gist:jq6500playPullUp.ino

#include <Arduino.h>
#include <SoftwareSerial.h>
#include <JQ6500_Serial.h>

JQ6500_Serial mp3(2,3);

void setup(){
  mp3.begin(9600);
  mp3.reset();
  pinMode(A0, INPUT_PULLUP);
  pinMode(6, OUTPUT);
  digitalWrite(6, LOW);
}

void loop(){
  if(analogRead(A0) < 500){
    mp3.play();
    delay(1000);
  }
}