Sell NodeMCU ESP8266 WiFi Ver 2.0 @ 3.0 IoT Development Board Based ESP8266 Module CH340 best price

The NodeMCU (Node Micro Controller Unit) is an open-source firmware and development kit that helps to Prototype IOT product within a few Lua script lines. Features:  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 applicaitons, which faciliates developers writing code running on a 5mm*5mm sized MCU in Nodejs style. Greatly speed up your IOT application developing process. Specifications: Ver2.0. Dimensions: 49mm x 24.5mm CH340 chip USB bus conversion Color: Black Ver 3.0 Dimensions: 59mm x 31mm CH340 chip USB bus conversion Color: Black