Subject:
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Re: Removing red led from light sensor..
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 10 Jun 1999 13:13:03 GMT
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Viewed:
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1042 times
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Patrick Lawrence <pat@hpnc.com> wrote in message
news:FD3pFv.DDF@lugnet.com...
> I think I read someplace that if you remove the red led from the light
> sensor it works much better.
> Has any one done this and if so how did it work?
Removing the LED makes it work over a wider range (0 to 100), but probably
at a slight loss of low light sensitivity. There is an analysis of the
subject in the LEGO Light sensor section on my web page:
http://www.plazaearth.com/usr/gasperi/lego.htm Digging into the sensor is
not easy or reversable. I would highly recomend you make a passive light
sensor using a CdS photocell you can get from RadioShack. Information for
this is in the Homebrew section.
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