Rafiq, Arif Ainur, Sugeng Dwi Riyanto, and Hera Susanti. “Noise Detection System in The Classroom Using Sound Sensors and NodeMCU ESP6288”. Journal of Electronics Technology Exploration 1, no. 1 (July 30, 2023): 1-14. Accessed April 17, 2026. https://www.shmpublisher.com/index.php/joetex/article/view/185.