The WiFi Module is FCC certified! ESP8266 has powerful on-board processing and storage capabilities that allow it to be integrated with the sensors and other application specific devices through its GPIOs with minimal development up-front and minimal loading during runtime. Its high degree of on-chip integration allows for minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.

Features:
- Based onESP-12E ESP8266 wifi board V3
- All I/Os output
- No need to press reset/flash for pgoramming
- Open source support: www.nodemcu.com
- R2 version had CP2102 USB-TTL instead, larger current support, slim board can put on breadboard.
- Support windows 8.1 by CP2102, and support ESPlorer

Note:
NO need to install driver for CH340 (replaced by CP2102), and NO need to flash firmware when you get it and use on first time. This is different with version R1.
To use on the first time, NO need to flash the firmware, run command file.remove(user.lua) as instructed, see the attached image. Baud rate 9600

To flash R2, please see the update on our Nodemcu wiki page:http://www.electrodragon.com/w/ESP8266_NodeMCU_Dev_Board#R2_Version_Flash_Note Baud rate 115200
High quality USB cable is needed for this board to give high current supply, otherwise your board wont be recognized.

Package include:
1 x NodeMcu Wifi Module

Specs: