This product is no longer manufactured or available from 3DR.
The 3DR WiFi Telemetry Radio is supported by PX4.
Simply connect it to the flight controller's
TELEM1 port to create a WiFi "hotspot" for the vehicle with the details below:
essid: APM_PIX password: 12345678
Connect your ground control station to the above WiFi SSID. After connecting the vehicle should automatically be detected and connect to QGroundControl.