Android BleCharacteristicNotFoundException:找不到UUID的特征。如何从蓝牙设备获取特征UUID？

尽管提供了我认为正确的

UUID:D/ERROR:：com.polidea.rxandroidble2.exceptions.BleCharacteristicNotFoundException:UUID 00001101-0000-1000-8000-00805f9b34fb未找到的特征，但我无法从我的设备检索数据。我该怎么做呢

// Get device from scan
rxBleDevice = scanResult.bleDevice

val deviceUUID = UUID.fromString(scanResult.bleDevice.bluetoothDevice.uuids[0].toString())

// Check device info
println("Name: " + scanResult.bleDevice.name) // Prints to "TestDevice"
println("MAC Address: " + scanResult.bleDevice.macAddress) // Prints to "34:81:F4:3C:2D:7B"
println("UUID = $deviceUUID") // Prints to "00001101-0000-1000-8000-00805f9b34fb"
println("Service UUIDs = " + scanResult.scanRecord.serviceUuids) // Prints to "null"

/* Establish connection to device */
rxBleDevice!!.establishConnection(false) ?
 .doOnNext {
  _ ->
   Log.d("Device: ", "Connection Established")
 } ?
 .flatMapSingle {
  rxBleConnection ->
   deviceUUID? .let {
    rxBleConnection.readCharacteristic(it)
   }
 } ? .subscribe({
  count ->
  // count should be in bytes
  println("SUCCESS: $count")

 }, {
  throwable ->
  Log.d("ERROR: ", "$throwable")
 })

我期望的输出是一个字节数组，读取“datc0099”，例如。
您尝试使用的
UUID
来自
BluetoothDevice.getUuids（）
，它似乎来自“经典”蓝牙世界

scanResult.scanRecord.ServiceUUID
也可能是
null
，因为
UUID
不保证公布。请记住，服务
UUID
和特征
UUID
，虽然具有相同的格式，但识别不同的属性

获取您正在寻找的
UUID
的最简单方法是询问外围设备的工程师

或者，如果您知道要搜索什么，您可以连接到外围设备，开始服务发现并通过搜索结果进行搜索。在
1.9.0
版本中使用此库时，它将如下所示：

rxBleClient.scanBleDevices(
    ScanSettings.Builder()
        .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
        .build(),
    ScanFilter.Builder()
        .setDeviceName("TestDevice")
        .build()
)
    .take(1)
    .flatMap { it.bleDevice.establishConnection(false) }
    .flatMapSingle { it.discoverServices() }
    .take(1)
    .subscribe(
        { t -> t.bluetoothGattServices }, // Print services
        { Log.e("ERROR", "WHOOPS!", it) }
    )

日志选项应为：

RxBleClient.updateLogOptions(LogOptions.Builder()
        .setLogLevel(LogConstants.VERBOSE)
        .setUuidsLogSetting(LogConstants.UUIDS_FULL)
        .build()

在您的日志中，您应该看到如下内容：

V/RxBle#ServiceDiscoveryOperation: Preparing services description
V/RxBle#ServiceDiscoveryOperation: --------------- ====== Printing peripheral content ====== ---------------
V/RxBle#ServiceDiscoveryOperation: MAC='XX:XX:XX:XX:XX:XX'
V/RxBle#ServiceDiscoveryOperation: PERIPHERAL NAME: SensorTag
V/RxBle#ServiceDiscoveryOperation: -------------------------------------------------------------------------
V/RxBle#ServiceDiscoveryOperation: Primary Service - Generic Access (00001800-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 1
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Device Name (00002a00-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Appearance (00002a01-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Peripheral Privacy Flag (00002a02-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:  * Reconnection Address (00002a03-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE ]
V/RxBle#ServiceDiscoveryOperation:  * Peripheral Preferred Connection Parameters (00002a04-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation: Primary Service - Generic Attribute (00001801-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 12
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Service Changed (00002a05-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ INDICATE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Device Information (0000180a-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 16
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * System ID (00002a23-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Model Number String (00002a24-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Serial Number String (00002a25-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Firmware Revision String (00002a26-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Hardware Revision String (00002a27-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Software Revision String (00002a28-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Manufacturer Name String (00002a29-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * IEEE 11073-20601 Regulatory Certification Data List (00002a2a-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * PnP ID (00002a50-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa00-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 35
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa01-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa02-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa10-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 43
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa11-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa12-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa13-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa20-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 54
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa21-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa22-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa30-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 62
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa31-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa32-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa33-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa40-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 73
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa41-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa42-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa43-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa50-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 85
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa51-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa52-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (0000ffe0-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 93
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (0000ffe1-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa60-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 98
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa61-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa62-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000ccc0-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 105
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ccc1-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ccc2-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ccc3-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000ffc0-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 116
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ffc1-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE_NO_RESPONSE WRITE NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ffc2-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE_NO_RESPONSE WRITE NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: --------------- ====== Finished peripheral content ====== ---------------

括号中提供了特征
UUID
s。您只需要找到您正在寻找的设备。
您尝试使用的
UUID
来自
BluetoothDevice.getUuids（）
，它似乎来自“经典”蓝牙世界

scanResult.scanRecord.ServiceUUID
也可能是
null
，因为
UUID
不保证公布。请记住，服务
UUID
和特征
UUID
，虽然具有相同的格式，但识别不同的属性

获取您正在寻找的
UUID
的最简单方法是询问外围设备的工程师

或者，如果您知道要搜索什么，您可以连接到外围设备，开始服务发现并通过搜索结果进行搜索。在
1.9.0
版本中使用此库时，它将如下所示：

rxBleClient.scanBleDevices(
    ScanSettings.Builder()
        .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
        .build(),
    ScanFilter.Builder()
        .setDeviceName("TestDevice")
        .build()
)
    .take(1)
    .flatMap { it.bleDevice.establishConnection(false) }
    .flatMapSingle { it.discoverServices() }
    .take(1)
    .subscribe(
        { t -> t.bluetoothGattServices }, // Print services
        { Log.e("ERROR", "WHOOPS!", it) }
    )

日志选项应为：

RxBleClient.updateLogOptions(LogOptions.Builder()
        .setLogLevel(LogConstants.VERBOSE)
        .setUuidsLogSetting(LogConstants.UUIDS_FULL)
        .build()

在您的日志中，您应该看到如下内容：

V/RxBle#ServiceDiscoveryOperation: Preparing services description
V/RxBle#ServiceDiscoveryOperation: --------------- ====== Printing peripheral content ====== ---------------
V/RxBle#ServiceDiscoveryOperation: MAC='XX:XX:XX:XX:XX:XX'
V/RxBle#ServiceDiscoveryOperation: PERIPHERAL NAME: SensorTag
V/RxBle#ServiceDiscoveryOperation: -------------------------------------------------------------------------
V/RxBle#ServiceDiscoveryOperation: Primary Service - Generic Access (00001800-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 1
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Device Name (00002a00-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Appearance (00002a01-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Peripheral Privacy Flag (00002a02-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:  * Reconnection Address (00002a03-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE ]
V/RxBle#ServiceDiscoveryOperation:  * Peripheral Preferred Connection Parameters (00002a04-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation: Primary Service - Generic Attribute (00001801-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 12
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Service Changed (00002a05-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ INDICATE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Device Information (0000180a-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 16
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * System ID (00002a23-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Model Number String (00002a24-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Serial Number String (00002a25-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Firmware Revision String (00002a26-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Hardware Revision String (00002a27-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Software Revision String (00002a28-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * Manufacturer Name String (00002a29-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * IEEE 11073-20601 Regulatory Certification Data List (00002a2a-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:  * PnP ID (00002a50-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa00-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 35
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa01-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa02-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa10-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 43
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa11-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa12-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa13-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa20-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 54
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa21-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa22-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa30-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 62
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa31-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa32-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa33-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa40-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 73
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa41-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa42-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa43-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa50-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 85
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa51-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa52-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (0000ffe0-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 93
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (0000ffe1-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000aa60-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 98
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa61-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000aa62-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000ccc0-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 105
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ccc1-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ READ NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ccc2-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ccc3-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: Primary Service - Unknown service (f000ffc0-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation: Instance ID: 116
V/RxBle#ServiceDiscoveryOperation: -> Characteristics:
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ffc1-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE_NO_RESPONSE WRITE NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:  * Unknown characteristic (f000ffc2-0451-4000-b000-000000000000)
V/RxBle#ServiceDiscoveryOperation:    Properties: [ WRITE_NO_RESPONSE WRITE NOTIFY ]
V/RxBle#ServiceDiscoveryOperation:    -> Descriptors:
V/RxBle#ServiceDiscoveryOperation:      * Client Characteristic Configuration (00002902-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation:      * Characteristic User Description (00002901-0000-1000-8000-00805f9b34fb)
V/RxBle#ServiceDiscoveryOperation: --------------- ====== Finished peripheral content ====== ---------------

括号中提供了特征
UUID
s。您只需要找到您正在寻找的特性。
似乎您知道某些特性的期望值。你怎么知道该期待什么？因为我和设计这个设备的人谈过。你有没有问过他们你应该期待什么样的特性？没有。即使我做了。我应该如何向客户请求特定的特性？他们应该能够给您提供您正在寻找的特性的标识符（UUID）。从那里，它就像使用一样简单
rxbeconnection.readCharacteristic（UUID.fromString（“stringGivenByPeripheralEngineer”）
您似乎知道某些特性的期望值。你怎么知道该期待什么？因为我和设计这个设备的人谈过。你有没有问过他们你应该期待什么样的特性？没有。即使我做了。我应该如何向客户请求特定的特性？他们应该能够给您提供您正在寻找的特性的标识符（UUID）。在那里，它与使用一样简单
rxbeconnection.readCharacteristic（UUID.fromString（“StringGivenTypePreferalEngineer”）
感谢您的宝贵反馈！我很快会调查的。工程师实际上刚刚告诉我以下
我刚刚在设备中尝试了蓝牙模块的微芯片配置工具，加载到模块的文件显示BT3.0 UUID 0x0000。这是一个可编辑字段，因此您应该能够将其更改为您需要的任何内容。
这是否意味着特征UUID是标准的？你能从这些信息中猜出它是什么吗？这是我通过这些日志设置从设备中获得的所有信息：
I/RxBle#Client:ScanResult{bleDevice=RxBleDeviceImpl{MAC='XX:XX:XX:XX'，name=myDevice}，rssi=-47，timestamnos=510459619150822，callbackType=CALLBACK\u TYPE\u ALL\u匹配，scanRecord=[…]}
BT3.0
可能表示这不是一个可扩展设备（从
BT4.0
开始）。我不知道微芯片工具链在这个时候说更多。您可以调整上面的代码，以便
ScanFilter
与您的设备匹配，并记录发现的服务。因此，您可以检查是否有您需要的特征这是我正在使用的板，它支持蓝牙4.2协议：。它是一个双模式设备。但仍不确定所使用的协议版本。如果你愿意连接，按照帖子中提到的进行服务发现，应该可以猜到更多的东西。谢谢你的反馈！我很快会调查的。工程师实际上刚刚告诉我以下
我刚刚在设备中尝试了蓝牙模块的微芯片配置工具，加载到模块的文件显示BT3.0 UUID 0x0000。这是一个可编辑字段，因此您应该能够将其更改为您需要的任何内容。
这是否意味着特征UUID是标准的？你能从这些信息中猜出它是什么吗？这是我通过这些日志设置从设备中获得的所有信息：
I/RxBle#Client:ScanResult{bleDevice=RxBleDeviceImpl{MAC='XX:XX:XX:XX'，name=myDevice}，rssi=-47，timestamnos=510459619150822，callbackType=CALLBACK\u TYPE\u ALL\u匹配，scanRecord=[…]}
BT3.0
可能表示这不是一个可扩展设备（从
BT4.0
开始）。我不知道微芯片工具链在这个时候说更多。您可以调整上面的代码，使
ScanFilter
与您的匹配