“Design of a Two-Axis Pointing Sensor System (Azimuth and Elevation) Based on Servo Motors Using HC-SR04 Ultrasonic Sensors As Part of the SEWACO Subsystem : Rancang Bangun Sistem Pointing Sensor Dua Sumbu (Azimut Dan Elevasi) Berbasis Servo Motor Menggunakan Sensor Ultrasonik HC-SR04 Sebagai Bagian Dari Subsistem SEWACO ”. Procedia of Engineering and Life Science 10, no. 1 (October 16, 2026): 701–712. Accessed October 24, 2026. https://pels.umsida.ac.id/index.php/PELS/article/view/2943.