你如何解析从Eddystone信标获得的字节和ArrayBuffer？ （具体为TLM数据）

Question

我目前正在创建一个移动应用程序，以检测蓝牙Eddystone信标。我能够使用react-native-ble-manager检测到信标。但是，由于我熟悉数据的格式（可能是缓冲区/字节），因此无法解析数据。我主要需要从信标获取名称空间以及TLM（遥测）数据。这是我的蓝牙代码的当前实现以及我使用react-native-ble-manager获得的数据。

我尝试查看Buffer库进行解析，但无法使其正常工作。

我当前蓝牙代码的一部分

// BLE Manager
const BleManagerModule = NativeModules.BleManager;
const bleManagerEmitter = new NativeEventEmitter(BleManagerModule);

// Bind bluetooth discover method
        this.handleDiscoverPeripheral = this.handleDiscoverPeripheral.bind(this);

// Add Listener
NativeAppEventEmitter.addListener('BleManagerDiscoverPeripheral', this.handleDiscoverPeripheral);

        BleManager.start({ showAlert: false })
            .then(() => {
                // Success code
                console.log('Module initialized');
            });

handleDiscoverPeripheral函数

handleDiscoverPeripheral(peripheral) {
        console.log('Got ble peripheral', peripheral.id);

        let nearbyArr = this.state.sectionData[0].data
        let othersArr = this.state.sectionData[1].data

        if (this.state.participantMap[peripheral.id] !== undefined) {

            let duplicateCheck = nearbyArr.findIndex(function (item) {
                return item.beacon === peripheral.id;
            })

            // console.log('DUP CHECK: ' + duplicateCheck)
            // Check if peripheral has not been added into nearbyArr
            if (duplicateCheck === -1) {
                console.log('Found matching id: ' + peripheral.id)

                let dataBytes = (peripheral.advertising.manufacturerData.bytes)
                console.log(dataBytes)
                let data = String(peripheral.advertising.manufacturerData.data)
                console.log(data)

                let participant = this.state.participantMap[peripheral.id]
                this.setState(state => {
                    const sectionData = state.sectionData
                    const nearbyArr = sectionData[0].data
                    const othersArr = sectionData[1].data
                    nearbyArr.push(participant)
                    othersArr.splice(othersArr.findIndex(function (item) {
                        return item.beacon === peripheral.id;
                    }), 1);

                    return sectionData
                })
            }

        }
    }

整个外围设备的控制台日志

{ advertising:
    { txPowerLevel: -2147483648,
      serviceUUIDs: [ 'feaa' ],
      isConnectable: true,
      manufacturerData:
       { bytes:
          [ 2,
            1,
            6,
            3,
            3,
            170,
            254,
            21,
            22,
            170,
            254,
            0,
            232,
            0,
            17,
            34,
            51,
            68,
            85,
            102,
            119,
            136,
            153,
            171,
            205,
            239,
            231,
            3,
            15,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0,
            0 ],
         data: 'AgEGAwOq/hUWqv4A6AARIjNEVWZ3iJmrze/nAw8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=',
CDVType: 'ArrayBuffer' } },
rssi: -27,
id: 'AC:23:3F:27:1F:E2',
name: null }

我相信我应该根据Eddystone协议规范来解析制造商数据字节和数据，但是我确实对应该如何去做感到困惑。任何帮助将是巨大的！谢谢：）