Cordova Android 插件 cordova-plugin-ble-central > 从设备 BLE-9909 Meter 读取数据时出错

Question

我正在使用 cordova-plugin-ble-central 为 Android 构建一个 cordova 应用程序，用于从由 YINMIK 提供支持的设备 BLE-9909 Meter 读取数据。 除了读取数据外，扫描和连接插件都很好。我收到以下错误。你能提供一个方向吗？谢谢。

注意： 读取电池服务 0x180F/特性 0x2A19 适用于 Android，但服务 FF01/特性 FF02 除外。 BLE 浏览器不会出现此问题。

D/BLEPlugin: action = isConnected
D/BLEPlugin: action = read
D/Peripheral: Queuing Command com.megster.cordova.ble.central.BLECommand@ca43bed
D/Peripheral: Processing Commands
D/Peripheral: Read 0000ff02-0000-1000-8000-00805f9b34fb
D/Peripheral: onCharacteristicRead android.bluetooth.BluetoothGattCharacteristic@cb961e5
D/Peripheral: Processing Complete
D/Peripheral: Processing Commands
D/Peripheral: Command Queue is empty.

I/chromium: [INFO:CONSOLE(478)] "Error reading 0000ff02-0000-1000-8000-00805f9b34fb status=133"

这里是代码片段：

ble.startNotification(
  deviceId,
  'FF01',
  'FF02',
  (buffer) => {
    this.decodeDataFromBLE9909Sensor(buffer, callback);
  },
  (err) => {
    console.error(err);
  }
);

和设备文档：

Bluetooth communication protocol                                                

Basic Information                                               
1   Bluetooth name: BLE-9100    i.e. product name(BLE-9100,BLE-Ph01,BLE-9909,…)                                 
2   Service UUID    FF01                                        
3   Feature UUID    FF02    read and write                                  

read data                                               
1   After the Bluetooth connection is successful, subscribe to the characteristic UUID FF02,                                            
2   Read the characteristic UUID FF02 to return the data