Hi Sean,
Thanks for the answer. I'm able to calibrate the IMU but the signal K value always drops to 0.9936...rad and I only see my calibration offset of the compass in OCPN. If I moove the PCB, it goes back to decent value (no way to compare to a real value) stay still for a while and the drops again. Heel and Pitch are very consistent. I've got an other BNO to swap with while waiting for the MPU9255 to arrive.
Thanks for the answer. I'm able to calibrate the IMU but the signal K value always drops to 0.9936...rad and I only see my calibration offset of the compass in OCPN. If I moove the PCB, it goes back to decent value (no way to compare to a real value) stay still for a while and the drops again. Heel and Pitch are very consistent. I've got an other BNO to swap with while waiting for the MPU9255 to arrive.