User's Manual

17
The default service UUID of the module is 0x0000b350-d6d8-c7ec-bdf0-eab1bfc6bcbc;
The default TXD characteristic value UUID is 0x0000b351-d6d8-c7ec-bdf0-eab1bfc6bcbc, which
is the channel that the adapter sends to the master device.
The default RXD feature value UUID is 0x0000b352-d6d8-c7ec-bdf0-eab1bfc6bcbc, which is the
channel that the master device sends to the adapter.
4. Click the NOTIFY button to the right of the TXD feature value to enable the PC serial port to
send the data "Hello World" to the serial port of the adapter, and the mobile terminal will receive
the data and display it in hexadecimal format.