With the Quadrature Encoder's two output channels you can measure both the position and direction of rotation of a VEX shaft. This will allow you to calculate the speed of the shaft, as well as the distance it has traveled; these are very useful measurements for autonomous programming. A Programming Kit is needed to change the program in the VEX Controller to use the Quadrature Encoder.

• 
  Measure Angular Travel.
• 
  Determine Rotational Direction.
• 
  Calculate Shaft Speed.
• 
  Calculate Distance Traveled.
• 
  Increase Navigational Control.
• 
  More Autonomous Functionality.