HM10与Arduino和Android BLE之间的蓝牙低功耗大数据传输

花门楼前见秋草，岂能贫贱相看老。这篇文章主要讲述HM10与Arduino和Android BLE之间的蓝牙低功耗大数据传输相关的知识，希望能为你提供帮助。
在我的android应用程序中接收数据来自HM-10蓝牙低功耗的问题我做了一半。我做的是：从手机发送数据到BLE，我现在成功了，我想从BLE接收数据到我的手机。（Arduino） - > （HM-10 BLE） - > - > -BLE CONNECTION- > - > - （ANDROID APP）所以我从Arduino发送虚拟数据，但我无法在应用程序中收到它。
这是负责将数据从Android发送到BLE模块的类

public class DeviceControlActivity extends Activity { private final static String TAG = DeviceControlActivity.class.getSimpleName(); public static final String DEVICE1_ON = "0"; public static final String DEVICE1_OFF = "1"; public static final String DEVICE2_ON = "2"; public static final String DEVICE2_OFF = "3"; public static final String EXTRAS_DEVICE_NAME = "DEVICE_NAME"; public static final String EXTRAS_DEVICE_ADDRESS = "DEVICE_ADDRESS"; private int[] RGBFrame = {0, 0, 0}; private TextView isSerial; private TextView mConnectionState; private ToggleButton toggle1, toggle2; private String mDeviceName; private String mDeviceAddress; //private ExpandableListView mGattServicesList; private BluetoothLeService mBluetoothLeService; private boolean mConnected = false; private BluetoothGattCharacteristic characteristicTX; private BluetoothGattCharacteristic characteristicRX; public final static UUID HM_RX_TX = UUID.fromString(SampleGattAttributes.HM_RX_TX); private final String LIST_NAME = "NAME"; private final String LIST_UUID = "UUID"; // Code to manage Service lifecycle. private final ServiceConnection mServiceConnection = new ServiceConnection() {@Override public void onServiceConnected(ComponentName componentName, IBinder service) { mBluetoothLeService = ((BluetoothLeService.LocalBinder) service).getService(); if (!mBluetoothLeService.initialize()) { Log.e(TAG, "Unable to initialize Bluetooth"); finish(); } // Automatically connects to the device upon successful start-up initialization. mBluetoothLeService.connect(mDeviceAddress); }@Override public void onServiceDisconnected(ComponentName componentName) { mBluetoothLeService = null; } }; // Handles various events fired by the Service. // ACTION_GATT_CONNECTED: connected to a GATT server. // ACTION_GATT_DISCONNECTED: disconnected from a GATT server. // ACTION_GATT_SERVICES_DISCOVERED: discovered GATT services. // ACTION_DATA_AVAILABLE: received data from the device.This can be a result of read //or notification operations. private final BroadcastReceiver mGattUpdateReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { final String action = intent.getAction(); if (BluetoothLeService.ACTION_GATT_CONNECTED.equals(action)) { mConnected = true; updateConnectionState(R.string.connected); invalidateOptionsMenu(); } else if (BluetoothLeService.ACTION_GATT_DISCONNECTED.equals(action)) { mConnected = false; updateConnectionState(R.string.disconnected); invalidateOptionsMenu(); } else if (BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED.equals(action)) { // Show all the supported services and characteristics on the user interface. displayGattServices(mBluetoothLeService.getSupportedGattServices()); } } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.gatt_services_characteristics); ActionBar bar = getActionBar(); bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#3F51B5"))); Window window = getWindow(); window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); window.setStatusBarColor(this.getResources().getColor(R.color.colorPrimaryDark)); final Intent intent = getIntent(); mDeviceName = intent.getStringExtra(EXTRAS_DEVICE_NAME); mDeviceAddress = intent.getStringExtra(EXTRAS_DEVICE_ADDRESS); // Sets up UI references. ((TextView) findViewById(R.id.device_address)).setText(mDeviceAddress); mConnectionState = (TextView) findViewById(R.id.connection_state); // is serial present? isSerial = (TextView) findViewById(R.id.isSerial); getActionBar().setTitle(mDeviceName); getActionBar().setDisplayHomeAsUpEnabled(true); Intent gattServiceIntent = new Intent(this, BluetoothLeService.class); bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE); toggle1 = (ToggleButton) findViewById(R.id.toggleButton1); toggle1.setText(null); toggle1.setTextOn(null); toggle1.setTextOff(null); toggle2 = (ToggleButton) findViewById(R.id.toggleButton2); toggle2.setText(null); toggle2.setTextOn(null); toggle2.setTextOff(null); toggle1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { sendDataToBLE("BASHA1"); //DEVICE1_ON); toggle1.setBackgroundResource(R.drawable.light1); } else { sendDataToBLE("BASHA2"); //DEVICE1_OFF); toggle1.setBackgroundResource(R.drawable.light0); } } }); toggle2.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { sendDataToBLE(DEVICE2_ON); toggle2.setBackgroundResource(R.drawable.fan1); } else { sendDataToBLE(DEVICE2_OFF); toggle2.setBackgroundResource(R.drawable.fan0); } } }); }void sendDataToBLE(String str) { Log.d(TAG, "Sending result=" + str); final byte[] tx = str.getBytes(); if (mConnected) { characteristicTX.setValue(tx); mBluetoothLeService.writeCharacteristic(characteristicTX); mBluetoothLeService.setCharacteristicNotification(characteristicRX, true); } }@Override protected void onResume() { super.onResume(); registerReceiver(mGattUpdateReceiver, makeGattUpdateIntentFilter()); if (mBluetoothLeService != null) { final boolean result = mBluetoothLeService.connect(mDeviceAddress); Log.d(TAG, "Connect request result=" + result); } }@Override protected void onPause() { super.onPause(); unregisterReceiver(mGattUpdateReceiver); }@Override protected void onDestroy() { super.onDestroy(); unbindService(mServiceConnection); mBluetoothLeService = null; }@Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.gatt_services, menu); if (mConnected) { menu.findItem(R.id.menu_connect).setVisible(false); menu.findItem(R.id.menu_disconnect).setVisible(true); } else { menu.findItem(R.id.menu_connect).setVisible(true); menu.findItem(R.id.menu_disconnect).setVisible(false); } return true; }@Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_connect: mBluetoothLeService.connect(mDeviceAddress); return true; case R.id.menu_disconnect: mBluetoothLeService.disconnect(); return true; case android.R.id.home: onBackPressed(); return true; } return super.onOptionsItemSelected(item); }private void updateConnectionState(final int resourceId) { runOnUiThread(new Runnable() { @Override public void run() { mConnectionState.setText(resourceId); } }); }// Demonstrates how to iterate through the supported GATT Services/Characteristics. // In this sample, we populate the data structure that is bound to the ExpandableListView // on the UI. private void displayGattServices(List< BluetoothGattService> gattServices) { if (gattServices == null) return; String uuid = null; String unknownServiceString = getResources().getString(R.string.unknown_service); ArrayList< HashMap< String, String> > gattServiceData = https://www.songbingjia.com/android/new ArrayList< HashMap< String, String> > (); // Loops through available GATT Services. for (BluetoothGattService gattService : gattServices) { HashMap< String, String> currentServiceData = new HashMap< String, String> (); uuid = gattService.getUuid().toString(); currentServiceData.put( LIST_NAME, SampleGattAttributes.lookup(uuid, unknownServiceString)); // If the service exists for HM 10 Serial, say so. if (SampleGattAttributes.lookup(uuid, unknownServiceString) =="HM-10 Serial") { isSerial.setText("Yes"); } else { isSerial.setText("No"); } currentServiceData.put(LIST_UUID, uuid); gattServiceData.add(currentServiceData); // get characteristic when UUID matches RX/TX UUID characteristicTX = gattService.getCharacteristic(BluetoothLeService.UUID_HM_RX_TX); characteristicRX = gattService.getCharacteristic(BluetoothLeService.UUID_HM_RX_TX); }}private static IntentFilter makeGattUpdateIntentFilter() { final IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(BluetoothLeService.ACTION_GATT_CONNECTED); intentFilter.addAction(BluetoothLeService.ACTION_GATT_DISCONNECTED); intentFilter.addAction(BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED); intentFilter.addAction(BluetoothLeService.ACTION_DATA_AVAILABLE); return intentFilter; } }

答案问题是调用onReceive方法并且永远不会从BroadcastReceiver获取数据所以我已经添加到BroadcastReceiver中的onReceive方法：

else if (BluetoothLeService.ACTION_DATA_AVAILABLE.equals(action)) { String value = https://www.songbingjia.com/android/intent.getStringExtra(BluetoothLeService.EXTRA_DATA); if(value != null){ displayData(value); Log.e("data = "https://www.songbingjia.com/android/,value.toString()); } else{ Log.e(TAG,"value = https://www.songbingjia.com/android/null"); }

【HM10与Arduino和Android BLE之间的蓝牙低功耗大数据传输】完整工作代码的链接：https://github.com/Waged/BLEArduino