Retrieve values from EASTRON SDM72DM-V2 energy meter via RS485 (Modbus) using ESPHome
and send the values periodically to Home Assistant.
1x OLIMEX ESP32-POE (or OLIMEX ESP32-POE-ISO) or similar
1x TTL / UART to RS485 Converter (e.g.: XY-017 or similar)
1x EASTRON SDM72DM-V2 or similar
- The smart meter provides many more values. Please refer to the official documentation.
- Other EASTRON devices can be interfaced in the same way
- Other ESP32 boards can be used as well.
- The TTL / UART to RS485 board is sold under many different names. The board should not cost more than 2€.