How to get MAC address of mobile which trying to connect

[shafi]

I am using nrf52840 dev kit to connect to nrf connect app on my  android phone. I using ble_app_uart example to fetch Mobile mac ID when event BLE_GAP_EVT_CONNECTED is triggered. 

But log prints "addr of app 0xB4 0x5B 0x29 0x70 0x1 0x18" which isn't matching with mobile mac ID which is e8:b5:2b:77:dc:16. Can you help me understand what am doing wrong to fetch the mobile MAC ID.

[Turbo J]

Your are using the wrong field from the uinion. Use the fields in the "connected" part.

[shafi]

Hi Turbo,

Thank you for your quick response.

Tried using peer addr in connected part but the output still doesn't match. 

It prints "addr of app  0x84 0x39 0x87 0x46 0x89 0x44" and  the prints aren't same whenever the nrf dev kit is power cycled.

Regards,

Shafi

[Turbo J]

Is that a modern-ish phone?

Because an MSB of 0x44 looks a lot like a private resolvable address, and these randomize (IMHO every 15 minutes at least).

Modern phones use this for privacy reasons. The actual address is exchanged during the pairing/bonding procedure.

[tamojit]

Turbo J said:

Modern phones use this for privacy reasons. The actual address is exchanged during the pairing/bonding procedure.

Turbo J Can you please guide me how to get this "actual address" programatically?