Re: Fw: Stair LEDs

[ian.bird@xxxxxxxxxxxxxx]

So, something like:

Two inputs for triggers, beam breaks or something else? Probably normally
high and trigger when they go low.
Outputs for say 15 or 20 LED's. These would probably use say 100ma max each
(enough for at least 3 'normal' LED's at 12v)
Some interface for programming (buttons, serial or something?)
User definable delay between triggering and the first LED turning on
User definable delay between each LED turning on (same for all)
Delay to turn off LED's if no triggers to keep them on. Go off in reverse
sequence to the way they went on.
Totally autonomous in operation. Configure, turn on and forget.

Anything else?

Thanks

Ian








---------+---------------------------->
Gareth Cook
<g@xxxxxxx>
Sent by:
ukha_d@yahoogroup
s.com


16/03/2006 09:37
Please respond to
ukha_d

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>-----------------------------------------------------------------------------------------------------------------------------

To:       ukha_d@xxxxxxx
cc:       (bcc: Ian Bird/CV/Novartis)
Subject:  Fw: [ukha_d] Stair LEDs
>-----------------------------------------------------------------------------------------------------------------------------




Not sure what the current is for these LED's to be honest - nothing in the
docs that came with it. I know it's 12v ! As for computer control - not
for me - solid state only :-)

Be nice to trigger the thing and have the lights turn on in sequence, and
then when told to turn off, go off in sequence.

Even better if you could say ffrom which end the sequences start. So if
you go up the stairs, it start from the bottom, and vice versa from
upstairs.

G.





Hi Gareth

What would you see the specs as being?
i.e. number of outputs, current, configurability, connectivity (autonomous
or computer controlled dumb thing) etc.

Sounds like an interesting thing to play with when I am travelling for
work.

Ian