For demo video click here: https://www.youtube.com/watch?v=tMRpYmDgkL0

The NodeMCU is an open-source firmware and development kit that helps you to prototype your IoT product within a few Lua script lines. Formore details, please visit
Feature

Open-source
Interactive
Programmable
Low cost
Simple
Smart
WI-FI enabled
Ard--uino-like hardware IO

Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
Code like ard--uino, but interactively in Lua script.
Nodejs style network API

Event-driven API for network applications, which facilities developers writing code running on a 5mm*5mm sized MCU in Nodes style.
Greatly speed up your IOT application developing process.
Lowest cost WI-FI

Specification

The Development Kit based on ESP8266, integates GPIO, PWM, IIC, 1-Wire and ADC all in one board.
Power your development in the fastest way combinating with NodeMCU Firmware!
USB-TTL included, plug&play
10 GPIO, every GPIO can be PWM, I2C, 1-wire
FCC CERTIFIED WI-FI module(Coming soon)
PCB antenna
Shipping List

NodeMCU: 1pcs