Best potentiometer value to buy

Other Hardware General Electronics
1

I have the choice between buying 15 potentiometers with a 10k value.
Or I can buy 15 potentiometers with 15 different values.
I want to use them to fade light, choose item in list (on LCD), adjust volume, etc.
Do potentiometer values matter a lot or any will do?

2

10K will do for all of that. Value on pots aren't critical.

3

Thanks for quick reply!

4

Hi, Lots of Pot info and examples HERE:

If you like THESE: I'll give you the 10% educational discount and $5 shipping...

DISCLAIMER: Mentioned stuff from my own shop...

5

No I buy them from eBay sorry. (10 for 1$)

6

Croutonix:
I have the choice between buying 15 potentiometers with a 10k value.
Or I can buy 15 potentiometers with 15 different values.
I want to use them to fade light, choose item in list (on LCD), adjust volume, etc.
Do potentiometer values matter a lot or any will do?

Will you be reading the pots from software everytime, or using them directly in
circuits??

7

Mainly from software, but for things like adjusting screen contrast they will be used in circuit directly. That makes me wonder, I do I read the potentiometer value from software?

8

From software 10k (linear) is a good standard value - if mounted remotely add 0.1uF cap to ground on
the analog pin to reduce noise.

Any analog circuit and the value depends on the circuit - can't help there (sometimes log
law or reverse log law will be appropriate for instance).