Hello,
I'm curious if anyone else would be interested in this project. I'm trying to figure out if I can use an diecimila as a RC encoder and interface with the eflite LP5dsm 2.4ghz module, this module accepts TTL serial and the protocol has been established by a few other projects(link below). That would be the first goal, the second will be to output PPM data for compatibility with 72mhz tx modules. The final goal (which I'm not sure is possible) would be for this sketch to also receive PPM data and turn it into serial data the lp5dsm module can deal with? I know of a Rcgroups user doing this with a atiny2313 but he did not release the code.
I'm thinking this would serve as a great starting spot for building your own RC transmitter thats spektrum 2.4ghz and 72mhz ppm compatible, personally I want to take apart an old computer joystick and turn it into a transmitter. I don't need any sort of LCD or GUI for onsite mixing etc although if the arduino can handle all the other stuff and do this I would certainly try it but I'd be happy with just getting the above stuff working with the least hardware possible (eflite lp5dsm or RTF transmitter) and a diecimila would be simple and easy for folks flying rc to get in hand.
I know there are DIY RC encoder boards out there already but I doubt any of them are as accessible as the arduino, not to mention I don't think any of them will be supporting the TTL serial connection of my RF module.
So anything think its possible? I'm still in the research stage and the things I need to understand (programming wise) to make this happen are becoming difficult so I thought I'd ask here before I dive any further.
Thanks
Charlie
Projects I'v read about while researching:
1: RC Groups - View Single Post - Build your own DSM2 transmitter module (its working!) Build your own DSM2 transmitter module (its working!)
atiny2313 used to decode ppm stream and turn it into the serial commands the spektrum lp5dsm module can understand unfortunately did not release the source...
2: HowTo: Set Up CopterControl
Sends the serial commands directly from a java application using a USB to TTL serial adapter, he is using a wiimote for input in one of these demos!
3:http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1193927390/0 ban-sidhe.com - This website is for sale! - ban sidhe Resources and Information.
This post details sending PPM frames from the arduino.
Eflite uses this module in the transmitter that comes with the Blade CX2/3 helicopter and in the transmitter that comes with the Vapor/MiniBCX/Ember and lots of other ready to fly models..