#include <WiFi.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);
RTC_DS3231 rtc;

char namaHari[7][12] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
char namaBulan[12][15] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", 
                        "Aug", "Sep", "Oct", "Nov", "Dec"};

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

void loop() {
  DateTime now = rtc.now();

  lcd.setCursor(0,0);
  lcd.print(namaHari[now.dayOfTheWeek()]);
  lcd.print(", ");
  lcd.print(namaBulan[now.month() - 1]);
  lcd.print(" ");
  printAngka(now.day());
  lcd.print(" ");
  lcd.print(now.year());

  lcd.setCursor(0,1);
  lcd.print("Time : ");
  printAngka(now.hour()); 
  lcd.print(":"); 
  printAngka(now.minute());
  
}

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