I use the latest 3.6 ChibiOS with v2.3 PX4Flow from banggood (no sonar).
I followed the PX4Flow guide and use the px4flow-klt-06dec2014.px4 firmware.
I also have a working tfmini range finder for althold.
I can’t get OF position hold working indoors.
I have it working no problems outside, on every surface i’ve tried (No GPS on quad).
In the office with very bright led/florescent white light I can’t make it work.
I tried many patterns, carpet, patterned bright deck, putting patterns on the floor and all doesn’t work.
Finally I found a windowed office and narrowed the issue down to lighting,
that office has wall to wall carpeting and a window,
With the window open i have poshold with OF working great
When the window is closed with office bright light the OF fail to hold position.
I’m attaching pictures from the OF with the windows open and closed.
Is there a difference in PX4Flow quality/versions from different vendors?
Is there a way to increase the brightness of the OF for it to work with office light? I see the picture flickers sometime to a brighter picture.