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

#define CLK 8
#define DIO 9

RTC_DS1307 rtc;
TM1637Display display(CLK, DIO);

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

  if (!rtc.begin()) {
    Serial.println("RTC not detected!");
    while (1);
  }

  // You can remove the lostPower() check and the time adjustment here

  display.setBrightness(0x0f); // Set brightness to maximum
}

void loop() {
  DateTime now = rtc.now();
  int displaytime = now.hour() * 100 + now.minute();

  Serial.println(displaytime);
  display.showNumberDec(displaytime, false);
  delay(1000);
}