"Gary Schafer" wrote
|For the pitch and roll, I don't think an accelerometer is not going to
| do it. It will give you rate of change. You could do some math and get
| degrees but it would not be accurate if the rate was different the
| next time you had a pitch or roll.
|

This is NOT correct. The ADXL is NOT measuring rate of change. It's output
measures the gravitational acceleration directly. I suggest that you read
AMD's data sheet on this product to understand how it works. I have used the
ADXL to measure the inclination of a telescope tube with some success.

Regards,

Vic
--
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Victor Fraenckel - The Windman
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