Spotted on Hackaday is this neat clock project which writes the time on a whiteboard.
This device runs on a PIC16F1454 microcontroller. The code for the project is available on GitHub. The micro is also connected to a 433MHz receiver. This allows a PC to keep track of the time, instead of having to include a real-time clock in the circuit.
There's also a link to a similar clock plotter project.
(Score: 4, Informative) by pkrasimirov on Friday February 27 2015, @09:38PM
Here: https://www.youtube.com/watch?v=4QgeQAiSmM8 [youtube.com]