ESP8266 WIFI NodeMCU Lua V3

Features

Open-source

Interactive

Programmable

Low cost

Simple

Smart

WiFi enabled

Arduino-like hardware IO

Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware

Code like Arduino, but interactively in Lua script

Nodejs style network API

Event-driven API for network applicaitons, which faciliates developers writing code running on a 5mm*5mm sized MCU in Nodejs style

Greatly speed up your IoT application developing process

Lowest cost WiFi

Input Voltage:

3.3V via 3.3V pin

5.0V via Vin or USB