Subject:
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Re: Serial Infrared Tower
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 14 Feb 2003 16:28:42 GMT
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Viewed:
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814 times
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Never though of using an 8 pin uC to do modulation, part is kind
of expensive though. There is a circuit floating around by John Barnes
that does it with a 555 timer, much cheaper. I have a modified version
that is compatible with uC output (i.e. before inversion) if anyone is
interested. It uses a few too many discrete parts as it stands but works
like a champ
-John G
Rob Limbaugh wrote:
> http://www.rentron.com/Files/TX-IR.pdf
>
> Substitute the TSOP-1140 for TSOP-1138. The Max232 chip can be obtained as a free sample from www.maxim-ic.com
>
> All the remaining parts are items that can be ordered right off Reynold's Electronics website (http://www.rentron.com)
>
> A better solution would be one where a daughterboard uses a couple I/O lines on the JCX and the carrier wave is generated on the fly. This would allow one to write programs for the JCX that could not only control an RCX, but also any consumer IR device. The phototrans could be used to record custom signals like a learning remote.
>
> > -----Original Message-----
> > From: Bruce Boyes [mailto:bboyes@systronix.com]
> > Sent: Thursday, February 13, 2003 2:29 PM
> > To: Steve Karg; lego-robotics@crynwr.com
> > Subject: Re: Serial Infrared Tower
> >
> >
> > At 05:33 PM 2/12/2003 -0500, Steve Karg wrote:
> > > Greetings!
> > >
> > > I have a USB infrared tower that came with the Mindstorm • kit, and recently
> > > got an older laptop without USB (for free). I haven't seen • the RS-232
> > > infrared towers for sale, and was wondering if anyone has • made a serial
> > > circuit that mimics the tower that I can make for use on the laptop?
> >
> > Rob Limbaugh was just communicating with me about that. It
> > should be pretty
> > easy, and I think some of the Lego references have schematics
> > or at least a
> > description. However I just looked and couldn't find them.
> >
> > We'd like to see such a circuit from JCX so that a JCX can
> > talk IR to the RCX.
> >
> > We will give a $100 gift certificate to someone who produces
> > a working design.
> >
> > Bruce
> >
> >
> > ------- WWW.SYSTRONIX.COM ----------
> > Real embedded Java and much more
> > High speed 8051 systems
> > +1-801-534-1017 Salt Lake City, USA
> >
> >
> >
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Message is in Reply To:
 | | RE: Serial Infrared Tower
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| (URL) the TSOP-1140 for TSOP-1138. The Max232 chip can be obtained as a free sample from www.maxim-ic.com All the remaining parts are items that can be ordered right off Reynold's Electronics website ((URL) better solution would be one where a (...) (21 years ago, 13-Feb-03, to lugnet.robotics)
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