Rather than starting my new autopilot project by crashing a plane I decided I would rather start out by crashing an RC car. As I wait for my new Ardupilot to arrive in the mail I have a question about my configuration. My 2ch receiver has 3 "ports": Ch1 goes to the ESC, Ch2 goes to the steering servo and the 3rd slot is unused and is labled "Batt". I understand from the diagram in the assembly instructions
that I'll connect Ch1 to IN1 on ArduPilot and Ch2 to IN2. My question is what to do with the CTRL pin on ArduPilot? Would this connect to the battery slot on the RX or do I have the wrong RX to use ArduPilot? What would happen if I couldn't connect CTRL to anything and are there any workarounds?