ESP8266 – NodeMCU PinOut

For those that starting with the Node MCU ESP modules, I have made some pinout diagrams, their functions and how to use them. The Node MCU ESP8266 12-E chip comes with 30 GPIO pins.

NodeMCU v3 high resolution pinout and specs – Renzo Mischianti

Nodemcu ESP8266 Pinout, Specs, Versions with detailed board layout

ESP 8266 Pin Designations - Networking, Protocols, and Devices - Arduino Forum

ESP8266 Pinout Reference - Last Minute Engineers

Installing ESP8266 Board in the Arduino IDE: Step-by-Step Guide

NodeMCU Pinout and ESP-12E Pinout

ESP8266 Pin Diagram

NodeMCU V3 ESP8266 Pinout and Configuration - CyberBlogSpot

GPIO pins of ESP8266 and How to use efficiently -IoTbyHVM

Easy Electronics Easy Electronics NodeMcu WiFi Development Board - ESP8266 Price in India - Buy Easy Electronics Easy Electronics NodeMcu WiFi Development Board - ESP8266 online at

How to interface Arduino, esp8266 or esp32 to RS-485 – Renzo Mischianti

NodeMCU ESP8266: Details and Pinout : 11 Steps - Instructables

ESP12 problems with pins D3 and D4 - Project Guidance - Arduino Forum