author	title
Maurizio Giunti	Arduino Power Monitor (Read from a Shelly EM and displays power use or power production)

Overview

What does it do? This project includes sketches for a Power Meter Display built on NodeMCU ESP8266 board and OLED display. The power display will poll power data from a Shelly EM device in the local network and show them on the display as in the image below.

Resources Here it is a scheme of the project:

NodeMCU ESP8266 wiring scheme is the following:

Full descriptive post on my blog (Italian language only, sorry):

https://mauriziogiunti.it/un-power-monitor-per-l-impianto-fotovoltaico-con-arduino