Digital clock

Various files (code, schematics, …) for my binary clock built around a pic16f690. Note that it’s built using a 20 mHz crystal, i is not ideal but it’s what I had handy. If you read the code, you will see I that I make an adjustment to the preload every 1/80 of a second, this is because I didn’t have the load capacitance for the crystal and so it was a little off. A 32.768 kHz would be more precise through temperature changes. If you do change the crystal, don’t forget to modify the code acordingly.

Source for mplab
Schematics in gschem format (email for a pic)
Traces