핀 설정 사항

int LED = 11;
int senser = 12;
int val= 0;
int cnt = 0;

setup 핀설정 사항

void setup

    pinMode(LED, OUTPUT);
    pinMode(senser, INPUT);

void loop() {
  byte i;
  static byte playing = -1;
   val = digitalRead(senser); 

  if ((pressed[0])&&(val == HIGH)) {
    if (playing != 0) {
      playing = 0;
      playfile("0.WAV");
       digitalWrite(LED,HIGH);
      cnt++;
    }
  }
  else if ((pressed[1])&& (val == HIGH)) {
    if (playing != 1) {
      playing = 1;
      playfile("1.WAV");
      digitalWrite(LED, HIGH) ;
      cnt++;
    }
  }
  else if ((pressed[2])&&(val == HIGH)) {
    if (playing != 2) {
      playing = 2;
      playfile("2.WAV");
      digitalWrite(LED, HIGH) ;
      cnt++;
    } 
  }
  else if ((pressed[3])&&(val==HIGH)) {
    if (playing != 3) {
      playing = 3;
      playfile("FA.WAV");
      digitalWrite(LED, HIGH) ;
      cnt++;
    }
  }
  else if ((pressed[4])&&(val==HIGH)) {
    if (playing != 4) {
      playing = 4;
      playfile("SO.WAV");
      digitalWrite(LED, HIGH) ;
      cnt++;
    }
  }
  else if ((pressed[5])&&(val==HIGH)) {
    if (playing != 5) {
      playing = 5;
      playfile("LA.WAV");
      digitalWrite(LED, HIGH) ;
      cnt++;
    }
  }
  else if (cnt ==1){
       cnt = 0;
       digitalWrite(LED, LOW) ;
}

  if (! wave.isplaying) {
    playing = -1;
  }
}