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.
Weekend hiatus
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This weekend a number of friends of the North Texas Troublemakers (of which
my wife and I are members, too) are gathering at our annual invitation-only...
21 hours ago
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