RE: LED Fun Challenge

["Paul Gordon" <paul_gordon@xxxxxxxxxxx>]

Or perhaps something along these lines....

http://www.phaedrusltd.co.uk/pages/html/som1.html

Paul G.



>From: "Alex Monaghan" <ha@xxxxxxx>
>Reply-To: ukha_d@xxxxxxx
>To: <ukha_d@xxxxxxx>
>Subject: RE: [ukha_d] LED Fun Challenge
>Date: Tue, 3 Aug 2004 20:33:30 +0100
>
>What about a PIC (or other microcontroller) ?
>
>Use 2 pins as inputs to be triggered by the PIR's and then simply
sequence
>up or down the remaining pins to turn on the LED's in the correct order
? I
>guess you'll want to use the other PIR input as a trigger to initiate
the
>timer. You could also do some clever stuff such as starting an
alternative
>sequence of lights in the event of a 2nd trigger being activated whilst
the
>lights are still on :-)
>
> > -----Original Message-----
> > From: Rob Mouser [mailto:groups@xxxxxxx]
> > Sent: Tuesday, August 03, 2004 6:34 PM
> > To: ukha_d@xxxxxxx
> > Subject: [ukha_d] LED Fun Challenge
> >
> > A friend of mine has just moved into a new (very posh) pad. He
has an
>oak
> > and steel spiral staircase and wants to add some discreet LED
lighting
>to
> > it. But of course just on/off wont do! He wants to have pir
activation
> > from
> > the top and the bottom AND when it is activated he wants the LED
lights
>to
> > come on in sequence one step at a time (Fairly fast.) and then
all
>remain
> > lit for a set period of minutes. But it doesn't stop there! He
wants the
> > sequence to start at the top if activating the upstairs pir and
start
>from
> > the bottom if activating from the bottom. Oh my life!
> >
> > I went kinda grey when he suggested all this but he is fairly
adamant he
> > wants to do it. I reckon c-bus might do it but that would
involve,
>pir's,
> > 2
> > x 12 ch relays (for each step.), transformers for each LED and a
great
> > deal
> > of thought. He doesn't have any c-bus at present (Standard
lighting.) so
> > that seems overkill. Color Kinetics with DMX control is also an
option,
> > again flippin expensive for a staircase.
> >
> > Surely a relay board can be made that is programmed to sequence
12v as
> > required? Perhaps with one single power input?
> >
> > As I said hes adamant that he wants this, can anyone come up with
an
>idea?
> > Commercial solution? Anyone want a one of job to build the
circuit?
> >
> > Personally I think he's barmy but hey each to their own!
> >
> >
> >
> > Rob
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>