what pots can I use for the Auduino?

http://code.google.com/p/tinkerit/wiki/Auduino

says that they used 4.7k linear pots but can you can use any pot that generates 0-5v.

can i use these? http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=ca&keywords=P3K1502-ND&x=16&y=22

And is this 1.4" jack the right one to get?http://search.digikey.com/scripts/DkSearch/dksus.dll?WT.z_header=search_go&lang=en&site=ca&keywords=SC1123-ND&x=1&y=19

Thanks.

You can use any pots with the arduino. Some work better for some projects than others.

I often use 20k pots. It depends on the project as to whether you have to be specific as to which pots you use.

Mowcius

5K pots are a very good choice for Arduino projects, unless you're building something battery-powered, where you have to sweat every mA. The analog inputs on the Arduino don't have a very high impedance, so high-value pots will give you non-linear readings.

Unless there's something special you need from Digi-key (like a non-commodity chip), I would encourage you to check out one of my favorite surplus dealers: All Electronics, Alltronics, BG Micro, or Electronic Goldmine. (If you're east of the Mississippi, Marlin P Jones is good, but surface shipping to the West is a little slow, so I don't buy from them often). You'll find much better deals on common parts like pots and plugs/jacks because they often turn up on the surplus market at fire-sale prices. I got pots like the ones you're looking at for $1 per pack of 4 from All electronics a few months ago. And BG sells audio panel-mount jacks for well under a dollar.

Ran

Ran

5K pots are a very good choice for Arduino projects, unless you're building something battery-powered, where you have to sweat every mA. The analog inputs on the Arduino don't have a very high impedance, so high-value pots will give you non-linear readings.

I often use 20k pots. It depends on the project as to whether you have to be specific as to which pots you use.

I agree, I have to point out that the only reason I use 20k pots is cos I got hold of a lot :D

Mowcius

It really depends on what you are having the pot do for you. Most applications are using a pot as a user interface to continuously adjustable variable value used in a program. That usually just needs a linear taper pot of just about any standard value, although under 500 ohms you are kind of wasting current.

Applications relating to audio usage normally use a log taper pot as the change of resistance per percentage knob turned more matches the a humans logarithmic hearing characteristic.

If you are using the pot to perform fine adjustments like for calibration and such then the small 10 or 20 turn trimmer pots are very useful because they can be set precisely and are small enough to be mount easily anywhere.

Lefty