Gravity: RS485 IO Expansion Shield for Arduino Category_Motor & Servo Controllers/Motor Controllers * 2 x GPIO ports

* 2 x GPIO ports supports:

You can connect to your own WiFi networks or create your own with "Soft AP" mode

It can be changed to 19200 or 38400 if you wish

Version Upgrade : Kit 2

Gravity: RS485 IO Expansion Shield for Arduino Category_Motor & Servo Controllers/Motor Controllers * 2 x GPIO portsOur IO expansion board is evolving, the RS485 IO Expansion Shield is now supporting Xbee and has color coded pin header. It combines our popular Xbee shield with IO expansion shield. It even supports SD module card which provides the ultimate functional expansion for Arduino so far. As its predecessor, it supports RS485, APC220 Radio Communication Module , Bluetooth, Xbee communication, servo control. ESP8266 Arduino Programming Tutorial DFRobot. com