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- Path: 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
-
- 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 |
-