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.

Here’s a couple of clocks that use Arduino boards to control inexpensive clockworks. The concept is quite simple, and perhaps best outlined by [Matt Mets’] article on the subject. As it… ...

Makers and Arduino enthusiasts searching for a project to keep them busy this weekend may be interested in this awesome Arduino Fibonacci ... – It uses a DS3231 I2C real-time clock with battery ...