Administrator The rbAmp UI Series — 1 to 7 Metering Channels on a Single I²C Bus for Your SCT-013 If you have ever tried to meter more than one circuit with PZEM-004T boards, you know the pattern: one board per circuit, one UART per board, a nest of wiring, and no shared timebase between them. The... 12/08/2026
Administrator Why Three Single-Phase Meters Can't Measure Your 3-Phase Power The setup everyone builds You have a three-phase supply and you want it in Home Assistant, so you do the obvious thing: three single-phase meters — a PZEM, a Shelly EM, an ATM90E32 board — one per pha... accuracy energy-monitoring home-assistant power-measurement sampling three-phase 29/07/2026
Administrator How CT Energy Measurement Really Works — From Clamp to Kilowatt-Hours You clip a current transformer around a wire, wire it into an ESP32, and Home Assistant lights up with watts and kilowatt-hours. Then you check it against the meter on the wall — and the numbers don't... accuracy ct-clamp current-transformer energy-monitoring home-assistant power-factor 28/07/2026
