ble adverting include mac address

RE: ble adverting include mac address

Roger Clark — Mon, 31 Jul 2017 01:31:16 GMT

iOS does not allow Apps to see the Mac address of a BLE device. iOS uses its own UUID system to identify each device, but this UUID is not unique across different iOS device.

e.g. if you run the same iOS on 2 identical iPhones, the UUID value for the same BLE device will be different on those 2 identical iPhones

If you be able to retrieve the Mac address from within an iOS app, you would need to copy the Mac address to the Manufacturer data, and add that to the advertising data.

In which case you may as well have your own serial number or UUID instead of Mac address to identify each device uniquely. Each nRF5x device has an internal 48 bit serial number you can use for this purpose (I don't know if its totally guaranteed to be unique, but I don't think Mac addresses are guaranteed to be unique either)

RE: ble adverting include mac address

Fiske — Mon, 31 Jul 2017 00:46:37 GMT

I am using IOS LightBlue and nRF Connect. Both app can not show mac address

RE: ble adverting include mac address

Roger Clark — Fri, 28 Jul 2017 22:57:49 GMT

What App are you using to view the advertising data. I thought the MAC address was always sent but most Apps don't show you the whole advertising packet

RE: ble adverting include mac address

Murugan — Fri, 28 Jul 2017 11:34:28 GMT

Hi Fiske , Try This One Adv_init.txt

RE: ble adverting include mac address

Fiske — Fri, 28 Jul 2017 11:27:57 GMT

It is based on ble_app_uart

/**@brief Function for initializing the Advertising functionality.
 */
void advertising_init(void)
{
    uint32_t               err_code;
    ble_advdata_t          advdata;
    ble_advdata_t          scanrsp;
    ble_adv_modes_config_t options;
//     uint8_t m_addl_adv_manuf_data[] = {0x08, 0xFF, 0x11, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06};

    ble_advdata_manuf_data_t   manuf_data;
    manuf_data.data.size = 6;
    manuf_data.data.p_data = MfgSpecData;
    manuf_data.company_identifier = 0xff00;
    
    // Build advertising data struct to pass into @ref ble_advertising_init.
    memset(&advdata, 0, sizeof(advdata));
    advdata.name_type          = BLE_ADVDATA_FULL_NAME;
    advdata.include_appearance = false;
 //   advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
    advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;

    memset(&scanrsp, 0, sizeof(scanrsp));
    scanrsp.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
    scanrsp.uuids_complete.p_uuids  = m_adv_uuids;

    memset(&options, 0, sizeof(options));
    options.ble_adv_fast_enabled  = true;
    options.ble_adv_fast_interval = APP_ADV_INTERVAL;
    options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;
    

    advdata.p_manuf_specific_data = &manuf_data;
    
    advdata.include_ble_device_addr = true;
    
    
 //   strcpy((char *)(scanrsp.p_manuf_specific_data->data),(const char*)MfgSpecData);
    
    err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
    APP_ERROR_CHECK(err_code);   
   /* 
    memcpy(m_addl_adv_manuf_data+4,MfgSpecData,6);
    err_code = sd_ble_gap_adv_data_set(m_addl_adv_manuf_data, sizeof(m_addl_adv_manuf_data), NULL, 0);
    APP_ERROR_CHECK(err_code);
    */
}

RE: ble adverting include mac address

Murugan — Fri, 28 Jul 2017 11:05:15 GMT

what is your application? Show me a adv_init function.

RE: ble adverting include mac address

Fiske — Fri, 28 Jul 2017 10:53:37 GMT

I am using nRF51822 with S130 softdevice