Hi,
Thanks for your inquiry. BNO055 is very stable to output NDOF sensor fusion results such as quaternions, Euler angles (pitch/roll/heading), gravity vector and linear acceleration. It is not suitable for positioning by double integrating the linear acceleration output, because with any tiny noise of linear accelration data the position results will quickly accumulate to large errors even when BNO055 is not moving. You should think about other ways for positioning, for example RF beacons, ultrasonic, etc.
Thanks.
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