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

RTC_DS1307 rtc;

void setup() {
  Serial.begin(9600);
  if (!rtc.begin()) {
    Serial.println("RTC not found");
    while (1);
  }
}

void loop() {
  DateTime now = rtc.now();
  Serial.print(now.year());
  Serial.print('/');
  Serial.print(now.month());
  Serial.print('/');
  Serial.print(now.day());
  Serial.print(" ");
  Serial.print(now.hour());
  Serial.print(':');
  Serial.print(now.minute());
  Serial.print(':');
  Serial.println(now.second());
  delay(1000);
}