Hello all.
I uploaded the latest firmware and now the problem is solved.
I have connected the Futaba to the navigator autopilot. I also calibrated the radio via Qgroundcontrol.
Only now I run into the following problem:
I have zero throttle when the stick is full down, but I want zero throttle when the stick is in center.
When I now the stick in center, I have 50% throttle.
This is probably a parameter setting, but I cannot quickly find which parameter needs to be changed. Can someone help me with this?
Thanks!
Hi @Marcel1 -
When using a USB joystick, the problem you face is a simple check-box under Joystick advanced settings to correct. However, when using an RC transmitter, the problem is actually not corrected in. ArduRover, but with the RC transmitter itself!
Please review the manual for your specific RC transmitter and verify you’re outputting the desired 0 percent at center position by configuring it appropriately.
Hi @tony-white ,
Thank you for your response. I have an RC transmitter (Futaba T6K).
But I don’t understand it. I have the same RC transmitter on a pixhawk 6C with also Ardurover. And there it works fine (zero throttle when stick is in center)
I don’t understand why I don’t have to set a center position in the RC transmitter on a Pixhawk 6C with ardurover, but I do have to set a center position in the RC transmitter when i’m using Navigator autopilot (with also ardurover).
At 1500 pulse (stick in center) I need zero throttle. At 1900 pulse (stick full up) I need full throttle forward and at 1100 pulse I need full throttle reverse. I always thought it worked this way. But maybe im wrong.
In the manual for the Futaba T6K I find only something about center position for the model type ‘glider’. I don’t think I should program the RC transmitter for ‘gliders’.
All information and tips are welcome
Hi @Marcel1 -
I woul recommend verifying with an RC receiver and servo on the appropriate channel that you are truly sending the 1500 microsecond PWM with the stick at center throttle - your Pixhawk may be doing some other conversion?
Hi Tony,
Thanks for the tip. I tested it with a servo.
But there are weird stuff going on…
If I set SERVO01_FUNCTION to Throttle left, the servo will go to max (1100 or 1900pwm) only. If I set SERVO01_FUNCTION to RCpastthru, the servo works normally (1100 - 1500 - 1900PWM)
Also changing the channels of RCMAP_ROLL and RCMAP_YAW are not remembered in the parameters after a rest
Problem solved.
I have reset the RCMAP_xx parameters via MissionPlanner and recalibrated the RC radio also via MissionPlanner. And now it works properly.
Strange that this did not work via QGroundControl. Bug?