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

RTC_DS1307 rtc;

int hourButtonPin = 2; // کلید تنظیم ساعت
int minuteButtonPin = 3; // کلید تنظیم دقیقه

void setup() {
  pinMode(hourButtonPin, INPUT_PULLUP);
  pinMode(minuteButtonPin, INPUT_PULLUP);

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

  if (!rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }

  Serial.begin(9600);
}

void loop() {
  DateTime now = rtc.now();
  int hour = now.hour();
  int minute = now.minute();

  if (digitalRead(hourButtonPin) == LOW) {
    delay(200); // debounce
    if (hour < 23) {
      rtc.adjust(DateTime(now.year(), now.month(), now.day(), hour + 1, minute, 0));
    } else {
      rtc.adjust(DateTime(now.year(), now.month(), now.day(), 0, minute, 0));
    }
  }

  if (digitalRead(minuteButtonPin) == LOW) {
    delay(200); // debounce
    if (minute < 59) {
      rtc.adjust(DateTime(now.year(), now.month(), now.day(), hour, minute + 1, 0));
    } else {
      rtc.adjust(DateTime(now.year(), now.month(), now.day(), hour, 0, 0));
    }
  }

  Serial.print(hour);
  Serial.print(":");
  if (minute < 10) {
    Serial.print("0");
  }
  Serial.println(minute);

  delay(1000);
}