Scanned BLE addresses print on comm port

[Devanshi1510]

Hi, 

I am using nrf52840 S140 PCA10056 SDK 15.2.0 version with example ble_app_multirole_lesc_S140_PCA10056 . i am using Segger Embedded studio IDE. So now problemis i am not able to retrieve the scanned device addresses . I want to retrieve the surrounding device addresses printed on comm port. Could any one tell me which function does that ? and where do i need to change in this example.

[Jørgen Holmefjord]

Hi,

The example use the BLE scanner module with filtering, to only search for devices that match a given name, or includes the HRS UUID. To see any devices, you will have to disable filtering, by removing the following lines from scan_init():

if (strlen(m_target_periph_name) != 0)
{
    err_code = nrf_ble_scan_filter_set(&m_scan, 
                                       SCAN_NAME_FILTER, 
                                       m_target_periph_name);
    APP_ERROR_CHECK(err_code);
}

err_code = nrf_ble_scan_filter_set(&m_scan, 
                                   SCAN_UUID_FILTER, 
                                   &target_uuid);
APP_ERROR_CHECK(err_code);

err_code = nrf_ble_scan_filters_enable(&m_scan, 
                                       NRF_BLE_SCAN_NAME_FILTER | NRF_BLE_SCAN_UUID_FILTER, 
                                       false);
APP_ERROR_CHECK(err_code);

You can the add a case to print the address to the log in scan_evt_handler():

case NRF_BLE_SCAN_EVT_NOT_FOUND:
{
    NRF_LOG_INFO("Received adv from: %02x:%02x:%02x:%02x:%02x:%02x",p_scan_evt->params.p_not_found->peer_addr.addr[0],
                                                                    p_scan_evt->params.p_not_found->peer_addr.addr[1],
                                                                    p_scan_evt->params.p_not_found->peer_addr.addr[2],
                                                                    p_scan_evt->params.p_not_found->peer_addr.addr[3],
                                                                    p_scan_evt->params.p_not_found->peer_addr.addr[4],
                                                                    p_scan_evt->params.p_not_found->peer_addr.addr[5]);
} break;

Best regards,
Jørgen

[Devanshi1510]

Thanks for your valuable response, I want to know that the ble mac address which are fetched in this code snippet are peripheral or centrals? Also, my application requires to scan and fetch nearby android's BLE MAC address.  So, Kindly help me for the same.