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

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
RTC_DS3231 rtc;


char nameDay[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   ");
lcd.setCursor(0,1);
lcd.print("   LAB LISTRIK   ");
delay(1000);
lcd.clear();
}

 void loop() 
 {
 DateTime now = rtc.now();
 lcd.setCursor(2,0);
 lcd.print (nameDay[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(8,1000,50);
 lcd.setCursor (2,3);
 lcd.print (" SMKN 2 SURAKARTA ");


 delay(250);

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