#include <Wire.h>
//#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

#define modeButton 4
#define plusButton 3
#define minusButton 2
#define BUZZER_PIN A0
int mode; 

int hour; int min; int year;
void setup() {
  Wire.begin();
  lcd.begin(0x27, 16, 2); lcd.backlight();
  pinMode(modeButton, INPUT_PULLUP);
  pinMode(BUZZER_PIN, OUTPUT);
  beep();
}

void loop() {
  if(digitalRead(modeButton)== LOW){
    mode++; beep();
  }
  if(mode== 1 && digitalRead(plusButton)== LOW ){ beep(); hour+=1; } 
  else if(mode== 1 && digitalRead(minusButton)== LOW){ beep(); hour-=1; }
   // printLcd(3,0, "Adj Alarm 1");
  
    
    else if(mode == 2){ beep(); printLcd(3,0, "Adj Alarm 2");

    }else if(mode == 3){ beep(); printLcd(3,0, "Adj Alarm 3");

    }else if(mode == 4){ beep(); printLcd(3,0, "Adj Alarm 4");

    }
    if (mode > 4){beep(); mode = 0; printLcd(0,0,"               ");}
    //printLcd(0,0, String(mode));
    
  printLcd(0,1,String(hour));
  printLcd(2,1,":");printLcd(3,1,String(min));
  printLcd(6,1,String(year));
  delay(1000);
}
void printLcd (int shuru, int sesh, String myWords) { // For LCD Display
  lcd.setCursor(shuru, sesh);   lcd.print(myWords);
}
void beep() {
  //lcd.backlight();
  tone(BUZZER_PIN, 3700, 170); 
  //lcd.noBacklight();
}