Need to Control Extra Servo

Hi all,

I am currently working on a hexacopter that has a secondary servo that can be independently and manually controlled between two positions (for a simple airdrop mechanism). We are using a Pixhawk 2.4.8 and are using a PM07 power module to provide power to the six motors. I believe the issue is that the MAIN OUT Sbus rail is unpowered (hence the power module), but i don’t know how to power the servo without also providing power to the motors through the SBus, which i fear would overvolt the motors. Is there some way to remove and split the power wire of the servo and configure it on the PM07 power distribution board as if it were a motor? Or would it not hurt to power the MAIN OUT Sbus rail even though the connected motors are already receiving power from the PM07? Is there some other solution?

We have confirmed via mavlink that the transmitter is sending signals to the Pixhawk to move the servo appropriately, it seems like the only issue is powering the thing. Will take any fixes!