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Get even more creative with your robots by limiting action in programmed behavior. Kit includes a pair of simple limit switch sensors custom built for the VEX Robotics Design System. Switches send a signal to the Microcontroller when that are triggered. These switches are great for signaling when a robot arm has reached the top or bottom of it's motion. A Programming Kit is needed to change the program in the Vex Controller.

When the limit switch is not being pushed in, the sensor maintains a digital HIGH signal on its sensor port. This High signal is coming from the Microcontroller. When an external force (like a collision or being pressed up against a wall) pushes the switch in, it changes its signal to a digital LOW until the limit switch is released. An unpressed switch is indistinguishable from an open port.

Provide feedback to Microcontroller as events "happen"
Bendable sheet metal switch "arm" is very versatile
Useful as a trigger in a variety of applications
Functionality is pre-programmed in the VEX Microcontroller