#include <LiquidCrystal.h>
#include "RTClib.h"

LiquidCrystal lcd(12,11,10,9,8,7);
RTC_DS1307 rtc;


int button1 = A0;//sec
int button2 = A1;//min
int button3 = A2;//hour
int mSEC = 0;
int mMIN = 0;
int mHOUR = 0;
void setup() {
  lcd.begin(16,2);
  rtc.begin();
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
  pinMode(button3, INPUT_PULLUP);


}

void loop() {
  if(digitalRead(button3)== LOW){
    mHOUR++;
  if(mHOUR >= 60) mHOUR= 0;
  }
  if(digitalRead(button2)== LOW){
    mMIN++;
  if(mMIN >= 60) mMIN= 0;
  }
  if(digitalRead(button1)== LOW){
    mSEC++;
  if(mSEC >= 24) mSEC= 0;
  }
  textPrint(mSEC, mMIN, mHOUR);
  delay(300);
}
void textPrint (int x, int y, int z){
  lcd.clear();
  char str[8];
  sprintf (str, " %02d:%02d:%02d ", x, y, z);
  lcd.setCursor(7,1);
  lcd.print(str);
  ura();
}
  
  
  

void ura(){
  static int alarm = 0;
  DateTime now = rtc.now();
  int ure = now.hour();
  int minute = now.minute();
  int sekunde = now.second();
  char ura[14];
  sprintf (ura, " %02d:%02d:%02d ", ure, minute, sekunde);
  lcd.setCursor(7,0);
  lcd.print(ura);
  if(sekunde == mSEC && minute == mMIN && ure == mHOUR){
    alarm == HIGH; 
  }
  else if (alarm && (sekunde > (mSEC + 15))) alarm = LOW;
  digitalWrite(13, alarm);



}