I whipped up a little interface yesterday, to connect an Arduino to a Radio Control Transmitter (a Multiplex Royal Evo 12, in my case). This can be used to send commands from the Arduino to the transmitter, which will mix them with the manual input and radio them to the radio-controlled model. Channels 1, 2, 4 and 5 are moving, sticks centered. The first application I want this for is to pan a vid