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New! Keyes ESP8266 Web Sever Serial Wifi Expansion Shield ESP-13 for Arduino UNO



  • Wifi part adopts industrial level ESP8266 chip, the module carries ESP-13 metallic shield cover to realize strong anti-interference capacity.
  • The serial ports adopts dual channel dial switch to realize control, which enable this shield to work both as a shield for aduino UNO but also as ESP8266 shield.
  • The Wifi parameters and serial port parameters are configured according to Web Server
  • When work as independent ESP8266 board, it supports download official AT command firmware, NodeMCU open-source firmware.
  1. Support wireless 802.11 bgn standard
  2. Support two STAAP working mode
  3. Built-in TCPIP protocol stack, you could set up a socket.
  4. Support standard TCPUDP Server and Client
  5. Serial port baud rate support: 1200/2400/4800/9600/19200/38400/57600/74800/115200 bps
  6. Serial port date bit: 5678 bit; Serial port stop bit: 12 bit
  7. Standard Aduino UNO, Mega pin spacing
  8. Lead out Aduino Pin 2,3,4,5,6,7,8,9,10,11,12,13
  9. Lead out ESP8266 GPIO 02459101213141516ADCENUART TXUART RX
  10. Reset button; KEY button reuse configuration function
  11. Two switch dial switch to realize switch between aduino and ESP8266 serial port shield
  12. Wifi operating current: continous transmit: ≈70mA (200mA MAX), standby: 200uA
  13. Wireless transmit speed: 110-460800bps
  14. Operating temp: -4°C~ +125°C
Shipping list:
ESP8266 Web Sever Serial Wifi Expansion Shield ESP-13 *1



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