#include <Wire.h>
#include <RTClib.h>
#include <TM1637Display.h>
#include <Keypad.h>

RTC_DS3231 rtc;
const int CLK = 13;  // Pin CLK TM1637
const int DIO = 12;  // Pin DIO TM1637
TM1637Display display(CLK, DIO);

const byte ROW_NUM    = 4; // four rows
const byte COLUMN_NUM = 4; // four columns

char keys[ROW_NUM][COLUMN_NUM] = {
  {'1','2','3','A'},
  {'4','5','6','B'},
  {'7','8','9','C'},
  {'*','0','#','D'}
};

byte pin_rows[ROW_NUM] = {9, 8, 7, 6}; // connect to the row pinouts of the keypad
byte pin_column[COLUMN_NUM] = {5, 4, 3, 2}; // connect to the column pinouts of the keypad

Keypad keypad = Keypad(makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM);


void setup() {
  Serial.begin(9600);
  

  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__)));
  }
  display.setBrightness(0x0f);
}

void loop() {
  char key = keypad.getKey();
  

  DateTime now = rtc.now();

  int hours = now.hour();
  int minutes = now.minute();

  if (key) {
    // Jika tombol ditekan, tampilkan di TM1637
    display.showNumberDec(key - '1');
    int formattedTime = (hours *100) + minutes;
    display.showNumberDecEx(formattedTime, 0b11100000, true);
    delay(10000); // Tampilkan selama 1 detik (sesuaikan sesuai kebutuhan)
    display.clear();
  }
  // Format the time as HH:MM
  

  // Display the time on TM1637
  

   // Update every second
}