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.
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.
via Boing Boing