We have designed ESP32 Energy Meter Relay Controller – KinCony M1 (ESP32 1 channel AC voltage and current energy monitor) for home automation DIYer. it can easy integrate to home assistant by ESPHome. it use by BL0942 energy chip, support by ESPHome. the hardware have BL0942 sensor + 1CH DIGITAL INPUT port + 1CH ZMPT107-1 voltage sensor + Ethernet POE+ WiFi + Bluetooth + 30 Relay. It have I2C bus extender terminal.