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Abstract: With the rapid evolution of automation and sensor technologies, radar systems have become vital tools for object detection and tracking across a variety of fields including robotics, navigation, and security. The project titled “Ultrasonic Radar System Using Arduino” focuses on developing an affordable and reliable radar prototype that can detect and determine the position of nearby objects using ultrasonic sensing integrated with an Arduino microcontroller. This system utilizes the HC-SR04 ultrasonic sensor, which transmits ultrasonic pulses and calculates the distance to objects based on the time taken for the echo to return. An Arduino UNO is employed to process this data and control a servo motor that rotates the sensor over a predefined angle range, allowing it to scan a wider area. The collected measurements are then displayed in real-time using either the Processing IDE or the Blynk app, offering a visual radar-like graphical output. Key phases of the project include hardware integration, data collection, signal interpretation, and live data visualization. The resulting radar system enables effective object detection and spatial mapping, with potential uses in domains like robotics, defense systems, obstacle avoidance, and various forms of automation. This project showcases the combination of electronics and software to create an intelligent sensing solution..
Shitole et al. (Wed,) studied this question.