Exemple de partage de la façon dont l'applet WeChat implémente Bluetooth-Développement de mini-programmes-php.cn

Exemple de partage de la façon dont l'applet WeChat implémente Bluetooth

黄舟

Libérer： 2018-05-22 16:30:49

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5247 Les gens l'ont consulté

Cet article présente principalement les informations pertinentes sur l'exemple de code d'implémentation de Bluetooth dans l'applet WeChat. Les amis qui en ont besoin peuvent se référer à

L'exemple de code d'implémentation de Bluetooth dans l'applet WeChat<.>

1. Brève description

L'interface de l'adaptateur Bluetooth est prise en charge à partir de la version 1.1.0 de la bibliothèque de base.

Le client iOS WeChat commence à prendre en charge la version 6.5.6, et le client Android ne la prend pas encore en charge
Bluetooth a ajouté un total de 18 interfaces API.

2.Classification API

Catégorie de recherche

Catégorie de connexion
Catégorie de communication

3. Utilisation spécifique de l'API

3. 🎜>

Pour plus de détails, veuillez consulter le site officiel :

https://mp.weixin.qq.com/debug/wxadoc/dev/api/bluetooth.html#wxgetconnectedbluethoothdevicesobject

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4. Mise en œuvre du cas

4.1 Recherche d'appareils Bluetooth

/**
 * 搜索设备界面
 */
Page({
 data: {
  logs: [],
  list:[],
 },
  onLoad: function () {
  console.log(&#39;onLoad&#39;)
var that = this;
// const SDKVersion = wx.getSystemInfoSync().SDKVersion || &#39;1.0.0&#39;
// const [MAJOR, MINOR, PATCH] = SDKVersion.split(&#39;.&#39;).map(Number)
// console.log(SDKVersion);
// console.log(MAJOR);
// console.log(MINOR);
// console.log(PATCH);

// const canIUse = apiName => {
//  if (apiName === &#39;showModal.cancel&#39;) {
//   return MAJOR >= 1 && MINOR >= 1
//  }
//  return true
// }

// wx.showModal({
//  success: function(res) {
//   if (canIUse(&#39;showModal.cancel&#39;)) {
//    console.log(res.cancel)
//   }
//  }
// })
   //获取适配器
   wx.openBluetoothAdapter({
   success: function(res){
    // success
    console.log("-----success----------");
     console.log(res);
     //开始搜索
    wx.startBluetoothDevicesDiscovery({
 services: [],
 success: function(res){
  // success
   console.log("-----startBluetoothDevicesDiscovery--success----------");
   console.log(res);
 },
 fail: function(res) {
  // fail
   console.log(res);
 },
 complete: function(res) {
  // complete
   console.log(res);
 }
})


   },
   fail: function(res) {
     console.log("-----fail----------");
    // fail
     console.log(res);
   },
   complete: function(res) {
    // complete
     console.log("-----complete----------");
     console.log(res);
   }
  })

   wx.getBluetoothDevices({
    success: function(res){
     // success
     //{devices: Array[11], errMsg: "getBluetoothDevices:ok"}
     console.log("getBluetoothDevices");
     console.log(res);
     that.setData({
     list:res.devices
     });
     console.log(that.data.list);
    },
    fail: function(res) {
     // fail
    },
    complete: function(res) {
     // complete
    }
   })

 },
 onShow:function(){


 },
  //点击事件处理
 bindViewTap: function(e) {
   console.log(e.currentTarget.dataset.title);
   console.log(e.currentTarget.dataset.name);
   console.log(e.currentTarget.dataset.advertisData);

  var title = e.currentTarget.dataset.title;
  var name = e.currentTarget.dataset.name;
   wx.redirectTo({
    url: &#39;../conn/conn?deviceId=&#39;+title+&#39;&name=&#39;+name,
    success: function(res){
     // success
    },
    fail: function(res) {
     // fail
    },
    complete: function(res) {
     // complete
    }
   })
 },
})

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4.2 Connectez-vous pour obtenir des données

/**
 * 连接设备。获取数据
 */
Page({
  data: {
    motto: &#39;Hello World&#39;,
    userInfo: {},
    deviceId: &#39;&#39;,
    name: &#39;&#39;,
    serviceId: &#39;&#39;,
    services: [],
    cd20: &#39;&#39;,
    cd01: &#39;&#39;,
    cd02: &#39;&#39;,
    cd03: &#39;&#39;,
    cd04: &#39;&#39;,
    characteristics20: null,
    characteristics01: null,
    characteristics02: null,
    characteristics03: null,
    characteristics04: null,
    result,

  },
  onLoad: function (opt) {
    var that = this;
    console.log("onLoad");
    console.log(&#39;deviceId=&#39; + opt.deviceId);
    console.log(&#39;name=&#39; + opt.name);
    that.setData({ deviceId: opt.deviceId });
    /**
     * 监听设备的连接状态
     */
    wx.onBLEConnectionStateChanged(function (res) {
      console.log(`device ${res.deviceId} state has changed, connected: ${res.connected}`)
    })
    /**
     * 连接设备
     */
    wx.createBLEConnection({
      deviceId: that.data.deviceId,
      success: function (res) {
        // success
        console.log(res);
        /**
         * 连接成功，后开始获取设备的服务列表
         */
        wx.getBLEDeviceServices({
          // 这里的 deviceId 需要在上面的 getBluetoothDevices中获取
          deviceId: that.data.deviceId,
          success: function (res) {
            console.log(&#39;device services:&#39;, res.services)
            that.setData({ services: res.services });
            console.log(&#39;device services:&#39;, that.data.services[1].uuid);
            that.setData({ serviceId: that.data.services[1].uuid });
            console.log(&#39;--------------------------------------&#39;);
            console.log(&#39;device设备的id:&#39;, that.data.deviceId);
            console.log(&#39;device设备的服务id:&#39;, that.data.serviceId);
            /**
             * 延迟3秒，根据服务获取特征 
             */
            setTimeout(function () {
              wx.getBLEDeviceCharacteristics({
                // 这里的 deviceId 需要在上面的 getBluetoothDevices
                deviceId: that.data.deviceId,
                // 这里的 serviceId 需要在上面的 getBLEDeviceServices 接口中获取
                serviceId: that.data.serviceId,
                success: function (res) {
                  console.log(&#39;000000000000&#39; + that.data.serviceId);
                  console.log(&#39;device getBLEDeviceCharacteristics:&#39;, res.characteristics)
                  for (var i = 0; i < 5; i++) {
                    if (res.characteristics[i].uuid.indexOf("cd20") != -1) {
                      that.setData({
                        cd20: res.characteristics[i].uuid,
                        characteristics20: res.characteristics[i]
                      });
                    }
                    if (res.characteristics[i].uuid.indexOf("cd01") != -1) {
                      that.setData({
                        cd01: res.characteristics[i].uuid,
                        characteristics01: res.characteristics[i]
                      });
                    }
                    if (res.characteristics[i].uuid.indexOf("cd02") != -1) {
                      that.setData({
                        cd02: res.characteristics[i].uuid,
                        characteristics02: res.characteristics[i]
                      });
                    } if (res.characteristics[i].uuid.indexOf("cd03") != -1) {
                      that.setData({
                        cd03: res.characteristics[i].uuid,
                        characteristics03: res.characteristics[i]
                      });
                    }
                    if (res.characteristics[i].uuid.indexOf("cd04") != -1) {
                      that.setData({
                        cd04: res.characteristics[i].uuid,
                        characteristics04: res.characteristics[i]
                      });
                    }
                  }
                  console.log(&#39;cd01= &#39; + that.data.cd01 + &#39;cd02= &#39; + that.data.cd02 + &#39;cd03= &#39; + that.data.cd03 + &#39;cd04= &#39; + that.data.cd04 + &#39;cd20= &#39; + that.data.cd20);
                  /**
                   * 回调获取 设备发过来的数据
                   */
                  wx.onBLECharacteristicValueChange(function (characteristic) {
                    console.log(&#39;characteristic value comed:&#39;, characteristic.value)
                    //{value: ArrayBuffer, deviceId: "D8:00:D2:4F:24:17", serviceId: "ba11f08c-5f14-0b0d-1080-007cbe238851-0x600000460240", characteristicId: "0000cd04-0000-1000-8000-00805f9b34fb-0x60800069fb80"}
                    /**
                     * 监听cd04cd04中的结果
                     */
                    if (characteristic.characteristicId.indexOf("cd01") != -1) {
                      const result = characteristic.value;
                      const hex = that.buf2hex(result);
                      console.log(hex);
                    }
                    if (characteristic.characteristicId.indexOf("cd04") != -1) {
                      const result = characteristic.value;
                      const hex = that.buf2hex(result);
                      console.log(hex);
                      that.setData({ result: hex });
                    }

                  })
                  /**
                   * 顺序开发设备特征notifiy
                   */
                  wx.notifyBLECharacteristicValueChanged({
                    deviceId: that.data.deviceId,
                    serviceId: that.data.serviceId,
                    characteristicId: that.data.cd01,
                    state: true,
                    success: function (res) {
                      // success
                      console.log(&#39;notifyBLECharacteristicValueChanged success&#39;, res);
                    },
                    fail: function (res) {
                      // fail
                    },
                    complete: function (res) {
                      // complete
                    }
                  })
                  wx.notifyBLECharacteristicValueChanged({
                    deviceId: that.data.deviceId,
                    serviceId: that.data.serviceId,
                    characteristicId: that.data.cd02,
                    state: true,
                    success: function (res) {
                      // success
                      console.log(&#39;notifyBLECharacteristicValueChanged success&#39;, res);
                    },
                    fail: function (res) {
                      // fail
                    },
                    complete: function (res) {
                      // complete
                    }
                  })
                  wx.notifyBLECharacteristicValueChanged({
                    deviceId: that.data.deviceId,
                    serviceId: that.data.serviceId,
                    characteristicId: that.data.cd03,
                    state: true,
                    success: function (res) {
                      // success
                      console.log(&#39;notifyBLECharacteristicValueChanged success&#39;, res);
                    },
                    fail: function (res) {
                      // fail
                    },
                    complete: function (res) {
                      // complete
                    }
                  })

                  wx.notifyBLECharacteristicValueChanged({
                    // 启用 notify 功能
                    // 这里的 deviceId 需要在上面的 getBluetoothDevices 或 onBluetoothDeviceFound 接口中获取
                    deviceId: that.data.deviceId,
                    serviceId: that.data.serviceId,
                    characteristicId: that.data.cd04,
                    state: true,
                    success: function (res) {
                      console.log(&#39;notifyBLECharacteristicValueChanged success&#39;, res)
                    }
                  })

                }, fail: function (res) {
                  console.log(res);
                }
              })
            }
              , 1500);
          }
        })
      },
      fail: function (res) {
        // fail
      },
      complete: function (res) {
        // complete
      }
    })
  },

  /**
   * 发送 数据到设备中
   */
  bindViewTap: function () {
    var that = this;
    var hex = &#39;AA5504B10000B5&#39;
    var typedArray = new Uint8Array(hex.match(/[\da-f]{2}/gi).map(function (h) {
      return parseInt(h, 16)
    }))
    console.log(typedArray)
    console.log([0xAA, 0x55, 0x04, 0xB1, 0x00, 0x00, 0xB5])
    var buffer1 = typedArray.buffer
    console.log(buffer1)
    wx.writeBLECharacteristicValue({
      deviceId: that.data.deviceId,
      serviceId: that.data.serviceId,
      characteristicId: that.data.cd20,
      value: buffer1,
      success: function (res) {
        // success
        console.log("success 指令发送成功");
        console.log(res);
      },
      fail: function (res) {
        // fail
        console.log(res);
      },
      complete: function (res) {
        // complete
      }
    })

  },
  /**
   * ArrayBuffer 转换为 Hex
   */
  buf2hex: function (buffer) { // buffer is an ArrayBuffer
    return Array.prototype.map.call(new Uint8Array(buffer), x => (&#39;00&#39; + x.toString(16)).slice(-2)).join(&#39;&#39;);
  }
})

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5. Affichage de l'effet