282 lines
8.0 KiB
JavaScript
282 lines
8.0 KiB
JavaScript
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Page({
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data: {
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devices: [],
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isSearching: false,
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status: '未连接',
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connected: false,
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skipCount: 0,
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connectedDeviceId: null,
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deviceServices: [],
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deviceCharacteristics: [],
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blueIsOk:false
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},
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// 1. 初始化蓝牙模块
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startBluetooth() {
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const that = this
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wx.openBluetoothAdapter({
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success: () => {
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// console.log('蓝牙初始化成功');
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this.setData({
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blueIsOk:true
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})
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that.searchDevices() //开始搜索设备
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// wx.showToast({ title: '蓝牙已开启', icon: 'success' });
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},
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fail: (res) => {
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console.error('蓝牙初始化失败', res);
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wx.showModal({
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title: '提示',
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content: '请打开手机蓝牙并授权小程序使用',
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showCancel: false,
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});
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}
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});
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},
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onLoad(){
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this.startBluetooth()
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},
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// 2. 搜索设备
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searchDevices() {
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if(!this.data.blueIsOk) return wx.showModal({
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title: '提示',
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content: '请打开手机蓝牙并授权小程序使用',
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showCancel: false,
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});
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this.setData({ isSearching: true, devices: [] });
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// 启动搜索
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wx.startBluetoothDevicesDiscovery({
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allowDuplicatesKey: false,
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success: () => {
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console.log('开始搜索设备');
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// 监听发现设备事件
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wx.onBluetoothDeviceFound((res) => {
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console.log('发现新设备', res.devices);
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res.devices.forEach(device => {
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if (device.name == 'YD_Jump' || device.name == 'YD-O1' || device.localName == 'YD-O1' || device.localName == 'YD_Jump') {
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const exists = this.data.devices.find(d => d.deviceId === device.deviceId);
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if (!exists) {
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this.setData({
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devices: [...this.data.devices, device]
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});
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}
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}
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});
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});
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},
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fail: (err) => {
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console.error('搜索设备失败', err);
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wx.showToast({ title: '搜索失败', icon: 'error' });
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this.setData({ isSearching: false });
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}
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});
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// 设置超时自动停止
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setTimeout(() => {
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wx.stopBluetoothDevicesDiscovery();
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this.setData({ isSearching: false });
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console.log('停止搜索');
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}, 9000); // 10秒后停止
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},
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// 3. 连接设备
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connectDevice(e) {
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const device = e.currentTarget.dataset.device;
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console.log('尝试连接设备', device);
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wx.showLoading({
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title: '连接中...',
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})
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wx.createBLEConnection({
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deviceId: device.deviceId,
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success: () => {
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console.log('连接成功', device.deviceId);
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wx.showToast({ title: '连接成功', icon: 'success' });
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this.setData({
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status: '已连接',
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connected: true,
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connectedDeviceId: device.deviceId
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});
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wx.setStorageSync('device_id', device.deviceId)
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wx.setStorageSync('device_name', device.name)
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if(device.name == 'YD-O1'){
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wx.setStorageSync('uuid', device.advertisServiceUUIDs[0])
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}else {
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// 获取设备的服务
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wx.getBLEDeviceServices({
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deviceId: device.deviceId,
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success: (res) => {
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console.log('设备服务', res.services);
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wx.setStorageSync('uuid', res.services[0].uuid)
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},
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fail: (err) => {
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console.error('获取服务失败', err);
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}
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});
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}
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},
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fail: (err) => {
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console.error('连接失败', err);
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wx.showToast({ title: '连接失败', icon: 'error' });
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},
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complete:()=>{
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wx.hideLoading()
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}
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});
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},
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// 获取设备的服务
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getDeviceServices(deviceId) {
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wx.getBLEDeviceServices({
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deviceId: deviceId,
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success: (res) => {
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console.log('设备服务', res.services);
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this.setData({
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deviceServices: res.services
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});
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wx.getConnectedBluetoothDevices({
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services:[res.services[0].uuid],
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success:res=>{
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console.log('aaaaa333333===>',res)
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}
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})
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wx.getConnectedBluetoothDevices({
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services:[res.services[1].uuid],
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success:res=>{
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console.log('aaaaa444444===>',res)
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}
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})
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// 获取第一个服务的特征值
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// if (res.services.length > 0) {
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// this.getDeviceCharacteristics(deviceId, res.services[0].uuid);
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// }
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},
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fail: (err) => {
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console.error('获取服务失败', err);
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}
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});
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},
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// 获取第一个服务的特征值
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getDeviceCharacteristics(deviceId, serviceId) {
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wx.getBLEDeviceCharacteristics({
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deviceId: deviceId,
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serviceId: serviceId,
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success: (res) => {
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console.log('服务特征值', res.characteristics);
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this.setData({
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deviceCharacteristics: res.characteristics
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});
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// 启动接收数据通知
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this.startNotify(deviceId, serviceId);
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// 发送启动自由跳绳的命令
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this.startFreeJumpRope(deviceId, serviceId);
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},
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fail: (err) => {
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console.error('获取特征值失败', err);
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}
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});
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},
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// 启动接收数据通知
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startNotify(deviceId, serviceId) {
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const characteristics = this.data.deviceCharacteristics;
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characteristics.forEach(characteristic => {
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if (characteristic.properties.notify) {
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wx.notifyBLECharacteristicValueChange({
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deviceId: deviceId,
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serviceId: serviceId,
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characteristicId: characteristic.uuid,
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state: true,
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success: () => {
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console.log('启动数据通知');
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},
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fail: (err) => {
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console.error('启动通知失败', err);
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}
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});
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// 接收数据
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wx.onBLECharacteristicValueChange((res) => {
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console.log('接收到数据', res.value);
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if (res.deviceId === deviceId && res.characteristicId === characteristic.uuid) {
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console.log('接收到数据', res.value);
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this.handleReceivedData(res.value);
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}
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});
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}
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});
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},
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// 发送启动自由跳绳命令
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startFreeJumpRope(deviceId, serviceId) {
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const command = 3; // 启动自由跳绳的命令
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const code = 1;
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const parameter = 0; // 启动自由跳绳，参数为0
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// 获取蓝牙设备的特征值（特征值应是你已经连接的蓝牙设备的写入特征值）
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const characteristic = this.data.deviceCharacteristics.find(c => c.properties.write);
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if (!characteristic) {
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console.error('没有可写的特征值');
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return;
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}
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// 构建命令数据
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const commandData = new ArrayBuffer(4);
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const dataView = new DataView(commandData);
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dataView.setUint8(0, 0x03);
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dataView.setUint8(1, 0x01);
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dataView.setUint8(2, 0x00);
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dataView.setUint8(3, 0x00);
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// 发送命令到设备
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wx.writeBLECharacteristicValue({
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deviceId: deviceId,
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serviceId: serviceId,
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characteristicId: characteristic.uuid,
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value: commandData,
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success: () => {
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console.log("自由跳绳已启动！");
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},
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fail: (error) => {
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console.error("启动自由跳绳失败", error);
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}
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});
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},
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// 处理接收到的数据
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handleReceivedData(arrayBuffer) {
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// 1. 创建 Int16Array 视图（从 ArrayBuffer 读取）
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const int16Array = new Int16Array(arrayBuffer);
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// 2. 检查长度是否足够（至少 3 个元素）
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if (int16Array.length < 3) {
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console.error("Int16Array length is too short!");
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return;
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}
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// 3. 读取索引 2 的值
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const value = int16Array[2];
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// 4. 更新数据
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this.setData({ skipCount: value });
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},
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// 4. 断开连接
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disconnectDevice() {
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wx.closeBLEConnection({
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deviceId: this.data.connectedDeviceId,
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success: () => {
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console.log('断开连接');
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this.setData({
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status: '未连接',
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connected: false
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});
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}
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});
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}
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});
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