David Patterson 2

Thanks Mike. That's really interesting. Not sure why I assumed the RX module was using PPM. I'm using a micro-controller as a USB interface to my DSM radio so I can control the radio from my laptop. The micro-controller is just as capable with regular serial comms so it should be pretty easy to update it to use this protocol. That should reduce latency too which is always good. This has all been prompted by the maaxx-europe.com UAV race that's running in March. I want to fly a racing quad, using the video feed for navigation. I've been able to fly the quad with an xbox remote and I can track the video feed with opencv to follow a line. Not sussed altitude hold yet but that's on the way. Latency is a huge factor in these things so swapping to a quick serial interface could be a big advantage. Cheers Dave P

Sorry to resurrect this thread again. I've got a related question. I've harvested a module from a DX5e. I'd like to drive it with a micro-controller that generates 22ms PPM. I've proved the concept by playing the PPM signal into the buddy port on a DX6i so I'm confident the PPM generator is sound. I'll like to use a dedicated radio module rather than sticking my buddy switch down with tape each time I want to use the PPM generator. My question is this: how do I put the module into bind mode? Is there a special PPM signal that will do it? Can I wire a circuit with a push button that will force bind mode? If so, could anyone suggest a circuit? Much obliged. Dave Patterson Portished Bristol