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VEX Robotics Optical Shaft Encoder Kit No reviews yet Rating: none Availability: In Stock Price: $19.99 VEX VEX Item #: 276-2156 - For use with the Vex Programming Kit. 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... [more info...]

VEX Robotics Speaker Module No reviews yet Rating: none Availability: In Stock Price: $7.49 VEX VEX Item #: VEX-276-1504 - Use the VEX Speaker Module to output sounds from the VEX Cortex Microcontroller. Use the VEX Speaker Module to output sounds from the VEX Cortex Microcontroller.FeaturesConnects to Speaker port on the Cortex Microcontroller.Volume controlled by internal knob.2.1in. Diameter1in.... [more info...]