#include <Servo.h>

const int ledPin = 13;          // LED connected to digital pin 13
const int buzzerPin = 8;        // Buzzer connected to digital pin 8
const int servoPin = 9;         // Servo motor connected to digital pin 9
const int motionSensorPin = 2;  // Motion sensor connected to digital pin 2

Servo lockServo;                // Create a servo object

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  pinMode(motionSensorPin, INPUT);
  lockServo.attach(servoPin);
  Serial.begin(9600);           // Initialize serial communication
}

void loop() {
  // Check for motion detection
  bool motionDetected = digitalRead(motionSensorPin);

  if (motionDetected) {
    // Motion detected, trigger security system
    digitalWrite(buzzerPin, HIGH);
    lockDoor();
    Serial.println("Motion Detected!");
    blinkLED(3); // Blink LED 3 times
    // Add feedback for servo motor movement
    moveServo(90); // Move the servo to 90 degrees
    delay(1000);    // Wait for a second
    moveServo(0);  // Move the servo back to 0 degrees
    buzzerTone(1000); // Generate a buzzer tone for 1 second
  } else {
    // No motion, deactivate security system
    digitalWrite(buzzerPin, LOW);
    unlockDoor();
    Serial.println("No Motion Detected.");
  }

  // Add some delay here to avoid rapid checks, adjust as needed
  delay(1000);
}

void lockDoor() {
  // Rotate the servo motor to lock the door position
  lockServo.write(90); // Adjust the angle as needed for your door lock mechanism
}

void unlockDoor() {
  // Rotate the servo motor to unlock the door position
  lockServo.write(0); // Adjust the angle as needed for your door lock mechanism
}

void blinkLED(int times) {
  for (int i = 0; i < times; i++) {
    digitalWrite(ledPin, HIGH); // Turn on LED
    delay(500);                  // Wait
    digitalWrite(ledPin, LOW);  // Turn off LED
    delay(500);                  // Wait
  }
}

void moveServo(int angle) {
  lockServo.write(angle); // Move the servo to the specified angle
}

void buzzerTone(int toneDuration) {
  // Generate a tone with the buzzer
  tone(buzzerPin, 1000); // You can adjust the frequency as needed
  delay(toneDuration);   // Adjust the duration of the tone
  noTone(buzzerPin);     // Turn off the tone
}