The is a mini WiFi board based on ESP-8266 WLAN WiFi Internet Development Board Base on ESP8266 for , WeMos , MicroPython, NodeMcuThe WLAN board comes with 11 digital input / output pins, 4M bytes, all pins have interrupt / pwm / I2C / 1-wire and a -USB portWIFI Development Board is used for IDE as programming, and support OTA on line development board, you can use it to create and interesting thingscolour: blueMaterial: plastic + metalPackage Contents:3 x WLAN WIFI Internet Development BoardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.