Many Potentiometers, few pins - Help me help myself!

Using Arduino General Electronics
#1

Hey guys!

Situation: Basically I'm trying to use many Potentiometers with as little pins on the arduino as possible, kinda like a Shift Register works but the other way round.. with pots.

Problem: I tried and tried googling how to do this, but I simply don't know what to search for exactly, so if anybody can point me in the right direction - that would be awesome. Alternatively links or suggestions would be great, too!

Thanks for any help in advance,
Ratner

#2

Use analogue switches, this project shows you how to start with this:-
http://www.thebox.myzen.co.uk/Hardware/MIDI_Footsteps.html

#3

First step - re-think on why you need so many potentiometers.

There are nowadays other ways of doing things.

#4

Do you need each pot on its own set of pins?

#5

I'd suggest an analog switch chip, such as DG408 or DG409.
Can then read one at a time using analogRead().

#6

Hi,
What is your application that needs many (how many) pots, what do you want the controller to do with these inputs?

Can you draw a diagram of what you are trying to do?

Tom.... :slight_smile:

#7

One suspects another dead end.

#8