Hi all,
It's a basic question about variable resistor. First How to use a variable resistor. Second why there are three pins of a variable resistor. Instead of three I think two will be enough.
>The other advantage of 3 pins is you can select clockwise or >counterclockwise to increase or decrease the resistance.
New to posting to the forum, so if I make a mistake, oops.
I beg to differ with you. You were correct regarding voltage division, but even a two-terminal pot will increase or decrease the resistance based on turning it.
If you connect to one set of pins the resistance will increase clockwise, the other set the resistance will increase counter counterclockwise. We are not talking 2 pin pots, but three pins where only two are used. 3 pins are the norm in potentiometers.