void setup() {
  pinMode(8, INPUT);   // Set the PIR pin as an input
  pinMode(13, OUTPUT);  // Set the LED pin as an output
  pinMode(3, OUTPUT);   // Set the Buzzer pin as an output
  Serial.begin(9600);       // Initialize serial communication for debugging
}

void loop() {
  int val = digitalRead(8);   // Read PIR sensor value

  if (val == HIGH) {           // Check if motion is detected
    digitalWrite(13, HIGH); // Turn on the LED
    tone(3, 1000);
    Serial.println("Motion detected!"); // Print message to the serial monitor

  } else {
    digitalWrite(13, LOW);  // Turn off the LED
    Serial.println("No Motion detected!"); // Print message to the serial monitor
    noTone(3);
  }
  delay(1000);
}