I'm confused as to what kind and how many control boards I need for this project. I have one OpenCockpits stepper motor controller that will control 3 stepper motors. I would like to use it if possible but what else do I need for the steppers and Hall Effect Sensors. For the switches I will be using the OpenCockpits Master Card. Most of my cockpit uses these cards. I also have OpenCockpits EFIS, MCP, COM. NAV, ADF, XPNDR p&p radios.