“Sistem Monitoring Energi Listrik 3 Fasa Berbasis IoT Dengan Protokol Modbus RS-485 Menggunakan ESP32 ”. Journal of Instrumentation and Hardware 3, no. 2 (December 22, 2025): 1–10. Accessed October 8, 2026. https://jih.akamigas.ac.id/index.php/inhardware/article/view/72.