// Include the necessary libraries for the ESP32 and the Arduino platform
#include <stdio.h>
#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <ESP32Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int BARIS = 4;
const int KOLOM = 4;

char keys[BARIS][KOLOM] = { {'1', '2', '3', 'A'}, {'4', '5', '6', 'B'}, {'7', '8', '9', 'C'}, {'*', '0', '#', 'D'}
};

byte rowPins[BARIS] = {26, 27, 19, 18};
byte colPins[KOLOM] = {5, 4, 2, 15};

//Keypad customKeypad = Keypad(makeKeymap(Keys), rowPins, colPins, ROWS, COLS);  //Masukkan info keypad pada library
Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, BARIS, KOLOM);

char Key;
int number = 0;
int password = 1379;
int line=1;
int col=10;

/*
 lcd.setCursor(0, 1);
  lcd.clear();
*/

// Define the pin numbers for the pushbutton and the LED
#define LED_PIN 13
#define BUZZER_PIN 12
#define BTN_PIN 14
#define Servo 25

const int servoPin = 25;

Servo servo;

void setup() {
  // Initialize the serial port for debugging purposes
   Serial.begin(9600);
  lcd.init();
  lcd.setBacklight(HIGH);

  // Set the pin modes for the pushbutton, LED, and buzzer
  pinMode(BTN_PIN, INPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("Eenter Password:");
  Key = keypad.getKey();
  if (Key)
  {   
      
     lcd.setCursor(line, col);
     lcd.print(Key);
      line++; // Move the cursor to the next line
      lcd.setCursor(1,10);
       Serial.print(Key);
      delay(250);
      }
  // Check if the pushbutton has been pressed
  if (digitalRead(BTN_PIN) == 0) {
    // The pushbutton is pressed
    // Turn on the LED and the buzzer
    digitalWrite(LED_PIN, HIGH);
    digitalWrite(BUZZER_PIN, HIGH);
  } else {
    // The pushbutton is not pressed
    // Turn off the LED and the buzzer
    digitalWrite(LED_PIN, LOW);
    digitalWrite(BUZZER_PIN, LOW);
  }
}