NRF Dongle As Central with IO capability as Display Only

[Pavithra-N2105]

When using the nRF52840 Dongle as a central device with the Blatann interface and IO capability set to DisplayOnly, the on_passkey_display_required callback does not get triggered during pairing. How can we correctly capture or display the passkey in this configuration? Is there a recommended approach to handle passkey display when the central device is expected to show the passkey?

[ThomasGerstenberg]

What are the IO capabilities reported of the peripheral device? Could you post debug logs of the connection?
Easiest way to enable logs is by adding

from blatann.utils import setup_logger
setup_logger("blatann", level="DEBUG")

at the top of your main file

Also refer to this matrix for the various IO capabilities and their pairing methods: