/**
* html+ 串口藍牙操作
*/
function BluetoothTool() {
let BluetoothAdapter = plus.android.importClass("android.bluetooth.BluetoothAdapter");
let Intent = plus.android.importClass("android.content.Intent");
let IntentFilter = plus.android.importClass("android.content.IntentFilter");
let BluetoothDevice = plus.android.importClass("android.bluetooth.BluetoothDevice");
let UUID = plus.android.importClass("java.util.UUID");
let Toast = plus.android.importClass("android.widget.Toast");
//連接串口設備的 UUID
let MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
let invoke = plus.android.invoke;
let btAdapter = BluetoothAdapter.getDefaultAdapter();
let activity = plus.android.runtimeMainActivity();
let btSocket = null;
let btInStream = null;
let btOutStream = null;
let setIntervalId = 0;
let btFindRecei