#define PIR_PIN 12  // PIR motion sensor connected to digital pin 2
#define LED_PIN 10 // LED connected to digital pin 13

void setup() {
  pinMode(PIR_PIN, INPUT); // Set PIR sensor pin as input
  pinMode(LED_PIN, OUTPUT); // Set LED pin as output
  Serial.begin(9600); // Initialize serial communication
}

void loop() {
  int motionState = digitalRead(PIR_PIN); // Read PIR sensor state

  if (motionState == HIGH) {
    // Motion detected
    digitalWrite(LED_PIN, HIGH); // Turn on LED
    Serial.println("Motion detected!");
    delay(1000); // Delay to avoid rapid toggling due to continuous motion
  } else {
    // No motion
    digitalWrite(LED_PIN, LOW); // Turn off LED
  }
}