Open-source,Interactive,Programmable,Low costSimple,Smart,WI-FI enabledArd--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 applicaitons, which faciliates developers writing code running on a 5mm x 5mm sized MCU in Nodejs style. Greatly speed up your IOT application developing process.Specification:The Development Kit based on ESP8266, integates GPIO, PWM, IIC, 1-Wire and all in one board. your developement in the fastest way combinating with NodeMCU Firmware USB-TTL included, plug&play10 GPIO, GPIO can be PWM, I2C, 1-wireFCC CERTIFIED WI-FI module(Coming soon)PCB antennacolour: blackMaterial: PC+metalPackage Contents:1 x Lua Nodemcu WIFI Network Development BoardOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +\/- 1-3cm.