Detect mobile phone's MAC address

Hi Daniel,

There is some ambiguity in your question in this post and the one linked above. So, I will break the answer down in 2 parts : BT classic and BLE.

1. BT classic : As long as the phone (BT classic setting) is discoverable, the CC256x will be able to see it's BD Address by performing an inquiry. This BT classic BD ADDR of the phone typically never changes.

2. BLE : The terminology is slightly different for BLE. As long as the BLE on the phone is advertising, the CC256x will be able to see it's BLE ADDR is a BLE scan. This BLE ADDR can be

- Public : Same address every-time. May or maynot be the same as the phone's BT classic BD_ADDR.

or

- Private : Like the resolvable random address. It changes every-time and only the device with the correct LTK can resolve it in order to connect to the phone over BLE.

Hope this answers your question about the BT and BLE inquiry/scan. Please refer to the Bluetooth Core Spec document (link) for technical details on how all of the aforementioned terms work.

Best regards,

Vihang