// Guitar stand tuner #2

void setup() {
  // put your setup code here, to run once:
pinMode(13, OUTPUT);
pinMode(10, OUTPUT);    // My guitar tuner screen
pinMode(4, OUTPUT);   // My guitar tuner screen
pinMode(A0, INPUT_PULLUP);
}

void loop() {

  if(digitalRead(A0) == LOW)  {
    digitalWrite(10, HIGH);
    delay(300);
    digitalWrite(10, LOW);
    delay(600);
    digitalWrite(4, HIGH);
    delay(300);   // Delay 0.3 secs
    digitalWrite(4, LOW);
    delay(600);
  }


}