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SensorsBeginnerESP32UltrasonicBeginner
Ultrasonic Alarm System
Trigger an alarm when something gets too close
Overview
Reads distance from an HC-SR04 and sounds a buzzer when an object is within range.
What You Will Build
A complete, working ultrasonic alarm system using real ESP32 hardware, sensors, and motors. You will take it home once the course is complete.
Project Details
CategorySensors
DifficultyBeginner
Time1–2 Hours Build
Classes1–2 Classes
Full Build Guide
Wiring diagrams, step-by-step build instructions, full code, and troubleshooting — available after enrollment.
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