[MLB-WIRELESS] Electrical guinesses step forward !

Tony Langdon tlangdon at atctraining.com.au
Wed Jun 12 11:50:44 EST 2002


Sounds like a fun project to try. Might have to build one myself.

> -----Original Message-----
> From: David Ng [mailto:nudge at d2.net.au]
> Sent: Wednesday, 12 June 2002 11:24 AM
> To: melbwireless at wireless.org.au
> Subject: Re: [MLB-WIRELESS] Electrical guinesses step forward !
> 
> 
> Building a IR reciever for your computer isnt to hard to do.
> I've built one using parts sourced from a local Dick Smith.
> 
> Part listings and prices are below:
> R1090 Resistor 4k7 $0.04
> Z1955 Sensor IR buffered Rcvr w/ Lens $6.50
> Z6108 LM 78L05CZ +5V 100mA V/Reg $1.00
> Z3120 Diode 1N4148 Small Signal $0.06
> P2686 9-Pin Sub-D Plasitc Backshell $2.20
> P2685 9-Pin Sub-D Solder Tail Socket $1.35
> R4295 Cap Electro RB 1.0 uF 50WV $0.20
> 
> Follow the schematic shown here:
> http://www.lirc.org/receivers.html
> http://www.lirc.org/images/schematics.gif
> 
> ...and the assembly instructions here (but by using the above 
> components and
> schematic):
> http://www.heatseekerz.net/index.php?page=articles&articleid=4
> &page_number=1
> 
> And you should be right!
> Its handy because the entire IR reciever fits snugly into a 
> 9-pin serial
> port connector!
> 
> For windows, you'll need the two following programs to drive 
> the IR reciever
> and to control windows:
> http://winlirc.sourceforge.net/ (WinLIRC)
> http://www.girder.nl/ (Girder)
> 
> For linux, you can just use:
> http://www.lirc.org/ (LIRC)
> 
> 
> I should also mention that I have heard that it is possible 
> to build an IR
> reciever by using the Line-In input on your soundcard.
> Instructions are here:
> http://forums.overclockers.com.au/showthread.php?s=&threadid=60426
> I havent tried it myself, but looks rather simple!
> 
> 
> Hope this helps,
> nudge.
> 
> ----- Original Message -----
> From: "Tony Langdon" <tlangdon at atctraining.com.au>
> To: "'Brian Slater'" <b_slater at hotmail.com>; 
> <melbwireless at wireless.org.au>
> Sent: Wednesday, June 12, 2002 10:36 AM
> Subject: RE: [MLB-WIRELESS] Electrical guinesses step forward !
> 
> 
> > > > To make a power switch controlled by a PC, and to then make
> > > an Infrared
> > > > input for the switch. - so i can use a remote to turn on
> > > and off, say ...
> > > > the kettle (cant think of much better things, than watchin
> > > TV and starting
> > > > the kettle with out getting up ;)
> >
> > Shouldn't be too hard...  The Coffee HowTo has some sketchy 
> ideas.  For on
> > off applications, one can use one bit the printer port to 
> drive an opto
> > isolator/triac or relay combination (don't forget the 
> isolation!!!!!!).
> If
> > you want non simultaneous control of up to 256 devices, you 
> could decode
> the
> > 8 pins of the printer port.  An alternative approach is a serial
> controlled
> > PIC based system, which could operate completely standalone 
> if you wanted
> > to.  As an aside, I could do such control over a wider 
> range with the IRLP
> > box...  "Press hash to boil the kettle..." :-)
> >
> > > >
> > > > If it could also repeat the Infrared signal as well ? (eg.
> > > sender) it
> > > could
> > > > turn on the Stereo in another room ;-)
> >
> > This one is better handled outside the PC.  There have been kits for
> "infra
> > red repeaters" over the years.
> >
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