Use CH340G to replace CP2102.
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 applicatons, which facilates 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
1X NodeMcu Lua Wireless WIFI Internet Development Board based on ESP8266 CH340G