Eric Smith wrote:
> 
>
> I'm planning to use the PIC16F877 with a 4x20 character LCD (or possibly
> VFD) as the controller for each system.  For the car, I'm thinking about
> using a pair of RS-422 links, one in each direction, for communication
> between the remote control and the Linux box.
> 
> In fact, I might have a remote control for the remote control :-)  For the
> car I'll probably try to mount the display and such in a DIN-sized box in
> the dash, and use another PIC (probably a 16F84) to make an IR remote for
> that.

Most new car radio/tape systems are CD-shuttle ready. They have 
some sort of a bus system between the shuttle and the radio/tape 
to control the CD shuttle.

If your protocol can take advantage of this, you only need a LCD 
to display the ASCII data - the controls are already there.

Does anyone know where one can get the protocol specs for the 
different manufacturers? I've got a Grundig, and would like to 
avoid home-made looking boxes, so I'd be interested in the 
protocol myself.

-- 
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