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Line Following Behavior

This guide explores the concept of line following behavior in robotics, focusing on the robot's interaction with light and dark surfaces to navigate. Learn how to optimize the robot's movement along lines to achieve efficient tracking. Experiment with different motor power levels for improved performance on straight and curved lines. Test the line following program and switch block configurations to enhance the robot's behavior. Discover ways to make the line tracker faster and more responsive to variations in the line's curvature.

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Line Following Behavior

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  1. Line Following Behavior

  2. The robot moves forward always following the left edge of the line. The robot is on top of the line, the Light sensor see’s Dark which directs it to go left (and forward). If the robot continues this behavior it will drive off the line.

  3. The robot continues to move forward following the left edge of the line. The robot is on the light area next to the line, the Light sensor see’s Light which directs it to go right (and forward).

  4. Line Following Program

  5. Switch Block Details

  6. Light Surface Motor C Swing Turn Details

  7. Light Surface Motor B Swing Turn Details

  8. Dark Surface Motor C Swing Turn Details

  9. Dark Surface Motor B Swing Turn Details

  10. Loop Block DetailsRemember to drag the switch block inside the loop block

  11. Test the Robots Line Following Behavior.

  12. Making a Faster Line Tracker Changing the stopped motors to a lower power motor going forward still makes the robot swing but less abruptly creating a faster forward progress .

  13. Curved Line Tracking • Try the faster tracker line program, what happens to the tracker? • Try the original tracer line program, what happens to the tracker?

  14. Optimizing the Line Following Behavior for a Curved Line Different combinations of power levels yield better performance on different types of curves.

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