Bottango_play_sound

// Sound
#define DFPLAYER_RX 10  // Define RX PIN for DFPlayer
#define DFPLAYER_TX 11  // Define TX PIN for DFPlayer
SoftwareSerial softSerial(DFPLAYER_RX, DFPLAYER_TX);
#define FPSerial softSerial
DFRobotDFPlayerMini myDFPlayer;


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 void onEffectorRegistered(AbstractEffector *effector)
    {
      char effectorIdentifier[9];
      effector->getIdentifier(effectorIdentifier, 9);

      if (strcmp(effectorIdentifier, "snd1") == 0) {

        FPSerial.begin(9600);

        Serial.println(F("DFRobot DFPlayer Mini Demo"));
        Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));
  
        if (!myDFPlayer.begin(FPSerial, /*isACK = */true, /*doReset = */true)) {  //Use serial to communicate with mp3.
          Serial.println(F("Unable to begin:"));
          Serial.println(F("1.Please recheck the connection!"));
          Serial.println(F("2.Please insert the SD card!"));
          while(true){
            delay(0); // Code to compatible with ESP8266 watch dog.
          }
        }

        Serial.println(F("DFPlayer Mini online."));
      }
    }



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 void onTriggerCustomEventTriggered(AbstractEffector *effector)
    {
        char effectorIdentifier[9];
        effector->getIdentifier(effectorIdentifier, 9);

        if (strcmp(effectorIdentifier, "snd1") == 0) {
          myDFPlayer.volume(20);  //Set volume value. From 0 to 30
          myDFPlayer.play(1);  //Play the first mp3 
        }  
    }