Re: The need to individually switch 50 LED's

[<groups@xxxxxxxxxxxxxxxx>]

Cheers everyone for the responses - I was leaning towards the 1-wire
approach myself. especially as the DS2408 has eight outputs, and I use a
temp05 already for various things (temp and weather mainly)

Happy HA'ing

J
----- Original Message -----
From: "Jon Payne" <jgpayne@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Thursday, April 01, 2004 9:32 AM
Subject: Re: [ukha_d] The need to individually switch 50 LED's


> I guess cost is going to be a major deciding factor, so this may cost
too
> much.... I would suggest using Dallas Semiconductor's 1-wire bus with
a
> DS2406(or 2405) per LED, then you just string three wires to and from
each
> LED (serial). You could even wire the DS2406 and resistor directly to
the
> LED. You get a cheap serial interface for the 1-wire bus and then all
LEDs
> can be controlled individually from the PC (or a TINI if you want them
on
> the network). You should be able to get a few 'samples' to give you
the
> idea.
>
> Jon
> ----- Original Message -----
> From: <groups@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Wednesday, March 31, 2004 8:30 PM
> Subject: [ukha_d] The need to individually switch 50 LED's
>
>
> > Hi Group
> >
> > I have a need to individually switch 50 LED's from a PC - can
anyone
> > recommend anything and how to do it?
> >
> > I am ofay with soldering, writing code etc, can anyone recommend
an
> > interface method?
> >
> > For those of you who are just wondering why? I have a display
cabinet
with
> > 50 ornaments and want to individually light them on user
selection and
via
> a
> > script (sad huh?) Thus the wire has to be discreet as well as the
LED's
> > shining on each ornament.
> >
> > Cheers
> >
> > J
> >
> >
> >
> >
> > UK Home Automation Meet 2004 - BOOK NOW!
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> >
> >
> >
>
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>
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>
>



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