1 - SDIO interface
2,3 - Module breakout for accessing HCI UART and other functionality
3 - RED bean module

Connect RED bean to a power source (e.g. your computer) via the standard sized SD Card slot.
You may also modify the power voltage by setting the J1 jumper to provide 1.8V (SDIO 3.0) or 3.3V (SDIO 2.0).

Your device needs to be able to communicate with your operating system.
Please follow the corresponding tutorial listed under Software How To to compile and install the driver for your specific platform.

Your device should now be available via commands such as iw, ip l, ifconfig and ready for use.