You don't need a PIC for that. It's an oscillator that feeds the test pins
and a AC mV meter across them. You can make one with 2 transisotrs or a
more fancy one using hex inverters from a sixpack (CD4069 etc) used in
linear mode. If you're new to this, buy a kit, else you will tinker quite
a lot with it until it works right (and since you're asking you don't know
the theory behind it).

Peter

On Tue, 30 Apr 2002, A.J. Tufgar wrote:

>Lately I've started to fix a few pieces of electronics equipment and I'm
>=
>realizing an ESR meter would be very useful.  ;)  I'm doing it at home =
>and not for a buisness, so I don't really want to purchase a meter so =
>I'd like to build one.  I was wondering if anyone has a plan for one?  =
>Or if anyone has a good explaination how it works?  I looked around the
>=
>net and they're all kits, but the concept seems so simple and would be =
>dead easy with as pic say 12C518?
>
>Thanks,
>Aaron Tufgar
>
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