// Does the buzzer work with the tone() function on a ESP32 ?
// Answer: Yes

const int buzzerPin = 16;

void setup() 
{
  Serial.begin(115200);
  Serial.println("Testing the tone() function on a ESP32");
  delay(400);
}

void loop() 
{
  int frequency = random(500,1100);
  tone(buzzerPin,frequency);
  delay(80);
  noTone(buzzerPin);
  delay(300);
}