1.test.js
// pages/parking/test/test.js
Page({
/**
* 页面的初始数据
*/
data: {
deviceId: "",//蓝牙设备号
serviceId: '',//设备的service服务
notifyId: '',//监听的值
writeId: '',//用来写入的值
shebei: '',//转化后 设备 命令
lockId: '3CA5090AE608',
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
},
/**
* 结算离场
* 初始化蓝牙
*/
lanyaTap() {
// this.orderPay();
wx.openBluetoothAdapter({
success: (res) => {
console.log('初始化蓝牙成功', res)
this.getBluetoothAdapterState(); // 检测本机蓝牙是否可用
},
fail(err) {
wx.showModal({
content: '请开启手机蓝牙后再试',
});
}
});
},
/**
* 检测本机蓝牙是否可用
*/
getBluetoothAdapterState() {
wx.getBluetoothAdapterState({
success: (res) => {
console.log('检查蓝牙状态成功', res);
this.xialock();
},
fail(res) {
wx.showModal({
content: '本机蓝牙暂不可用，请重新打开手机蓝牙',
});
}
});
},
/** 下锁 转化发送命令*/
xialock() {
var lockid = this.data.lockId;
var equipmentid = '191117184755';
var shebei = this.str_add(equipmentid, 2, ":");
var shebei1 = "10" + ":" + shebei;
var num = shebei1.split(":");
var number = Number(num[0]) + Number(num[1]) + Number(num[2]) + Number(num[3]) + Number(num[4]) + Number(num[5]) + Number(num[6]);
var str = number.toString();
var status = this.strToHexCharCode(str);
var shebeiz = "909010" + equipmentid + status + "9191";
console.log(shebeiz);
this.Setdata("shebei", shebeiz);
// 蓝牙
this.Setdata("deviceId", this.str_add(lockid, 2, ":")) //蓝牙
this.startBluetoothDevicesDiscovery();
},
/* 将 字符串 转成 AA:bb:cc:dd 格式的 字符串*/
str_add: function (str, length, pvalue) {
var re = new RegExp("\\w{1," + length + "}", "g");
var ma = str.match(re);
return ma.join(pvalue);
},
/**
* 开始搜索蓝牙
*/
startBluetoothDevicesDiscovery() {
wx.startBluetoothDevicesDiscovery({
services: [],
success: (res) => {
console.log("开始搜索蓝牙", res);
wx.showLoading({title: '正在搜索设备中...'});
this.onBluetoothDeviceFound();
}
})
},
/**
* 监听搜索蓝牙 list
*/
onBluetoothDeviceFound() {
wx.onBluetoothDeviceFound((res)=> {
console.log("监听搜索蓝牙", res)
var devices = res.devices;
if (devices[0].advertisData != null) {
let bf = devices[0].advertisData.slice(4, 10);
let mac = Array.prototype.map.call(new Uint8Array(bf), x => ('00' + x.toString(16)).slice(-2)).join(':');
if (mac.toUpperCase() == this.data.deviceId) {
this.Setdata("deviceId", devices[0].deviceId)
console.log("监听搜索蓝牙-----toUpperCase", mac.toUpperCase());
console.log('监听搜索蓝牙-----deviceId:' + devices[0].deviceId);
wx.hideLoading();
this.connectblue();
}
}
})
},
/**
* 连接蓝牙
*/
connectblue: function () {
console.log("连接蓝牙---deviceId", this.data.deviceId);
wx.createBLEConnection({
// 这里的 deviceId 需要已经通过 createBLEConnection 与
deviceId:this.data.deviceId,
success: (res) => {
console.log('连接成功', res);
this.ToastShow("连接成功");
this.getservice(); //接设备的service服务
// 关闭蓝牙
setTimeout(function () {
wx.stopBluetoothDevicesDiscovery({
success: function (res) { },
});
wx.offBluetoothDeviceFound({
success: function (res) { },
});
}, 2000);
},
fail: (err) => {
console.log("蓝牙连接失败-------",err)
this.ToastShow("蓝牙连接失败,请重新连接");
},
complete:function(com){
console.log("蓝牙连接----",com)
}
})
},
/**
* 获取连接设备的service服务
*/
getservice: function () {
wx.getBLEDeviceServices({
deviceId: this.data.deviceId,
success: (res) => {
console.log('获取连接设备的service服务', res.services)
this.Setdata("serviceId", res.services[0].uuid);
this.getchara(); // 获取连接设备的所有特征值
}
})
},
/**
* 获取连接设备的所有特征值
*/
getchara: function () {
wx.getBLEDeviceCharacteristics({
deviceId: this.data.deviceId,
serviceId: this.data.serviceId,
success: (res) => {
console.log('获取特征值成功', res);
for (var i = 0; i < res.characteristics.length; i++) { //2个值
if (res.characteristics[i].properties.notify == true) {
this.Setdata("notifyId", res.characteristics[i].uuid) //监听的值
this.startNotice(res.characteristics[i].uuid) //7.0
}
if (res.characteristics[i].properties.write == true) {
this.Setdata("writeId", res.characteristics[i].uuid) //用来写入的值
}
}
},
fail: function (res) {
console.log("获取特征值失败", res);
}
})
},
/* 启用notify */
startNotice(uuid) {
var that = this;
wx.notifyBLECharacteristicValueChange({
state: true, // 启用 notify 功能
deviceId: this.data.deviceId,
serviceId: this.data.serviceId,
characteristicId: this.data.notifyId,
success: (res) => {
console.log("启用 notify 功能成功", res)
// this.sendMy(this.string2buffer('909012191117184755079191'))//8.0 上
// this.sendMy(this.string2buffer('909010191117184755059191')) //8.0 下
this.sendMy(this.string2buffer(this.data.shebei))
wx.onBLECharacteristicValueChange(function (res) {
var nonceId = that.ab2hex(res.value);
console.log("notify监听", res, nonceId)
});
},
fail: function (res) {
console.log(res)
}
})
},
/**
* 将字符串转换成ArrayBufer
*/
string2buffer(str) {
console.log(str);
let val = str;
// 将16进制转化为ArrayBuffer
return new Uint8Array(val.match(/[\da-f]{2}/gi).map(function (h) {
return parseInt(h, 16)
})).buffer
},
// 数字相加的字符串 转16进制
strToHexCharCode(str) {
console.log(str)
if (str === "") return "";
var count = 0;
for (var i = 0; i < str.length; i++) {
var str1 = (str.charCodeAt(i)).toString(16);
count += Number(str1);
}
console.log(count);
return count.toString().slice(1);
},
/**
* 将ArrayBuffer转换成字符串
*/
ab2hex(buffer) {
var hexArr = Array.prototype.map.call(
new Uint8Array(buffer),
function (bit) {
return ('00' + bit.toString(16)).slice(-2)
}
)
return hexArr.join('');
},
/*
* 发送指令
*/
sendMy(buffer) {
console.log("开始写入:" + this.ab2hex(buffer))
console.log(buffer)
wx.writeBLECharacteristicValue({
deviceId: this.data.deviceId,
serviceId: this.data.serviceId,
characteristicId: this.data.writeId,
value: buffer,
success: (res) => {
console.log("发送指令成功", res)
// wx.switchTab({
// url: '/pages/parking/index/index'
// });
},
fail: function (res) {
console.log('写入失败', res)
},
complete: function () {
console.log("调用结束");
}
})
},
//关闭蓝牙模块
closeBluetooth: function () {
var that = this;
wx.closeBluetoothAdapter({
success: function (res) {
console.log("关闭蓝牙成功", res);
}
})
},
/**
* 每当输入 或 选择值的时候 进行的 赋值
*/
Setdata: function (data, value) {
this.setData({
[data]: value,
});
},
/**
* 小黑窗 toast
*/
ToastShow: function (msg) {
wx.showToast({
title: msg,
icon: 'none',
duration: 2000
});
},
})
2.test.wxml
<view bindtap="lanyaTap">蓝牙</view>
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