#define SWITCH_PIN 27  
#define PIR_PIN 15
#define LED_PIN 27
#define BUZZER_PIN 14   // new pin for buzzer

void setup() {
  pinMode(PIR_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);

  Serial.begin(115200);
}

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

  if (motionState == HIGH) {
    digitalWrite(LED_PIN, HIGH);      // LED ON
    digitalWrite(BUZZER_PIN, HIGH);   // Buzzer ON
    Serial.println("Motion Detected: LED & Buzzer ON");
  } 
  else {
    digitalWrite(LED_PIN, LOW);       // LED OFF
    digitalWrite(BUZZER_PIN, LOW);    // Buzzer OFF
    Serial.println("No Motion: OFF");
  }

  delay(100);
}