Smart Switch Board Using Node MCU and Android.

Описание: I have demonstrated here how to makeover Regular Switch Board into Smart one, that controls appliances over wifi using Android Phone. I have used MIT APP INVENTOR PLATFORM for developing android app for this purpose. I have used base code from Internet and made changes to it as per my requirements. For hardware part, I have used Nodemcu based on ESP8266 and A 4 Relay module.
Please comment if anybody need help doing this. I also share nodemcu code and App Inventor Project for same. Thanks for watching.