Added 3d printed cases for the H4M (#2715 )

BLE Rx Improvements (#2710 )
* Work to allow for unique beacon parsing functions. * Fix Copyright * Update firmware/application/apps/ble_rx_app.cpp * Update firmware/baseband/proc_btlerx.cpp * PR suggestions. * Fix String. * Refactor
2026-09-14 02:29:29 +00:00 · 2025-06-25 19:16:43 +02:00 · 2025-06-25 19:14:04 +02:00 · 2025-06-25 16:08:48 +02:00 · 2025-06-25 16:07:56 +02:00 · 2025-06-21 08:35:52 +02:00
18 changed files with 2380 additions and 265 deletions
@@ -57,6 +57,95 @@ std::string pad_string_with_spaces(int snakes) {
    return paddedStr;
 }

+struct GainEntry {
+    uint8_t lna;
+    uint8_t vga;
+    uint8_t gain;
+};
+
+// Only LNA with VGA 0-4 is tested to be accurate. Max zeroized gain tested to be 16dBm.
+// Beyond that it is hard to tell distance to transmitting device.
+// Test was conducted within a few inches of the device.
+// Device was transmitting at 0dBm.
+constexpr GainEntry gain_table[] =
+    {
+        {40, 0, 19},
+        {32, 0, 18},
+        {24, 0, 15},
+        {16, 0, 8},
+        {8, 0, 2},
+        {0, 0, 0},
+        {40, 2, 20},
+        {32, 2, 22},
+        {24, 2, 14},
+        {16, 2, 8},
+        {8, 2, 2},
+        {0, 2, 0},
+        {40, 4, 21},
+        {32, 4, 22},
+        {24, 4, 15},
+        {16, 4, 10},
+        {8, 4, 3},
+        {0, 4, 0},
+        {40, 6, 26},
+        {32, 6, 22},
+        {24, 6, 15},
+        {16, 6, 10},
+        {8, 6, 4},
+        {0, 6, 0},
+        {40, 8, 26},
+        {32, 8, 26},
+        {24, 8, 18},
+        {16, 8, 12},
+        {8, 8, 6},
+        {0, 8, 1},
+        {40, 10, 26},
+        {32, 10, 26},
+        {24, 10, 20},
+        {16, 10, 15},
+        {8, 10, 8},
+        {0, 10, 3},
+        {40, 12, 26},
+        {32, 12, 26},
+        {24, 12, 23},
+        {16, 12, 17},
+        {8, 12, 10},
+        {0, 12, 4},
+        {40, 14, 26},
+        {32, 14, 26},
+        {24, 14, 25},
+        {16, 14, 19},
+        {8, 14, 12},
+        {0, 14, 6},
+        {40, 16, 26},
+        {32, 16, 26},
+        {24, 16, 26},
+        {16, 16, 20},
+        {8, 16, 13},
+        {0, 16, 7},
+        {40, 18, 26},
+        {32, 18, 26},
+        {24, 18, 26},
+        {16, 18, 21},
+        {8, 18, 14},
+        {0, 18, 8},
+        {40, 20, 26},
+        {32, 20, 26},
+        {24, 20, 26},
+        {16, 20, 23},
+        {8, 20, 16},
+        {0, 20, 10},
+};
+
+uint8_t get_total_gain(uint8_t lna, uint8_t vga) {
+    for (const auto& entry : gain_table) {
+        if (entry.lna == lna && entry.vga == vga)
+            return entry.gain;
+    }
+
+    return 0;
+}
+
 uint64_t copy_mac_address_to_uint64(const uint8_t* macAddress) {
    uint64_t result = 0;

@@ -68,22 +157,6 @@ 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 +201,22 @@ 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) {
@@ -186,19 +275,26 @@ void RecentEntriesTable<BleRecentEntries>::draw(
    if (!entry.nameString.empty() && entry.include_name) {
        line = entry.nameString;

-        if (line.length() < 17) {
-            line += pad_string_with_spaces(17 - line.length());
+        if (line.length() < 10) {
+            line += pad_string_with_spaces(10 - line.length());
        } else {
-            line = truncate(line, 17);
+            line = truncate(line, 10);
        }
    } else {
        line = to_string_mac_address(entry.packetData.macAddress, 6, false);
    }

+    std::string hitsStr;
+
+    if (!entry.informationString.empty()) {
+        hitsStr = entry.informationString;
+    } else {
+        hitsStr = "Hits: " + 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;
+    uint8_t hits_spacing = 14 - hitsDigits;

    // Pushing single digit values down right justified.
    std::string dbStr = to_string_dec_int(entry.dbValue);
@@ -539,7 +635,6 @@ BLERxView::BLERxView(NavigationView& nav)
    logger = std::make_unique<BLELogger>();

    check_log.on_select = [this](Checkbox&, bool v) {
-        str_log = "";
        logging = v;

        if (logger && logging)
@@ -561,6 +656,7 @@ BLERxView::BLERxView(NavigationView& nav)

    button_clear_list.on_select = [this](Button&) {
        recent.clear();
+        recent_entries_view.set_dirty();
    };

    button_switch.on_select = [&nav](Button&) {
@@ -602,7 +698,10 @@ 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);
+        uniqueParsing = filter_index == 2 ? true : false;
+        recent_entries_view.set_dirty();
    };

    options_channel.set_selected_index(channel_index, true);
@@ -775,10 +874,49 @@ bool BLERxView::saveFile(const std::filesystem::path& path) {
 }

 void BLERxView::on_data(BlePacketData* packet) {
-    if (!logging) {
-        str_log = "";
+    uint64_t macAddressEncoded = copy_mac_address_to_uint64(packet->macAddress);
+
+    // Start of Packet stuffing.
+    // Masking off the top 2 bytes to avoid invalid keys.
+
+    BleRecentEntry tempEntry;
+
+    if (updateEntry(packet, tempEntry, (ADV_PDU_TYPE)packet->type)) {
+        auto& entry = ::on_packet(recent, macAddressEncoded & 0xFFFFFFFFFFFF);
+
+        // Preserve exisisting data from entry.
+        tempEntry.macAddress = macAddressEncoded;
+        tempEntry.numHits = ++entry.numHits;
+
+        entry = tempEntry;
+
+        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 (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));
+        }
    }

+    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);
@@ -792,49 +930,14 @@ 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) {
@@ -979,16 +1082,18 @@ 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;

+    bool success = false;
+
    int i;

    for (i = 0; i < packet->dataLen; i++) {
        data_string += to_string_hex(packet->data[i], 2);
    }

-    entry.dbValue = packet->max_dB;
+    entry.dbValue = 2 * (packet->max_dB - get_total_gain(receiver_model.lna(), receiver_model.vga()));
    entry.timestamp = to_string_timestamp(rtc_time::now());
    entry.dataString = data_string;

@@ -1004,7 +1109,6 @@ void BLERxView::updateEntry(const BlePacketData* packet, BleRecentEntry& entry,
    entry.packetData.macAddress[4] = packet->macAddress[4];
    entry.packetData.macAddress[5] = packet->macAddress[5];

-    entry.numHits++;
    entry.pduType = pdu_type;
    entry.channelNumber = channel_number;

@@ -1021,35 +1125,48 @@ void BLERxView::updateEntry(const BlePacketData* packet, BleRecentEntry& entry,
    entry.include_name = check_name.value();

    // 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;
-
-        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 (pdu_type == ADV_IND || pdu_type == ADV_NONCONN_IND)  // || pdu_type == SCAN_RSP || pdu_type == ADV_SCAN_IND)
+    {
+        if (uniqueParsing) {
+            // Add your unique beacon parsing function here.
        }
+
+        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);
    }
+
+    return success;
+}
+
+bool BLERxView::parse_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++];
+
+        // 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) {
+                nameString += (char)data[currentByte];
+            }
+            currentByte++;
+        }
+    }
+
+    if (nameString.empty()) {
+        nameString = "None";
+    }
+
+    informationString = "";
+
+    return true;
 }

 } /* namespace ui */
@@ -84,7 +84,7 @@ typedef enum {
 struct BleRecentEntry {
    using Key = uint64_t;

-    static constexpr Key invalid_key = 0xffffffff;
+    static constexpr Key invalid_key = 0xFFFFFFFFFFFF;

    uint64_t macAddress;
    int dbValue;
@@ -92,6 +92,7 @@ struct BleRecentEntry {
    std::string timestamp;
    std::string dataString;
    std::string nameString;
+    std::string informationString;
    bool include_name;
    uint16_t numHits;
    ADV_PDU_TYPE pduType;
@@ -111,6 +112,7 @@ struct BleRecentEntry {
          timestamp{},
          dataString{},
          nameString{},
+          informationString{},
          include_name{},
          numHits{},
          pduType{},
@@ -216,15 +218,18 @@ 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);

    NavigationView& nav_;
+
    RxRadioState radio_state_{
        2402000000 /* frequency */,
        4000000 /* bandwidth */,
@@ -234,6 +239,7 @@ class BLERxView : public View {
    uint8_t channel_index{0};
    uint8_t sort_index{0};
    uint8_t filter_index{0};
+    bool uniqueParsing = false;
    std::string filter{};
    bool logging{false};
    bool serial_logging{false};
@@ -325,9 +331,10 @@ class BLERxView : public View {

    OptionsField options_filter{
        {18 * 8 + 2, 2 * 8},
-        4,
+        7,
        {{"Data", 0},
-         {"MAC", 1}}};
+         {"MAC", 1},
+         {"Unique", 2}}};

    Checkbox check_log{
        {10 * 8, 4 * 8 + 2},
@@ -380,9 +387,9 @@ class BLERxView : public View {
    BleRecentEntries tempList{};

    const RecentEntriesColumns columns{{
-        {"Mac Address", 17},
-        {"Hits", 7},
-        {"dB", 4},
+        {"Name", 10},
+        {"Information", 13},
+        {"dBm", 4},
    }};

    BleRecentEntriesView recent_entries_view{columns, recent};
@@ -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,
+};
+}
@@ -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
@@ -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__ */
@@ -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,
 };
-}
+}
@@ -220,6 +220,14 @@ set(EXTCPPSRC
 	#detector_rx
 	external/detector_rx/main.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	
 )

 set(EXTAPPLIST
@@ -276,4 +284,6 @@ set(EXTAPPLIST
 	level
 	gfxeq
 	detector_rx
+	spaceinv
+	blackjack
 )
@@ -76,6 +76,8 @@ 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
 }

 SECTIONS
@@ -398,5 +400,17 @@ 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
+
 }

@@ -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
@@ -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
@@ -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__ */
@@ -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();
@@ -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__*/
@@ -27,6 +27,15 @@

 #include "event_m4.hpp"

+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;
+}
+
 uint32_t BTLERxProcessor::crc_init_reorder(uint32_t crc_init) {
    int i;
    uint32_t crc_init_tmp, crc_init_input, crc_init_input_tmp;
@@ -122,120 +131,111 @@ int BTLERxProcessor::verify_payload_byte(int num_payload_byte, ADV_PDU_TYPE pdu_
    return 0;
 }

+void BTLERxProcessor::resetOffsetTracking() {
+    frequency_offset = 0.0f;
+    frequency_offset_estimate = 0.0f;
+    phase_buffer_index = 0;
+    memset(phase_buffer, 0, sizeof(phase_buffer));
+}
+
+void BTLERxProcessor::resetBitPacketIndex() {
+    memset(rb_buf, 0, sizeof(rb_buf));
+    packet_index = 0;
+    bit_index = 0;
+}
+
+void BTLERxProcessor::resetToDefaultState() {
+    parseState = Parse_State_Begin;
+    resetOffsetTracking();
+    resetBitPacketIndex();
+}
+
+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;
+            }
+
+            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;
+
+            bool bitDecision = (phaseSum > 0.0f);
+            rb_buf[packet_index] = rb_buf[packet_index] | (bitDecision << bit_index);
+
+            samples_eaten += SAMPLE_PER_SYMBOL;
+        }
+
+        bit_index = 0;
+    }
+}
+
 void BTLERxProcessor::handleBeginState() {
-    int num_symbol_left = dst_buffer.count / SAMPLE_PER_SYMBOL;  // One buffer sample consist of I and Q.
-
-    static uint8_t demod_buf_access[SAMPLE_PER_SYMBOL][LEN_DEMOD_BUF_ACCESS];
-
-    uint32_t uint32_tmp = DEFAULT_ACCESS_ADDR;
-    uint8_t accessAddrBits[LEN_DEMOD_BUF_ACCESS];
-
+    uint32_t validAccessAddress = DEFAULT_ACCESS_ADDR;
    uint32_t accesssAddress = 0;

-    // 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);
-    }
-
-    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) {
+        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 <= 4) {
+            hit_idx = i + SAMPLE_PER_SYMBOL;
+
+            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 = 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) {
+    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) {
+        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);
@@ -252,30 +252,16 @@ void BTLERxProcessor::handlePDUHeaderState() {
 }

 void BTLERxProcessor::handlePDUPayloadState() {
-    int i;
-    int num_demod_byte = (payload_len + 3);
-    symbols_eaten += 8 * num_demod_byte * SAMPLE_PER_SYMBOL;
+    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) {
+        return;
    }

    scramble_byte(rb_buf + 2, num_demod_byte, scramble_table[channel_number] + 2, rb_buf + 2);
@@ -310,6 +296,8 @@ 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 +310,52 @@ 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.
-    uint32_t max_squared = 0;
+    max_dB = -128;

-    void* src_p = buffer.p;
+    real = -128;
+    imag = -128;

-    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;
+    auto* ptr = buffer.p;
+    auto* end = &buffer.p[buffer.count];
+
+    while (ptr < end) {
+        float dbm = mag2_to_dbm_8bit_normalized(ptr->real(), ptr->imag(), 1.0f, 50.0f);
+
+        if (dbm > max_dB) {
+            max_dB = dbm;
+            real = ptr->real();
+            imag = ptr->imag();
        }
-    }

-    const float max_squared_f = max_squared;
-    max_dB = mag2_to_dbv_norm(max_squared_f * (1.0f / (32768.0f * 32768.0f)));
+        ptr++;
+    }

    // 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();
+        }
    }
 }

@@ -372,7 +366,7 @@ 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_2M_PHY_decim_0.taps);

    configured = true;

@@ -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 +128,20 @@ 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};
+    int8_t real{0};
+    int8_t imag{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};
@@ -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/
@@ -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();
@@ -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
Author	SHA1	Message	Date
plomek	0eb03373b1	Added 3d printed cases for the H4M (#2715 )	2025-06-25 19:16:43 +02:00
Netro	d5ea0f0369	BLE Rx Improvements (#2710 ) * Work to allow for unique beacon parsing functions. * Fix Copyright * Update firmware/application/apps/ble_rx_app.cpp * Update firmware/baseband/proc_btlerx.cpp * PR suggestions. * Fix String. * Refactor	2025-06-25 19:14:04 +02:00
RocketGod	22cc311447	Update app icons for Space Invaders and Dino Game (#2713 )	2025-06-25 16:08:48 +02:00
RocketGod	4fbba205ad	Made the Blackjack game (#2712 ) * Made the Blackjack game * Format Blackjack main.cpp * Changed spade to diamond for dark mode visibility * Format code	2025-06-25 16:07:56 +02:00
RocketGod	7b91103118	Made the Space Invaders game. Argh matey! (#2709 ) * Made the Space Invaders game. Argh matey! * Format code, sigh.	2025-06-21 08:35:52 +02:00