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Diffstat (limited to 'examples/java/HelloTinyB.java')
| -rw-r--r-- | examples/java/HelloTinyB.java | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/examples/java/HelloTinyB.java b/examples/java/HelloTinyB.java deleted file mode 100644 index 54e991a7..00000000 --- a/examples/java/HelloTinyB.java +++ /dev/null @@ -1,247 +0,0 @@ -import java.lang.reflect.InvocationTargetException; -import java.util.List; -import java.util.concurrent.TimeUnit; -import java.util.concurrent.locks.Condition; -import java.util.concurrent.locks.Lock; -import java.util.concurrent.locks.ReentrantLock; - -import org.direct_bt.BDAddressAndType; -import org.direct_bt.BDAddressType; -import org.direct_bt.BTDevice; -import org.direct_bt.BTException; -import org.direct_bt.BTFactory; -import org.direct_bt.BTGattChar; -import org.direct_bt.BTGattService; -import org.direct_bt.BTManager; -import org.direct_bt.EUI48; -import org.direct_bt.HCIStatusCode; - -public class HelloTinyB { - static boolean running = true; - - static void printDevice(final BTDevice device) { - System.out.print("Address = " + device.getAddressAndType()); - System.out.print(" Name = " + device.getName()); - System.out.print(" Connected = " + device.getConnected()); - System.out.println(); - } - - static float convertCelsius(final int raw) { - return raw / 128f; - } - - /* - * After discovery is started, new devices will be detected. We can get a list of all devices through the manager's - * getDevices method. We can the look through the list of devices to find the device with the MAC which we provided - * as a parameter. We continue looking until we find it, or we try 15 times (1 minutes). - */ - static BTDevice getDevice(final BTManager manager, final BDAddressAndType addressAndType) throws InterruptedException { - BTDevice sensor = null; - for (int i = 0; (i < 15) && running; ++i) { - final List<BTDevice> list = manager.getDevices(); - if (list == null) - return null; - - for (final BTDevice device : list) { - printDevice(device); - /* - * Here we check if the address matches. - */ - if (device.getAddressAndType().matches(addressAndType)) { - sensor = device; - } - } - - if (sensor != null) { - return sensor; - } - Thread.sleep(4000); - } - return null; - } - - /* - * Our device should expose a temperature service, which has a UUID we can find out from the data sheet. The service - * description of the SensorTag can be found here: - * http://processors.wiki.ti.com/images/a/a8/BLE_SensorTag_GATT_Server.pdf. The service we are looking for has the - * short UUID AA00 which we insert into the TI Base UUID: f000XXXX-0451-4000-b000-000000000000 - */ - static BTGattService getService(final BTDevice device, final String UUID) throws InterruptedException { - System.out.println("Services exposed by device:"); - BTGattService tempService = null; - List<BTGattService> bluetoothServices = null; - do { - bluetoothServices = device.getServices(); - if (bluetoothServices == null) - return null; - - for (final BTGattService service : bluetoothServices) { - System.out.println("UUID: " + service.getUUID()); - if (service.getUUID().equals(UUID)) - tempService = service; - } - Thread.sleep(4000); - } while (bluetoothServices.isEmpty() && running); - return tempService; - } - - static BTGattChar getCharacteristic(final BTGattService service, final String UUID) { - final List<BTGattChar> characteristics = service.getChars(); - if (characteristics == null) - return null; - - for (final BTGattChar characteristic : characteristics) { - if (characteristic.getUUID().equals(UUID)) - return characteristic; - } - return null; - } - - /* - * This program connects to a TI SensorTag 2.0 and reads the temperature characteristic exposed by the device over - * Bluetooth Low Energy. The parameter provided to the program should be the MAC address of the device. - * - * A wiki describing the sensor is found here: http://processors.wiki.ti.com/index.php/CC2650_SensorTag_User's_Guide - * - * The API used in this example is based on TinyB v0.3, which only supports polling, but v0.4 will introduce a - * simplied API for discovering devices and services. - */ - public static void main(final String[] args) throws InterruptedException { - - if (args.length < 1) { - System.err.println("Run with <device_address> argument"); - System.exit(-1); - } - - /* - * To start looking of the device, we first must initialize the TinyB library. The way of interacting with the - * library is through the BluetoothManager. There can be only one BluetoothManager at one time, and the - * reference to it is obtained through the getBluetoothManager method. - */ - final BTManager manager; - try { - manager = BTFactory.getDBusBTManager(); - } catch (BTException | NoSuchMethodException | SecurityException - | IllegalAccessException | IllegalArgumentException - | InvocationTargetException | ClassNotFoundException e) { - System.err.println("Failed to initialized "+BTFactory.DBusImplementationID); - throw new RuntimeException(e); - } - - /* - * The manager will try to initialize a BluetoothAdapter if any adapter is present in the system. To initialize - * discovery we can call startDiscovery, which will put the default adapter in discovery mode. - */ - @SuppressWarnings("deprecation") - final boolean discoveryStarted = manager.startDiscovery(); - - System.out.println("The discovery started: " + (discoveryStarted ? "true" : "false")); - final BTDevice sensor = getDevice(manager, new BDAddressAndType(new EUI48(args[0]), BDAddressType.BDADDR_UNDEFINED)); - - /* - * After we find the device we can stop looking for other devices. - */ - try { - manager.stopDiscovery(); - } catch (final BTException e) { - System.err.println("Discovery could not be stopped."); - } - - if (sensor == null) { - System.err.println("No sensor found with the provided address."); - System.exit(-1); - } - - System.out.print("Found device: "); - printDevice(sensor); - - if ( HCIStatusCode.SUCCESS == sensor.connect() ) - System.out.println("Sensor with the provided address connected"); - else { - System.out.println("Could not connect device."); - System.exit(-1); - } - - final Lock lock = new ReentrantLock(); - final Condition cv = lock.newCondition(); - - Runtime.getRuntime().addShutdownHook(new Thread() { - @Override - public void run() { - running = false; - lock.lock(); - try { - cv.signalAll(); - } finally { - lock.unlock(); - } - - } - }); - - - final BTGattService tempService = getService(sensor, "f000aa00-0451-4000-b000-000000000000"); - - if (tempService == null) { - System.err.println("This device does not have the temperature service we are looking for."); - sensor.disconnect(); - System.exit(-1); - } - System.out.println("Found service " + tempService.getUUID()); - - final BTGattChar tempValue = getCharacteristic(tempService, "f000aa01-0451-4000-b000-000000000000"); - final BTGattChar tempConfig = getCharacteristic(tempService, "f000aa02-0451-4000-b000-000000000000"); - final BTGattChar tempPeriod = getCharacteristic(tempService, "f000aa03-0451-4000-b000-000000000000"); - - if (tempValue == null || tempConfig == null || tempPeriod == null) { - System.err.println("Could not find the correct characteristics."); - sensor.disconnect(); - System.exit(-1); - } - - System.out.println("Found the temperature characteristics"); - - /* - * Turn on the Temperature Service by writing 1 in the configuration characteristic, as mentioned in the PDF - * mentioned above. We could also modify the update interval, by writing in the period characteristic, but the - * default 1s is good enough for our purposes. - */ - final byte[] config = { 0x01 }; - tempConfig.writeValue(config, false /* withResponse */); - - /* - * Each second read the value characteristic and display it in a human readable format. - */ - while (running) { - final byte[] tempRaw = tempValue.readValue(); - System.out.print("Temp raw = {"); - for (final byte b : tempRaw) { - System.out.print(String.format("%02x,", b)); - } - System.out.print("}"); - - /* - * The temperature service returns the data in an encoded format which can be found in the wiki. Convert the - * raw temperature format to celsius and print it. Conversion for object temperature depends on ambient - * according to wiki, but assume result is good enough for our purposes without conversion. - */ - final int objectTempRaw = (tempRaw[0] & 0xff) | (tempRaw[1] << 8); - final int ambientTempRaw = (tempRaw[2] & 0xff) | (tempRaw[3] << 8); - - final float objectTempCelsius = convertCelsius(objectTempRaw); - final float ambientTempCelsius = convertCelsius(ambientTempRaw); - - System.out.println( - String.format(" Temp: Object = %fC, Ambient = %fC", objectTempCelsius, ambientTempCelsius)); - - lock.lock(); - try { - cv.await(1, TimeUnit.SECONDS); - } finally { - lock.unlock(); - } - } - sensor.disconnect(); - - } -} |