I like the looks of this electronic compass sensor paired with an Arduino protoshield. It would be fun to drive a servomotor with this data, to create a digital/analog compass.
Electronic compass on an Arduino
John Edgar Park likes to make things and tell people about it. He builds project for Adafruit Industries, Boing Boing, and Make. He has ninja warrior goals. You can find him at jpixl.net and twitter @johnedgarpark
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