70 LED matrix in a jack-o-lantern

Hack a Day made a Jack-o-lantern that shows animations on a LED matrix.

Mike shows you how to design and run a multiplexed display with an AVR. Then he guts a pumpkin and installs 70 LEDs with power tools.

Gourds, LEDs, and power tools, what’s not to love? We’re big fans of blinken-pumpkins.

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