android-bluetooth

I was looking for a possibility to scan a large number of BLE Tags (StickNFind) in a single scan. I have noticed that when I scan for 10 seconds I can detect around 20 BLEs easily. When I increase the scanning interval to around 30 seconds and try to scan a large number of BLE Tags e.g. 200 Tags, I see an error in the LogCat about buffer overflow (GKI_exception). This problem occurs somewhere in the core Android libraries, which I am unable to debug. The exact error log is attached. 11-27 11:39:30.542: D/dalvikvm(1017): GC_CONCURRENT freed 412K, 8% free 9039K/9760K, paused 1ms+1ms, total 16ms

I am developing an app in which I can both find and configure BLE devices. I am using standard Android BLE API, but recently I've encountered some strange problems. When I turn on my app the BLE scan works OK. I am scanning using: mBluetoothAdapter.startLeScan(mLeScanCallback); // for Kitkat and below and mBluetoothAdapter.getBluetoothLeScanner().startScan(mScanCallback); // for Lollipop and above In the Logcat I am getting following messages (I guess this is important for this issue): D/BluetoothAdapter: onClientRegistered() - status=0 clientIf=5 In my app I can also read certain

I currently have a method which writes to the BLE devices to beep it. My Bluetooth Callback goes as follows : ReadCharacteristic rc = new ReadCharacteristic(context, ds.getMacAddress(), serviceUUID, UUID.fromString(myUUID), "") { @Override public void onRead() { Log.w(TAG, "callDevice onRead"); try{Thread.sleep(1000);}catch(InterruptedException ex){} WriteCharacteristic wc = new WriteCharacteristic(activity, context, getMacAddress(), serviceUUID, UUID.fromString(myUUID), ""){ @Override public void onWrite(){ Log.w(TAG, "callDevice onWrite"); } @Override public void onError(){ Log.w(TAG,

I'm here again. So, long story short: in my app I'm trying to receive datas from my BLE device (tickr heart rate monitor: that ) with the help of Android Samples ( that ). But... I'm not receiving datas from my device! I'm able to get the Characteristics and the Descriptor, but... nothing more. I simply.. miss the point . Here's my code: private BluetoothLeService mBluetoothLeService; private ArrayList<BluetoothGattCharacteristic> mGattCharacteristics = new ArrayList<BluetoothGattCharacteristic>(); private BluetoothGattCharacteristic mNotifyCharacteristic; public static final String EXTRAS

I am using " android.bluetooth.headset.action.VENDOR_SPECIFIC_HEADSET_EVENT " intent to get device specific AT commands. But the broadcastreciever didn't fire when I send AT command from MY Bluetooth Kit. When I send AT+CHUP\r from my kit the android work on this command internally and disconnects the call. But when I send AT+XEVENT=foo,3\r from kit but I am not getting any thing in receiver. Help me out I also had a hard time getting the vendor specific headset event to work, but finally figured it out. You have to add the Category of vendor specific events you want to receive to the