> Can someone answer the question of how to make a pot scale more
> finely If you insert a resistor in the output path, does this

divide

> the voltage and weaken the effect of the pot I don't know much

about

> circuits.

The answer is not very straightforward, as it depends on how the pot is
being used. Generally to have more control with a pot, i.e. so that
larger movements have less effect, so you can finely position it to
*just* where you want it to be, you have to reduce its value. But then
depending on how the pot is being used, you will need to add one or
more resistors to compensate for this lowering of value: if the pot is
actually being used as a potential divider (that is how the
name 'potentiometer' is derived), you will need to add resistors either
side to bring the total back up to the original value, but how much
each side will depend on where out of the total range, the now reduced
pot is to have its effect; if it is being used as a variable resistor
(the wiper connected to either end or one end left open), again another
resistor will probably be needed, but you will only need one, and which
side of the pot it goes will not matter.

If you have a particular pot in mind on a particular module, I might be
able to make suggestions on exactly *what* values to use and *where* to
add the resistors (depending on whether I have the circuit for that
module of course!), but if it was a general question, then I'd suggest
your best course of action would be to either look around on the web
for some basics electronics sites (there will be tons out there!), or
buy a beginners book (your local Maplins/Radio Shack/whatever will
undoubtedly have something suitable), and then get studying! I'm afraid
there is not substitute for you putting in some work in order to gain
some understanding of how all this stuff works!

Tim