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PZEM-016 with ESP32 and ESPHome: RS485 AC Energy Monitoring
Quick summary: The PZEM-016 measures single-phase AC voltage, current, active power, frequency, power factor and accumulated energy. Its external current transformer (CT) goes around one conductor; its mains measurement terminals sense the circuit voltage; and its RS485 port sends the…
PZEM-017 with ESP32 and ESPHome: RS485 DC Energy Monitoring
For a 12 V or 24 V solar system, an off-grid battery, or a DC distribution panel, watching the instantaneous voltage tells only part of the story. You may also want to know the current passing through a load, its…
INA260 with ESP32 and ESPHome: DC Current, Voltage and Power Without an External Shunt
MAX17043 with ESP32 and ESPHome: LiPo Battery Percentage, Voltage and Deep Sleep
INA3221 with ESP32 and ESPHome: Three-Channel DC Power Monitoring
INA226 with ESP32 and ESPHome: DC Voltage, Current, Power and Energy Monitoring
HLW8012 with ESPHome: Voltage, Current and Power Monitoring
Configure HLW8012 voltage, current and active-power monitoring in ESPHome for an enclosed Sonoff POW R1, with calibration and Home Assistant energy totals.
CSE7766 with ESPHome: UART Power Monitoring for Sonoff POW R2
Configure the CSE7766 meter in a Sonoff POW R2 with ESPHome: verified UART settings, live AC measurements, daily kWh and Home Assistant setup, with essential mains-safety guidance.