SunFounder PiCar-X Kit
5.8 Video 5: Greyscale Line Tracking
This video tutorial explores greyscale line tracking using the PiCar-X robot:
• Line Detection: Demonstrates how the robot detects a black line on a white surface using a greyscale sensor,
allowing it to track or drive over the line.
• Python Code Explanation: Explains the Python code involved in line tracking, detailing the import of modules,
creation of objects, and logic for responding to line detection.
• Practical Demonstrations: Provides demonstrations of the robot detecting and following lines on different
surfaces.
• Troubleshooting and Tweaking: Discusses the need for tweaking and fixing the code for better line tracking
performance.
This lesson offers a comprehensive guide on implementing greyscale line tracking in the PiCar-X, including practical
demonstrations, code walkthroughs, and troubleshooting tips.
Video
Related On-line Tutorials
• 5. Line Tracking
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5.9 Video 6: Cliff Detection
This tutorial provides essential insights into programming and utilizing cliff detection in the PiCar-X robot.
• Introduction: Explains the use of a grayscale sensor in PiCar-X for cliff detection by measuring surface reflec-
tions.
• Python Code Walkthrough: Covers the code for cliff detection, detailing sensor setup, and program logic.
• Demonstration and Testing: Shows the robot detecting cliffs and reacting, with steps on running and testing
the code.
• Auto-Start Setup: Guides on configuring the Raspberry Pi to run the cliff detection script on boot.
• Practical Application: Demonstrates the robot’s response to different surfaces and edges, highlighting its cliff
detection capability.
5.8. Video 5: Greyscale Line Tracking 99
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