Unable to discover service

Hi,

I'm using SDK5 17.1.0 and SD132 v7.3.0. At the moment I'm developing a central device which scans for a peripheral. I did this a few times before with other devices and never had a problem with it. But now, the central is unable to discover the services of the peripheral. In my db discovery event handler I always get the event IDs for BLE_DB_DISCOVERY_SRV_NOT_FOUND and BLE_DB_DISCOVERY_AVAILABLE. I double checked the custom UUID of the service and it's correct. If I use nrf connect on my mobile phone the discovery is completed without any error. 

My service definition looks like this: 

#define DNC_C_BASE_UUID             {0x48, 0x62, 0x6d, 0x47, 0x20, 0x65, 0x63, 0x6e, 0x61, 0x44, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00} 
#define BLE_UUID_DNC_C_SERVICE      0x1000  // UUID of DNC Client Service

and the service I'm looking for looks like this in nrf connect: UUID: 00001000-2020-4461-6e63-6520476d6248

I found this post, but I'm using the peer manager and I also handled this event. By the way, if I change the UUID and advertising search pattern to another device with a different service, I can find it without problems. At the moment I have no idea what I'm missing. Is there a way in the SDK to see all available services of my device instead of searching for a specific UUID?

Best regards,

Christian

Parents
  • You would need to sd_ble_uuid_vs_add() the new UUID in order to be able to discover that service from softdevice. May require linker script changes (RAM_START) in order to make more space available for the SD.

    But I strongly recommend ditching SDK17.x.y in order to use the newer NRF connect SDK.

  • Thanks for the hint, but the base UUID is already added with sd_ble_uuid_vs_add().

  • Hi Kenneth, 

    sorry for the late reply. As requested, I created some sniffer logs while discovering the services. I did four different things:

    1. Connect with nrf connect Android app to the HMI and start a service discovery - connect_with_nrf_connect_app.txt

    2. Connect HMI with the nrf52832 and start service discovery for the custom service - 

    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8298 11.362   ed:67:3b:72:25:93     LE 1M      LE LL    27         150589µs                                                      0             ADV_IND
    
    Frame 8298: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.521586000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.521586000 UTC
        Epoch Arrival Time: 1731418568.521586000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.150885000 seconds]
        [Time delta from previous displayed frame: 0.150885000 seconds]
        [Time since reference or first frame: 11.362390000 seconds]
        Frame Number: 8298
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14529
            Length of payload: 46
            Protocol version: 3
            Packet counter: 14529
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -50 dBm
        Event counter: 0
        Timestamp: 1277309880µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 150589µs]
        [Delta time (start to start): 150885µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8299 11.363   ed:67:3b:72:25:93     LE 1M      LE LL    27         691µs                                                         0             ADV_IND
    
    Frame 8299: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.522573000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.522573000 UTC
        Epoch Arrival Time: 1731418568.522573000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000987000 seconds]
        [Time delta from previous displayed frame: 0.000987000 seconds]
        [Time since reference or first frame: 11.363377000 seconds]
        Frame Number: 8299
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14530
            Length of payload: 46
            Protocol version: 3
            Packet counter: 14530
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -50 dBm
        Event counter: 0
        Timestamp: 1277310867µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 691µs]
        [Delta time (start to start): 987µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8300 11.363   d2:d6:a3:4a:d9:08     LE 1M      LE LL    12         150µs                                                         0             SCAN_REQ
    
    Frame 8300: 38 bytes on wire (304 bits), 38 bytes captured (304 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.523019000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.523019000 UTC
        Epoch Arrival Time: 1731418568.523019000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000446000 seconds]
        [Time delta from previous displayed frame: 0.000446000 seconds]
        [Time since reference or first frame: 11.363823000 seconds]
        Frame Number: 8300
        Frame Length: 38 bytes (304 bits)
        Capture Length: 38 bytes (304 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14531
            Length of payload: 31
            Protocol version: 3
            Packet counter: 14531
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -53 dBm
        Event counter: 0
        Timestamp: 1277311313µs
        [Packet time (start to end): 176µs]
        [Delta time (end to start): 150µs]
        [Delta time (start to start): 446µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x0c43 (PDU Type: SCAN_REQ, TxAdd: Random, RxAdd: Public)
            .... 0011 = PDU Type: 0x3 SCAN_REQ
            ...0 .... = Reserved: 0
            ..0. .... = Reserved: 0
            .1.. .... = Tx Address: Random
            0... .... = Rx Address: Public
            Length: 12
        Scanning Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        CRC: 0x21ca73
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8301 11.364   ed:67:3b:72:25:93     LE 1M      LE LL    33         150µs                                                         0             SCAN_RSP
    
    Frame 8301: 59 bytes on wire (472 bits), 59 bytes captured (472 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.523345000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.523345000 UTC
        Epoch Arrival Time: 1731418568.523345000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000326000 seconds]
        [Time delta from previous displayed frame: 0.000326000 seconds]
        [Time since reference or first frame: 11.364149000 seconds]
        Frame Number: 8301
        Frame Length: 59 bytes (472 bits)
        Capture Length: 59 bytes (472 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14532
            Length of payload: 52
            Protocol version: 3
            Packet counter: 14532
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -50 dBm
        Event counter: 0
        Timestamp: 1277311639µs
        [Packet time (start to end): 344µs]
        [Delta time (end to start): 150µs]
        [Delta time (start to start): 326µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x2144 (PDU Type: SCAN_RSP, TxAdd: Random)
            .... 0100 = PDU Type: 0x4 SCAN_RSP
            ...0 .... = Reserved: 0
            ..0. .... = Reserved: 0
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 33
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Scan Response Data: 110944414e43452d32333436303238380000000000000000000000
            Advertising Data
                Device Name: DANCE-23460288\000\000
                    Length: 17
                    Type: Device Name (0x09)
                    Device Name: DANCE-23460288
                Unused
        CRC: 0x6d6975
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8302 11.365   ed:67:3b:72:25:93     LE 1M      LE LL    27         679µs                                                         0             ADV_IND
    
    Frame 8302: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.524368000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.524368000 UTC
        Epoch Arrival Time: 1731418568.524368000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.001023000 seconds]
        [Time delta from previous displayed frame: 0.001023000 seconds]
        [Time since reference or first frame: 11.365172000 seconds]
        Frame Number: 8302
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14533
            Length of payload: 46
            Protocol version: 3
            Packet counter: 14533
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 39
        RSSI: -56 dBm
        Event counter: 0
        Timestamp: 1277312662µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 679µs]
        [Delta time (start to start): 1023µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8303 11.516   ed:67:3b:72:25:93     LE 1M      LE LL    27         150589µs                                                      0             ADV_IND
    
    Frame 8303: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.675253000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.675253000 UTC
        Epoch Arrival Time: 1731418568.675253000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.150885000 seconds]
        [Time delta from previous displayed frame: 0.150885000 seconds]
        [Time since reference or first frame: 11.516057000 seconds]
        Frame Number: 8303
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14534
            Length of payload: 46
            Protocol version: 3
            Packet counter: 14534
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -50 dBm
        Event counter: 0
        Timestamp: 1277463547µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 150589µs]
        [Delta time (start to start): 150885µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8304 11.516   d2:d6:a3:4a:d9:08     LE 1M      LE LL    34         150µs                                                         0             CONNECT_IND
    
    Frame 8304: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.675699000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.675699000 UTC
        Epoch Arrival Time: 1731418568.675699000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000446000 seconds]
        [Time delta from previous displayed frame: 0.000446000 seconds]
        [Time since reference or first frame: 11.516503000 seconds]
        Frame Number: 8304
        Frame Length: 60 bytes (480 bits)
        Capture Length: 60 bytes (480 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14535
            Length of payload: 53
            Protocol version: 3
            Packet counter: 14535
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -33 dBm
        Event counter: 0
        Timestamp: 1277463993µs
        [Packet time (start to end): 352µs]
        [Delta time (end to start): 150µs]
        [Delta time (start to start): 446µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x2245 (PDU Type: CONNECT_IND, ChSel: #1, TxAdd: Random, RxAdd: Public)
            .... 0101 = PDU Type: 0x5 CONNECT_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Rx Address: Public
            Length: 34
        Initiator Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Link Layer Data
            Access Address: 0xbae3e19d
            CRC Init: 0xdcdf6a
            Window Size: 5 (6,25 msec)
            Window Offset: 0 (0 msec)
            Interval: 24 (30 msec)
            Latency: 0
            Timeout: 50 (500 msec)
            Channel Map: 1fff000000
                .... ...1 = RF Channel 1 (2404 MHz - Data - 0): True
                .... ..1. = RF Channel 2 (2406 MHz - Data - 1): True
                .... .1.. = RF Channel 3 (2408 MHz - Data - 2): True
                .... 1... = RF Channel 4 (2410 MHz - Data - 3): True
                ...1 .... = RF Channel 5 (2412 MHz - Data - 4): True
                ..0. .... = RF Channel 6 (2414 MHz - Data - 5): False
                .0.. .... = RF Channel 7 (2416 MHz - Data - 6): False
                0... .... = RF Channel 8 (2418 MHz - Data - 7): False
                .... ...1 = RF Channel 9 (2420 MHz - Data - 8): True
                .... ..1. = RF Channel 10 (2422 MHz - Data - 9): True
                .... .1.. = RF Channel 11 (2424 MHz - Data - 10): True
                .... 1... = RF Channel 13 (2428 MHz - Data - 11): True
                ...1 .... = RF Channel 14 (2430 MHz - Data - 12): True
                ..1. .... = RF Channel 15 (2432 MHz - Data - 13): True
                .1.. .... = RF Channel 16 (2434 MHz - Data - 14): True
                1... .... = RF Channel 17 (2436 MHz - Data - 15): True
                .... ...0 = RF Channel 18 (2438 MHz - Data - 16): False
                .... ..0. = RF Channel 19 (2440 MHz - Data - 17): False
                .... .0.. = RF Channel 20 (2442 MHz - Data - 18): False
                .... 0... = RF Channel 21 (2444 MHz - Data - 19): False
                ...0 .... = RF Channel 22 (2446 MHz - Data - 20): False
                ..0. .... = RF Channel 23 (2448 MHz - Data - 21): False
                .0.. .... = RF Channel 24 (2450 MHz - Data - 22): False
                0... .... = RF Channel 25 (2452 MHz - Data - 23): False
                .... ...0 = RF Channel 26 (2454 MHz - Data - 24): False
                .... ..0. = RF Channel 27 (2456 MHz - Data - 25): False
                .... .0.. = RF Channel 28 (2458 MHz - Data - 26): False
                .... 0... = RF Channel 29 (2460 MHz - Data - 27): False
                ...0 .... = RF Channel 30 (2462 MHz - Data - 28): False
                ..0. .... = RF Channel 31 (2464 MHz - Data - 29): False
                .0.. .... = RF Channel 32 (2466 MHz - Data - 30): False
                0... .... = RF Channel 33 (2468 MHz - Data - 31): False
                .... ...0 = RF Channel 34 (2470 MHz - Data - 32): False
                .... ..0. = RF Channel 35 (2472 MHz - Data - 33): False
                .... .0.. = RF Channel 36 (2474 MHz - Data - 34): False
                .... 0... = RF Channel 37 (2476 MHz - Data - 35): False
                ...0 .... = RF Channel 38 (2478 MHz - Data - 36): False
                ..0. .... = Reserved: False
                .0.. .... = Reserved: False
                0... .... = Reserved: False
            ...0 0000 = Hop: 0
            000. .... = Sleep Clock Accuracy: 251 ppm to 500 ppm (0)
        CRC: 0x878890
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8305 11.518   Central_0xbae3e19d    LE 1M      ATT      27         1253µs                       0          0          False      0             Sent Find By Type Value Request, Primary Service, Handles: 0x0001..0xffff
    
    Frame 8305: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.677304000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.677304000 UTC
        Epoch Arrival Time: 1731418568.677304000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.001605000 seconds]
        [Time delta from previous displayed frame: 0.001605000 seconds]
        [Time since reference or first frame: 11.518108000 seconds]
        Frame Number: 8305
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btl2cap:btatt]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14536
            Length of payload: 46
            Protocol version: 3
            Packet counter: 14536
            Packet ID: 6
        Length of packet: 10
        Flags: 0x03
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 0... = MIC (not relevant): 0
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 16
        RSSI: -34 dBm
        Event counter: 0
        Timestamp: 1277465598µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 1253µs]
        [Delta time (start to start): 1605µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..10 = LLID: Start of an L2CAP message or a complete L2CAP message with no fragmentation (0x2)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 27
        [L2CAP Index: 0]
        [Connection Parameters in: 8304]
        CRC: 0x7e564c
    Bluetooth L2CAP Protocol
        Length: 23
        CID: Attribute Protocol (0x0004)
    Bluetooth Attribute Protocol
        Opcode: Find By Type Value Request (0x06)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0110 = Method: Find By Type Value Request (0x06)
        Starting Handle: 0x0001
        Ending Handle: 0xffff
        UUID: Primary Service (0x2800)
        Value: 48626d472065636e6144202000100000
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8306 11.548   Central_0xbae3e19d    LE 1M      ATT      27         29709µs                      0          0          False      1             Sent Find By Type Value Request, Primary Service, Handles: 0x0001..0xffff
    
    Frame 8306: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.707309000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.707309000 UTC
        Epoch Arrival Time: 1731418568.707309000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.030005000 seconds]
        [Time delta from previous displayed frame: 0.030005000 seconds]
        [Time since reference or first frame: 11.548113000 seconds]
        Frame Number: 8306
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btl2cap:btatt]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14537
            Length of payload: 46
            Protocol version: 3
            Packet counter: 14537
            Packet ID: 6
        Length of packet: 10
        Flags: 0x03
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 0... = MIC (not relevant): 0
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 32
        RSSI: -41 dBm
        Event counter: 1
        Timestamp: 1277495603µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 29709µs]
        [Delta time (start to start): 30005µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..10 = LLID: Start of an L2CAP message or a complete L2CAP message with no fragmentation (0x2)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 0... = Sequence Number: 0 [Retransmit]
                [Expert Info (Note/Sequence): Retransmission]
                    [Retransmission]
                    [Severity level: Note]
                    [Group: Sequence]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 27
        [L2CAP Index: 1]
        [Connection Parameters in: 8304]
        CRC: 0x7e564c
    Bluetooth L2CAP Protocol
        Length: 23
        CID: Attribute Protocol (0x0004)
    Bluetooth Attribute Protocol
        Opcode: Find By Type Value Request (0x06)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0110 = Method: Find By Type Value Request (0x06)
        Starting Handle: 0x0001
        Ending Handle: 0xffff
        UUID: Primary Service (0x2800)
        Value: 48626d472065636e6144202000100000
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8307 11.548   Peripheral_0xbae3e19d LE 1M      LE LL    0          152µs                        0          1          False      1             Empty PDU
    
    Frame 8307: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.707757000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.707757000 UTC
        Epoch Arrival Time: 1731418568.707757000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000448000 seconds]
        [Time delta from previous displayed frame: 0.000448000 seconds]
        [Time since reference or first frame: 11.548561000 seconds]
        Frame Number: 8307
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14538
            Length of payload: 19
            Protocol version: 3
            Packet counter: 14538
            Packet ID: 6
        Length of packet: 10
        Flags: 0x09
            .... ...1 = CRC: Ok
            .... ..0. = Direction: Peripheral -> Central
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 32
        RSSI: -53 dBm
        Event counter: 1
        Timestamp: 1277496051µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 152µs]
        [Delta time (start to start): 448µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 8304]
        CRC: 0x7b5df2
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8308 11.578   Central_0xbae3e19d    LE 1M      LE LL    0          29476µs                      1          1          False      2             Empty PDU
    
    Frame 8308: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.737313000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.737313000 UTC
        Epoch Arrival Time: 1731418568.737313000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.029556000 seconds]
        [Time delta from previous displayed frame: 0.029556000 seconds]
        [Time since reference or first frame: 11.578117000 seconds]
        Frame Number: 8308
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14539
            Length of payload: 19
            Protocol version: 3
            Packet counter: 14539
            Packet ID: 6
        Length of packet: 10
        Flags: 0x0b
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 11
        RSSI: -33 dBm
        Event counter: 2
        Timestamp: 1277525607µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 29476µs]
        [Delta time (start to start): 29556µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 1... = Sequence Number: 1 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 8304]
        CRC: 0x1eedf2
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8309 11.578   Peripheral_0xbae3e19d LE 1M      ATT      9          151µs                        1          0          False      2             Rcvd Error Response - Attribute Not Found, Handle: 0x0001 (Unknown)
    
    Frame 8309: 35 bytes on wire (280 bits), 35 bytes captured (280 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.737544000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.737544000 UTC
        Epoch Arrival Time: 1731418568.737544000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000231000 seconds]
        [Time delta from previous displayed frame: 0.000231000 seconds]
        [Time since reference or first frame: 11.578348000 seconds]
        Frame Number: 8309
        Frame Length: 35 bytes (280 bits)
        Capture Length: 35 bytes (280 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btl2cap:btatt]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14540
            Length of payload: 28
            Protocol version: 3
            Packet counter: 14540
            Packet ID: 6
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Direction: Peripheral -> Central
            .... .0.. = Encrypted: No
            .... 0... = MIC (not relevant): 0
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 11
        RSSI: -51 dBm
        Event counter: 2
        Timestamp: 1277525838µs
        [Packet time (start to end): 152µs]
        [Delta time (end to start): 151µs]
        [Delta time (start to start): 231µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..10 = LLID: Start of an L2CAP message or a complete L2CAP message with no fragmentation (0x2)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 1... = Sequence Number: 1 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 9
        [L2CAP Index: 2]
        [Connection Parameters in: 8304]
        CRC: 0x7b7371
    Bluetooth L2CAP Protocol
        Length: 5
        CID: Attribute Protocol (0x0004)
    Bluetooth Attribute Protocol
        Opcode: Error Response (0x01)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0001 = Method: Error Response (0x01)
        Request Opcode in Error: Find By Type Value Request (0x06)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0110 = Method: Find By Type Value Request (0x06)
        Handle in Error: 0x0001 (Unknown)
        Error Code: Attribute Not Found (0x0a)
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8310 11.608   Central_0xbae3e19d    LE 1M      LE LL    0          29621µs                      0          0          False      3             Empty PDU
    
    Frame 8310: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.767317000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.767317000 UTC
        Epoch Arrival Time: 1731418568.767317000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.029773000 seconds]
        [Time delta from previous displayed frame: 0.029773000 seconds]
        [Time since reference or first frame: 11.608121000 seconds]
        Frame Number: 8310
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14541
            Length of payload: 19
            Protocol version: 3
            Packet counter: 14541
            Packet ID: 6
        Length of packet: 10
        Flags: 0x0b
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 27
        RSSI: -32 dBm
        Event counter: 3
        Timestamp: 1277555611µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 29621µs]
        [Delta time (start to start): 29773µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 8304]
        CRC: 0xb03df2
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
       8311 11.608   Peripheral_0xbae3e19d LE 1M      LE LL    0          151µs                        0          1          False      3             Empty PDU
    
    Frame 8311: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 14:36:08.767548000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 13:36:08.767548000 UTC
        Epoch Arrival Time: 1731418568.767548000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000231000 seconds]
        [Time delta from previous displayed frame: 0.000231000 seconds]
        [Time since reference or first frame: 11.608352000 seconds]
        Frame Number: 8311
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 14542
            Length of payload: 19
            Protocol version: 3
            Packet counter: 14542
            Packet ID: 6
        Length of packet: 10
        Flags: 0x09
            .... ...1 = CRC: Ok
            .... ..0. = Direction: Peripheral -> Central
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 27
        RSSI: -52 dBm
        Event counter: 3
        Timestamp: 1277555842µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 151µs]
        [Delta time (start to start): 231µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0xbae3e19d
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 8304]
        CRC: 0x7b5df2
    

    3. Connect HMI with the nrf52832 and start service discovery for service 0x1800 - 

    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19624 170.122  ed:67:3b:72:25:93     LE 1M      LE LL    27         150603µs                                                      0             ADV_IND
    
    Frame 19624: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.676555000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.676555000 UTC
        Epoch Arrival Time: 1731414740.676555000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.150899000 seconds]
        [Time delta from previous displayed frame: 0.150899000 seconds]
        [Time since reference or first frame: 170.122453000 seconds]
        Frame Number: 19624
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59439
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59439
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -58 dBm
        Event counter: 0
        Timestamp: 1745333675µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 150603µs]
        [Delta time (start to start): 150899µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19625 170.123  ed:67:3b:72:25:93     LE 1M      LE LL    27         690µs                                                         0             ADV_IND
    
    Frame 19625: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.677541000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.677541000 UTC
        Epoch Arrival Time: 1731414740.677541000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000986000 seconds]
        [Time delta from previous displayed frame: 0.000986000 seconds]
        [Time since reference or first frame: 170.123439000 seconds]
        Frame Number: 19625
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59440
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59440
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -63 dBm
        Event counter: 0
        Timestamp: 1745334661µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 690µs]
        [Delta time (start to start): 986µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19626 170.124  ed:67:3b:72:25:93     LE 1M      LE LL    27         689µs                                                         0             ADV_IND
    
    Frame 19626: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.678526000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.678526000 UTC
        Epoch Arrival Time: 1731414740.678526000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000985000 seconds]
        [Time delta from previous displayed frame: 0.000985000 seconds]
        [Time since reference or first frame: 170.124424000 seconds]
        Frame Number: 19626
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59441
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59441
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 39
        RSSI: -67 dBm
        Event counter: 0
        Timestamp: 1745335646µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 689µs]
        [Delta time (start to start): 985µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19627 170.275  ed:67:3b:72:25:93     LE 1M      LE LL    27         150603µs                                                      0             ADV_IND
    
    Frame 19627: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.829425000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.829425000 UTC
        Epoch Arrival Time: 1731414740.829425000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.150899000 seconds]
        [Time delta from previous displayed frame: 0.150899000 seconds]
        [Time since reference or first frame: 170.275323000 seconds]
        Frame Number: 19627
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59442
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59442
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -59 dBm
        Event counter: 0
        Timestamp: 1745486545µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 150603µs]
        [Delta time (start to start): 150899µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19628 170.276  ed:67:3b:72:25:93     LE 1M      LE LL    27         690µs                                                         0             ADV_IND
    
    Frame 19628: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.830411000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.830411000 UTC
        Epoch Arrival Time: 1731414740.830411000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000986000 seconds]
        [Time delta from previous displayed frame: 0.000986000 seconds]
        [Time since reference or first frame: 170.276309000 seconds]
        Frame Number: 19628
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59443
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59443
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -63 dBm
        Event counter: 0
        Timestamp: 1745487531µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 690µs]
        [Delta time (start to start): 986µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19629 170.276  d2:d6:a3:4a:d9:08     LE 1M      LE LL    12         151µs                                                         0             SCAN_REQ
    
    Frame 19629: 38 bytes on wire (304 bits), 38 bytes captured (304 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.830858000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.830858000 UTC
        Epoch Arrival Time: 1731414740.830858000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000447000 seconds]
        [Time delta from previous displayed frame: 0.000447000 seconds]
        [Time since reference or first frame: 170.276756000 seconds]
        Frame Number: 19629
        Frame Length: 38 bytes (304 bits)
        Capture Length: 38 bytes (304 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59444
            Length of payload: 31
            Protocol version: 3
            Packet counter: 59444
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -51 dBm
        Event counter: 0
        Timestamp: 1745487978µs
        [Packet time (start to end): 176µs]
        [Delta time (end to start): 151µs]
        [Delta time (start to start): 447µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x0c43 (PDU Type: SCAN_REQ, TxAdd: Random, RxAdd: Public)
            .... 0011 = PDU Type: 0x3 SCAN_REQ
            ...0 .... = Reserved: 0
            ..0. .... = Reserved: 0
            .1.. .... = Tx Address: Random
            0... .... = Rx Address: Public
            Length: 12
        Scanning Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        CRC: 0x21ca73
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19630 170.277  ed:67:3b:72:25:93     LE 1M      LE LL    33         150µs                                                         0             SCAN_RSP
    
    Frame 19630: 59 bytes on wire (472 bits), 59 bytes captured (472 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.831184000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.831184000 UTC
        Epoch Arrival Time: 1731414740.831184000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000326000 seconds]
        [Time delta from previous displayed frame: 0.000326000 seconds]
        [Time since reference or first frame: 170.277082000 seconds]
        Frame Number: 19630
        Frame Length: 59 bytes (472 bits)
        Capture Length: 59 bytes (472 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59445
            Length of payload: 52
            Protocol version: 3
            Packet counter: 59445
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 38
        RSSI: -63 dBm
        Event counter: 0
        Timestamp: 1745488304µs
        [Packet time (start to end): 344µs]
        [Delta time (end to start): 150µs]
        [Delta time (start to start): 326µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x2144 (PDU Type: SCAN_RSP, TxAdd: Random)
            .... 0100 = PDU Type: 0x4 SCAN_RSP
            ...0 .... = Reserved: 0
            ..0. .... = Reserved: 0
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 33
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Scan Response Data: 110944414e43452d32333436303238380000000000000000000000
            Advertising Data
                Device Name: DANCE-23460288\000\000
                    Length: 17
                    Type: Device Name (0x09)
                    Device Name: DANCE-23460288
                Unused
        CRC: 0x6d6975
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19631 170.278  ed:67:3b:72:25:93     LE 1M      LE LL    27         692µs                                                         0             ADV_IND
    
    Frame 19631: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.832220000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.832220000 UTC
        Epoch Arrival Time: 1731414740.832220000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.001036000 seconds]
        [Time delta from previous displayed frame: 0.001036000 seconds]
        [Time since reference or first frame: 170.278118000 seconds]
        Frame Number: 19631
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59446
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59446
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 39
        RSSI: -67 dBm
        Event counter: 0
        Timestamp: 1745489340µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 692µs]
        [Delta time (start to start): 1036µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19632 170.429  ed:67:3b:72:25:93     LE 1M      LE LL    27         150603µs                                                      0             ADV_IND
    
    Frame 19632: 53 bytes on wire (424 bits), 53 bytes captured (424 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.983119000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.983119000 UTC
        Epoch Arrival Time: 1731414740.983119000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.150899000 seconds]
        [Time delta from previous displayed frame: 0.150899000 seconds]
        [Time since reference or first frame: 170.429017000 seconds]
        Frame Number: 19632
        Frame Length: 53 bytes (424 bits)
        Capture Length: 53 bytes (424 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59447
            Length of payload: 46
            Protocol version: 3
            Packet counter: 59447
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -58 dBm
        Event counter: 0
        Timestamp: 1745640239µs
        [Packet time (start to end): 296µs]
        [Delta time (end to start): 150603µs]
        [Delta time (start to start): 150899µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x1b40 (PDU Type: ADV_IND, ChSel: #1, TxAdd: Random)
            .... 0000 = PDU Type: 0x0 ADV_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Reserved: 0
            Length: 27
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Advertising Data
            Flags
                Length: 2
                Type: Flags (0x01)
                000. .... = Reserved: 0x0
                ...0 .... = Simultaneous LE and BR/EDR to Same Device Capable (Host): false (0x0)
                .... 0... = Simultaneous LE and BR/EDR to Same Device Capable (Controller): false (0x0)
                .... .1.. = BR/EDR Not Supported: true (0x1)
                .... ..1. = LE General Discoverable Mode: true (0x1)
                .... ...0 = LE Limited Discoverable Mode: false (0x0)
            128-bit Service Class UUIDs
                Length: 17
                Type: 128-bit Service Class UUIDs (0x07)
                Custom UUID: 00001000-2020-4461-6e63-6520476d6248 (Unknown)
        CRC: 0x7a47a3
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19633 170.429  d2:d6:a3:4a:d9:08     LE 1M      LE LL    34         151µs                                                         0             CONNECT_IND
    
    Frame 19633: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.983566000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.983566000 UTC
        Epoch Arrival Time: 1731414740.983566000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000447000 seconds]
        [Time delta from previous displayed frame: 0.000447000 seconds]
        [Time since reference or first frame: 170.429464000 seconds]
        Frame Number: 19633
        Frame Length: 60 bytes (480 bits)
        Capture Length: 60 bytes (480 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btcommon]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59448
            Length of payload: 53
            Protocol version: 3
            Packet counter: 59448
            Packet ID: 2
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Reserved: 0
            .... .0.. = Reserved: 0
            .... 0... = Address Resolved: No
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 37
        RSSI: -47 dBm
        Event counter: 0
        Timestamp: 1745640686µs
        [Packet time (start to end): 352µs]
        [Delta time (end to start): 151µs]
        [Delta time (start to start): 447µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x8e89bed6
        Packet Header: 0x2245 (PDU Type: CONNECT_IND, ChSel: #1, TxAdd: Random, RxAdd: Public)
            .... 0101 = PDU Type: 0x5 CONNECT_IND
            ...0 .... = Reserved: 0
            ..0. .... = Channel Selection Algorithm: #1
            .1.. .... = Tx Address: Random
            0... .... = Rx Address: Public
            Length: 34
        Initiator Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)
        Advertising Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)
        Link Layer Data
            Access Address: 0x32a3cbbd
            CRC Init: 0x477f6e
            Window Size: 5 (6,25 msec)
            Window Offset: 0 (0 msec)
            Interval: 24 (30 msec)
            Latency: 0
            Timeout: 50 (500 msec)
            Channel Map: 1fff000000
                .... ...1 = RF Channel 1 (2404 MHz - Data - 0): True
                .... ..1. = RF Channel 2 (2406 MHz - Data - 1): True
                .... .1.. = RF Channel 3 (2408 MHz - Data - 2): True
                .... 1... = RF Channel 4 (2410 MHz - Data - 3): True
                ...1 .... = RF Channel 5 (2412 MHz - Data - 4): True
                ..0. .... = RF Channel 6 (2414 MHz - Data - 5): False
                .0.. .... = RF Channel 7 (2416 MHz - Data - 6): False
                0... .... = RF Channel 8 (2418 MHz - Data - 7): False
                .... ...1 = RF Channel 9 (2420 MHz - Data - 8): True
                .... ..1. = RF Channel 10 (2422 MHz - Data - 9): True
                .... .1.. = RF Channel 11 (2424 MHz - Data - 10): True
                .... 1... = RF Channel 13 (2428 MHz - Data - 11): True
                ...1 .... = RF Channel 14 (2430 MHz - Data - 12): True
                ..1. .... = RF Channel 15 (2432 MHz - Data - 13): True
                .1.. .... = RF Channel 16 (2434 MHz - Data - 14): True
                1... .... = RF Channel 17 (2436 MHz - Data - 15): True
                .... ...0 = RF Channel 18 (2438 MHz - Data - 16): False
                .... ..0. = RF Channel 19 (2440 MHz - Data - 17): False
                .... .0.. = RF Channel 20 (2442 MHz - Data - 18): False
                .... 0... = RF Channel 21 (2444 MHz - Data - 19): False
                ...0 .... = RF Channel 22 (2446 MHz - Data - 20): False
                ..0. .... = RF Channel 23 (2448 MHz - Data - 21): False
                .0.. .... = RF Channel 24 (2450 MHz - Data - 22): False
                0... .... = RF Channel 25 (2452 MHz - Data - 23): False
                .... ...0 = RF Channel 26 (2454 MHz - Data - 24): False
                .... ..0. = RF Channel 27 (2456 MHz - Data - 25): False
                .... .0.. = RF Channel 28 (2458 MHz - Data - 26): False
                .... 0... = RF Channel 29 (2460 MHz - Data - 27): False
                ...0 .... = RF Channel 30 (2462 MHz - Data - 28): False
                ..0. .... = RF Channel 31 (2464 MHz - Data - 29): False
                .0.. .... = RF Channel 32 (2466 MHz - Data - 30): False
                0... .... = RF Channel 33 (2468 MHz - Data - 31): False
                .... ...0 = RF Channel 34 (2470 MHz - Data - 32): False
                .... ..0. = RF Channel 35 (2472 MHz - Data - 33): False
                .... .0.. = RF Channel 36 (2474 MHz - Data - 34): False
                .... 0... = RF Channel 37 (2476 MHz - Data - 35): False
                ...0 .... = RF Channel 38 (2478 MHz - Data - 36): False
                ..0. .... = Reserved: False
                .0.. .... = Reserved: False
                0... .... = Reserved: False
            ...0 0000 = Hop: 0
            100. .... = Sleep Clock Accuracy: 51 ppm to 75 ppm (4)
        CRC: 0x6b5632
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19634 170.431  Central_0x32a3cbbd    LE 1M      ATT      13         1249µs                       0          0          False      0             Sent Find By Type Value Request, Primary Service, Handles: 0x0001..0xffff
    
    Frame 19634: 39 bytes on wire (312 bits), 39 bytes captured (312 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:20.985167000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:20.985167000 UTC
        Epoch Arrival Time: 1731414740.985167000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.001601000 seconds]
        [Time delta from previous displayed frame: 0.001601000 seconds]
        [Time since reference or first frame: 170.431065000 seconds]
        Frame Number: 19634
        Frame Length: 39 bytes (312 bits)
        Capture Length: 39 bytes (312 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btl2cap:btatt]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59449
            Length of payload: 32
            Protocol version: 3
            Packet counter: 59449
            Packet ID: 6
        Length of packet: 10
        Flags: 0x03
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 0... = MIC (not relevant): 0
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 12
        RSSI: -50 dBm
        Event counter: 0
        Timestamp: 1745642287µs
        [Packet time (start to end): 184µs]
        [Delta time (end to start): 1249µs]
        [Delta time (start to start): 1601µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..10 = LLID: Start of an L2CAP message or a complete L2CAP message with no fragmentation (0x2)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 13
        [L2CAP Index: 43]
        [Connection Parameters in: 19633]
        CRC: 0xeb510d
    Bluetooth L2CAP Protocol
        Length: 9
        CID: Attribute Protocol (0x0004)
    Bluetooth Attribute Protocol
        Opcode: Find By Type Value Request (0x06)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0110 = Method: Find By Type Value Request (0x06)
        Starting Handle: 0x0001
        Ending Handle: 0xffff
        UUID: Primary Service (0x2800)
        Value: 0018
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19635 170.461  Central_0x32a3cbbd    LE 1M      ATT      13         29813µs                      0          0          False      1             Sent Find By Type Value Request, Primary Service, Handles: 0x0001..0xffff
    
    Frame 19635: 39 bytes on wire (312 bits), 39 bytes captured (312 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.015164000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.015164000 UTC
        Epoch Arrival Time: 1731414741.015164000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.029997000 seconds]
        [Time delta from previous displayed frame: 0.029997000 seconds]
        [Time since reference or first frame: 170.461062000 seconds]
        Frame Number: 19635
        Frame Length: 39 bytes (312 bits)
        Capture Length: 39 bytes (312 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btl2cap:btatt]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59450
            Length of payload: 32
            Protocol version: 3
            Packet counter: 59450
            Packet ID: 6
        Length of packet: 10
        Flags: 0x03
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 0... = MIC (not relevant): 0
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 24
        RSSI: -50 dBm
        Event counter: 1
        Timestamp: 1745672284µs
        [Packet time (start to end): 184µs]
        [Delta time (end to start): 29813µs]
        [Delta time (start to start): 29997µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..10 = LLID: Start of an L2CAP message or a complete L2CAP message with no fragmentation (0x2)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 0... = Sequence Number: 0 [Retransmit]
                [Expert Info (Note/Sequence): Retransmission]
                    [Retransmission]
                    [Severity level: Note]
                    [Group: Sequence]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 13
        [L2CAP Index: 44]
        [Connection Parameters in: 19633]
        CRC: 0xeb510d
    Bluetooth L2CAP Protocol
        Length: 9
        CID: Attribute Protocol (0x0004)
    Bluetooth Attribute Protocol
        Opcode: Find By Type Value Request (0x06)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0110 = Method: Find By Type Value Request (0x06)
        Starting Handle: 0x0001
        Ending Handle: 0xffff
        UUID: Primary Service (0x2800)
        Value: 0018
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19636 170.461  Peripheral_0x32a3cbbd LE 1M      LE LL    0          151µs                        0          1          False      1             Empty PDU
    
    Frame 19636: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.015499000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.015499000 UTC
        Epoch Arrival Time: 1731414741.015499000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000335000 seconds]
        [Time delta from previous displayed frame: 0.000335000 seconds]
        [Time since reference or first frame: 170.461397000 seconds]
        Frame Number: 19636
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59451
            Length of payload: 19
            Protocol version: 3
            Packet counter: 59451
            Packet ID: 6
        Length of packet: 10
        Flags: 0x09
            .... ...1 = CRC: Ok
            .... ..0. = Direction: Peripheral -> Central
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 24
        RSSI: -63 dBm
        Event counter: 1
        Timestamp: 1745672619µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 151µs]
        [Delta time (start to start): 335µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 19633]
        CRC: 0x0cb4ff
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19637 170.491  Central_0x32a3cbbd    LE 1M      LE LL    0          29583µs                      1          1          False      2             Empty PDU
    
    Frame 19637: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.045162000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.045162000 UTC
        Epoch Arrival Time: 1731414741.045162000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.029663000 seconds]
        [Time delta from previous displayed frame: 0.029663000 seconds]
        [Time since reference or first frame: 170.491060000 seconds]
        Frame Number: 19637
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59452
            Length of payload: 19
            Protocol version: 3
            Packet counter: 59452
            Packet ID: 6
        Length of packet: 10
        Flags: 0x0b
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 36
        RSSI: -51 dBm
        Event counter: 2
        Timestamp: 1745702282µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 29583µs]
        [Delta time (start to start): 29663µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 1... = Sequence Number: 1 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 19633]
        CRC: 0x6904ff
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19638 170.491  Peripheral_0x32a3cbbd LE 1M      ATT      9          152µs                        1          0          False      2             Rcvd Error Response - Attribute Not Found, Handle: 0x0001 (GAP)
    
    Frame 19638: 35 bytes on wire (280 bits), 35 bytes captured (280 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.045394000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.045394000 UTC
        Epoch Arrival Time: 1731414741.045394000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000232000 seconds]
        [Time delta from previous displayed frame: 0.000232000 seconds]
        [Time since reference or first frame: 170.491292000 seconds]
        Frame Number: 19638
        Frame Length: 35 bytes (280 bits)
        Capture Length: 35 bytes (280 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle:btl2cap:btatt]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59453
            Length of payload: 28
            Protocol version: 3
            Packet counter: 59453
            Packet ID: 6
        Length of packet: 10
        Flags: 0x01
            .... ...1 = CRC: Ok
            .... ..0. = Direction: Peripheral -> Central
            .... .0.. = Encrypted: No
            .... 0... = MIC (not relevant): 0
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 36
        RSSI: -68 dBm
        Event counter: 2
        Timestamp: 1745702514µs
        [Packet time (start to end): 152µs]
        [Delta time (end to start): 152µs]
        [Delta time (start to start): 232µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..10 = LLID: Start of an L2CAP message or a complete L2CAP message with no fragmentation (0x2)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 1... = Sequence Number: 1 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 9
        [L2CAP Index: 45]
        [Connection Parameters in: 19633]
        CRC: 0x666405
    Bluetooth L2CAP Protocol
        Length: 5
        CID: Attribute Protocol (0x0004)
    Bluetooth Attribute Protocol
        Opcode: Error Response (0x01)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0001 = Method: Error Response (0x01)
        Request Opcode in Error: Find By Type Value Request (0x06)
            0... .... = Authentication Signature: False
            .0.. .... = Command: False
            ..00 0110 = Method: Find By Type Value Request (0x06)
        Handle in Error: 0x0001 (GAP)
            [UUID: GAP (0x1800)]
        Error Code: Attribute Not Found (0x0a)
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19639 170.521  Central_0x32a3cbbd    LE 1M      LE LL    0          29615µs                      0          0          False      3             Empty PDU
    
    Frame 19639: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.075161000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.075161000 UTC
        Epoch Arrival Time: 1731414741.075161000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.029767000 seconds]
        [Time delta from previous displayed frame: 0.029767000 seconds]
        [Time since reference or first frame: 170.521059000 seconds]
        Frame Number: 19639
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59454
            Length of payload: 19
            Protocol version: 3
            Packet counter: 59454
            Packet ID: 6
        Length of packet: 10
        Flags: 0x0b
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 11
        RSSI: -48 dBm
        Event counter: 3
        Timestamp: 1745732281µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 29615µs]
        [Delta time (start to start): 29767µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .0.. = Next Expected Sequence Number: 0 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 19633]
        CRC: 0xc7d4ff
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19640 170.521  Peripheral_0x32a3cbbd LE 1M      LE LL    0          151µs                        0          1          False      3             Empty PDU
    
    Frame 19640: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.075392000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.075392000 UTC
        Epoch Arrival Time: 1731414741.075392000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.000231000 seconds]
        [Time delta from previous displayed frame: 0.000231000 seconds]
        [Time since reference or first frame: 170.521290000 seconds]
        Frame Number: 19640
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59455
            Length of payload: 19
            Protocol version: 3
            Packet counter: 59455
            Packet ID: 6
        Length of packet: 10
        Flags: 0x09
            .... ...1 = CRC: Ok
            .... ..0. = Direction: Peripheral -> Central
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 11
        RSSI: -63 dBm
        Event counter: 3
        Timestamp: 1745732512µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 151µs]
        [Delta time (start to start): 231µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 0... = Sequence Number: 0 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 19633]
        CRC: 0x0cb4ff
    
    No.     Time     Source                PHY        Protocol Length     Delta time (µs end to start) SN         NESN       More Data  Event counter Info
      19641 170.551  Central_0x32a3cbbd    LE 1M      LE LL    0          29685µs                      1          1          False      4             Empty PDU
    
    Frame 19641: 26 bytes on wire (208 bits), 26 bytes captured (208 bits) on interface COM20-4.4, id 0
        Section number: 1
        Interface id: 0 (COM20-4.4)
            Interface name: COM20-4.4
            Interface description: nRF Sniffer for Bluetooth LE COM20
        Encapsulation type: nRF Sniffer for Bluetooth LE (186)
        Arrival Time: Nov 12, 2024 13:32:21.105157000 Mitteleuropäische Zeit
        UTC Arrival Time: Nov 12, 2024 12:32:21.105157000 UTC
        Epoch Arrival Time: 1731414741.105157000
        [Time shift for this packet: 0.000000000 seconds]
        [Time delta from previous captured frame: 0.029765000 seconds]
        [Time delta from previous displayed frame: 0.029765000 seconds]
        [Time since reference or first frame: 170.551055000 seconds]
        Frame Number: 19641
        Frame Length: 26 bytes (208 bits)
        Capture Length: 26 bytes (208 bits)
        [Frame is marked: False]
        [Frame is ignored: False]
        [Protocols in frame: nordic_ble:btle]
    nRF Sniffer for Bluetooth LE
        Board: 20
        Header Version: 3, Packet counter: 59456
            Length of payload: 19
            Protocol version: 3
            Packet counter: 59456
            Packet ID: 6
        Length of packet: 10
        Flags: 0x0b
            .... ...1 = CRC: Ok
            .... ..1. = Direction: Central -> Peripheral
            .... .0.. = Encrypted: No
            .... 1... = MIC (not relevant): 1
            .000 .... = PHY: LE 1M (0)
            0... .... = Reserved: 0
        Channel Index: 23
        RSSI: -50 dBm
        Event counter: 4
        Timestamp: 1745762277µs
        [Packet time (start to end): 80µs]
        [Delta time (end to start): 29685µs]
        [Delta time (start to start): 29765µs]
    Bluetooth Low Energy Link Layer
        Access Address: 0x32a3cbbd
        [Central Address: d2:d6:a3:4a:d9:08 (d2:d6:a3:4a:d9:08)]
        [Peripheral Address: ed:67:3b:72:25:93 (ed:67:3b:72:25:93)]
        Data Header
            .... ..01 = LLID: Continuation fragment of an L2CAP message, or an Empty PDU (0x1)
            .... .1.. = Next Expected Sequence Number: 1 [ACK]
            .... 1... = Sequence Number: 1 [OK]
            ...0 .... = More Data: False
            ..0. .... = CTE Info: Not Present
            00.. .... = RFU: 0
            Length: 0
        [Connection Parameters in: 19633]
        CRC: 0x6904ff
    

    4. Connect another device with the nrf52832 and start service discovery for service 0x1800 - discovery_0x1800_success_other_device.txt

    Attempt 2 and 3 were not sucessfull. Attempt 4 found the service on the other device to proof, that the code is working. 

    I hope this helps.

    Best regards,

    Christian

  • Hello,

    Is there any way you have saved the wireshark (.pcapng) files?

    Kenneth

  • Hi Christian,

    There are a few things we want you to try.

    If possible delay the service discovery with 100ms.

    If possible bond before you do a service discovery.

    Kenneth

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