Subject:
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Re: Radio Shack CDS cells in parallel
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Wed, 9 Feb 2000 00:30:33 GMT
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Viewed:
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1679 times
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In lugnet.robotics.rcx, Ben Jackson writes:
> You could also just connect a suitable fixed resistor in parallel to adjust
> the resistance range down (or in series to adjust it up
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True, but the RS CDS cells are cheap and using them in parallel or series
also changes the response range, since all the resistances change with
light levels. This would be most dramatic in the series connected
case at the low resistance end and the parallel case at the higher
resistance end.
And as you point out, it does give a greater field of view for the sensor
and some control over which areas it surveys.
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Message is in Reply To:
 | | Re: Radio Shack CDS cells in parallel
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| (...) I built a sensor out of one of those and it works fine, so yours is probably defective. I superglued mine to the top of a 2x2 brick with the studs removed. You can see my high tech design at (URL)I tried this idea and it worked. You can put (...) (25 years ago, 8-Feb-00, to lugnet.robotics.rcx)
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