Ultrasonic Sensor Calibration Dataset — HC-SR04 (Arduino + Oscilloscope Validation)

Ultrasonic Sensor Calibration Dataset — HC-SR04 (Arduino + Oscilloscope Validation)

A complete multi-test calibration dataset for the HC-SR04 ultrasonic sensor, collected using both Arduino timing measurements and an oscilloscope for high-accuracy reference values. Ideal for students, robotics hobbyists, and anyone validating distance sensors.

Included Data (6 Sheets Total)

• Oscilloscope-based distance measurement
• Real distance (cm)
• Time-of-flight (μs)
• Calculated ultrasonic distance
• Arduino-based ranging tests (3 datasets)
• Multiple trials per distance
• Raw pulse timing (μs)
• Arduino-calculated distances
• Arduino vs Oscilloscope comparison table
• Error analysis
• Accuracy differences
• Deviations in low vs high ranges
• Different environmental/physical conditions
• Variations under changed ambient air.

Why This Dataset Is Useful

• Shows real-world noise and variation
• Includes both low-level (μs pulse) and final distance outputs
• Perfect for calibration curves, regression, or sensor error modelling
• Good for lab reports, Arduino assignments, or robotics testing

Great For

• Engineering students
• Arduino beginners
• Robotics builders
• Teachers needing ready-made sensor data
• Anyone validating HC-SR04 modules