I've got a couple of projects at the moment that are using accelerometers and I have them reading in degrees perfectly well in a half sphere but I would like it if I could get the full 360 degrees on both axis to get data on a full sphere of rotation; I've been told that rotation matrices and the direction cosine matrix are ways to do this but I haven't found anything that explains how to do this particularly well.
If any of you know of a good guide for how to do this or another route for getting the full range of data for an accelerometer I would appreciate any advice that can be given.
Thanks in advance and all the best