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Arduino-Based Ultrasonic Distance Alarm System

This project develops an Arduino-based distance alarm system using an HC-SR04 ultrasonic sensor. The system continuously measures the distance of nearby objects. Green, yellow, and red LEDs indicate safe, warning, and danger zones, while a buzzer sounds when an object is too close. The project demonstrates how sensors, LEDs, and buzzers can work together through Arduino programming.

131 views 2026-07-20T07:33:50.644008 10 technologies
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Arduino-Based Ultrasonic Distance Alarm System
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This project develops an Arduino-based distance alarm system using an HC-SR04 ultrasonic sensor. The system continuously measures the distance of nearby objects. Green, yellow, and red LEDs indicate safe, warning, and danger zones, while a buzzer sounds when an object is too close. The project demonstrates how sensors, LEDs, and buzzers can work together through Arduino programming.

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