const int tonePin = 9; // Change this to the desired output pin
const int frequency = 1000; // Frequency in Hertz
const int duration = 1000; // Duration in milliseconds

void setup() {
  pinMode(tonePin, OUTPUT);
}

void loop() {
  tone(tonePin, frequency, duration);
  delay(duration + 100); // Add a small delay between tones
}