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

RTC_DS3231 rtc;

const int segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 9, 10};  // Tambahkan pin 10 untuk titik desimal

void setup() {
  for (int i = 0; i < 9; i++) {  // Sesuaikan jumlah pin yang sekarang adalah 9
    pinMode(segmentPins[i], OUTPUT);
  }

  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }

  if (rtc.lostPower()) {
    Serial.println("RTC lost power, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
}

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

  displayDigit(now.hour() / 10);
  delay(5);
  clearDisplay();

  displayDigit(now.hour() % 10);
  delay(5);
  clearDisplay();

  displaySeparator();
  delay(5);
  clearDisplay();

  displayDigit(now.minute() / 10);
  delay(5);
  clearDisplay();

  displayDigit(now.minute() % 10);
  delay(5);
  clearDisplay();

  displaySeparator();
  delay(5);
  clearDisplay();

  displayDigit(now.second() / 10);
  delay(5);
  clearDisplay();

  displayDigit(now.second() % 10);
  delay(5);
  clearDisplay();
}

void displayDigit(int digit) {
  for (int i = 0; i < 7; i++) {
    digitalWrite(segmentPins[i], (digit >> i) & 1);
  }
}

void displaySeparator() {
  digitalWrite(segmentPins[7], HIGH);
}

void clearDisplay() {
  for (int i = 0; i < 8; i++) {
    digitalWrite(segmentPins[i], LOW);
  }
}