> Oy, now you're talking about actually *controlling* with the computer? I > mean, that would be fun, and it's definitely possible, but that's some > wicked klunky. > > In that case, I think you'd want to start with a Palm and write a custom > app to talk to a custom-built Tx module with sticks for input. All > possible, interesting, difficult, and expensive.
i added a mixer to my hitec focus 4am transmitter. the mixer is an analog computer. when i built it i looked at the possibility to build a PIC based digital computer instead. the problem was a DA converter. AD converter for sampling the stick positions is very simple. microcontrollers with sufficient number of analog inputs are available and cheap. at that time i found only one microcontroller that had a built in DA converter. it's certainly possible to create small addon board for simple non-computer radios that would sample the stick positions, send the data to PDA using RS-232, receive the processed data and send it to transmitter circuit. imagine: you can record your manouvres to PDA and replay them later :) only one thing bothers me little bit: reliability of the software. some kind of emergency cutoff switch for fully manual control is probably required to save your plane when PDA crashes. arne RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
