Prasojo, Ipin, Andino Maseleno, Omar tanane, and Nishith Shahu. “The Design of Earthquake Detector Using Pendulum Swing Based on ATMega328”. Journal of Robotics and Control (JRC) 2, no. 3 (May 5, 2021): 209–211. Accessed September 7, 2025. https://journal.umy.ac.id/index.php/jrc/article/view/7735.