Using a set of real BMX handlebars as a wireless controller for a custom videogame using both opensource hardware and software including the Arduino and Blender3D. Read On.
I just got back from San Francisco. I did something I often do when I visi…

Here’s the module I used on the poor man’s GPS:

http://www.parallax.com/detail.asp?product_id=29123
At $30, it’s a bit more expensive, but the trade off is in having a serial interface, and ridiculously high precision.

The downside is that you need an arctangent-like function to make the serial data usable. It spits out two readings that need to be combined:: eg:
angle = x ATN -y ‘ Convert x and y to brads

angle = angle */ 360

For some micros, this is easy, others you can probably fake it out with a lookup table.

Hope this is somewhat useful,

Bill