Potentiometers

[philso]

Adding a 0.01 to 0.1 uF capacitor at the input of the Analog module should filter out most of the noise that gets picked up. It will slow down the response but probably not enough to matter in applications such as these.

Definitely use a 1k pot vs a 10k. It reduces the effect of external noise sources by 10 times relative to the effect you would get with a 10k.

It may also help if you used wires that are twisted together and shielded. This is commonly sold as "control cable". The shield drain wire can be connected to the "GND" or "-" terminal at the Analogue module.

The signal out of the pot may appear "noisy" if it has not been used for a long time (several months) and the wiper contact has become oxidized. Exercising 10 times ought to clean it up. If it is still noisy as you move the wiper, you need to get a better quality one, like the ones from Bourns.