Hello, I am using SDK nRF5_SDK_15.3.0_59ac345 with nrf32832 in BLE central mode and want to connect the closest peripheral device with a name prefix with "XYZ_ ". I know that exciting filter can't help me and I need to write on code. The issue is that I am not able to find scan reports which can tell me about all nearby device names and RSSI.
Can anyone please help me?
Hi Chandan,
If you want to manual filtering you can do normal scanning without filter and then catch the NRF_BLE_SCAN_EVT_NOT_FOUND event in the scan_evt_handler(). In that you can look at the param.p_not_found to see the content of the advertising packet to manually filter the advertiser.
Thanks for the reply. p_not_found has below structure but can't find device name parameter. Please suggest.
typedef struct
{
ble_gap_adv_report_type_t type; /**< Advertising report type. See @ref ble_gap_adv_report_type_t. */
ble_gap_addr_t peer_addr; /**< Bluetooth address of the peer device. If the peer_addr is resolved:
@ref ble_gap_addr_t::addr_id_peer is set to 1 and the address is the
peer's identity address. */
ble_gap_addr_t direct_addr; /**< Contains the target address of the advertising event if
@ref ble_gap_adv_report_type_t::directed is set to 1. If the
SoftDevice was able to resolve the address,
@ref ble_gap_addr_t::addr_id_peer is set to 1 and the direct_addr
contains the local identity address. If the target address of the
advertising event is @ref BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE,
and the SoftDevice was unable to resolve it, the application may try
to resolve this address to find out if the advertising event was
directed to us. */
uint8_t primary_phy; /**< Indicates the PHY on which the primary advertising packet was received.
See @ref BLE_GAP_PHYS. */
uint8_t secondary_phy; /**< Indicates the PHY on which the secondary advertising packet was received.
See @ref BLE_GAP_PHYS. This field is set to @ref BLE_GAP_PHY_NOT_SET if no packets
were received on a secondary advertising channel. */
int8_t tx_power; /**< TX Power reported by the advertiser in the last packet header received.
This field is set to @ref BLE_GAP_POWER_LEVEL_INVALID if the
last received packet did not contain the Tx Power field.
@note TX Power is only included in extended advertising packets. */
int8_t rssi; /**< Received Signal Strength Indication in dBm of the last packet received. */
uint8_t ch_index; /**< Channel Index on which the last advertising packet is received (0-39). */
uint8_t set_id; /**< Set ID of the received advertising data. Set ID is not present
if set to @ref BLE_GAP_ADV_REPORT_SET_ID_NOT_AVAILABLE. */
uint16_t data_id:12; /**< The advertising data ID of the received advertising data. Data ID
is not present if @ref ble_gap_evt_adv_report_t::set_id is set to
@ref BLE_GAP_ADV_REPORT_SET_ID_NOT_AVAILABLE. */
ble_data_t data; /**< Received advertising or scan response data. If
@ref ble_gap_adv_report_type_t::status is not set to
@ref BLE_GAP_ADV_DATA_STATUS_INCOMPLETE_MORE_DATA, the data buffer provided
in @ref sd_ble_gap_scan_start is now released. */
ble_gap_aux_pointer_t aux_pointer; /**< The offset and PHY of the next advertising packet in this extended advertising
event. @note This field is only set if @ref ble_gap_adv_report_type_t::status
is set to @ref BLE_GAP_ADV_DATA_STATUS_INCOMPLETE_MORE_DATA. */
} ble_gap_evt_adv_report_t; d
Thanks for the reply. p_not_found has below structure but can't find device name parameter. Please suggest.
typedef struct
{
ble_gap_adv_report_type_t type; /**< Advertising report type. See @ref ble_gap_adv_report_type_t. */
ble_gap_addr_t peer_addr; /**< Bluetooth address of the peer device. If the peer_addr is resolved:
@ref ble_gap_addr_t::addr_id_peer is set to 1 and the address is the
peer's identity address. */
ble_gap_addr_t direct_addr; /**< Contains the target address of the advertising event if
@ref ble_gap_adv_report_type_t::directed is set to 1. If the
SoftDevice was able to resolve the address,
@ref ble_gap_addr_t::addr_id_peer is set to 1 and the direct_addr
contains the local identity address. If the target address of the
advertising event is @ref BLE_GAP_ADDR_TYPE_RANDOM_PRIVATE_RESOLVABLE,
and the SoftDevice was unable to resolve it, the application may try
to resolve this address to find out if the advertising event was
directed to us. */
uint8_t primary_phy; /**< Indicates the PHY on which the primary advertising packet was received.
See @ref BLE_GAP_PHYS. */
uint8_t secondary_phy; /**< Indicates the PHY on which the secondary advertising packet was received.
See @ref BLE_GAP_PHYS. This field is set to @ref BLE_GAP_PHY_NOT_SET if no packets
were received on a secondary advertising channel. */
int8_t tx_power; /**< TX Power reported by the advertiser in the last packet header received.
This field is set to @ref BLE_GAP_POWER_LEVEL_INVALID if the
last received packet did not contain the Tx Power field.
@note TX Power is only included in extended advertising packets. */
int8_t rssi; /**< Received Signal Strength Indication in dBm of the last packet received. */
uint8_t ch_index; /**< Channel Index on which the last advertising packet is received (0-39). */
uint8_t set_id; /**< Set ID of the received advertising data. Set ID is not present
if set to @ref BLE_GAP_ADV_REPORT_SET_ID_NOT_AVAILABLE. */
uint16_t data_id:12; /**< The advertising data ID of the received advertising data. Data ID
is not present if @ref ble_gap_evt_adv_report_t::set_id is set to
@ref BLE_GAP_ADV_REPORT_SET_ID_NOT_AVAILABLE. */
ble_data_t data; /**< Received advertising or scan response data. If
@ref ble_gap_adv_report_type_t::status is not set to
@ref BLE_GAP_ADV_DATA_STATUS_INCOMPLETE_MORE_DATA, the data buffer provided
in @ref sd_ble_gap_scan_start is now released. */
ble_gap_aux_pointer_t aux_pointer; /**< The offset and PHY of the next advertising packet in this extended advertising
event. @note This field is only set if @ref ble_gap_adv_report_type_t::status
is set to @ref BLE_GAP_ADV_DATA_STATUS_INCOMPLETE_MORE_DATA. */
} ble_gap_evt_adv_report_t; d