Back to the old thread.. I would be interested in a more precise description of that simple trick actually... or is there a paper or some reading ??? How do you calculate the exact x-y-z position from that ?? Thanks Luigi Am 17.04.2008 um 22:52 schrieb Inventor-66@comcast.net:
Normally one would use two 3-axis accelerometers and some signal processing to get a full 6-DOF (Degree Of Freedom) tracker, but there is a simple trick that uses only one. What you do is you obtain pitch, roll, and yaw from the gravity vector, or low-pass- filtered component, and the X, Y, and Z from the dynamic acceleration, or high-pass-filtered component. It isn't perfect but it does save you a sensor
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Luigi Rensinghoff luigi.rensinghoff@freenet.de skype:gigischinke ichat:gigicarlo