int max_ultrasonic_distance_cm = 400; // set the maximum measureable distance for the ultrasonic sensor to 400cm NewPing sonar(ULTRASONIC_TRIGGER, ULTRASONIC_ECHO ...
This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...
The Smart SMS Alert System using Seeed Studio Xiao ESP32 is one of the compact IoT projects that uses an HC-SR04 ultrasonic sensor to detect nearby movement. The system acts like a motion detector ...
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