RE: How do I obtain unique connectable BLE MAC address for my device ?

tesc — Fri, 19 Jul 2024 15:28:46 GMT

Hi,

By default you will get a random static address. This address is fixed throughout the lifetime of the device, and technically it is fetched from the DEVICEADDR registers in FICR.

The main exception to this is if you set CONFIG_BT_PRIVACY, which will change the address type to a resolvable random private address instead.

Please note that a static address is not necessarily wanted, due to privacy reasons. If you have a fixed peer which will reconnect to your device, then resolvable random private addresses may actually be a better option. After establishing a bond on the first connection, the peer will then be able to recognize and reconnect to your device, even if it uses resolvable random private addresses, since with the bonding data your peer will be able to resolve the address.

For more information on addresses, see e.g. Bluetooth address.

Regards,
Terje

RE: How do I obtain unique connectable BLE MAC address for my device ?

Alex_S@Aperia — Mon, 15 Jul 2024 12:29:10 GMT

I suspect this BLE_ADDR_LE_RANDOM is static, in that it uniquely identifies each Nordic chip and is not going to change
which is all I need,
I would like to confirm it though