International Journal of Engineering and Information Systems (IJEAIS)

Title: A Microcontroller-Based Ultrasonic Intrusion Detection System for Low-Cost Security Applications.

Authors: Samson Josiah, Lizibert Nyella, Christiner Christopher, Scholastica Seja

Volume: 9

Issue: 6

Pages: 209-210

Publication Date: 2025/06/28

Abstract:
Security is a growing concern globally, especially in low-resource settings where traditional systems are often unaffordable. This paper presents the development and evaluation of an ultrasonic intrusion detection system utilizing a microcontroller platform. The system combines the HC-SR04 ultrasonic sensor, Arduino Uno, GSM module, and a buzzer to detect intrusions and provide real-time alerts. It emphasizes affordability, simplicity, and effectiveness for applications in homes, offices, and small businesses. The study includes technical design, software development, user perception, performance evaluation, and ethical considerations. Results indicate that this low-cost system can accurately detect motion and notify users within seconds, making it a promising tool for enhancing personal security.

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