#include <Servo.h>
#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>
#include <Keypad.h>

RTC_DS3231 rtc;
Servo myServo;
LiquidCrystal_I2C lcd(0x27, 16, 2);
int led = 2;
int buzzer = 4;

void setup() {
  pinMode(led, OUTPUT);
  pinMode(buzzer, OUTPUT);
  myServo.attach(3);
  myServo.write(0);
  lcd.begin(16, 2);
  lcd.backlight();

  Serial.begin(9600);
  //inisialisasi rtc
  if (!rtc.begin()) {
  Serial.println("RTC tidak terdeteksi!");
  while (1);
  //set waktu
  rtc.adjust(DateTime(F(__TIME__)));

  Serial.println("RTC siap!");
  }

  lcd.setCursor(0, 0);
  lcd.print("Initializing...");
  delay(2000);
  lcd.clear();
}


void loop() {
  //mengambil data pada rtc dan ditampilkan di lcd
  DateTime now = rtc.now();

  lcd.setCursor(0, 0);
  lcd.print("Time: ");
  lcd.print(now.hour());
  lcd.print(":");
  lcd.print(now.minute());
  lcd.print(":");
  lcd.print(now.second());
  //servo
  if (now.second() == 0) {
    myServo.write(90);
    delay(2000);
    myServo.write(0);
  }
}