Rifqah, Raden Ayu Nurfadhillah, Sri Wahyu Suciyati, Arif Surtono, and Gurum Ahmad Pauzi. 2023. “Design of a Classroom Noise Monitoring Tool Using a KY-037 Sound Sensor Based on Wemos D1R1”. Journal of Energy, Material, and Instrumentation Technology 4 (4):125-35. https://doi.org/10.23960/jemit.v4i4.118.