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Subject: Re: Remote control with display
From: ActiveSystems (activesystems_at_caverock.net.nz)
Date: 2002-10-03


Sounds fine. If you push a remote button then the Jukebox could immediately
update the display so the response would be crisp. Still have to have some
electrical protection in the event of a button press on the remote while the
Jukebox is sending data though. Resistor on the output pin on the remote
would be fine - guards against something shorting the remote ring on the
jack to ground as well.

h

----- Original Message -----
From: "Andreas Stemmer" <Andreas.Stemmer_at_web.de>
To: <rockbox_at_cool.haxx.se>
Sent: Friday, October 04, 2002 12:21 AM
Subject: RE: Remote control with display

> Great idea to use this pin in both ways. I'd love such a solution, but
> as many others I don't want to open my jukebox and solder it, at least
> until warranty runs out. But I don't have any problems to build my own
> remote with a -controller. There would be many great applications, a
> interface to a car stereo for example that displays song name etc. in
> the display...
> My suggestion for the communication is the following: leave the
> remote-pin of the archos as an input all the time, except the remote
> sends a special "give-me-data"-command. Only then the archos should
> change the port to output, send the requested data and change to input
> again. This way, you can use the standard remote as well and there won't
> be any situations where both units try to send data, which wouldn't be
> very nice (imagine one device trying to pull the line to "1", the other
> one trying to pull it to "0" at the same time!). The negative side is,
> that all data has to be polled frequently, but I think it is not too
> much work for the archos, handling this every 500ms or something like
> this...
> What do you think?
>
> Andreas Stemmer



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