> I would like to make a tachometer
> all i can find on the web are examples of freq meters

What's the difference!?

A PIC CCP module used in capture mode is very useful for period measurement.
You then do a divide to get the frequency.  I've done a bunch of these all
with slightly different wrinkles.  One series of these used a 16C923 which
has a CCP module and built in capbility to drive raw LCD digits.  Once the
input signal is converted to a digital pulse train, the rest is pretty much
the PIC, a 4 or 5 digit LCD display, and wires.  That's about as simple as
it gets.


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