const std::array<uint8_t, 16>& /* data */) {
+    // Vessel name extraction depends on beacon type and protocol
+    // This is a placeholder - actual implementation would be more complex
+    return "";
+}
+
+PacketStatus EPIRBDecoder::perform_bch_check(std::array<uint8_t, 16>& data, uint8_t& error_count) {
+    // Make a copy to detect changes
+    std::array<uint8_t, 16> original_data = data;
+
+    // Calculate BCH syndrome
+    uint32_t syndrome = calculate_bch_syndrome(data);
+
+    if (syndrome == 0) {
+        // No errors detected
+        error_count = 0;
+        return PacketStatus::Valid;
+    }
+
+    // Try to correct single-bit error
+    if (correct_single_error(data, syndrome)) {
+        // Successfully corrected
+        error_count = count_bit_errors(original_data, data);
+        return PacketStatus::Corrected;
+    }
+
+    // Multiple errors or uncorrectable
+    error_count = 255;  // Indicate unknown error count
+    return PacketStatus::Error;
+}
+
+uint32_t EPIRBDecoder::calculate_bch_syndrome(const std::array<uint8_t, 16>& data) {
+    // BCH(127,92,5) polynomial for EPIRB: x^35 + x^2 + x + 1
+    // This is a simplified implementation - actual EPIRB uses BCH(63,21,6)
+    uint32_t syndrome = 0;
+    uint32_t polynomial = 0x80000007;  // x^31 + x^2 + x + 1 (simplified)
+
+    // Process each byte of the data
+    for (int i = 0; i < 14; i++) {  // Only data bits, not parity
+        uint32_t byte_val = data[i];
+        for (int bit = 7; bit >= 0; bit--) {
+            syndrome <<= 1;
+            if (byte_val & (1 << bit)) {
+                syndrome |= 1;
+            }
+
+            // XOR with polynomial if MSB is set
+            if (syndrome & 0x80000000) {
+                syndrome ^= polynomial;
+            }
+        }
+    }
+
+    // XOR with parity bits
+    syndrome ^= (data[14] << 8) | data[15];
+
+    return syndrome & 0xFFFF;  // 16-bit syndrome
+}
+
+bool EPIRBDecoder::correct_single_error(std::array<uint8_t, 16>& data, uint32_t syndrome) {
+    // Simplified single-error correction
+    // This is a basic implementation - real BCH correction is more complex
+
+    if (syndrome == 0) return true;  // No error
+
+    // Look up table for single-bit error patterns (simplified)
+    // In a real implementation, this would be a proper BCH syndrome table
+    for (int byte_idx = 0; byte_idx < 14; byte_idx++) {
+        for (int bit_idx = 0; bit_idx < 8; bit_idx++) {
+            // Create test error pattern
+            std::array<uint8_t, 16> test_data = data;
+            test_data[byte_idx] ^= (1 << bit_idx);
+
+            // Check if this correction produces zero syndrome
+            if (calculate_bch_syndrome(test_data) == 0) {
+                // Found the error location, apply correction
+                data[byte_idx] ^= (1 << bit_idx);
+                return true;
+            }
+        }
+    }
+
+    return false;  // Could not correct
+}
+
+uint8_t EPIRBDecoder::count_bit_errors(const std::array<uint8_t, 16>& original, const std::array<uint8_t, 16>& corrected) {
+    uint8_t count = 0;
+    for (size_t i = 0; i < 16; i++) {
+        uint8_t diff = original[i] ^ corrected[i];
+        // Count set bits in diff
+        while (diff) {
+            count += diff & 1;
+            diff >>= 1;
+        }
+    }
+    return count;
+}
+
+void EPIRBLogger::on_packet(const EPIRBBeacon& beacon) {
+    std::string entry = "EPIRB," +
+                        to_string_dec_uint(beacon.beacon_id, 15, '0') + "," +
+                        to_string_dec_uint(static_cast<uint8_t>(beacon.beacon_type)) + "," +
+                        to_string_dec_uint(static_cast<uint8_t>(beacon.emergency_type)) + ",";
+
+    if (beacon.location.valid) {
+        entry += to_string_decimal(beacon.location.latitude, 6) + "," +
+                 to_string_decimal(beacon.location.longitude, 6);
+    } else {
+        entry += ",";
+    }
+
+    entry += "," + to_string_dec_uint(beacon.country_code) + "," +
+             format_packet_status(beacon.packet_status) + "," +
+             to_string_dec_uint(beacon.error_count) + "\n";
+
+    log_file.write_entry(beacon.timestamp, entry);
+}
+
+std::string format_beacon_type(BeaconType type) {
+    switch (type) {
+        case BeaconType::OrbitingLocationBeacon:
+            return "OLB";
+        case BeaconType::PersonalLocatorBeacon:
+            return "PLB";
+        case BeaconType::EmergencyLocatorTransmitter:
+            return "ELT";
+        case BeaconType::SerialELT:
+            return "S-ELT";
+        case BeaconType::NationalELT:
+            return "N-ELT";
+        default:
+            return "Other";
+    }
+}
+
+std::string format_emergency_type(EmergencyType type) {
+    switch (type) {
+        case EmergencyType::Fire:
+            return "Fire";
+        case EmergencyType::Flooding:
+            return "Flooding";
+        case EmergencyType::Collision:
+            return "Collision";
+        case EmergencyType::Grounding:
+            return "Grounding";
+        case EmergencyType::Sinking:
+            return "Sinking";
+        case EmergencyType::Disabled:
+            return "Disabled";
+        case EmergencyType::Abandoning:
+            return "Abandoning";
+        case EmergencyType::Piracy:
+            return "Piracy";
+        case EmergencyType::Man_Overboard:
+            return "MOB";
+        default:
+            return "Other";
+    }
+}
+
+std::string format_packet_status(PacketStatus status) {
+    switch (status) {
+        case PacketStatus::Valid:
+            return "OK";
+        case PacketStatus::Corrected:
+            return "CORR";
+        case PacketStatus::Error:
+            return "ERR";
+        default:
+            return "UNK";
+    }
+}
+
+ui::Color get_packet_status_color(PacketStatus status) {
+    switch (status) {
+        case PacketStatus::Valid:
+            return ui::Color::green();
+        case PacketStatus::Corrected:
+            return ui::Color::yellow();
+        case PacketStatus::Error:
+            return ui::Color::red();
+        default:
+            return ui::Color::white();
+    }
+}
+
+EPIRBBeaconDetailView::EPIRBBeaconDetailView(ui::NavigationView& nav) {
+    add_children({&button_done,
+                  &button_see_map});
+
+    button_done.on_select = [this](Button&) {
+        if (on_close) on_close();
+    };
+
+    button_see_map.on_select = [this, &nav](Button&) {
+        if (beacon_.location.valid) {
+            nav.push<GeoMapView>(
+                to_string_hex(beacon_.beacon_id, 8),  // tag as string
+                0,                                    // altitude
+                GeoPos::alt_unit::METERS,
+                GeoPos::spd_unit::NONE,
+                beacon_.location.latitude,
+                beacon_.location.longitude,
+                0,  // angle
+                [this]() {
+                    if (on_close) on_close();
+                });
+        }
+    };
+}
+
+void EPIRBBeaconDetailView::set_beacon(const EPIRBBeacon& beacon) {
+    beacon_ = beacon;
+    set_dirty();
+}
+
+void EPIRBBeaconDetailView::focus() {
+    button_see_map.focus();
+}
+
+void EPIRBBeaconDetailView::paint(ui::Painter& painter) {
+    View::paint(painter);
+
+    const auto rect = screen_rect();
+    const auto s = style();
+
+    auto draw_cursor = rect.location();
+    draw_cursor += {8, 8};
+
+    draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                             "Beacon ID", to_string_hex(beacon_.beacon_id, 15))
+                      .location();
+
+    draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                             "Type", format_beacon_type(beacon_.beacon_type))
+                      .location();
+
+    draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                             "Emergency", format_emergency_type(beacon_.emergency_type))
+                      .location();
+
+    if (beacon_.location.valid) {
+        draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                                 "Latitude", to_string_decimal(beacon_.location.latitude, 6) + "°")
+                          .location();
+
+        draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                                 "Longitude", to_string_decimal(beacon_.location.longitude, 6) + "°")
+                          .location();
+    } else {
+        draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                                 "Location", "Unknown")
+                          .location();
+    }
+
+    draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                             "Country", to_string_dec_uint(beacon_.country_code))
+                      .location();
+
+    draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                             "Time", to_string_datetime(beacon_.timestamp, HMS))
+                      .location();
+
+    // Show packet status with appropriate color
+    std::string status_text = format_packet_status(beacon_.packet_status);
+    if (beacon_.error_count > 0 && beacon_.packet_status == PacketStatus::Corrected) {
+        status_text += " (" + to_string_dec_uint(beacon_.error_count) + " err)";
+    }
+    draw_cursor = draw_field(painter, {draw_cursor, {200, 16}}, s,
+                             "Status", status_text)
+                      .location();
+}
+
+ui::Rect EPIRBBeaconDetailView::draw_field(
+    ui::Painter& painter,
+    const ui::Rect& draw_rect,
+    const ui::Style& style,
+    const std::string& label,
+    const std::string& value) {
+    const auto label_width = 8 * 8;
+
+    painter.draw_string({draw_rect.location()}, style, label + ":");
+    painter.draw_string({draw_rect.location() + ui::Point{label_width, 0}}, style, value);
+
+    return {draw_rect.location() + ui::Point{0, draw_rect.height()}, draw_rect.size()};
+}
+
+EPIRBAppView::EPIRBAppView(ui::NavigationView& nav)
+    : nav_(nav) {
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
+
+    add_children({&label_frequency,
+                  &options_frequency,
+                  &field_rf_amp,
+                  &field_lna,
+                  &field_vga,
+                  &rssi,
+                  &field_volume,
+                  &channel,
+                  &label_status,
+                  &label_beacons_count,
+                  &label_latest,
+                  &text_latest_info,
+                  &label_packet_stats,
+                  &console,
+                  &button_map,
+                  &button_clear,
+                  &button_log});
+
+    button_map.on_select = [this](Button&) {
+        this->on_show_map();
+    };
+
+    button_clear.on_select = [this](Button&) {
+        this->on_clear_beacons();
+    };
+
+    button_log.on_select = [this](Button&) {
+        this->on_toggle_log();
+    };
+
+    options_frequency.on_change = [this](size_t, ui::OptionsField::value_t v) {
+        receiver_model.set_target_frequency(v);
+    };
+    options_frequency.set_by_value(receiver_model.target_frequency());
+
+    signal_token_tick_second = rtc_time::signal_tick_second += [this]() {
+        this->on_tick_second();
+    };
+
+    // Configure receiver for default EPIRB frequency (406.028 MHz)
+    receiver_model.set_target_frequency(406028000);
+    receiver_model.set_rf_amp(true);
+    receiver_model.set_lna(32);
+    receiver_model.set_vga(32);
+    receiver_model.set_sampling_rate(2457600);
+    receiver_model.enable();
+
+    logger = std::make_unique<EPIRBLogger>();
+    if (logger) {
+        logger->append(logs_dir / "epirb_rx.txt");
+    }
+}
+
+EPIRBAppView::~EPIRBAppView() {
+    rtc_time::signal_tick_second -= signal_token_tick_second;
+
+    receiver_model.disable();
+    baseband::shutdown();
+}
+
+void EPIRBAppView::set_parent_rect(const ui::Rect new_parent_rect) {
+    View::set_parent_rect(new_parent_rect);
+
+    const auto console_rect = ui::Rect{
+        new_parent_rect.left(),
+        new_parent_rect.top() + header_height,
+        new_parent_rect.width(),
+        new_parent_rect.height() - header_height - 32};
+    console.set_parent_rect(console_rect);
+}
+
+void EPIRBAppView::paint(ui::Painter& /* painter */) {
+    // Custom painting if needed
+}
+
+void EPIRBAppView::focus() {
+    options_frequency.focus();
+}
+
+void EPIRBAppView::on_packet(const baseband::Packet& packet) {
+    // Decode the EPIRB packet
+    auto beacon = EPIRBDecoder::decode_packet(packet);
+
+    if (beacon.beacon_id != 0) {  // Valid beacon decoded
+        on_beacon_decoded(beacon);
+    }
+}
+
+void EPIRBAppView::on_beacon_decoded(const EPIRBBeacon& beacon) {
+    beacons_received++;
+
+    // Track packet statistics
+    switch (beacon.packet_status) {
+        case PacketStatus::Valid:
+            packets_valid++;
+            break;
+        case PacketStatus::Corrected:
+            packets_corrected++;
+            break;
+        case PacketStatus::Error:
+            packets_error++;
+            break;
+    }
+
+    recent_beacons.push_back(beacon);
+
+    // Keep only last 50 beacons
+    if (recent_beacons.size() > 50) {
+        recent_beacons.erase(recent_beacons.begin());
+    }
+
+    // Update display
+    update_display();
+
+    // Log the beacon
+    if (logger) {
+        logger->on_packet(beacon);
+    }
+
+    // Display in console with full details and colored status
+    std::string beacon_info = format_beacon_summary(beacon);
+    if (beacon.emergency_type != EmergencyType::Other) {
+        beacon_info += " [" + format_emergency_type(beacon.emergency_type) + "]";
+    }
+
+    // Add colored status indicator
+    std::string status_color;
+    switch (beacon.packet_status) {
+        case PacketStatus::Valid:
+            status_color = STR_COLOR_GREEN;
+            break;
+        case PacketStatus::Corrected:
+            status_color = STR_COLOR_YELLOW;
+            break;
+        case PacketStatus::Error:
+            status_color = STR_COLOR_RED;
+            break;
+        default:
+            status_color = STR_COLOR_WHITE;
+            break;
+    }
+
+    beacon_info += " [" + status_color + format_packet_status(beacon.packet_status) + STR_COLOR_WHITE + "]";
+    if (beacon.error_count > 0 && beacon.packet_status == PacketStatus::Corrected) {
+        beacon_info += " (" + to_string_dec_uint(beacon.error_count) + "e)";
+    }
+
+    console.write(beacon_info + "\n");
+}
+
+void EPIRBAppView::on_show_map() {
+    if (!recent_beacons.empty()) {
+        // Find latest beacon with valid location
+        for (auto it = recent_beacons.rbegin(); it != recent_beacons.rend(); ++it) {
+            if (it->location.valid) {
+                // Create a GeoMapView with all beacon locations
+                auto map_view = nav_.push<ui::GeoMapView>(
+                    "EPIRB",  // tag
+                    0,        // altitude
+                    ui::GeoPos::alt_unit::METERS,
+                    ui::GeoPos::spd_unit::NONE,
+                    it->location.latitude,
+                    it->location.longitude,
+                    0  // angle
+                );
+
+                // Add all beacons with valid locations as markers
+                for (const auto& beacon : recent_beacons) {
+                    if (beacon.location.valid) {
+                        ui::GeoMarker marker;
+                        marker.lat = beacon.location.latitude;
+                        marker.lon = beacon.location.longitude;
+                        marker.angle = 0;
+                        marker.tag = to_string_hex(beacon.beacon_id, 8) + " " +
+                                     format_beacon_type(beacon.beacon_type);
+                        map_view->store_marker(marker);
+                    }
+                }
+                return;
+            }
+        }
+    }
+
+    // No valid location found
+    nav_.display_modal("No Location", "No beacons with valid\nlocation data found.");
+}
+
+void EPIRBAppView::on_clear_beacons() {
+    recent_beacons.clear();
+    beacons_received = 0;
+    packets_valid = 0;
+    packets_corrected = 0;
+    packets_error = 0;
+    console.clear(true);
+    update_display();
+}
+
+void EPIRBAppView::on_toggle_log() {
+    // Toggle logging functionality
+    if (logger) {
+        logger.reset();
+        button_log.set_text("Log");
+    } else {
+        logger = std::make_unique<EPIRBLogger>();
+        logger->append("epirb_rx.txt");
+        button_log.set_text("Stop");
+    }
+}
+
+void EPIRBAppView::on_tick_second() {
+    // Update status display every second
+    rtc::RTC datetime;
+    rtcGetTime(&RTCD1, &datetime);
+
+    label_status.set("Listening... " + to_string_datetime(datetime, HM));
+}
+
+void EPIRBAppView::update_display() {
+    label_beacons_count.set("Beacons: " + to_string_dec_uint(beacons_received));
+
+    // Update packet statistics display
+    std::string stats = std::string("Stats: ") +
+                        STR_COLOR_GREEN + to_string_dec_uint(packets_valid) + "OK " +
+                        STR_COLOR_YELLOW + to_string_dec_uint(packets_corrected) + "CORR " +
+                        STR_COLOR_RED + to_string_dec_uint(packets_error) + "ERR" + STR_COLOR_WHITE;
+    label_packet_stats.set(stats);
+
+    if (!recent_beacons.empty()) {
+        const auto& latest = recent_beacons.back();
+        text_latest_info.set(format_beacon_summary(latest));
+    }
+}
+
+std::string EPIRBAppView::format_beacon_summary(const EPIRBBeacon& beacon) {
+    std::string summary = to_string_hex(beacon.beacon_id, 8) + " " +
+                          format_beacon_type(beacon.beacon_type);
+
+    if (beacon.location.valid) {
+        summary += " " + format_location(beacon.location);
+    }
+
+    // Add status indicator for summary display
+    summary += " " + format_packet_status(beacon.packet_status);
+
+    return summary;
+}
+
+std::string EPIRBAppView::format_location(const EPIRBLocation& location) {
+    return to_string_decimal(location.latitude, 4) + "°," +
+           to_string_decimal(location.longitude, 4) + "°";
+}
+
+}  // namespace ui::external_app::epirb_rx

firmware/application/external/epirb_rx/ui_epirb_rx.hpp

@@ -0,0 +1,297 @@
+/*
+ * Copyright (C) 2024 EPIRB Decoder Implementation
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __UI_EPIRB_RX_H__
+#define __UI_EPIRB_RX_H__
+
+#include "app_settings.hpp"
+#include "radio_state.hpp"
+#include "ui_widget.hpp"
+#include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
+#include "ui_geomap.hpp"
+
+#include "event_m0.hpp"
+#include "signal.hpp"
+#include "message.hpp"
+#include "log_file.hpp"
+
+#include "baseband_packet.hpp"
+
+/* #include <cstdint>
+#include <cstddef>
+#include <string>
+#include <array> */
+
+namespace ui::external_app::epirb_rx {
+
+// EPIRB 406 MHz beacon types
+enum class BeaconType : uint8_t {
+    OrbitingLocationBeacon = 0,
+    PersonalLocatorBeacon = 1,
+    EmergencyLocatorTransmitter = 2,
+    SerialELT = 3,
+    NationalELT = 4,
+    Other = 15
+};
+
+// EPIRB distress and emergency types
+enum class EmergencyType : uint8_t {
+    Fire = 0,
+    Flooding = 1,
+    Collision = 2,
+    Grounding = 3,
+    Sinking = 4,
+    Disabled = 5,
+    Abandoning = 6,
+    Piracy = 7,
+    Man_Overboard = 8,
+    Other = 15
+};
+
+struct EPIRBLocation {
+    float latitude;   // degrees, -90 to +90
+    float longitude;  // degrees, -180 to +180
+    bool valid;
+
+    EPIRBLocation()
+        : latitude(0.0f), longitude(0.0f), valid(false) {}
+    EPIRBLocation(float lat, float lon)
+        : latitude(lat), longitude(lon), valid(true) {}
+};
+
+enum class PacketStatus : uint8_t {
+    Valid = 0,
+    Corrected = 1,
+    Error = 2
+};
+
+struct EPIRBBeacon {
+    uint32_t beacon_id;
+    BeaconType beacon_type;
+    EmergencyType emergency_type;
+    EPIRBLocation location;
+    uint32_t country_code;
+    std::string vessel_name;
+    rtc::RTC timestamp;
+    uint32_t sequence_number;
+    PacketStatus packet_status;
+    uint8_t error_count;
+
+    EPIRBBeacon()
+        : beacon_id(0), beacon_type(BeaconType::Other), emergency_type(EmergencyType::Other), location(), country_code(0), vessel_name(), timestamp(), sequence_number(0), packet_status(PacketStatus::Error), error_count(0) {}
+};
+
+class EPIRBDecoder {
+   public:
+    static EPIRBBeacon decode_packet(const baseband::Packet& packet);
+
+   private:
+    static EPIRBLocation decode_location(const std::array<uint8_t, 16>& data);
+    static BeaconType decode_beacon_type(uint8_t type_bits);
+    static EmergencyType decode_emergency_type(uint8_t emergency_bits);
+    static uint32_t decode_country_code(const std::array<uint8_t, 16>& data);
+    static std::string decode_vessel_name(const std::array<uint8_t, 16>& data);
+
+    // BCH error correction methods
+    static PacketStatus perform_bch_check(std::array<uint8_t, 16>& data, uint8_t& error_count);
+    static uint32_t calculate_bch_syndrome(const std::array<uint8_t, 16>& data);
+    static bool correct_single_error(std::array<uint8_t, 16>& data, uint32_t syndrome);
+    static uint8_t count_bit_errors(const std::array<uint8_t, 16>& original, const std::array<uint8_t, 16>& corrected);
+};
+
+class EPIRBLogger {
+   public:
+    Optional<File::Error> append(const std::filesystem::path& filename) {
+        return log_file.append(filename);
+    }
+
+    void on_packet(const EPIRBBeacon& beacon);
+
+   private:
+    LogFile log_file{};
+};
+
+// Forward declarations of formatting functions
+std::string format_beacon_type(BeaconType type);
+std::string format_emergency_type(EmergencyType type);
+std::string format_packet_status(PacketStatus status);
+ui::Color get_packet_status_color(PacketStatus status);
+
+class EPIRBBeaconDetailView : public ui::View {
+   public:
+    std::function<void(void)> on_close{};
+
+    EPIRBBeaconDetailView(ui::NavigationView& nav);
+    EPIRBBeaconDetailView(const EPIRBBeaconDetailView&) = delete;
+    EPIRBBeaconDetailView& operator=(const EPIRBBeaconDetailView&) = delete;
+
+    void set_beacon(const EPIRBBeacon& beacon);
+    const EPIRBBeacon& beacon() const { return beacon_; }
+
+    void focus() override;
+    void paint(ui::Painter&) override;
+
+    ui::GeoMapView* get_geomap_view() { return geomap_view; }
+
+   private:
+    EPIRBBeacon beacon_{};
+
+    ui::Button button_done{
+        {125, 224, 96, 24},
+        "Done"};
+    ui::Button button_see_map{
+        {19, 224, 96, 24},
+        "See on map"};
+
+    ui::GeoMapView* geomap_view{nullptr};
+
+    ui::Rect draw_field(
+        ui::Painter& painter,
+        const ui::Rect& draw_rect,
+        const ui::Style& style,
+        const std::string& label,
+        const std::string& value);
+};
+
+class EPIRBAppView : public ui::View {
+   public:
+    EPIRBAppView(ui::NavigationView& nav);
+    ~EPIRBAppView();
+
+    void set_parent_rect(const ui::Rect new_parent_rect) override;
+    void paint(ui::Painter&) override;
+    void focus() override;
+
+    std::string title() const override { return "EPIRB RX"; }
+
+   private:
+    app_settings::SettingsManager settings_{
+        "rx_epirb", app_settings::Mode::RX};
+
+    ui::NavigationView& nav_;
+
+    std::vector<EPIRBBeacon> recent_beacons{};
+    std::unique_ptr<EPIRBLogger> logger{};
+
+    EPIRBBeaconDetailView beacon_detail_view{nav_};
+
+    static constexpr auto header_height = 4 * 16;
+
+    ui::Text label_frequency{
+        {0 * 8, 0 * 16, 4 * 8, 1 * 16},
+        "Freq"};
+
+    ui::OptionsField options_frequency{
+        {5 * 8, 0 * 16},
+        7,
+        {
+            {"406.028", 406028000},
+            {"406.025", 406025000},
+            {"406.037", 406037000},
+            {"433.025", 433025000},
+            {"144.875", 144875000},
+        }};
+
+    ui::RFAmpField field_rf_amp{
+        {13 * 8, 0 * 16}};
+
+    ui::LNAGainField field_lna{
+        {15 * 8, 0 * 16}};
+
+    ui::VGAGainField field_vga{
+        {18 * 8, 0 * 16}};
+
+    ui::RSSI rssi{
+        {21 * 8, 0, 6 * 8, 4}};
+
+    ui::AudioVolumeField field_volume{
+        {screen_width - 2 * 8, 0 * 16}};
+
+    ui::Channel channel{
+        {21 * 8, 5, 6 * 8, 4}};
+
+    // Status display
+    ui::Text label_status{
+        {0 * 8, 1 * 16, 15 * 8, 1 * 16},
+        "Listening..."};
+
+    ui::Text label_beacons_count{
+        {16 * 8, 1 * 16, 14 * 8, 1 * 16},
+        "Beacons: 0"};
+
+    ui::Text label_packet_stats{
+        {0 * 8, 3 * 16, 29 * 8, 1 * 16},
+        ""};
+
+    // Latest beacon info display
+    ui::Text label_latest{
+        {0 * 8, 2 * 16, 8 * 8, 1 * 16},
+        "Latest:"};
+
+    ui::Text text_latest_info{
+        {8 * 8, 2 * 16, 22 * 8, 1 * 16},
+        ""};
+
+    // Beacon list
+    ui::Console console{
+        {0, 4 * 16, 240, 152}};
+
+    ui::Button button_map{
+        {0, 224, 60, 24},
+        "Map"};
+
+    ui::Button button_clear{
+        {64, 224, 60, 24},
+        "Clear"};
+
+    ui::Button button_log{
+        {128, 224, 60, 24},
+        "Log"};
+
+    SignalToken signal_token_tick_second{};
+    uint32_t beacons_received = 0;
+    uint32_t packets_valid = 0;
+    uint32_t packets_corrected = 0;
+    uint32_t packets_error = 0;
+
+    MessageHandlerRegistration message_handler_packet{
+        Message::ID::EPIRBPacket,
+        [this](Message* const p) {
+            const auto message = static_cast<const EPIRBPacketMessage*>(p);
+            this->on_packet(message->packet);
+        }};
+
+    void on_packet(const baseband::Packet& packet);
+    void on_beacon_decoded(const EPIRBBeacon& beacon);
+    void on_show_map();
+    void on_clear_beacons();
+    void on_toggle_log();
+    void on_tick_second();
+
+    void update_display();
+    std::string format_beacon_summary(const EPIRBBeacon& beacon);
+    std::string format_location(const EPIRBLocation& location);
+};
+
+}  // namespace ui::external_app::epirb_rx
+
+#endif  // __UI_EPIRB_RX_H__

firmware/application/external/ert/ert_app.cpp

@@ -96,22 +96,7 @@ void ERTRecentEntry::update(const ert::Packet& packet) {
     packet_type = packet.type();
 }
 
-namespace ui {
-
-template <>
-void RecentEntriesTable<ERTRecentEntries>::draw(
-    const Entry& entry,
-    const Rect& target_rect,
-    Painter& painter,
-    const Style& style) {
-    std::string line = ert::format::id(entry.id) + " " + ert::format::commodity_type(entry.commodity_type) + " " + ert::format::consumption(entry.last_consumption) + " ";
-
-    line += (entry.packet_type == ert::Packet::Type::SCM) ? ert::format::tamper_flags_scm(entry.last_tamper_flags) : ert::format::tamper_flags(entry.last_tamper_flags);
-    line += (entry.received_count > 99) ? " ++" : to_string_dec_uint(entry.received_count, 3);
-
-    line.resize(target_rect.width() / 8, ' ');
-    painter.draw_string(target_rect.location(), style, line);
-}
+namespace ui::external_app::ert_app {
 
 ERTAppView::ERTAppView(NavigationView& nav)
     : nav_{nav} {
@@ -182,4 +167,21 @@ void ERTAppView::on_freqchg(int64_t freq) {
     field_frequency.set_value(freq);
 }
 
-} /* namespace ui */
+} /* namespace ui::external_app::ert_app */
+
+namespace ui {
+template <>
+void RecentEntriesTable<ui::external_app::ert_app::ERTRecentEntries>::draw(
+    const Entry& entry,
+    const Rect& target_rect,
+    Painter& painter,
+    const Style& style) {
+    std::string line = ert::format::id(entry.id) + " " + ert::format::commodity_type(entry.commodity_type) + " " + ert::format::consumption(entry.last_consumption) + " ";
+
+    line += (entry.packet_type == ert::Packet::Type::SCM) ? ert::format::tamper_flags_scm(entry.last_tamper_flags) : ert::format::tamper_flags(entry.last_tamper_flags);
+    line += (entry.received_count > 99) ? " ++" : to_string_dec_uint(entry.received_count, 3);
+
+    line.resize(target_rect.width() / 8, ' ');
+    painter.draw_string(target_rect.location(), style, line);
+}
+}  // namespace ui

firmware/application/external/ert/ert_app.hpp

@@ -104,10 +104,9 @@ class ERTLogger {
     LogFile log_file{};
 };
 
+namespace ui::external_app::ert_app {
+
 using ERTRecentEntries = RecentEntries<ERTRecentEntry>;
-
-namespace ui {
-
 using ERTRecentEntriesView = RecentEntriesView<ERTRecentEntries>;
 
 class ERTAppView : public View {
@@ -188,6 +187,6 @@ class ERTAppView : public View {
     void on_show_list();
 };
 
-} /* namespace ui */
+} /* namespace ui::external_app::ert_app */
 
 #endif /*__ERT_APP_H__*/

firmware/application/external/ert/main.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "ert_app.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::ert_app {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<ERTAppView>();
+}
+}  // namespace ui::external_app::ert_app
+
+extern "C" {
+
+__attribute__((section(".external_app.app_ert.application_information"), used)) application_information_t _application_information_ert = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::ert_app::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "ERT Meter",
+    /*.bitmap_data = */ {
+        0x00,
+        0x00,
+        0x00,
+        0x0F,
+        0x80,
+        0x7F,
+        0xC0,
+        0x0F,
+        0xFC,
+        0x0F,
+        0xC2,
+        0x0F,
+        0x82,
+        0x7F,
+        0x01,
+        0x0F,
+        0x01,
+        0x00,
+        0x21,
+        0x05,
+        0x53,
+        0x09,
+        0x56,
+        0x09,
+        0x50,
+        0x05,
+        0x50,
+        0x05,
+        0x20,
+        0xAD,
+        0x00,
+        0x00,
+    },
+    /*.icon_color = */ ui::Color::green().v,
+    /*.menu_location = */ app_location_t::RX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_none */ {'P', 'E', 'R', 'T'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/external.cmake

@@ -110,12 +110,13 @@ set(EXTCPPSRC
 	#wefax_rx
 	external/wefax_rx/main.cpp
 	external/wefax_rx/ui_wefax_rx.cpp
-	
+
+
 	#noaaapt_rx
 	external/noaaapt_rx/main.cpp
 	external/noaaapt_rx/ui_noaaapt_rx.cpp
-		
-	
+
+
 
 	#shoppingcart_lock
 	external/shoppingcart_lock/main.cpp
@@ -215,11 +216,35 @@ set(EXTCPPSRC
 
 	#gfxEQ
 	external/gfxeq/main.cpp
-	external/gfxeq/ui_gfxeq.cpp	
+	external/gfxeq/ui_gfxeq.cpp
 
 	#detector_rx
 	external/detector_rx/main.cpp
-	external/detector_rx/ui_detector_rx.cpp		
+	external/detector_rx/ui_detector_rx.cpp
+
+	#space_invaders
+	external/spaceinv/main.cpp
+	external/spaceinv/ui_spaceinv.cpp
+
+	#blackjack
+	external/blackjack/main.cpp
+	external/blackjack/ui_blackjack.cpp
+
+	#battleship
+	external/battleship/main.cpp
+	external/battleship/ui_battleship.cpp
+
+	#ert
+	external/ert/main.cpp
+	external/ert/ert_app.cpp
+
+	#epirb_rx
+	external/epirb_rx/main.cpp
+	external/epirb_rx/ui_epirb_rx.cpp
+
+	#soundboard
+	external/soundboard/main.cpp
+	external/soundboard/soundboard_app.cpp
 )
 
 set(EXTAPPLIST
@@ -248,7 +273,7 @@ set(EXTAPPLIST
 	morse_tx
 	sstvtx
 	random_password
-	#acars_rx
+	# acars_rx
 	ookbrute
 	ook_editor
 	wefax_rx
@@ -276,4 +301,10 @@ set(EXTAPPLIST
 	level
 	gfxeq
 	detector_rx
+	spaceinv
+	blackjack
+	battleship
+	ert
+	epirb_rx
+	soundboard
 )

firmware/application/external/external.ld

@@ -76,6 +76,13 @@ MEMORY
     ram_external_app_noaaapt_rx   (rwx) : org = 0xADE30000, len = 32k
     ram_external_app_detector_rx   (rwx) : org = 0xADE40000, len = 32k
     ram_external_app_dinogame   (rwx) : org = 0xADE50000, len = 32k
+    ram_external_app_spaceinv   (rwx) : org = 0xADE60000, len = 32k
+    ram_external_app_blackjack  (rwx) : org = 0xADE70000, len = 32k
+    ram_external_app_battleship   (rwx) : org = 0xADE80000, len = 32k
+    ram_external_app_ert        (rwx) : org = 0xADE90000, len = 32k
+    ram_external_app_epirb_rx   (rwx) : org = 0xADEA0000, len = 32k
+    ram_external_app_soundboard   (rwx) : org = 0xADEB0000, len = 32k
+
 }
 
 SECTIONS
@@ -337,7 +344,7 @@ SECTIONS
         KEEP(*(.external_app.app_stopwatch.application_information));
         *(*ui*external_app*stopwatch*);
     } > ram_external_app_stopwatch
-    
+
    .external_app_wefax_rx : ALIGN(4) SUBALIGN(4)
     {
         KEEP(*(.external_app.app_wefax_rx.application_information));
@@ -360,19 +367,19 @@ SECTIONS
     {
         KEEP(*(.external_app.app_doom.application_information));
         *(*ui*external_app*doom*);
-    } > ram_external_app_doom    
-    
+    } > ram_external_app_doom
+
     .external_app_debug_pmem : ALIGN(4) SUBALIGN(4)
     {
         KEEP(*(.external_app.app_debug_pmem.application_information));
         *(*ui*external_app*debug_pmem*);
-    } > ram_external_app_debug_pmem    
+    } > ram_external_app_debug_pmem
 
     .external_app_scanner : ALIGN(4) SUBALIGN(4)
     {
         KEEP(*(.external_app.app_scanner.application_information));
         *(*ui*external_app*scanner*);
-    } > ram_external_app_scanner    
+    } > ram_external_app_scanner
 
     .external_app_level : ALIGN(4) SUBALIGN(4)
     {
@@ -398,5 +405,41 @@ SECTIONS
         *(*ui*external_app*dinogame*);
     } > ram_external_app_dinogame
 
+    .external_app_spaceinv : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_spaceinv.application_information));
+        *(*ui*external_app*spaceinv*);
+    } > ram_external_app_spaceinv
+
+    .external_app_blackjack : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_blackjack.application_information));
+        *(*ui*external_app*blackjack*);
+    } > ram_external_app_blackjack
+
+    .external_app_battleship : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_battleship.application_information));
+        *(*ui*external_app*battleship*);
+    } > ram_external_app_battleship
+
+    .external_app_ert : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_ert.application_information));
+        *(*ui*external_app*ert*);
+    } > ram_external_app_ert
+
+    .external_app_epirb_rx : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_epirb_rx.application_information));
+        *(*ui*external_app*epirb_rx*);
+    } > ram_external_app_epirb_rx
+
+    .external_app_soundboard : ALIGN(4) SUBALIGN(4)
+    {
+        KEEP(*(.external_app.app_soundboard.application_information));
+        *(*ui*external_app*soundboard*);
+    } > ram_external_app_soundboard
+
 }
 

firmware/application/external/jammer/ui_jammer.cpp

@@ -274,7 +274,7 @@ bool JammerView::update_config() {
         return true;
     } else {
         if (out_of_ranges)
-            nav_.display_modal("Error", "Jamming bandwidth too large.\nMust be less than 24MHz.");
+            nav_.display_modal("Error", "Jamming bandwidth too large.\nMust be 80MHz or less.");
         else
             nav_.display_modal("Error", "No range enabled.");
         return false;

firmware/application/external/shoppingcart_lock/main.cpp

@@ -10,7 +10,7 @@
 
 namespace ui::external_app::shoppingcart_lock {
 void initialize_app(NavigationView& nav) {
-    baseband::run_image(portapack::spi_flash::image_tag_audio_tx);
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
     nav.push<ShoppingCartLock>();
 }
 }  // namespace ui::external_app::shoppingcart_lock

firmware/application/external/soundboard/main.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2023 Bernd Herzog
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui.hpp"
+#include "soundboard_app.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::soundboard {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SoundBoardView>();
+}
+}  // namespace ui::external_app::soundboard
+
+extern "C" {
+
+__attribute__((section(".external_app.app_soundboard.application_information"), used)) application_information_t _application_information_soundboard = {
+    /*.memory_location = */ (uint8_t*)0x00000000,
+    /*.externalAppEntry = */ ui::external_app::soundboard::initialize_app,
+    /*.header_version = */ CURRENT_HEADER_VERSION,
+    /*.app_version = */ VERSION_MD5,
+
+    /*.app_name = */ "Soundbrd",
+    /*.bitmap_data = */ {
+        0xF0,
+        0x0F,
+        0x1C,
+        0x18,
+        0x17,
+        0x38,
+        0x15,
+        0x78,
+        0x15,
+        0xF8,
+        0x15,
+        0x82,
+        0x15,
+        0x8B,
+        0xD5,
+        0x83,
+        0xD5,
+        0xBB,
+        0xD5,
+        0x83,
+        0x15,
+        0x8B,
+        0x15,
+        0x92,
+        0x15,
+        0xA0,
+        0x17,
+        0x80,
+        0x1C,
+        0x80,
+        0xF0,
+        0xFF,
+    },
+    /*.icon_color = */ ui::Color::orange().v,
+    /*.menu_location = */ app_location_t::TX,
+    /*.desired_menu_position = */ -1,
+
+    /*.m4_app_tag = portapack::spi_flash::image_tag_soundboard */ {'P', 'A', 'T', 'X'},
+    /*.m4_app_offset = */ 0x00000000,  // will be filled at compile time
+};
+}

firmware/application/external/soundboard/soundboard_app.cpp

@@ -33,7 +33,7 @@
 using namespace tonekey;
 using namespace portapack;
 
-namespace ui {
+namespace ui::external_app::soundboard {
 
 #define FILE_PER_PAGE 50
 
@@ -251,7 +251,7 @@ void SoundBoardView::refresh_list() {
 SoundBoardView::SoundBoardView(
     NavigationView& nav)
     : nav_(nav) {
-    baseband::run_image(portapack::spi_flash::image_tag_audio_tx);
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
 
     add_children({&labels,
                   &menu_view,
@@ -323,4 +323,4 @@ SoundBoardView::~SoundBoardView() {
     baseband::shutdown();
 }
 
-}  // namespace ui
+}  // namespace ui::external_app::soundboard

firmware/application/external/soundboard/soundboard_app.hpp

@@ -33,7 +33,7 @@
 #include "app_settings.hpp"
 #include "radio_state.hpp"
 
-namespace ui {
+namespace ui::external_app::soundboard {
 
 class SoundBoardView : public View {
    public:
@@ -178,6 +178,6 @@ class SoundBoardView : public View {
         }};
 };
 
-} /* namespace ui */
+} /* namespace ui::external_app::soundboard */
 
 #endif /*__UI_SOUNDBOARD_H__*/

firmware/application/external/spaceinv/main.cpp

@@ -0,0 +1,55 @@
+/*
+ * ------------------------------------------------------------
+ * |  Made by RocketGod                                       |
+ * |  Find me at https://betaskynet.com                       |
+ * |  Argh matey!                                             |
+ * ------------------------------------------------------------
+ */
+
+#include "ui.hpp"
+#include "ui_spaceinv.hpp"
+#include "ui_navigation.hpp"
+#include "external_app.hpp"
+
+namespace ui::external_app::spaceinv {
+void initialize_app(ui::NavigationView& nav) {
+    nav.push<SpaceInvadersView>();
+}
+}  // namespace ui::external_app::spaceinv
+
+extern "C" {
+
+__attribute__((section(".external_app.app_spaceinv.application_information"), used)) application_information_t _application_information_spaceinv = {
+    (uint8_t*)0x00000000,
+    ui::external_app::spaceinv::initialize_app,
+    CURRENT_HEADER_VERSION,
+    VERSION_MD5,
+
+    "Space Invaders",
+    {
+        // Space Invader alien icon 16x16
+        0x00, 0x18,  // .......##.......
+        0x00, 0x3C,  // ......####......
+        0x00, 0x7E,  // .....######.....
+        0x00, 0xDB,  // ....##.##.##....
+        0x00, 0xFF,  // ....########....
+        0x00, 0xFF,  // ....########....
+        0x00, 0x24,  // ......#..#......
+        0x00, 0x66,  // .....##..##.....
+        0x00, 0x42,  // .....#....#.....
+        0x00, 0x00,  // ................
+        0x00, 0x24,  // ......#..#......
+        0x00, 0x18,  // .......##.......
+        0x00, 0x24,  // ......#..#......
+        0x00, 0x42,  // .....#....#.....
+        0x00, 0x81,  // ....#......#....
+        0x00, 0x00,  // ................
+    },
+    ui::Color::magenta().v,
+    app_location_t::GAMES,
+    -1,
+
+    {0, 0, 0, 0},
+    0x00000000,
+};
+}  // namespace ui::external_app::spaceinv

firmware/application/external/spaceinv/ui_spaceinv.cpp

@@ -0,0 +1,879 @@
+/*
+ * ------------------------------------------------------------
+ * |  Made by RocketGod                                       |
+ * |  Find me at https://betaskynet.com                       |
+ * |  Argh matey!                                             |
+ * ------------------------------------------------------------
+ */
+
+#include "ui_spaceinv.hpp"
+
+namespace ui::external_app::spaceinv {
+
+// Game constants
+#define PLAYER_WIDTH 26
+#define PLAYER_HEIGHT 16
+#define PLAYER_Y 280
+#define BULLET_WIDTH 3
+#define BULLET_HEIGHT 10
+#define BULLET_SPEED 8
+#define MAX_BULLETS 3
+#define INVADER_WIDTH 20
+#define INVADER_HEIGHT 16
+#define INVADER_ROWS 5  // Classic 5 rows
+#define INVADER_COLS 6  // Reduced for more movement space on narrow PP screen
+#define INVADER_GAP_X 10
+#define INVADER_GAP_Y 8  // Gap between invaders
+#define MAX_ENEMY_BULLETS 3
+#define ENEMY_BULLET_SPEED 3
+
+// Game state
+static int game_state = 0;  // 0=menu, 1=playing, 2=game over, 3=wave_complete
+static bool initialized = false;
+static int player_x = 120;
+static uint32_t score = 0;
+static int lives = 3;
+static uint32_t wave = 1;
+static uint32_t speed_bonus = 0;
+static uint32_t wave_complete_timer = 0;
+
+// Cannon Bullets
+static int bullet_x[MAX_BULLETS] = {0, 0, 0};
+static int bullet_y[MAX_BULLETS] = {0, 0, 0};
+static bool bullet_active[MAX_BULLETS] = {false, false, false};
+
+// Enemy bullets
+static int enemy_bullet_x[MAX_ENEMY_BULLETS] = {0, 0, 0};
+static int enemy_bullet_y[MAX_ENEMY_BULLETS] = {0, 0, 0};
+static bool enemy_bullet_active[MAX_ENEMY_BULLETS] = {false, false, false};
+static uint32_t enemy_fire_counter = 0;
+
+// Invaders
+static bool invaders[INVADER_ROWS][INVADER_COLS];
+static int invaders_x = 40;
+static int invaders_y = 60;
+static int invader_direction = 1;
+static uint32_t invader_move_counter = 0;
+static uint32_t invader_move_delay = 30;
+static bool invader_animation_frame = false;
+
+// Menu state
+static bool menu_initialized = false;
+static bool game_over_initialized = false;
+static bool blink_state = true;
+static uint32_t blink_counter = 0;
+static int16_t prompt_x = 0;
+
+// Timer
+static Ticker game_timer;
+static Callback game_update_callback = nullptr;
+static uint32_t game_update_timeout = 0;
+static uint32_t game_update_counter = 0;
+
+// Painter
+static Painter painter;
+
+// For high score access
+static SpaceInvadersView* current_instance = nullptr;
+
+void check_game_timer() {
+    if (game_update_callback) {
+        if (++game_update_counter >= game_update_timeout) {
+            game_update_counter = 0;
+            game_update_callback();
+        }
+    }
+}
+
+void Ticker::attach(Callback func, double delay_sec) {
+    game_update_callback = func;
+    game_update_timeout = delay_sec * 60;
+}
+
+void Ticker::detach() {
+    game_update_callback = nullptr;
+}
+
+static void init_invaders() {
+    // Initialize invader array
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            invaders[row][col] = true;
+        }
+    }
+    invaders_x = 40;
+    invaders_y = 60;
+    invader_direction = 1;
+    invader_move_counter = 0;
+
+    // Clear any active enemy bullets
+    for (int i = 0; i < MAX_ENEMY_BULLETS; i++) {
+        enemy_bullet_active[i] = false;
+    }
+
+    // Clear any active player bullets
+    for (int i = 0; i < MAX_BULLETS; i++) {
+        bullet_active[i] = false;
+    }
+}
+
+static void save_high_score() {
+    if (current_instance && score > current_instance->highScore) {
+        current_instance->highScore = score;
+        // Settings are automatically saved when the view is destroyed
+    }
+}
+
+static void init_menu() {
+    painter.fill_rectangle({0, 0, 240, 320}, Color::black());
+
+    auto style_green = *ui::Theme::getInstance()->fg_green;
+    auto style_yellow = *ui::Theme::getInstance()->fg_yellow;
+    auto style_cyan = *ui::Theme::getInstance()->fg_cyan;
+
+    int16_t screen_width = 240;
+    int16_t title_x = (screen_width - 15 * 8) / 2;
+    int16_t divider_width = 24 * 8;
+    int16_t divider_x = (screen_width - divider_width) / 2;
+    int16_t instruction_width = 22 * 8;
+    int16_t instruction_x = (screen_width - instruction_width) / 2;
+    int16_t prompt_width = 12 * 8;
+    prompt_x = (screen_width - prompt_width) / 2;
+
+    painter.fill_rectangle({0, 30, screen_width, 30}, Color::black());
+    painter.draw_string({title_x, 42}, style_green, "SPACE INVADERS");
+
+    painter.draw_string({divider_x, 70}, style_yellow, "========================");
+
+    painter.fill_rectangle({instruction_x - 5, 100, instruction_width + 10, 80}, Color::black());
+    painter.draw_rectangle({instruction_x - 5, 100, instruction_width + 10, 80}, Color::white());
+
+    painter.draw_string({instruction_x, 110}, style_cyan, " ROTARY: MOVE SHIP");
+    painter.draw_string({instruction_x, 130}, style_cyan, " SELECT: FIRE");
+    painter.draw_string({instruction_x, 150}, style_cyan, " DEFEND EARTH!");
+
+    // Draw point values
+    auto style_purple = *ui::Theme::getInstance()->fg_magenta;
+    painter.draw_string({50, 190}, style_purple, "TOP ROW = 30 PTS");
+    painter.draw_string({50, 205}, style_yellow, "MID ROW = 20 PTS");
+    painter.draw_string({50, 220}, style_green, "BOT ROW = 10 PTS");
+
+    // Draw high score
+    if (current_instance) {
+        auto style_white = *ui::Theme::getInstance()->fg_light;
+        std::string high_score_text = "HIGH SCORE: " + std::to_string(current_instance->highScore);
+        int16_t high_score_x = (screen_width - high_score_text.length() * 8) / 2;
+        painter.draw_string({high_score_x, 240}, style_white, high_score_text);
+    }
+
+    menu_initialized = true;
+}
+
+static void init_game_over() {
+    painter.fill_rectangle({0, 0, 240, 320}, Color::black());
+
+    auto style_red = *ui::Theme::getInstance()->fg_red;
+    auto style_yellow = *ui::Theme::getInstance()->fg_yellow;
+    auto style_cyan = *ui::Theme::getInstance()->fg_cyan;
+    auto style_white = *ui::Theme::getInstance()->fg_light;
+
+    int16_t screen_width = 240;
+
+    // Game Over title
+    int16_t title_x = (screen_width - 9 * 8) / 2;
+    painter.draw_string({title_x, 42}, style_red, "GAME OVER");
+
+    // Divider
+    int16_t divider_width = 24 * 8;
+    int16_t divider_x = (screen_width - divider_width) / 2;
+    painter.draw_string({divider_x, 70}, style_yellow, "========================");
+
+    // Score box
+    int16_t box_width = 22 * 8;
+    int16_t box_x = (screen_width - box_width) / 2;
+    painter.fill_rectangle({box_x - 5, 100, box_width + 10, 80}, Color::black());
+    painter.draw_rectangle({box_x - 5, 100, box_width + 10, 80}, Color::white());
+
+    // Display scores
+    std::string score_text = "SCORE: " + std::to_string(score);
+    int16_t score_x = (screen_width - score_text.length() * 8) / 2;
+    painter.draw_string({score_x, 120}, style_cyan, score_text);
+
+    std::string wave_text = "WAVE: " + std::to_string(wave);
+    int16_t wave_x = (screen_width - wave_text.length() * 8) / 2;
+    painter.draw_string({wave_x, 140}, style_cyan, wave_text);
+
+    // High score section
+    if (current_instance) {
+        if (score > current_instance->highScore) {
+            // New high score!
+            std::string new_high = "NEW HIGH SCORE!";
+            int16_t new_high_x = (screen_width - new_high.length() * 8) / 2;
+            painter.draw_string({new_high_x, 200}, style_yellow, new_high);
+
+            std::string high_score_text = std::to_string(score);
+            int16_t high_score_x = (screen_width - high_score_text.length() * 8) / 2;
+            painter.draw_string({high_score_x, 220}, style_yellow, high_score_text);
+        } else {
+            // Show existing high score
+            std::string high_label = "HIGH SCORE:";
+            int16_t label_x = (screen_width - high_label.length() * 8) / 2;
+            painter.draw_string({label_x, 200}, style_white, high_label);
+
+            std::string high_score_text = std::to_string(current_instance->highScore);
+            int16_t high_score_x = (screen_width - high_score_text.length() * 8) / 2;
+            painter.draw_string({high_score_x, 220}, style_white, high_score_text);
+        }
+    }
+
+    game_over_initialized = true;
+}
+
+static void draw_player() {
+    // Clear the entire player area
+    painter.fill_rectangle({0, PLAYER_Y - 4, 240, PLAYER_HEIGHT + 8}, Color::black());
+
+    // Draw the classic Space Invaders cannon
+    Color green = Color::green();
+
+    // Top part - the cannon barrel
+    painter.draw_hline({player_x + 12, PLAYER_Y}, 2, green);
+    painter.draw_hline({player_x + 12, PLAYER_Y + 1}, 2, green);
+
+    // Upper body
+    painter.draw_hline({player_x + 11, PLAYER_Y + 2}, 4, green);
+    painter.draw_hline({player_x + 11, PLAYER_Y + 3}, 4, green);
+    painter.draw_hline({player_x + 10, PLAYER_Y + 4}, 6, green);
+    painter.draw_hline({player_x + 10, PLAYER_Y + 5}, 6, green);
+
+    // Main body
+    painter.draw_hline({player_x + 2, PLAYER_Y + 6}, 22, green);
+    painter.draw_hline({player_x + 2, PLAYER_Y + 7}, 22, green);
+    painter.draw_hline({player_x + 1, PLAYER_Y + 8}, 24, green);
+    painter.draw_hline({player_x + 1, PLAYER_Y + 9}, 24, green);
+    painter.draw_hline({player_x, PLAYER_Y + 10}, 26, green);
+    painter.draw_hline({player_x, PLAYER_Y + 11}, 26, green);
+    painter.draw_hline({player_x, PLAYER_Y + 12}, 26, green);
+    painter.draw_hline({player_x, PLAYER_Y + 13}, 26, green);
+    painter.draw_hline({player_x, PLAYER_Y + 14}, 26, green);
+    painter.draw_hline({player_x, PLAYER_Y + 15}, 26, green);
+}
+
+static void draw_invader(int row, int col) {
+    int x = invaders_x + col * (INVADER_WIDTH + INVADER_GAP_X);
+    int y = invaders_y + row * (INVADER_HEIGHT + INVADER_GAP_Y);
+
+    // Clear the area first
+    painter.fill_rectangle({x, y, INVADER_WIDTH, INVADER_HEIGHT}, Color::black());
+
+    // Different colors and shapes for different rows
+    Color color;
+    if (row == 0) {
+        color = Color::red();  // Top row - 30 points
+    } else if (row == 1 || row == 2) {
+        color = Color::yellow();  // Middle rows - 20 points
+    } else {
+        color = Color::green();  // Bottom rows - 10 points
+    }
+
+    // Draw different invader types based on row
+    if (row == 0) {
+        // Top row - squid-like invader (30 points)
+        if (invader_animation_frame) {
+            // Frame 1 - arms down
+            painter.draw_hline({x + 8, y + 2}, 4, color);
+            painter.draw_hline({x + 6, y + 3}, 8, color);
+            painter.draw_hline({x + 4, y + 4}, 12, color);
+            painter.draw_hline({x + 2, y + 5}, 16, color);
+            painter.draw_hline({x + 2, y + 6}, 16, color);
+            painter.draw_hline({x, y + 7}, 20, color);
+            painter.draw_hline({x, y + 8}, 20, color);
+            painter.draw_hline({x + 2, y + 9}, 2, color);
+            painter.draw_hline({x + 6, y + 9}, 8, color);
+            painter.draw_hline({x + 16, y + 9}, 2, color);
+            painter.draw_hline({x + 4, y + 10}, 2, color);
+            painter.draw_hline({x + 14, y + 10}, 2, color);
+        } else {
+            // Frame 2 - arms up
+            painter.draw_hline({x + 8, y + 2}, 4, color);
+            painter.draw_hline({x + 6, y + 3}, 8, color);
+            painter.draw_hline({x + 4, y + 4}, 12, color);
+            painter.draw_hline({x + 2, y + 5}, 16, color);
+            painter.draw_hline({x + 2, y + 6}, 16, color);
+            painter.draw_hline({x, y + 7}, 20, color);
+            painter.draw_hline({x, y + 8}, 20, color);
+            painter.draw_hline({x + 4, y + 9}, 2, color);
+            painter.draw_hline({x + 8, y + 9}, 4, color);
+            painter.draw_hline({x + 14, y + 9}, 2, color);
+            painter.draw_hline({x + 2, y + 10}, 2, color);
+            painter.draw_hline({x + 16, y + 10}, 2, color);
+        }
+    } else if (row == 1 || row == 2) {
+        // Middle rows - crab-like invader (20 points)
+        if (invader_animation_frame) {
+            // Frame 1 - arms in
+            painter.draw_hline({x + 4, y + 2}, 2, color);
+            painter.draw_hline({x + 14, y + 2}, 2, color);
+            painter.draw_hline({x + 2, y + 3}, 2, color);
+            painter.draw_hline({x + 6, y + 3}, 8, color);
+            painter.draw_hline({x + 16, y + 3}, 2, color);
+            painter.draw_hline({x + 2, y + 4}, 16, color);
+            painter.draw_hline({x, y + 5}, 6, color);
+            painter.draw_hline({x + 8, y + 5}, 4, color);
+            painter.draw_hline({x + 14, y + 5}, 6, color);
+            painter.draw_hline({x, y + 6}, 20, color);
+            painter.draw_hline({x + 2, y + 7}, 16, color);
+            painter.draw_hline({x + 4, y + 8}, 2, color);
+            painter.draw_hline({x + 14, y + 8}, 2, color);
+            painter.draw_hline({x + 2, y + 9}, 4, color);
+            painter.draw_hline({x + 14, y + 9}, 4, color);
+        } else {
+            // Frame 2 - arms out
+            painter.draw_hline({x + 4, y + 2}, 2, color);
+            painter.draw_hline({x + 14, y + 2}, 2, color);
+            painter.draw_hline({x + 2, y + 3}, 2, color);
+            painter.draw_hline({x + 6, y + 3}, 8, color);
+            painter.draw_hline({x + 16, y + 3}, 2, color);
+            painter.draw_hline({x + 2, y + 4}, 16, color);
+            painter.draw_hline({x, y + 5}, 6, color);
+            painter.draw_hline({x + 8, y + 5}, 4, color);
+            painter.draw_hline({x + 14, y + 5}, 6, color);
+            painter.draw_hline({x, y + 6}, 20, color);
+            painter.draw_hline({x + 2, y + 7}, 16, color);
+            painter.draw_hline({x + 4, y + 8}, 2, color);
+            painter.draw_hline({x + 14, y + 8}, 2, color);
+            painter.draw_hline({x, y + 9}, 2, color);
+            painter.draw_hline({x + 6, y + 9}, 2, color);
+            painter.draw_hline({x + 12, y + 9}, 2, color);
+            painter.draw_hline({x + 18, y + 9}, 2, color);
+        }
+    } else {
+        // Bottom rows - octopus-like invader (10 points)
+        if (invader_animation_frame) {
+            // Frame 1
+            painter.draw_hline({x + 6, y + 2}, 8, color);
+            painter.draw_hline({x + 4, y + 3}, 12, color);
+            painter.draw_hline({x + 2, y + 4}, 16, color);
+            painter.draw_hline({x, y + 5}, 20, color);
+            painter.draw_hline({x, y + 6}, 20, color);
+            painter.draw_hline({x + 4, y + 7}, 4, color);
+            painter.draw_hline({x + 12, y + 7}, 4, color);
+            painter.draw_hline({x + 2, y + 8}, 4, color);
+            painter.draw_hline({x + 8, y + 8}, 4, color);
+            painter.draw_hline({x + 14, y + 8}, 4, color);
+            painter.draw_hline({x + 4, y + 9}, 2, color);
+            painter.draw_hline({x + 14, y + 9}, 2, color);
+        } else {
+            // Frame 2
+            painter.draw_hline({x + 6, y + 2}, 8, color);
+            painter.draw_hline({x + 4, y + 3}, 12, color);
+            painter.draw_hline({x + 2, y + 4}, 16, color);
+            painter.draw_hline({x, y + 5}, 20, color);
+            painter.draw_hline({x, y + 6}, 20, color);
+            painter.draw_hline({x + 4, y + 7}, 4, color);
+            painter.draw_hline({x + 12, y + 7}, 4, color);
+            painter.draw_hline({x + 2, y + 8}, 4, color);
+            painter.draw_hline({x + 8, y + 8}, 4, color);
+            painter.draw_hline({x + 14, y + 8}, 4, color);
+            painter.draw_hline({x + 2, y + 9}, 2, color);
+            painter.draw_hline({x + 16, y + 9}, 2, color);
+        }
+    }
+}
+
+static void draw_all_invaders() {
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            if (invaders[row][col]) {
+                draw_invader(row, col);
+            }
+        }
+    }
+}
+
+static void clear_all_invaders() {
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            if (invaders[row][col]) {
+                int x = invaders_x + col * (INVADER_WIDTH + INVADER_GAP_X);
+                int y = invaders_y + row * (INVADER_HEIGHT + INVADER_GAP_Y);
+                painter.fill_rectangle({x, y, INVADER_WIDTH, INVADER_HEIGHT}, Color::black());
+            }
+        }
+    }
+}
+
+static void clear_all_enemy_bullets() {
+    // Clear any visible enemy bullets
+    for (int i = 0; i < MAX_ENEMY_BULLETS; i++) {
+        if (enemy_bullet_active[i]) {
+            painter.fill_rectangle({enemy_bullet_x[i], enemy_bullet_y[i], BULLET_WIDTH, BULLET_HEIGHT}, Color::black());
+            enemy_bullet_active[i] = false;
+        }
+    }
+}
+
+static void fire_enemy_bullet() {
+    // Find a random invader to fire from
+    int active_count = 0;
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            if (invaders[row][col]) active_count++;
+        }
+    }
+
+    if (active_count == 0) return;
+
+    int shooter = rand() % active_count;
+    int count = 0;
+
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            if (invaders[row][col]) {
+                if (count == shooter) {
+                    // Fire from this invader
+                    for (int i = 0; i < MAX_ENEMY_BULLETS; i++) {
+                        if (!enemy_bullet_active[i]) {
+                            int x = invaders_x + col * (INVADER_WIDTH + INVADER_GAP_X);
+                            int y = invaders_y + row * (INVADER_HEIGHT + INVADER_GAP_Y);
+                            enemy_bullet_x[i] = x + INVADER_WIDTH / 2;
+                            enemy_bullet_y[i] = y + INVADER_HEIGHT;
+                            enemy_bullet_active[i] = true;
+                            return;
+                        }
+                    }
+                }
+                count++;
+            }
+        }
+    }
+}
+
+static void update_enemy_bullets() {
+    for (int i = 0; i < MAX_ENEMY_BULLETS; i++) {
+        if (enemy_bullet_active[i]) {
+            // Clear old position - but protect the border line
+            if (enemy_bullet_y[i] != 49) {  // Don't clear if we're exactly on the border line
+                painter.fill_rectangle({enemy_bullet_x[i], enemy_bullet_y[i], BULLET_WIDTH, BULLET_HEIGHT}, Color::black());
+            }
+
+            enemy_bullet_y[i] += ENEMY_BULLET_SPEED;
+
+            if (enemy_bullet_y[i] > 320) {
+                enemy_bullet_active[i] = false;
+            } else {
+                // Draw at new position
+                painter.fill_rectangle({enemy_bullet_x[i], enemy_bullet_y[i], BULLET_WIDTH, BULLET_HEIGHT}, Color::red());
+
+                // Check collision with player
+                if (enemy_bullet_x[i] >= player_x &&
+                    enemy_bullet_x[i] <= player_x + PLAYER_WIDTH &&
+                    enemy_bullet_y[i] >= PLAYER_Y &&
+                    enemy_bullet_y[i] <= PLAYER_Y + PLAYER_HEIGHT) {
+                    // Player hit!
+                    enemy_bullet_active[i] = false;
+                    lives--;
+
+                    // Update lives display
+                    auto style = *ui::Theme::getInstance()->fg_green;
+                    painter.fill_rectangle({5, 30, 100, 20}, Color::black());
+                    painter.draw_string({5, 30}, style, "Lives: " + std::to_string(lives));
+
+                    if (lives <= 0) {
+                        game_state = 2;  // Game over
+                        save_high_score();
+                    }
+                }
+            }
+        }
+    }
+}
+
+static void update_invaders() {
+    uint32_t adjusted_delay = (speed_bonus >= invader_move_delay) ? 1 : invader_move_delay - speed_bonus;
+
+    if (++invader_move_counter >= adjusted_delay) {
+        invader_move_counter = 0;
+
+        // Clear old positions
+        clear_all_invaders();
+
+        // Check bounds - find the actual leftmost and rightmost invaders
+        int leftmost = INVADER_COLS;
+        int rightmost = -1;
+
+        for (int col = 0; col < INVADER_COLS; col++) {
+            for (int row = 0; row < INVADER_ROWS; row++) {
+                if (invaders[row][col]) {
+                    if (col < leftmost) leftmost = col;
+                    if (col > rightmost) rightmost = col;
+                }
+            }
+        }
+
+        bool hit_edge = false;
+        if (invader_direction > 0) {
+            // Moving right - check rightmost invader
+            int right_edge = invaders_x + rightmost * (INVADER_WIDTH + INVADER_GAP_X) + INVADER_WIDTH;
+            if (right_edge >= 240) {
+                hit_edge = true;
+            }
+        } else {
+            // Moving left - check leftmost invader
+            int left_edge = invaders_x + leftmost * (INVADER_WIDTH + INVADER_GAP_X);
+            if (left_edge <= 0) {
+                hit_edge = true;
+            }
+        }
+
+        // Move invaders
+        if (hit_edge) {
+            invaders_y += 15;  // Move down
+            invader_direction = -invader_direction;
+        } else {
+            invaders_x += invader_direction * 8;  // Horizontal movement
+        }
+
+        // Toggle animation frame
+        invader_animation_frame = !invader_animation_frame;
+
+        // Draw new positions
+        draw_all_invaders();
+    }
+
+    // Enemy firing logic - only in hard mode or always with lower frequency
+    if (!current_instance || !current_instance->easy_mode) {
+        if (++enemy_fire_counter >= 120) {  // Fire every 2 seconds at 60fps
+            enemy_fire_counter = 0;
+            fire_enemy_bullet();
+        }
+    }
+}
+
+static void fire_bullet() {
+    for (int i = 0; i < MAX_BULLETS; i++) {
+        if (!bullet_active[i]) {
+            bullet_active[i] = true;
+            bullet_x[i] = player_x + PLAYER_WIDTH / 2 - BULLET_WIDTH / 2;
+            bullet_y[i] = PLAYER_Y - BULLET_HEIGHT;
+            break;
+        }
+    }
+}
+
+static void update_bullets() {
+    for (int i = 0; i < MAX_BULLETS; i++) {
+        if (bullet_active[i]) {
+            painter.fill_rectangle({bullet_x[i], bullet_y[i], BULLET_WIDTH, BULLET_HEIGHT}, Color::black());
+
+            bullet_y[i] -= BULLET_SPEED;
+
+            if (bullet_y[i] < 50) {
+                bullet_active[i] = false;
+            } else {
+                painter.fill_rectangle({bullet_x[i], bullet_y[i], BULLET_WIDTH, BULLET_HEIGHT}, Color::white());
+            }
+        }
+    }
+}
+
+static void check_collisions() {
+    for (int i = 0; i < MAX_BULLETS; i++) {
+        if (!bullet_active[i]) continue;
+
+        for (int row = 0; row < INVADER_ROWS; row++) {
+            for (int col = 0; col < INVADER_COLS; col++) {
+                if (!invaders[row][col]) continue;
+
+                int inv_x = invaders_x + col * (INVADER_WIDTH + INVADER_GAP_X);
+                int inv_y = invaders_y + row * (INVADER_HEIGHT + INVADER_GAP_Y);
+
+                // Simple collision check
+                if (bullet_x[i] < inv_x + INVADER_WIDTH &&
+                    bullet_x[i] + BULLET_WIDTH > inv_x &&
+                    bullet_y[i] < inv_y + INVADER_HEIGHT &&
+                    bullet_y[i] + BULLET_HEIGHT > inv_y) {
+                    // Hit!
+                    bullet_active[i] = false;
+                    painter.fill_rectangle({bullet_x[i], bullet_y[i], BULLET_WIDTH, BULLET_HEIGHT}, Color::black());
+
+                    invaders[row][col] = false;
+                    painter.fill_rectangle({inv_x, inv_y, INVADER_WIDTH, INVADER_HEIGHT}, Color::black());
+
+                    // Score based on row: top=30, middle=20, bottom=10
+                    if (row == 0) {
+                        score += 30;
+                    } else if (row == 1 || row == 2) {
+                        score += 20;
+                    } else {
+                        score += 10;
+                    }
+
+                    return;
+                }
+            }
+        }
+    }
+}
+
+static void check_wave_complete() {
+    // Check if all invaders are destroyed
+    bool all_destroyed = true;
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            if (invaders[row][col]) {
+                all_destroyed = false;
+                break;
+            }
+        }
+        if (!all_destroyed) break;
+    }
+
+    if (all_destroyed) {
+        // Next wave!
+        wave++;
+        speed_bonus = (wave - 1) * 3;            // Each wave is slightly faster
+        if (speed_bonus > 15) speed_bonus = 15;  // Cap the speed increase
+
+        // Clear any enemy bullets before transitioning
+        clear_all_enemy_bullets();
+
+        // Set state to wave complete and start timer
+        game_state = 3;
+        wave_complete_timer = 60;  // 1 second at 60fps
+
+        // Clear screen and show wave message - but preserve the border line
+        painter.fill_rectangle({0, 51, 240, 269}, Color::black());  // Start at 51 to preserve line at 49
+
+        // Redraw the border line to ensure it's intact - stupid bullet clearing wants to damage it
+        painter.draw_hline({0, 49}, 240, Color::white());
+
+        auto style = *ui::Theme::getInstance()->fg_green;
+        std::string wave_text = "WAVE " + std::to_string(wave);
+        int wave_x = (240 - wave_text.length() * 8) / 2;
+        painter.draw_string({wave_x, 150}, style, wave_text);
+
+        return;
+    }
+
+    // Check if invaders reached player
+    for (int row = 0; row < INVADER_ROWS; row++) {
+        for (int col = 0; col < INVADER_COLS; col++) {
+            if (invaders[row][col]) {
+                int y = invaders_y + row * (INVADER_HEIGHT + INVADER_GAP_Y);
+                if (y + INVADER_HEIGHT >= PLAYER_Y) {  // Actual collision with player
+                    game_state = 2;                    // Game over
+                    save_high_score();
+                    return;
+                }
+            }
+        }
+    }
+}
+
+void game_timer_check() {
+    if (game_state == 0) {
+        // Menu state
+        if (!menu_initialized) {
+            init_menu();
+        }
+
+        if (++blink_counter >= 30) {
+            blink_counter = 0;
+            blink_state = !blink_state;
+
+            auto style = *ui::Theme::getInstance()->fg_red;
+            if (blink_state) {
+                painter.draw_string({prompt_x, 260}, style, "PRESS SELECT");
+            } else {
+                painter.fill_rectangle({prompt_x, 260, 16 * 8, 20}, Color::black());
+            }
+        }
+    } else if (game_state == 1) {
+        // Playing state
+        update_bullets();
+        update_enemy_bullets();
+        update_invaders();
+        check_collisions();
+        check_wave_complete();
+
+        // Update score display
+        static uint32_t last_score = 999999;
+        if (score != last_score) {
+            last_score = score;
+            auto style = *ui::Theme::getInstance()->fg_green;
+            painter.fill_rectangle({5, 10, 100, 20}, Color::black());
+            painter.draw_string({5, 10}, style, "Score: " + std::to_string(score));
+
+            // Redraw border line after score update (in case it was damaged) - stupid bullet clearing wants to damage it
+            painter.draw_hline({0, 49}, 240, Color::white());
+        }
+
+        // Periodically redraw the border line to fix any damage because it's a pain in the ass
+        static uint32_t border_redraw_counter = 0;
+        if (++border_redraw_counter >= 60) {  // Once per second - might make less if causing flickering
+            border_redraw_counter = 0;
+            painter.draw_hline({0, 49}, 240, Color::white());
+        }
+    } else if (game_state == 2) {
+        // Game over state
+        if (!game_over_initialized) {
+            init_game_over();
+        }
+
+        if (++blink_counter >= 30) {
+            blink_counter = 0;
+            blink_state = !blink_state;
+
+            auto style = *ui::Theme::getInstance()->fg_red;
+            if (blink_state) {
+                painter.draw_string({prompt_x, 260}, style, "PRESS SELECT");
+            } else {
+                painter.fill_rectangle({prompt_x, 260, 16 * 8, 20}, Color::black());
+            }
+        }
+    } else if (game_state == 3) {
+        // Wave complete state - wait for timer
+        if (--wave_complete_timer <= 0) {
+            // Timer expired, start next wave
+            game_state = 1;
+
+            // Clear and redraw game area - preserve border line
+            painter.fill_rectangle({0, 51, 240, 269}, Color::black());  // Start at 51 to preserve line
+
+            // Restore UI
+            auto style = *ui::Theme::getInstance()->fg_green;
+            painter.draw_string({5, 10}, style, "Score: " + std::to_string(score));
+            painter.draw_string({5, 30}, style, "Lives: " + std::to_string(lives));
+
+            // Redraw the border line in case it was damaged again
+            painter.draw_hline({0, 49}, 240, Color::white());
+
+            // Initialize new wave of invaders
+            init_invaders();
+            draw_all_invaders();
+            draw_player();
+        }
+    }
+}
+
+SpaceInvadersView::SpaceInvadersView(NavigationView& nav)
+    : nav_{nav} {
+    add_children({&dummy, &button_difficulty});
+    current_instance = this;
+    game_timer.attach(&game_timer_check, 1.0 / 60.0);
+
+    // Update button text based on loaded setting
+    button_difficulty.set_text(easy_mode ? "Mode: EASY" : "Mode: HARD");
+
+    button_difficulty.on_select = [this](Button&) {
+        easy_mode = !easy_mode;
+        button_difficulty.set_text(easy_mode ? "Mode: EASY" : "Mode: HARD");
+        // Settings will be saved when the view is destroyed
+    };
+}
+
+SpaceInvadersView::~SpaceInvadersView() {
+    // Settings are automatically saved when destroyed
+    current_instance = nullptr;
+}
+
+void SpaceInvadersView::on_show() {
+}
+
+void SpaceInvadersView::paint(Painter& painter) {
+    (void)painter;
+
+    if (!initialized) {
+        initialized = true;
+        game_state = 0;
+        menu_initialized = false;
+        game_over_initialized = false;
+        blink_state = true;
+        blink_counter = 0;
+        player_x = 107;
+        score = 0;
+        lives = 3;
+        wave = 1;
+        speed_bonus = 0;
+
+        // Initialize arrays
+        for (int i = 0; i < MAX_BULLETS; i++) {
+            bullet_active[i] = false;
+            bullet_x[i] = 0;
+            bullet_y[i] = 0;
+        }
+
+        for (int i = 0; i < MAX_ENEMY_BULLETS; i++) {
+            enemy_bullet_active[i] = false;
+            enemy_bullet_x[i] = 0;
+            enemy_bullet_y[i] = 0;
+        }
+
+        init_invaders();
+    }
+}
+
+void SpaceInvadersView::frame_sync() {
+    check_game_timer();
+    set_dirty();
+}
+
+bool SpaceInvadersView::on_encoder(const EncoderEvent delta) {
+    if (game_state == 1) {
+        if (delta > 0) {
+            player_x += 5;
+            if (player_x > 214) player_x = 214;
+            draw_player();
+        } else if (delta < 0) {
+            player_x -= 5;
+            if (player_x < 0) player_x = 0;
+            draw_player();
+        }
+
+        set_dirty();
+    }
+    return true;
+}
+
+bool SpaceInvadersView::on_key(const KeyEvent key) {
+    if (key == KeyEvent::Select) {
+        if (game_state == 0) {
+            // Start game
+            game_state = 1;
+            button_difficulty.hidden(true);
+            score = 0;
+            lives = 3;
+            wave = 1;
+            speed_bonus = 0;
+            invader_move_delay = 30;
+            enemy_fire_counter = 0;
+            init_invaders();
+
+            painter.fill_rectangle({0, 0, 240, 320}, Color::black());
+            painter.draw_hline({0, 49}, 240, Color::white());
+
+            auto style = *ui::Theme::getInstance()->fg_green;
+            painter.draw_string({5, 10}, style, "Score: 0");
+            painter.draw_string({5, 30}, style, "Lives: 3");
+
+            draw_all_invaders();
+            draw_player();
+
+            set_dirty();
+        } else if (game_state == 1) {
+            fire_bullet();
+        } else if (game_state == 2) {
+            // Return to menu
+            game_state = 0;
+            menu_initialized = false;
+            game_over_initialized = false;
+            button_difficulty.hidden(false);
+            set_dirty();
+        }
+    }
+
+    return true;
+}
+
+}  // namespace ui::external_app::spaceinv

firmware/application/external/spaceinv/ui_spaceinv.hpp

@@ -0,0 +1,79 @@
+/*
+ * ------------------------------------------------------------
+ * |  Made by RocketGod                                       |
+ * |  Find me at https://betaskynet.com                       |
+ * |  Argh matey!                                             |
+ * ------------------------------------------------------------
+ */
+
+#ifndef __UI_SPACEINV_H__
+#define __UI_SPACEINV_H__
+
+#include "ui.hpp"
+#include "ui_navigation.hpp"
+#include "event_m0.hpp"
+#include "message.hpp"
+#include "irq_controls.hpp"
+#include "random.hpp"
+#include "lpc43xx_cpp.hpp"
+#include "ui_widget.hpp"
+#include "app_settings.hpp"
+
+namespace ui::external_app::spaceinv {
+
+using Callback = void (*)(void);
+
+class Ticker {
+   public:
+    Ticker() = default;
+    void attach(Callback func, double delay_sec);
+    void detach();
+};
+
+void check_game_timer();
+void game_timer_check();
+
+class SpaceInvadersView : public View {
+   public:
+    SpaceInvadersView(NavigationView& nav);
+    ~SpaceInvadersView();  // Destructor will trigger settings save
+    void on_show() override;
+
+    std::string title() const override { return "Space Invaders"; }
+
+    void focus() override { dummy.focus(); }
+    void paint(Painter& painter) override;
+    void frame_sync();
+    bool on_encoder(const EncoderEvent event) override;
+    bool on_key(KeyEvent key) override;
+
+    uint32_t highScore = 0;
+    bool easy_mode = false;
+
+   private:
+    NavigationView& nav_;
+
+    Button button_difficulty{
+        {70, 285, 100, 20},
+        "Mode: HARD"};
+
+    app_settings::SettingsManager settings_{
+        "spaceinv",
+        app_settings::Mode::NO_RF,
+        {{"highscore"sv, &highScore},
+         {"easy_mode"sv, &easy_mode}}};
+
+    Button dummy{
+        {240, 0, 0, 0},
+        ""};
+
+    MessageHandlerRegistration message_handler_frame_sync{
+        Message::ID::DisplayFrameSync,
+        [this](const Message* const) {
+            this->frame_sync();
+        }};
+};
+
+}  // namespace ui::external_app::spaceinv
+
+#endif /* __UI_SPACEINV_H__ */

firmware/application/external/wav_view/ui_view_wav.cpp

@@ -262,7 +262,7 @@ void ViewWavView::on_playback_progress(const uint32_t progress) {
 ViewWavView::ViewWavView(
     NavigationView& nav)
     : nav_(nav) {
-    baseband::run_image(portapack::spi_flash::image_tag_audio_tx);
+    baseband::run_prepared_image(portapack::memory::map::m4_code.base());
     wav_reader = std::make_unique<WAVFileReader>();
 
     add_children({&labels,

firmware/application/log_file.cpp

@@ -28,10 +28,10 @@ Optional<File::Error> LogFile::write_entry(const std::string& entry) {
 
 Optional<File::Error> LogFile::write_entry(const rtc::RTC& datetime, const std::string& entry) {
     std::string timestamp = to_string_timestamp(datetime);
-    return write_line(timestamp + " " + entry);
+    return write_raw(timestamp + " " + entry);
 }
 
-Optional<File::Error> LogFile::write_line(const std::string& message) {
+Optional<File::Error> LogFile::write_raw(const std::string& message) {
     auto error = file.write_line(message);
     if (!error) {
         file.sync();

firmware/application/log_file.hpp

@@ -39,11 +39,10 @@ class LogFile {
 
     Optional<File::Error> write_entry(const std::string& entry);
     Optional<File::Error> write_entry(const rtc::RTC& datetime, const std::string& entry);
+    Optional<File::Error> write_raw(const std::string& message);
 
    private:
     File file{};
-
-    Optional<File::Error> write_line(const std::string& message);
 };
 
 #endif /*__LOG_FILE_H__*/

firmware/application/recent_entries.cpp

@@ -24,7 +24,7 @@
 namespace ui {
 
 RecentEntriesColumns::RecentEntriesColumns(
-    const std::initializer_list<RecentEntriesColumn> columns)
+    std::initializer_list<RecentEntriesColumn> columns)
     : _columns{columns} {
 }
 

firmware/application/recent_entries.hpp

@@ -133,14 +133,27 @@ class RecentEntriesColumns {
    public:
     using ContainerType = std::vector<RecentEntriesColumn>;
 
-    RecentEntriesColumns(
-        const std::initializer_list<RecentEntriesColumn> columns);
+    RecentEntriesColumns(std::initializer_list<RecentEntriesColumn> columns);
 
-    ContainerType::const_iterator begin() const { return std::begin(_columns); }
-    ContainerType::const_iterator end() const { return std::end(_columns); }
+    ContainerType::iterator begin() { return _columns.begin(); }
+    ContainerType::iterator end() { return _columns.end(); }
+    ContainerType::const_iterator begin() const { return _columns.begin(); }
+    ContainerType::const_iterator end() const { return _columns.end(); }
+
+    void set(size_t index, const std::string& name, size_t width) {
+        if (index < _columns.size()) {
+            _columns[index] = {name, width};
+        }
+    }
+
+    const RecentEntriesColumn& at(size_t index) const {
+        return _columns.at(index);
+    }
+
+    size_t size() const { return _columns.size(); }
 
    private:
-    const ContainerType _columns;
+    ContainerType _columns;
 };
 
 class RecentEntriesHeader : public Widget {

firmware/application/ui/ui_geomap.cpp

@@ -110,6 +110,7 @@ GeoPos::GeoPos(
     text_alt_unit.set(altitude_unit_ ? "m" : "ft");
     if (speed_unit_ == KMPH) text_speed_unit.set("kmph");
     if (speed_unit_ == MPH) text_speed_unit.set("mph");
+    if (speed_unit_ == KNOTS) text_speed_unit.set("knots");
     if (speed_unit_ == HIDDEN) {
         text_speed_unit.hidden(true);
         label_spd_position.hidden(true);

firmware/application/ui/ui_geomap.hpp

@@ -81,6 +81,7 @@ class GeoPos : public View {
         NONE = 0,
         MPH,
         KMPH,
+        KNOTS,
         HIDDEN = 255
     };
 
@@ -134,7 +135,7 @@ class GeoPos : public View {
         {12 * 8, 0 * 16, 2 * 8, 16},
         ""};
     Text text_speed_unit{
-        {25 * 8, 0 * 16, 4 * 8, 16},
+        {25 * 8, 0 * 16, 5 * 8, 16},
         ""};
 
     NumberField field_lat_degrees{

firmware/application/ui/ui_receiver.cpp

@@ -275,29 +275,63 @@ FrequencyKeypadView::FrequencyKeypadView(
         };
         button.on_select = button_fn;
         button.set_parent_rect({(n % 3) * button_w,
-                                (n / 3) * button_h + 24,
+                                (n / 3) * button_h + 25,
                                 button_w, button_h});
         button.set_text(label);
         n++;
     }
 
-    add_children({&button_save,
+    add_children({&button_save_ghz,
+                  &button_save_khz,
+                  &button_save_mhz,
                   &button_load,
-                  &button_close});
+                  &button_clear,
+                  &button_done_ghz,
+                  &button_done_mhz,
+                  &button_done_khz});
 
-    button_save.on_select = [this, &nav](Button&) {
-        nav.push<FrequencySaveView>(this->value());
+    button_save_mhz.on_select = [this, &nav](Button&) {
+        nav.push<FrequencySaveView>(this->value(FrequencyUnit::MHZ));  // pass as mhz and handle unit convert logic there, cuz idk if pass others would loss something
     };
+    button_save_ghz.on_select = [this, &nav](Button&) {
+        nav.push<FrequencySaveView>(this->value(FrequencyUnit::GHZ));
+    };
+    button_save_khz.on_select = [this, &nav](Button&) {
+        nav.push<FrequencySaveView>(this->value(FrequencyUnit::KHZ));
+    };
+
     button_load.on_select = [this, &nav](Button&) {
         auto load_view = nav.push<FrequencyLoadView>();
         load_view->on_frequency_loaded = [this](rf::Frequency value) {
             set_value(value);
         };
     };
+    button_clear.on_select = [this](Button&) {
+        mhz.clear();
+        submhz.clear();
+        clear_field_if_digits_entered = true;
+        if (state == State::DigitSubMHz) {
+            state = State::DigitMHz;
+        }
+        draw_input_hint();
+        update_text();
+    };
 
-    button_close.on_select = [this, &nav](Button&) {
+    button_done_ghz.on_select = [this, &nav](Button&) {
         if (on_changed)
-            on_changed(this->value());
+            on_changed(this->value(FrequencyUnit::GHZ));
+        nav.pop();
+    };
+
+    button_done_mhz.on_select = [this, &nav](Button&) {
+        if (on_changed)
+            on_changed(this->value(FrequencyUnit::MHZ));
+        nav.pop();
+    };
+
+    button_done_khz.on_select = [this, &nav](Button&) {
+        if (on_changed)
+            on_changed(this->value(FrequencyUnit::KHZ));
         nav.pop();
     };
 
@@ -305,11 +339,20 @@ FrequencyKeypadView::FrequencyKeypadView(
 }
 
 void FrequencyKeypadView::focus() {
-    button_close.focus();
+    button_done_mhz.focus();
 }
 
-rf::Frequency FrequencyKeypadView::value() const {
-    return mhz.as_int() * 1000000ULL + submhz.as_int() * submhz_base;
+rf::Frequency FrequencyKeypadView::value(FrequencyUnit frequency_uni) const {
+    switch (frequency_uni) {
+        case FrequencyUnit::GHZ:
+            return mhz.as_int() * 1000000000ULL + submhz.as_int() * submhz_base * 1000;
+        case FrequencyUnit::MHZ:
+            return mhz.as_int() * 1000000ULL + submhz.as_int() * submhz_base;
+        case FrequencyUnit::KHZ:
+            return mhz.as_int() * 1000ULL + submhz.as_int() * submhz_base / 1000;
+        default:
+            return mhz.as_int() * 1000000ULL + submhz.as_int() * submhz_base;
+    }
 }
 
 void FrequencyKeypadView::set_value(const rf::Frequency new_value) {
@@ -381,6 +424,25 @@ void FrequencyKeypadView::field_toggle() {
         state = State::DigitMHz;
         clear_field_if_digits_entered = true;
     }
+    draw_input_hint();
+}
+
+void FrequencyKeypadView::draw_input_hint() {
+    set_dirty();
+}
+
+void FrequencyKeypadView::paint(Painter& painter) {
+    View::paint(painter);
+
+    const bool s = state == State::DigitMHz;
+    painter.draw_hline(
+        {0, 36},
+        8 * 4,
+        s ? Color::white() : Color::black());
+    painter.draw_hline(
+        {5 * 8, 36},
+        8 * 4,
+        s ? Color::black() : Color::white());
 }
 
 void FrequencyKeypadView::update_text() {

firmware/application/ui/ui_receiver.hpp

@@ -44,6 +44,12 @@ extern options_db_t freqman_steps;
 
 namespace ui {
 
+enum FrequencyUnit {
+    GHZ = 0,
+    MHZ,
+    KHZ,
+};
+
 class FrequencyField : public Widget {
    public:
     std::function<void(rf::Frequency)> on_change{};
@@ -207,8 +213,9 @@ class FrequencyKeypadView : public View {
         const rf::Frequency value);
 
     void focus() override;
+    void paint(Painter& painter) override;
 
-    rf::Frequency value() const;
+    rf::Frequency value(FrequencyUnit frequency_uni) const;
     void set_value(const rf::Frequency new_value);
     bool on_encoder(const EncoderEvent delta) override;
     bool on_keyboard(const KeyboardEvent key) override;
@@ -220,7 +227,6 @@ class FrequencyKeypadView : public View {
 
     static constexpr int mhz_digits = 4;
     static constexpr int submhz_digits = 4;
-
     static constexpr int mhz_mod = pow(10, mhz_digits);
     static constexpr int submhz_base = pow(10, 6 - submhz_digits);
     static constexpr int text_digits = mhz_digits + 1 + submhz_digits;
@@ -230,15 +236,30 @@ class FrequencyKeypadView : public View {
 
     std::array<Button, 12> buttons{};
 
-    Button button_save{
-        {0, button_h * 5, 60, button_h},
-        "Save"};
+    Button button_save_ghz{
+        {0, 14 * 16, 80 / 2 - 1, 2 * 16},
+        "GHz"};
+    Button button_save_khz{
+        {0 + 40 - 1, 14 * 16, 80 / 2, 2 * 16},
+        "kHz"};
+    Button button_save_mhz{
+        {0, 16 * 16, 80 - 1, 3 * 16},
+        "Save MHz"};
     Button button_load{
-        {60, button_h * 5, 60, button_h},
+        {80 + 1, 14 * 16, 80 - 2, 40},
         "Load"};
-    Button button_close{
-        {128, button_h * 5, 112, button_h},
-        "Done"};
+    Button button_clear{
+        {80 + 1, 264, 80 - 2, 40},
+        "Clear"};
+    Button button_done_ghz{
+        {160 + 1, 14 * 16, 80 / 2 - 1, 2 * 16},
+        "GHz"};
+    Button button_done_khz{
+        {160 + 40, 14 * 16, 80 / 2 - 1, 2 * 16},
+        "kHz"};
+    Button button_done_mhz{
+        {160 + 1, 16 * 16, 80 - 2, 3 * 16},
+        "Done MHz"};
 
     /* TODO: Template arg required in enum?! */
     FieldString<mhz_digits> mhz{FieldString<4>::Justify::Right};
@@ -254,6 +275,8 @@ class FrequencyKeypadView : public View {
 
     void on_button(Button& button);
 
+    void draw_input_hint();
+
     void digit_add(const char c);
     void digit_delete();
 

firmware/application/ui_navigation.cpp

@@ -70,9 +70,7 @@
 #include "ble_rx_app.hpp"
 #include "ble_tx_app.hpp"
 #include "capture_app.hpp"
-#include "ert_app.hpp"
 #include "pocsag_app.hpp"
-#include "soundboard_app.hpp"
 
 #include "core_control.hpp"
 #include "file.hpp"
@@ -131,7 +129,6 @@ const NavigationView::AppList NavigationView::appList = {
     {"aprsrx", "APRS", RX, Color::green(), &bitmap_icon_aprs, new ViewFactory<APRSRXView>()},
     {"audio", "Audio", RX, Color::green(), &bitmap_icon_speaker, new ViewFactory<AnalogAudioView>()},
     {"blerx", "BLE Rx", RX, Color::green(), &bitmap_icon_btle, new ViewFactory<BLERxView>()},
-    {"ert", "ERT Meter", RX, Color::green(), &bitmap_icon_ert, new ViewFactory<ERTAppView>()},
     {"pocsag", "POCSAG", RX, Color::green(), &bitmap_icon_pocsag, new ViewFactory<POCSAGAppView>()},
     {"radiosonde", "Radiosnde", RX, Color::green(), &bitmap_icon_sonde, new ViewFactory<SondeView>()},
     {"search", "Search", RX, Color::yellow(), &bitmap_icon_search, new ViewFactory<SearchView>()},
@@ -144,7 +141,6 @@ const NavigationView::AppList NavigationView::appList = {
     {"ooktx", "OOK", TX, ui::Color::yellow(), &bitmap_icon_remote, new ViewFactory<EncodersView>()},
     {"pocsagtx", "POCSAG TX", TX, ui::Color::green(), &bitmap_icon_pocsag, new ViewFactory<POCSAGTXView>()},
     {"rdstx", "RDS", TX, ui::Color::green(), &bitmap_icon_rds, new ViewFactory<RDSView>()},
-    {"soundbrd", "Soundbrd", TX, ui::Color::green(), &bitmap_icon_soundboard, new ViewFactory<SoundBoardView>()},
     {"touchtune", "TouchTune", TX, ui::Color::green(), &bitmap_icon_touchtunes, new ViewFactory<TouchTunesView>()},
     {"signalgen", "SignalGen", TX, Color::green(), &bitmap_icon_cwgen, new ViewFactory<SigGenView>()},
     /* TRX ********************************************************************/
@@ -764,7 +760,7 @@ void add_apps(NavigationView& nav, BtnGridView& grid, app_location_t loc) {
     for (auto& app : NavigationView::appList) {
         if (app.menuLocation == loc) {
             grid.add_item({app.displayName, app.iconColor, app.icon,
-                           [&nav, &app]() { 
+                           [&nav, &app]() {
                             i2cdev::I2CDevManager::set_autoscan_interval(0); //if i navigate away from any menu, turn off autoscan
                             nav.push_view(std::unique_ptr<View>(app.viewFactory->produce(nav))); }},
                           true);
@@ -791,8 +787,8 @@ void add_external_items(NavigationView& nav, app_location_t location, BtnGridVie
                          error_tile_pos);
     } else {
         std::sort(externalItems.begin(), externalItems.end(), [](const auto &a, const auto &b)
-        { 
-            return a.desired_position < b.desired_position; 
+        {
+            return a.desired_position < b.desired_position;
         });
 
         for (auto const& gridItem : externalItems) {
@@ -801,7 +797,7 @@ void add_external_items(NavigationView& nav, app_location_t location, BtnGridVie
             } else {
                 grid.insert_item(gridItem, gridItem.desired_position, true);
             }
-            
+
         }
 
         grid.update_items();

firmware/baseband/CMakeLists.txt

@@ -279,7 +279,7 @@ macro(DeclareTargets chunk_tag name)
 	include_directories(. ${INCDIR} ${MODE_INCDIR})
 	link_directories(${LLIBDIR})
 	target_link_libraries(${PROJECT_NAME}.elf ${LIBS})
-	
+
 	target_link_libraries(${PROJECT_NAME}.elf -Wl,-Map=${PROJECT_NAME}.map)
 	target_link_libraries(${PROJECT_NAME}.elf -Wl,--print-memory-usage)
 
@@ -369,13 +369,6 @@ set(MODE_CPPSRC
 DeclareTargets(PAMA am_audio)
 
 
-### Audio transmit
-
-set(MODE_CPPSRC
-	proc_audiotx.cpp
-)
-DeclareTargets(PATX audio_tx)
-
 ### Capture
 
 set(MODE_CPPSRC
@@ -397,13 +390,6 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PSON sonde)
 
-### FSK TX
-
-set(MODE_CPPSRC
-	proc_fsk.cpp
-)
-DeclareTargets(PFSK fsktx)
-
 ### FSK RX
 
 set(MODE_CPPSRC
@@ -411,6 +397,12 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PFSR fskrx)
 
+### FSK TX
+
+set(MODE_CPPSRC
+	proc_fsk.cpp
+)
+DeclareTargets(PFSK fsktx)
 
 ### Microphone transmit
 
@@ -579,6 +571,14 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PAFR afskrx)
 
+### EPIRB
+
+set(MODE_CPPSRC
+	proc_epirb.cpp
+)
+DeclareTargets(PEPI epirb_rx)
+
+
 ### NRF RX
 
 set(MODE_CPPSRC
@@ -683,6 +683,13 @@ set(MODE_CPPSRC
 )
 DeclareTargets(PNOA noaaapt_rx)
 
+### Audio transmit
+
+set(MODE_CPPSRC
+	proc_audiotx.cpp
+)
+DeclareTargets(PATX audio_tx)
+
 
 ### HackRF "factory" firmware
 

firmware/baseband/proc_ble_tx.cpp

@@ -30,10 +30,10 @@
 
 #define new_way
 
-int BTLETxProcessor::gen_sample_from_phy_bit(char* bit, char* sample, int num_bit) {
+int BTLETxProcessor::gen_sample_from_phy_bit(char* bit, int8_t* sample, int num_bit) {
     int num_sample = (num_bit * SAMPLE_PER_SYMBOL) + (LEN_GAUSS_FILTER * SAMPLE_PER_SYMBOL);
 
-    int8_t* tmp_phy_bit_over_sampling_int8 = (int8_t*)tmp_phy_bit_over_sampling;
+    memset(tmp_phy_bit_over_sampling_int8, 0, sizeof(tmp_phy_bit_over_sampling_int8));
 
     int i, j;
 
@@ -242,6 +242,7 @@ void BTLETxProcessor::fill_adv_pdu_header(PKT_INFO* pkt, int txadd, int rxadd, i
         bit_out[2] = 1;
         bit_out[1] = 0;
         bit_out[0] = 0;
+        rxadd = 1;  // Scan response assumed to be with random address.
     } else if (pkt->pkt_type == CONNECT_REQ) {
         bit_out[3] = 0;
         bit_out[2] = 1;
@@ -279,14 +280,12 @@ void BTLETxProcessor::fill_adv_pdu_header(PKT_INFO* pkt, int txadd, int rxadd, i
 int BTLETxProcessor::calculate_sample_for_ADV(PKT_INFO* pkt) {
     pkt->num_info_bit = 0;
 
-    // gen preamble and access address
-    const char* AA = "AA";
-    const char* AAValue = "D6BE898E";
-    pkt->num_info_bit = pkt->num_info_bit + convert_hex_to_bit((char*)AA, pkt->info_bit, 0, 1);
-    pkt->num_info_bit = pkt->num_info_bit + convert_hex_to_bit((char*)AAValue, pkt->info_bit + pkt->num_info_bit, 0, 4);
+    pkt->num_info_bit = pkt->num_info_bit + convert_hex_to_bit(AA, pkt->info_bit, 0, 1);
+    pkt->num_info_bit = pkt->num_info_bit + convert_hex_to_bit(AAValue, pkt->info_bit + pkt->num_info_bit, 0, 4);
 
     // get txadd and rxadd
-    int txadd = 0, rxadd = 0;
+    // Tx assumed to be random address.
+    int txadd = 1, rxadd = 0;
 
     pkt->num_info_bit = pkt->num_info_bit + 16;  // 16 is header length
 
@@ -332,39 +331,56 @@ int BTLETxProcessor::calculate_pkt_info(PKT_INFO* pkt) {
 void BTLETxProcessor::execute(const buffer_c8_t& buffer) {
     int8_t re, im;
 
-    // This is called at 4M/2048 = 1953Hz
-    for (size_t i = 0; i < buffer.count; i++) {
-        if (configured) {
-            // This is going to loop through each sample bit and push it to the output buffer.
-            if (sample_count > length) {
-                configured = false;
-                sample_count = 0;
-
-                txprogress_message.done = true;
-                shared_memory.application_queue.push(txprogress_message);
-            } else {
-                // Real and imaginary was already calculated in gen_sample_from_phy_bit.
-                // It was processed from each data bit, run through a Gaussian Filter, and then ran through sin and cos table to get each IQ bit.
-                re = (int8_t)packets.phy_sample[sample_count++];
-                im = (int8_t)packets.phy_sample[sample_count++];
-
-                buffer.p[i] = {re, im};
-
-                if (progress_count >= progress_notice) {
-                    progress_count = 0;
-                    txprogress_message.progress++;
-                    txprogress_message.done = false;
-                    shared_memory.application_queue.push(txprogress_message);
-                } else {
-                    progress_count++;
-                }
-            }
-        } else {
-            re = 0;
-            im = 0;
-
-            buffer.p[i] = {re, im};
+    if (!configured) {
+        for (size_t i = 0; i < buffer.count; i++) {
+            buffer.p[i] = {0, 0};  // Fill the buffer with zeros if not configured
         }
+        return;
+    }
+
+    if (configured) {
+        switch (txprogress_message.progress) {
+            case 1:
+            case 2: {
+                for (size_t i = 0; i < buffer.count; i++) {
+                    buffer.p[i] = {0, 0};  // Pre and Post pad BLE Packet.
+                }
+            } break;
+
+            case 0: {
+                size_t i = 0;
+                for (i = 0; (i < buffer.count) && (sample_count < length); i++) {
+                    re = packets.phy_sample[sample_count++];
+                    im = packets.phy_sample[sample_count++];
+
+                    buffer.p[i] = {re, im};
+                }
+
+                if (sample_count >= length && i < buffer.count) {
+                    // Fill the rest of the buffer with zeros if we reach the end of the packet
+                    for (; i < buffer.count; i++) {
+                        buffer.p[i] = {0, 0};
+                    }
+                }
+            } break;
+
+            case 3: {
+                for (size_t i = 0; i < buffer.count; i++) {
+                    buffer.p[i] = {0, 0};  // Pre and Post pad BLE Packet.
+                }
+
+                if (sample_count >= length) {
+                    sample_count = 0;
+                    configured = false;
+
+                    doneSending = true;
+                    txprogress_message.done = true;
+                    shared_memory.application_queue.push(txprogress_message);
+                }
+            } break;
+        }
+
+        txprogress_message.progress++;
     }
 }
 
@@ -397,11 +413,13 @@ void BTLETxProcessor::configure(const BTLETxConfigureMessage& message) {
     // Starting at sample_count 0 since packets.num_phy_sample contains every sample needed to be sent out.
     sample_count = 0;
     progress_count = 0;
+    repeatCount = 0;
     progress_notice = 64;
 
     txprogress_message.progress = 0;
     txprogress_message.done = false;
     configured = true;
+    doneSending = false;
 }
 
 int main() {

firmware/baseband/proc_ble_tx.hpp

@@ -80,18 +80,11 @@ class BTLETxProcessor : public BasebandProcessor {
         int num_info_bit;
         char info_bit[MAX_NUM_PHY_BYTE * 8];  // without CRC and whitening
 
-        int num_info_byte;
-        uint8_t info_byte[MAX_NUM_PHY_BYTE];
-
         int num_phy_bit;
         char phy_bit[MAX_NUM_PHY_BYTE * 8];  // all bits which will be fed to GFSK modulator
 
-        int num_phy_byte;
-        uint8_t phy_byte[MAX_NUM_PHY_BYTE];
-
         int num_phy_sample;
-        char phy_sample[2 * MAX_NUM_PHY_SAMPLE];     // GFSK output to D/A (hackrf board)
-        int8_t phy_sample1[2 * MAX_NUM_PHY_SAMPLE];  // GFSK output to D/A (hackrf board)
+        int8_t phy_sample[2 * MAX_NUM_PHY_SAMPLE];  // GFSK output to D/A (hackrf board)
 
         int space;  // how many millisecond null signal shouwl be padded after this packet
     };
@@ -108,22 +101,27 @@ class BTLETxProcessor : public BasebandProcessor {
     void crc24(char* bit_in, int num_bit, char* init_hex, char* crc_result);
     int convert_hex_to_bit(char* hex, char* bit, int stream_flip, int octet_limit);
     void octet_hex_to_bit(char* hex, char* bit);
-    int gen_sample_from_phy_bit(char* bit, char* sample, int num_bit);
+    int gen_sample_from_phy_bit(char* bit, int8_t* sample, int num_bit);
     bool configured = false;
 
-    float tmp_phy_bit_over_sampling[MAX_NUM_PHY_SAMPLE + 2 * LEN_GAUSS_FILTER * SAMPLE_PER_SYMBOL];
+    int8_t tmp_phy_bit_over_sampling_int8[MAX_NUM_PHY_SAMPLE + 2 * LEN_GAUSS_FILTER * SAMPLE_PER_SYMBOL];
     float gauss_coef[LEN_GAUSS_FILTER * SAMPLE_PER_SYMBOL] = {7.561773e-09, 1.197935e-06, 8.050684e-05, 2.326833e-03, 2.959908e-02, 1.727474e-01, 4.999195e-01, 8.249246e-01, 9.408018e-01, 8.249246e-01, 4.999195e-01, 1.727474e-01, 2.959908e-02, 2.326833e-03, 8.050684e-05, 1.197935e-06};
 
     uint32_t samples_per_bit{4};
     uint32_t channel_number{37};
     char macAddress[13] = "FFFFFFFFFF";
+    char AA[3] = "AA";
+    char AAValue[9] = "D6BE898E";
     char advertisementData[63] = {0};
 
     uint32_t length{0};
     uint32_t shift_zero{}, shift_one{};
     uint32_t progress_notice{}, progress_count{0};
     uint32_t sample_count{0};
+    uint32_t paddingCount{0};
+    uint32_t repeatCount{0};
     uint32_t phase{0}, sphase{0};
+    bool doneSending{false};
 
     uint8_t cur_bit{0};
     uint16_t bit_pos{0};

firmware/baseband/proc_btlerx.cpp

@@ -27,7 +27,16 @@
 
 #include "event_m4.hpp"
 
-uint32_t BTLERxProcessor::crc_init_reorder(uint32_t crc_init) {
+inline float BTLERxProcessor::get_phase_diff(const complex16_t& sample0, const complex16_t& sample1) {
+    // Calculate the phase difference between two samples.
+    float dI = sample1.real() * sample0.real() + sample1.imag() * sample0.imag();
+    float dQ = sample1.imag() * sample0.real() - sample1.real() * sample0.imag();
+    float phase_diff = atan2f(dQ, dI);
+
+    return phase_diff;
+}
+
+inline uint32_t BTLERxProcessor::crc_init_reorder(uint32_t crc_init) {
     int i;
     uint32_t crc_init_tmp, crc_init_input, crc_init_input_tmp;
 
@@ -53,7 +62,7 @@ uint32_t BTLERxProcessor::crc_init_reorder(uint32_t crc_init) {
     return (crc_init_tmp);
 }
 
-uint_fast32_t BTLERxProcessor::crc_update(uint_fast32_t crc, const void* data, size_t data_len) {
+inline uint_fast32_t BTLERxProcessor::crc_update(uint_fast32_t crc, const void* data, size_t data_len) {
     const unsigned char* d = (const unsigned char*)data;
     unsigned int tbl_idx;
 
@@ -67,7 +76,7 @@ uint_fast32_t BTLERxProcessor::crc_update(uint_fast32_t crc, const void* data, s
     return crc & 0xffffff;
 }
 
-uint_fast32_t BTLERxProcessor::crc24_byte(uint8_t* byte_in, int num_byte, uint32_t init_hex) {
+inline uint_fast32_t BTLERxProcessor::crc24_byte(uint8_t* byte_in, int num_byte, uint32_t init_hex) {
     uint_fast32_t crc = init_hex;
 
     crc = crc_update(crc, byte_in, num_byte);
@@ -75,7 +84,7 @@ uint_fast32_t BTLERxProcessor::crc24_byte(uint8_t* byte_in, int num_byte, uint32
     return (crc);
 }
 
-bool BTLERxProcessor::crc_check(uint8_t* tmp_byte, int body_len, uint32_t crc_init) {
+inline bool BTLERxProcessor::crc_check(uint8_t* tmp_byte, int body_len, uint32_t crc_init) {
     int crc24_checksum;
 
     crc24_checksum = crc24_byte(tmp_byte, body_len, crc_init);  // 0x555555 --> 0xaaaaaa. maybe because byte order
@@ -87,7 +96,7 @@ bool BTLERxProcessor::crc_check(uint8_t* tmp_byte, int body_len, uint32_t crc_in
     return (crc24_checksum != checksumReceived);
 }
 
-void BTLERxProcessor::scramble_byte(uint8_t* byte_in, int num_byte, const uint8_t* scramble_table_byte, uint8_t* byte_out) {
+inline void BTLERxProcessor::scramble_byte(uint8_t* byte_in, int num_byte, const uint8_t* scramble_table_byte, uint8_t* byte_out) {
     int i;
 
     for (i = 0; i < num_byte; i++) {
@@ -95,7 +104,7 @@ void BTLERxProcessor::scramble_byte(uint8_t* byte_in, int num_byte, const uint8_
     }
 }
 
-int BTLERxProcessor::verify_payload_byte(int num_payload_byte, ADV_PDU_TYPE pdu_type) {
+inline int BTLERxProcessor::verify_payload_byte(int num_payload_byte, ADV_PDU_TYPE pdu_type) {
     // Should at least have 6 bytes for the MAC Address.
     // Also ensuring that there is at least 1 byte of data.
     if (num_payload_byte <= 6) {
@@ -122,120 +131,125 @@ int BTLERxProcessor::verify_payload_byte(int num_payload_byte, ADV_PDU_TYPE pdu_
     return 0;
 }
 
-void BTLERxProcessor::handleBeginState() {
-    int num_symbol_left = dst_buffer.count / SAMPLE_PER_SYMBOL;  // One buffer sample consist of I and Q.
+inline void BTLERxProcessor::resetOffsetTracking() {
+    frequency_offset = 0.0f;
+    frequency_offset_estimate = 0.0f;
+    phase_buffer_index = 0;
+    memset(phase_buffer, 0, sizeof(phase_buffer));
+}
 
-    static uint8_t demod_buf_access[SAMPLE_PER_SYMBOL][LEN_DEMOD_BUF_ACCESS];
+inline void BTLERxProcessor::resetBitPacketIndex() {
+    memset(rb_buf, 0, sizeof(rb_buf));
+    packet_index = 0;
+    bit_index = 0;
+}
 
-    uint32_t uint32_tmp = DEFAULT_ACCESS_ADDR;
-    uint8_t accessAddrBits[LEN_DEMOD_BUF_ACCESS];
+inline void BTLERxProcessor::resetToDefaultState() {
+    parseState = Parse_State_Begin;
+    resetOffsetTracking();
+    resetBitPacketIndex();
+    crc_init_internal = crc_init_reorder(crc_initalVale);
+}
 
-    uint32_t accesssAddress = 0;
+inline void BTLERxProcessor::demodulateFSKBits(int num_demod_byte) {
+    for (; packet_index < num_demod_byte; packet_index++) {
+        for (; bit_index < 8; bit_index++) {
+            if (samples_eaten >= (int)dst_buffer.count) {
+                return;
+            }
 
-    // Filling up addressBits with the access address we are looking to find.
-    for (int i = 0; i < 32; i++) {
-        accessAddrBits[i] = 0x01 & uint32_tmp;
-        uint32_tmp = (uint32_tmp >> 1);
+            float phaseSum = 0.0f;
+            for (int k = 0; k < SAMPLE_PER_SYMBOL; ++k) {
+                float phase = get_phase_diff(
+                    dst_buffer.p[samples_eaten + k],
+                    dst_buffer.p[samples_eaten + k + 1]);
+                phaseSum += phase;
+            }
+
+            // phaseSum /= (SAMPLE_PER_SYMBOL);
+            // phaseSum -= frequency_offset;
+
+            /*
+            alternate method. faster, but less precise. with this, you need to check against this: if (samples_eaten >= (int)dst_buffer.count + SAMPLE_PER_SYMBOL)  (not so good...)
+                        int I0 = dst_buffer.p[samples_eaten].real();
+                        int Q0 = dst_buffer.p[samples_eaten].imag();
+                        int I1 = dst_buffer.p[samples_eaten + 1 * SAMPLE_PER_SYMBOL].real();
+                        int Q1 = dst_buffer.p[samples_eaten + 1 * SAMPLE_PER_SYMBOL].imag();
+                        bool bitDecision = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
+            */
+
+            bool bitDecision = (phaseSum > 0.0f);
+            rb_buf[packet_index] = rb_buf[packet_index] | (bitDecision << bit_index);
+
+            samples_eaten += SAMPLE_PER_SYMBOL;
+        }
+
+        bit_index = 0;
     }
+}
+
+inline void BTLERxProcessor::handleBeginState() {
+    uint32_t validAccessAddress = DEFAULT_ACCESS_ADDR;
+    static uint32_t accesssAddress = 0;
 
-    const int demod_buf_len = LEN_DEMOD_BUF_ACCESS;  // For AA
-    int demod_buf_offset = 0;
     int hit_idx = (-1);
-    bool unequal_flag = false;
 
-    memset(demod_buf_access, 0, SAMPLE_PER_SYMBOL * demod_buf_len);
-
-    for (int i = 0; i < num_symbol_left * SAMPLE_PER_SYMBOL; i += SAMPLE_PER_SYMBOL) {
-        int sp = ((demod_buf_offset - demod_buf_len + 1) & (demod_buf_len - 1));
+    for (int i = samples_eaten; i < (int)dst_buffer.count; i += SAMPLE_PER_SYMBOL) {
+        float phaseDiff = 0;
 
         for (int j = 0; j < SAMPLE_PER_SYMBOL; j++) {
-            // Sample and compare with the adjacent next sample.
-            int I0 = dst_buffer.p[i + j].real();
-            int Q0 = dst_buffer.p[i + j].imag();
-            int I1 = dst_buffer.p[i + j + 1].real();
-            int Q1 = dst_buffer.p[i + j + 1].imag();
-
-            int phase_idx = j;
-
-            demod_buf_access[phase_idx][demod_buf_offset] = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
-
-            int k = sp;
-            unequal_flag = false;
-
-            accesssAddress = 0;
-
-            for (int p = 0; p < demod_buf_len; p++) {
-                if (demod_buf_access[phase_idx][k] != accessAddrBits[p]) {
-                    unequal_flag = true;
-                    hit_idx = (-1);
-                    break;
-                }
-
-                accesssAddress = (accesssAddress & (~(1 << p))) | (demod_buf_access[phase_idx][k] << p);
-
-                k = ((k + 1) & (demod_buf_len - 1));
-            }
-
-            if (unequal_flag == false) {
-                hit_idx = (i + j - (demod_buf_len - 1) * SAMPLE_PER_SYMBOL);
-                break;
-            }
+            phaseDiff += get_phase_diff(dst_buffer.p[i + j], dst_buffer.p[i + j + 1]);
         }
 
-        if (unequal_flag == false) {
+        // disabled, due to not used anywhere
+        /* phase_buffer[phase_buffer_index] = phaseDiff / (SAMPLE_PER_SYMBOL);
+        phase_buffer_index = (phase_buffer_index + 1) % ROLLING_WINDOW;
+        */
+
+        bool bitDecision = (phaseDiff > 0);
+
+        accesssAddress = (accesssAddress >> 1 | (bitDecision << 31));
+
+        int errors = __builtin_popcount(accesssAddress ^ validAccessAddress) & 0xFFFFFFFF;
+
+        if (!errors) {
+            hit_idx = i + SAMPLE_PER_SYMBOL;
+
+            // disabled, due to not used anywhere
+            /* for (int k = 0; k < ROLLING_WINDOW; k++) {
+                frequency_offset_estimate += phase_buffer[k];
+            }
+            frequency_offset = frequency_offset_estimate / ROLLING_WINDOW;
+            */
+
             break;
         }
-
-        demod_buf_offset = ((demod_buf_offset + 1) & (demod_buf_len - 1));
     }
 
     if (hit_idx == -1) {
         // Process more samples.
+        samples_eaten = (int)dst_buffer.count + 1;
         return;
     }
 
-    symbols_eaten += hit_idx;
-
-    symbols_eaten += (8 * NUM_ACCESS_ADDR_BYTE * SAMPLE_PER_SYMBOL);  // move to the beginning of PDU header
-
-    num_symbol_left = num_symbol_left - symbols_eaten;
+    samples_eaten += hit_idx;
 
     parseState = Parse_State_PDU_Header;
 }
 
-void BTLERxProcessor::handlePDUHeaderState() {
-    int num_demod_byte = 2;  // PDU header has 2 octets
-
-    symbols_eaten += 8 * num_demod_byte * SAMPLE_PER_SYMBOL;
-
-    if (symbols_eaten > (int)dst_buffer.count) {
+inline void BTLERxProcessor::handlePDUHeaderState() {
+    if (samples_eaten > (int)dst_buffer.count) {
         return;
     }
 
-    // Jump back down to the beginning of PDU header.
-    sample_idx = symbols_eaten - (8 * num_demod_byte * SAMPLE_PER_SYMBOL);
+    demodulateFSKBits(NUM_PDU_HEADER_BYTE);
 
-    packet_index = 0;
-
-    for (int i = 0; i < num_demod_byte; i++) {
-        rb_buf[packet_index] = 0;
-
-        for (int j = 0; j < 8; j++) {
-            int I0 = dst_buffer.p[sample_idx].real();
-            int Q0 = dst_buffer.p[sample_idx].imag();
-            int I1 = dst_buffer.p[sample_idx + 1].real();
-            int Q1 = dst_buffer.p[sample_idx + 1].imag();
-
-            bit_decision = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
-            rb_buf[packet_index] = rb_buf[packet_index] | (bit_decision << j);
-
-            sample_idx += SAMPLE_PER_SYMBOL;
-        }
-
-        packet_index++;
+    if (packet_index < NUM_PDU_HEADER_BYTE || bit_index != 0) {
+        resetToDefaultState();
+        return;
     }
 
-    scramble_byte(rb_buf, num_demod_byte, scramble_table[channel_number], rb_buf);
+    scramble_byte(rb_buf, 2, scramble_table[channel_number], rb_buf);
 
     pdu_type = (ADV_PDU_TYPE)(rb_buf[0] & 0x0F);
     // uint8_t tx_add = ((rb_buf[0] & 0x40) != 0);
@@ -244,38 +258,25 @@ void BTLERxProcessor::handlePDUHeaderState() {
 
     // Not a valid Advertise Payload.
     if ((payload_len < 6) || (payload_len > 37)) {
-        parseState = Parse_State_Begin;
+        resetToDefaultState();
         return;
     } else {
         parseState = Parse_State_PDU_Payload;
     }
 }
 
-void BTLERxProcessor::handlePDUPayloadState() {
-    int i;
-    int num_demod_byte = (payload_len + 3);
-    symbols_eaten += 8 * num_demod_byte * SAMPLE_PER_SYMBOL;
+inline void BTLERxProcessor::handlePDUPayloadState() {
+    const int num_demod_byte = (payload_len + 3);
 
-    if (symbols_eaten > (int)dst_buffer.count) {
+    if (samples_eaten > (int)dst_buffer.count) {
         return;
     }
 
-    for (i = 0; i < num_demod_byte; i++) {
-        rb_buf[packet_index] = 0;
+    demodulateFSKBits(num_demod_byte + NUM_PDU_HEADER_BYTE);
 
-        for (int j = 0; j < 8; j++) {
-            int I0 = dst_buffer.p[sample_idx].real();
-            int Q0 = dst_buffer.p[sample_idx].imag();
-            int I1 = dst_buffer.p[sample_idx + 1].real();
-            int Q1 = dst_buffer.p[sample_idx + 1].imag();
-
-            bit_decision = (I0 * Q1 - I1 * Q0) > 0 ? 1 : 0;
-            rb_buf[packet_index] = rb_buf[packet_index] | (bit_decision << j);
-
-            sample_idx += SAMPLE_PER_SYMBOL;
-        }
-
-        packet_index++;
+    if (packet_index < (num_demod_byte + NUM_PDU_HEADER_BYTE) || bit_index != 0) {
+        resetToDefaultState();
+        return;
     }
 
     scramble_byte(rb_buf + 2, num_demod_byte, scramble_table[channel_number] + 2, rb_buf + 2);
@@ -310,6 +311,8 @@ void BTLERxProcessor::handlePDUPayloadState() {
             // Skip Header Byte and MAC Address
             uint8_t startIndex = 8;
 
+            int i;
+
             for (i = 0; i < payload_len - 6; i++) {
                 blePacketData.data[i] = rb_buf[startIndex++];
             }
@@ -322,46 +325,50 @@ void BTLERxProcessor::handlePDUPayloadState() {
         }
     }
 
-    parseState = Parse_State_Begin;
+    resetToDefaultState();
 }
 
 void BTLERxProcessor::execute(const buffer_c8_t& buffer) {
     if (!configured) return;
 
-    // Pulled this implementation from channel_stats_collector.c to time slice a specific packet's dB.
+    // a less computationally expensive method
+    max_dB = -128;
     uint32_t max_squared = 0;
-
+    int8_t imag = 0;
+    int8_t real = 0;
     void* src_p = buffer.p;
-
     while (src_p < &buffer.p[buffer.count]) {
         const uint32_t sample = *__SIMD32(src_p)++;
         const uint32_t mag_sq = __SMUAD(sample, sample);
         if (mag_sq > max_squared) {
             max_squared = mag_sq;
+            imag = ((complex8_t*)src_p)->imag();
+            real = ((complex8_t*)src_p)->real();
         }
     }
 
-    const float max_squared_f = max_squared;
-    max_dB = mag2_to_dbv_norm(max_squared_f * (1.0f / (32768.0f * 32768.0f)));
+    max_dB = mag2_to_dbm_8bit_normalized(real, imag, 1.0f, 50.0f);
 
     // 4Mhz 2048 samples
     // Decimated by 4 to achieve 2048/4 = 512 samples at 1 sample per symbol.
     decim_0.execute(buffer, dst_buffer);
     feed_channel_stats(dst_buffer);
 
-    symbols_eaten = 0;
+    samples_eaten = 0;
 
-    // Handle parsing based on parseState
-    if (parseState == Parse_State_Begin) {
-        handleBeginState();
-    }
+    while (samples_eaten < (int)dst_buffer.count) {
+        // Handle parsing based on parseState
+        if (parseState == Parse_State_Begin) {
+            handleBeginState();
+        }
 
-    if (parseState == Parse_State_PDU_Header) {
-        handlePDUHeaderState();
-    }
+        if (parseState == Parse_State_PDU_Header) {
+            handlePDUHeaderState();
+        }
 
-    if (parseState == Parse_State_PDU_Payload) {
-        handlePDUPayloadState();
+        if (parseState == Parse_State_PDU_Payload) {
+            handlePDUPayloadState();
+        }
     }
 }
 
@@ -372,11 +379,9 @@ void BTLERxProcessor::on_message(const Message* const message) {
 
 void BTLERxProcessor::configure(const BTLERxConfigureMessage& message) {
     channel_number = message.channel_number;
-    decim_0.configure(taps_BTLE_1M_PHY_decim_0.taps);
+    decim_0.configure(taps_BTLE_Dual_PHY.taps);
 
     configured = true;
-
-    crc_init_internal = crc_init_reorder(crc_initalVale);
 }
 
 int main() {

firmware/baseband/proc_btlerx.hpp

@@ -47,6 +47,8 @@ class BTLERxProcessor : public BasebandProcessor {
     static constexpr int LEN_DEMOD_BUF_ACCESS{32};
     static constexpr uint32_t DEFAULT_ACCESS_ADDR{0x8E89BED6};
     static constexpr int NUM_ACCESS_ADDR_BYTE{4};
+    static constexpr int NUM_PDU_HEADER_BYTE{2};
+    static constexpr int ROLLING_WINDOW{32};
 
     enum Parse_State {
         Parse_State_Begin = 0,
@@ -81,8 +83,8 @@ class BTLERxProcessor : public BasebandProcessor {
     };
 
     static constexpr size_t baseband_fs = 4000000;
-    static constexpr size_t audio_fs = baseband_fs / 8 / 8 / 2;
 
+    float get_phase_diff(const complex16_t& sample0, const complex16_t& sample1);
     uint_fast32_t crc_update(uint_fast32_t crc, const void* data, size_t data_len);
     uint_fast32_t crc24_byte(uint8_t* byte_in, int num_byte, uint32_t init_hex);
     bool crc_check(uint8_t* tmp_byte, int body_len, uint32_t crc_init);
@@ -95,6 +97,12 @@ class BTLERxProcessor : public BasebandProcessor {
     // void demod_byte(int num_byte, uint8_t *out_byte);
     int verify_payload_byte(int num_payload_byte, ADV_PDU_TYPE pdu_type);
 
+    void resetOffsetTracking();
+    void resetBitPacketIndex();
+    void resetToDefaultState();
+
+    void demodulateFSKBits(int num_demod_byte);
+
     void handleBeginState();
     void handlePDUHeaderState();
     void handlePDUPayloadState();
@@ -120,13 +128,18 @@ class BTLERxProcessor : public BasebandProcessor {
     BlePacketData blePacketData{};
 
     Parse_State parseState{Parse_State_Begin};
-    uint16_t packet_index{0};
-    int sample_idx{0};
-    int symbols_eaten{0};
+    int samples_eaten{0};
     uint8_t bit_decision{0};
     uint8_t payload_len{0};
     uint8_t pdu_type{0};
     int32_t max_dB{0};
+    uint16_t packet_index{0};
+    uint8_t bit_index{0};
+
+    float frequency_offset_estimate{0.0f};
+    float frequency_offset{0.0f};
+    float phase_buffer[ROLLING_WINDOW] = {0.0f};
+    int phase_buffer_index = 0;
 
     /* NB: Threads should be the last members in the class definition. */
     BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};

firmware/baseband/proc_epirb.cpp

@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2024 EPIRB Receiver Implementation
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "proc_epirb.hpp"
+
+#include "portapack_shared_memory.hpp"
+
+#include "dsp_fir_taps.hpp"
+
+#include "event_m4.hpp"
+#include <ch.h>
+
+EPIRBProcessor::EPIRBProcessor() {
+    // Configure the decimation filters for narrowband EPIRB signal
+    // Target: Reduce 2.457600 MHz to ~38.4 kHz for 400 bps processing
+    decim_0.configure(taps_11k0_decim_0.taps);
+    decim_1.configure(taps_11k0_decim_1.taps);
+    baseband_thread.start();
+}
+
+void EPIRBProcessor::execute(const buffer_c8_t& buffer) {
+    /* 2.4576MHz, 2048 samples */
+
+    // First decimation stage: 2.4576 MHz -> 307.2 kHz
+    const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
+
+    // Second decimation stage: 307.2 kHz -> 38.4 kHz
+    const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
+    const auto decimator_out = decim_1_out;
+
+    /* 38.4kHz, 32 samples (approximately) */
+    feed_channel_stats(decimator_out);
+
+    // Process each decimated sample through the matched filter
+    for (size_t i = 0; i < decimator_out.count; i++) {
+        // Apply matched filter for BPSK demodulation
+        if (mf.execute_once(decimator_out.p[i])) {
+            // Feed symbol to clock recovery when matched filter triggers
+            clock_recovery(mf.get_output());
+        }
+    }
+}
+
+void EPIRBProcessor::consume_symbol(const float raw_symbol) {
+    // BPSK demodulation: positive = 1, negative = 0
+    const uint_fast8_t sliced_symbol = (raw_symbol >= 0.0f) ? 1 : 0;
+
+    // Decode bi-phase L encoding manually
+    // In bi-phase L: 0 = no transition, 1 = transition
+    // This is a simple edge detector
+    const auto decoded_symbol = sliced_symbol ^ last_symbol;
+    last_symbol = sliced_symbol;
+
+    // Build packet from decoded symbols
+    packet_builder.execute(decoded_symbol);
+}
+
+void EPIRBProcessor::payload_handler(const baseband::Packet& packet) {
+    // EPIRB packet received - validate and process
+    if (packet.size() >= 112) {  // Minimum EPIRB data payload size (112 bits)
+        packets_received++;
+        last_packet_timestamp = Timestamp::now();
+
+        // Create and send EPIRB packet message to application layer
+        const EPIRBPacketMessage message{packet};
+        shared_memory.application_queue.push(message);
+    }
+}
+
+void EPIRBProcessor::on_message(const Message* const message) {
+}
+
+int main() {
+    EventDispatcher event_dispatcher{std::make_unique<EPIRBProcessor>()};
+    event_dispatcher.run();
+    return 0;
+}

firmware/baseband/proc_epirb.hpp

@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2024 EPIRB Receiver Implementation
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __PROC_EPIRB_H__
+#define __PROC_EPIRB_H__
+
+#include <cstdint>
+#include <cstddef>
+#include <array>
+#include <complex>
+
+#include "baseband_processor.hpp"
+#include "baseband_thread.hpp"
+#include "rssi_thread.hpp"
+#include "channel_decimator.hpp"
+#include "matched_filter.hpp"
+#include "clock_recovery.hpp"
+#include "symbol_coding.hpp"
+#include "packet_builder.hpp"
+#include "baseband_packet.hpp"
+#include "message.hpp"
+#include "buffer.hpp"
+
+// Forward declarations for types only used as pointers/references
+class Message;
+namespace baseband {
+class Packet;
+}
+
+// EPIRB 406 MHz Emergency Position Indicating Radio Beacon
+// Signal characteristics:
+// - Frequency: 406.025 - 406.028 MHz (typically 406.028 MHz)
+// - Modulation: BPSK (Binary Phase Shift Keying)
+// - Data rate: 400 bps
+// - Encoding: Bi-phase L (Manchester)
+// - Transmission: Every 50 seconds ± 2.5 seconds
+// - Power: 5W ± 2dB
+// - Message length: 144 bits (including sync pattern)
+
+// Matched filter for BPSK demodulation at 400 bps
+// Using raised cosine filter taps optimized for 400 bps BPSK
+static constexpr std::array<std::complex<float>, 64> bpsk_taps = {{// Raised cosine filter coefficients for BPSK 400 bps
+                                                                   -5, -8, -12, -15, -17, -17, -15, -11,
+                                                                   -5, 2, 11, 20, 29, 37, 43, 47,
+                                                                   48, 46, 42, 35, 26, 16, 4, -8,
+                                                                   -21, -33, -44, -53, -59, -62, -62, -58,
+                                                                   -51, -41, -28, -13, 3, 19, 36, 51,
+                                                                   64, 74, 80, 82, 80, 74, 64, 51,
+                                                                   36, 19, 3, -13, -28, -41, -51, -58,
+                                                                   -62, -62, -59, -53, -44, -33, -21, -8}};
+
+class EPIRBProcessor : public BasebandProcessor {
+   public:
+    EPIRBProcessor();
+
+    void execute(const buffer_c8_t& buffer) override;
+
+    void on_message(const Message* const message) override;
+
+   private:
+    // EPIRB operates at 406 MHz with narrow bandwidth
+    static constexpr size_t baseband_fs = 2457600;
+    static constexpr uint32_t epirb_center_freq = 406028000;  // 406.028 MHz
+    static constexpr uint32_t symbol_rate = 400;              // 400 bps
+    static constexpr size_t decimation_factor = 64;           // Decimate to ~38.4kHz
+
+    std::array<complex16_t, 512> dst{};
+    const buffer_c16_t dst_buffer{
+        dst.data(),
+        dst.size()};
+
+    // Decimation chain for 406 MHz EPIRB signal processing
+    dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
+    dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
+
+    dsp::matched_filter::MatchedFilter mf{bpsk_taps, 2};
+
+    // Clock recovery for 400 bps symbol rate
+    // Sampling rate after decimation: ~38.4kHz
+    // Symbols per sample: 38400 / 400 = 96 samples per symbol
+    clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery{
+        38400,      // sampling_rate
+        400,        // symbol_rate (400 bps)
+        {0.0555f},  // error_filter coefficient
+        [this](const float symbol) { this->consume_symbol(symbol); }};
+
+    // Simple bi-phase L decoder state
+    uint_fast8_t last_symbol = 0;
+
+    // EPIRB packet structure:
+    // - Sync pattern: 000101010101... (15 bits)
+    // - Frame sync: 0111110 (7 bits)
+    // - Data: 112 bits
+    // - BCH error correction: 10 bits
+    // Total: 144 bits
+    PacketBuilder<BitPattern, BitPattern, BitPattern> packet_builder{
+        {0b010101010101010, 15, 1},  // Preamble pattern
+        {0b0111110, 7},              // Frame sync pattern
+        {0b0111110, 7},              // End pattern (same as sync for simplicity)
+        [this](const baseband::Packet& packet) {
+            this->payload_handler(packet);
+        }};
+
+    void consume_symbol(const float symbol);
+    void payload_handler(const baseband::Packet& packet);
+
+    // Statistics
+    uint32_t packets_received = 0;
+    Timestamp last_packet_timestamp{};
+
+    /* NB: Threads should be the last members in the class definition. */
+    BasebandThread baseband_thread{
+        baseband_fs, this, baseband::Direction::Receive, /*auto_start*/ false};
+    RSSIThread rssi_thread{};
+};
+
+#endif /*__PROC_EPIRB_H__*/

firmware/baseband/proc_fsk_rx.cpp

@@ -24,6 +24,7 @@
  */
 
 #include "proc_fsk_rx.hpp"
+#include "dsp_decimate.hpp"
 
 #include "event_m4.hpp"
 
@@ -32,135 +33,253 @@
 #include <cstdint>
 #include <cstddef>
 
-using namespace std;
-using namespace dsp::decimate;
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
 
-namespace {
-/* Count of bits that differ between the two values. */
-uint8_t diff_bit_count(uint32_t left, uint32_t right) {
-    uint32_t diff = left ^ right;
-    uint8_t count = 0;
-    for (size_t i = 0; i < sizeof(diff) * 8; ++i) {
-        if (((diff >> i) & 0x1) == 1)
-            ++count;
+float FSKRxProcessor::detect_peak_power(const buffer_c8_t& buffer, int N) {
+    int32_t power = 0;
+
+    // Initial window power
+    for (int i = 0; i < N; i++) {
+        int16_t i_sample = buffer.p[i].real();
+        int16_t q_sample = buffer.p[i].imag();
+        power += i_sample * i_sample + q_sample * q_sample;
     }
 
-    return count;
-}
-}  // namespace
+    power = power / N;
 
-/* AudioNormalizer ***************************************/
+    // Convert to dB over noise floor
+    float power_db = 10.0f * log10f((float)power / noise_floor);
 
-void AudioNormalizer::execute_in_place(const buffer_f32_t& audio) {
-    // Decay min/max every second (@24kHz).
-    if (counter_ >= 24'000) {
-        // 90% decay factor seems to work well.
-        // This keeps large transients from wrecking the filter.
-        max_ *= 0.9f;
-        min_ *= 0.9f;
-        counter_ = 0;
-        calculate_thresholds();
-    }
+    // If too weak, treat as no signal
+    if (power_db <= 0.0f) return 0;
 
-    counter_ += audio.count;
-
-    for (size_t i = 0; i < audio.count; ++i) {
-        auto& val = audio.p[i];
-
-        if (val > max_) {
-            max_ = val;
-            calculate_thresholds();
-        }
-        if (val < min_) {
-            min_ = val;
-            calculate_thresholds();
-        }
-
-        if (val >= t_hi_)
-            val = 1.0f;
-        else if (val <= t_lo_)
-            val = -1.0f;
-        else
-            val = 0.0;
-    }
+    return power_db;
 }
 
-void AudioNormalizer::calculate_thresholds() {
-    auto center = (max_ + min_) / 2.0f;
-    auto range = (max_ - min_) / 2.0f;
+void FSKRxProcessor::agc_correct_iq(const buffer_c8_t& buffer, int N, float measured_power) {
+    float power_db = 10.0f * log10f(measured_power / noise_floor);
+    float error_db = target_power_db - power_db;
 
-    // 10% off center force either +/-1.0f.
-    // Higher == larger dead zone.
-    // Lower == more false positives.
-    auto threshold = range * 0.1;
-    t_hi_ = center + threshold;
-    t_lo_ = center - threshold;
-}
-
-/* FSKRxProcessor ******************************************/
-
-void FSKRxProcessor::clear_data_bits() {
-    data = 0;
-    bit_count = 0;
-}
-
-void FSKRxProcessor::handle_sync(bool inverted) {
-    clear_data_bits();
-    has_sync_ = true;
-    inverted = inverted;
-    word_count = 0;
-}
-
-void FSKRxProcessor::process_bits(const buffer_c8_t& buffer) {
-    // Process all of the bits in the bits queue.
-    while (buffer.count > 0) {
-        // Wait until data_ is full.
-        if (bit_count < data_bit_count)
-            continue;
-
-        // Wait for the sync frame.
-        if (!has_sync_) {
-            if (diff_bit_count(data, sync_codeword) <= 2)
-                handle_sync(/*inverted=*/false);
-            else if (diff_bit_count(data, ~sync_codeword) <= 2)
-                handle_sync(/*inverted=*/true);
-            continue;
-        }
-    }
-}
-
-/* FSKRxProcessor ***************************************/
-
-FSKRxProcessor::FSKRxProcessor() {
-}
-
-void FSKRxProcessor::execute(const buffer_c8_t& buffer) {
-    if (!configured) {
+    if (error_db <= 0) {
         return;
     }
 
-    // Decimate by current decim 0 and decim 1.
+    float gain_scalar = powf(10.0f, error_db / 20.0f);
+
+    for (int i = 0; i < N; i++) {
+        buffer.p[i] = {(int8_t)(buffer.p[i].real() * gain_scalar), (int8_t)(buffer.p[i].imag() * gain_scalar)};
+    }
+}
+
+float FSKRxProcessor::get_phase_diff(const complex16_t& sample0, const complex16_t& sample1) {
+    // Calculate the phase difference between two samples.
+    float dI = sample1.real() * sample0.real() + sample1.imag() * sample0.imag();
+    float dQ = sample1.imag() * sample0.real() - sample1.real() * sample0.imag();
+    float phase_diff = atan2f(dQ, dI);
+
+    return phase_diff;
+}
+
+void FSKRxProcessor::demodulateFSKBits(const buffer_c16_t& decimator_out, int num_demod_byte) {
+    for (; packet_index < num_demod_byte; packet_index++) {
+        for (; bit_index < 8; bit_index++) {
+            if (samples_eaten >= (int)decimator_out.count) {
+                return;
+            }
+
+            float phaseSum = 0.0f;
+            for (int k = 0; k < SAMPLE_PER_SYMBOL - 1; ++k) {
+                float phase = get_phase_diff(
+                    decimator_out.p[samples_eaten + k],
+                    decimator_out.p[samples_eaten + k + 1]);
+                phaseSum += phase;
+            }
+
+            phaseSum /= (SAMPLE_PER_SYMBOL - 1);
+            phaseSum -= frequency_offset;
+
+            bool bitDecision = (phaseSum > 0.0f);
+
+            rb_buf[packet_index] |= (bitDecision << (7 - bit_index));
+
+            samples_eaten += SAMPLE_PER_SYMBOL;
+        }
+
+        bit_index = 0;
+    }
+}
+
+void FSKRxProcessor::resetPreambleTracking() {
+    frequency_offset = 0.0f;
+    frequency_offset_estimate = 0.0f;
+    phase_buffer_index = 0;
+    memset(phase_buffer, 0, sizeof(phase_buffer));
+}
+
+void FSKRxProcessor::resetBitPacketIndex() {
+    packet_index = 0;
+    bit_index = 0;
+}
+
+void FSKRxProcessor::resetToDefaultState() {
+    parseState = Parse_State_Wait_For_Peak;
+    peak_timeout = 0;
+    fskPacketData.power = 0.0f;
+    resetPreambleTracking();
+    resetBitPacketIndex();
+}
+
+void FSKRxProcessor::handlePreambleState(const buffer_c16_t& decimator_out) {
+    const uint32_t validPreamble = DEFAULT_PREAMBLE;
+    static uint32_t preambleValue = 0;
+
+    int hit_idx = -1;
+
+    for (; samples_eaten < (int)decimator_out.count; samples_eaten += SAMPLE_PER_SYMBOL) {
+        float phaseSum = 0.0f;
+
+        for (int j = 0; j < SAMPLE_PER_SYMBOL - 1; j++) {
+            phaseSum += get_phase_diff(decimator_out.p[samples_eaten + j], decimator_out.p[samples_eaten + j + 1]);
+        }
+
+        phase_buffer[phase_buffer_index] = phaseSum / (SAMPLE_PER_SYMBOL - 1);
+        phase_buffer_index = (phase_buffer_index + 1) % ROLLING_WINDOW;
+
+        bool bitDecision = (phaseSum > 0.0f);
+        preambleValue = (preambleValue << 1) | bitDecision;
+
+        int errors = __builtin_popcountl(preambleValue ^ validPreamble) & 0xFFFFFFFF;
+
+        if (errors == 0) {
+            hit_idx = samples_eaten + SAMPLE_PER_SYMBOL;
+            fskPacketData.syncWord = preambleValue;
+            fskPacketData.max_dB = max_dB;
+
+            for (int k = 0; k < ROLLING_WINDOW; k++) {
+                frequency_offset_estimate += phase_buffer[k];
+            }
+
+            frequency_offset = frequency_offset_estimate / ROLLING_WINDOW;
+
+            fskPacketData.frequency_offset_hz = (frequency_offset * demod_input_fs) / (2.0f * M_PI);
+
+            preambleValue = 0;
+            break;
+        }
+    }
+
+    if (hit_idx == -1) {
+        samples_eaten = samples_eaten;
+        return;
+    }
+
+    samples_eaten = hit_idx;
+    parseState = Parse_State_Sync;
+}
+
+void FSKRxProcessor::handleSyncWordState(const buffer_c16_t& decimator_out) {
+    const int syncword_bytes = 4;
+    const uint32_t validSyncWord = DEFAULT_SYNC_WORD;
+
+    if ((int)decimator_out.count - samples_eaten <= 0) {
+        return;
+    }
+
+    demodulateFSKBits(decimator_out, syncword_bytes);
+
+    if (packet_index < syncword_bytes || bit_index != 0) {
+        return;
+    }
+
+    uint32_t receivedSyncWord = (rb_buf[0] << 24) | (rb_buf[1] << 16) | (rb_buf[2] << 8) | rb_buf[3];
+
+    int errors = __builtin_popcountl(receivedSyncWord ^ validSyncWord) & 0xFFFFFFFF;
+
+    if (errors <= 3) {
+        fskPacketData.syncWord = receivedSyncWord;
+        parseState = Parse_State_PDU_Payload;
+        memset(fskPacketData.data, 0, sizeof(fskPacketData.data));
+    } else {
+        resetToDefaultState();
+    }
+
+    memset(rb_buf, 0, sizeof(rb_buf));
+    resetBitPacketIndex();
+}
+
+void FSKRxProcessor::handlePDUPayloadState(const buffer_c16_t& decimator_out) {
+    if ((int)decimator_out.count - samples_eaten <= 0) {
+        return;
+    }
+
+    demodulateFSKBits(decimator_out, NUM_DATA_BYTE);
+
+    if (packet_index < NUM_DATA_BYTE || bit_index != 0) {
+        return;
+    }
+
+    fskPacketData.dataLen = NUM_DATA_BYTE;
+
+    // Copy the decoded bits to the packet data
+    for (int i = 0; i < NUM_DATA_BYTE; i++) {
+        fskPacketData.data[i] |= rb_buf[i];
+    }
+
+    FSKRxPacketMessage data_message{&fskPacketData};
+    shared_memory.application_queue.push(data_message);
+
+    memset(rb_buf, 0, sizeof(rb_buf));
+
+    resetToDefaultState();
+}
+
+void FSKRxProcessor::execute(const buffer_c8_t& buffer) {
+    if (!configured || parseState == Parse_State_Parsing_Data) return;
+
     const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
     const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
 
     feed_channel_stats(decim_1_out);
 
-    spectrum_samples += decim_1_out.count;
+    samples_eaten = 0;
 
-    if (spectrum_samples >= spectrum_interval_samples) {
-        spectrum_samples -= spectrum_interval_samples;
-        channel_spectrum.feed(decim_1_out, channel_filter_low_f,
-                              channel_filter_high_f, channel_filter_transition);
-    }
+    while ((int)decim_1_out.count - samples_eaten > 0) {
+        if ((parseState == Parse_State_Wait_For_Peak) || (parseState == Parse_State_Preamble)) {
+            float power = detect_peak_power(buffer, buffer.count);
 
-    // process_bits();
+            if (power) {
+                parseState = Parse_State_Preamble;
+                agc_power = power;
+                fskPacketData.power = power;
+            } else {
+                break;
+            }
+        }
 
-    // Update the status.
-    samples_processed += buffer.count;
+        if (agc_power) {
+            agc_correct_iq(buffer, buffer.count, agc_power);
+        }
 
-    if (samples_processed >= stat_update_threshold) {
-        // send_packet(data);
-        samples_processed -= stat_update_threshold;
+        if (parseState == Parse_State_Preamble) {
+            peak_timeout++;
+
+            // 960,000 fs / 2048 samples = 468.75 Hz, so 55 calls is about 0.053 seconds before timeout.
+            if (peak_timeout == 4) {
+                resetToDefaultState();
+            } else {
+                handlePreambleState(decim_1_out);
+            }
+        }
+
+        if (parseState == Parse_State_Sync) {
+            handleSyncWordState(decim_1_out);
+        }
+
+        if (parseState == Parse_State_PDU_Payload) {
+            handlePDUPayloadState(decim_1_out);
+        }
     }
 }
 
@@ -171,7 +290,7 @@ void FSKRxProcessor::on_message(const Message* const message) {
             break;
         case Message::ID::UpdateSpectrum:
         case Message::ID::SpectrumStreamingConfig:
-            channel_spectrum.on_message(message);
+            // channel_spectrum.on_message(message);
             break;
 
         case Message::ID::SampleRateConfig:
@@ -179,7 +298,7 @@ void FSKRxProcessor::on_message(const Message* const message) {
             break;
 
         case Message::ID::CaptureConfig:
-            capture_config(*reinterpret_cast<const CaptureConfigMessage*>(message));
+            // capture_config(*reinterpret_cast<const CaptureConfigMessage*>(message));
             break;
 
         default:
@@ -188,83 +307,65 @@ void FSKRxProcessor::on_message(const Message* const message) {
 }
 
 void FSKRxProcessor::configure(const FSKRxConfigureMessage& message) {
-    // Extract message variables.
-    deviation = message.deviation;
-    channel_decimation = message.channel_decimation;
-    // channel_filter_taps = message.channel_filter;
-
-    channel_spectrum.set_decimation_factor(1);
-}
-
-void FSKRxProcessor::capture_config(const CaptureConfigMessage& message) {
-    if (message.config) {
-        audio_output.set_stream(std::make_unique<StreamInput>(message.config));
-    } else {
-        audio_output.set_stream(nullptr);
-    }
+    SAMPLE_PER_SYMBOL = message.samplesPerSymbol;
+    DEFAULT_SYNC_WORD = message.syncWord;
+    NUM_SYNC_WORD_BYTE = message.syncWordLength;
+    DEFAULT_PREAMBLE = message.preamble;
+    NUM_PREAMBLE_BYTE = message.preambleLength;
+    NUM_DATA_BYTE = message.numDataBytes;
 }
 
 void FSKRxProcessor::sample_rate_config(const SampleRateConfigMessage& message) {
     const auto sample_rate = message.sample_rate;
 
-    // The actual sample rate is the requested rate * the oversample rate.
-    // See oversample.hpp for more details on oversampling.
     baseband_fs = sample_rate * toUType(message.oversample_rate);
     baseband_thread.set_sampling_rate(baseband_fs);
 
-    // TODO: Do we need to use the taps that the decimators get configured with?
     channel_filter_low_f = taps_200k_decim_1.low_frequency_normalized * sample_rate;
     channel_filter_high_f = taps_200k_decim_1.high_frequency_normalized * sample_rate;
     channel_filter_transition = taps_200k_decim_1.transition_normalized * sample_rate;
 
-    // Compute the scalar that corrects the oversample_rate to be x8 when computing
-    // the spectrum update interval. The original implementation only supported x8.
-    // TODO: Why is this needed here but not in proc_replay? There must be some other
-    // assumption about x8 oversampling in some component that makes this necessary.
     const auto oversample_correction = toUType(message.oversample_rate) / 8.0;
 
     // The spectrum update interval controls how often the waterfall is fed new samples.
     spectrum_interval_samples = sample_rate / (spectrum_rate_hz * oversample_correction);
     spectrum_samples = 0;
 
-    // For high sample rates, the M4 is busy collecting samples so the
-    // waterfall runs slower. Reduce the update interval so it runs faster.
-    // NB: Trade off: looks nicer, but more frequent updates == more CPU.
     if (sample_rate >= 1'500'000)
         spectrum_interval_samples /= (sample_rate / 750'000);
 
     switch (message.oversample_rate) {
         case OversampleRate::x4:
             // M4 can't handle 2 decimation passes for sample rates needing x4.
-            decim_0.set<FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
+            decim_0.set<dsp::decimate::FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
             decim_1.set<NoopDecim>();
             break;
 
         case OversampleRate::x8:
             // M4 can't handle 2 decimation passes for sample rates <= 600k.
             if (message.sample_rate < 600'000) {
-                decim_0.set<FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
-                decim_1.set<FIRC16xR16x16Decim2>().configure(taps_200k_decim_1.taps);
+                decim_0.set<dsp::decimate::FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
+                decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(taps_200k_decim_1.taps);
             } else {
                 // Using 180k taps to provide better filtering with a single pass.
-                decim_0.set<FIRC8xR16x24FS4Decim8>().configure(taps_180k_wfm_decim_0.taps);
+                decim_0.set<dsp::decimate::FIRC8xR16x24FS4Decim8>().configure(taps_180k_wfm_decim_0.taps);
                 decim_1.set<NoopDecim>();
             }
             break;
 
         case OversampleRate::x16:
-            decim_0.set<FIRC8xR16x24FS4Decim8>().configure(taps_200k_decim_0.taps);
-            decim_1.set<FIRC16xR16x16Decim2>().configure(taps_200k_decim_1.taps);
+            decim_0.set<dsp::decimate::FIRC8xR16x24FS4Decim8>().configure(taps_200k_decim_0.taps);
+            decim_1.set<dsp::decimate::FIRC16xR16x16Decim2>().configure(taps_200k_decim_1.taps);
             break;
 
         case OversampleRate::x32:
-            decim_0.set<FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
-            decim_1.set<FIRC16xR16x32Decim8>().configure(taps_16k0_decim_1.taps);
+            decim_0.set<dsp::decimate::FIRC8xR16x24FS4Decim4>().configure(taps_200k_decim_0.taps);
+            decim_1.set<dsp::decimate::FIRC16xR16x32Decim8>().configure(taps_16k0_decim_1.taps);
             break;
 
         case OversampleRate::x64:
-            decim_0.set<FIRC8xR16x24FS4Decim8>().configure(taps_200k_decim_0.taps);
-            decim_1.set<FIRC16xR16x32Decim8>().configure(taps_16k0_decim_1.taps);
+            decim_0.set<dsp::decimate::FIRC8xR16x24FS4Decim8>().configure(taps_200k_decim_0.taps);
+            decim_1.set<dsp::decimate::FIRC16xR16x32Decim8>().configure(taps_16k0_decim_1.taps);
             break;
 
         default:
@@ -282,33 +383,12 @@ void FSKRxProcessor::sample_rate_config(const SampleRateConfigMessage& message)
     // size_t channel_filter_input_fs = decim_1_output_fs;
     // size_t channel_filter_output_fs = channel_filter_input_fs / channel_decimation;
 
-    size_t demod_input_fs = decim_1_output_fs;
-
-    send_packet((uint32_t)demod_input_fs);
+    demod_input_fs = decim_1_output_fs;
 
     // Set ready to process data.
     configured = true;
 }
 
-void FSKRxProcessor::flush() {
-    // word_extractor.flush();
-}
-
-void FSKRxProcessor::reset() {
-    clear_data_bits();
-    has_sync_ = false;
-    inverted = false;
-    word_count = 0;
-
-    samples_processed = 0;
-}
-
-void FSKRxProcessor::send_packet(uint32_t data) {
-    data_message.is_data = true;
-    data_message.value = data;
-    shared_memory.application_queue.push(data_message);
-}
-
 /* main **************************************************/
 
 int main() {

firmware/baseband/proc_fsk_rx.hpp

@@ -30,7 +30,6 @@
 
 #include "dsp_decimate.hpp"
 #include "dsp_demodulate.hpp"
-#include "dsp_iir_config.hpp"
 #include "dsp_fir_taps.hpp"
 
 #include "spectrum_collector.hpp"
@@ -46,21 +45,6 @@
 #include <cstdint>
 #include <functional>
 
-/* Normalizes audio stream to +/-1.0f */
-class AudioNormalizer {
-   public:
-    void execute_in_place(const buffer_f32_t& audio);
-
-   private:
-    void calculate_thresholds();
-
-    uint32_t counter_ = 0;
-    float min_ = 99.0f;
-    float max_ = -99.0f;
-    float t_hi_ = 1.0;
-    float t_lo_ = 1.0;
-};
-
 /* A decimator that just returns the source buffer. */
 class NoopDecim {
    public:
@@ -111,44 +95,92 @@ class MultiDecimator {
 
 class FSKRxProcessor : public BasebandProcessor {
    public:
-    FSKRxProcessor();
     void execute(const buffer_c8_t& buffer) override;
     void on_message(const Message* const message) override;
 
    private:
-    size_t baseband_fs = 1024000;  // aka: sample_rate
+    static constexpr int ROLLING_WINDOW{32};
+    static constexpr uint16_t MAX_BUFFER_SIZE{512};
+
+    enum Parse_State {
+        Parse_State_Wait_For_Peak = 0,
+        Parse_State_Preamble,
+        Parse_State_Sync,
+        Parse_State_PDU_Payload,
+        Parse_State_Parsing_Data
+    };
+
+    size_t baseband_fs = 960000;
     uint8_t stat_update_interval = 10;
     uint32_t stat_update_threshold = baseband_fs / stat_update_interval;
-    static constexpr auto spectrum_rate_hz = 50.0f;
+
+    float detect_peak_power(const buffer_c8_t& buffer, int N);
+    void agc_correct_iq(const buffer_c8_t& buffer, int N, float measured_power);
+    float get_phase_diff(const complex16_t& sample0, const complex16_t& sample1);
+    void demodulateFSKBits(const buffer_c16_t& decimator_out, int num_demod_byte);
+    void resetPreambleTracking();
+    void resetBitPacketIndex();
+    void resetToDefaultState();
+
+    void handlePreambleState(const buffer_c16_t& decimator_out);
+    void handleSyncWordState(const buffer_c16_t& decimator_out);
+    void handlePDUPayloadState(const buffer_c16_t& decimator_out);
 
     void configure(const FSKRxConfigureMessage& message);
-    void capture_config(const CaptureConfigMessage& message);
     void sample_rate_config(const SampleRateConfigMessage& message);
-    void flush();
-    void reset();
-    void send_packet(uint32_t data);
-    void process_bits(const buffer_c8_t& buffer);
 
-    void clear_data_bits();
-    void handle_sync(bool inverted);
-
-    /* Returns true if the batch has as sync frame. */
-    bool has_sync() const { return has_sync_; }
-
-    /* Set once app is ready to receive messages. */
-    bool configured = false;
-
-    /* Buffer for decimated IQ data. */
-    std::array<complex16_t, 512> dst{};
+    std::array<complex16_t, MAX_BUFFER_SIZE> dst{};
     const buffer_c16_t dst_buffer{
         dst.data(),
         dst.size()};
 
-    /* Buffer for demodulated audio. */
-    std::array<float, 16> audio{};
-    const buffer_f32_t audio_buffer{audio.data(), audio.size()};
+    uint8_t rb_buf[MAX_BUFFER_SIZE];
+
+    dsp::demodulate::FM demod{};
+    int rb_head{-1};
+    int32_t g_threshold{0};
+    uint8_t channel_number{0};
+
+    uint16_t process = 0;
+
+    bool configured{false};
+    FskPacketData fskPacketData{};
+
+    Parse_State parseState{Parse_State_Wait_For_Peak};
+
+    int sample_idx{0};
+    int samples_eaten{0};
+
+    int32_t max_dB{0};
+    int8_t real{0};
+    int8_t imag{0};
+
+    uint16_t peak_timeout{0};
+    float noise_floor{12.0};  // Using LNA 40 and VGA 20. 10.0 was 40/0 ratio.
+    float target_power_db{5.0};
+    float agc_power{0.0f};
+
+    float frequency_offset_estimate{0.0f};
+    float frequency_offset{0.0f};
+    float phase_buffer[ROLLING_WINDOW] = {0.0f};
+    int phase_buffer_index = 0;
+
+    uint16_t packet_index{0};
+    uint8_t bit_index{0};
+    size_t demod_input_fs{0};
+
+    uint8_t SAMPLE_PER_SYMBOL{1};
+    uint32_t DEFAULT_PREAMBLE{0xAAAAAAAA};
+    uint32_t DEFAULT_SYNC_WORD{0xFFFFFFFF};
+    uint8_t NUM_SYNC_WORD_BYTE{4};
+    uint8_t NUM_PREAMBLE_BYTE{4};
+    uint16_t NUM_DATA_BYTE = MAX_BUFFER_SIZE - NUM_SYNC_WORD_BYTE - NUM_PREAMBLE_BYTE;
+
+    SpectrumCollector channel_spectrum{};
+    size_t spectrum_interval_samples = 0;
+    size_t spectrum_samples = 0;
+    static constexpr auto spectrum_rate_hz = 50.0f;
 
-    /* The actual type will be configured depending on the sample rate. */
     MultiDecimator<
         dsp::decimate::FIRC8xR16x24FS4Decim4,
         dsp::decimate::FIRC8xR16x24FS4Decim8>
@@ -159,9 +191,7 @@ class FSKRxProcessor : public BasebandProcessor {
         NoopDecim>
         decim_1{};
 
-    /* Filter to 24kHz and demodulate. */
     dsp::decimate::FIRAndDecimateComplex channel_filter{};
-    size_t deviation = 3750;
     // fir_taps_real<32> channel_filter_taps = 0;
     size_t channel_decimation = 2;
     int32_t channel_filter_low_f = 0;
@@ -172,51 +202,6 @@ class FSKRxProcessor : public BasebandProcessor {
     FMSquelch squelch{};
     uint64_t squelch_history = 0;
 
-    // /* LPF to reduce noise. POCSAG supports 2400 baud, but that falls
-    //  * nicely into the transition band of this 1800Hz filter.
-    //  * scipy.signal.butter(2, 1800, "lowpass", fs=24000, analog=False) */
-    // IIRBiquadFilter lpf{{{0.04125354f, 0.082507070f, 0.04125354f},
-    //                      {1.00000000f, -1.34896775f, 0.51398189f}}};
-
-    /* Attempts to de-noise and normalize signal. */
-    AudioNormalizer normalizer{};
-
-    /* Handles writing audio stream to hardware. */
-    AudioOutput audio_output{};
-
-    /* Holds the data sent to the app. */
-    AFSKDataMessage data_message{false, 0};
-
-    /* Used to keep track of how many samples were processed
-     * between status update messages. */
-    uint32_t samples_processed = 0;
-
-    /* Number of bits in 'data_' member. */
-    static constexpr uint8_t data_bit_count = sizeof(uint32_t) * 8;
-
-    /* Sync frame codeword. */
-    static constexpr uint32_t sync_codeword = 0x12345678;
-
-    /* When true, sync frame has been received. */
-    bool has_sync_ = false;
-
-    /* When true, bit vales are flipped in the codewords. */
-    bool inverted = false;
-
-    uint32_t data = 0;
-    uint8_t bit_count = 0;
-    uint8_t word_count = 0;
-
-    /* LPF to reduce noise. POCSAG supports 2400 baud, but that falls
-     * nicely into the transition band of this 1800Hz filter.
-     * scipy.signal.butter(2, 1800, "lowpass", fs=24000, analog=False) */
-    IIRBiquadFilter lpf{{{0.04125354f, 0.082507070f, 0.04125354f},
-                         {1.00000000f, -1.34896775f, 0.51398189f}}};
-
-    SpectrumCollector channel_spectrum{};
-    size_t spectrum_interval_samples = 0;
-    size_t spectrum_samples = 0;
-
     /* NB: Threads should be the last members in the class definition. */
     BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
     RSSIThread rssi_thread{};

firmware/common/dsp_fir_taps.hpp

@@ -1649,4 +1649,36 @@ static constexpr fir_taps_real<24> taps_BTLE_2M_PHY_decim_0 = {
 
     }},
 };
+
+// Tested to be better at capturing both 4.0 and 5.0 device. Better attenuation at channel end.
+static constexpr fir_taps_real<24> taps_BTLE_Dual_PHY = {
+    .low_frequency_normalized = -750000.0f / 4000000.0f,
+    .high_frequency_normalized = 750000.0f / 4000000.0f,
+    .transition_normalized = 250000.0f / 4000000.0f,
+    .taps = {{3,
+              -5,
+              -97,
+              -144,
+              317,
+              1099,
+              396,
+              -2887,
+              -4814,
+              1912,
+              18134,
+              32767,
+              32767,
+              18134,
+              1912,
+              -4814,
+              -2887,
+              396,
+              1099,
+              317,
+              -144,
+              -97,
+              -5,
+              3}},
+};
+
 #endif /*__DSP_FIR_TAPS_H__*/

firmware/common/message.hpp

@@ -134,6 +134,8 @@ class Message {
         NoaaAptRxConfigure = 77,
         NoaaAptRxStatusData = 78,
         NoaaAptRxImageData = 79,
+        FSKPacket = 80,
+        EPIRBPacket = 81,
         MAX
     };
 
@@ -338,6 +340,17 @@ class AISPacketMessage : public Message {
     baseband::Packet packet;
 };
 
+class EPIRBPacketMessage : public Message {
+   public:
+    constexpr EPIRBPacketMessage(
+        const baseband::Packet& packet)
+        : Message{ID::EPIRBPacket},
+          packet{packet} {
+    }
+
+    baseband::Packet packet;
+};
+
 class TPMSPacketMessage : public Message {
    public:
     constexpr TPMSPacketMessage(
@@ -452,6 +465,17 @@ struct BlePacketData {
     uint8_t dataLen;
 };
 
+struct FskPacketData {
+    int8_t real;
+    int8_t imag;
+    int max_dB;
+    uint8_t data[512];
+    uint16_t dataLen;
+    uint64_t syncWord;
+    float power;
+    float frequency_offset_hz;
+};
+
 class BLEPacketMessage : public Message {
    public:
     constexpr BLEPacketMessage(
@@ -463,6 +487,17 @@ class BLEPacketMessage : public Message {
     BlePacketData* packet{nullptr};
 };
 
+class FSKRxPacketMessage : public Message {
+   public:
+    constexpr FSKRxPacketMessage(
+        FskPacketData* packet)
+        : Message{ID::FSKPacket},
+          packet{packet} {
+    }
+
+    FskPacketData* packet{nullptr};
+};
+
 class CodedSquelchMessage : public Message {
    public:
     constexpr CodedSquelchMessage(
@@ -1127,24 +1162,27 @@ class FSKConfigureMessage : public Message {
 class FSKRxConfigureMessage : public Message {
    public:
     constexpr FSKRxConfigureMessage(
-        const fir_taps_real<24> decim_0_filter,
-        const fir_taps_real<32> decim_1_filter,
-        const fir_taps_real<32> channel_filter,
-        const size_t channel_decimation,
-        const size_t deviation)
+        const uint8_t samplesPerSymbol,
+        const uint32_t syncWord,
+        const uint8_t syncWordLength,
+        const uint32_t preamble,
+        const uint8_t preambleLength,
+        const uint16_t numDataBytes)
         : Message{ID::FSKRxConfigure},
-          decim_0_filter(decim_0_filter),
-          decim_1_filter(decim_1_filter),
-          channel_filter(channel_filter),
-          channel_decimation{channel_decimation},
-          deviation{deviation} {
+          samplesPerSymbol(samplesPerSymbol),
+          syncWord(syncWord),
+          syncWordLength(syncWordLength),
+          preamble(preamble),
+          preambleLength(preambleLength),
+          numDataBytes(numDataBytes) {
     }
 
-    const fir_taps_real<24> decim_0_filter;
-    const fir_taps_real<32> decim_1_filter;
-    const fir_taps_real<32> channel_filter;
-    const size_t channel_decimation;
-    const size_t deviation;
+    const uint8_t samplesPerSymbol;
+    const uint32_t syncWord;
+    const uint8_t syncWordLength;
+    const uint32_t preamble;
+    const uint8_t preambleLength;
+    const uint16_t numDataBytes;
 };
 
 class POCSAGConfigureMessage : public Message {

firmware/common/sonde_packet.cpp

@@ -110,7 +110,7 @@ GPS_data Packet::get_GPS_data() const {
         result.alt = reader_bi_m.read(8 * 8, 24) / 100.0;       // <|
         result.lat = reader_bi_m.read(28 * 8, 32) / 1000000.0;  // <| Inspired by https://raw.githubusercontent.com/projecthorus/radiosonde_auto_rx/master/demod/mod/m20mod.c
         result.lon = reader_bi_m.read(32 * 8, 32) / 1000000.0;  // <|
-    } else if (type_ == Type::Vaisala_RS41_SG) {
+    } else if (type_ == Type::Vaisala_RS41_SG && crc16rs41(block_gpspos)) {
         uint8_t XYZ_bytes[4];
         int32_t XYZ;  // 32bit
         double_t X[3];
@@ -245,7 +245,7 @@ temp_humid Packet::get_temp_humid() const {
         }
     }
 
-    if (type_ == Type::Vaisala_RS41_SG && crc_ok_RS41())  // Only process if packet is healthy
+    if (type_ == Type::Vaisala_RS41_SG && crc16rs41(block_meas))  // Only process if packet is healthy
     {
         // memset(calfrchk, 0, 51); // is this necessary ? only if the sondeID changes (new sonde)
         // original code from https://github.com/rs1729/RS/blob/master/rs41/rs41ptu.c
@@ -371,9 +371,11 @@ std::string Packet::serial_number() const {
         uint8_t achar;
         for (uint8_t i = 0; i < 8; i++) {  // euquiq: Serial ID is 8 bytes long, each byte a char
             achar = vaisala_descramble(pos_SondeID + i);
-            if (achar < 32 || achar > 126)
-                return "?";  // Maybe there are ids with less than 8 bytes and this is not OK.
-            serial_id += (char)achar;
+            if (achar < 32 || achar > 126) {
+                serial_id += "?";  // Maybe there are ids with less than 8 bytes and this is not OK.
+            } else {
+                serial_id += (char)achar;
+            }
         }
         return serial_id;
     } else {
@@ -414,15 +416,9 @@ bool Packet::crc_ok() const {
 //  2 bytes CRC16 over the data.
 bool Packet::crc_ok_RS41() const  // check CRC for the data blocks we need
 {
-    if (!crc16rs41(block_status))
-        return false;
-
-    if (!crc16rs41(block_gpspos))
-        return false;
-
-    if (!crc16rs41(block_meas))
-        return false;
-
+    if (!crc16rs41(block_status)) return false;
+    if (!crc16rs41(block_gpspos)) return false;
+    if (!crc16rs41(block_meas)) return false;
     return true;
 }
 
@@ -451,8 +447,7 @@ bool Packet::crc16rs41(uint32_t field_start) const {
         }
     }
     // Check calculated CRC against packet's one
-    pos++;
-    int crcok = vaisala_descramble(pos) | (vaisala_descramble(pos + 1) << 8);
+    int crcok = vaisala_descramble(field_start + 2 + length) | (vaisala_descramble(field_start + 2 + length + 1) << 8);
     if (crcok != rem)
         return false;
     return true;

firmware/common/spi_image.hpp

@@ -87,6 +87,7 @@ constexpr image_tag_t image_tag_am_audio{'P', 'A', 'M', 'A'};
 constexpr image_tag_t image_tag_am_tv{'P', 'A', 'M', 'T'};
 constexpr image_tag_t image_tag_capture{'P', 'C', 'A', 'P'};
 constexpr image_tag_t image_tag_ert{'P', 'E', 'R', 'T'};
+constexpr image_tag_t image_tag_epirb_rx{'P', 'E', 'P', 'I'};
 constexpr image_tag_t image_tag_nfm_audio{'P', 'N', 'F', 'M'};
 constexpr image_tag_t image_tag_pocsag{'P', 'P', 'O', 'C'};
 constexpr image_tag_t image_tag_pocsag2{'P', 'P', 'O', '2'};

firmware/common/utility.cpp

@@ -91,6 +91,26 @@ float mag2_to_dbv_norm(const float mag2) {
     return (fast_log2(mag2) - mag2_log2_max) * mag2_to_db_factor;
 }
 
+// Function to calculate dBm and normalize based on LNA and VGA settings
+float mag2_to_dbm_8bit_normalized(int8_t real, int8_t imag, float v_ref, float R) {
+    // Step 1: Normalize IQ values (convert 8-bit signed to -1.0 to +1.0)
+    float I = real / 127.0f;  // Map the 8-bit real part to the [-1, 1] range
+    float Q = imag / 127.0f;  // Map the 8-bit imaginary part to the [-1, 1] range
+
+    // Step 2: Compute the magnitude squared (I^2 + Q^2)
+    float mag2 = I * I + Q * Q;
+
+    // Step 3: Convert the magnitude squared to actual power (in watts)
+    float voltage_squared = mag2 * v_ref * v_ref;
+    float power_watts = voltage_squared / R;
+
+    // Step 4: Convert the power to dBm (multiply by 1000 to convert watts to milliwatts)
+    float power_milliwatts = power_watts * 1000.0f;
+    float dbm_measured = 10.0f * log10f(power_milliwatts);
+
+    return dbm_measured;
+}
+
 // Integer in and out approximation
 // >40 times faster float sqrt(x*x+y*y) on Cortex M0
 // derived from https://dspguru.com/dsp/tricks/magnitude-estimator/

firmware/common/utility.hpp

@@ -90,6 +90,7 @@ float fast_log2(const float val);
 float fast_pow2(const float val);
 
 float mag2_to_dbv_norm(const float mag2);
+float mag2_to_dbm_8bit_normalized(int8_t real, int8_t imag, float v_ref, float R);
 
 inline float magnitude_squared(const std::complex<float> c) {
     const auto r = c.real();

firmware/tools/export_external_apps.py

@@ -98,6 +98,7 @@ for external_image_prefix in sys.argv[4:]:
 
 	# COMMAND ${CMAKE_OBJCOPY} -v -O binary ${PROJECT_NAME}.elf ${PROJECT_NAME}_ext_pacman.bin --only-section=.external_app_pacman
 	himg = "{}/external_app_{}.himg".format(binary_dir, external_image_prefix)
+	print("Creating external application image for {}".format(external_image_prefix))
 	subprocess.run([cmake_objcopy, "-v", "-O", "binary", "{}/application.elf".format(binary_dir), himg, "--only-section=.external_app_{}".format(external_image_prefix)])
 
 	external_application_image = read_image(himg)

hardware/portapack_h4m/3d_printed/README.md

@@ -0,0 +1,6 @@
+Upgraded standard case<br>https://www.printables.com/model/1337429-upgraded-hackrf-portapack-h4h4m-case
+
+
+Upgraded 18650 version case<br>https://www.printables.com/model/1337451-18650-power-hackrf-portapack-h4m-case
+
+Official case, made for injection molding. Can be 3D printed, but has very tight tolerances.<br>https://www.printables.com/model/1019145-official-hackrf-portapack-h4h4m-case/comments

sdcard/BLETX/Android Spam v4.txt

@@ -1,464 +1,464 @@
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sdcard/BLETX/BLE Tx Sample.txt

@@ -1 +1 @@
-010203040506 00112233445566778899AABBCCDDEEFF 1000
+010203040506 00112233445566778899AABBCCDDEEFF DISCOVERY 1000

sdcard/BLETX/Discovery Packet.txt

@@ -1 +1 @@
-010203040506 190953445220426c7565746f6f7468204c6f7720456e65726779 1000
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