/*
  https://github.com/Makuna/Rtc
  Arduino Real Time Clock library.
*/

#include <ThreeWire.h>
#include <RtcDS1302.h>

ThreeWire myWire(6, 5, 4); // IO, SCLK, CE
RtcDS1302<ThreeWire> Rtc(myWire);

bool rtclock_err;

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

  RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);
  Rtc.SetDateTime(compiled + 0 * 8 * 60 * 60);

  //Rtc.SetDateTime(RtcDateTime(2026,8,1,20,50,00));
}

void loop() {
  static char date[11];
  static char time[9];

  RtcDateTime dt = Rtc.GetDateTime();

  snprintf(date, 11, "%04u-%02u-%02u", dt.Year(), dt.Month(), dt.Day());
  snprintf(time, 9, "%02d:%02d:%02d", dt.Hour(), dt.Minute(), dt.Second());

  Serial.print(date);
  Serial.print(" ");
  Serial.print(time);
  Serial.println("");

  delay(300);
}