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- package com.example.ibm.bluetooth_3;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
- import java.lang.reflect.Method;
- import java.util.UUID;
- import com.example.ibm.bluetooth_3.R;
- import android.app.Activity;
- import android.bluetooth.BluetoothAdapter;
- import android.bluetooth.BluetoothDevice;
- import android.bluetooth.BluetoothSocket;
- import android.content.Intent;
- import android.os.Build;
- import android.os.Bundle;
- import android.os.Handler;
- import android.util.Log;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.widget.Button;
- import android.widget.EditText;
- import android.widget.TextView;
- import android.widget.Toast;
- public class MainActivity extends Activity {
- private static final String TAG = "bluetooth2";
- Button btnOn, btnOff;
- TextView txtArduino;
- Handler h;
- final int RECIEVE_MESSAGE = 1; // Status for Handler
- private BluetoothAdapter btAdapter = null;
- private BluetoothSocket btSocket = null;
- private StringBuilder sb = new StringBuilder();
- private ConnectedThread mConnectedThread;
- // SPP UUID service
- private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
- // MAC-address of Bluetooth module (you must edit this line)
- private static String address = "00:06:66:68:30:D6";
- /** Called when the activity is first created. */
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_main);
- btnOn = (Button) findViewById(R.id.btnOn); // button LED ON
- btnOff = (Button) findViewById(R.id.btnOff); // button LED OFF
- txtArduino = (EditText) findViewById(R.id.txtArduino); // for display the received data from the Arduino
- h = new Handler() {
- public void handleMessage(android.os.Message msg) {
- switch (msg.what) {
- case RECIEVE_MESSAGE: // if receive massage
- byte[] readBuf = (byte[]) msg.obj;
- String strIncom = new String(readBuf, 0, msg.arg1); // create string from bytes array
- sb.append(strIncom); // append string
- int endOfLineIndex = sb.indexOf("rn"); // determine the end-of-line
- if (endOfLineIndex > 0) { // if end-of-line,
- String sbprint = sb.substring(0, endOfLineIndex); // extract string
- sb.delete(0, sb.length()); // and clear
- txtArduino.setText(sbprint); // update TextView
- }
- //Log.d(TAG, "...String:"+ sb.toString() + "Byte:" + msg.arg1 + "...");
- break;
- }
- };
- };
- btAdapter = BluetoothAdapter.getDefaultAdapter(); // get Bluetooth adapter
- checkBTState();
- btnOn.setOnClickListener(new OnClickListener() {
- public void onClick(View v) {
- btnOn.setEnabled(true);
- mConnectedThread.write("1"); // Send "1" via Bluetooth
- //Toast.makeText(getBaseContext(), "Turn on LED", Toast.LENGTH_SHORT).show();
- }
- });
- btnOff.setOnClickListener(new OnClickListener() {
- public void onClick(View v) {
- btnOff.setEnabled(true);
- mConnectedThread.write("0"); // Send "0" via Bluetooth
- //Toast.makeText(getBaseContext(), "Turn off LED", Toast.LENGTH_SHORT).show();
- }
- });
- }
- private BluetoothSocket createBluetoothSocket(BluetoothDevice device) throws IOException {
- if(Build.VERSION.SDK_INT >= 10){
- try {
- final Method m = device.getClass().getMethod("createInsecureRfcommSocketToServiceRecord", new Class[] { UUID.class });
- return (BluetoothSocket) m.invoke(device, MY_UUID);
- } catch (Exception e) {
- Log.e(TAG, "Could not create Insecure RFComm Connection",e);
- }
- }
- return device.createRfcommSocketToServiceRecord(MY_UUID);
- }
- @Override
- public void onResume() {
- super.onResume();
- Log.d(TAG, "...onResume - try connect...");
- // Set up a pointer to the remote node using it's address.
- BluetoothDevice device = btAdapter.getRemoteDevice(address);
- // Two things are needed to make a connection:
- // A MAC address, which we got above.
- // A Service ID or UUID. In this case we are using the
- // UUID for SPP.
- try {
- btSocket = createBluetoothSocket(device);
- } catch (IOException e) {
- errorExit("Fatal Error", "In onResume() and socket create failed: " + e.getMessage() + ".");
- }
- /*try {
- btSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
- } catch (IOException e) {
- errorExit("Fatal Error", "In onResume() and socket create failed: " + e.getMessage() + ".");
- }*/
- // Discovery is resource intensive. Make sure it isn't going on
- // when you attempt to connect and pass your message.
- btAdapter.cancelDiscovery();
- // Establish the connection. This will block until it connects.
- Log.d(TAG, "...Connecting...");
- try {
- btSocket.connect();
- Log.d(TAG, "....Connection ok...");
- } catch (IOException e) {
- try {
- btSocket.close();
- } catch (IOException e2) {
- errorExit("Fatal Error", "In onResume() and unable to close socket during connection failure" + e2.getMessage() + ".");
- }
- }
- // Create a data stream so we can talk to server.
- Log.d(TAG, "...Create Socket...");
- mConnectedThread = new ConnectedThread(btSocket);
- mConnectedThread.start();
- }
- @Override
- public void onPause() {
- super.onPause();
- Log.d(TAG, "...In onPause()...");
- try {
- btSocket.close();
- } catch (IOException e2) {
- errorExit("Fatal Error", "In onPause() and failed to close socket." + e2.getMessage() + ".");
- }
- }
- private void checkBTState() {
- // Check for Bluetooth support and then check to make sure it is turned on
- // Emulator doesn't support Bluetooth and will return null
- if(btAdapter==null) {
- errorExit("Fatal Error", "Bluetooth not support");
- } else {
- if (btAdapter.isEnabled()) {
- Log.d(TAG, "...Bluetooth ON...");
- } else {
- //Prompt user to turn on Bluetooth
- Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
- startActivityForResult(enableBtIntent, 1);
- }
- }
- }
- private void errorExit(String title, String message){
- Toast.makeText(getBaseContext(), title + " - " + message, Toast.LENGTH_LONG).show();
- finish();
- }
- private class ConnectedThread extends Thread {
- private final InputStream mmInStream;
- private final OutputStream mmOutStream;
- public ConnectedThread(BluetoothSocket socket) {
- InputStream tmpIn = null;
- OutputStream tmpOut = null;
- // Get the input and output streams, using temp objects because
- // member streams are final
- try {
- tmpIn = socket.getInputStream();
- tmpOut = socket.getOutputStream();
- } catch (IOException e) { }
- mmInStream = tmpIn;
- mmOutStream = tmpOut;
- }
- public void run() {
- byte[] buffer = new byte[1024]; // buffer store for the stream
- int bytes; // bytes returned from read()
- // Keep listening to the InputStream until an exception occurs
- while (true) {
- try {
- // Read from the InputStream
- bytes = mmInStream.read(buffer); // Get number of bytes and message in "buffer"
- h.obtainMessage(RECIEVE_MESSAGE, bytes, -1, buffer).sendToTarget(); // Send to message queue Handler
- } catch (IOException e) {
- break;
- }
- }
- }
- /* Call this from the main activity to send data to the remote device */
- public void write(String message) {
- Log.d(TAG, "...Data to send: " + message + "...");
- byte[] msgBuffer = message.getBytes();
- try {
- mmOutStream.write(msgBuffer);
- } catch (IOException e) {
- Log.d(TAG, "...Error data send: " + e.getMessage() + "...");
- }
- }
- }
- }
- <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
- android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
- android:paddingRight="@dimen/activity_horizontal_margin"
- android:paddingTop="@dimen/activity_vertical_margin"
- android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"
- android:focusable="true">
- <Button
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="On"
- android:id="@+id/btnOn"
- android:layout_alignParentTop="true"
- android:layout_centerHorizontal="true"
- android:layout_marginTop="52dp"
- android:enabled="true"
- android:focusable="true"
- android:focusableInTouchMode="true" />
- <Button
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="Off"
- android:id="@+id/btnOff"
- android:layout_below="@+id/btnOn"
- android:layout_centerHorizontal="true"
- android:layout_marginTop="63dp"
- android:enabled="true"
- android:focusable="true"
- android:focusableInTouchMode="true" />
- <EditText
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:inputType="number"
- android:ems="10"
- android:id="@+id/txtArduino"
- android:layout_below="@+id/btnOff"
- android:layout_centerHorizontal="true"
- android:layout_marginTop="65dp" />
- </RelativeLayout>
- <?xml version="1.0" encoding="utf-8"?>
- <manifest xmlns:android="http://schemas.android.com/apk/res/android"
- package="com.example.ibm.bluetooth_3" >
- <uses-permission android:name="android.permission.BLUETOOTH" />
- <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
- <application
- android:allowBackup="true"
- android:icon="@drawable/ic_launcher"
- android:label="@string/app_name"
- android:theme="@style/AppTheme" >
- <activity
- android:name=".MainActivity"
- android:label="@string/app_name" >
- <intent-filter>
- <action android:name="android.intent.action.MAIN" />
- <category android:name="android.intent.category.LAUNCHER" />
- </intent-filter>
- </activity>
- </application>
- </manifest>
- #include <SoftwareSerial.h>
- SoftwareSerial mySerial (3, 2);
- void setup()
- {
- Serial.begin (57600);
- mySerial.begin (115200);
- }
- void loop()
- {
- for (int i=0; i < 1000000; i++)
- {
- mySerial.println (i);
- Serial.println (i);
- delay (100);
- }
- }
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