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From: scott@blueeyes.kines.uiuc.edu (scott)
Newsgroups: sci.electronics
Subject: Re: TV remote control codes
Message-ID: <1991Feb14.182440.6873@ux1.cso.uiuc.edu>
Date: 14 Feb 91 18:24:40 GMT
References: <2407.27B2CBE1@ofa123.fidonet.org> <43935@ut-emx.uucp>
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In article <43935@ut-emx.uucp> greg@ccwf.cc.utexas.edu (Greg Harp) writes:
>
>This looks like a good time to jump in with a question I thought of this 
>morning.  I came up with the (probably not very original) idea of "digitizing"
>remote control codes with my computer and playing it back via software 
>control.  Then not only could I add timing features to my audio/video 
>equipment, but I wouldn't have a pile of remotes to deal with.  (No, I don't
>like those universal remotes.)
>
>Now, I have a working knowledge of electronics, and I'd done quite a few 
>projects, but I know little about the codes used by remote controls.  (I knew
>that they tended to be 40kHz, but that's about it.)  Anyway, what is the 
>feasability of sampling these codes using basically a phototransistor 
>hooked to some input (say a digital joystick port or parallel port)?  


I humbly suggest that you ftp to mrcnext.cso.uiuc.edu and download zapper.*
from the /video directory. ZAPPER is an article which describes in detail
precisely the project you're talking about.

Have fun!

-- 
Scott Coleman                                                      tmkk@uiuc.edu

"Unisys has demonstrated the power of two. That's their stock price today."
       - Scott McNealy on the history of mergers in the computer industry.