Design and Implementation of an Arduino Based Visitor Counting and Capacity Control System Using US-015 Sensor: Rancang Bangun Sistem Penghitung dan Pengendali Kapasitas Pengunjung Berbasis Arduino Uno dan Sensor US-015. (2026). JISTECH: Journal of Information Science and Technology, 15(2), 34-45. https://doi.org/10.30862/d0ryxm73