The other is a DS3231 real time clock with built-in crystal. A CR2032 keeps it all running. The main body, the outer ring, ... Posted in Arduino Hacks, clock hacks Tagged arduino, DS3231, watch.

Posted in Arduino Hacks, clock hacks Tagged arduino, DS3231, watch. City Clock Is Beautiful Tribute To Parisian Architecture. January 4, 2020 by Lewin Day 9 Comments ...