@Marc_Dornan wrote:
I have asked this question before, and a lot of people still have different approaches, but I want to ask it again in light of this observation below. I generally do not do anything other than a one axis level calibration now as I am not flying acrobatic planes. @tridge has told me this is ok but does recommend a proper 3 axis calibration.
I have started using a nice $2 App that gives me pitch and roll readings. I place this on the level part of the fuselage like pictures. Since the Mini Talon likes flying with a 3 degree positive attitude I position as such and do a level calibration.
https://drive.google.com/file/d/18_7dWKa3gqDpJZWq4_7BwvCE825AQiJA/view?usp=drivesdk
I then decided to do bit more testing. My phone shows 5 degrees of roll while Mission Planner is showing 7-8 degrees so it is not very accurate. Also there is a lot more drift with the Matek 765 Wing accelerometers than my phone. Staying absolutely level I noted it went from 0.17 degrees of roll to 0.25 degrees. My phone seemed more stable although it is only displaying 1 decimal place.
Would a 3 axis calibration yield a more accurate pitch and roll angle reading? It is such a PITA trying to do one properly.
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