How Does a W5500 Wired ESP32 Monitor 3-Phase Power at a BMKG Geophysics Station?
A peer-reviewed 2026 paper wires an ESP32, three PZEM-004T sensors, and a W5500 Ethernet module into the BMKG Sleman station LAN to log 3-phase kWh in MySQL.
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Components
Hardware components
WIZnet - W5500
x 1
Ethernet module on the ESP32 SPI bus, the only network interface of the deployed instrument. Sends all 3-phase measurements over UTP cable into the BMKG Sleman station LAN.
Project description
A Weather Agency Station That Meters Its Own Building Nine Indonesian authors built a 3-phase electricity monitor: eight undergraduates in the Applied Instrumentation program at STMKG, the state college of meteorology, climatology, and geophysics in Tangerang, and Arif Kurniawan of Geophysics Station Class I Sleman, a BMKG field station in Yogyakarta. Their peer-reviewed paper in the Journal of Computation Physics and Earth Science (JoCPES, Vol. 5 No. 2, pages 137 to 144) documents a system that was not left on a lab bench. It was mounted on the station wall, wired into the office LAN, and…
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