"I live outside their country, and shipment to my place is unusually high.

I agree, having such option would be great.

Tried to calibrate OF, but it seems without lidar flowX/Y and bodyX/Y are poorly correlated, scaling will not make them match…"

"I'm also completely confused on whether I can use optical flow sensor without lidar or not.
Wiki says it does not use sonar readings anymore and I see flat line for EKF5.meaRng.

Lidar is additional $200..."

"OK, but MissionPlanner does not allow Yaw D be less than 0.01 (or 0.001, don't remember exactly). So I will set it to the possible minimum.
RATE_PITCH_I = RATE_PITCH_P x 0.1 as well as a start point?"

"Thanks a lot!

  I fought those funny oscillations and they don't happen only with very low D. Now thanks to you I suspect that this is just because bad mounted weight (gimbal simulation).

  My current settings are Pitch/Roll P 0.13, D 0.015,  Yaw…"

"Hi Leonard,

  Thank you.
  Here are three logs from my attempt to autotune:
https://www.dropbox.com/s/e78f4kdnwrp670e/73.BIN?dl=0 attempt to autotune all axes
https://www.dropbox.com/s/wxbuipf98at8ai1/74.BIN?dl=0 roll (or pitch?) only…"

"I'm flying F550-kit based hexa with gimbal, 2400g total with 4 Ah 4s battery.
Weitght center is pretty low, could this be a reason?"

"Hi,
  I tried to do autotune, but battery was not enough to complete even one axis (~11 minutes). Is there a way to continue autotune after battery change?

  Actually, I failed to do normal manual PID tuning procedure too, as even with P=0.22 on…"

"Hi, I failed with autotune (ran out of battery trying to tune one axis, 11 minutes). Then I decided to do it manually, but to my surprise i got no oscillations with p=0.35 and no oscillations with d=0.025.
Should I proceed with higher values for p…"

"Both are exactly the same, checked twice. And I pressed this buttion in Mission Planner "Enable OSD Telemetry". And Flight Mode does pass to both OSD and SPort. Is it different from other MavLInk messages?"

"Yes, I ordered both versions to play with and they both work (with 5v power provided). At least, they pass Flight mode to my Taranis. Today I'll try to flash latest Wolks' firmware (hope there's enough memory).

There is an issue with my Pixhawk…"