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The answer, of course, is a word clock. This is actually [Eric's] second version of a word clock. Like the first one, it uses 114 LEDs to back light the words on the display.
In his first iteration he used an Arduino to drive a Charlieplex array of lights. It was an 11 by 10 grid, plus four LEDs … Read the rest
[Michael Ross] is a photographer who has been getting into light painting recently. He’s come up with his own RGB light wand to create some amazing images, and also written a very, very thorough tutorial (PDF warning) on how to build your own light wand.
The light wand is based on an Arduino Mega board and uses an RGB … Read the rest
[Synoptic Labs] stumbled upon an RGB light strip with individually-controllable LEDs. The strip uses 5 volts and is controlled by an HL1606. Because the strips are hard to find, this chip is mostly undocumented and he had trouble driving the strip. He was unable to get it working until he met with [John Cohn], who had previously reverse-engineered the … Read the rest
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