Android Arduino和蓝牙

Question

我正在做我的项目在Android和Arduino上，我能够通过蓝牙从Android发送消息到Arduino，但我正在努力通过蓝牙从Arduino到Android的消息。请帮助完成project.Thank你提前

接收代码：

私有类ReadInput实现Runnable {

private boolean bStop = false; 
    private Thread t; 

    public ReadInput() { 
     t = new Thread(this, "Input Thread"); 
     t.start(); 
    } 

    public boolean isRunning() { 
     return t.isAlive(); 
    } 

    @Override 
    public void run() { 
     InputStream inputStream; 

     try { 
      inputStream = mBTSocket.getInputStream(); 
      while (!bStop) { 
       byte[] buffer = new byte[256]; 
       if (inputStream.available() > 0) { 
        inputStream.read(buffer); 
        int i = 0; 
        /* 
        * This is needed because new String(buffer) is taking the entire buffer i.e. 256 chars on Android 2.3.4 http://stackoverflow.com/a/8843462/1287554 
        */ 
        for (i = 0; i < buffer.length && buffer[i] != 0; i++) { 
        } 
        final String strInput = new String(buffer, 0, i); 

        /* 
        * If checked then receive text, better design would probably be to stop thread if unchecked and free resources, but this is a quick fix 
        */ 

        if (chkReceiveText.isChecked()) { 
         mTxtReceive.post(new Runnable() { 
          @Override 
          public void run() { 
           mTxtReceive.append(strInput); 
           //Uncomment below for testing 
           //mTxtReceive.append("\n"); 
           //mTxtReceive.append("Chars: " + strInput.length() + " Lines: " + mTxtReceive.getLineCount() + "\n"); 

           int txtLength = mTxtReceive.getEditableText().length(); 
           if (txtLength > mMaxChars) { 
            mTxtReceive.getEditableText().delete(0, txtLength - mMaxChars); 
           } 

           if (chkScroll.isChecked()) { // Scroll only if this is checked 
            scrollView.post(new Runnable() { // Snippet from http://stackoverflow.com/a/4612082/1287554 
             @Override 
             public void run() { 
              scrollView.fullScroll(View.FOCUS_DOWN); 
             } 
            }); 
           } 
          } 
         }); 
        } 

       } 
       Thread.sleep(500); 
      } 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (InterruptedException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

    } 

    public void stop() { 
     bStop = true; 
    } 

} 

Answer 1

尝试把Arduino的RX的蓝牙模块和蓝牙模块的TX的TX到的Arduino的RX。你使用的是哪个arduino？你使用的是什么蓝牙模块？是HC05H吗？

如果可能，还显示您的代码。

Answer 2

只需使用Serial.print("");就可以将Arduino的字符串发送到Android。欲了解更多信息，refer to this link。

Answer 3

我已经做了一个类似的项目使用蓝牙和Arduino，我有一个Github的完整工作代码：https://github.com/Primaelq/Mapping-Robot/blob/master/Companion%20App/Eye-BotCompanionApp/app/src/main/java/studio/eye/a/eye_botcompanionapp/BluetoothService.java这是BluetoothService类，你应该看看连接的线程方法。随意使用任何代码或提出任何问题。

希望能帮到你。