WeMos D1 R2 CH340 CH340G WIFI Expansion Module Based ESP8266 Wireless NodeMcu Board

Description:This is a Wemos D1 R2 clone development board with integrated ESP8266 based Wi-Fi enabled microprocessor and 4MB integrated flash memory. The board uses the popular Arduino Uno form factor and a similar pin-out. This means that the board looks & works like an UNO, in most cases. Due to the common form-factor and pin-out similarity many of the UNO shields work well with this board without modification. Note unlike many other clones, this board has an integrated wireless antenna connector to provide greater flexibility and range. Feature:Arduino UNO form factorExternal Antenna ConnectorCommon CH340G USB to Serial interface (may need driver install)Micro-USB for power and connectivityDC connector for powerDigital and analog I/OReset button Power LED Specification:Micro-controller: ESP-8266EXOperating Voltage: 3.3VDigital I/O Pins: 11Analog Input Pins: 1(Max input: 3.2V)Clock Speed: 80MHz/160MHzFlash: 4MB Weight: 25gWarnings: All IOs work at 3.3V Package Included:1 x WeMos D1 R2 CH340 CH340G WIFI Expansion Module Based ESP8266 Wireless Module for Arduino UNO R3 NodeMcu Development Board