REC Unit 4: Sensors introduces students to open and closed loop robotic navigation using sensors. Building on programs constructed in Unit 2, students add digital bumper switches, ultrasonic range-finding sensors and line-following sensors to the BaseBot so that it can interpret its environment autonomously. Students learn advanced drive functions to simplify the autonomous control of the robot. In the final project the robot must autonomously locate and interact with objects on the playing field in a specified time period.
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