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

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
RTC_DS3231 rtc;

char namaHari[7][12] = {"Min", "Sen", "Sel", "Rab", "Kam", "Jum", "Sab"};

void setup() 
{  
  lcd.begin(16,2); 
  rtc.begin(); 
  
  if (rtc.lostPower()) {
  rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));   
  }

  lcd.setCursor(0,0);
  lcd.print("   JAM DIGITAL  ");
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print(" LABELEKTRONIKA ");
  delay(1000);
  lcd.clear();
}

void loop() 
{
  DateTime now = rtc.now();
  lcd.setCursor(1,0);
  lcd.print(namaHari[now.dayOfTheWeek()]);
  lcd.print(",");
  printAngka(now.day());
  lcd.print("-");
  printAngka(now.month());
  lcd.print("-");
  printAngka(now.year());  
    
  lcd.setCursor(4,1);
  printAngka(now.hour());
  lcd.print(":");
  printAngka(now.minute());
  lcd.print(":");
  printAngka(now.second());
  
  delay(2000);

}
void printAngka(int digits){
   if(digits < 10){
   lcd.print('0');
   lcd.print(digits);
   }
   else lcd.print(digits);
 }