DIY LED Matrix Pong Clock

This neat LED clock mimics the display of the Pong video game to show the time as two paddles play back and forth. The game plays on automatically and updates the time by scoring a point.  It also has a built in menu to change the clock mode and set the time.The project is built on 2 green LED matrix...
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Controlling Ten Thousand RGB LEDs

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RGB LEDs are awesome – especially the new, fancy ones with the WS2812 RGB LED driver. These LEDs can be individually controlled to display red, green, and blue, but interfacing them with a microcontroller or computer presents a problem: microcontrollers generally don’t have a whole lot of RAM to store an...
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POV Display with an Element of Danger

Persistence of vision displays are always cool, although we must admit this one looks like it could very well explode at high speeds… Safety concerns aside, this desk fan based display provides a great starting point for learning about making POV displays. It makes use of an old cellphone battery, an ATmega8,...
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