If you want a NodeMCU device that could help you to control all your house electrical devices, then this will be your best guide
Control an external LED light from anywhere in the world using the ESP8266. The GPIO pin serves as an output source to the LED.
An ultimate tutorial for beginners on how to connect and use an ESP8266 via Arduino and program it to blink an LED using the Blynk app.
A smart iot outlet controlled by Google assistant, learn how to connect blynk with ifttt
I wanted to make a robot. However, I could only make a foot because my money ran out.
CaRo is a cable robot that enables easy and cost-effective entry into programming and robotics.
Control your robot from a Wi-Fi network using an ESP8266 Wemos D1, Arduino IDE and Blynk App!
Yulee Rover is an Arduino Uno powered robot.
This is a very simple project, were the main idea is to explore how to control servos via internet using NodeMCU and Blynk.