Hatem, Haraa Raheem, Ali I. Abdalla, and Zainab Najeeb Abdulhameed Al-Rawi. “Design and Implementation of Ultrasonic Radar System for Distance Measurements Using Arduino”. International Journal of Engineering and Technology 7, no. 4 (September 5, 2018): 3115–3118. Accessed May 13, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/21549.