This NodeMCU ESP8266 WiFi Module comes with the Lua Script Firmware.
It is Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI 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 applications, which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style. Greatly speed up your IOT application developing process.
Lowest cost WI-FI
WI-FI MCU ESP8266 integrated and easy to prototyping development kit. NodeMCU provides the best platform for IOT application development at the lowest cost.
The Development Kit based on ESP8266, integrates GPIO, PWM, IIC, 1-Wire and ADC all in one board. Power your development in the fastest way with NodeMCU Firmware!