Rotation sensors?

[Brandon_L]

Originally Posted by Alan Anderson

Wherever fine potentiometers are sold. There are no particular restrictions on what kind you can use (as long as you don't violate any other robot rules).

Ok, and then you wire them to where?

[Alan Anderson]

A potentiometer has three connections. They all go to an input on the Analog Breakout. Using a standard PWM extension cable, the black wire (ground) goes to one end of the pot, the red wire (+5 volts) goes to the other end, and the white wire (signal) goes to the pot's wiper.

[Al Skierkiewicz]

In general, single turn pots have ~270 degrees of rotation. Don't depend on all of them having this specification. Check the data to be sure and then expect something less. Never use the entire 270 degrees.