At present, all serial ports in the enumeration system are used.

Let the user select the serial port.

But some users have many Bluetooth devices on their computers.

So I don't know which serial port to choose.

Although it can be used

Bluetooth display device properties

To query the serial number,

But to pop up a dialog box,

Feel inconvenient

I hope I can automatically determine which port it is after pairing, which saves an operation step.

Improve the user experience