David Harris
> Hi-
> Howabout something that changes its resistance with moisture - maybe a
> piece of black electrically conducting foam?
> David
>
> cdb wrote:
>
> > I'm looking for suggestions for making a rain sensor using Infra-
Red
> > techniques.

   Howabout something that changes its weight with moisture - maybe a
piece of foam? pressing down on a switch.

 Mike.

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