On realtime control of gimbal from companion computer

Hey @Jaeyoung-Lim ,

I am trying to control a servo motor that is connected to AUX1 in offboard mode. The servo is powered through a BEC and the signal cable is connected to AUX1. I have tried different mavros messages but didnt get it working. However, when I passthrough channel 5 of my RC to AUX1 it works.

Do you know how I can control PWM of AUX1 in offboard mode? Is it possible? Do I have to set any parameters to activate this feature?