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Published on Apr 25, 2012
This is my hard drive pov clock; these have been done quite a bit but seems like a fun project. The time is kept with a Chronodot from adafruit.com The microconroller is a arduino uno with a IR opto-sensor triggering interrupts on every rotation. This allows for precise control over the LED's position. You can find instructables for these at www.instructables.com which is where I learned to make this one.