sending commands through RxTx

sending commands through RxTx

i am trying to call lightOn and LightOff method from NewSerialWriter's run() method but not able to make the correct logic. please help me with this. here is my code of different classes.

package newRelay_3088;

import gnu.io.CommPort; import gnu.io.CommPortIdentifier; import gnu.io.SerialPort; import java.io.InputStream; import java.io.OutputStream; import java.util.*;

public class LightController {

public LightController() throws Exception
{
    super();

    CommPortIdentifier commPortIdentifier = CommPortIdentifier.getPortIdentifier("COM12");

    if(commPortIdentifier.isCurrentlyOwned())
    {
        System.out.println("Error: Port is currently in use");
    }
    else
    {
        CommPort commPort = commPortIdentifier.open(this.getClass().getName(), 2000);

        if(commPort instanceof SerialPort)
        {
            SerialPort serialPort = (SerialPort) commPort;
            serialPort.setSerialPortParams(19200, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);

            InputStream in = serialPort.getInputStream();
            OutputStream out = serialPort.getOutputStream();

            (new Thread(new NewSerialReader(in))).start();
            (new Thread(new NewSerialWriter(out))).start();
        }
        else
        {
             System.out.println("Error: Only serial ports are handled by this example.");
        }
    }
}

public static void main(String[] args)
{
    try
    {
        new LightController();
    } 
    catch (Exception e) 
    {
        e.printStackTrace();
    }

    Lights light_1 = new Lights("00000001");

    Lights light_2 = new Lights("00000002");

    Lights light_3 = new Lights("00000004");

    Lights light_4 = new Lights("00000008");

    Lights light_5 = new Lights("00000016");

    Lights light_6 = new Lights("00000032");

    Lights light_7 = new Lights("00000064");

    Lights light_8 = new Lights("00000128");

    HashMap<Integer, Lights> lightList = new HashMap<Integer, Lights>();

    lightList.put(1, light_1);
    lightList.put(2, light_2);
    lightList.put(3, light_3);
    lightList.put(4, light_4);
    lightList.put(5, light_5);
    lightList.put(6, light_6);
    lightList.put(7, light_7);
    lightList.put(8, light_8);

    lightList.get(1).lightOn(); 
}

}


package newRelay_3088;

import java.io.IOException; import java.io.OutputStream;

public class Lights{ OutputStream out; String str;

public Lights(String str)
{
    this.str = str;
}

public void lightOn()
{
    // code for light on goes here
    System.out.println(str);
    try
    {   
        String hexString = String.format("%02X", Integer.parseInt(str));
        System.out.println("HexSting : " + hexString);
        System.out.println(hexString.length());
        String command = "!012" + hexString + "\r";
        System.out.println(command);
        System.out.println(command.getBytes());
        out.write(command.getBytes());
        System.out.println("-----------------------1-------------------------");
        int c = 0;
        while((c = System.in.read()) > -1)
        {
            System.out.println("-----------------------2-------------------------");
            this.out.write(c);
        }
    }
    catch ( IOException e )
    {
        e.printStackTrace();
    }
}

public void lightOff(int sequenceNo)
{
    // code for light off goes here
    try
    {

        String hexString = String.format("%02X", Integer.parseInt(str));
        System.out.println("HexSting : " + hexString);
        System.out.println(hexString.length());
        String command = "!012" + hexString + "\r";
        System.out.println(command);
        out.write(command.getBytes());
        System.out.println("-----------------------1-------------------------");
        int c = 0;
        while((c = System.in.read()) > -1)
        {
            System.out.println("-----------------------2-------------------------");
            this.out.write(c);
        }
    }
    catch ( IOException e )
    {
        e.printStackTrace();
    } 
}

public void getLightStatus()
{
    // method for getting the current status of all the lights
    // code goes here
}

}


package newRelay_3088;

import java.io.IOException; import java.io.InputStream;

public class NewSerialReader implements Runnable{

InputStream in;

public NewSerialReader(InputStream in)
{
    this.in = in;
}

public void run()
{
    byte[] buffer = new byte[1024];
    int length = -1;

    try
    {
        while((length =this.in.read(buffer)) > -1 )
        {
            System.out.print(new String(buffer, 0, length));
        }
    }
    catch ( IOException e )
    {
       e.printStackTrace();
    } 
}

}


package newRelay_3088;

import java.io.IOException; import java.io.OutputStream;

public class NewSerialWriter implements Runnable{ public OutputStream out;

public NewSerialWriter(OutputStream out) 
{
    this.out = out;
}

public void run() 
{

}

} please help ,e with this. also tell me where else my logic is not right. i sm trying to send 8 different commands to a relay to switch on and off the lights and at the same time continuously checking the status... thanks a ton in advance.

View Answers

Ads









Related Tutorials/Questions & Answers:
sending commands through RxTx
sending commands through RxTx  i am trying to call lightOn and LightOff method from NewSerialWriter's run() method but not able to make the correct... me where else my logic is not right. i sm trying to send 8 different commands
Sending images through java mail
Sending images through java mail  Am trying to develop greeting application that having images..... in one jsp page i displayed all images and by clicking one image the control go to mail sending page in that the image should add
Advertisements
sending mail using jsp
sending mail using jsp  please give me the detailed procedure and code for sending mail through jsp program   Please visit the following links: http://www.roseindia.net/ejb/introduction/j2eedemo.shtml http
Sending hidden values
Sending hidden values  how to send more than one hidden values through javascript function . Main purpose is to remove href link (Query string should not appear in url bar
java mail sending with images
java mail sending with images  I need to send images through java mail without giving content path(i.e. we don't want hard code the image path)can you tell me the idea?   Please visit the following links: http
How to use AT Commands with J2ME?
How to use AT Commands with J2ME?  How to use AT Commands with J2ME? Thank you for your answer
execute dos commands
execute dos commands  how to execute dos commands using a java program
sending data to facebook
sending data to facebook  how to post data into facebook from a java program
Sending email without authentication
Sending email without authentication  Hi sir, Am doing a project in JSP, in that i want to send mail without any authentication of password so send.../mail/sending-an-email-in-jsp.shtml
sending sms from laptop to mobile
sending sms from laptop to mobile   sending sms from laptop to mobile for multi users
sending sms from laptop to mobile
sending sms from laptop to mobile   sending sms from laptop to mobile for multi users
Implementing voice commands
Implementing voice commands  Am trying to write a java program to implement voice commands within a windows platform using preferably java (though any language will do). I would be glad for any tips and procedures that would help
MySQL Commands
MySQL Commands       In this section, we are going to read about the mysql commands. Each... of commands. To see list of mysql commands, you type help or \h on the mysql>
ModuleNotFoundError: No module named 'build_commands'
ModuleNotFoundError: No module named 'build_commands'  Hi, My... named 'build_commands' How to remove the ModuleNotFoundError: No module named 'build_commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'commands-generator'
ModuleNotFoundError: No module named 'commands-generator'  Hi, My... named 'commands-generator' How to remove the ModuleNotFoundError: No module named 'commands-generator' error? Thanks   Hi, In your
ModuleNotFoundError: No module named 'commands-generator'
ModuleNotFoundError: No module named 'commands-generator'  Hi, My... named 'commands-generator' How to remove the ModuleNotFoundError: No module named 'commands-generator' error? Thanks   Hi, In your
ModuleNotFoundError: No module named 'commands-generator'
ModuleNotFoundError: No module named 'commands-generator'  Hi, My... named 'commands-generator' How to remove the ModuleNotFoundError: No module named 'commands-generator' error? Thanks   Hi, In your
ModuleNotFoundError: No module named 'dewi-commands'
ModuleNotFoundError: No module named 'dewi-commands'  Hi, My... 'dewi-commands' How to remove the ModuleNotFoundError: No module named 'dewi-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'dewi-commands'
ModuleNotFoundError: No module named 'dewi-commands'  Hi, My... 'dewi-commands' How to remove the ModuleNotFoundError: No module named 'dewi-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'django-commands'
ModuleNotFoundError: No module named 'django-commands'  Hi, My... named 'django-commands' How to remove the ModuleNotFoundError: No module named 'django-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'dodo_commands'
ModuleNotFoundError: No module named 'dodo_commands'  Hi, My... 'dodo_commands' How to remove the ModuleNotFoundError: No module named 'dodo_commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'jupyterlab-commands'
ModuleNotFoundError: No module named 'jupyterlab-commands'  Hi, My... named 'jupyterlab-commands' How to remove the ModuleNotFoundError: No module named 'jupyterlab-commands' error? Thanks   Hi
ModuleNotFoundError: No module named 'reahl-commands'
ModuleNotFoundError: No module named 'reahl-commands'  Hi, My... named 'reahl-commands' How to remove the ModuleNotFoundError: No module named 'reahl-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'robot-commands'
ModuleNotFoundError: No module named 'robot-commands'  Hi, My... named 'robot-commands' How to remove the ModuleNotFoundError: No module named 'robot-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'shell-commands'
ModuleNotFoundError: No module named 'shell-commands'  Hi, My... named 'shell-commands' How to remove the ModuleNotFoundError: No module named 'shell-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'slacktools-commands'
ModuleNotFoundError: No module named 'slacktools-commands'  Hi, My... named 'slacktools-commands' How to remove the ModuleNotFoundError: No module named 'slacktools-commands' error? Thanks   Hi
ModuleNotFoundError: No module named 'ssh-commands'
ModuleNotFoundError: No module named 'ssh-commands'  Hi, My Python... 'ssh-commands' How to remove the ModuleNotFoundError: No module named 'ssh-commands' error? Thanks   Hi, In your python
ModuleNotFoundError: No module named 'virtshell_commands'
ModuleNotFoundError: No module named 'virtshell_commands'  Hi, My... named 'virtshell_commands' How to remove the ModuleNotFoundError: No module named 'virtshell_commands' error? Thanks   Hi, In your
ModuleNotFoundError: No module named 'virtualenv-commands'
ModuleNotFoundError: No module named 'virtualenv-commands'  Hi, My... named 'virtualenv-commands' How to remove the ModuleNotFoundError: No module named 'virtualenv-commands' error? Thanks   Hi
Sending Emails In Java
Sending Emails In Java  I want to send emails from within a java program. I saw some online java programs to do that, but they needed me to enter a smtp server, but i don't know what that should be. Can someone please help
Sending Emails In Java
Sending Emails In Java  I want to send emails from within a java program. I saw some online java programs to do that, but they needed me to enter a smtp server, but i don't know what that should be. Can someone please help

Ads