bluetooth-lowenergy

I am trying to get a BLE advertisement callback from a .NET Windows desktop application. I am able to call into the APIs, however the Received event is never called from the OS in a WPF or Command line application. I do get events when the code is called from a Unit Test in VS2015, or universal Windows app. However, I need to do other things not available in universal Windows. Here is the code: using Windows.Devices.Bluetooth.Advertisement; public static void ScanForAdvertisments() { mWatcher = new BluetoothLEAdvertisementWatcher(); mWatcher.Received += OnAdvertismentReceived; mWatcher

With a normal Characteristics Read only the MTU Size (20bytes) of data will be read. My customer will offer a characteristics with a larger size (about 100bytes). I saw that BLE offers a "Long Read" feature which reads until the size of the characteristics is reached. ( https://bluegiga.zendesk.com/entries/25053373--REFERENCE-BLE-master-slave-GATT-client-server-and-data-RX-TX-basics ) attclient_read_long command - Starts a procedure where the client first sends normal read request to the server, and if the server returns an attribute value with a length equal to the BLE MTU (22 bytes), then

I am trying to read/write these ble characteristics: Right now, I'm trying to read AA01* I am using this library to do it. Here's my code: private void connectToSensorTag(RxBleDevice rxBleDevice) { rxBleDevice.establishConnection(getApplicationContext(), false) .doOnError(new Action1<Throwable>() { @Override public void call(Throwable throwable) { int i = 0; } }) .flatMap(rxBleConnection -> rxBleConnection.readCharacteristic(UUID.fromString("AA01*"))) .subscribe(new Subscriber<byte[]>() { @Override public void onCompleted() { int i = 0; } @Override public void onError(Throwable e) { int i = 0;

I would like to know whether it is possible to check in the background if someone enters or leaves the a beacon Region? In iOS for example you can use the methods didEnterRegion or didExitRegion to send notifications from the background. Is there any native possibility or has someone a workaround? Android doesn't have any "native" iBeacon capability at all, but you can see iBeacons using my company's open source Android iBeacon Library , which has APIs similar to those native to iOS 7. In the case of iOS, the CLLocationManagerDelegate gives you access to the didEnterRegion and didExitRegion

I have an Android app from which I receive BLE data (every 62ms via notifications). The app can save data via a BufferedWriter to a file. Upon each onCharacteristicChanged() callback, I call either an AsyncTask, Thread or an IntentService to do a file write if the user enabled file save. The AsyncTask seems to work fine. But the docs say execute must be invoked on the UI thread, and I'm calling it from the BLE callback. Is that a problem? And how should I fix it? Using Thread causes this error: GKI_exception out of buffers https://code.google.com/p/android/issues/detail?id=65455 (except my