“In this Instructable you find out how I read my Main Electricity Power use of my house and publish it via an ESP8266, Wifi, MQTT in my Openhab Home Automation.
I have a ‘smart meter’ ISKRA Type MT372, however it has no easy possiblility to export the data. Therefore I used the LED pulses to read the current Power, the LED pulses 1000 times for 1 kW/h.”