I just received my Pix Mini Kit and I’m not getting an PWM on the the AUX pins. I’m powering my servo w/5V from a bench power supply and connected the servo to the Pix Mini’s A3 pin (=AUX3 on a regular Pixhawk). When I toggle Servo 11 in Mission Planner ( which corresponds to pin A3) , I get no changes on the A3 pin. I’ve armed the Pix Mini via the “Arm” button in Mission Planner and actuated the Safety switch. Any idea what I’m doing wrong?