Arming with one channel remote


I want to be able to arm PX4 with a one channel remote control like this one:

Is there a way to do it?
(didn’t see it in


Presumably, you could pair with this remote and then select configure the arming switch to be on the one channel that it outputs. However, there might be some checks in the firmware which ignore a receiver with less than 4 or 5 channels and thus it might not work out of the box.

If you’re comfortable changing these checks in code, I don’t see why it would not work, that’s assuming the receiver is outputting something like PPM or SBUS that PX4 already understands.