#include <Wire.h>
#include <Wire.h>
#include <Keypad.h>
#include <LiquidCrystal_I2C.h>
#include <Servo.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
const byte ligne = 4;
const byte colone = 4;

byte ligneporte[ligne] = {9, 8, 7, 6};
byte coloneporte[colone] = {5, 4, 3, 2};

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

Keypad keypad = Keypad(makeKeymap(clavier), ligneporte, coloneporte, ligne, colone);
Servo myservo;

int pos = 0;
int i = 0;
String password = "2896";
String code;

void setup() {
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  Wire.begin();
  lcd.begin(16, 2);
  myservo.attach(10);
}

void loop() {
  do {
    char key = keypad.getKey();
    if (key) {
      lcd.print(key);
      code = code + key;
      i++;
    }
  } while (i < 4);

  if (code == password) {
    digitalWrite(12, HIGH);
    for (pos = 90; pos >= 0; pos--) {
      myservo.write(pos);
      delay(10);
    }
    delay(2000);  
    digitalWrite(12, LOW);
    lcd.clear();
    lcd.print("Code correct, porte ouverte");
  } else {
    lcd.clear();
    lcd.print("Code incorrect, réessayez");
    delay(1000);
    digitalWrite(13, HIGH);
    delay(1000);
    digitalWrite(13, LOW);
    lcd.clear();
    
  }

  i = 0;
  code = "";
  delay(100);  
}