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Topic: Year long clock with alarm outputs (Read 54 times) previous topic - next topic


 Can you set the RTC DS3231 for multiple alarms ( Time, Days, Months) using the Arduino uno as the controller? I would like to build a controller to turn on and off outside lights two times a month for about 2 hours on different days for one year.
Example:  01/03/2018, on 18:30, off 21:00.
          01/17/2018, on 18:30, off 21:00.
          02/07/2018, on 18:30, off 20:30
This would continue for the complete year.

Mims, Fl.


Apr 11, 2018, 08:51 pm Last Edit: Apr 11, 2018, 08:52 pm by jremington
The RTC offers two programmable time of day alarms. Your program will have to handle the dates.


The PCF8563 has a day alarm, 1 - 31 and a weekday alarm 0-6.
$50SAT is now Silent (but probably still running)

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