ElinkThings_miniAppSDKDemo/BM16His_demo/pages/index/index.js

// const plugin = requirePlugin("myPlugin").AiFresh;

const {BM16His: plugin} = requirePlugin("sdkPlugin");

function inArray(arr, key, val) {
  for (let i = 0; i < arr.length; i++) {
    if (arr[i][key] === val) {
      return i;
    }
  }
  return -1;
}

// ArrayBuffer转16进度字符串示例
function ab2hex(buffer) {
  var hexArr = Array.prototype.map.call(
    new Uint8Array(buffer),
    function (bit) {
      return ('00' + bit.toString(16)).slice(-2)
    }
  )
  return hexArr.join(',');
}
// var information = []
Page({
  data: {
    devices: [],
    mac: "",
    connected: false,
    text: "",
    unitList_all: ['g', 'ml', 'lb:oz', 'oz', 'kg', '斤', '牛奶 ml', '水 ml', '牛奶 floz', '水 floz', 'lb'],
    unitList: ['g', 'ml', 'lb:oz', 'oz'],
    weight: 0,
    unit: 'g',
    unitIndex: 0,
    min: 0,
    second: 0,
    showWriteInput: false,
    connected: false,
    chs: [],
    cmd: '',
    name: '',
    deviceId: null,
    historyList: [],
    height:0,
    information:[],
  },
  onLoad: function () {
    let screenHeight = wx.getSystemInfoSync().windowHeight;

    this.setData({
      height: screenHeight - 344,
    });
  },
  clearDevices() {
    this.setData({
      devices: []
    })
    this.closeBluetoothAdapter()
    wx.nextTick(()=>{
      this.openBluetoothAdapter()
    })
  },
  // 初始化蓝牙模块
  openBluetoothAdapter() {
    wx.openBluetoothAdapter({
      success: (res) => {
        console.log('openBluetoothAdapter success', res)
        this.startBluetoothDevicesDiscovery()
      },
      fail: (res) => {
        if (res.errCode === 10001) {
          wx.showToast({
            title: '请打开蓝牙',
            icon: "none"
          })
          wx.onBluetoothAdapterStateChange(function (res) {
            console.log('onBluetoothAdapterStateChange', res)
            if (res.available) {
              this.startBluetoothDevicesDiscovery()
            }
          })
        }
      }
    })
  },
     // 获取本机蓝牙适配器状态
  getBluetoothAdapterState() {
    wx.getBluetoothAdapterState({
      success: (res) => {
        console.log('getBluetoothAdapterState', res)
        if (res.discovering) {
          this.onBluetoothDeviceFound()
        } else if (res.available) {
          this.startBluetoothDevicesDiscovery()
        }
      }
    })
  },
  // 开始搜寻附近的蓝牙外围设备
  startBluetoothDevicesDiscovery() {
    if (this._discoveryStarted) {
      return
    }
    this._discoveryStarted = true
    wx.startBluetoothDevicesDiscovery({
      allowDuplicatesKey: true,
      services: [
        "FFE0",
        "F0A0", // BM30广播模块需加上，如使用连接模块可忽略
      ],
      powerLevel: 'high',
      success: (res) => {
        console.log('startBluetoothDevicesDiscovery success', res)
        this.onBluetoothDeviceFound()
      },
    })
  },
  // 停止搜寻附近的蓝牙外围设备
  stopBluetoothDevicesDiscovery() {
    wx.stopBluetoothDevicesDiscovery()
  },

  // 监听寻找到新设备的事件
  onBluetoothDeviceFound() {
    wx.onBluetoothDeviceFound((res) => {
        console.log('res',res);
      res.devices.forEach(device => {
        if (!device.name && !device.localName) {
          return
        }
        const foundDevices = this.data.devices
        console.log('foundDevices',foundDevices);
        const idx = inArray(foundDevices, 'deviceId', device.deviceId)
        let advertisDatas = ab2hex(device.advertisData).split(',').toString()
        let index = advertisDatas.indexOf('6e,49')
        let cid = advertisDatas[index + 9] + advertisDatas[index + 10]
        const data = {}
        // console.log(device)
        // console.log(ab2hex(device.advertisData))
        // 此处判断是否BM30广播模块，如使用连接模块请删除此 if ，只保留 else 内容
        if (cid == 14 ||cid == '0e') {
        if (device.advertisServiceUUIDs[0].indexOf("F0A0") !== -1) {
          let parseDataRes = plugin.parseBroadcastData(device.advertisData)
          // console.log(parseDataRes)
          if (parseDataRes.status == 1) {
            let analyzeData = plugin.analyzeBroadcastScaleData(parseDataRes)
            device.analyzeDataText = analyzeData.text
            console.log(analyzeData.data.weight)
          }
        } else {
          let buff = device.advertisData.slice(8, 14)
          device.mac = new Uint8Array(buff) // 保存广播数据中的mac地址，这是由于iOS不直接返回mac地址
          let tempMac = Array.from(device.mac)
          tempMac.reverse()
          device.macAddr = ab2hex(tempMac, ':').toUpperCase()
        }
        if (idx === -1) {
          data[`devices[${foundDevices.length}]`] = device
        } else {
          data[`devices[${idx}]`] = device
        }
        this.setData(data)
      }
      })
   
    })
  },
  // 连接低功耗蓝牙设备
  createBLEConnection(e) {
    this._connLoading = true
    wx.showLoading({
      title: '连接中',
    })
    setTimeout(() => {
      if (this._connLoading) {
        this._connLoading = false
        wx.hideLoading()
      }
    }, 6000)
    const ds = e.currentTarget.dataset
    const index = ds.index
    // 保存当前连接的设备，注意不能从wxml的dataset中直接返回该对象，因为ArrarBuffer类型的数据无法保留
    const deviceId = ds.deviceId
    const name = ds.name
    this._device = this.data.devices[index]
    console.log(this._device)
    wx.createBLEConnection({
      deviceId,
      success: (res) => {
       // console.log('this._device',this._device);
        let buff = this._device.advertisData.slice(-6)
        let arr = new Uint8Array(buff).reverse()
        let mac = ab2hex(arr).replace(/,/g,":")
      //  console.log('mac',mac);
        this.setData({
          connected: true,
          name,
          deviceId,
          mac
        })
        console.log("createBLEConnection:success")
        this.log('蓝牙连接成功！')
        wx.stopBluetoothDevicesDiscovery()
        this.onBLEConnectionStateChange()
        this.getBLEDeviceServices(deviceId)
      },
      fail: res => {
        this._connLoading = false
        wx.hideLoading()
        wx.showToast({
          title: '连接失败',
          icon: 'none'
        })
      }
    })
    // 连接上设备就可以停止蓝牙搜索，减少功耗。
    this.stopBluetoothDevicesDiscovery()
  },

  onBLEConnectionStateChange() {
    wx.onBLEConnectionStateChange((res) => {
      console.log('wx.onBLEConnectionStateChange() ', res.deviceId, res.connected, res.errorCode, res.errorMsg)
      // 该方法回调中可以用于处理连接意外断开等异常情况
      // console.log(`%c device ${res.deviceId} state has changed, connected: ${res.connected}`, 'color: #F26363')
      if (!res.connected) {
        wx.showToast({
          title: '连接已断开',
          icon: 'none'
        })
        this.log(this.data.mac + '蓝牙已断开连接....')
        this.setData({
          showWriteInput: false,
        })
      }
    })
  },

  // 断开与低功耗蓝牙设备的连接
  closeBLEConnection() {
    wx.closeBLEConnection({
      deviceId: this._deviceId
    })
    this.log(this.data.mac + '蓝牙已断开连接....')
    this.setData({
      showWriteInput: false,
    })
  },
  quit(){
    this.closeBLEConnection()
    this.setData({
      connected: false,
      information:[]
    })
  },
  // 获取蓝牙设备的 serviceId
  getBLEDeviceServices(deviceId) {
    wx.getBLEDeviceServices({
      deviceId,
      success: (res) => {
        for (let i = 0; i < res.services.length; i++) {
          if (res.services[i].isPrimary && res.services[i].uuid.indexOf('FFE0') > -1) {
            this.getBLEDeviceCharacteristics(deviceId, res.services[i].uuid)
            return
          }
        }
      }
    })
  },

  // 获取蓝牙设备某个服务中所有特征值(characteristic)
  getBLEDeviceCharacteristics(deviceId, serviceId) {
    this._deviceId = deviceId
    this._serviceId = serviceId
    this._device.serviceId = serviceId

    wx.getBLEDeviceCharacteristics({
      deviceId,
      serviceId,
      success: (res) => {
        console.log('getBLEDeviceCharacteristics success', res.characteristics)

        console.log('plugin',plugin);
        // 初始化插件
        plugin.initPlugin(res.characteristics, this._device)

        wx.onBLECharacteristicValueChange((characteristic) => {
          // 解析特征值，返回解密后的数据
          let bleData = plugin.parseBleData(characteristic.value)
          console.log(bleData)
          if (bleData.status == 0) {
            console.log("握手成功")
            this._connLoading = false
            wx.hideLoading()
            wx.showToast({
              title: '连接成功',
            })
          } else if (bleData.status == 2) {
            let payload = bleData.data //对应协议中的payload数据，可以自行解析该数据
            // console.log(ab2hex(payload, ' '))
            // console.log(ab2hex(bleData.completeData, ' '))
            switch (payload[0]) {
              case 0x1B:
                if (payload[1] == 0) {
                  this.log('设置系统时间成功')
                }else if (payload[1] == 1) {
                  this.log('设置系统时间失败')
                }else{
                  this.log('系统不支持时间设置')
                }
                break;
              case 0x1C:
                if (payload[1] == 1) {
                  let {year,month,day,hour,min,second} = plugin.analyzeSystemTime(payload)
                  this.log(`系统时间为：${year}/${month}/${day}  ${hour}:${min}:${second}`)
                } else {
                  this.log('系统时间无效')
                }
                break;
              case 0x2B:
                if (payload[1] == 0x05) {
                  if (payload[2] == 0) {
                    this.log('无用户历史记录')
                  } else if(payload[2] == 1) {
                    this.log('开始发送历史记录')
                  }else{
                    this.log('结束发送历史记录')
                  }
                }
                if (payload[1] == 0x06) {
                  if (payload[2] == 0x01) {
                    plugin.analyzeMCUBodyData(payload)
                  } else if (payload[2] == 0x02){
                     plugin.analyzeMCUBodyData(payload)
                  }else if (payload[2] == 0x03) {
                    let { year,month,day,hour,min,second,id,userCharacteristics,sex,age,height,weight,metabolicBasisRate,bodyAge ,uint,symbol,impedance,compute,bodyFat,subcutaneousFat,visceralFat,musclesRate,boneMass,waterContent,proteinRate,heartRate } = plugin.analyzeMCUBodyData(payload)
                    this.log(`时间为：${year}/${month}/${day}  ${hour}:${min}:${second} 
                    id：${id} 用户特征：${userCharacteristics},性别：${sex}，年龄：${age}，身高：${height},
                    体重：${weight},单前单位：${uint},重量数据精度：${symbol},阻抗：${impedance},
                    心率数据：${heartRate},体脂：${bodyFat},皮下脂肪：${subcutaneousFat}
                    ,内脏脂肪：${visceralFat},肌肉率：${musclesRate},基础代谢率：${metabolicBasisRate},
                    骨量：${boneMass},水含量：${waterContent},蛋白率：${proteinRate},身体年龄：${bodyAge}`)
                  }
                  }
                  
                if (payload[1] == 0x07) {
                  if (payload[2] == 0x01) {
                    plugin.analyzeAPPBodyData(payload)
                  } else if (payload[2] == 0x02){
                    let { year,month,day,hour,min,second,id,userCharacteristics,sex,age,height,weight,uint,symbol,impedance,compute,heartRate } = plugin.analyzeAPPBodyData(payload)
                    this.log(`时间为：${year}/${month}/${day}  ${hour}:${min}:${second} 
                    id：${id} 用户特征：${userCharacteristics},性别：${sex}，年龄：${age}，身高：${height},
                    体重：${weight},单前单位：${uint},重量数据精度：${symbol},阻抗：${impedance},
                    算法标识：${compute},心率数据：${heartRate}`)
                  }
                }
                if (payload[1] == 0x04) {
                  if (payload[2] == 0) {
                    this.log('更新列表成功')
                  } else if(payload[2] == 1){
                    this.log('更新个人用户成功')
                  }else if(payload[2] == 2){
                    this.log('更新列表失败')
                  }else if(payload[2] == 3){
                    this.log('更新个人用户失败')
                  }else{
                    this.log('未知指令')
                  }
                } 
              }
          } else if (bleData.status == 1){
          } 
        })
        },
      fail(res) {
        console.error('getBLEDeviceCharacteristics', res)
      }
    })
  },
  log(data){
    let info = this.data.information 
    info.unshift(data)
    this.setData({
      information:info
    })
  },
  writeBLECharacteristicValue(buffer, uuid, deviceId, serviceId) {
    // 向蓝牙设备发送一个二进制流数据
    wx.writeBLECharacteristicValue({
      deviceId,
      serviceId,
      characteristicId: uuid,
      value: buffer,
      success(res) {
        console.log('writeBLECharacteristicValue success', res)
        console.log('下发指令==> ' + ab2hex(buffer))
      }
    })
  },
  closeBluetoothAdapter() {
    wx.closeBluetoothAdapter()
    this._discoveryStarted = false
  },
  setSystemTime(){
   // console.log('设置时间');
    plugin.setSystemTime()
  },
  getSystemTime(){
   // console.log('获取时间');
    plugin.getSystemTime()
  },
  updateUserList(){
   // console.log('更新用户列表');
   let userInfo = { identity:0,id:7,sex:1,age:21,height:176,weight:77.5,impedance:450}
   let userInfo1 = { identity:1,id:2,sex:0,age:29,height:162,weight:66.1,impedance:420 }
   let userInfo2 = { identity:0,id:1,sex:1,age:22,height:168,weight:71.1,impedance:430 }
   let userList = []
   userList.push(userInfo)
   userList.push(userInfo1)
   userList.push(userInfo2)
   plugin.updateUserList(userList)
  },
  updateUserInformation(){
    //console.log('更新用户个人信息');
    let userInfo ={ identity:0,id:7,sex:1,age:21,height:176,weight:77.5,impedance:450}
    plugin.updateUserInformation(userInfo)
  },
  requestHis(){
    plugin.requestHis()
  }
});