"Hi Alejandro,
sorry for late reply but I have tried to repeat the steps you have tried in my environment.
I have managed to get the AUX 5 (pin 54) to toggle following the procedure in the link you mentioned.
First you have to make sure you have the…"

"Hi Eric,
the phrase Relay Switch is a little bit misleading as you cannot directly switch a relay with the pin but you need a transistor to get the necessary current for switching a relay.
The meaning is that you can program those pins as being…"

"Hi Leslie,
it depends what kind of receiver you are using? If it provides more than 8 channels in the PPM sum signal to the Pixhawk it should be possible to route them to the respective AUX outputs, see…"

"Thanks Michael for your answer!
My issue is that I need to use channel 7 and 8 of my RC for different functions so my intention was to switch the navigation lights via  MAVLINK from Mission Planner and currently I have no idea how to achieve this…"

"this sounds as if it would solve your Problem. The only thing you have to adapt is the  BRD_PWM_CNT=3 since you also want to use RC11.
Please report if you are successful.
Nevertheless I am still waiting to get some support on the original issue of…"

"the RC_Out 1..14 corresponds to the Output Pins of the Pixhawk; for the Outputs 1..4 the function is predefined, see
http://copter.ardupilot.com/wiki/common-pixhawk-wiring-and-quick-st...
under connecting motors

for the other Outputs starting from…"

"Hi Jamie,
I think you still misunderstand the difference between the usage of those 6 AUX Pins on Pixhawk:
By default AUX 1-4 (Pins 50 to53) are configured as normal PWM Output, i.e. you can control servos with those pins.  The other 2 (AUX 5-6,…"

"Hi Jamie,
with respect to the logic, I use to control the leds, see attached schematic; I have installed a separate DCDC converter supplied by the 3S LiPo to have a 5V supply for the PWM outputs of Pixhawk, which also supplies my leds.
My current…"

"Hi all.
really nobody who had a similar issue with latest version of MP?
 
Thanks in advance
 
Harry"