#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);
#include <RTClib.h>
RTC_DS1307 rtc;
DateTime waktu;
char buffer[2];
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  rtc.begin();
  lcd.init();
  lcd.backlight();
  lcd.print("ESP 32");
  delay(1000);}
void loop() {
waktu = rtc.now();
sprintf(buffer,"%2d/%2d/%2d",waktu.day(),waktu.month(),waktu.year());
lcd.setCursor(0,1);
lcd.print(buffer);
delay(1000);
}