int SwitchState=0;
int buzzer = 12;

void setup() {
  pinMode(buzzer, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(4, INPUT);

}

void loop() {
  SwitchState = digitalRead(4);
  if (SwitchState == HIGH) {
    digitalWrite(5, LOW);
    digitalWrite(buzzer, HIGH);
    delay(25);
    digitalWrite(buzzer, LOW);

    delay(1500);
    digitalWrite(6, LOW);
    digitalWrite(buzzer, HIGH);
    delay(25);
    digitalWrite(buzzer, LOW);

    delay(1500);
    digitalWrite(7, LOW);
    digitalWrite(buzzer, HIGH);
    delay(25);
    digitalWrite(buzzer, LOW);

    delay(1500);
    digitalWrite(8, LOW);
    digitalWrite(buzzer, HIGH);
    delay(25);
    digitalWrite(buzzer, LOW);

  }
  SwitchState = digitalRead(4);
  if (SwitchState == LOW) {
    digitalWrite(5, HIGH);
    digitalWrite(6, HIGH);
    digitalWrite(7, HIGH);
    digitalWrite(8, HIGH);
  }


}