Android蓝牙串行通信读取符号“ ”

我已经编写了Android代码连接到蓝牙HC-05，向HC-05发送命令并接收与发送的命令相关的不同数据。 Android应用程序连接蓝牙和发送第一条命令时，它会收到我想要的确切数据，但下一条命令会收到符号“ ”以及相关数据。Android蓝牙串行通信读取符号“ ”

我已经测试了与其他蓝牙终端在Android上的硬件电路，它的工作原理是完美的。

以下是我的串行通信代码：

void beginListenForData() { 
     final Handler handler = new Handler(); 
     final byte delimiter = 10; 
     stopWorker = false; 
     readBufferPosition = 0; 
     readBuffer = new byte[1024]; 
     workerThread = new Thread(new Runnable() { 
      public void run() { 
       while (!Thread.currentThread().isInterrupted() && !stopWorker) { 
        try { 
         int bytesAvailable = mmInputStream.available(); 

         if (bytesAvailable > 0) { 
          byte[] packetBytes = new byte[bytesAvailable]; 
          mmInputStream.read(packetBytes); 

          for (int i = 0; i < bytesAvailable; i++) { 
           byte b = packetBytes[i]; 
           if (b == delimiter) { 
            byte[] encodedBytes = new  byte[readBufferPosition]; 
            System.arraycopy(readBuffer, 0, 
              encodedBytes, 0, 
              encodedBytes.length); 
            final String data = new String(
              encodedBytes,"US-ASCII"); 
            readBufferPosition = 0; 

            handler.post(new Runnable() { 
             public void run() { 
              sampleView.setText(data); 
              str = sampleView.getText() 
                .toString(); 
              Log.i("Data", data);           
} 

            }); 
           } else { 
            readBuffer[readBufferPosition++] = b; 
           } 
          } 
         } 

        } catch (IOException ex) { 
         stopWorker = true; 
        } 
       } 

      } 


     }); 

     workerThread.start(); 
     try { 


      String command1=command.getText().toString(); 
      mmOutputStream.write(command1.getBytes()); 



     } catch (IOException e) { 

      e.printStackTrace(); 
     } 
    }

请帮助！

来源

2015-10-19 user2718012