const int pirPin = 2;

void setup() {
  Serial.begin(9600);
  pinMode(pirPin, INPUT);
  Serial.println("PIR Sensor warming up...");
  delay(30000); // wait 30s for sensor to stabilize
  Serial.println("Ready to detect motion!");
}

void loop() {
  int pirValue = digitalRead(pirPin);
  
  if (pirValue == HIGH) {
    Serial.println("Motion detected!");
  } else {
    Serial.println("No motion");
  }

  delay(500);
}