#define Buzzer 23
unsigned long previousTimeBuzz = millis();
long timeIntervalBuzz = 10000;

void setup(){
    Serial.begin(115200);
    previousTimeBuzz = millis();
    pinMode(Buzzer, OUTPUT);
}

void loop(){
    /*delay(1000);
    digitalWrite(Buzzer, HIGH);
    delay(1000);
    digitalWrite(Buzzer, LOW);*/
  startBuzz();
  delay(1000); // this speeds up the simulation
}

void startBuzz() {
  unsigned long currentTime = millis();
  if (currentTime - previousTimeBuzz > timeIntervalBuzz) {
    previousTimeBuzz = currentTime;
    digitalWrite(Buzzer, HIGH);
    tone(Buzzer, 300, 250);
    tone(Buzzer, 100, 250);
    tone(Buzzer, 200, 400);
    tone(Buzzer, 180, 250);

  } else {
    digitalWrite(Buzzer, LOW);
    noTone(Buzzer);
  }
}

void stopBuzz() {
  digitalWrite(Buzzer, LOW);
  noTone(Buzzer);
}