Use a op-amp.

    KreAture

----- Original Message -----
From: "Torben Lund" <torben@PET.AUH.DK>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, January 30, 2003 9:12 AM
Subject: [EE]: waterlevel (on/off) on a PIC pin


> How can I interface 2 pins of metal to a PIC etc. for detecting waterlevel
> (on/off)? -the resistance between the 2 pins is several Mohms with water
> and the circiut is of cource open with no water.
>
> /torben
>
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