ESP8266 Modbus RTU communication with Energy meter EM6400NG











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In this tutorial I have shown how we can connect ESP8266 using MAX485 to TTL or MAX232 converter. • Protocol :- Modbus RTU. • For demonstration Schnieder make EM6400NG energy meter is used. • Example code :- https://github.com/ashish8284/ESP8266... • GoodweDT /Mt inverter Integration Code:- https://github.com/ashish8284/ESP8266... • All customization can change in settings.h file. I.e WiFi credentials, Mqtt server credentials, Mqtt payload topic etc.(for adafruit.io connectivity, efer below mentioned repo. as this feature implemented in that.) • Growatt Inverter integration Code:- • https://github.com/ashish8284/ESP8266... • Feture:- webpage for local monitoring, OTA enabled, Adafruit.io connectivity. • Hardware :- • MAX485 To TTL converter • MAX232 To TTL converter • ESP8266 wemosD1Mini • Modbus Library :- https://github.com/emelianov/modbus-e... • this library work with ESP8266 ESP32 both chip. • Credit :- Special thanks to creator of this library :- Alexander Emelianov

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