NRF52 DK BLE Mac address is weird, how to reset to normal?

[Joe F.]

Hello,

bt_le_oob_get_local() and bt_id_get() both get the same mac address as I see on the nRF connect scanner app, which is F7:54:FF:FF:FF:FF. I was wondering if I accidentally erased it somehow, and there's a way to reset this mac address to the original.

Thanks,

[Simonr]

Hi Joe

The nRF52 won't come with a "preprogrammed" MAC address, and you need to flash it onto the board if you don't want to use CONFIG_BT_PRIVACY to generate the address for you. Since it's not set, you can write BT_ID_DEFAULT to be whatever you'd like and it should be set up. I'm sorry, if I'm misunderstanding, but I don't really see the problem here.

Best regards,

Simon

[Joe F.]

Hi Simon,

Okay that makes sense now. Having a unique static address that's readable from the get-go is valuable to me because it's a really easy way to allow the app-side to identify the device. I can randomize BT_ID_DEFAULT and store it in NVS.

Thanks!

EDIT: Sorry, could you please clarify, is this a nRF52 DK behaviour, or a nRF52832 in general behaviour?