#define PIR_PIN 13 
#define BUZZ_PIN 8

void setup() {
  Serial.begin(9600);
  pinMode(PIR_PIN, INPUT);
  pinMode(BUZZ_PIN, OUTPUT);

  Serial.println("PIR Sensor warming up...");
  digitalWrite(BUZZ_PIN, HIGH); // keep buzzer OFF initially
  delay(500);
  Serial.println("PIR Ready!");
}

void loop() {
  int state = digitalRead(PIR_PIN);

  if (state == HIGH) {  // motion detected → close to sensor
    digitalWrite(BUZZ_PIN, LOW);  // Buzzer ON
    Serial.println("Object Near → Buzzer ON!");
  } else {              // no motion → away from sensor
    digitalWrite(BUZZ_PIN, HIGH); // Buzzer OFF
    Serial.println("Object Away → Buzzer OFF");
  }

  delay(600);
}