Android Arduino和藍牙

Question

我正在Android和Arduino上做我的項目，我能夠通過藍牙將消息從Android發送到Arduino，但正在努力通過藍牙從Arduino將消息發送到Android。請幫助完成項目。在此先感謝您

接收代碼：

私有類ReadInput實現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

嘗試將arduino的rx放入藍牙模塊的tx，將藍牙模塊的tx放入arduino的rx。 您正在使用哪個arduino，並且正在使用什么藍牙模塊？ 是HC05H嗎？

如果可能，還顯示您的代碼。

Answer 2

只使用Serial.print(""); 您可以在Arduino和Android之間發送字符串。 有關更多信息， 請參考此鏈接 。

Answer 3

我已經使用藍牙和Arduino進行了類似的項目，並且我有一個具有完整工作代碼的github： https : //github.com/Primaelq/Mapping-Robot/blob/master/Companion%20App/Eye-BotCompanionApp/app/ src / main / java / studio / eye / a / eye_botcompanionapp / BluetoothService.java這是BluetoothService類，您應該看看連接的線程方法。 隨意使用任何代碼或提出任何問題。

希望對您有幫助。