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

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


char namaHari[7][12] = {"Ahad", "Senin", "Selasa", "Rabu", "Kamis", "Jumat", "Sabtu"};

void setup() 
{  
  pinMode (10, OUTPUT);
  lcd.begin(20,4); 
  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("   XII-6 ");
  delay(1000);
  lcd.clear();
}

void loop() 
{
  DateTime now = rtc.now();
  lcd.setCursor(2,0);
  lcd.print(namaHari[now.dayOfTheWeek()]);
  lcd.print(",");
  printAngka(now.day());
  lcd.print("-");
  printAngka(now.month());
  lcd.print("-");
  printAngka(now.year());  
    
  lcd.setCursor(5,1);
  printAngka(now.hour());
  lcd.print(":");
  printAngka(now.minute());
  lcd.print(":");
  printAngka(now.second()); tone(10,1000,50);

  lcd.setCursor(2,3);
  lcd.print("SMAN 1 BANDUNG");
  
  
  delay(5000);

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