If you want a NodeMCU device that could help you to control all your house electrical devices, then this will be your best guide
A simple device that turns the lights on when the user approaches home.
This project shows the integration of hardware with mobile application. The user can control equipment from his phone over the internet.
I made LED EyeBall controlled by Blynk using Adafruit Feather 32u4 Bluefruit LE. I can easily using Blynk!!
I changed ordinary boring desk lamp into Blynk controlled device :)
A smart Christmas tree controlled by your smartphone using Blynk and ESP8266.
It is a lamp or desk lamp that is controlled by your phone for when you need the light to get to your bed, but not once you are in bed.