ESP8266 Web Sever Serial WiFi Shield Board Module With ESP-13

Features: 
Can be used as stand-alone expansion board Arduinos use, pin all leads 
Real serial WiFi, Arduinos program without any configuration 
User Manual: https://fineshang.gitbooks.io/esp8266-based-serial-wifi-shield-for-arduinos-user/content/ 

Specification: 
Wireless 802. 11 b /g /n standards 
Support for STA / AP two modes of operation 
Built-in TCP / IP protocol stack, you can configure a socket 
Supports standard TCP / UDP Server and Client 
The serial port baud rate support: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 / 57600 / 74800 / 115200 bps 
Serial data bits: 5 / 6 / 7 / 8 bits 
Serial Parity: None 
Serial port stop bits: 1/2 bit 
The standard Arduinos , Mega pitch 
Leads out Arduinos Pin 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 
Leads out ESP8266 GPIO 0 / 2 / 4 / 5 / 9 / 10 / 12 / 13 / 14 / 15 / 16 / ADC / EN / UART TX / UART RX 
RESET reset 
KEY multiplex configuration function keys 
Two DIP switches enable switching Arduinos and ESP8266 serial port expansion 
WiFi current: continuous transmission: ≈70mA (200mA MAX), Standby: < 200uA 
Wireless transmission rate: 110-460800bps 
The working temperature: -40 ℃ ~ + 125 ℃