#include <LiquidCrystal_I2C.h>

#define pl 3
#define mn 2
#define enter 4

int menu=0, Enter=0;

LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

void setup(){
  Serial.begin(9600);
  lcd.init(); // initialize the lcd
  lcd.backlight();
  pinMode(pl, INPUT);
  pinMode(mn, INPUT);
  pinMode(enter, INPUT);
}

void loop(){
  Menyu();
  MenyuHome();
}
void Menyu(){
  if(digitalRead(pl)==HIGH){
    menu++;
    Serial.print(menu);
  }
  else if(digitalRead(mn)==HIGH){
    menu--;
    Serial.print(menu);
  }
  else if(digitalRead(enter)==HIGH){
    Enter=Enter+1;
    delay(500);
    lcd.clear();
    Serial.print(Enter);
  }
}
void MenyuHome(){
  switch(menu){
    //Sozlamalar bo'limi
    case 0:{
      if(Enter==0){
        lcd.setCursor(0, 0);
        lcd.print("> Sozlamalar");
        lcd.setCursor(0, 1);
        lcd.print("  Ishlashtish");
      }
      else if(Enter==1){
        Sozlamalar();
      }
    }break ;
    //Ishlatish bo'limi
    case 1:{
      lcd.setCursor(0, 0);
      lcd.print("  Sozlamalar");
      lcd.setCursor(0, 1);
      lcd.print("> Ishlashtish");
      menu=1;
    }break;
    //takrorlash
    default:{
      if(menu<0){
        menu=1;
      }
      else{
        menu=0;
      }
    }break;

  }
}
void Sozlamalar(){
      lcd.setCursor(0, 0);
      lcd.print("Kirish vaqti");
      lcd.setCursor(0, 1);
      lcd.print("[8]: 30 : 0 ");
}