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[vdr] Re: Ready: IR Controller with remote power on



Hi,

On Thursday 08 August 2002 23:12, you wrote:
> Am 08.08.2002 22:17 schrieb Jens Groth:
> > As far as I understand the IR Controller from Thomas, there should be a
> > spare output for switching some kind of relais. Is this right?
>
> Just today I have added an RGB switch for selecting the DVB RGB outputs
> or the VGA RGB outputs. For testing, this is just made by using 4 reed
> relays (RGB plus sync), but I probably will setup something with a MAXIM
> RGB multiplexer chip.
I'm also thought about such an electronic multiplexer. Additionally it should 
have the ability to drive the video and audio signals over a CAT5 cable.
The 4 cable pairs  would allow to distribute SVHS-Signals together with the 
Audio-Signals over more than 100 m. Unfortunately RGB with audio wouldn't 
fit, so two CAT5 cable must be used.
Is there any interest in such a hardware project ? (Until now it has very low 
priority for me)

>
> Now I can toggle between the normal DVB output and a LINUX text console
> (timings of the VGA graphics adjusted with SVGAText) by just pressing a
> key on my remote.
>
> You can, of course, use this output for switching anything else. There
> are even 3 more i/o pins left (reserved for ICSP, but if they are
> isolated by a 10k resistor to a driver or whatever, this would be OK).
> The second (ICSP) 10pin-connector on the PCB carries all these i/o pins,
> so a flat ribbon cable can be used to connect the IR Controller with an
> extension board.
>
> Using 2 or 3 of the i/os, even 4 resp. 8 switches could be set up by a
> simple binary decoder. Or anything else by using a serial protocol ...
>
> The code changes for my DVB/VGA swich are very simple. I will upload
> this version tomorrow. In this simple version the key assignment must be
> hard coded before flashing the PIC.
>
> I use a special lircd.conf containing all possible RC5 codes, and with
> LIRC's irw you can find out the code (address and command) of the
> desired remote key.
>
> Thomas





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