安卓与HC-05蓝牙模块通信，安卓蓝牙串口通信源码，学会智能家居控制的基础

使用安卓设备通过蓝牙模块控制单片机非常容易做到智能家居等场景的实现，接下来我以安卓开发和HC-05蓝牙模块介绍完整的通信过程以及相关代码实现。

获取相应权限

<uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <!-- 6.0以上需要加的额外权限 -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BROADCAST_STICKY" />
    <uses-feature
        android:name="android.hardware.bluetooth_le"
        android:required="true" />

注册蓝牙广播

IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
        registerReceiver(receiver, filter);
        filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
        registerReceiver(receiver, filter);

注册广播接收者

// 注册广播接收者
    private BroadcastReceiver receiver = new BroadcastReceiver() {
   
        @Override
        public void onReceive(Context arg0, Intent intent) {
   
            // 获取到广播的action
            String action = intent.getAction();
            // 判断广播是搜索到设备还是搜索完成
            if (action