Ultrasonic Distance Sensing

Master distance measurement and object detection using ultrasonic sensors

Ultrasonic Sensor Basics
Lesson 1

Key Concepts:

  • Understanding ultrasonic sensing
  • HC-SR04 sensor pinout
  • Basic wiring setup
  • Sensor working principles

Sample Code

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Distance Calculation
Lesson 2

Key Concepts:

  • Sound wave principles
  • Time of flight measurement
  • Converting time to distance
  • Understanding sensor limitations

Sample Code

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Object Detection
Lesson 3

Key Concepts:

  • Setting detection thresholds
  • Filtering false readings
  • Motion detection
  • Object presence sensing

Sample Code

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Range Finding Projects
Lesson 4

Key Concepts:

  • Building a distance meter
  • Parking sensor system
  • Room mapping
  • Obstacle avoidance

Sample Code

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