Fasyah, M.N.A., Kemas Wahyu Hidayat and Dedy Haryanto 2026. Automatic Fan With Ultrasonic Distance Sensor HC-Sr04. JURNAL TEKNOLOGI DAN OPEN SOURCE. 9, 1 (Jun. 2026), 209 - 216. DOI:https://doi.org/10.36378/jtos.v9i1.5262.