Talks on Creativity

Continuing on the theme of Mihaly Csikszentmihalyi's creativity and Zen, here are a couple more online talks on creativity.

Tim Brown:The powerful link between creativity and play

In this talk on TED, Tim Brown, the CEO of Ideo the design consulting firm shares his ideas on creativity. One of the descriptions of the Zen state is to become a child again. This is what Brown challenges us to do. This humorous and insightful speech, shows us how we can tap into our talents:
1. By making our workspace more nurturing of our creative talents. Among some of the examples, Brown shares are the Swiss office of Google that has a slide.

2. Children are creative, as they are not afraid to restrict their talents. As we grow up, we forget this innate doorway to creativity. We tend to edit and restrict our 'flow'.

3. Playing and seriousness go hand in hand.

4. There is a time to play and a time to stop playing as there is with kids.

Watch the rest of this presentation for some fun exercises that Brown gives his audience.


Lewis Pinault, LEGO Senior Director and General Manager, LEGO Serious Play for Business and Mark Hansen, Senior Director, LEGO Digital Play Studio

This speech by Pinault and Hansen combines ideas on creativity with the wisdom of crowds. Lego blocks have a vibrant history and have been used as playtools for kids, and as modelling and simulation tools by engineers. Engineers have constructed lifesize models of Dinosaurs, retinal scanners,etc. It is the user community that has used Lego blocks to build things unanticipated by the company.

Lego managed to tap into this user base and help them cobuild some of their kits. They then followed up by bringing users and have them build user kits by themselves. Further Lego then decided to give users the tools to create, license and publish their creations.

Now Lego supports new businesses and partners to create emergences and simply let it happen. Audiences spread across the globe can now collaborate digitally on models and share ideas on 3D models.

The executives feel that the younger generations could use lego to simulate new models and solve future problems. I loved this talk.

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Roverbott Video 2

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Roverbott Video 1

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Project 2: a modified Roverbott

My Goal: To build a Roverbot and have it behave like a bumber car (Hit a wall, bounce back and change direction) and have the RoverBot respond to commands from the remoteControl
I used this Tutorial as reference

In the "specialized trails" section, read chapters, Overview, Behavior and Navigation.
Here are my Java files

HitWallS1.java
import josx.robotics.*;
import josx.platform.rcx.*;

public class HitWallS1 implements Behavior {

public boolean takeControl() {
return Sensor.S1.readBooleanValue();
}

public void suppress() {
// Motor.A.stop();
//Motor.C.stop();
Motor.A.forward();
Motor.C.forward();
}

public void action() {
// Back up:
Motor.A.backward();
Motor.C.backward();
try{Thread.sleep(1000);}catch(Exception e) {}
// Rotate by causing only one wheel to stop:
Motor.A.stop();
try{Thread.sleep(300);}catch(Exception e) {}
Motor.C.stop();
}
}

HitWallS2.java
import josx.robotics.*;
import josx.platform.rcx.*;

public class HitWallS2 implements Behavior {

public boolean takeControl() {
return Sensor.S2.readBooleanValue();
}

public void suppress() {
// Motor.A.stop();
//Motor.C.stop();
Motor.A.forward();
Motor.C.forward();
}

public void action() {
// Back up:
Motor.A.backward();
Motor.C.backward();
try{Thread.sleep(1000);}catch(Exception e) {}
// Rotate by causing only one wheel to stop:
Motor.A.stop();
try{Thread.sleep(300);}catch(Exception e) {}
Motor.C.stop();
}
}

DriveForward.java
import josx.robotics.*;
import josx.platform.rcx.*;

public class DriveForward implements Behavior {

public boolean takeControl() {
return true;
}

public void suppress() {
Motor.A.stop();
Motor.C.stop();
}

public void action() {
Motor.A.forward();
Motor.C.forward();
}
}

RemoteControlTest.java
/*
* $Log: RemoteControlTest.java,v $
* Revision 1.2 2002/11/01 16:01:28 mpscholz
* changed startup display
*
* Revision 1.1 2002/09/28 10:29:34 mpscholz
* initial version for the test example of the remotecontrol package
*
*/

import josx.platform.rcx.*;
import josx.platform.rcx.remotecontrol.*;
import josx.robotics.*;

/////////////////////////////////////////////////////////
/**
*
* This class is a main test program for the remote control sensor
* @author Matthias Paul Scholz (mp.scholz@t-online.de)
* @version 1.0 (24/09/2002)
*/
public class RemoteControlTest implements RemoteControlListener {

////////////////////////////////////////////
// constants
////////////////////////////////////////////
private static final char[] MESSAGE1 = {'M','S','G','1'};
private static final char[] MESSAGE2 = {'M','S','G','2'};
private static final char[] MESSAGE3 = {'M','S','G','3'};
private static final char[] MOTOR_DOWN = {'M','O','T','-'};
private static final char[] MOTOR_UP = {'M','O','T','+'};
private static final char[] PROGRAM1 = {'P','R','O','G','1'};
private static final char[] PROGRAM2 = {'P','R','O','G','2'};
private static final char[] PROGRAM3 = {'P','R','O','G','3'};
private static final char[] PROGRAM4 = {'P','R','O','G','4'};
private static final char[] PROGRAM5 = {'P','R','O','G','5'};
private static final char[] STOP = {'S','T','O','P'};
private static final char[] SOUND = {'S','O','U','N','D'};
private static final char[] READY = {'R','E','A','D','Y'};

////////////////////////////////////////////
// fields
////////////////////////////////////////////
/**
* current sensor states (activated = true)
*/
private boolean[] fSensorState = { false,false,false };


////////////////////////////////////////////
// constructors
////////////////////////////////////////////

////////////////////////////////////////////
/**
* creates a new instance of RemoteControlTest
*/
public RemoteControlTest() {
// reset to initial state
reset();
// display "ready"
TextLCD.print(READY);
} // RemoteControlTest()

////////////////////////////////////////////
// public methods
////////////////////////////////////////////

////////////////////////////////////////////
/**
* main method for test reasons
* @throws InterruptedException
*/
public static void main(String[] args)
throws InterruptedException {
Behavior b1 = new DriveForward();
Behavior b2 = new HitWallS1();
Behavior b3 = new HitWallS2();

Behavior [] bArray = {b1, b2,b3};
Arbitrator arby = new Arbitrator(bArray);


// instantiate remote control test instance
RemoteControlTest remoteControlTest = new RemoteControlTest();

// create remote control sensor
RemoteControlSensor sensor = new RemoteControlSensor();
sensor.addRemoteControlListener(remoteControlTest);

// reset engine
remoteControlTest.reset();
// just run until RUN button is pressed again
arby.start();
Button.RUN.waitForPressAndRelease();
System.exit( 0);




} // main()


////////////////////////////////////////////
// RemoteControListener interface methods
////////////////////////////////////////////

////////////////////////////////////////////
/**
* handler for the message 1 button
*/
public void message1Pressed() {
// display
TextLCD.print(MESSAGE1);
// current sensor state?
boolean sensorState = fSensorState[0];
// activate/passivate sensor
if(sensorState)
Sensor.S1.passivate();
else
Sensor.S1.activate();
// change sensor state
fSensorState[0] = !sensorState;
} // message1()

////////////////////////////////////////////
/**
* handler for the message 2 button
*/
public void message2Pressed() {
// display
TextLCD.print(MESSAGE2);
// current sensor state?
boolean sensorState = fSensorState[1];
// activate/passivate sensor
if(sensorState)
Sensor.S2.passivate();
else
Sensor.S2.activate();
// change sensor state
fSensorState[1] = !sensorState;
} // message2()

////////////////////////////////////////////
/**
* handler for the message 3 button
*/
public void message3Pressed() {
// display
TextLCD.print(MESSAGE3);
// current sensor state?
boolean sensorState = fSensorState[0];
// activate/passivate sensor
if(sensorState)
Sensor.S3.passivate();
else
Sensor.S3.activate();
// change sensor state
fSensorState[2] = !sensorState;
} // message3()

////////////////////////////////////////////
/**
* decrements motor power
* @param aMotor the motor
*/
public void motorDownPressed(Motor aMotor) {
// display
TextLCD.print(MOTOR_DOWN);
// get current power
int power = aMotor.getPower();
// get current state
if(power==0) {
// move backward
aMotor.setPower(++power);
aMotor.backward();
} else {
if(aMotor.isForward())
// decrease forward movement
aMotor.setPower(--power);
else {
// move backward
aMotor.setPower(Math.min(7,++power));
aMotor.backward();
} // else
} // else
// display power of motors
displayMotorsPower();
} // motorDownPressed()

////////////////////////////////////////////
/**
* increments motor power
* @param aMotor the motor
*/
public void motorUpPressed(Motor aMotor) {
// display
TextLCD.print(MOTOR_UP);
// get current power
int power = aMotor.getPower();
// get current state
if(power==0) {
// move forward
aMotor.setPower(++power);
aMotor.forward();
} else {
if(aMotor.isBackward())
// decrease backward movement
aMotor.setPower(--power);
else {
// move forward
aMotor.setPower(Math.min(7,++power));
aMotor.forward();
} // else
} // else
// display power of motors
displayMotorsPower();
} // motorUpPressed()

////////////////////////////////////////////
/**
* handler for the program 1 button
*/
public void program1Pressed() {
// display
TextLCD.print(PROGRAM1);
Motor.A.forward();
Motor.C.forward();



} // program1()

////////////////////////////////////////////
/**
* handler for the program 2 button
*/
public void program2Pressed() {
// display
TextLCD.print(PROGRAM2);
Motor.A.backward();
Motor.C.backward();
} // program2()

////////////////////////////////////////////
/**
* handler for the program 3 button
*/
public void program3Pressed() {
// display
TextLCD.print(PROGRAM3);
Motor.A.stop();
Motor.C.forward();
} // program3()

////////////////////////////////////////////
/**
* handler for the program 4 button
*/
public void program4Pressed() {
// display
TextLCD.print(PROGRAM4);
Motor.A.forward();
Motor.C.stop();
} // program4()

////////////////////////////////////////////
/**
* handler for the program 5 button
*/
public void program5Pressed() {
// display
TextLCD.print(PROGRAM5);
} // program5()

////////////////////////////////////////////
/**
* handler for the sound button
*/
public void soundPressed() {
// display
TextLCD.print(SOUND);
// sound
Sound.beep();
} // sound()

////////////////////////////////////////////
/**
* handler for the stop button
*/
public void stopPressed() {
// display
TextLCD.print(STOP);
// reset
reset();
} // stop()

////////////////////////////////////////////
// public methods
////////////////////////////////////////////

////////////////////////////////////////////
/**
* resets the engine to its initial state
*/
public void reset() {
// stop motors
Motor.A.stop();
Motor.A.setPower(0);
Motor.B.stop();
Motor.B.setPower(0);
Motor.C.stop();
Motor.C.setPower(0);
// passivate sensors
Sensor.S1.passivate();
Sensor.S2.passivate();
Sensor.S3.passivate();
for(int i=0;i
format: 0
*/
private void displayMotorsPower() {
int powers = Motor.A.getPower() * 100
+ Motor.B.getPower() * 10
+ Motor.C.getPower();
LCD.showNumber(powers);
} // displayMotorsPower()

} // class RemoteControlTest

Compiling, Linking and Loading the program on to the RCX

Step 1. Run setenv from C:\Lejos\Project to initialize your environment.
********************************************************
C:\Lejos\Project\RoverBot>..\setenv

C:\Lejos\Project\RoverBot>set LEJOS_HOME=C:\Lejos\lejos

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\classes.jar;.;.;C:\PR
OGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:\PROGRA~1\J
MF21~1.1E\lib;C:\WINDOWS\java\classes;.;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\rcxport.jar;C:\Lejoslejos\lib\classes.jar;.;.;C:\PROGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21
~1.1E\lib\jmf.jar;C:\PROGRA~1\JMF21~1.1E\lib;C:\WINDOWS\java\classes;.;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\BlackBox.jar;C:\Lejos
\lejos\lib\rcxport.jar;C:\Lejos\lejos\lib\classes.jar;.;.;C:\PROGRA~1\JMF21~1.1E
\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:\PROGRA~1\JMF21~1.1E\lib;C:WINDOWS\java\classes;.;;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\rcx.jar;C:\Lejos\lejo
s\lib\BlackBox.jar;C:\Lejos\lejos\lib\rcxport.jar;C:\Lejos\lejos\lib\classes.jar
;.;.;C:\PROGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:PROGRA~1\JMF21~1.1E\lib;C:\WINDOWS\java\classes;.;;;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\comm.jar;C:\Lejos\lej
os\lib\rcx.jar;C:\Lejos\lejos\lib\BlackBox.jar;C:\Lejos\lejos\lib\rcxport.jar;C:
\Lejos\lejos\lib\classes.jar;.;.;C:\PROGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~
1\JMF21~1.1E\lib\jmf.jar;C:\PROGRA~1\JMF21~1.1E\lib;C:\WINDOWS\java\classes;.;;;
;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\jtools.jar;C:\Lejos\l
ejos\lib\comm.jar;C:\Lejos\lejos\lib\rcx.jar;C:\Lejos\lejos\lib\BlackBox.jar;C:Lejos\lejos\lib\rcxport.jar;C:\Lejos\lejos\lib\classes.jar;.;.;C:\PROGRA~1\JMF21
~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:\PROGRA~1\JMF21~1.1E\li
b;C:\WINDOWS\java\classes;.;;;;;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\pcrcxcomm.jar;C:\Lejo
s\lejos\lib\jtools.jar;C:\Lejos\lejos\lib\comm.jar;C:\Lejos\lejos\lib\rcx.jar;C:
\Lejos\lejos\lib\BlackBox.jar;C:\Lejos\lejos\lib\rcxport.jar;C:\Lejos\lejos\libclasses.jar;.;.;C:\PROGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\libjmf.jar;C:\PROGRA~1\JMF21~1.1E\lib;C:\WINDOWS\java\classes;.;;;;;;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\rcxrcxcomm.jar;C:\Lej
os\lejos\lib\pcrcxcomm.jar;C:\Lejos\lejos\lib\jtools.jar;C:\Lejos\lejos\lib\comm
.jar;C:\Lejos\lejos\lib\rcx.jar;C:\Lejos\lejos\lib\BlackBox.jar;C:\Lejos\lejos\l
ib\rcxport.jar;C:\Lejos\lejos\lib\classes.jar;.;.;C:\PROGRA~1\JMF21~1.1E\lib\sou
nd.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:\PROGRA~1\JMF21~1.1E\lib;C:\WINDOWSjava\classes;.;;;;;;;;

C:\Lejos\Project\RoverBot>set CLASSPATH=C:\Lejos\lejos\lib\vision.jar;C:\Lejos\l
ejos\lib\rcxrcxcomm.jar;C:\Lejos\lejos\lib\pcrcxcomm.jar;C:\Lejos\lejos\lib\jtoo
ls.jar;C:\Lejos\lejos\lib\comm.jar;C:\Lejos\lejos\lib\rcx.jar;C:\Lejos\lejos\lib
\BlackBox.jar;C:\Lejos\lejos\lib\rcxport.jar;C:\Lejos\lejos\lib\classes.jar;.;.;
C:\PROGRA~1\JMF21~1.1E\lib\sound.jar;C:\PROGRA~1\JMF21~1.1E\lib\jmf.jar;C:\PROGR
A~1\JMF21~1.1E\lib;C:\WINDOWS\java\classes;.;;;;;;;;;

C:\Lejos\Project\RoverBot>set RCXTTY=USB

C:\Lejos\Project\RoverBot>set PATH=C:\Lejos\lejos\bin;C:\WINDOWS\system32;C:\WIN
DOWS;C:\WINDOWS\System32\Wbem;C:\ClearCase\bin;C:\Program Files\Netegrity\SiteMi
nder Web Agent\bin;C:\Program Files\Netegrity\SiteMinder Web Agent\bin\thirdpart
y;c:\jdk1.3.1_02\bin;c:\jdk1.3.1_02\jre\bin;"C:\Program Files\Hummingbird\Connec
tivity\7.00\Accessories\";C:\Program Files\Microsoft Visual Studio\Common\ToolsWinNT;C:\Program Files\Microsoft Visual Studio\Common\MSDev98\Bin;C:\Program Fil
es\Microsoft Visual Studio\Common\Tools;C:\Program Files\Microsoft Visual Studio
\VC98\bin;C:\java\ant\apache-ant-1.5.3-1\bin;C:\Program Files\SSH Communications
Security\SSH Secure Shell;
...............................................................................

Step II Compile Source files
*****************************************************************************

C:\Lejos\Project\RoverBot>lejosjc.bat RemoteControlTest.java DriveForward.java
HitWallS1.java HitWallS2.java
...............................................................................

StepIII Link compiled files into a bin file
*****************************************************************************

C:\Lejos\Project\RoverBot>lejoslink.bat -o RoverBot.bin RemoteControlTest

...............................................................................

Step IV Download the Compiled files into the RCX

C:\Lejos\Project\RoverBot>lejosdl.bat RoverBot.bin

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Remote Control

Please note that the Remote Control does not come with Mindstorms but comes as part of the ultimate accessory kit.

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Roverbott Side view

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Roverbott Back view

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Roverbott Front view

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Roverbott Top view

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There's the 'Hello'

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Setting up the environment and loading the firmware

Use this link as reference for this section.

Setting up the environment

I have created a directory c:\Lejos\Project.

I have a batch file setenv.bat with th following content in it

#beginning of file
set LEJOS_HOME=C:\Lejos\lejos

set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\rcxport.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\BlackBox.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\rcx.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\classes.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\comm.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\jtools.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\pcrcxcomm.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\rcxrcxcomm.jar;
set CLASSPATH=%CLASSPATH%;C:\Lejos\lejos\lib\vision.jar;
#end of file


This sets up my environment.

Loading the Firmware

1. Create a file, LoadFirmware.bat in c:\Lejos\Project with the following line.
firmdl.bat
2. Plug in the USB IR tower.
3. Turn on RCX and place it near the tower.
4. Open up a command prompt,type in the commands

cd c:\Lejos\Project
LoadFirmware.bat

The output will look like this:


C:\Lejos\Project>firmdl.bat
Segment 0 length = 13686
Segment 1 length = 2938
Deleting firmware
Firmware deleted
Downloading firmware
Total image size = 16624(17k)
Firmware downloaded
Unlocking firmware
Firmware unlocked

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Hello World

Here are the steps to creating my HelloWorld.
I have run setenv in the previous set(previous blog)
If your are starting with a fresh command prompt, run it using the previous blog entry as reference.

1. Create a directory HelloWorld under C:\Lejos\Project
2. Create a file HelloWorld.java with the following lines. This program can also be found in

      import josx.platform.rcx.*;

        /**
         * @author calvinedu">Ryan VanderBijl
         */

        /* This class uses char[] to display text on the LCD.
         * Strings aren't really supported by TinyVM. :-(
         *
         * This program, after d/ling, waits for you to press the RUN
         * button, and then displays "hello", for a small delay, and then
         * displays "world". (Then a small delay, and then it returns to
         * the TinyVM OS).
         */

        public class HelloWorld
        {
          public static void main (String[] aArg)
          throws Exception
          {
             LCD.clear();
             TextLCD.print ("hello");
             Thread.sleep(2000);
             TextLCD.print ("world");
             Thread.sleep(2000);
          }
        }
Go to  this link and follow the directions on how to build download and run it.

Here is my output
...........................................................................................
c:\>cd C:\Lejos\Project
C:\Lejos\Project>mkdir HelloWorld

C:\Lejos\Project\HelloWorld>lejosjc.bat HelloWorld.java
C:\Lejos\Project\HelloWorld>lejoslink.bat -o HelloWorld.bin HelloWorld
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
Warning: Can't open zip/jar file: C:\Lejos/lib/classes.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcxport.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\BlackBox.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\rcx.jar
Warning: Can't open zip/jar file: C:\Lejos\lejos\lib\comm.jar
C:\Lejos\Project\HelloWorld>
C:\Lejos\Project\HelloWorld>dir
Volume in drive C has no label.
Volume Serial Number is F0CC-206D

Directory of C:\Lejos\Project\HelloWorld

C:\Lejos\Project\HelloWorld>
C:\Lejos\Project\HelloWorld>dir
Volume in drive C has no label.
Volume Serial Number is F0CC-206D

Directory of C:\Lejos\Project\HelloWorld

04/04/2005 11:03 PM .
04/04/2005 11:03 PM ..
04/04/2005 11:03 PM 2,789 HelloWorld.bin
04/04/2005 11:02 PM 554 HelloWorld.class
04/04/2005 11:02 PM 658 HelloWorld.java
3 File(s) 4,001 bytes
C:\Lejos\Project\HelloWorld>lejosdl.bat HelloWorld.bin
C:\Lejos\Project\HelloWorld>
NOW press the red button to display 'Hello' on the LCD of the RCX. The 'World' will come a couple of seconds later,

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