"Hi,
Pull request is now accessible here
Benoit"

"Hi,

@Andre : yes an internal pullup (or down) may have the same effect than connecting input to the ground, but i'm not px4io hardware specialist

@Ultrafuge : what do you mean by "MP act as if it would be on hold" ?
Yes at power up (with tx off)…"

"Yes, I was not clear and you are right :
- I had connected RCIN signal wire to RCIN GND and SBUS signal wire to SBUS GND to avoid spurious input on these signals.

I will propose these changes for the master but these files have been modified to…"

"And here are source filessumd-a-b-files.tar.gz"

"Hello,

modification have been tested in flight this afternoon without problem.
Here are the file modified on ArduPlane 3.7.1 and the result of the build.
My GR16 receiver was powered from the servo rail (servo 8 plug)  as I have some doubt with…"

"the two missing files
controls.cArduPlane-v2.px4"

"As promised you will find day files for sumd.h, sumd.c, controls.c, dsm.c with above modifications implemented. You can find too the Pixhawk v2 build taggued ArduPlane V3.7.1 DBG20161128
You need to shorten the ppm input to the ground. If you don't…"

"Hello,
when I wrote this message, I was a little too much optimistic. After first good results, I still had some random behaviours on RC input and was not satisfied. So I continue to work on the subject, found some other things, true or false…"

"Benoît said:
I'm back to continue.

As all GR XX (without L) receivers seems to have similar software, this issue exists probably too for GR 12, GR 24 and GR 32

With these information, I dig into the pixhawk code, and found the…"

"Hello,

I had some problem to have a GR16 working with Pixhawk and ArduPlane 3.7.1. It was OK with a GR12L, but not with a GR16.
I want to use a GR16, even more expensive, to be able to use this mavlink to hott converter
with all features.
For the…"