🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.electronics
Article #7067

Re: Need encoding scheme for TV remote infrared controller

#7067
From: Keith Mancus
Date: Wed, 02 Sep 1992 18:15
32 lines
1905 bytes
In article <BtyE2K.3ts@news.cso.uiuc.edu>, tmkk@uiuc.edu (Khan) writes:
> In article <1992Sep2.003540.24065@aio.jsc.nasa.gov> mancus@roger.jsc.nasa.gov (Keith Mancus) writes:
>>  (1) Is there a standard [IR ]carrier frequency [for TV remotes]?
> There isn't a standard ANYTHING. Many remotes operate on 40kHz IR carrier
> frequencies, but it's far from being a standard.
 
  Sigh.  That's what I was afraid of.

>>The IR sensor we're using detects 40 MHz.
> Unless that was a typo and you really meant 40kHz....
 
  Oops. :-)  The sensor I am using (sorry, I don't have the part # handy)
is supposed to be commonly used in remotes.

>>  (2) Is the encoding scheme standardized?
> Not by a long shot.
 
  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.

-- 
 Keith Mancus    <mancus@sweetpea.jsc.nasa.gov>                         |
                 N5WVR                                                  |
  "If I owned Texas and I owned Hell, I'd rent out Texas and live       |
  in Hell." -General Sheridan                                           |
Technical Details
Message-ID: <1992Sep2.181547.28000@aio.jsc.nasa.gov>
Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!bcm!aio!zaphod!mancus
References: <1992Sep2.003540.24065@aio.jsc.nasa.gov> <BtyE2K.3ts@news.cso.uiuc.edu>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!bcm!aio!zaphod!mancus
From: mancus@zaphod.jsc.nasa.gov (Keith Mancus)
Newsgroups: sci.electronics
Subject: Re: Need encoding scheme for TV remote infrared controller
Message-ID: <1992Sep2.181547.28000@aio.jsc.nasa.gov>
Date: 2 Sep 1992 18:15:47 GMT
References: <1992Sep2.003540.24065@aio.jsc.nasa.gov>  <BtyE2K.3ts@news.cso.uiuc.edu>
Sender: news@aio.jsc.nasa.gov (USENET News System)
Organization: nasa-jsc
Lines: 32