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- Newsgroups: sci.electronics
- Path: sparky!uunet!unislc!mgc
- From: mgc@unislc.uucp (Marc Christensen)
- Subject: Re: wired IR repeater?
- X-Newsreader: TIN [version 1.1 PL6]
- References: <Bz9n8u.Ir5@ssesco.com>
- Message-ID: <1992Dec14.220518.5461@unislc.uucp>
- Organization: Unisys Corporation SLC
- Distribution: na
- Date: Mon, 14 Dec 1992 22:05:18 GMT
- Lines: 21
-
- Chris Elmquist (elmquist@pez.ssesco.com) wrote:
- : This may have been discussed here recently... if so, perhaps someone
- : can point me to the archive.
- :
- : What's involved in building a wired IR repeater ? (to control equipment
- : inside a closed cabinet for example). Is there more to it than just
- : a receiver, amp, and transmitter LED ? I seem to remember some discussion
- : where a 555 timer was being used (to re-time perhaps ?)
- :
- : Does anyone have a circuit for such a beast ? I know where to buy them
- : (for $50+) but I'm interested in integrating a homebrew circuit...
- :
-
- Radio Shack has a Rcvr/Demodulator made by sharp that will pick up the
- remote signal that is pulses modulated at 40Khz and output an inverted
- ttl signal that you should be able to invert and send to a 555 timer to
- remodulate it at 40Khz and send it to an I/R LED inside the cabinet.
-
- The module costs about $3.50
-
- Marc Christensen
-