Ok, so I've been working on a project randomly off and on for a bit now, and it's effectively trying to create a vr like system. Chip/arduino/screen attached to head, with input to the 3d world on current rotation, direction, etc. What I'm wanting to know mainly is I have the rotation for looking up and down, and the spinning the head clockwise/counter_clockwise from looking straight. Problem is, with just an accelerometer, you can't get a looking left or right. Is that what a gryo is for, or would I need something like a digital compass? It seems kind of stupid to pay $150 for a tilt compensated digital compass if I could simply put a gyro on it.
Would it work for what I'm wanting it to? Oh, and the part in question is this one: http://www.sparkfun.com/products/9165
The thing is, it'd be cool to make my own vr like game. I've been using Unity3d for a bit now, and can easily get serial signals from the arduino. I'd like to experiment a bit more and see how good I can get it to fail. If this is what I need, could I get a triple axis gryo and use that for moving the head forward and back and left and right, but not spinning, or are gyros only spinning?
@_@ I get so confused about things like this sometimes.