Potentiometers

[dullard]

Is there a (relatively inexpensive) device that I can change resistance electronically?

I'm thinking of a potentiometer where you can change the resistance by turning a knob. Is there anything similar where you can send it an electrical signal (like a series of digital pulses) and have the resistance change?

 

[PottedMeat]

Here are a few from MAXIM

http://www.maxim-ic.com/DigitalPotentiometers.cfm

Just order some free samples if you need a few to test out.

 

[dullard]

Thanks. That looks very much like what I wanted. Now I just need to see if they can handle the current. And get more technical data.

 

[cavemanmoron]

Originally posted by: PottedMeat
Here are a few from MAXIM

http://www.maxim-ic.com/DigitalPotentiometers.cfm

Just order some free samples if you need a few to test out.