#include <Servo.h>

int pirPin = 2;     // pin to read the PIR sensor
int photoPin = A0;  // pin to read the photoresistor
int ledPin = 11;     // pin to control the LED
int buzzerPin = 12;  // pin to control the buzzer
int servoPin = 9;   // pin to control the servo motor

Servo myServo;

void setup() {
  pinMode(pirPin, INPUT);
  pinMode(photoPin, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  Serial.begin(9600);
  myServo.attach(servoPin);
}

void loop() {
  // read PIR sensor
  int pirValue = digitalRead(pirPin);
  if (pirValue == HIGH) {
    digitalWrite(ledPin, HIGH);
    digitalWrite(buzzerPin, HIGH);
    delay(500);
    digitalWrite(buzzerPin, LOW);
    myServo.write(90); // unlock the door
  } else {
    digitalWrite(ledPin, LOW);
    digitalWrite(buzzerPin, LOW);
    myServo.write(0); // lock the door
  }

  // read photoresistor
  int photoValue = analogRead(photoPin);
  Serial.print("Light level: ");
  Serial.println(photoValue);
  if (photoValue > 500) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW);
  }

  delay(2000);
}