小程序蓝牙通信模块
// pages/configuration/configuration.js const app = getApp() Page({ /** * 页面的初始数据 */ data: { deviceArr: [], isConnected: false, chs: [], bytes:[] }, /** * 生命周期函数--监听页面加载 */ onLoad: function (options) { let type = '' if(options.type=='wifi'){ type = { name: 'WIFI', isShow: true, isShowPswText: '显示密码', placeholder1: '请输入wifi名称', placeholder2: '请输入wifi密码' }; }else{ type = { name: '手机热点', isShow: true, isShowPswText: '显示密码', placeholder1: '请输入热点名称', placeholder2: '请输入热点密码' } } this.setData({ type:type }) //判断wifi是否连接 wx.getConnectedWifi({ success: function (res) { app.globalData.wifi = res.wifi }, fail: function (res) { app.globalData.wifi = '' } }) //蓝牙使用准备模块======================================================================================================= let that = this; if (app.getPlatform() == 'android' && app.versionCompare('6.5.7', app.getVersion())) { wx.showModal({ title: '提示', content: '当前微信版本过低，请更新至最新版本', showCancel: false }) } else if (app.getPlatform() == 'ios' && app.versionCompare('6.5.6', app.getVersion())) { wx.showModal({ title: '提示', content: '当前微信版本过低，请更新至最新版本', showCancel: false }) } wx.showLoading({ title: '初始化蓝牙' }) this.initBuleTooth() }, /** * 生命周期函数--监听页面初次渲染完成 */ onReady: function () { }, /** * 生命周期函数--监听页面显示 */ onShow: function () { if (app.globalData.wifi){ let wifi = app.globalData.wifi; this.setData({ wifiName: wifi.SSID }) } }, /** * 生命周期函数--监听页面隐藏 */ onHide: function () { }, /** * 生命周期函数--监听页面卸载 */ onUnload: function () { }, /** * 页面相关事件处理函数--监听用户下拉动作 */ onPullDownRefresh: function () { }, /** * 页面上拉触底事件的处理函数 */ onReachBottom: function () { }, /** * 用户点击右上角分享 */ onShareAppMessage: function () { }, showPsw:function(){ let isShow = 'type.isShow'; let ShowPswText = 'type.isShowPswText'; let isShowPswText = this.data.type.isShow ? '隐藏密码' : '显示密码'; this.setData({ [isShow]:!this.data.type.isShow }); this.setData({ [ShowPswText]:isShowPswText }) }, connect:function(){ let that = this; let name = this.data.wifiName; let psw = this.data.psw; if(name && psw){ wx.startWifi({ success(res) { wx.connectWifi({ SSID: name, password: psw, success(res) { wx.showToast({ title: '连接成功！', icon: 'none' }) wx.showLoading({ title: '配网中', }) //组织参数 let param1 = [-86, 1, 2, null, 0]; let param2 = that.stringToBytes(name) let param3 = that.stringToBytes(psw) let param4 = that.stringToBytes(app.globalData.wifi ? app.globalData.wifi.BSSID.replace(/:/g, ''):''); let param5 = that.stringToBytes("5G"); let param6 = [1, 2, 1, 0, 1, 0] let param = that.data.bytes.concat(param1).concat(param2.length).concat(param2).concat(param3.length).concat(param3).concat(param4.length).concat(param4).concat(param5.length).concat(param5).concat(param6); param[3] = param.length //蓝牙配网 that.wirteData(param) }, fail: function (res) { if (res.errCode == 12002) { wx.showToast({ title: '密码错误', icon: 'none' }) } else { wx.showToast({ title: '连接失败，错误码：' + res.errCode, icon: 'none' }) } } }) }, fail: function () { wx.showToast({ title: 'wifi模块初始化失败！', icon: 'none' }) } }) }else{ wx.showToast({ title: '请输入账号密码！', icon:'none' }) } }, getVal:function(e){ let key = e.currentTarget.dataset.value; this.setData({ [key]:e.detail.value }) }, //工具类===================================================================== inArray: function (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 ab2hex: function (buffer) { var hexArr = Array.prototype.map.call( new Uint8Array(buffer), function (bit) { return ('00' + bit.toString(16)).slice(-2) } ) return hexArr.join(''); }, stringToBytes:function(str) { let ch, st, re =[]; for(var i = 0; i<str.length; i++ ) { ch = str.charCodeAt(i); st = []; do { st.push(ch & 0xFF); // push byte to stack ch = ch >> 8; // shift value down by 1 byte } while (ch); re = re.concat(st.reverse()); } return re; }, //蓝牙函数===================================================================== //初始化蓝牙模块 initBuleTooth: function () { let that = this; if (wx.openBluetoothAdapter) { wx.openBluetoothAdapter({ success(res) { that.getBuleTooth() }, fail: function (res) { wx.hideLoading() wx.showToast({ title: '蓝牙模块不可用！', icon: 'none' }) } }) } else { wx.hideLoading() // 如果希望用户在最新版本的客户端上体验您的小程序，可以这样子提示 wx.showModal({ title: '提示', content: '当前微信版本过低，无法使用该功能，请升级到最新微信版本后重试。' }) } }, //开始搜索附近蓝牙设备 getBuleTooth: function (uuid) { let that = this; wx.startBluetoothDevicesDiscovery({ services: (uuid && uuid.length == 0) ? '' : uuid, success: function (res) { that.foundBuleTooth() }, fail: function (res) { wx.showToast({ title: '搜索失败', icon: 'none' }) } }) }, //发现设备 foundBuleTooth: function () { let that = this; let found = false; let timeOut; wx.onBluetoothDeviceFound(function (res) { res.devices.forEach((device) => { let str1 = that.ab2hex(device.advertisData).substr(0,2); let str2 = that.ab2hex(device.advertisData).substr(2,4); let tag = parseInt(str2+str1,16) if (tag == app.globalData.dongleTag){ found = true that.getConnect(device) that.stopBuleTooth() } }) }); timeOut = setTimeout(function () { if (!found) { wx.showToast({ title: '未找到指定设备', icon: 'none' }) } timeOut = null; }, 20000) }, //停止搜索 stopBuleTooth: function () { wx.stopBluetoothDevicesDiscovery({ success(res) { console.log('成功停止搜索') } }) }, //建立连接 getConnect: function (dvs) { let that = this; const ds = dvs; const deviceId = ds.deviceId; const name = ds.name; wx.createBLEConnection({ // 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接 deviceId, success(res) { that.setData({ isConnected: true, connectedDevice: name }) that.getService(deviceId) } }); //that.stopBuleTooth() }, //获取设备所有服务 getService: function (deviceId) { let that = this; wx.getBLEDeviceServices({ deviceId: deviceId, success: function (res) { for (let i = 0; i < res.services.length; i++) { if (res.services[i].isPrimary) { that.getCharacteristic(deviceId, res.services[i].uuid) } } } }) }, //获取蓝牙设备某个服务中所有特征值(characteristic) getCharacteristic: function (deviceId, serviceId) { let that = this; wx.getBLEDeviceCharacteristics({ deviceId, serviceId, success(res) { wx.hideLoading() wx.showToast({ title: '初始化蓝牙成功！', icon: 'none' }); for (let i = 0; i < res.characteristics.length; i++) { let item = res.characteristics[i] if (item.properties.read) { wx.readBLECharacteristicValue({ deviceId, serviceId, characteristicId: item.uuid, }) } if (item.properties.write) { that.setData({ canWrite: true }) that._deviceId = deviceId that._serviceId = serviceId that._characteristicId = item.uuid } if (item.properties.notify || item.properties.indicate) { wx.notifyBLECharacteristicValueChange({ deviceId, serviceId, characteristicId: item.uuid, state: true, }) } } }, fail: function (res) { console.log("获取服务特征值失败，再次获取" + res) that.getCharacteristic(deviceId, serviceId) } }) }, //写数据 wirteData: function (param) { let that = this; let data = new Uint8Array(param); let dataBuffer = data.buffer; wx.writeBLECharacteristicValue({ deviceId: this._deviceId, serviceId: this._serviceId, characteristicId: this._characteristicId, value: dataBuffer, success: function (res) { console.log('成功') console.log(res) }, fail: function (res) { wx.showToast({ title: '写入失败，请重新配网', icon:'none' }) } }) //写入数据之后监听 wx.onBLECharacteristicValueChange((characteristic) => { switch (that.ab2hex(characteristic.value)){ case '42': wx.hideLoading() wx.showToast({ title: '配网成功', icon:'none' }); that.closeBluetoothAdapter() wx.navigateTo({ url: '../finish/finish', }) break; case '0b': break; default: wx.hideLoading() wx.showToast({ title: '配网失败', icon:'none' }) } }) }, //关闭蓝牙 closeBluetoothAdapter() { wx.closeBluetoothAdapter() console.log('关闭蓝牙') } })
具体见https://gitee.com/jiangdaqi/minPro/blob/master/pages/configuration/configuration.js
要注意的是组织参数时，需将字符串变为字节数组
