Re: Homebrew USB receiver in development...

[user.vdr <use...@gm...>]

On Tue, Jan 20, 2009 at 9:19 PM, Travis Tabbal <tr...@ta...> wrote:
> I've got the hardware working. It's based on a PIC18F2550 and I'm attempting
> to produce output like the UDP driver would expect. The hardware seems to be
> working fine. I can't quite get LIRC to talk to it though. I've hacked a
> little on a spinoff of the UDP driver with the network calls replaced by
> serial calls I pulled from another driver. It starts up, but irrecord never
> sees any data. If I "cat /dev/ttyACM0" I can see the data scroll by. I have
> a windows screenshot showing the device output in binary and the waveform
> captured with a logic analyzer as well as my attempt at a driver. If someone
> is willing to provide some guidance with integration to LIRC I would
> apreciate it. I plan to release the project as open source and possibly sell
> kits or complete hardware for those that don't like to solder. I also plan
> to add IR sending support, wake-on-USB, and character LCD control.
>
> The ZIP file is here: http://www.tabbal.net/lirc/sraw-0.01.zip
>
> One difference to note from the UDP driver. I am outputting a 0xFFFF at the
> end of each capture so I can see the seperate signals in the datastream. I
> can easily remove it if it makes integration easier.
>
> I haven't put together a schematic yet, it's all on a breadboard. But if
> someone wants to reproduce the hardware, let me know and I'll get something
> put together for you along with a source code archive and/or HEX file.

I'd be interested.  Do you have an estimate of how much this project would cost?