first working prototype

src/main.cpp

@@ -11,13 +11,25 @@
 
 AudioGeneratorMP3 *mp3;
 AudioFileSourceSPIFFS *file;
-AudioOutputI2SNoDAC *out;
+AudioOutputI2S *out;
+
+unsigned long lastStart = 0;
+
+const int startDelay = 250;
+
+void initMp3File() {
+  file = new AudioFileSourceSPIFFS("/ex2.mp3");
+  out = new AudioOutputI2S();
+  mp3 = new AudioGeneratorMP3();
+}
 
 void setup()
 {
   // put your setup code here, to run once:
   Serial.begin(115200);
 
+  pinMode(D3, INPUT_PULLUP);
+
   // WiFiManager
   // Local intialization. Once its business is done, there is no need to keep it around
   
@@ -47,27 +59,37 @@ void setup()
   
   SPIFFS.begin();
   Serial.println("beginning mp3 setup...");
-  file = new AudioFileSourceSPIFFS("/ex.mp3");
-  out = new AudioOutputI2SNoDAC();
-  mp3 = new AudioGeneratorMP3();
-  if (!mp3->begin(file, out)) {
-    Serial.println("could not play file.");
-  }
-  
+  initMp3File();
+
 
 }
 
+
+
 void loop()
 {
+  //Serial.print(digitalRead(D2));
+  
+  if (digitalRead(D3)==LOW) {
+    unsigned long now = millis();
+    Serial.print("LOW");
+    if (now-lastStart>startDelay) {
+      if (mp3->isRunning()) {
+        mp3->stop();
+      }
+      initMp3File();
+      mp3->begin(file,out);
+      Serial.print("started.");
+      lastStart=now;
+    }
+
+  }
+  
   if (mp3->isRunning())
   {
     if (!mp3->loop())
       mp3->stop();
   }
-  else
-  {
-    Serial.printf("MP3 done\n");
-    delay(1000);
-  }
+ 
   
 }