Gyro Troubles

[SteveO]

I apologize in advance if this problem is hidden elsewhere in another thread; I couldn't find anything similar.

We have received our analog devices ADXRS150 gyro and wired up the pins real nice to a PWM cable. We made sure with a multimeter that our connections were good and there was no cross talk etc. We housed the wired gyro board in a small enclosure similar to the one used for the camera from Radio Shack, filled with foam (perhaps the problem is here?). Using the gyro code provided by Kevin Watson we were able to get some output from our gyro.

Letting the program calculate the gyro bias gave us a little bit of drift even clamped securely with a rubber clamp to a table. We used the averaging function to get our gyro bias (a value of around 6537 I believe it was) and with that we still get a little drift but it is certainly acceptable.

My problem is, that when we turn the gyro 180 degrees (or any angle for that matter) we do not see any change in the output that would indicate we have done so. Does anyone else have this problem or know what I am doing wrong?