Px4Flow: Trouble getting any response over I2C

Hi Harry,

I’m flying 3.6 for about a month now (started with the master version before the beta was released) since I needed a compatible driver for the Teraranger Evo.
For my usage the version seems pretty stable for now.
I performed the auto-tune process for all the axes, changed a bit the values and my copter is quite stable.
As far as I understaned LOITER mode change dramatically in this version and also more controllers were added, I refer you to Leonard Hall lecture for more info: http://ardupilot.org/dev/docs/apmcopter-programming-attitude-control-2.html

Eventually i’m trying to fly my copter in an indoor enviroment with the px4flow and an external rangefinder.

It works great in a well textured terrain (outside) but in indoor narrow spaces I have difficulties:

  1. The px4flow is pretty poor in terms of FOV and resolution so you relly need a well textured terrain for it to not carried away ,my Mavic-air on the other hand stable like a rock where the px4flow can’t hold position in LOITER.
  2. I’m also having trouble to relay on the rangfinder as my main ekf alt source - I refer you to my openned isuue, maybe you will have some insights: Issues when EK2/EK3_ALT_SOURCE = 1

Cheers, Gal.