When one USR module works in AP mode, it opens a UDP port used to receive fast access Wi-Fi commands.
A mobile device can directly connect to the Wi-Fi network of the module.
USR Link can then be used to send commands to the USR module to search a router list and set the network SSID and password.
After the completion of setup, the USR module will automatically restart, connect to the router, and work in STA mode.
9Apps 4.9
