LED Hard Drive Clock Demo

This is a hard drive clock I built from a 3.5" hard drive, some tri-color LEDs and a PIC16F252 microcontroller. It works by shining the LEDs underneath a platter with a slot cut into it, and by timing the various colors it can produce an analog clock display as well as other patterns.

I got the idea from this page:
http://alan-parekh.com/projects/hard-drive-clock/

And here is my page with more details:
http://www.ian.org/HD-Clock/

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Видео LED Hard Drive Clock Demo канала Ian Smith