I know from my experience with 3D accelerometers that there is a lot of drifting. We would also need a filter to take away vibrations. But I also know that some guys at my Uni. managed to keep a model helicopter at the same position in the air by only using input from the accelerometers and the result was amazing:) (I will try to figure out if the code is still available.) -- Please don't send me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html
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