I posted an issue with Pixracer and power module when I tried the PX4 stack on it and there was a fix put in place in the PX4 stack (I think, please correct me if I’m wrong) and QGroundControl which worked perfectly.
Not sure about ardupilot on the PixRacer yet, but it would explain why QGroundControl is operating correctly.
I do not have a genuine Pixracer but a Banggood clone, and yes I mean 3.4-rc1. I won’t make any excuses for buying a clone as in the past I have a mixture of genuine APM/3DR products and one clone Pixhawk.
Well Pixracer clones are known for not working well (HobbyKing even removed them from their site and e-mailed buyers saying they would send a replacement when they had fixed boards). So, personally, I’m not pursuing something that is probably the boards’ fault.
I think I may have a duff Pixracer as the third compass is not recognised. Having looked inside the Pixracer I am not impressed with the quality of soldering, some areas look as if they should be reflowed again, including around the 5983 compass, and there is evidence of some hand reworking.