Olin Lathrop wrote:
>Photocells convert light to electrical energy, and don't operate on varying
>resistance.

I don't understand what you mean by this. I was looking at the datasheet for
PDV-P9001 for example and it even calls it a "light dependent resistor".


>  Your best bet for measuring light intensity is to measure the photocell's
>short circuit current.  This can be done with an opamp and feedback
>resistor.
>
>
>***************************************************************** Embed
>Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014,
>http://www.embedinc.com


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