There's different ways to do this. The cheapest is to get a Wii mote and
use that. It cost around $20. I got one on ebay for $5. Wii mote
communicates via bluetooth. You can use an app called OSCulator (mac) to
get the numbers to use. You want 5 locations for your trigger,
forward, back, left, right and up plus on/off. You can either take the
Wiimote apart to fit it in your box or you can stationary mount the Wii
mote and put an infrared bulb in the box.
You can also just make an infra red box and use a cheap webcam to
read it. You take off the lens, remove the infrared filter and replace
it with a bit of black film to block out the light. Use openCV and maybe
Blobscanner. Or use TUIO as software. Or use Reactable Or make your
Ardunio's good, it has an accelerometer and a sound module if you want
to make a self-contained unit. Check out maker shed and search the web
So it depends on what the final product will be and how it interfaces
with the sound.
-- http://nujus.net/gh http://nujus.net/~nublog/ http://artistsmeeting.org