Reading the ABB kWh meter with ESP32 over modbus, publising to Home Assistant
- ESP32 board Wemos S2-mini
- TTL to RS485 converter MAX485
- kWh meter ABB EV3 012-100
- Home Assistant Home automation software
- ESPHome to program the ESP32 (Home Assistant plugin)
- ABB Modbus documentation
ESPHome config file: abb_ev3.yaml
Screenshot from Home Assistant:
