#define BUZZPIN 21
unsigned long previousTimeBuzz = millis();
long timeIntervalBuzz = 700;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(BUZZPIN, OUTPUT);
  previousTimeBuzz = millis();
  Serial.println("Hello, ESP32-S3!");
}

void loop() {
   // startBuzz();
   digitalWrite(BUZZPIN, HIGH);
    tone(BUZZPIN, 300, 250);
  delay(100); // this speeds up the simulation
}

void startBuzz() {
  unsigned long currentTime = millis();
  if (currentTime - previousTimeBuzz > timeIntervalBuzz) {
    previousTimeBuzz = currentTime;
    digitalWrite(BUZZPIN, HIGH);
    tone(BUZZPIN, 300, 250);
  } else {
    digitalWrite(BUZZPIN, LOW);
    noTone(BUZZPIN);
  }
}

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