#include <Servo.h>
#include <LiquidCrystal.h>
#include <Keypad.h>

// Initialize the servo on pin 6
Servo myservo;
int servoPin = 6;

// Initialize the PIR sensor on pin 13
int pirPin = 13;
int pirState = LOW;

// Initialize the LCD on pins 12, 11, 5, 4, 3, 2
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

// Keypad setup
const byte ROWS = 4; // Four rows
const byte COLS = 4; // Four columns
char keys[ROWS][COLS] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};
byte rowPins[ROWS] = {5, 4, 3, 2}; // Connect to the row pinouts of the keypad
byte colPins[COLS] = {A0, A1, A2, A3}; // Connect to the column pinouts of the keypad
Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup() {
  // Set up the servo
  myservo.attach(servoPin);
  myservo.write(0); // Initial position

  // Set up the PIR sensor
  pinMode(pirPin, INPUT);

  // Set up the LCD
  lcd.begin(16, 2);
  lcd.print("Enter Code:");
}

void loop() {
  pirState = digitalRead(pirPin);

  if (pirState == HIGH) {
    lcd.clear();
    lcd.print("Enter Code:");
    char key = keypad.getKey();
    if (key) {
      lcd.setCursor(0, 1);
      lcd.print(key);
      // Add your code here to handle the entered key
      // For example, check if the entered code is correct
      if (key == 'A') { // Example: 'A' is the correct code
        myservo.write(90); // Unlock position
        delay(500000); // Keep it unlocked for 5 seconds
        myservo.write(0); // Lock position
      }
    }
  } else {
    lcd.clear();
    lcd.print("No Motion");
  }
}