#define BUZZER_PIN 9 // Connect the red wire of the buzzer to D9, black wire to GND

void setup() {
  Serial.begin(9600);
  Serial.println("Passive Buzzer Test Initialized");
}

void loop() {
  // Play a tone at 1000 Hz for 500 ms
  tone(BUZZER_PIN, 1000, 500); // 1000 Hz = 1 kHz
  Serial.println("Tone ON");
  delay(1000); // Wait for 1 second before the next tone
}