Hi,
I have a RC transmitter with 10 channels. But when I connect my autopilot with USB to my computer it shows only 8 channels activated (I can see the green bar for 8 channels) in Mission planner. For channel 9 to 16 the value shows 0 and there are no green bars on those channels.
Can anyone help in fixing this?
Thanks,
Sayan
Many unknown information
Hi Juergen,
The information is given below:
This is only a 6 channel Transmitter with original firmware
This is only a 6 channel receiver if ppm is used
Arducopter is not a flight controller (FC) but an overall controll system.
Also the default PARAMS can diver regarding to used HW (Hardware Flight Controller) SW (Flight controller firmware, version)
Thanks Juergen!
With transmitter and receiver I can read 8 channels and my transmitter is of 10 channels. I had a doubt if it is due to the receiver then it should have shown 6 activated channels but it shows 8 in mission planner. I am not sure of the reason. My doubt is if there is any parameter or any other settings in Ardupilot that is activating 8 RC channels in mission planner by default.
I think that receiver only outputs 8 channels in PPM mode. you will need to change it to IBUS to get 10 channels.
Thanks I will try! But in transmitter it is already selected as i-bus as serial protocol.
Can you guys see more than 8 activated channels in mission planner radio calibration pane?
How you know this, did you changed the firmware of your transmitter?
How you connected the receiver to the FC, which port on the receiver are you using?
Which RC Protocol detects the FC itself?
I can see up to 16, but that’s because I have a 16 channel transmitter and receiver. Yours is only sending 8 channels no matter your insistence to the contrary.
I found that I can configure 10 Aux channels in transmitter. For the rest I will check.
Thanks for the confirmation. I will check again.
Hi Yuri_Rage and Juergen,
Sorry for not being clear previously. I am using Pixhawk 6x as the FC. I have connected the RC IN channel in the FC with the PPM/CH1 channel of the FS-iA6B receiver. In the transmitter the serial communication is set to i-bus. I understand that the receiver is send data for 8 channels even if it is of 6 channels. But I found another thing that even I turn off the transmitter or disconnect the receiver from FC, I still can see the green bars for each of the 8 channels in the Radio calibration pane. The channels should have been greyed out right for either of the above cases.
Can you help me understand this?
you have connected it to 8 channel ppm on pin 1, so you are using ppm… if you want to use Ibus then connect it to the Ibus servo port.
you still havent mentioned what flight controller you are trying to connect to it, arducopter isnt a flight controller.
If I had a $1 for every post about these Flysky Rx’s and their outputs…
Hi geofrancis,
Thanks for your answer! I am using the pixhawk 6x hardware board as the flight controller(I recently came to know. Please let me know if I am wrong.). I tried connecting to the servo port of i-bus as shown in the image you shared. But after connecting in the servo port even if I move the transmitter sticks I do not see any data coming to the mission planner green rc channels. They remain intact to the neutral position. Surprisingly, if I disconnect the receiver from pixhawk 6x the channels remain active in mission planner instead of being deactivated(greyed out).
Is the Output Mode on the Transmitter set to iBus? Is there an Sbus setting showing on that screen also? Like this?
Hi Dave,
Yes the output mode in the transmitter shows i-bus as selected and yes there is an s-bus option also there but i-bus is selected.
Either should work connected as shown.
Does the receiver output PWM and IBUS both always simultanously or is it necessary to select either [PPM/PWM] output or [IBUS/SBUS] serial?
Just no clear to me as I don’t have such RC-system.
