Arduino ESP-13 Wifi Shield (ESP8266)

The Arduino ESP-13 WiFi Shield (ESP8266) is designed based on the ESP8266 and is compatible with Arduino UNO / Mega2560. The WiFi module uses the industrial-grade ESP8266 chip with metal-shielded ESP-12E, providing strong anti-interference capabilities. A voltage converter chip is included to handle 3.3V (ESP8266) and 5V (Arduino). Dual DIP switches are used for serial ports, allowing this module to function both as a standalone Arduino Uno expansion shield and as an ESP8266 expansion module. Serial data is transparently transmitted to and from the WiFi device, and the Arduino program requires no configuration. A WebServer is provided to configure WiFi and serial port parameters.

The shield module can also be used as an independent ESP8266 development board. For example, the official AT command firmware can be installed, or NodeMCU open-source firmware can be used. Additionally, it can serve as a standalone expansion shield for Arduino Uno.