Compass not calibrated EVERY BOOT!

Cube Autopilot
1

I have a drone which flys well, in loiter, stab and auto. PID are perfect, very stable. But, almost every boot my I get compass not calibrated, so I have to move the drone a little and reboot, sometimes I have to do this 5 times in a row to finally be able to arm and fly.

I’m using dual Here2 as compasses (can mode), I’ve disabled internal compass by using a bitmask, so I only have both external as reconized compass, I have 2 more drones with the exactly same config and hardware and they dont have this issue.

I tried to recalibrate my compass a lot of times, but, even with compass calibrated when I reboot, I have a prearm: compass not calibrated, so I move the drone a little and reboot until the error gone.

Really appreciate a help here.

2

Maybe you can try these suggestions?

As you mentioned you have multiple copters with same setup, did you load the parameters or setting them on different copters one-by-one?

3

Sure, I’ll take a look at those suggestions, thanks.

I didnt load the params and settings, I’ve manually changed the params one by one in each copter.

4

Have you got the boot delay set to 5000?

BRD_BOOT_DELAY,5000

5

Yes, i’m using delay, 6000ms.