jvanryn

Thanks borg - I suspected as much.  I may still use the IMU as a back up and for calibration.

We want to fly a camera over a football pitch using the IMU to show camera orientation (pan, tilt and roll) and x/y/z position.  We will have as much time as needed to set up and the camera will be stationary for may seconds between 'shots'.  My question is can I trust the IMU positional data or should I stay with counting steps on the stepper motors to estimate the position. 

I am looking forward to using the IMU brick in a motion control application.  What is the positional accuracy using an IMU brick using Quaternion math?  I realize that the 32 bits of data is more than I need, but am more interested in the IMU's ability to find itself in 3D space from a set starting point.