This is a port of Flytrons USB2PPM Project Compufly with enhancements  You can use multiple usb sources and map any axis and button to any channel of your choice.  You can also map multiple buttons to the same channel and adjust the ppm value to them for a 3 way switch with 3 buttons type set up Current feature list Servo/PPM output Ability to output no less then 10 ppm Channels Channels need t…