Send a string from serial port via bluetooth

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Hi guys, Im studying at university I need help on my project which makes me confused and crazy : ) I m writing an application which can serially connect and send some commands like AT commands to phone. Code below connects me my phone, I got connection however I really cannot implement the function which should work like try-catch and send and receive back commands.

Hope one have time for a favor and this guy will be so happy..




package portopener;

/**
*
* @author Orkungen
*/

import javax.comm.*;
import java.util.TooManyListenersException;


public class PhoneListener implements SerialPortEventListener {

public static void main(String[] args) {

String portName = "COM40";
if (args.length > 0) portName = args[0];

PhoneListener pl = new PhoneListener();

try {
CommPortIdentifier cpi = CommPortIdentifier.getPortIdentifier(portName);
if (cpi.getPortType() == CommPortIdentifier.PORT_SERIAL) {
SerialPort modem = (SerialPort) cpi.open("Phone Listener", 1000);
modem.notifyOnRingIndicator(true);
modem.addEventListener(pl);

}
}
catch (NoSuchPortException e) {
System.err.println("Usage: java PhoneListener port_name");
}
catch (TooManyListenersException e) {
// shouldn't happen in this
}
catch (PortInUseException e) {
System.err.println(e);
}

}

public void serialEvent(SerialPortEvent evt) {

System.err.println(evt.getEventType());
if (evt.getEventType() == SerialPortEvent.RI) {
System.out.println("The phone is found");
}

}


}

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Hi again everybody, i think no one could find a solution for my case :D

anyway, bests

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Hi again,

I extended my code by forum, but still it does fail, below is fail message :
run:
java.lang.NullPointerException
–1–
at portopener.PhoneListener.writetoport(PhoneListener .java:74)
at portopener.PhoneListener.main(PhoneListener.java:3 5)
Java Result: 2147483647
BUILD SUCCESSFUL (total time: 3 minutes 28 seconds)


and my extended code is:



package portopener;

/**
*
* @author Orkungen
*/

import java.io.InputStream;
import java.io.OutputStream;
import javax.comm.*;
import java.util.TooManyListenersException;


public class PhoneListener implements SerialPortEventListener {

static OutputStream outputStream;
static InputStream inputStream;
static SerialPort serialPort;




public static void main(String[] args) {

String portName = "COM40";
if (args.length > 0) portName = args[0];
PhoneListener pl = new PhoneListener();

try {
CommPortIdentifier cpi = CommPortIdentifier.getPortIdentifier(portName);
if (cpi.getPortType() == CommPortIdentifier.PORT_SERIAL) {
SerialPort modem = (SerialPort) cpi.open("Phone Listener", 1000);
pl.writetoport();
modem.notifyOnRingIndicator(true);
modem.addEventListener(pl);

}
}
catch (NoSuchPortException e) {
System.err.println("Usage: java PhoneListener COM40");
}
catch (TooManyListenersException e) {

}
catch (PortInUseException e) {
System.err.println(e);
}

}

public void serialEvent(SerialPortEvent evt) {

System.err.println(evt.getEventType());
if (evt.getEventType() == SerialPortEvent.RI) {
System.out.println("The phone is found");

}



}
public void writetoport() {
String s1="AT";
String s2="\r\n";//enter
String s3="AT+CMGF=1";//set text mode
String s4="AT+CSCA=\"+4540390999\"";//service centre number
String s5="AT+CMGS=\"+4552731228\"";//receiver number, can be extendent
String s6="<ctrl+z>";//ctrl+z should be merged after text tı be sent
String messageString = "hello woorld!";
try {
// set port parameters
serialPort.setSerialPortParams(9600, SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
outputStream =serialPort.getOutputStream();
inputStream = serialPort.getInputStream();
}
catch (Exception e) {
e.printStackTrace();
}
try
{
System.out.println("–1–");
outputStream.write(s1.getBytes()); // AT command
// System.out.println(s1.getBytes());
// outputStream.wait(10000);
outputStream.write(s2.getBytes()); // enter
Thread.sleep(1000); //sleeping thread
System.out.println("–2–");
// outputStream.wait(1000);
outputStream.write(s3.getBytes()); //at+cmgf=1 command
// outputStream.wait(1000);
outputStream.write(s2.getBytes()); //enter
Thread.sleep(1000);// thread sleeping
System.out.println("–3–");
// outputStream.wait(1000);
outputStream.write(s4.getBytes()); //at+csca="<servicecentrenumber>"
// outputStream.wait(1000);
outputStream.write(s2.getBytes()); //enter
Thread.sleep(1000); //thread sleeping
System.out.println("–4–");
// outputStream.wait(1000);
outputStream.write(s5.getBytes());//at+cmgs="receiver number"
outputStream.write(s2.getBytes()); //enter
Thread.sleep(1000); //thread sleeping
System.out.println("–5–");
outputStream.write(messageString.getBytes()); // message
// outputStream.wait(1000);
outputStream.write(s6.getBytes());//ctrl+z
outputStream.write(s2.getBytes()); //enter
Thread.sleep(1000);
System.out.println("–6–");

// outputStream.wait(1000);
byte[] readBuffer = new byte[23];
try
{
while (inputStream.available() > 0) {
//int numBytes = inputStream.read(readBuffer);
//System.out.println(numBytes);

// print data

String result = new String(readBuffer);
System.out.println("Read: "+result);
}
}
catch(Exception e)
{
e.printStackTrace();
}
outputStream.close();
serialPort.close();
}
catch(Exception e)
{

}


}


}


indeed i still need help, anyone interested?

[vietnamtour]

Thanks for sharing