This bit gadget lets you play some head-to-head pong utilizing a spinning LED display. We’re truly in like with the design. You get a quite great concept of the Persistence of Vision element of the develop by taking a look at this picture. however hearing [Dennis] discuss the entire style in the video after the break has us truly loving its features.
He’s utilizing the head from a VCR as the spinning motor. The screen itself utilizes a vertical row of LEDs with a bit of wax paper as a diffuser. These are present restricted by a 1k resistor for every of the eight pixels. They’re driven by a picture 16F690 however you may have already discovered that there’s no battery on the spinning part of the board. It gets voltage as well as ground from a pair of brushes which he fabricated himself. To prevent having to do the exact same thing to map the manage buttons in the base to the spinning board he came up with something special. There’s a downward dealing with phototransisor which registers LED signals from the base to relocation the paddles up or down.
If you like this job inspect out the POV death Star.
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