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REC 1 Unit 4 Study Guide

Across
Have only 2 possible states or positions.
Provides a wide range of information to the robot's controller.
Sensor that measures reflectivity values for on-the-line and off-the-line.
Used to provide information to the controlling program.
Are used to provide feedback to the controller in order for the program to make a decisions.
Down
Take distance measurements without contacting the target object.
Only returns the distance to the closest object.
Are programmed to use feedback from their sensors and make their own decisions about what action they take.
Relies on its own light source.
Detects special markings on a wheel to count the number of rotations the wheel makes.
Contains 4 digital sensors: 2 bumper switches and 2 limit switches.