How to make a smart distribution board with WiFi and display.
It can measure voltage, power, current, frequency, power factor, energy, and temperature and sends data to the internet.
It uses ESP8266 and can be programmed just like an Arduino.
Power measurements are done by PZEM004T100A v3.0
Code and circuit you find here: https://github.com/electricalpro/Sma...
Power module you can get here: https://s.click.aliexpress.com/e/_9hYStD
ESP8266 here: https://s.click.aliexpress.com/e/_97j7kp