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

[Rene Bartsch <vdr@bartschnet.de>]

Am Don, 2002-08-08 um 21.14 schrieb Stefan Schluenss:
> 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.

Are you sure this works? I used a free 8-wire Cat5-line in our network
(about 15 meter) for SVHS, SPDIF and IR on Jumper2 of the DVB-S Rev.
1.3, but the signal was so weak I only got a distorted black&white
picture but no SPDIF or LIRC.

Maybe I did something wrong with the cabling, but did you test such a
setup?

Rene

> 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
> 
>