PC -> USB -> Arduino -> PPM -> Futaba module -> receiver.
The TxDuino project aims to create a single device that allows a PC to control an RC vehicle. At the time of starting this project, the only option for doing this was a device from here that could be plugged into the trainer port of a transmitter. An arduino has been used to achieve this same setup as described here. Going through the handheld transmitter, however, is a huge hassle for a number of reasons so I set out to create a simple single device that could accomplish this. As it turns out, so did the guys at Tom’s RC, their solution being this guy here. Anyway, since the work is done, I’ll share the results.http://cheshirekow.com/blog/?p=236