POV Display

I have been interested in persistence-of-vision (POV) displays since I saw Accenture’s life size version in their Chicago Technology Office. I created one using an MSP430 and three 8-bit shift registers, one for each base color, red ,green, and blue. The display is made out of 8 rapidly spinning RGB LEDs. I used a magnetometer to measure the system’s RPM and matched the LED refresh frequency  to the desired vertical resolution times the rounds-per-second of the system. The result is shown below.

Hazard warning: the AA batteries do fly off and hit you in the head if not properly secured.

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Side View of POV System
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Side View 2 of POV System