Optical flow not work

bassam · September 23, 2019, 4:27am

hi please need a help, opical flow not work PX4FLOW V1.3.1.
my copter f450, pixhawk 1 radiolonk, firmework 3.6.10
with gps work well, i want use optical flow for inside.
after configuration the optical flow and test i can’t fly loiter mode or position hold (disable to switch), althold can’t increse the throttle. stabelize no problem.
https://drive.google.com/open?id=1BOgeDhqxo-nbLObiW9tsoZp7KiewgClQ

bassam · September 23, 2019, 5:20am

test roll and pitch
https://drive.google.com/open?id=1Dq4nYeScnRUC3SOTu5kkhLM_G8rWeYTJ
picture of OF

Vabe · September 23, 2019, 5:21am

Do you have a rangefinder? That is required for some modes…

bassam · September 23, 2019, 5:53am

no range finder, no ultrasonic

Vabe · September 23, 2019, 6:02am

From the docs:

As with the PX4Flow sensor a range finder is required to use the sensor for autonomous modes including Loiter and RTL
FlowHold does not require the use of a rangefinder

http://ardupilot.org/copter/docs/common-cheerson-cxof.html

bassam · September 23, 2019, 6:55am

i can’t use OF without rangefinder?
can a use baro or flow hold?

Vabe · September 23, 2019, 8:05am

You should be able to use FlowHold, I don’t know about the others…