BPee
lvl.1
Flight distance : 107218 ft
Finland
Offline
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I started having this issue when I started to use iPad with Mavic Air. First I thought it gotta be something iPad related.
Did everything stated here, and anywhere. No matter what I did, every time I turned Air on, it needed compass calibration. And most of the time it failed. Maybe 1/10 times it worked, but as soon as I landed - again...
Read about this CFixer and magnetized things. Makes sense, I thought. I kept my iPad in same case with my drone, just above it. iPad has magnets for those Apple covers. So, I thought, why not - it could be the case.
77USD feels like a lot (CFixer), so I googled how to magnetize and demagnetize things.
You can demagnetize with just normal magnet. Just spin it fast enough so the poles of the magnet change rapidly!
Old toy car - (electric motor with wires), 9v battery, hot clue, round magnet. (I had a small round one from RC car speed sensor)
Clued the magnet to the tip of the motor axle. And testing....
I magnetized paper clip, so it attached to a screwdriver when near.
So, let's see how Demagnetizer work!
Motor spinning, I kept the spinning hot clue thing (magnet) about 0.5cm away from the paper clip, about 5 seconds.
It wasn't anymore magnetized! Didn't stick to screwdriver at all!
Then I took my Air. Put that spinning magnet near the drone (0.5cm away), at the area where I suppose the compass is (back right corner, above grey plastic). Moved it a little, total time was under 10 seconds.
Then I turned Air on. Did IMU calibration (again...), went outside, did the compass calibration. And it haven't asked compass calibration never after that!
This one worked for me, so everyone should try this who suffers these kind of problems. Magnets DO mess something with Air, I believe.
To most of you this method is totally free, 'cause you can find those thing needed in your house!
Test it, and tell here if it worked for you? |
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