Initial Commit

Lumix.cpp

@@ -0,0 +1,110 @@
+#include "Lumix.h"
+
+Lumix::Lumix(String ip){
+  this->ip = ip;
+  connectionStatus = 0;
+  deviceName = "";
+  lastKeepAlive = 0;
+}
+
+void Lumix::updateDeviceName(String deviceName){
+  this->deviceName = deviceName;
+}
+
+void Lumix::updateConnectionStatus(int connectionStatus){
+  this->connectionStatus = connectionStatus;
+}
+
+void Lumix::updateIp(String ip){
+  this->ip = ip;
+}
+
+bool Lumix::isConnected(){
+  return connectionStatus == CAMERA_CONNECTED;
+}
+
+bool Lumix::isConnecting(){
+  return connectionStatus == CAMERA_CONNECTING;
+}
+
+bool Lumix::isDisabled(){
+  return connectionStatus == CAMERA_DISABLED;
+}
+
+void Lumix::update(){
+  if((millis()-lastKeepAlive) > LUMIX_KEEPALIVE_INTERVAL && !isDisabled()){
+    Serial.println("Sending Lumix Keep Alive");
+    
+    if(!isConnected()){
+      sendCommand("?mode=accctrl&type=req_acc&value=0&value2=LumixStick");
+    }
+    
+    sendCommand("?mode=camcmd&value=recmode");
+    lastKeepAlive = millis();
+  }
+}
+
+int Lumix::getConnectionStatus(){
+  return connectionStatus;
+}
+
+String Lumix::getDeviceName(){
+  return deviceName;
+}
+
+String Lumix::getBaseUrl(){
+  return "http://" + ip + "/cam.cgi";
+}
+
+String Lumix::getCaptureUrl(){
+  return "http://" + ip + "/cam.cgi?mode=camcmd&value=capture";
+}
+
+//this assumed what you are passing is the bit after cam.cgi ex. "?mode=camcmd&value=recmode"
+void Lumix::sendCommand(String paramString){
+  String commandUrl = "http://" + ip + "/cam.cgi" + paramString;
+  Serial.println("Sending request: " + commandUrl);
+  HTTPClient http;
+  http.setConnectTimeout(100);
+  http.begin(commandUrl.c_str());
+  
+  int httpResponseCode = http.GET();
+
+  if(httpResponseCode == 200){
+        String payload = http.getString();
+        if(payload.indexOf("ok") >= 0){
+          if(paramString.indexOf("req_acc") >= 0 && isConnecting()){
+            updateDeviceName(getSplitStringIndex(payload,',',1));
+            updateConnectionStatus(CAMERA_CONNECTED);
+          }
+        }else{
+          if(isConnected()){
+            updateConnectionStatus(CAMERA_CONNECTING);
+          }
+        }
+    }
+    else {
+      //Some other error either way we didn't get an "ok" back from the camera
+      if(isConnected()){
+        updateConnectionStatus(CAMERA_CONNECTING);
+      }
+    }
+}
+
+// https://stackoverflow.com/questions/9072320/split-string-into-string-array
+String Lumix::getSplitStringIndex(String data, char separator, int index)
+{
+  int found = 0;
+  int strIndex[] = {0, -1};
+  int maxIndex = data.length()-1;
+
+  for(int i=0; i<=maxIndex && found<=index; i++){
+    if(data.charAt(i)==separator || i==maxIndex){
+        found++;
+        strIndex[0] = strIndex[1]+1;
+        strIndex[1] = (i == maxIndex) ? i+1 : i;
+    }
+  }
+
+  return found>index ? data.substring(strIndex[0], strIndex[1]) : "";
+}

Lumix.h

@@ -0,0 +1,40 @@
+#define CAMERA_DISABLED 0
+#define CAMERA_CONNECTING 1
+#define CAMERA_CONNECTED 2
+
+#define LUMIX_KEEPALIVE_INTERVAL 2000
+
+#include <Arduino.h>
+#include <HTTPClient.h>
+
+class Lumix {
+  private:
+    String ip;
+    int connectionStatus;
+    String deviceName;
+    unsigned long lastKeepAlive;
+
+  public:
+    Lumix(String ip);
+
+    void updateDeviceName(String deviceName);
+    void updateConnectionStatus(int connectionStatus);
+    void updateIp(String ip);
+
+    bool isConnected();
+    bool isConnecting();
+    bool isDisabled();
+
+    void update();
+    
+    int getConnectionStatus();
+    String getDeviceName();
+
+    String getBaseUrl();
+    String getCaptureUrl();
+
+    void sendCommand(String paramString);
+
+
+    String getSplitStringIndex(String data, char separator, int index);
+};

LumixStick.ino

@@ -0,0 +1,122 @@
+#include <M5StickC.h>
+#include <WiFi.h>
+
+#include <WebServer.h>
+
+#include <FS.h>
+#include <SPIFFS.h>
+#include "Lumix.h"
+
+// Put your wifi SSID and password here
+const char* ssid = "ssid";
+const char* password = "password";
+
+WebServer server(80);
+
+Lumix camera = Lumix("192.168.54.1");
+
+const char index_html[] PROGMEM = R"rawliteral(
+<!DOCTYPE HTML><html><head>
+  <title>LumixStick</title>
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  </head><body>
+  <form action="/save">
+    Camera IP: <input type="text" name="ip">
+    <input type="submit" value="Save">
+  </form>
+</body></html>)rawliteral";
+
+
+void handleRoot() {
+  server.send(200, "text/html", index_html);
+}
+
+void handleSave(){
+  if(server.arg("ip") == ""){
+    server.send(200,"text/plain", "No IP Param....no update made");
+  }else{
+    String response = "Camera IP Updated to " + server.arg("ip");
+    camera.updateIp(server.arg("ip"));
+    server.send(200, "text/plain", response);
+  }
+}
+
+void handleNotFound() {
+  String message = "File Not Found\n\n";
+  message += "URI: ";
+  message += server.uri();
+  message += "\nMethod: ";
+  message += (server.method() == HTTP_GET) ? "GET" : "POST";
+  message += "\nArguments: ";
+  message += server.args();
+  message += "\n";
+  for (uint8_t i = 0; i < server.args(); i++) {
+    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
+  }
+  server.send(404, "text/plain", message);
+}
+
+// the setup routine runs once when M5StickC starts up
+void setup(){
+  M5.begin();
+  M5.Lcd.fillScreen(BLACK);
+  Serial.begin(115200);
+  
+  WiFi.begin(ssid,password);
+  Serial.print("WiFi Connecting");
+  // Wait for connection
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(100);
+    Serial.print(".");
+  }
+  Serial.println();
+  Serial.println("WiFi Connected - " + WiFi.localIP().toString());
+
+  server.on("/", handleRoot);
+  server.on("/save", handleSave);
+  server.onNotFound(handleNotFound);
+
+  server.begin();
+  
+}
+
+void updateCameraStatusIndicator(){
+  
+  int circleRadius = 7;
+  int padding = 4;
+
+  switch (camera.getConnectionStatus()) {
+    case CAMERA_DISABLED:
+      M5.Lcd.fillCircle(M5.Lcd.width() - circleRadius - padding, circleRadius + padding, circleRadius, TFT_RED);
+      break;
+    case CAMERA_CONNECTING:
+      M5.Lcd.fillCircle(M5.Lcd.width() - circleRadius - padding, circleRadius + padding, circleRadius, TFT_YELLOW);
+      break;
+    case CAMERA_CONNECTED:
+      M5.Lcd.fillCircle(M5.Lcd.width() - circleRadius - padding, circleRadius + padding, circleRadius, TFT_GREEN);
+      break;
+    default:
+      // statements
+      break;
+  }
+}
+
+void loop() {
+  M5.update();
+  server.handleClient();
+  camera.update();
+  updateCameraStatusIndicator();
+  
+  if(M5.BtnB.wasPressed()){
+    if(!camera.isDisabled()){
+      camera.updateConnectionStatus(CAMERA_DISABLED);
+    }else{
+      camera.updateConnectionStatus(CAMERA_CONNECTING);
+    }
+  }
+
+  if(M5.BtnA.wasPressed() && camera.isConnected()){
+    Serial.println("Sending Lumix Capture Command");
+    camera.sendCommand("?mode=camcmd&value=capture");
+  }
+}