I've been tinkering with the MPU6050 for telescope attitude determination for a while now. However, I'm not really satisfied with the accuracy and especially consistency I was able to archieve - even though I could improve it programmatically.
I was wondering if the BNO055 could be more suitable for the task, since it is advertised as beeing able to output absolute orientation.
Of course, it's not really fair to compare a 6 DOF sensor with a 9 DOF sensor but I'm just looking for some reports from people that know / have used both sensors.
Please also note, that I'm really kind of tinkering / experimenting with this. This is not something I want to have completed in a day or two. I understand that I can always slap two rotary encoders with a geartrain onto the telescope mount and archieve sub-minute accuracy. I'm just fascinated by the possibility of putting a MEMS onto a telescope, without having to do much mechanical modifications.
PS: If anyone should be interested in the code: I've done everything except sensor readout with python, that is than interfaced to stellarium. Let me know if you want the code / some help with setting it up.
PPS: I'm aware of this paper, but it is a bit outdated: [1407.0035] Accurate Telescope Mount Positioning with MEMS Accelerometers