Peggy is an "open source lighted pegboard design" from Evil Mad Scientist Labs, released to coincide with the anniversary of the Great Boston Mooninite Scare of 2007, when law enforcement mistook lite-brites advertising a cartoon for terrorist paraphernalia and spent $2,000,000 running around, flapping their arms, screaming, and pulling their hair.

Photobucket

This is an easy way to drive a lot of LEDs– up to 625– in a big matrix. You can make an LED sign for your window, a geeky valentine for your sweetie, one bad-ass birthday card, or freak the holy bejesus out of Boston. Your call. It’s a versatile, high-brightness display.

The display can run off an AC adapter or batteries (3 ‘D’ cells), and is designed to run as many green/blue/white/violet LEDs as you care to solder into the holes, all with excellent brightness. The board can accommodate LEDs in several common sizes: 3mm, 5 mm (standard T-1 3/4 size), and 10 mm. A photosensor is provided that can automatically turn off the display in bright daylight or incandescent light.

Link

via Boing Boing