遵循我的Arduino代码：
#include <SoftwareSerial.h>
int bluetoothRx = 1;
int bluetoothTx = 2;
int led =13;
SoftwareSerial bluetooth(bluetoothTx, bluetoothRx);
void setup()
{
TCCR2B = TCCR2B & 0b11111000 | 0x01;
Serial.begin(9600);
pinMode(led,OUTPUT);
bluetooth.begin(9600);
}
void loop()
{
if(bluetooth.available())
{
digitalWrite(led, HIGH);
Serial.println((int)(bluetooth.read()));
}
}
这是我的Android代码：
MainActivity.java
公共类MainActivity扩展了AppCompatActivity 实现NavigationView.OnNavigationItemSelectedListener {
private Button connect_bluetooth, lamp2, lamp1, fan1;
private boolean lampstate = false, fanstate = false;
private static final int REQUEST_CONNECT_DEVICE = 1;
private static final int REQUEST_ENABLE_BT = 2;
private boolean connectStat = false;
protected static final int MOVE_TIME = 80;
private AlertDialog aboutAlert;
private View aboutView;
private View controlView;
private View.OnClickListener myClickListener;
private ProgressDialog myProgressDialog;
private Toast failToast;
private Handler mHandler;
private BluetoothAdapter mBluetoothAdapter = null;
private BluetoothSocket btSocket = null;
private OutputStream outStream = null;
private ConnectThread mConnectThread = null;
private String deviceAddress = null;
private static final UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
aboutView = inflater.inflate(R.layout.aboutview, null);
controlView = inflater.inflate(R.layout.activity_main, null);
controlView.setKeepScreenOn(true);
myProgressDialog = new ProgressDialog(this);
failToast = Toast.makeText(this, R.string.failedToConnect, Toast.LENGTH_SHORT);
mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
if (myProgressDialog.isShowing()) {
myProgressDialog.dismiss();
}
if (msg.what == 1) {
connectStat = true;
write(10);
} else {
failToast.show();
}
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(aboutView).setCancelable(true).setTitle(getResources().getString(R.string.app_name) + " " + getResources().getString(R.string.appVersion)).setIcon(R.drawable.ic_menu_camera).setPositiveButton("Yes", (DialogInterface.OnClickListener) myClickListener);
aboutAlert = builder.create();
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter == null) {
Toast.makeText(this, R.string.no_bt_device, Toast.LENGTH_LONG).show();
//finish();
return;
}
if (!mBluetoothAdapter.isEnabled()) {
Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
}
connect_bluetooth = (Button) findViewById(R.id.connect_button);
connect_bluetooth.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (connectStat) {
// Attempt to disconnect from the device
disconnect();
} else {
// Attempt to connect to the device
connect();
}
}
});
lamp1 = (Button) findViewById(R.id.lamp1);
lamp1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
if (lampstate) {
write(102);
lampstate = false;
toast1("lamp1 is Off" + 102);
} else {
write(101);
lampstate = true;
toast1("lamp1 is On" + 101);
}
}
});
lamp2 = (Button) findViewById(R.id.lamp2);
lamp2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
if (lampstate) {
write(104);
toast1("lamp2 is Off" + 103);
lampstate = false;
} else {
write(103);
toast1("lamp2 is ON" + 103);
lampstate = true;
}
}
});
fan1 = (Button) findViewById(R.id.Fan1);
fan1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
if (fanstate) {
write(106);
fanstate = false;
toast1("Fan is Off" + 106);
} else {
write(105);
toast1("Fan is ON" + 105);
fanstate = true;
}
}
});
}
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CONNECT_DEVICE:
if (resultCode == this.RESULT_OK) {
myProgressDialog = ProgressDialog.show(this, getResources().getString(R.string.pleaseWait), getResources().getString(R.string.makingConnectionString), true);
deviceAddress = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
mConnectThread = new ConnectThread(deviceAddress);
mConnectThread.start();
} else {
Toast.makeText(this, R.string.macFailed, Toast.LENGTH_SHORT).show();
}
break;
case REQUEST_ENABLE_BT:
if (resultCode == this.RESULT_OK) {
} else {
Toast.makeText(this, R.string.bt_not_enabled_leaving, Toast.LENGTH_SHORT).show();
finish();
}
}
}
public void write(int data) {
if (outStream != null) {
try {
outStream.write(data);
} catch (IOException e) {
}
}
}
public void emptyOutStream() {
if (outStream != null) {
try {
outStream.flush();
} catch (IOException e) {
}
}
}
public void connect() {
Intent serverIntent = new Intent(this, DeviceListActivity.class);
startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
}
public void disconnect() {
if (outStream != null) {
try {
outStream.close();
connectStat = false;
} catch (IOException e) {
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return true;
}
@Override
public void onResume() {
super.onResume();
}
@Override
public void onDestroy() {
emptyOutStream();
disconnect();
super.onDestroy();
}
public void toast1(String s1) {
Toast.makeText(this, s1, Toast.LENGTH_SHORT).show();
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
switch (item.getItemId()) {
case R.layout.aboutview:
aboutAlert.show();
return true;
}
return false;
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public class ConnectThread extends Thread {
private String address;
private boolean connectionStatus;
private BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); ;
ConnectThread(String MACaddress) {
address = MACaddress;
connectionStatus = true;
}
public void run() {
try {
BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
try {
btSocket = device.createRfcommSocketToServiceRecord(SPP_UUID);
} catch (IOException e) {
connectionStatus = false;
}
} catch (IllegalArgumentException e) {
connectionStatus = false;
}
mBluetoothAdapter.cancelDiscovery();
try {
btSocket.connect();
} catch (IOException e1) {
try {
btSocket.close();
} catch (IOException e2) {
}
}
try {
outStream = btSocket.getOutputStream();
} catch (IOException e2) {
connectionStatus = false;
}
if (connectionStatus) {
mHandler.sendEmptyMessage(1);
} else {
mHandler.sendEmptyMessage(0);
}
}
}
}
DeviceList.java
public class DeviceListActivity extends Activity{
// Return Intent extra
public static String EXTRA_DEVICE_ADDRESS = "device_address";
// Member fields
private BluetoothAdapter mBtAdapter;
private ArrayAdapter<String> mPairedDevicesArrayAdapter;
private ArrayAdapter<String> mNewDevicesArrayAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Setup the window
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setContentView(R.layout.device_list);
// Set result CANCELED incase the user backs out
setResult(Activity.RESULT_CANCELED);
// Initialize the button to perform device discovery
Button scanButton = (Button) findViewById(R.id.button_scan);
scanButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
doDiscovery();
v.setVisibility(View.GONE);
}
});
mPairedDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name);
mNewDevicesArrayAdapter = new ArrayAdapter<String>(this, R.layout.device_name);
ListView pairedListView = (ListView) findViewById(R.id.paired_devices);
pairedListView.setAdapter(mPairedDevicesArrayAdapter);
pairedListView.setOnItemClickListener(mDeviceClickListener);
// Find and set up the ListView for newly discovered devices
ListView newDevicesListView = (ListView) findViewById(R.id.new_devices);
newDevicesListView.setAdapter(mNewDevicesArrayAdapter);
newDevicesListView.setOnItemClickListener(mDeviceClickListener);
// Register for broadcasts when a device is discovered
IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
this.registerReceiver(mReceiver, filter);
// Register for broadcasts when discovery has finished
filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
this.registerReceiver(mReceiver, filter);
// Get the local Bluetooth adapter
mBtAdapter = BluetoothAdapter.getDefaultAdapter();
// Get a set of currently paired devices
Set<BluetoothDevice> pairedDevices = mBtAdapter.getBondedDevices();
// If there are paired devices, add each one to the ArrayAdapter
if (pairedDevices.size() > 0) {
findViewById(R.id.title_paired_devices).setVisibility(View.VISIBLE);
for (BluetoothDevice device : pairedDevices) {
mPairedDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
}
} else {
String noDevices = getResources().getText(R.string.none_paired).toString();
mPairedDevicesArrayAdapter.add(noDevices);
}
}
@Override
protected void onDestroy() {
super.onDestroy();
// Make sure we're not doing discovery anymore
if (mBtAdapter != null) {
mBtAdapter.cancelDiscovery();
}
// Unregister broadcast listeners
this.unregisterReceiver(mReceiver);
}
/**
* Start device discover with the BluetoothAdapter
*/
private void doDiscovery() {
// Indicate scanning in the title
setProgressBarIndeterminateVisibility(true);
setTitle(R.string.scanning);
// Turn on sub-title for new devices
findViewById(R.id.title_new_devices).setVisibility(View.VISIBLE);
// If we're already discovering, stop it
if (mBtAdapter.isDiscovering()) {
mBtAdapter.cancelDiscovery();
}
// Request discover from BluetoothAdapter
mBtAdapter.startDiscovery();
}
// The on-click listener for all devices in the ListViews
private OnItemClickListener mDeviceClickListener = new OnItemClickListener() {
public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) {
// Cancel discovery because it's costly and we're about to connect
mBtAdapter.cancelDiscovery();
// Get the device MAC address, which is the last 17 chars in the View
String info = ((TextView) v).getText().toString();
try {
// Attempt to extract a MAC address
String address = info.substring(info.length() - 17);
// Create the result Intent and include the MAC address
Intent intent = new Intent();
intent.putExtra(EXTRA_DEVICE_ADDRESS, address);
// Set result and finish this Activity
setResult(Activity.RESULT_OK, intent);
finish();
}catch (IndexOutOfBoundsException e) {
// Extraction failed, set result and finish this Activity
setResult(Activity.RESULT_CANCELED);
finish();
}
}
};
// The BroadcastReceiver that listens for discovered devices and
// changes the title when discovery is finished
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action)) {
// Get the BluetoothDevice object from the Intent
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
// If it's already paired, skip it, because it's been listed already
if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
}
// When discovery is finished, change the Activity title
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
setProgressBarIndeterminateVisibility(false);
setTitle(R.string.select_device);
if (mNewDevicesArrayAdapter.getCount() == 0) {
String noDevices = getResources().getText(R.string.none_found).toString();
mNewDevicesArrayAdapter.add(noDevices);
}
}
}
};
}
我正在使用Arduino Uno并试图通过串口监视器波特9600/4800看到传递的消息和所有其他但我可以看到从android到arduino的传递号码