Bluetooth authentication code

Good evening,

it's very simple with Bluetooth:

1. either you connect an active device (PC, Mac, mobile phone,...) and a passive device (car hands-free kit, earpiece...)
2. or you connect two active devices.

In case 1, you often need to enter "0000" or "1234" on the active device.

In case 2, one device needs to request the connection and the other has to accept it. Then the first device will ask for a code. You enter the code you want, for example 9999, and a code will then be requested on the second device. You enter that code again and the connection is initiated.

Best regards,

Pierre