ESP8266 Web Sever Shield - ESP 12E WiFi expansion board Serial Uno R3
+ WiFi adopts industrial grade chip ESP8266 , the module is ESP-13 with metal shield, strong anti-interference ability.
+ The standard pin is compatible with main control boards such as Uno and Mega2560 . The voltage conversion chip is connected with UNO to make 3.3V and 5V compatible.
+ The serial port is controlled by a dual-way DIP switch, so that the expansion board can be used as an Uno expansion board alone or as an ESP8266 expansion board.
+ Serial WiFi , the program does not require any configuration.
+ Configure WiFi parameters and serial port parameters based on Web Server.
+ Can be used as an independent ESP8266 development board, download the official AT command firmware, NodeMCU open source firmware, etc.
+ It can be used as an independent Uno expansion board, and all the pins are led out.
+ Support wireless 802.11 b/g/n standard
+ Support STA/AP working modes
+ built-in TCP / IP protocol stack, you can configure a socket
+ Support standard TCP/UDP Server and Client
+ serial port baud rate support: 1200/2400/4800/9600/19200/38400/57600/74800/115200 bps
+ serial data bit: 5/6/7/8 bit
+ serial parity: no
+ serial port stop bit: 1/2 bit
+ standard UNO , Mega pin spacing
+ RESET reset
+ KEY button multiplexing configuration function
+ Two-digit DIP switch implementation and ESP8266 serial port expansion switching