http://www.evilmadscientist.com/article.php/darkpumpkin
by joeyo
Wed Oct 8th, 2008 1:13pm
(from #bor)
[score: 593 | approval: 75%]
Here's an inexpensive electronic circuit that you can build to put in your Jack-o'lantern. It provides power to drive a few LEDs at night, and automatically turns them off during the daytime. It's a simple and automatic dark-detecting circuit that you can use to for your very own photosensitive pumpkin.
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