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Free Bluetooth Remote Control Vehicle App Source Code For Delphi XE5

Discussion in 'Delphi Android And IOS' started by N0body, May 25, 2014.

  1. N0body
    Online

    N0bodyN0body is a Verified Member DelphiFan Administrator Staff Member DF Staff

    [​IMG]

    Jim McKeeth from Embarcadero has made the source code available (on Github) for a remote control vehicle app that uses Bluetooth for communication available. The code is for Delphi XE5 and AppMethod and runs on Android and probably Windows. Should also work with Delphi XE6 Firemonkey with not many changes. If you are interested in the full Bluetooth interface in Object Pascal for the Android SDK you should check out the Object Pascal Android SDK Interface project on Github. There are interface files for android.bluetooth.BluetoothAdapter, android.bluetooth.BluetoothDevice, and android.bluetooth.BluetoothServerSocket among others. Check out the documentation for Bluetooth on Android here. The app does not make use of Bluetooth discovery (but you could add that yourself) and instead has the MAC address of each device hard coded into. The code makes use of the TJBluetoothAdapter interface to the Android SDK for talking to Bluetooth. Here is some sample code for connecting to the Bluetooth vehicle with the app:

    Code:
    uses
    Androidapi.JNI.BluetoothAdapter, Android.JNI.Toast, System.SysUtils;
    
    function DoConnect(MACAddress: String; out istream: JInputstream;
    out ostream: JOutputStream): Boolean;
    var
    uid: JUUID;
    targetMAC: string;
    Adapter: JBluetoothAdapter;
    remoteDevice: JBluetoothDevice;
    Sock: JBluetoothSocket;
    begin
    uid := TJUUID.JavaClass.fromString
    (stringtojstring(’00001101-0000-1000-8000-00805F9B34FB’));
    targetMAC := MACAddress;
    Adapter := TJBluetoothAdapter.JavaClass.getDefaultAdapter;
    remoteDevice := Adapter.getRemoteDevice(stringtojstring(targetMAC));
    Toast(‘Connecting to ‘ + targetMAC);
    Sock := remoteDevice.createRfcommSocketToServiceRecord(uid);
    try
    Sock.connect;
    except
    Toast(‘Could not create service record!’);
    Exit(False);
    end;
    if not Sock.isConnected then
    begin
    Toast(‘Failed to connect to ‘ + targetMAC + ‘! Try again…’);
    Exit(False);
    end;
    Toast(‘Connected!’);
    ostream := Sock.getOutputStream; // record io streams
    istream := Sock.getInputStream;
    
    // Application.ProcessMessages;
    
    ostream.write(ord(255)); //
    ostream.write(ord(255)); // get device id (nur Chitanda)
    Sleep(200);
    Result := True;
    end;

    Download Source Code HERE
     
  2. sbk
    Offline

    sbk DF Member

    thanks
     
  3. alexftorres
    Offline

    alexftorres DF Member

  4. delphifanx
    Offline

    delphifanx Guest

    RE:

    Thanks
     
  5. aarmada
    Offline

    aarmada Guest

    RE:

    awesome thanks
     
  6. racehv
    Offline

    racehv Guest

    RE:

    Nice stuff :D

    Thanks !
     

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