微信小程序使用蓝牙小插件

function BLE(options) {
 this.optiOns= options || { locator: {} };
}

function ab2hex(buffer) {
 const hexArr = Array.prototype.map.call(
  new Uint8Array(buffer),
  function (bit) {
   return ('00' + bit.toString(16)).slice(-2)
  }
 )
 return hexArr.join('-')
};

BLE.prototype = {
 open: function (callback) {//打开适配器 成功 调用callback();
  wx.openBluetoothAdapter({
   success(res) {
    if (typeof callback != "undefined") {
     callback();
    }
   },
   fail(res) {
    console.log(res)
   }
  })
 },
 scan: function (callback) {//扫描设备 成功 调用callback(ls);
  wx.startBluetoothDevicesDiscovery({
   success(res) {
    wx.getBluetoothDevices({
     success(res) {
      console.log(res);
      var ls = [];
      for (var i = 0; i 

const Ble = require('../../lib/bluetooch/bluetooch');
var ble = new Ble.BLE();