How you are controlling your throttle? RCIN3 shows allways MIN
In this particular test I wasn’t pushing throttle up. All I tried was to arm the motors so that the controller output for these would be Q_M_SPIN_ARM so 1100 PWM, so throttle was always on 0%. But yes, I control throttle with RCIN3
I am no expert but if you are in a pure plane mode why should be Q_M_SPIN_ARM used?
Sorry, you are right. I made an assumption. I did the same test with throttle, outcome is the same.
Again your arming checks are disabled
Now all should be fine:
My bad, got confused by the TAILSITTER comment in the messages.
Try setting SERVO7 and SERVO8 functions to motor 1 (33) and motor 2 (34)
It is possible that it is just broken, this is a quite uncommon config. You could give it a try on 4.8.dev and 4.6. Your config seems sensible, the only thing I see is Q_TILT_MASK should be zero. This is because the bicopter frame type uses the throttle left and throttle right outputs, not the motor outputs. It is the only frame type that does. Having said that I don’t think I would expect it to make any difference.
I tried on both 4.8dev and 4.6, but the issue is the same. I’ll try with older versions. I know that it used to work before, there were people trying to make very same type of UAV and succeed I think.
About Q_TILT_MASK, when I change it to 0, motors simply won’t tilt. With value 3 tilt works just fine.
Thanks for the tips. Maybe I should look into the code and try to fix it if I can.
EDIT 1:
It seems to work on version Plane-4.5. Here is a flight log, unfortunately I have to fix lift on wings, but the motors (servo 7 and 8) works in FBWA. Thanks for the tip @iampete !