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Video 22: Measuring Distance with the HC-SR04 Ultrasonic Sensor

Learn how to measure distance using the HC-SR04 ultrasonic sensor with a Raspberry Pi, including wiring, coding, and unit conversion. Explore troubleshooting tips, understand distance measurement principles, discover practical applications, and receive a homework assignment to measure the speed of sound experimentally.

1. Introduction: Overview of the tutorial and sponsorship acknowledgment.

2. Previous Assignment: Recap of the HC-SR04 sensor assignment from the previous lesson.

3. Setup and Wiring: Explanation of the wiring setup, including connection to the Raspberry Pi.

4. Code Explanation: Understanding the code for measuring ping travel time and distance.

5. Troubleshooting: Tips for identifying and fixing coding errors.

6. Understanding distance measurement: Explanation of ultrasonic sensor principles.

7. Correction factor: Recognizing the correction needed for accurate distance measurement.

8. Unit Conversion: Discussion on converting units for accurate measurement.

9. Practical applications: Exploring real-world uses of ultrasonic sensors.

10. Fusion 360 integration: Encouragement to combine Raspberry Pi skills with 3D printing knowledge.

11. Homework assignment: Challenge to experimentally measure the speed of sound using the sensor.

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