Best PIXHAWK Flight Controller and GPS?

[Vabe]

I once had a similar problem. Please check if the compass readings in the status tab are working. If all three of them show zero, you might have my problem.

I solved it by resetting all parameters and then performing the setup once again. But I did the compass calibration in QGroundControl.

For more information, here is my original post

All magnetometers 0

I have an update (Sorry for possible double-post): I’ve stumbled across this post: https://diydrones.com/forum/topics/pixhawk-i2c-not-working I thought I’d give it a try and to my surprise ALL controllers are working! So the good news: I didn’t break anything. And the bad: Why does the compass stop working once I plug in the battery and how can I avoid that, so that I can fly… Secondly: What do I do with two spare Pixhawks? but I’m pretty sure I’ll find a solution to that problem