RE: Analogue Light Sensor (for Ken Watt)

[Mike Griffiths <mike@xxxxxxx>]

Paul
I've used the Texas TSL range
They work fine best to get one of each from RS and see which sensitivity
suits your application
As I have said before the hard part is working your schedule to understand
that they will react to both natural light and a Lamp being swithched on
When the sun is streaming through my windows the lights go off and come
back
on when it isn't

http://www.csi3.com/HOMEVIS/light_sensor.pdf
for a link


Mike
At Home


-----Original Message-----
From: psghome2002 [mailto:psghome@xxxxxxx]
Sent: 06 February 2002 20:12
To: ukha_d@xxxxxxx
Subject: [ukha_d] Analogue Light Sensor (for Ken Watt)

I've found the spec sheets on these TI sensors that just need a 5v
supply and give a variable voltage output. There were a few threads
on light sensors on the HomeVision list but I havn't found anyone
yet who's successfully calibrated the output to get sensible data to
use in a schedule. I guess a just few bands would be usefull, maybe
5-6 that might indicate dark, twilight, dusk, daylight, overcast,
etc.

http://www.taosinc.com/products.htm#tsl250r

Anyone using something similar? or have ideas for practical
application using X10 dimming for example?

Paul.



For more information: http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx
Subscribe:  ukha_d-subscribe@xxxxxxx
Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
List owner:  ukha_d-owner@xxxxxxx

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/