NodeMCU (ESP8266 WiFi Programming & Development Kit)(Original CP2102 Chip)

NodeMCU is an open source development board and firmware based in the widely used ESP8266 -12E WiFi module. It allows you to program  the ESP8266 WiFi module with the simple and powerful LUA programming language or Arduino IDE.

With just a few lines of code you can establish a WiFi connection and define input/output pins according to your needs exactly like arduino, turning your ESP8266 into a web server and a lot more. It is the WiFi equivalent of ethernet module. Now you have internet of things (iot) real tool.

With its USB-TTL (Original CP2102 Chip) , the nodeMCU Dev board supports directly flashing from USB port. It combines features of WIFI accesspoint and station + microcontroller. These features   make the NodeMCU extremly powerful tool for Wifi networking. It can be used as access point and/or station, host a webserver or connect to internet to fetch or upload data.