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Vex IQ Education Kit (2nd gen)
This model adds the optical sensor to the 3-Wheel Base pointing downward, which allows it to sense lines on the ground or follow the edge of a line.
Three sample programs are provided: A utility program that allows you to easily measure the brightness that the sensor sees, a program to drive around and stay inside an area marked with lines on the ground, and a program to follow the edge of a straight or gently curving/angled line.
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