When using WiFi capable microcontrollers, a common task is typing the credentials required to connect to a wireless network into the code, then compiling and uploading the code onto the development board.
This can become troublesome and repetitive when deploying many systems to operate in different environments, and it is not possible to hard code in the credentials for every possible wireless network connection.
With Realtek's RTL8722 development board, it is easy to configure WiFi network settings using any Bluetooth capable phone. The RTL8722 scans for wireless networks, sends the results over to the phone, and allows users to choose a network to connect to.