Every maker needs a geeky wall clock and the geekiest way to get one is to build your own. With so many modular and open-source options, building your own decorative clock is far from the most ...

Controlling the signals sent to the slave clocks and keeping them synchronized are the main tasks of this master clock. The National Time synchronization protocol is supported by the firmware in the ...

I like this. Following on from the creative use of LEDs with the Periodic Table, check out this smart shelving system, similarly driven by an Arduino and using LEDs, that serves as a clock. Not a ...