My guess would be for relative humidity. I used to use sensors from
Panametrics and I think it was called a Microcap II ?? It worked OK and was
fairly cheap by comparison. It did have a low maximum voltage and the ap
note used a 555 circuit that can be done better with a PIC.


At 12:38 PM 2/9/00 -0500, you wrote:
>I've been quiet lately due to being busy.  Nice change, huh?
>
>I need to know what folks are using to measure humidity.  I need to know
>the humidity in a human-occupied room (it wasn't specified if it were
>relative or absolute - which do I want?) in order to keep it within comfort
>limits.
>
>What are you guys (and gals) using?  How does it interface?  If you could
>re-do the project, would you use the same thing (assuming code changes are
>acceptable).
>
>I'm hoping for a single analog or PWM input.
>
>Thanks.
>
>Andy
>
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Larry G. Nelson Sr.
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