Obi Suhardi Lumbantobing F, Rahmaniar, Siagian P. Design and Build a Solar Panel-Based Water Level Detection Device with LED Indicator and Buzzer. ICDSET [Internet]. 2025 Jun. 24 [cited 2025 Dec. 9];:535-41. Available from: https://proceeding.pancabudi.ac.id/index.php/ICDSET/article/view/394