int buzzer = 8;
int Red = 7;
void setup() {
  pinMode(buzzer, OUTPUT);
  pinMode(Red, OUTPUT);
}

void loop() {
  for (int x = 0; x < 3; x++) {
    tone(8, 500);
    digitalWrite(Red, HIGH);
    delay(500);
    noTone(8);
    digitalWrite(Red, LOW);
    delay(1000); 
  }

}