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

LiquidCrystal lcd (12,11,5,4,3,2);
RTC_DS3231 rtc;
char namaHari [7][12]= {"Minggu","Senin","Selasa","Rabu","Kamis","Jumat","Sabtu"};

void setup() {
pinMode(8, 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("LAB LISTRIK");
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("SMKN 2 JAMBI");

delay(1000);

}

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