how to use button press for authentication?

[balaji]

Hi, Is it possible to use button press(button on slave) as an authentication key to establish the connection. Since our device does not have an display or keyboard, we are planning to use the button press as a permission for the master to connect with the device. If it is not possible suggest me alternative ways, which can make easy authentication.

Regards, Balaji

[balaji]

Thank you for the reply Torbjorn, as you said we are k with switching between non connectable to connectable advertising mode, If possible please tell us how to implement it.