----- Original Message -----=20
From: "Olin Lathrop" <olin_piclist@embedinc.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Monday, September 13, 2010 1:33 PM
Subject: Re: [OT] Got my keyboard wet, need help


>V G wrote:
>> Also, I measured the resistance of my tap water. The multimeter is
>> showing anywhere between 2.5 - 5 million ohms.
>
> Then you must be shorting the probes or you really shouldn't be drinking=
=20
> it.
> Did you scoop it straight out of lake Erie or something?  Also, a single
> Ohms value is meaningless for bulk resistivity.  measuring the resistance=
=20
> of
> two probes somewhere in the bulk material is greatly effected by their
> separation and diameter.
>
>> Would such a high
>> resistance REALLY interfere with electronics inside the keyboard?
>
> It's actually a very low resistance, so yes it definitely would.  However=
,
> 5mOhms is surely due to severe measurement error.
>
>
> ********************************************************************

I took that as 2.5 - 5 MILLION ohms (as he wrote i.e. 2.5MOhms) not=20
milliohms

Dom=20

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.