Question

我正在尝试连接到OBDsim并收集一些数据。

第0步。Paired my Android A7 and Linux Ubuntu 18.04's bluetooth adapter

步骤1。wget http://icculus.org/obdgpslogger/downloads/obdgpslogger-0.16.tar.gz

第2步。tar -zxvf obdgpslogger-0.16.tar.gz cd obdgpslogger-0.16 mkdir build cd build

第3步。sudo apt-get install libbluetooth-dev libfltk1.1-dev libfltk1.1 fltk1.1-doc fluid fftw3-dev libgps-dev libftdi-dev cmake .. make obdsim cd ../bin/

第4步。sudo rfcomm bind 0 ##:##:##:##:##:## 1 //MAC address of linux PC sudo sdptool add SP

第5步。./obdsim -b -g gui_fltk

最简单的代码

ArrayList<BluetoothDevice> DeviceList;
BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();
Set<BluetoothDevice> pairedDevices = btAdapter.getBondedDevices();

if(pairedDevices.size() > 0)
{
   for(BluetoothDevice device : pairedDevices)
   {
      DeviceList.add(device);
   }
}
BluetoothDevice device = DeviceList.at(0); // it's my Linux Ubuntu Bluetooth device
UUID uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
BluetoothSocket socket;
try
{
   socket =  device.createInsecureRfcommSocketToServiceRecord(uuid);
}
catch(IOException e)
{
     e.printStackTrace();
}

try
{
     socket.connect();
}
catch (IOException e)
{
     e.printStackTrace();
     return 0;
}

套接字正在创建，没有任何异常，但是它总是在socket.connet();上显示java.io.IOException: read failed, socket might closed or timeout, read ret: -1

失败

我也尝试过createRfcommSocketToServiceRecord，但是socket.connect()还是失败了。

我做错了什么？请帮忙。

OBDsim套接字连接失败

0 个答案: