Envío de datos de Android a Arduino con el módulo HC-06 Bluetooth

He creado una aplicación de Android para comunicarme con mi Arduino mediante Bluetooth. Pero cuando envío datos desde mi dispositivo Android a mi Arduino, el Arduino no responde a lo que he enviado. Puedo conseguir una conexión de mi dispositivo androide a mi Arduino. Así que ese no es el problema.

Aquí está mi script completo para Android.

• Parámetros de conexión de baja energía de Bluetooth para Android, iOS y Win8
• Desconecta un zócalo bluetooth en Android
• Cómo modificar la pila Bluetooth de Android para habilitar el fregadero A2dp
• Bluetooth en el fondo como un servicio en Android?
• Onreceive () no funciona con Android O

package nl.handoko.LumaMini; import java.io.IOException; import java.io.OutputStream; import java.util.UUID; import android.app.Activity; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothSocket; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { private static final String TAG = "LumaMini"; private static final int REQUEST_ENABLE_BT = 1; private BluetoothAdapter btAdapter = null; private BluetoothSocket btSocket = null; private OutputStream outStream = null; Button fourty, thirty, twenty, twelve, automatic, manual; TextView message; // Well known SPP UUID private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); // Server's MAC address private static String address = "98:D3:31:30:09:43"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.d(TAG, "In onCreate()"); setContentView(R.layout.activity_mainnn); fourty = (Button) findViewById(R.id.button1); thirty = (Button) findViewById(R.id.button4); twenty = (Button) findViewById(R.id.button2); twelve = (Button) findViewById(R.id.button5); automatic = (Button) findViewById(R.id.button3); manual = (Button) findViewById(R.id.button6); message = (TextView) findViewById(R.id.textView1); fourty.setText("40 Leds"); thirty.setText("30 Leds"); twenty.setText("20 Leds"); twelve.setText("12 Leds"); automatic.setText("Automatic"); manual.setText("Manual"); message.setText("Using this app you can take full control of the Luma Mini!" + "When it's running on automatic please switch back to manual first before switching to other versions."); btAdapter = BluetoothAdapter.getDefaultAdapter(); checkBTState(); fourty.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("a"); Toast msg = Toast.makeText(getBaseContext(), "40 Leds version", Toast.LENGTH_SHORT); msg.show(); } }); thirty.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("b"); Toast msg = Toast.makeText(getBaseContext(), "30 Leds version", Toast.LENGTH_SHORT); msg.show(); } }); twenty.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("c"); Toast msg = Toast.makeText(getBaseContext(), "20 Leds version", Toast.LENGTH_SHORT); msg.show(); } }); twelve.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("d"); Toast msg = Toast.makeText(getBaseContext(), "12 Leds version", Toast.LENGTH_SHORT); msg.show(); } }); automatic.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("e"); Toast msg = Toast.makeText(getBaseContext(), "Run automatically", Toast.LENGTH_SHORT); msg.show(); } }); manual.setOnClickListener(new OnClickListener() { public void onClick(View v) { sendData("f"); Toast msg = Toast.makeText(getBaseContext(), "Manually switch Leds", Toast.LENGTH_SHORT); msg.show(); } }); } @Override public void onResume() { super.onResume(); Log.d(TAG, "...In onResume - Attempting client 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 = 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 to Remote..."); try { btSocket.connect(); Log.d(TAG, "...Connection established and data link opened..."); } 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, "...Creating Socket..."); try { outStream = btSocket.getOutputStream(); } catch (IOException e) { errorExit("Fatal Error", "In onResume() and output stream creation failed:" + e.getMessage() + "."); } } @Override public void onPause() { super.onPause(); Log.d(TAG, "...In onPause()..."); if (outStream != null) { try { outStream.flush(); } catch (IOException e) { errorExit("Fatal Error", "In onPause() and failed to flush output stream: " + e.getMessage() + "."); } } 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 supported. Aborting."); } else { if (btAdapter.isEnabled()) { Log.d(TAG, "...Bluetooth is enabled..."); } else { //Prompt user to turn on Bluetooth Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); } } } private void errorExit(String title, String message){ Toast msg = Toast.makeText(getBaseContext(), title + " - " + message, Toast.LENGTH_SHORT); msg.show(); finish(); } private void sendData(String message) { byte[] msgBuffer = message.getBytes(); Log.d(TAG, "...Sending data: " + message + "..."); try { outStream.write(msgBuffer); } catch (IOException e) { String msg = "In onResume() and an exception occurred during write: " + e.getMessage(); msg = msg + ".\n\nCheck that the SPP UUID: " + MY_UUID.toString() + " exists on server.\n\n"; errorExit("Fatal Error", msg); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @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. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } } 

Y aquí está mi script de Arduino:

 #include <SoftwareSerial.h> #include <TimerOne.h> #define Rx 2 #define Tx 3 #define seconds 4 char serialData; // Serial data memory int counter1; // Overflow memory int action; // Action trigger int once = 0; // Run only once SoftwareSerial Bluetooth(Rx, Tx); void setup(){ pinMode(Tx, OUTPUT); // Configure Tx as OUTPUT (Transmitter) pinMode(Rx, INPUT); delay(1000); Bluetooth.begin(9600); Serial.begin(1200); delay(1000); Serial.print("Bluetooth ready"); Bluetooth.flush(); TimerOneSetup(); // Run the setup for Timer One for(int i = 5; i <= 8; i++){ // Make pins 5, 6, 7 and 8 OUTPUT pinMode(i, OUTPUT); } } void interrupt1(){ // Timer One loop counter1++; // Count the amount of seconds has passed if (counter1 == seconds){ // Trigger the next action after a several amount of seconds (Default: 4 seconds) action++; counter1 = 0; } if (action > 3){ // Reset action trigger when after all actions were runned action = 0; } } void loop(){ // Endless loop if (Serial.available()){ // Wait for data recieved from Local device serialData = Serial.read(); // Put recieved data in memory Serial.print("Data recieved from Local device: "); Serial.println(serialData); } if (Bluetooth.available()){ // Wait for data recieved from Bluetooth device serialData = Bluetooth.read(); // Put recieved data in memory Serial.print("Data recieved from Bluetooth device: "); Serial.print(serialData); } if (once == 0){ // This script will be run only once serialData = 'e'; // Put switch on automatic on startup once++; // Get into the next stage which may be run only once } switch(serialData){ // Perform action on state of the switch case 'a': fourtyLeds(); // Show the 40 Leds version of the Luma Mini break; case 'b': thirtyLeds(); // Show the 30 Leds version of the Luma Mini break; case 'c': twentyLeds(); // Show the 20 Leds version of the Luma Mini break; case 'd': twelveLeds(); // Show the 12 Leds version of the Luma Mini break; case 'e': while(serialData == 'e'){ // Keep changing different Led versions of the Luma Mini automatically switch(action){ case 0: // Wait for the action trigger to hit the first action fourtyLeds(); // Show the 40 Leds version of the Luma Mini break; case 1: // Wait for the action trigger to hit the second action twelveLeds(); // Show the 12 Leds version of the Luma Mini break; case 2: // Wait for the action trigger to hit the third action twentyLeds(); // Show the 20 Leds version of the Luma Mini break; case 4: // Wait for the action trigger to hit the fourth action thirtyLeds(); // Show the 30 Leds version of the Luma Mini break;} if (Serial.read() == 'f'){ // Wait for data recieved from Local device serialData = Serial.read(); // Put recieved data in memory Serial.print("Data recieved from Local device: "); Serial.println(serialData); } if (Bluetooth.read() == 'f'){ // Wait for data recieved from Bluetooth device serialData = Bluetooth.read(); // Put recieved data in memory Serial.print("Data recieved from Bluetooth device: "); Serial.println(serialData); } break; } } } void BluetoothSetup(){ pinMode(Tx, OUTPUT); // Configure Tx as OUTPUT (Transmitter) pinMode(Rx, INPUT); // Configure Rx as INPUT (Reciever) Bluetooth.begin(9600); // Set Bluetooth baud rate to default baud rate 38400 Bluetooth.print("\r\n+STWMOD=0\r\n"); // Set the Bluetooth to work in slave mode Bluetooth.print("\r\n+STNA=Luma Mini\r\n"); // Set Bluetooth name to Luma Mini Bluetooth.print("\r\n+STOAUT=1\r\n"); // Permit paired device to connect Bluetooth.print("\r\n+STAUTO=0\r\n"); // Auto-connection should be forbidden here delay(2000); Bluetooth.print("\r\n+INQ=1\r\n"); // Make this Bluetooth Slave inquirable Serial.println("The slave Bluetooth is inquirable!"); delay(2000); Bluetooth.flush(); } void TimerOneSetup(){ Timer1.initialize(1000000); // Initialize Timer One for an overflow exactly every 1 second Timer1.attachInterrupt(interrupt1); // Open the Timer One loop } void fourtyLeds(){ // Show the 40 Leds version of the Luma Mini for(int i = 5; i <= 8; i++){ digitalWrite(i, LOW); } } void thirtyLeds(){ // Show the 30 Leds version of the Luma Mini digitalWrite(5, HIGH); digitalWrite(6, LOW); digitalWrite(7, LOW); digitalWrite(8, LOW); } void twentyLeds(){ // Show the 20 Leds version of the Luma Mini digitalWrite(5, HIGH); digitalWrite(6, HIGH); digitalWrite(7, LOW); digitalWrite(8, HIGH); } void twelveLeds(){ // Show the 12 Leds version of the Luma Mini for (int i = 5; i <= 8; i++){ digitalWrite(i, HIGH); } } 

Mi pregunta: ¿Cómo puedo enviar datos de CHAR desde un dispositivo Android a mi Arduino? ¿Y qué editar en mi guión?

 package com.exercise.androidanimbuttons; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.IntentFilter; import android.widget.Toast; import android.bluetooth.BluetoothSocket; import android.app.ProgressDialog; import android.os.AsyncTask; import java.io.IOException; import java.io.InputStream; import java.util.UUID; import java.util.Set; import android.os.Handler; public class BlueTooth extends vars { private Set<BluetoothDevice> pairedDevices; String address = null; private ProgressDialog progress = null; BluetoothAdapter myBluetooth = null; BluetoothSocket btSocket = null; InputStream mmInStream = null; private Handler myHandler = new Handler(); byte[] buffer = new byte[25]; int readBytes; files filesI = new files(); Handler btH = new Handler(); static final UUID myUUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); private SingBroadcastReceiver mReceiver; Runnable btSearch; void stopDiscovery() { if (myBluetooth.isDiscovering()){ myBluetooth.cancelDiscovery(); } } void findCurrentBT() { if (!myBluetooth.isEnabled()){ Intent enableBT = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBT, 0xDEADBEEF); } if (myBluetooth.isDiscovering()){ myBluetooth.cancelDiscovery(); } closeProgress(); progress = ProgressDialog.show(BlueTooth.this, "Searching for headband...", "MAKE SURE THE HEADBAND IS TURNED ON."); progress.setCanceledOnTouchOutside(true); myBluetooth.startDiscovery(); mReceiver = new SingBroadcastReceiver(); IntentFilter ifilter = new IntentFilter(BluetoothDevice.ACTION_FOUND); this.registerReceiver(mReceiver, ifilter); checkSearch(); } private class SingBroadcastReceiver extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (BluetoothDevice.ACTION_FOUND.equals(action)) { BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); String derp = device.getName() + " - " + device.getAddress(); ta(derp); Toast.makeText(context, derp, Toast.LENGTH_LONG); if ((device.getName() != null) && (device.getName().indexOf("HC-06") == 0) && (device.getName().length() == 5)) { myBluetooth.cancelDiscovery(); address = device.getAddress(); new ConnectBT().execute(); } } } } private Runnable readBT = new Runnable() { public void run() { int i; int twoByte = 0; short high = 0, low = 0; try { if (mmInStream.available() > 3) { cnt = 0; readBytes = mmInStream.read(buffer); String S = ""; for (i = 0; i < 2; i++) S += String.format("%03d", buffer[i] & 0xFF)+", "; high = (short)(buffer[3] & 0xFF); low = (short)(buffer[2] & 0xFF); twoByte = ((high << 8) | low); S += String.format("%03d", twoByte) + "\r\n"; filesI.writeALine("nights","data12.txt",S); ta(S); } } catch (IOException e) { ta("err:2 " + e.toString()); } if (btSocket.isConnected()) myHandler.postDelayed(this, 100); } }; public void btConnect() { Disconnect(); findCurrentBT(); } public void btOn() { turnOnLed(); } public void btOff() { turnOffLed(); } public void btDisconnect() { Disconnect(); } private void Disconnect() { if (btSocket!=null) { try { btSocket.close(); } catch (IOException e) { msg("Bluetooth Disconnect Error");} } } private void turnOffLed() { if (btSocket!=null) { try { btSocket.getOutputStream().write("TF".toString().getBytes()); } catch (IOException e) { msg("Error"); } } } private void turnOnLed() { int len; byte[] buffer = new byte[400]; if (btSocket!=null) { try { btSocket.getOutputStream().write("TO".toString().getBytes()); len = btSocket.getInputStream().available(); btSocket.getInputStream().read(buffer,0,len); } catch (IOException e) { msg("Error"); } } } private void msg(String s) { Toast.makeText(getApplicationContext(),s,Toast.LENGTH_LONG).show(); } void closeProgress() { if (progress != null) progress.dismiss(); } private class ConnectBT extends AsyncTask<Void, Void, Void> { @Override protected void onPreExecute() { closeProgress(); progress = ProgressDialog.show(BlueTooth.this, "Connecting to headband...", ""); progress.setCanceledOnTouchOutside(true); } @Override protected Void doInBackground(Void... devices) { try { if (btSocket == null || (!btSocket.isConnected())) { BluetoothDevice dispositivo = myBluetooth.getRemoteDevice(address); btSocket = dispositivo.createInsecureRfcommSocketToServiceRecord(myUUID); BluetoothAdapter.getDefaultAdapter().cancelDiscovery(); btSocket.connect(); } } catch (IOException e) { } return null; } @Override protected void onPostExecute(Void result) { super.onPostExecute(result); if (!btSocket.isConnected()) { msg("Connection Failed. Is the headband turned on?"); } else { msg("Connected."); try { mmInStream = btSocket.getInputStream(); myHandler.postDelayed(readBT, 1000); } catch (IOException e) { ta("err:1 " + e.toString()); } } closeProgress(); } } int cnt = 0; void checkSearch() { if (btSearch != null) return; btSearch = new Runnable(){@Override public void run(){ if ((btSocket != null) && (btSocket.isConnected())) { cnt--; if (cnt < -10) { cnt = 0; btConnect(); } } else if (myBluetooth.isDiscovering()) { cnt++; } btH.postDelayed(this, 1000); fa(cnt); }}; btH.postDelayed(btSearch,1000); } } 

 byte mini [4]; int battery; unsigned long mill = millis(); byte moveCnt = 1; int minuteCnt = 0; int lastMove = 0; int moveA, moveB, moveC, LMoveA, LMoveB, LMoveC, totMove, eyes, LEyes, totEyes; int moveUpA = 0; int moveDnA = 1000; int moveUpB = 0; int moveDnB = 1000; int moveUpC = 0; int moveDnC = 1000; #include <SoftwareSerial.h> SoftwareSerial mySerial(3, 5); // RX, TX void setup() { Serial .begin(9600); mySerial.begin(9600); } void loop() { if (millis() > mill) { mill += 100; minuteCnt++; // *** EYES *** eyes = analogRead(A6); totEyes += abs(eyes-LEyes); LEyes = eyes; // *** MOVEMENT *** --KEEP-- moveA = max(0,analogRead(A1) >> 2); moveA = analogRead(A0); moveB = analogRead(A1); moveC = analogRead(A2); totMove += abs(moveA-LMoveA) + abs(moveB-LMoveB) + abs(moveC-LMoveC); LMoveA = moveA; LMoveB = moveB; LMoveC = moveC; // *** SEND SECOND *** if (minuteCnt >= 10) { minuteCnt = 0; // *** BATTERY *** battery = analogRead(A5); // battery mini[2] = (battery & 0xff); // battery low byte mini[3] = ((battery >> 8) & 0xff); // battery high byte // *** EYES *** mini[0] = min(max(0,totEyes-10),255); totEyes = 0; // *** MOVEMENT *** mini[1] = min(max(0,totMove-30),255); totMove = 0; Serial.print(mini[0]); Serial.print(" "); Serial.print(mini[1]); Serial.print(" "); Serial.print(mini[2]); Serial.print(" "); Serial.println(mini[3]); mySerial.write(mini,4); } } }