This animated LED pumpkin, built by my HacDC cohort David Kaufman, uses a PIC16F648 microcontroller to individually control 25 LEDs in a styrofoam pumpkin. A Windows app is also available to edit the animations (which are then rebuilt into a PIC app).

LED Pumpkin

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Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor for Boing Boing and WINK Books. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.