How to get connected device mac address ?

RE: How to get connected device mac address ?

Devanshi1510 — Fri, 29 Mar 2019 05:42:08 GMT

hey I tried your code snippet am getting error while executing mrprintf function : So ,

I get this error and when I try to define UART with 48 bits it gives 2nd and 3rd error.

1. 'UART' undeclared (first use in this function)

2.Output/ble_app_uart_pca10056_s140 Release/Obj/main.o: In function `ble_evt_handler':

3. undefined reference to `mprintf'

i am quite new to this, so any guidance would be helpful.

RE: How to get connected device mac address ?

Petter Myhre — Mon, 10 Oct 2016 14:03:13 GMT

If I answered your questions, please accept my answer by clicking the check mark next to it. Thanks.

RE: How to get connected device mac address ?

manymany — Fri, 07 Oct 2016 20:12:29 GMT

I found this information:

There are 4 types of addresses defined for BLE:

Public IEEE Format– Manufacturer specific IEEE Bluetooth address and company identifiers can be purchased through the IEEE Registration Authority.

Random Static– Burned into radio silicon upon shipment or can be randomly generated to a new value at each power cycle.

Random Private Resolvable– Used in bonded devices and requires the Identity Resolving Key (IRK) be shared during Phase 3 of the pairing procedure. This changes periodically based on a timer or other method. This is the default use case for iOS devices and for Android devices with Lollipop or newer.

Random Private Non-Resolvable– Shared between bonded devices for use during reconnection. This changes with each connection.

RE: How to get connected device mac address ?

manymany — Fri, 07 Oct 2016 20:10:38 GMT

Hi Petter, Thanks for your answer. Do you have a link to a simple documentation about this concept. (The link in your answer don't work).

RE: How to get connected device mac address ?

Petter Myhre — Fri, 07 Oct 2016 09:39:29 GMT

As Alex mentioned 0x02 means that the peer is using the private resolvable address type, this address is not static it will change. More information here.

Edit: Fixed link.

RE: How to get connected device mac address ?

Alex — Fri, 07 Oct 2016 08:52:04 GMT

What is addr_type? if it is Private Resolvable address 0x02 then your device was bonded and address can be resolved using IRK (but I don't know how :) )

RE: How to get connected device mac address ?

Petter Myhre — Fri, 07 Oct 2016 07:43:36 GMT

What value do you get?