Using Arduino with Air ManagerDrive an RPM gauge for Cessna 172 using a X27 stepper and Arduino UnoBelow you find a video of a X27 stepper motor that controls a RPM gauge.The stepper is connected directly to 4 digital ports on the arduino.Connection to the simulator is done via Lua script and AirManager, the script does not take more than a few lines.Need more info, feel free to ask