Don’t know if I have read the instructions correctly or if I am trying to do something that is not possible, but
I have Arducopter loaded to my Pixhawk and use a 10 channel radio system connected via PPM.
I use channels upto 8 without issue but cannot get channels 9 & 10 to work, I am trying to get them to work the first 2 Aux pins sets for servo control but cannot get any response. I can map channels below 8 and they do work but everything I have tried for 9 & 10 has failed.
Starting to think I have just miss understood the instructions and that ardupilot does not support more than 8 channels.
Can anyone with more knowledge confirm that 8 channels is the limit or should I be able to use more if they are available.
If I should be able to get channels 9 & 10 to map to the Aux pins, how do I do it.
I don’t know about 33 and up as these most be new features in 3.4 dev. If you set it to 1 it will do RC Pass through so what every is coming in on channel 9 will be passed through to Aux1. RC10 = 1 it will control Aux2.
Don’t know if its of any help but peram file attached, perhaps it will be more obvious what I am doing wrong
BRD_PWM_COUNT set to 4 This is supposed to enable Aux 1 to 4 for servo use
RC9_FUNCTION set to 1 This is supposed to enable Aux 1 to Pass-through Mode
RC10FUNCTION set to 1 This is supposed to enable Aux 2 to Pass-through Mode
I just tried this with an Oscilloscope connect to the port so I could see what the PWM output looked like. RC9_FUNCTION does control AUX1. I set it to passthrou which is attached to a switch on my radio and I could see the PWM change on the scope. I did have to push the safety switch to enable it. This may not be necessary with 3.3 and I think this changed on 3.4 dev.
I originally had it set to control a gimbal witch is option 7 and had a pot connected to channel 6 and that also was working to control the PWM on AUX1.
Your param file looks right so it must be the radio or receiver not sending the signal.
I can confirme this issue.
No Aux_Out does work. Even with Pass_Thru nor designed as Gimbal Tilt in the Gimbal Configuration of MP.
I can read the inputs moving in MP -FlightData Windows “Tuning” but the ch9out to ch12out remains at Zero.
BRD_PWM_COUNT = 4, RX Taranis X8R via SBUS. I checked various Type of Gimbals in the menu.
Pixhawk V2 from 3DR
The connected gimbal does not work, but connected to a RX it works as it should.