本文主要介绍了微信小程序--ble蓝牙的实现方法。文中附上源码下载，具有很好的参考价值。下面跟着小编一起来看下吧
有一段时间没有。没有写关于小程序的文章了。3月28日，微信的api又一次新的更新。期待已久的蓝牙api更新。就开始撸一番。
源码地址
1.简述
蓝牙适配器接口是基础库版本 1.1.0 开始支持。
iOS 微信客户端 6.5.6 版本开始支持，Android 客户端暂不支持
蓝牙总共增加了18个api接口。
2.Api分类
搜索类
连接类
通信类
3.API的具体使用
详细见官网：
https://mp.weixin.qq.com/debug/wxadoc/dev/api/bluetooth.html#wxgetconnectedbluethoothdevicesobject
4. 案例实现
4.1 搜索蓝牙设备
/**
* 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
})4.2连接 获取数据
/**
* 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 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;);
})5.效果展示
发送校验指令。获取结果
以上就是微信小程序--Ble蓝牙的详细内容，更多请关注php中文网其它相关文章！
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