Re: Stair LEDs

["Frank Mc Alinden" <frankmc@xxxxxxxxxxxxxxxx>]

Hi Gareth

>I have yet to find a pre-made board that can 10 lights so you can turn
>then on in sequence rather than all on at once :-)

Fancy a compromise ...???  Turn on the top and bottom led via comfort
/cbus.....

The other 8 leds can be sequenced  via one of my  8 in 8 out  pic
boards........
http://www.hobby.armaghelectrical.com.au/page8.html

The inputs of my 8in 8 out could be used as follows.....

input 1.....Enable led sequencing (triggered by Comfort same output that
turns on top/bottom leds)

input 2....trigger seq up (beam break at bottom of stairs)

input 3....trigger seq down (beam break at top of stairs)

input 4....turn on all leds (emergency)

input 5

input 6

input 7......The combination of inputs 6,7+8 changes the sequencing timing
so you can have 8                         different  time selections
selected by connecting the inputs to +12v ..........
input 8


What do you think ....????

The output chip on the board is a uln2803 which can handle approx 500mA

Frank


----- Original Message -----
From: "Gareth Cook" <g@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Thursday, March 16, 2006 4:27 AM
Subject: Fw: [ukha_d] Stair LEDs


15mm ones from B&Q (- outdoor LED's so waterproof) - they do 30mm as
well
. £30 for the kit for 10 lights.

I have yet to find a pre-made board that can 10 lights so you can turn
then on in sequence rather than all on at once :-) Ignore the instructions
to use a 12mm hole - use an 11mm and the fit is much much better.

G.

Gareth Cook
Tools and Process Architect
IBM SWG Sales - Lotus Park, Staines, TW18 3AG
Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166
AIM Chat : TheBoyG - MSN Chat : chat@xxxxxxx
email: g@xxxxxxx


----- Forwarded by Gareth Cook/UK/IBM on 15/03/2006 17:19 -----

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Hi Gareth,

looking through your site... just thought I'd say, like the stair LEDs...
I've been thinking about something similar myself....

nice...

Neil


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