Identify peripheral based on advertised data

Question

For my application I need to identify the peripheral source advertising packets are coming from. How is this best done with BLE and SDK 7.1? I would prefer not to set a a different device name for every source.

shibshab · Accepted Answer

After turning on scanning on your central device, you will receive an BLE_GAP_EVT_ADV_REPORT event for each received advertising packet. 
 This event contains the following information: 
 /**@brief Event data for advertising report event. */
typedef struct
{
 ble_gap_addr_t peer_addr; /**< Bluetooth address of the peer device. */
 int8_t rssi; /**< Received Signal Strength Indication in dBm. */
 uint8_t scan_rsp : 1; /**< If 1, the report corresponds to a scan response and the type field may be ignored. */
 uint8_t type : 2; /**< See @ref BLE_GAP_ADV_TYPES. Only valid if the scan_rsp field is 0. */
 uint8_t dlen : 5; /**< Advertising or scan response data length. */
 uint8_t data[BLE_GAP_ADV_MAX_SIZE]; /**< Advertising or scan response data. */
} ble_gap_evt_adv_report_t;
 
 The simplest way would be to use the peer_addr field. This will most likely (VERY likely if set randomly) be unique for each device, and not change on reboot (you cannot rely on this in a real life implementation however).

Identify peripheral based on advertised data

Top Replies