chakokuのブログ(rev4)

日々のごった煮ブログです

Raspberry Pi-Zero-Wでキャプチャする

以前購入したBLE用スニファの動作が安定しないので、Raspberry Pi-Zero-WでBLEパケットをキャプチャしてみる。
使うツールは tshark らしい。
hcitool を使うとBLEデバイスをスキャンしたり多少通信できるようなので、、まずはhcitoolでスキャンしてみる。

 hcitool  leinfo
30:AE:A4:CC:4D:1A BLELibTest123

ESP32上にはBLEサンプルを動かしていて、アドバタイズしているので、それを見つけたようである。

tsharkでキャプチャした状態で、hcitoolでlescanを実行、いろんなデバイスのアドバタイズが取れるのだが、ESP32のデバイスは以下のパケットだと思う。

# tshark -i 4 -V &
# hcitool lescan

Frame 5: 30 bytes on wire (240 bits), 30 bytes captured (240 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2020 17:11:16.259165000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597219876.259165000 seconds
    [Time delta from previous captured frame: 0.006040000 seconds]
    [Time delta from previous displayed frame: 0.006040000 seconds]
    [Time since reference or first frame: 0.009333000 seconds]
    Frame Number: 5
    Frame Length: 30 bytes (240 bits)
    Capture Length: 30 bytes (240 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt:btcommon]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - LE Meta
    Event Code: LE Meta (0x3e)
    Parameter Total Length: 27
    Sub Event: LE Advertising Report (0x02)
    Num Reports: 1
    Event Type: Connectable Undirected Advertising (0x00)
    Peer Address Type: Public Device Address (0x00)
    BD_ADDR: Espressi_cc:4d:1a (30:ae:a4:cc:4d:1a)
    Data Length: 15
    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)
        16-bit Service Class UUIDs
            Length: 3
            Type: 16-bit Service Class UUIDs (0x03)
            UUID 16: Battery Service (0x180f)
        16-bit Service Class UUIDs
            Length: 3
            Type: 16-bit Service Class UUIDs (0x03)
            UUID 16: Human Interface Device (0x1812)
        Appearance: Generic Heart rate Sensor
            Length: 3
            Type: Appearance (0x19)
            Appearance: Generic Heart rate Sensor (0x0340)
    RSSI: -77dBm

ラスパイについているBLEを使って送受信したパケットはキャプチャできても、他人同士で通信しているパケットは取れないようである。どうやら、(promiscuous mode としては動かせないような。。)だから、ノートPCとESP32上のBLEとの通信は、ラズパイではキャプチャできなさそうである。。うーん、道は険しい。

■メモ
BLEは一度ペアリングすると鍵情報を記憶して、次回から鍵交換を省略する(と理解)。ラスパイの場合も一度ペアリングしてしまうと次回はペアリングパケットが飛ばない(多分)。鍵情報を削除するには以下ディレクトリ配下のcacheを消す

/var/lib/bluetooth/

もしくは、bluetoothctlコマンドで一旦connectしてdisconnectする


tsharkでパケットキャプチャしながら、bluetoothctlでconnect/disconnectを行った。
その時に流れているパケット。これを読み解ければconnect(pairing?)が分かるはず

$ sudo tshark -i 4 -V
Running as user "root" and group "root". This could be dangerous.
Capturing on 'bluetooth0'
Frame 1: 11 bytes on wire (88 bits), 11 bytes captured (88 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.125666000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.125666000 seconds
    [Time delta from previous captured frame: 0.000000000 seconds]
    [Time delta from previous displayed frame: 0.000000000 seconds]
    [Time since reference or first frame: 0.000000000 seconds]
    Frame Number: 1
    Frame Length: 11 bytes (88 bits)
    Capture Length: 11 bytes (88 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Set Scan Parameters
    Command Opcode: LE Set Scan Parameters (0x200b)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1011 = Opcode Command Field: LE Set Scan Parameters (0x00b)
    Parameter Total Length: 7
    Scan Type: Passive (0x00)
    Scan Interval: 96 (60 msec)
    Scan Window: 48 (30 msec)
    Own Address Type: Public Device Address (0x00)
    Scan Filter Policy: Ignore advertisements from devices not in the white list only. Ignore directed advertisements not addressed to this device (0x01)

Frame 2: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.128856000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.128856000 seconds
    [Time delta from previous captured frame: 0.003190000 seconds]
    [Time delta from previous displayed frame: 0.003190000 seconds]
    [Time since reference or first frame: 0.003190000 seconds]
    Frame Number: 2
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Set Scan Parameters (0x200b)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1011 = Opcode Command Field: LE Set Scan Parameters (0x00b)
    Status: Success (0x00)
    [Command in frame: 1]
    [Command-Response Delta: 3.19ms]

Frame 3: 6 bytes on wire (48 bits), 6 bytes captured (48 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.129003000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.129003000 seconds
    [Time delta from previous captured frame: 0.000147000 seconds]
    [Time delta from previous displayed frame: 0.000147000 seconds]
    [Time since reference or first frame: 0.003337000 seconds]
    Frame Number: 3
    Frame Length: 6 bytes (48 bits)
    Capture Length: 6 bytes (48 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Set Scan Enable
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Parameter Total Length: 2
    Scan Enable: true (0x01)
    Filter Duplicates: true (0x01)

Frame 4: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.129894000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.129894000 seconds
    [Time delta from previous captured frame: 0.000891000 seconds]
    [Time delta from previous displayed frame: 0.000891000 seconds]
    [Time since reference or first frame: 0.004228000 seconds]
    Frame Number: 4
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Status: Success (0x00)
    [Command in frame: 3]
    [Command-Response Delta: 0.891ms]

Frame 5: 6 bytes on wire (48 bits), 6 bytes captured (48 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.130162000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.130162000 seconds
    [Time delta from previous captured frame: 0.000268000 seconds]
    [Time delta from previous displayed frame: 0.000268000 seconds]
    [Time since reference or first frame: 0.004496000 seconds]
    Frame Number: 5
    Frame Length: 6 bytes (48 bits)
    Capture Length: 6 bytes (48 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Set Scan Enable
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Parameter Total Length: 2
    Scan Enable: false (0x00)
    Filter Duplicates: false (0x00)

Frame 6: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.131151000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.131151000 seconds
    [Time delta from previous captured frame: 0.000989000 seconds]
    [Time delta from previous displayed frame: 0.000989000 seconds]
    [Time since reference or first frame: 0.005485000 seconds]
    Frame Number: 6
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Status: Success (0x00)
    [Command in frame: 5]
    [Command-Response Delta: 0.989ms]

Frame 7: 11 bytes on wire (88 bits), 11 bytes captured (88 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.131283000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.131283000 seconds
    [Time delta from previous captured frame: 0.000132000 seconds]
    [Time delta from previous displayed frame: 0.000132000 seconds]
    [Time since reference or first frame: 0.005617000 seconds]
    Frame Number: 7
    Frame Length: 11 bytes (88 bits)
    Capture Length: 11 bytes (88 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Set Scan Parameters
    Command Opcode: LE Set Scan Parameters (0x200b)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1011 = Opcode Command Field: LE Set Scan Parameters (0x00b)
    Parameter Total Length: 7
    Scan Type: Passive (0x00)
    Scan Interval: 96 (60 msec)
    Scan Window: 48 (30 msec)
    Own Address Type: Public Device Address (0x00)
    Scan Filter Policy: Ignore advertisements from devices not in the white list only. Ignore directed advertisements not addressed to this device (0x01)

Frame 8: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.132734000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.132734000 seconds
    [Time delta from previous captured frame: 0.001451000 seconds]
    [Time delta from previous displayed frame: 0.001451000 seconds]
    [Time since reference or first frame: 0.007068000 seconds]
    Frame Number: 8
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Set Scan Parameters (0x200b)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1011 = Opcode Command Field: LE Set Scan Parameters (0x00b)
    Status: Success (0x00)
    [Command in frame: 7]
    [Command-Response Delta: 1.451ms]

Frame 9: 6 bytes on wire (48 bits), 6 bytes captured (48 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.132877000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.132877000 seconds
    [Time delta from previous captured frame: 0.000143000 seconds]
    [Time delta from previous displayed frame: 0.000143000 seconds]
    [Time since reference or first frame: 0.007211000 seconds]
    Frame Number: 9
    Frame Length: 6 bytes (48 bits)
    Capture Length: 6 bytes (48 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Set Scan Enable
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Parameter Total Length: 2
    Scan Enable: true (0x01)
    Filter Duplicates: true (0x01)

Frame 10: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.133618000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.133618000 seconds
    [Time delta from previous captured frame: 0.000741000 seconds]
    [Time delta from previous displayed frame: 0.000741000 seconds]
    [Time since reference or first frame: 0.007952000 seconds]
    Frame Number: 10
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Status: Success (0x00)
    [Command in frame: 9]
    [Command-Response Delta: 0.741ms]

Frame 11: 36 bytes on wire (288 bits), 36 bytes captured (288 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.164193000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.164193000 seconds
    [Time delta from previous captured frame: 0.030575000 seconds]
    [Time delta from previous displayed frame: 0.030575000 seconds]
    [Time since reference or first frame: 0.038527000 seconds]
    Frame Number: 11
    Frame Length: 36 bytes (288 bits)
    Capture Length: 36 bytes (288 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt:btcommon]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - LE Meta
    Event Code: LE Meta (0x3e)
    Parameter Total Length: 33
    Sub Event: LE Advertising Report (0x02)
    Num Reports: 1
    Event Type: Connectable Undirected Advertising (0x00)
    Peer Address Type: Public Device Address (0x00)
    BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)
    Data Length: 21
    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: 03b80e5a-ede8-4b33-a751-6ce34ec4c700 (Unknown)
    RSSI: -76dBm

Frame 12: 6 bytes on wire (48 bits), 6 bytes captured (48 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.164375000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.164375000 seconds
    [Time delta from previous captured frame: 0.000182000 seconds]
    [Time delta from previous displayed frame: 0.000182000 seconds]
    [Time since reference or first frame: 0.038709000 seconds]
    Frame Number: 12
    Frame Length: 6 bytes (48 bits)
    Capture Length: 6 bytes (48 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Set Scan Enable
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Parameter Total Length: 2
    Scan Enable: false (0x00)
    Filter Duplicates: false (0x00)

Frame 13: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.166767000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.166767000 seconds
    [Time delta from previous captured frame: 0.002392000 seconds]
    [Time delta from previous displayed frame: 0.002392000 seconds]
    [Time since reference or first frame: 0.041101000 seconds]
    Frame Number: 13
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Set Scan Enable (0x200c)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1100 = Opcode Command Field: LE Set Scan Enable (0x00c)
    Status: Success (0x00)
    [Command in frame: 12]
    [Command-Response Delta: 2.392ms]

Frame 14: 29 bytes on wire (232 bits), 29 bytes captured (232 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.166903000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.166903000 seconds
    [Time delta from previous captured frame: 0.000136000 seconds]
    [Time delta from previous displayed frame: 0.000136000 seconds]
    [Time since reference or first frame: 0.041237000 seconds]
    Frame Number: 14
    Frame Length: 29 bytes (232 bits)
    Capture Length: 29 bytes (232 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Create Connection
    Command Opcode: LE Create Connection (0x200d)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1101 = Opcode Command Field: LE Create Connection (0x00d)
    Parameter Total Length: 25
    Scan Interval: 96 (60 msec)
    Scan Window: 96 (60 msec)
    Initiator Filter Policy: Use Peer Address (0x00)
    Peer Address Type: Public Device Address (0x00)
    BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)
    Own Address Type: Public Device Address (0x00)
    Connection Interval Min: 24 (30 msec)
    Connection Interval Max: 40 (50 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 42 (0.42 sec)
    Min CE Length: 0 (0 msec)
    Max CE Length: 0 (0 msec)

Frame 15: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.167700000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.167700000 seconds
    [Time delta from previous captured frame: 0.000797000 seconds]
    [Time delta from previous displayed frame: 0.000797000 seconds]
    [Time since reference or first frame: 0.042034000 seconds]
    Frame Number: 15
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Pending (0x00)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Create Connection (0x200d)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1101 = Opcode Command Field: LE Create Connection (0x00d)
    [Command in frame: 14]
    [Command-Pending Delta: 0.797ms]

Frame 16: 22 bytes on wire (176 bits), 22 bytes captured (176 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.229267000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.229267000 seconds
    [Time delta from previous captured frame: 0.061567000 seconds]
    [Time delta from previous displayed frame: 0.061567000 seconds]
    [Time since reference or first frame: 0.103601000 seconds]
    Frame Number: 16
    Frame Length: 22 bytes (176 bits)
    Capture Length: 22 bytes (176 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - LE Meta
    Event Code: LE Meta (0x3e)
    Parameter Total Length: 19
    Sub Event: LE Connection Complete (0x01)
    Status: Success (0x00)
    Connection Handle: 0x0040
    Role: Currently the Master for specified BD_ADDR (0x00)
    Peer Address Type: Public Device Address (0x00)
    BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)
    Connection Interval: 39 (48.75 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 42 (0.42 sec)
    Master Clock Accuracy: 500 ppm (0x00)
    [Command in frame: 14]
    [Pending in frame: 15]
    [Pending-Response Delta: 61.567ms]
    [Command-Response Delta: 62.364ms]

Frame 17: 6 bytes on wire (48 bits), 6 bytes captured (48 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.229832000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.229832000 seconds
    [Time delta from previous captured frame: 0.000565000 seconds]
    [Time delta from previous displayed frame: 0.000565000 seconds]
    [Time since reference or first frame: 0.104166000 seconds]
    Frame Number: 17
    Frame Length: 6 bytes (48 bits)
    Capture Length: 6 bytes (48 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Read Remote Used Features
    Command Opcode: LE Read Remote Used Features (0x2016)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0110 = Opcode Command Field: LE Read Remote Used Features (0x016)
    Parameter Total Length: 2
    Connection Handle: 0x0040

Frame 18: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.241908000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.241908000 seconds
    [Time delta from previous captured frame: 0.012076000 seconds]
    [Time delta from previous displayed frame: 0.012076000 seconds]
    [Time since reference or first frame: 0.116242000 seconds]
    Frame Number: 18
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Pending (0x00)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Read Remote Used Features (0x2016)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0110 = Opcode Command Field: LE Read Remote Used Features (0x016)
    [Command in frame: 17]
    [Command-Pending Delta: 12.076ms]

Frame 19: 15 bytes on wire (120 bits), 15 bytes captured (120 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.418781000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.418781000 seconds
    [Time delta from previous captured frame: 0.176873000 seconds]
    [Time delta from previous displayed frame: 0.176873000 seconds]
    [Time since reference or first frame: 0.293115000 seconds]
    Frame Number: 19
    Frame Length: 15 bytes (120 bits)
    Capture Length: 15 bytes (120 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - LE Meta
    Event Code: LE Meta (0x3e)
    Parameter Total Length: 12
    Sub Event: LE Read Remote Used Features Complete (0x04)
    Status: Success (0x00)
    Connection Handle: 0x0040
    Supported LE Features: 0x0000000000000001, LE Encryption
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... ...1 = LE Encryption: True
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... ..0. = Connection Parameters Request Procedure: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... .0.. = Extended Reject Indication: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... .... 0... = Slave-Initiated Features Exchange: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... ...0 .... = Ping: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... ..0. .... = Data Packet Length Extension: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... .0.. .... = LL Privacy: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .... 0... .... = Extended Scanner Filter Policies: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... ...0 .... .... = LE 2M PHY: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... ..0. .... .... = Stable Modulation Index - Tx: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... .0.. .... .... = Stable Modulation Index - Rx: False
        .... .... .... .... .... .... .... .... .... .... .... .... .... 0... .... .... = LE Coded PHY: False
        .... .... .... .... .... .... .... .... .... .... .... .... ...0 .... .... .... = LE Extended Advertising: False
        .... .... .... .... .... .... .... .... .... .... .... .... ..0. .... .... .... = LE Periodic Advertising: False
        .... .... .... .... .... .... .... .... .... .... .... .... .0.. .... .... .... = Channel Selection Algorithm #2: False
        .... .... .... .... .... .... .... .... .... .... .... .... 0... .... .... .... = Power Class 1: False
        .... .... .... .... .... .... .... .... .... .... .... ...0 .... .... .... .... = Minimum Number of Used Channels Procedure: False
        0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 000. .... .... .... .... = Reserved: 0x000000000000
    [Command in frame: 17]
    [Pending in frame: 18]
    [Pending-Response Delta: 176.873ms]
    [Command-Response Delta: 188.949ms]

Frame 20: 32 bytes on wire (256 bits), 32 bytes captured (256 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.418952000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.418952000 seconds
    [Time delta from previous captured frame: 0.000171000 seconds]
    [Time delta from previous displayed frame: 0.000171000 seconds]
    [Time since reference or first frame: 0.293286000 seconds]
    Frame Number: 20
    Frame Length: 32 bytes (256 bits)
    Capture Length: 32 bytes (256 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Start Encryption
    Command Opcode: LE Start Encryption (0x2019)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 1001 = Opcode Command Field: LE Start Encryption (0x019)
    Parameter Total Length: 28
    Connection Handle: 0x0040
    Random Number: 8e927d5584506343
    Encrypted Diversifier: 0xe0f2
    Long Term Key: daeea911906c4fbfa6ca554d1c08bbbb

Frame 21: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.420559000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.420559000 seconds
    [Time delta from previous captured frame: 0.001607000 seconds]
    [Time delta from previous displayed frame: 0.001607000 seconds]
    [Time since reference or first frame: 0.294893000 seconds]
    Frame Number: 21
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Pending (0x00)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Start Encryption (0x2019)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 1001 = Opcode Command Field: LE Start Encryption (0x019)
    [Command in frame: 20]
    [Command-Pending Delta: 1.607ms]

Frame 22: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.711234000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.711234000 seconds
    [Time delta from previous captured frame: 0.290675000 seconds]
    [Time delta from previous displayed frame: 0.290675000 seconds]
    [Time since reference or first frame: 0.585568000 seconds]
    Frame Number: 22
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Encryption Change
    Event Code: Encryption Change (0x08)
    Parameter Total Length: 4
    Status: Success (0x00)
    Connection Handle: 0x0040
    Encryption Enable: Link Level Encryption is ON (0x01)
    [Command in frame: 20]
    [Pending in frame: 21]
    [Pending-Response Delta: 290.675ms]
    [Command-Response Delta: 292.282ms]

Frame 23: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.711377000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.711377000 seconds
    [Time delta from previous captured frame: 0.000143000 seconds]
    [Time delta from previous displayed frame: 0.000143000 seconds]
    [Time since reference or first frame: 0.585711000 seconds]
    Frame Number: 23
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - Write Authenticated Payload Timeout
    Command Opcode: Write Authenticated Payload Timeout (0x0c7c)
        0000 11.. .... .... = Opcode Group Field: Host Controller & Baseband Commands (0x03)
        .... ..00 0111 1100 = Opcode Command Field: Write Authenticated Payload Timeout (0x07c)
    Parameter Total Length: 4
    Connection Handle: 0x0040
    Authenticated Payload Timeout: 3000

Frame 24: 9 bytes on wire (72 bits), 9 bytes captured (72 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.712505000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.712505000 seconds
    [Time delta from previous captured frame: 0.001128000 seconds]
    [Time delta from previous displayed frame: 0.001128000 seconds]
    [Time since reference or first frame: 0.586839000 seconds]
    Frame Number: 24
    Frame Length: 9 bytes (72 bits)
    Capture Length: 9 bytes (72 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 6
    Number of Allowed Command Packets: 1
    Command Opcode: Write Authenticated Payload Timeout (0x0c7c)
        0000 11.. .... .... = Opcode Group Field: Host Controller & Baseband Commands (0x03)
        .... ..00 0111 1100 = Opcode Command Field: Write Authenticated Payload Timeout (0x07c)
    Status: Success (0x00)
    Connection Handle: 0x0040
    [Command in frame: 23]
    [Command-Response Delta: 1.128ms]

Frame 25: 12 bytes on wire (96 bits), 12 bytes captured (96 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.813170000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.813170000 seconds
    [Time delta from previous captured frame: 0.100665000 seconds]
    [Time delta from previous displayed frame: 0.100665000 seconds]
    [Time since reference or first frame: 0.687504000 seconds]
    Frame Number: 25
    Frame Length: 12 bytes (96 bits)
    Capture Length: 12 bytes (96 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 7
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 3
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Exchange MTU Request (0x02)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 0010 = Method: Exchange MTU Request (0x02)
    Client Rx MTU: 517

Frame 26: 12 bytes on wire (96 bits), 12 bytes captured (96 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.906209000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.906209000 seconds
    [Time delta from previous captured frame: 0.093039000 seconds]
    [Time delta from previous displayed frame: 0.093039000 seconds]
    [Time since reference or first frame: 0.780543000 seconds]
    Frame Number: 26
    Frame Length: 12 bytes (96 bits)
    Capture Length: 12 bytes (96 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 7
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 3
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Exchange MTU Response (0x03)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 0011 = Method: Exchange MTU Response (0x03)
    Server Rx MTU: 23
    [Request in Frame: 25]

Frame 27: 12 bytes on wire (96 bits), 12 bytes captured (96 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.906846000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.906846000 seconds
    [Time delta from previous captured frame: 0.000637000 seconds]
    [Time delta from previous displayed frame: 0.000637000 seconds]
    [Time since reference or first frame: 0.781180000 seconds]
    Frame Number: 27
    Frame Length: 12 bytes (96 bits)
    Capture Length: 12 bytes (96 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 7
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 3
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Request (0x0a)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1010 = Method: Read Request (0x0a)
    Handle: 0x001b (Unknown)

Frame 28: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:34.955031000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404934.955031000 seconds
    [Time delta from previous captured frame: 0.048185000 seconds]
    [Time delta from previous displayed frame: 0.048185000 seconds]
    [Time since reference or first frame: 0.829365000 seconds]
    Frame Number: 28
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 29: 11 bytes on wire (88 bits), 11 bytes captured (88 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.003690000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.003690000 seconds
    [Time delta from previous captured frame: 0.048659000 seconds]
    [Time delta from previous displayed frame: 0.048659000 seconds]
    [Time since reference or first frame: 0.878024000 seconds]
    Frame Number: 29
    Frame Length: 11 bytes (88 bits)
    Capture Length: 11 bytes (88 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 6
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 2
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Response (0x0b)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1011 = Method: Read Response (0x0b)
    [Handle: 0x001b (Unknown)]
    Value: 00
    [Request in Frame: 27]

Frame 30: 12 bytes on wire (96 bits), 12 bytes captured (96 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.004284000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.004284000 seconds
    [Time delta from previous captured frame: 0.000594000 seconds]
    [Time delta from previous displayed frame: 0.000594000 seconds]
    [Time since reference or first frame: 0.878618000 seconds]
    Frame Number: 30
    Frame Length: 12 bytes (96 bits)
    Capture Length: 12 bytes (96 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 7
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 3
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Request (0x0a)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1010 = Method: Read Request (0x0a)
    Handle: 0x0003 (Unknown)

Frame 31: 32 bytes on wire (256 bits), 32 bytes captured (256 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.101842000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.101842000 seconds
    [Time delta from previous captured frame: 0.097558000 seconds]
    [Time delta from previous displayed frame: 0.097558000 seconds]
    [Time since reference or first frame: 0.976176000 seconds]
    Frame Number: 31
    Frame Length: 32 bytes (256 bits)
    Capture Length: 32 bytes (256 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 27
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 23
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Response (0x0b)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1011 = Method: Read Response (0x0b)
    [Handle: 0x0003 (Unknown)]
    Value: 6d6963726f4b4559322d323520416972000000000000
    [Request in Frame: 30]

Frame 32: 12 bytes on wire (96 bits), 12 bytes captured (96 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.102404000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.102404000 seconds
    [Time delta from previous captured frame: 0.000562000 seconds]
    [Time delta from previous displayed frame: 0.000562000 seconds]
    [Time since reference or first frame: 0.976738000 seconds]
    Frame Number: 32
    Frame Length: 12 bytes (96 bits)
    Capture Length: 12 bytes (96 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 7
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 3
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Request (0x0a)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1010 = Method: Read Request (0x0a)
    Handle: 0x0005 (Unknown)

Frame 33: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.150049000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.150049000 seconds
    [Time delta from previous captured frame: 0.047645000 seconds]
    [Time delta from previous displayed frame: 0.047645000 seconds]
    [Time since reference or first frame: 1.024383000 seconds]
    Frame Number: 33
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 34: 12 bytes on wire (96 bits), 12 bytes captured (96 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.198737000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.198737000 seconds
    [Time delta from previous captured frame: 0.048688000 seconds]
    [Time delta from previous displayed frame: 0.048688000 seconds]
    [Time since reference or first frame: 1.073071000 seconds]
    Frame Number: 34
    Frame Length: 12 bytes (96 bits)
    Capture Length: 12 bytes (96 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 7
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 3
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Response (0x0b)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1011 = Method: Read Response (0x0b)
    [Handle: 0x0005 (Unknown)]
    Value: 8000
    [Request in Frame: 32]

Frame 35: 16 bytes on wire (128 bits), 16 bytes captured (128 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.199604000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.199604000 seconds
    [Time delta from previous captured frame: 0.000867000 seconds]
    [Time delta from previous displayed frame: 0.000867000 seconds]
    [Time since reference or first frame: 1.073938000 seconds]
    Frame Number: 35
    Frame Length: 16 bytes (128 bits)
    Capture Length: 16 bytes (128 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 11
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 7
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Request (0x10)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0000 = Method: Read By Group Type Request (0x10)
    Starting Handle: 0x0001
    Ending Handle: 0xffff
    UUID: GATT Primary Service Declaration (0x2800)

Frame 36: 29 bytes on wire (232 bits), 29 bytes captured (232 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.296936000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.296936000 seconds
    [Time delta from previous captured frame: 0.097332000 seconds]
    [Time delta from previous displayed frame: 0.097332000 seconds]
    [Time since reference or first frame: 1.171270000 seconds]
    Frame Number: 36
    Frame Length: 29 bytes (232 bits)
    Capture Length: 29 bytes (232 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 24
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 20
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Response (0x11)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0001 = Method: Read By Group Type Response (0x11)
    Length: 6
    Attribute Data, Handle: 0x0001, Group End Handle: 0x0009, UUID: Generic Access Profile
        Handle: 0x0001 (Unknown)
        Group End Handle: 0x0009
        UUID: Generic Access Profile (0x1800)
    Attribute Data, Handle: 0x000c, Group End Handle: 0x000f, UUID: Generic Attribute Profile
        Handle: 0x000c (Generic Access Profile: Unknown)
            [Service UUID: Generic Access Profile (0x1800)]
        Group End Handle: 0x000f
        UUID: Generic Attribute Profile (0x1801)
    Attribute Data, Handle: 0x0010, Group End Handle: 0x0014, UUID: Device Information
        Handle: 0x0010 (Generic Attribute Profile: Unknown)
            [Service UUID: Generic Attribute Profile (0x1801)]
        Group End Handle: 0x0014
        UUID: Device Information (0x180a)
    [UUID: GATT Primary Service Declaration (0x2800)]
    [Request in Frame: 35]

Frame 37: 14 bytes on wire (112 bits), 14 bytes captured (112 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.297747000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.297747000 seconds
    [Time delta from previous captured frame: 0.000811000 seconds]
    [Time delta from previous displayed frame: 0.000811000 seconds]
    [Time since reference or first frame: 1.172081000 seconds]
    Frame Number: 37
    Frame Length: 14 bytes (112 bits)
    Capture Length: 14 bytes (112 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 9
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 5
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Write Request (0x12)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0010 = Method: Write Request (0x12)
    Handle: 0x001c (Device Information: Unknown)
        [Service UUID: Device Information (0x180a)]
    Value: 0100

Frame 38: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.345027000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.345027000 seconds
    [Time delta from previous captured frame: 0.047280000 seconds]
    [Time delta from previous displayed frame: 0.047280000 seconds]
    [Time since reference or first frame: 1.219361000 seconds]
    Frame Number: 38
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 39: 10 bytes on wire (80 bits), 10 bytes captured (80 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.393646000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.393646000 seconds
    [Time delta from previous captured frame: 0.048619000 seconds]
    [Time delta from previous displayed frame: 0.048619000 seconds]
    [Time since reference or first frame: 1.267980000 seconds]
    Frame Number: 39
    Frame Length: 10 bytes (80 bits)
    Capture Length: 10 bytes (80 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 5
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 1
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Write Response (0x13)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0011 = Method: Write Response (0x13)
    [Handle: 0x001c (Device Information: Unknown)]
        [Service UUID: Device Information (0x180a)]
    [Request in Frame: 37]

Frame 40: 14 bytes on wire (112 bits), 14 bytes captured (112 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.394200000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.394200000 seconds
    [Time delta from previous captured frame: 0.000554000 seconds]
    [Time delta from previous displayed frame: 0.000554000 seconds]
    [Time since reference or first frame: 1.268534000 seconds]
    Frame Number: 40
    Frame Length: 14 bytes (112 bits)
    Capture Length: 14 bytes (112 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 9
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 5
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Blob Request (0x0c)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1100 = Method: Read Blob Request (0x0c)
    Handle: 0x0003 (Generic Access Profile: Unknown)
        [Service UUID: Generic Access Profile (0x1800)]
    Offset: 22

Frame 41: 21 bytes on wire (168 bits), 21 bytes captured (168 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.394748000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.394748000 seconds
    [Time delta from previous captured frame: 0.000548000 seconds]
    [Time delta from previous displayed frame: 0.000548000 seconds]
    [Time since reference or first frame: 1.269082000 seconds]
    Frame Number: 41
    Frame Length: 21 bytes (168 bits)
    Capture Length: 21 bytes (168 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 16
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 12
    CID: Low Energy L2CAP Signaling Channel (0x0005)
    Command: Connection Parameter Update Request
        Command Code: Connection Parameter Update Request (0x12)
        Command Identifier: 0x3c
        Command Length: 8
        Min. Interval: 6 (7.5 msec)
        Max. Interval: 7 (8.75 msec)
        Slave Latency: 0 LL Connection Events
        Timeout Multiplier: 200 (2 sec)

Frame 42: 15 bytes on wire (120 bits), 15 bytes captured (120 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.394893000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.394893000 seconds
    [Time delta from previous captured frame: 0.000145000 seconds]
    [Time delta from previous displayed frame: 0.000145000 seconds]
    [Time since reference or first frame: 1.269227000 seconds]
    Frame Number: 42
    Frame Length: 15 bytes (120 bits)
    Capture Length: 15 bytes (120 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 10
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 6
    CID: Low Energy L2CAP Signaling Channel (0x0005)
    Command: Connection Parameter Update Response
        Command Code: Connection Parameter Update Response (0x13)
        Command Identifier: 0x3c
        Command Length: 2
        Move Result: Accepted (0x0000)

Frame 43: 18 bytes on wire (144 bits), 18 bytes captured (144 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.394934000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.394934000 seconds
    [Time delta from previous captured frame: 0.000041000 seconds]
    [Time delta from previous displayed frame: 0.000041000 seconds]
    [Time since reference or first frame: 1.269268000 seconds]
    Frame Number: 43
    Frame Length: 18 bytes (144 bits)
    Capture Length: 18 bytes (144 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Connection Update
    Command Opcode: LE Connection Update (0x2013)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0011 = Opcode Command Field: LE Connection Update (0x013)
    Parameter Total Length: 14
    Connection Handle: 0x0040
    Connection Interval Min: 6 (7.5 msec)
    Connection Interval Max: 7 (8.75 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 200 (2 sec)
    Min CE Length: 0 (0 msec)
    Max CE Length: 0 (0 msec)

Frame 44: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.397150000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.397150000 seconds
    [Time delta from previous captured frame: 0.002216000 seconds]
    [Time delta from previous displayed frame: 0.002216000 seconds]
    [Time since reference or first frame: 1.271484000 seconds]
    Frame Number: 44
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Pending (0x00)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Connection Update (0x2013)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0011 = Opcode Command Field: LE Connection Update (0x013)
    [Command in frame: 43]
    [Command-Pending Delta: 2.216ms]

Frame 45: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.491878000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.491878000 seconds
    [Time delta from previous captured frame: 0.094728000 seconds]
    [Time delta from previous displayed frame: 0.094728000 seconds]
    [Time since reference or first frame: 1.366212000 seconds]
    Frame Number: 45
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 46: 16 bytes on wire (128 bits), 16 bytes captured (128 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.539998000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.539998000 seconds
    [Time delta from previous captured frame: 0.048120000 seconds]
    [Time delta from previous displayed frame: 0.048120000 seconds]
    [Time since reference or first frame: 1.414332000 seconds]
    Frame Number: 46
    Frame Length: 16 bytes (128 bits)
    Capture Length: 16 bytes (128 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 11
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 7
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read Blob Response (0x0d)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..00 1101 = Method: Read Blob Response (0x0d)
    [Handle: 0x0003 (Generic Access Profile: Unknown)]
        [Service UUID: Generic Access Profile (0x1800)]
    Value: 000000000000
    [Request in Frame: 40]

Frame 47: 16 bytes on wire (128 bits), 16 bytes captured (128 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.540689000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.540689000 seconds
    [Time delta from previous captured frame: 0.000691000 seconds]
    [Time delta from previous displayed frame: 0.000691000 seconds]
    [Time since reference or first frame: 1.415023000 seconds]
    Frame Number: 47
    Frame Length: 16 bytes (128 bits)
    Capture Length: 16 bytes (128 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 11
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 7
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Request (0x10)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0000 = Method: Read By Group Type Request (0x10)
    Starting Handle: 0x0015
    Ending Handle: 0xffff
    UUID: GATT Primary Service Declaration (0x2800)

Frame 48: 31 bytes on wire (248 bits), 31 bytes captured (248 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.638067000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.638067000 seconds
    [Time delta from previous captured frame: 0.097378000 seconds]
    [Time delta from previous displayed frame: 0.097378000 seconds]
    [Time since reference or first frame: 1.512401000 seconds]
    Frame Number: 48
    Frame Length: 31 bytes (248 bits)
    Capture Length: 31 bytes (248 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 26
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 22
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Response (0x11)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0001 = Method: Read By Group Type Response (0x11)
    Length: 20
    Attribute Data, Handle: 0x0015, Group End Handle: 0x0018, UUID128: Unknown
        Handle: 0x0015 (Device Information: Unknown)
            [Service UUID: Device Information (0x180a)]
        Group End Handle: 0x0018
        UUID: 6643ae107948f8a59145b4bb781e61d0
    [UUID: GATT Primary Service Declaration (0x2800)]
    [Request in Frame: 47]

Frame 49: 16 bytes on wire (128 bits), 16 bytes captured (128 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.638783000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.638783000 seconds
    [Time delta from previous captured frame: 0.000716000 seconds]
    [Time delta from previous displayed frame: 0.000716000 seconds]
    [Time since reference or first frame: 1.513117000 seconds]
    Frame Number: 49
    Frame Length: 16 bytes (128 bits)
    Capture Length: 16 bytes (128 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 11
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 7
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Request (0x10)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0000 = Method: Read By Group Type Request (0x10)
    Starting Handle: 0x0019
    Ending Handle: 0xffff
    UUID: GATT Primary Service Declaration (0x2800)

Frame 50: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.686329000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.686329000 seconds
    [Time delta from previous captured frame: 0.047546000 seconds]
    [Time delta from previous displayed frame: 0.047546000 seconds]
    [Time since reference or first frame: 1.560663000 seconds]
    Frame Number: 50
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 51: 31 bytes on wire (248 bits), 31 bytes captured (248 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.741881000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.741881000 seconds
    [Time delta from previous captured frame: 0.055552000 seconds]
    [Time delta from previous displayed frame: 0.055552000 seconds]
    [Time since reference or first frame: 1.616215000 seconds]
    Frame Number: 51
    Frame Length: 31 bytes (248 bits)
    Capture Length: 31 bytes (248 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 26
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 22
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Response (0x11)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0001 = Method: Read By Group Type Response (0x11)
    Length: 20
    Attribute Data, Handle: 0x0019, Group End Handle: 0x001c, UUID128: Unknown
        Handle: 0x0019 (Unknown: Unknown)
            [Service UUID: d0611e78bbb44591a5f8487910ae4366]
        Group End Handle: 0x001c
        UUID: 00c7c44ee36c51a7334be8ed5a0eb803
    [UUID: GATT Primary Service Declaration (0x2800)]
    [Request in Frame: 49]

Frame 52: 13 bytes on wire (104 bits), 13 bytes captured (104 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.742020000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.742020000 seconds
    [Time delta from previous captured frame: 0.000139000 seconds]
    [Time delta from previous displayed frame: 0.000139000 seconds]
    [Time since reference or first frame: 1.616354000 seconds]
    Frame Number: 52
    Frame Length: 13 bytes (104 bits)
    Capture Length: 13 bytes (104 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - LE Meta
    Event Code: LE Meta (0x3e)
    Parameter Total Length: 10
    Sub Event: LE Connection Update Complete (0x03)
    Status: Success (0x00)
    Connection Handle: 0x0040
    Connection Interval: 6 (7.5 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 200 (2 sec)
    [Command in frame: 43]
    [Pending in frame: 44]
    [Pending-Response Delta: 344.87ms]
    [Command-Response Delta: 347.086ms]

Frame 53: 16 bytes on wire (128 bits), 16 bytes captured (128 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.744673000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.744673000 seconds
    [Time delta from previous captured frame: 0.002653000 seconds]
    [Time delta from previous displayed frame: 0.002653000 seconds]
    [Time since reference or first frame: 1.619007000 seconds]
    Frame Number: 53
    Frame Length: 16 bytes (128 bits)
    Capture Length: 16 bytes (128 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 11
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 7
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Read By Group Type Request (0x10)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0000 = Method: Read By Group Type Request (0x10)
    Starting Handle: 0x001d
    Ending Handle: 0xffff
    UUID: GATT Primary Service Declaration (0x2800)

Frame 54: 14 bytes on wire (112 bits), 14 bytes captured (112 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.757659000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.757659000 seconds
    [Time delta from previous captured frame: 0.012986000 seconds]
    [Time delta from previous displayed frame: 0.012986000 seconds]
    [Time since reference or first frame: 1.631993000 seconds]
    Frame Number: 54
    Frame Length: 14 bytes (112 bits)
    Capture Length: 14 bytes (112 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 9
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
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: Read By Group Type Request (0x10)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0000 = Method: Read By Group Type Request (0x10)
    Handle in Error: 0x001d (Unknown: Unknown)
        [Service UUID: 03b80e5aede84b33a7516ce34ec4c700]
    Error Code: Attribute Not Found (0x0a)
    [UUID: GATT Primary Service Declaration (0x2800)]
    [Request in Frame: 53]

Frame 55: 14 bytes on wire (112 bits), 14 bytes captured (112 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.805746000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.805746000 seconds
    [Time delta from previous captured frame: 0.048087000 seconds]
    [Time delta from previous displayed frame: 0.048087000 seconds]
    [Time since reference or first frame: 1.680080000 seconds]
    Frame Number: 55
    Frame Length: 14 bytes (112 bits)
    Capture Length: 14 bytes (112 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 9
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 5
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Write Request (0x12)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0010 = Method: Write Request (0x12)
    Handle: 0x000f (Generic Attribute Profile: Unknown)
        [Service UUID: Generic Attribute Profile (0x1801)]
    Value: 0200

Frame 56: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.811188000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.811188000 seconds
    [Time delta from previous captured frame: 0.005442000 seconds]
    [Time delta from previous displayed frame: 0.005442000 seconds]
    [Time since reference or first frame: 1.685522000 seconds]
    Frame Number: 56
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 57: 10 bytes on wire (80 bits), 10 bytes captured (80 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:35.816231000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404935.816231000 seconds
    [Time delta from previous captured frame: 0.005043000 seconds]
    [Time delta from previous displayed frame: 0.005043000 seconds]
    [Time since reference or first frame: 1.690565000 seconds]
    Frame Number: 57
    Frame Length: 10 bytes (80 bits)
    Capture Length: 10 bytes (80 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 5
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 1
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Write Response (0x13)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0011 = Method: Write Response (0x13)
    [Handle: 0x000f (Generic Attribute Profile: Unknown)]
        [Service UUID: Generic Attribute Profile (0x1801)]
    [Request in Frame: 55]

Frame 58: 14 bytes on wire (112 bits), 14 bytes captured (112 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.314496000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.314496000 seconds
    [Time delta from previous captured frame: 5.498265000 seconds]
    [Time delta from previous displayed frame: 5.498265000 seconds]
    [Time since reference or first frame: 7.188830000 seconds]
    Frame Number: 58
    Frame Length: 14 bytes (112 bits)
    Capture Length: 14 bytes (112 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 9
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 5
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Write Request (0x12)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0010 = Method: Write Request (0x12)
    Handle: 0x001c (Unknown: Unknown)
        [Service UUID: 03b80e5aede84b33a7516ce34ec4c700]
    Value: 0000

Frame 59: 10 bytes on wire (80 bits), 10 bytes captured (80 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.328618000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.328618000 seconds
    [Time delta from previous captured frame: 0.014122000 seconds]
    [Time delta from previous displayed frame: 0.014122000 seconds]
    [Time since reference or first frame: 7.202952000 seconds]
    Frame Number: 59
    Frame Length: 10 bytes (80 bits)
    Capture Length: 10 bytes (80 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap:btatt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 5
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 1
    CID: Attribute Protocol (0x0004)
Bluetooth Attribute Protocol
    Opcode: Write Response (0x13)
        0... .... = Authentication Signature: False
        .0.. .... = Command: False
        ..01 0011 = Method: Write Response (0x13)
    [Handle: 0x001c (Unknown: Unknown)]
        [Service UUID: 03b80e5aede84b33a7516ce34ec4c700]
    [Request in Frame: 58]

Frame 60: 21 bytes on wire (168 bits), 21 bytes captured (168 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.332713000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.332713000 seconds
    [Time delta from previous captured frame: 0.004095000 seconds]
    [Time delta from previous displayed frame: 0.004095000 seconds]
    [Time since reference or first frame: 7.207047000 seconds]
    Frame Number: 60
    Frame Length: 21 bytes (168 bits)
    Capture Length: 21 bytes (168 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..10 .... .... .... = PB Flag: First Automatically Flushable Packet (2)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 16
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 12
    CID: Low Energy L2CAP Signaling Channel (0x0005)
    Command: Connection Parameter Update Request
        Command Code: Connection Parameter Update Request (0x12)
        Command Identifier: 0xdf
        Command Length: 8
        Min. Interval: 6 (7.5 msec)
        Max. Interval: 7 (8.75 msec)
        Slave Latency: 0 LL Connection Events
        Timeout Multiplier: 200 (2 sec)

Frame 61: 15 bytes on wire (120 bits), 15 bytes captured (120 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.332929000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.332929000 seconds
    [Time delta from previous captured frame: 0.000216000 seconds]
    [Time delta from previous displayed frame: 0.000216000 seconds]
    [Time since reference or first frame: 7.207263000 seconds]
    Frame Number: 61
    Frame Length: 15 bytes (120 bits)
    Capture Length: 15 bytes (120 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_acl:btl2cap]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: ACL Data (0x02)
Bluetooth HCI ACL Packet
    .... 0000 0100 0000 = Connection Handle: 0x040
    ..00 .... .... .... = PB Flag: First Non-automatically Flushable Packet (0)
    00.. .... .... .... = BC Flag: Point-To-Point (0)
    Data Total Length: 10
    Data
    [Connect in frame: 16]
    [Source BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)]
    [Source Device Name: ]
    [Source Role: Unknown (0)]
    [Destination BD_ADDR: MurataMa_33:74:80 (b8:d7:af:33:74:80)]
    [Destination Device Name: ]
    [Destination Role: Unknown (0)]
    [Current Mode: Unknown (-1)]
Bluetooth L2CAP Protocol
    Length: 6
    CID: Low Energy L2CAP Signaling Channel (0x0005)
    Command: Connection Parameter Update Response
        Command Code: Connection Parameter Update Response (0x13)
        Command Identifier: 0xdf
        Command Length: 2
        Move Result: Accepted (0x0000)

Frame 62: 18 bytes on wire (144 bits), 18 bytes captured (144 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.333079000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.333079000 seconds
    [Time delta from previous captured frame: 0.000150000 seconds]
    [Time delta from previous displayed frame: 0.000150000 seconds]
    [Time since reference or first frame: 7.207413000 seconds]
    Frame Number: 62
    Frame Length: 18 bytes (144 bits)
    Capture Length: 18 bytes (144 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Connection Update
    Command Opcode: LE Connection Update (0x2013)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0011 = Opcode Command Field: LE Connection Update (0x013)
    Parameter Total Length: 14
    Connection Handle: 0x0040
    Connection Interval Min: 6 (7.5 msec)
    Connection Interval Max: 7 (8.75 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 200 (2 sec)
    Min CE Length: 0 (0 msec)
    Max CE Length: 0 (0 msec)

Frame 63: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.342257000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.342257000 seconds
    [Time delta from previous captured frame: 0.009178000 seconds]
    [Time delta from previous displayed frame: 0.009178000 seconds]
    [Time since reference or first frame: 7.216591000 seconds]
    Frame Number: 63
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Pending (0x00)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Connection Update (0x2013)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0011 = Opcode Command Field: LE Connection Update (0x013)
    [Command in frame: 62]
    [Command-Pending Delta: 9.178ms]

Frame 64: 8 bytes on wire (64 bits), 8 bytes captured (64 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.351861000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.351861000 seconds
    [Time delta from previous captured frame: 0.009604000 seconds]
    [Time delta from previous displayed frame: 0.009604000 seconds]
    [Time since reference or first frame: 7.226195000 seconds]
    Frame Number: 64
    Frame Length: 8 bytes (64 bits)
    Capture Length: 8 bytes (64 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Number of Completed Packets
    Event Code: Number of Completed Packets (0x13)
    Parameter Total Length: 5
    Number of Connection Handles: 1
    Connection Handle: 0x0040
    Number of Completed Packets: 2

Frame 65: 13 bytes on wire (104 bits), 13 bytes captured (104 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:41.391226000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404941.391226000 seconds
    [Time delta from previous captured frame: 0.039365000 seconds]
    [Time delta from previous displayed frame: 0.039365000 seconds]
    [Time since reference or first frame: 7.265560000 seconds]
    Frame Number: 65
    Frame Length: 13 bytes (104 bits)
    Capture Length: 13 bytes (104 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - LE Meta
    Event Code: LE Meta (0x3e)
    Parameter Total Length: 10
    Sub Event: LE Connection Update Complete (0x03)
    Status: Success (0x00)
    Connection Handle: 0x0040
    Connection Interval: 6 (7.5 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 200 (2 sec)
    [Command in frame: 62]
    [Pending in frame: 63]
    [Pending-Response Delta: 48.969ms]
    [Command-Response Delta: 58.147ms]

Frame 66: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:43.091653000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404943.091653000 seconds
    [Time delta from previous captured frame: 1.700427000 seconds]
    [Time delta from previous displayed frame: 1.700427000 seconds]
    [Time since reference or first frame: 8.965987000 seconds]
    Frame Number: 66
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - Disconnect
    Command Opcode: Disconnect (0x0406)
        0000 01.. .... .... = Opcode Group Field: Link Control Commands (0x01)
        .... ..00 0000 0110 = Opcode Command Field: Disconnect (0x006)
    Parameter Total Length: 3
    Connection Handle: 0x0040
    Reason: Remote User Terminated Connection (0x13)

Frame 67: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:43.092249000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404943.092249000 seconds
    [Time delta from previous captured frame: 0.000596000 seconds]
    [Time delta from previous displayed frame: 0.000596000 seconds]
    [Time since reference or first frame: 8.966583000 seconds]
    Frame Number: 67
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Pending (0x00)
    Number of Allowed Command Packets: 1
    Command Opcode: Disconnect (0x0406)
        0000 01.. .... .... = Opcode Group Field: Link Control Commands (0x01)
        .... ..00 0000 0110 = Opcode Command Field: Disconnect (0x006)
    [Command in frame: 66]
    [Command-Pending Delta: 0.596ms]

Frame 68: 7 bytes on wire (56 bits), 7 bytes captured (56 bits) on interface 0
    Interface id: 0 (bluetooth0)
        Interface name: bluetooth0
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 14, 2020 20:35:43.094221000 JST
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1597404943.094221000 seconds
    [Time delta from previous captured frame: 0.001972000 seconds]
    [Time delta from previous displayed frame: 0.001972000 seconds]
    [Time since reference or first frame: 8.968555000 seconds]
    Frame Number: 68
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Disconnect Complete
    Event Code: Disconnect Complete (0x05)
    Parameter Total Length: 4
    Status: Success (0x00)
    Connection Handle: 0x0040
    Reason: Connection Terminated by Local Host (0x16)
    [Command in frame: 66]
    [Pending in frame: 67]
    [Pending-Response Delta: 1.972ms]
    [Command-Response Delta: 2.568ms]


memo
bluetoothctl ... scan/connect/get attribute可能