#include <Keypad.h>

#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
#include<Servo.h>
#define role 9  //role
Servo servo;
#define yled 7   //sarı led
#define kled 6   // kırmızı  led
#define buzzer 8



const byte satir = 4;  //rows
const byte sutun = 4;  //columbs
char sifre[4] = {'1', '2', '3', '4'}; 
char sifre1[4]; 
char key;  
int i = 0;  
char keys[4][4] = {  
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte satir_pins[4] = {5, 4, 3, 2};  
byte sutun_pins[4] = {A3, A2, A1, A0};    

Keypad keypad = Keypad(makeKeymap(keys), satir_pins, sutun_pins, 4, 4);  


byte customChar9[8] = { 
  
  0b11111, 
  0b11111,
  0b11111,  
  0b11111,
  0b11111,
  0b11111,
  0b11111,
  0b11111
};
byte customChar8[8] = {
  0b11110,
  0b11110,
  0b11110,
  0b11110,
  0b11110,
  0b11110,
  0b11110,
  0b11110
};
byte customChar7[8] = {
  0b11100,
  0b11100,
  0b11100,
  0b11100,
  0b11100,
  0b11100,
  0b11100,
  0b11100
};
byte customChar6[8] = {
  0b11000,
  0b11000,
  0b11000,
  0b11000,
  0b11000,
  0b11000,
  0b11000,
  0b11000
};
byte customChar5[8] = {
  0b10000,
  0b10000,
  0b10000,
  0b10000,
  0b10000,
  0b10000,
  0b10000,
  0b10000
};
byte customChar4[8] = {
  0b00001,
  0b00011,
  0b00011,
  0b00111,
  0b00111,
  0b01111,
  0b01111,
  0b11111
};
byte customChar3[8] = {
  0b00000,
  0b00010,
  0b00010,
  0b00110,
  0b00110,
  0b01110,
  0b01110,
  0b11110
};
byte customChar2[8] = {
  0b00000,
  0b00000,
  0b00000,
  0b00100,
  0b00100,
  0b01100,
  0b01100,
  0b11100
};
byte customChar1[8] = {
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b01000,
  0b01000,
  0b11000
};

byte customChar0[8] = {
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b10000
};

void setup() {
  pinMode(role, OUTPUT);
  servo.attach(13);
  pinMode(yled, OUTPUT);  
  pinMode(buzzer, OUTPUT);
  pinMode(kled, OUTPUT);
  lcd.createChar(0, customChar0);
  lcd.createChar(1, customChar1);
  lcd.createChar(2, customChar2);
  lcd.createChar(3, customChar3);
  lcd.createChar(4, customChar4);
  lcd.createChar(5, customChar5);
  lcd.createChar(6, customChar6);
  lcd.createChar(7, customChar7);
  lcd.createChar(8, customChar8);
  lcd.createChar(9, customChar9);
  lcd.begin(16, 2);
  lcd.backlight(); 
  
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("GOKTEK OTOMASYON");
  
  for (int i = 1; i <= 13; i++)  
  {


    for (int k = 6; k <= 9; k++)
    {
      lcd.setCursor(i, 1); lcd.write((uint8_t)k);
      delay(100);

    }

  }

  lcd.clear();
  lcd.setCursor(0, 0); 
  lcd.print("MACROHILL");
  lcd.setCursor(0, 1);
  lcd.print("SIFRELI KAPI");   
  delay(2000);
  lcd.clear();  
  lcd.setCursor(0, 0); 
  lcd.print("SIFREYI GIRINIZ:");    
  Serial.begin(9600);
  
}

void loop() {
  servo.write(0);
  
digitalWrite(kled,LOW);
digitalWrite(yled,LOW);
char key = keypad.getKey();
     

  if (key)   
  {
    sifre1[i++] = key; 

    lcd.setCursor(i, 1); 
    lcd.print("*");   
    digitalWrite(buzzer,HIGH);
delay(100);
digitalWrite(buzzer,LOW);// 
delay(100);
 digitalWrite(buzzer,HIGH);
delay(100);
digitalWrite(buzzer,LOW);// 
  }

  if (i == 4)
  { delay(200);
    char sifre[4] = {'1', '2', '3', '4'}; 
 
    if ((strncmp(sifre1, sifre, 4) == 0))  
    {
      lcd.clear();
      lcd.setCursor(0, 0);
      servo.write(180);
      lcd.print("SIFRE DOGRU!"); 
      digitalWrite(yled, HIGH);
      digitalWrite(role,HIGH);   //  //röle pinine high veriyoruz böylece no com ucuna bağladığınız hattan akım geçmez, ama nc com ile bağlantı yaparsanız bu durumda akım geçer.
      delay(1000); // 2 Saniye Bekle 
      digitalWrite(role, LOW); // röle pinine low veriyoruz böylece no com ucuna bağladığınız hattan akım geçer, ama nc com ile bağlantı yaparsanız bu durumda akım geçmez.
      delay(1000);
      digitalWrite(kled, LOW);
      digitalWrite(buzzer, HIGH);
      delay(100);
      digitalWrite(buzzer, LOW);
      delay(100);
      digitalWrite(buzzer, HIGH);
      delay(100);
      digitalWrite(buzzer, LOW);
      delay(1000);
      lcd.clear();
      lcd.setCursor(0, 0); 
      lcd.print("SIFREYI GIRINIZ");  
      i = 0;
    }

    else
    {
      lcd.clear();
      lcd.setCursor(0, 0); 
      lcd.print("SIFRE YANLIS!!!");  
      digitalWrite(yled, LOW);
      digitalWrite(kled, HIGH);
      digitalWrite(buzzer, HIGH);
      delay(1000);
      digitalWrite(buzzer, LOW);
      delay(1000);
      lcd.clear();
      lcd.setCursor(0, 0); 
      lcd.print("SIFREYI GIRINIZ"); 
      i = 0;
    }
  }
}