ds3231

// Date and time functions using RX8025 RTC connected via I2C and Wire lib

#include <Wire.h>
#include "Sodaq_DS3231.h"

char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };

void setup ()
{
    Serial.begin(57600);
    Wire.begin();
    rtc.begin();
}

uint32_t old_ts;

void loop ()
{
    DateTime now = rtc.now(); //get the current date-time
    uint32_t ts = now.getEpoch();

    if (old_ts == 0 || old_ts != ts) {
	old_ts = ts;
	Serial.print(now.year(), DEC);
	Serial.print('/');
	Serial.print(now.month(), DEC);
	Serial.print('/');
	Serial.print(now.date(), DEC);
	Serial.print(' ');
	Serial.print(now.hour(), DEC);
	Serial.print(':');
	Serial.print(now.minute(), DEC);
	Serial.print(':');
	Serial.print(now.second(), DEC);
	Serial.print(' ');
	Serial.print(weekDay[now.dayOfWeek()]);
	Serial.println();
	Serial.print("Seconds since Unix Epoch: ");
	Serial.print(ts, DEC);
	Serial.println();
    }
    delay(1000);
}