Hello Sean, thank you very much for these answers. For once the sea is flat this morning and I just recalibrated...
Accelerometer: I still have a "calibration distance too small" with one or two cyan dots per side and yellow and red dots on the current side. I stayed 1 minute per side... maybe it is still not enough?
To calibrate the compass, I make a complete turn and then another complete turn upside down (to untangle the electric wires...). At anchor, the compass works perfectly.
Locking: I noticed that the screwdriver used to immobilize the RPI is magnetic... so I lock the calibration when I use it.
Update :
I forgot: there was a sailboat on the visual, which has disappeared for a week or two.
We set sail for 2 or 3 days with our new calibration. To be continued.
Accelerometer: I still have a "calibration distance too small" with one or two cyan dots per side and yellow and red dots on the current side. I stayed 1 minute per side... maybe it is still not enough?
To calibrate the compass, I make a complete turn and then another complete turn upside down (to untangle the electric wires...). At anchor, the compass works perfectly.
Locking: I noticed that the screwdriver used to immobilize the RPI is magnetic... so I lock the calibration when I use it.
Update :
I forgot: there was a sailboat on the visual, which has disappeared for a week or two.
We set sail for 2 or 3 days with our new calibration. To be continued.