Getting Started with NodeMCU

Hello Friends,

Today we will write first program for NodeMCU3 that is led blinking. NodeMCU3 has esp12e and ch340 (USB-TTL) on-board. It can be connected to PC/ Laptop via USB mini(type B) data cable.

Let's get started.

All we need is NodeMCU3 and arduino IDE.
LED and resistor

First of all, install required library for nodemcu and install the driver for ch340.

Go to this link for driver installation

Download

After downloading, install the driver.

Open Arduino IDE, in File menu go to preferences, additional board manager URL, type

http://arduino.esp8266.com/stable/package_esp8266com_index.json

Preferences

Now, we have to install board,

Check this video:

Finally upload the program.

Voila! led is blinking