2021-07-07, 02:26 PM
over the last 2 years of using OP I have ben trying to get the compass to work and have tried 3 different ones:
1. BerryIMU V2
2. HiLetgo MPU9250
3. Waveshare MPU9250 based
and cant seem to get the devices to actually perform properly during sailing. the BerryIMU I have used the most and find that, at my mooring it tracks the compass very well but as soon as I am sailing the variation from compass heading to GPS course/direction can be up to 90degrees. I picked up the Waveshare because somebody suggested it worked for them. I fitted this last weekend and have found that it was slow to keep up as I rotated on the mooring and once sailing I adjusted the direction based on GPS direction and then when I tacked, it was 90deg out.
I followed the calibration steps (https://openplotter.readthedocs.io/en/la...ation.html) and have moved it around a bit to get away from most power sources.
the sensor is currently mounted vertically against a bulkhead - is there any recommendation with regards to orientation? or position? - it is located about 6ft(2m) from the center line of the boat
Thanks for any help!
1. BerryIMU V2
2. HiLetgo MPU9250
3. Waveshare MPU9250 based
and cant seem to get the devices to actually perform properly during sailing. the BerryIMU I have used the most and find that, at my mooring it tracks the compass very well but as soon as I am sailing the variation from compass heading to GPS course/direction can be up to 90degrees. I picked up the Waveshare because somebody suggested it worked for them. I fitted this last weekend and have found that it was slow to keep up as I rotated on the mooring and once sailing I adjusted the direction based on GPS direction and then when I tacked, it was 90deg out.
I followed the calibration steps (https://openplotter.readthedocs.io/en/la...ation.html) and have moved it around a bit to get away from most power sources.
the sensor is currently mounted vertically against a bulkhead - is there any recommendation with regards to orientation? or position? - it is located about 6ft(2m) from the center line of the boat
Thanks for any help!