sudo btmon Bluetooth monitor ver 5.53 = Note: Linux version 5.8.0-53-generic (x86_64) 0.193423 = Note: Bluetooth subsystem version 2.22 0.193431 = New Index: 7C:76:35:FB:E3:BA (Primary,USB,hci0) [hci0] 0.193434 = Open Index: 7C:76:35:FB:E3:BA [hci0] 0.193435 = Index Info: 7C:76:35:FB:E3:BA (Intel Corp.) [hci0] 0.193436 @ MGMT Open: btmgmt (privileged) version 1.17 {0x0003} 0.193439 @ MGMT Open: bluetoothd (privileged) version 1.17 {0x0001} 0.193441 @ RAW Open: heartrate-serve (privileged) version 2.22 {0x0004} 0.193444 @ MGMT Open: btmon (privileged) version 1.17 {0x0002} 0.193447 @ MGMT Open: btmon (privileged) version 1.17 {0x0005} 0.193504 @ MGMT Command: Read Controller Index List (0x0003) plen 0 {0x0003} 3.803748 @ MGMT Event: Command Complete (0x0001) plen 7 {0x0003} 3.803797 Read Controller Index List (0x0003) plen 4 Status: Success (0x00) Controllers: 1 hci0 @ MGMT Command: Read Controller Information (0x0004) plen 0 {0x0003} [hci0] 3.804240 @ MGMT Event: Command Complete (0x0001) plen 283 {0x0003} [hci0] 3.804269 Read Controller Information (0x0004) plen 280 Status: Success (0x00) Address: 7C:76:35:FB:E3:BA (Intel Corporate) Version: Bluetooth 4.2 (0x08) Manufacturer: Intel Corp. (2) Supported settings: 0x0003feff Powered Connectable Fast Connectable Discoverable Bondable Link Security Secure Simple Pairing BR/EDR Low Energy Advertising Secure Connections Debug Keys Privacy Controller Configuration Static Address PHY Configuration Unknown settings (0x00020000) Current settings: 0x00002a1b Powered Connectable Discoverable Bondable Low Energy Secure Connections Privacy Class: 0x000000 Major class: Miscellaneous Minor class: 0x00 Name: michal-Latitude-7480 Short name: @ MGMT Command: Read Controller Configuration Information (0x0037) plen 0 {0x0003} [hci0] 3.805705 @ MGMT Event: Command Complete (0x0001) plen 13 {0x0003} [hci0] 3.805736 Read Controller Configuration Information (0x0037) plen 10 Status: Success (0x00) Manufacturer: Intel Corp. (2) Supported options: 0x00000002 Bluetooth public address configuration Missing options: 0x00000000 @ RAW Open: heartrate-serve (privileged) version 2.22 {0x0006} 7.655581 @ RAW Close: heartrate-serve {0x0006} 7.655621 @ RAW Open: heartrate-serve (privileged) version 2.22 {0x0006} [hci0] 7.655622 < HCI Command: LE Read Advertising Channel TX Power (0x08|0x0007) plen 0 #1 [hci0] 7.655910 > HCI Event: Command Complete (0x0e) plen 5 #2 [hci0] 7.776252 LE Read Advertising Channel TX Power (0x08|0x0007) ncmd 1 Status: Success (0x00) TX power: 7 dbm (0x07) < HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1 #3 [hci0] 7.776849 Advertising: Disabled (0x00) > HCI Event: Command Complete (0x0e) plen 4 #4 [hci0] 7.778206 LE Set Advertise Enable (0x08|0x000a) ncmd 2 Status: Success (0x00) < HCI Command: LE Set Advertising Parameters (0x08|0x0006) plen 15 #5 [hci0] 7.778670 Min advertising interval: 1280.000 msec (0x0800) Max advertising interval: 1280.000 msec (0x0800) Type: Connectable undirected - ADV_IND (0x00) Own address type: Public (0x00) Direct address type: Public (0x00) Direct address: 00:00:00:00:00:00 (OUI 00-00-00) Channel map: 37, 38, 39 (0x07) Filter policy: Allow Scan Request from Any, Allow Connect Request from Any (0x00) > HCI Event: Command Complete (0x0e) plen 4 #6 [hci0] 7.779205 LE Set Advertising Parameters (0x08|0x0006) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Advertising Data (0x08|0x0008) plen 32 #7 [hci0] 7.779445 Length: 27 TX power: 7 dBm Flags: 0x06 LE General Discoverable Mode BR/EDR Not Supported Name (complete): HeartRateServer 16-bit Service UUIDs (complete): 1 entry Heart Rate (0x180d) > HCI Event: Command Complete (0x0e) plen 4 #8 [hci0] 7.780191 LE Set Advertising Data (0x08|0x0008) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Scan Response Data (0x08|0x0009) plen 32 #9 [hci0] 7.780430 Length: 24 TX power: 7 dBm Name (complete): HeartRateServer 16-bit Service UUIDs (complete): 1 entry Heart Rate (0x180d) > HCI Event: Command Complete (0x0e) plen 4 #10 [hci0] 7.781289 LE Set Scan Response Data (0x08|0x0009) ncmd 1 Status: Success (0x00) < HCI Command: LE Set Advertise Enable (0x08|0x000a) plen 1 #11 [hci0] 7.781543 Advertising: Enabled (0x01) > HCI Event: Command Complete (0x0e) plen 4 #12 [hci0] 7.783234 LE Set Advertise Enable (0x08|0x000a) ncmd 2 Status: Success (0x00) @ RAW Close: heartrate-serve {0x0006} [hci0] 25.547965