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Article #14501

Re: Infrared remote controls

#14501
From: KEN E WILLMOTT
Date: Sat, 12 Dec 1992 18:33
19 lines
1508 bytes
>>    I am trying to find information on how infrared tv remote controls
>>send signals.  I have one of those infrared receivers from Radio Shack
>>hooked up to my 68HC11EVBU board, and have been experimenting with
>>trying to program it to read the buttons off a remote control for a Sony
>>Trinitron tv.

>However the absolutely best advice I can give you is to stop trying
>to figure out the Sony remote. Instead, wire up an infrared diode
>and a uart and that you can use to "train" one of these programmabe
>remotes (I got one from Radio Shack for $30 on sale once). Then you
>can design your own protocol pretty much and you always know what the
>transmitter will send when you hit the "1" key. :-)
>--Chuck McManis					    Sun Microsystems

If you do this, remember that a transmit packet from a normal
handheld transmitter is preceded by a whopping long "on" pulse,
to allow the receiver's AGC circuit to stabilize.

	-Ken
Technical Details
Message-ID: <1992Dec12.183328.3632@newshub.ariel.yorku.ca>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!cs.utexas.edu!torn!newshub.ccs.yorku.ca!newshub.ariel.yorku.ca!cs911225
References: <of90_cC00UhB465rsp@andrew.cmu.edu> <lij603INN3p6@exodus.Eng.Sun.COM>

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Newsgroups: sci.electronics,comp.robotics
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!cs.utexas.edu!torn!newshub.ccs.yorku.ca!newshub.ariel.yorku.ca!cs911225
From: cs911225@ariel.yorku.ca (KEN E WILLMOTT)
Subject: Re: Infrared remote controls
Message-ID: <1992Dec12.183328.3632@newshub.ariel.yorku.ca>
Sender: news@newshub.ariel.yorku.ca (USENET News System)
Organization: York University, Toronto, Canada
References: <of90_cC00UhB465rsp@andrew.cmu.edu> <lij603INN3p6@exodus.Eng.Sun.COM>
Date: Sat, 12 Dec 1992 18:33:28 GMT
Lines: 19