How To: Use an Arduino to make a proximity-sensing Jack-o'-Lantern with LED lights

The Arduino Ethernet Shield is a wonderful device for DIY electronics projects, and this project is really creative and awesome. In this video you will learn how to use an Arduino, a promixity sensor, and some LED lights to make a proximity-sensing, LED-lit, evil Jack-o'-Lantern that will terrorize your neighborhood and probably get stolen if you don't watch it like a hawk.

Get the source code and other written info here.