🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.electronics
Article #7110

Re: Need encoding scheme for TV remote infrared controller

#7110
From: Wayne
Date: Thu, 03 Sep 1992 17:12
23 lines
1567 bytes
In article <1992Sep2.181547.28000@aio.jsc.nasa.gov> mancus@zaphod.jsc.nasa.gov (Keith Mancus) writes:
>  Odd.  I've seen "generic" controllers that can be programmed to
>drive a wide variety of remote-controlled devices.  It seems pretty
>difficult to do this w/out any standards!
>
>> Borrow/obtain an oscilloscope....after playing around a bit,
>>you should be able to determine the encoding scheme used, or at the very
>>least which patterns go with which....
> 
>  <groan>  That's just what I was hoping to avoid.  Sigh.
>

It can be done without an oscilloscope, if you have a microprocessor with
a timer handy you can program it to time the high and low periods. I have
done this successfully with a few different controllers. From this 
information you should be able to differentiate between button presses.
This technique may not be effective if you want to emulate the
transmitter because of time delays produced by the reciever but is fine
if you want to build something that operates off of a already available
transmitter like you do.
-- 
Wayne Dawe
wayne@r-node.UUCP
Technical Details
Message-ID: <1992Sep03.171239.21834@r-node.gts.org>
Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!geac!r-node!wayne
References: <1992Sep2.003540.24065@aio.jsc.nasa.gov> <BtyE2K.3ts@news.cso.uiuc.edu> <1992Sep2.181547.28000@aio.jsc.nasa.gov>

Show Full Headers
Complete Article Headers
Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!geac!r-node!wayne
From: wayne@r-node.gts.org (Wayne)
Subject: Re: Need encoding scheme for TV remote infrared controller
Message-ID: <1992Sep03.171239.21834@r-node.gts.org>
Organization: Public Access UNIX Information System
References: <1992Sep2.003540.24065@aio.jsc.nasa.gov> <BtyE2K.3ts@news.cso.uiuc.edu> <1992Sep2.181547.28000@aio.jsc.nasa.gov>
Date: Thu, 03 Sep 1992 17:12:39 GMT
Lines: 23