#define PIR_PIN 2
#define ALERT_LED 13

void setup() {
  pinMode(PIR_PIN, INPUT);
  pinMode(ALERT_LED, OUTPUT);
  Serial.begin(9600);
  Serial.println("System Ready. Waiting for motion...");
}

void loop() {
  int motionState = digitalRead(PIR_PIN);
  
  if (motionState == HIGH) {
    digitalWrite(ALERT_LED, HIGH);
    Serial.println("⚠ Motion Detected! Security Alert!");
    delay(1000);  // Delay to avoid multiple alerts
  } else {
    digitalWrite(ALERT_LED, LOW);
  }
}