Where can I get a digital compass sensor?

[EHaskins]

Originally Posted by Francis-134

I think our team used this compass for some testing. Coincidentally, this compass is ready to use with the WPILib and easyC (gotta use the usercode block though). It will give you values between 0-360 degrees, in correlation to magnetic north. The documentation for WPILib says that its very important to watch out for the robot's motors, as they will of course create a magnetic field larger than the earth's field.

That one looks ok.

[Josh Siegel]

Try the Parallax Hitachi HM55B module. It's a bit of a pain to interface, but the results are decent and the price is fair.

http://www.parallax.com/detail.asp?product_id=29123