Button on auxiliary output

Hi!
Desired: install a button to start auto mission, and another to RTL on top of a rover.

At this moment we have tested:


(chosen arm/disarm function for last test)
The aux out used for testing is the aux out 1, in a pixhawk cube (black)
then, we tested shorting negative and Signal pins, but nothing happened.
image

Also tried configuring another signal output (main out 2) to provide a PWM value of 2000, and shorted it to the AUX 1 signal, setting the param BTN_options1 to 1 (PWM input), but also, didnt work.

Pretty sure i am doing smthing wrong, will be happy to admit my guilt!
20240528_Aion.param (16.0 KB)