Newsgroups: comp.robotics
Path: brunix!sgiblab!swrinde!cs.utexas.edu!uunet!hobbes!earth.armory.com!rstevew
From: rstevew@armory.com (Richard Steven Walz)
Subject: Re: infrared remote protocol
Organization: The Armory
Date: Sat, 26 Mar 1994 09:18:05 GMT
Message-ID: <Cn9Lu7.A87@armory.com>
Keywords: infrared ir remote protocol
References: <Cn0vFB.Ir2@ariel.cs.yorku.ca>
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In article <Cn0vFB.Ir2@ariel.cs.yorku.ca>,
KEN E WILLMOTT <cs911225@ariel.cs.yorku.ca> wrote:
>Hi,
>
>I have occasionally seen discussions here about IR transmission,
>and I posted a long whine here a while back about how hard it is
>to obtain the protocols for IR remote control transmission.
>
>I decided that it was not really a robotics issue anymore, so I
>moved my posts to sci.electronics and rec.video. Still, I thought
>that some people here might be interested.
>
>I created a summary of known protocols, hoping (so far naively)
>that it would provoke anyone who has deciphered more protocols
>to add them to the list. This summary is probably going to end
>up at bode.ee.ualberta.ca, in pub/cookbook/optic.
>
>If you want it now, it's been posted in sci.electronics, under
>subject heading "infrared remote [...something or other...].
>Note, anyone who says it's been done before is bullshitting.
>Only the Sony protocol has been covered (on the net), at least
>as far as I know.
>
>This is my final plea... if you know the details of any
>signalling protocol used for remote IR transmission, that
>is not covered in the above mentioned document, please
>arrange to add your findings to it by emailing me soon.
>
>	-Ken Willmott
------------------------------------
I have a couple friends who have made computer controllers with IR
modulated at 40kHz from the standard hand controllers and their computer
input hooked to an infrared photodiode or transistor. It is easy to see the
codes, although they are complex. The best way is simply to sample them and
to then generate them out your computer port to an IR LED to control a
remote automaton via another simple computer decoder. It isn't a job for
beginners with modest tools, but all the parts are available from Radio
Shack! (one of the few things one can find all the parts to build there!)
Their IR 40kHz receiver module is dynamite! And the parts are cheap. I do
recommend sufficient expertise to troubleshoot as it needs tweaking and
then all of a sudden works just fine.
-Steve Walz   rstevew@armory.com

