Rotation sensors?

[Jason Law]

Originally Posted by apalrd

You could use a multi-turn pot (one that has a range covering more than one turn)

Or you could use a magnetic encoder. When you attach the circular magnet to a shaft, it measures the angle of the magnet and outputs a value which is analog which you can read with the cRio's ADC. Two of them come in the kit. Note that every time the angle hits 0 degrees, it wraps around to 360 degrees (same with 360 degrees to 0 degrees).

Great thanks!

[Brandon_L]

Where can we get an frc legal potentiometer?

[Alan Anderson]

Originally Posted by Brandon_L

Where can we get an frc legal potentiometer?

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).

[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.