bluetooth-scanner

bluetooth-scanner is a bluetooth scanner java library using bluez-dbus with BlueZ version 5.50 on linux OS. I releases this in the form of the Eclipse plug-in project. You need Java 8 or higher.

It uses the dbus PropertiesChanged mechanism to catch the advertising signal and provide the BluetoothDevice object and RSSI / TxPower data to the handler.

The purpose of this library is to use an advertising signal to trigger the connection to a bluetooth device.

I have confirmed that it works in Raspberry Pi 3B (Raspbian Buster Lite OS (2019-07-10)).

Install Raspbian Buster Lite OS (2019-07-10)

The reason for using this version is that it is the latest as of July 2019 and BlueZ 5.50 is included from the beginning.

Install jdk8 on Raspberry Pi 3B

For example, the installation of OpenJDK 8 is shown below.

# apt-get update
# apt-get install openjdk-8-jdk

Install git

If git is not included, please install it.

# apt-get install git

Use this with the following bundles

I would like to thank the authors of these very useful codes, and all the contributors.

How to use

The following sample code implementing the IScanHandler interface will be helpful.

import com.github.hypfvieh.bluetooth.DiscoveryFilter;
import com.github.hypfvieh.bluetooth.DiscoveryTransport;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothDevice;

import io.github.s5uishida.iot.bluetooth.scanner.IScanHandler;
import io.github.s5uishida.iot.bluetooth.scanner.ScanData;
import io.github.s5uishida.iot.bluetooth.scanner.ScanProcess;

public class MyScan {
    public static void main(String[] args) throws IOException, InterruptedException {
        Map<DiscoveryFilter, Object> filter = new HashMap<DiscoveryFilter, Object>();
        filter.put(DiscoveryFilter.Transport, DiscoveryTransport.LE);
        
        ScanProcess scanProcess = new ScanProcess("hci0", new MyScanHandler(), filter);
        scanProcess.start();
    }
}

class MyScanHandler implements IScanHandler {
    private static final Logger LOG = LoggerFactory.getLogger(MyScanHandler.class);
    
    @Override
    public void handle(BluetoothDevice device, ScanData data) {
        LOG.info(device.toString());
        LOG.info(data.toString());
    }
}

mkedwards / bluetooth-scanner Goto Github PK