Speedybee f4 v3 - compass calibration issue

Hi, I’m in the middle of a new build with the speedybee f4 v3. I’ve tried several times to calibrate the compass (BN-880) and the green bar just keeps starting over with no completion. I’ve changed the fitness from default to relaxed but got the same thing. I updated to the latest version of the firmware and swapped out the BN-880 for the Matek M8Q-5883 and the same thing is happening. Some advice on what to try next would be appreciated.

Yeah, there is a thread on this. Basically I2C shares a DMA channel with dshot, so you are unlikely to be able to use both at the same time. I have a work in progress to produce a non-DMA version of I2C for this board - you are welcome to try it. It calibrates my compass ok but sometimes sees bad data on the baro, so I am not convinced its fully cooked yet.

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Thanks for the quick response. I’ll switch to a different ESC protocol and try again.

Why am I using the speedybee f4 v3? Why not?

Not ready for PrimeTime perhaps:
Speedybee F405 Start at the end.
And it’s an F4
If you said “because it’s cheap” That’s a good reason…

I changed the protocol to OneShot125. Same issue with default and relaxed fitness.

Yeah, I realized there were some issues after I purchased…and yes, the price was a major reason.

I get that. I have had my share of junk (IMO) cheap Omnibus boards. Today I wouldn’t buy anything less than a supported H7 board.