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 Reply
  • Hi, 

    I did a little bit more testing today and found out, that it's also not possible to detect other services on the device, like 0x1800 or 0x180A. If I use the same code and scan for another device which also provides the 0x1800 service, the serivces discovery succeeds. 

    Is it possible, that the connection parameter are not correct or is there anything else that can influence the service discovery?

    Best regards,

    Christian

Children
  • What can you tell me about the peripheral device you are trying to discover?

    I know there have been improvement in service discovery in nRF Connect SDK, the implementation is different and more robust, so you may need to update.

    Kenneth

  • Hi,

    switching to nrf connect SDK would be too complicated for the current task. But I tested the central_bas sample in ncs and adjusted it to the service 0x1800 of the peripheral device. The result was the same as in SDK5. The nrf wasn't able to find any service. But if I connect to another device the service is found. That's very strange and I never experienced such behaviour. 

    The target device is an HMI of an ebike and was developed by our customer. The build-in BLE chip is a Seeed Studio Wio Lite MG126. The mobile apps which are used to communicate to the HMI are working properly. Is there anything else that I can try? 

    Best regards,

    Christian

  • 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

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