The problem is the same as with linear acceleration: You get an

increasing deviation over time.
Ortwin
On 5/18/08, recursv@gmail.com  wrote:

quoted text
> Instead of adding a compass to the device to be able to read spin about the

> gravitational axis, would it not be easier to offset one of the

> accellerometers from the centre of the device?

>

> That way, the roll is uneffected and the yaw and pitch can be calculated by

> accounting for the known offset in the equ.

>

> Just a thought

> Sent from my BlackBerry(R) wireless handheld

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