Friday, September 20, 2013
Simple Kitchen Computing Interface: Wiimote + Laptop
You will need:
Download the attached Osculator patch and save it somewhere convenient.
Turn your Arduino Uno into an USB-HID-Mididevice
Step 1: Gather your materials
Things you need:
- A compatible Arduino board. I'm using the Arduino Uno here.
- An AVR-ISP programmer. The AVRISP mkII works great and is used here.
- Software to use your ISP programmer; up and running. I'm using the AVR crosspack with avrdude on my MacBook Pro.
- The HIDUINO software from here http://code.google.com/p/hiduino/downloads/list
To get ready for the next steps you have to unpack the HIDUINO archive.
In the unpacked file move to the folder "Arduino Libraries". Inside you will find another folder called "HIDUINO_MIDI_Lib".
Move this folder into your Arduino - Libraries folder.
The final result should look like this /Users/phil/Documents/Arduino/Libraries/HIDUINO_MIDI_Lib
We haven't moddified the original USB firmware yet, so it's still intact
and you can use it to flash an example sketch to your Arduino.
Try the first sample from the HIDUINO archive. It's located under "Arduino Example Sketches" and really easy to understand.
You don't have to do this yet, but it allows you to test your device immediately after reflashing the USB firmware.
Step 2: Programming the new USB firmware
Okay, the first thing we want to do is to reflash the Uno's 8u2 chip.
Therefore we need to do the following:
- Connect your ISP to your Arduino. (Be sure to connect it in the right
way! The pinheader should be marked with a little white dot! It marks
pin number one! On the ISP cable it's marked with a little arrow.)
- We want to flash the following file: HIDUINO/CompiledFirmwares/HIDUINO_MIDI_Uno.hex
- I'm using avrdude in a terminal window on my Mac. I used the following command for an Arduino Uno and an AVRISP mkII:
avrdude -p at90usb82 -F -P usb -c avrispmkii -U
flash:w:HIDUINO_MIDI_Uno.hex -U lfuse:w:0xFF:m -U hfuse:w:0xD9:m -U
efuse:w:0xF4:m -U lock:w:0x0F:m
- after 6-10 seconds the new firmware should be flashed successfully!
Your device should show up in your system profiler now! If not just
unplug it and replug it back again :) Then you can move on to the next
step! :)
- In case you want to restore the original frimware of the 8u2 you can find it in your Arduino application folder. On a Mac its located under:
/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/firmwares/UNO-dfu_and_usbserial_combined.hex
- Reflash it using avrdude an this command:
avrdude -p at90usb82 -F -P usb -c avrispmkii -U
flash:w:UNO-dfu_and_usbserial_combined.hex -U lfuse:w:0xFF:m -U
hfuse:w:0xD9:m -U efuse:w:0xF4:m -U lock:w:0x0F:m
There are tons of instructables and tutorials on how to flash an AVR
using avrdude. This is just a short sum up of paths and commands ;)
Step 3: Programming the Uno using ISP
After successfully flashing the USB firmware you can't upload sketches over usb anymore.
I wanted to keep the ability of using the Arduino software to upload the sketches over ISP.
Therefore you have to edit the boards.txt located under:
/Applications/Arduino.app/Contents/Resources/Java/hardware/arduino/boards.txt
Add the following code to the textfile and save it.
##############################################################
avrispmkii.name=AVRISP mkII w/ ATmega328
avrispmkii.upload.protocol=avrispmkii
avrispmkii.upload.maximum_size=32256
avrispmkii.upload.speed=19200
avrispmkii.upload.using=avrispmkii
avrispmkii.bootloader.low_fuses=0xff
avrispmkii.bootloader.high_fuses=0xde
avrispmkii.bootloader.extended_fuses=0x05
avrispmkii.bootloader.path=optiboot
avrispmkii.bootloader.file=optiboot_atmega328.hex
avrispmkii.bootloader.unlock_bits=0x3F
avrispmkii.bootloader.lock_bits=0x0F
avrispmkii.build.mcu=atmega328p
avrispmkii.build.f_cpu=16000000L
avrispmkii.build.core=arduino
##############################################################
Now it shows up in the Arduino software.
Just choose the newly created board, connect your ISP the right way and upload your sketches like you always do :)
Browse to your HIDUINO folder and upload the following example (if you
haven't done it already ;)): /Users/phil/Downloads/HIDUINO/Arduino
Example Sketches/HIDUINO_MIDI_Example01/HIDUINO_MIDI_Example01.pde
Thats it!! Fire up Ableton Live or any other music program and listen to
your Arduino generated notes!! (Don't forget to configure you music
program to talk to your device.)
It's my first Instructable and I hope it helped you a bit to get the HID/Midi running :)
In a few weeks I'll show you how to create the hardware for a 4-channel midi controller :)
How to Install Flash on Ubuntu Linux, the easy way!
Step 1: Getting the required stuff
before doing this please follow This instructable, otherwise this will not work you can find it
ok first you need to go to http://www.adobe.com
then click the "get flash" icon on the right hand side of the page. It
should automatically detect the fact that you are using Linux and give
you the correct file types.
click download, and save to disk the tar.gz file you DON'T want the .rpm or YUM files.
Step 2: Actually installing it
it won't work yet, go to a website that uses flash, a good example would be www.youtube.com
try and play a video, it won't work thats what we are going to do now, make it work, over the next two steps!
go ahead and open the tar.gz file, and click extract, a new window will pop up, asking you where you want to extract it to, select your
desktop (it should select your desktop by itself anyway).
Step 3: Installing it
actually some of the online tutorials and that I have read make this bit
seem really complicated, there is a way to do this using the sudo
(super user do) command, but that is quite complex for first time users
also if you follow this method rather than the sudo method (which is
harder) you will have to do this for every user on you computer (i
think.)
anyway, go to the desktop, you will see a folder called the same
thing as the tar.gz file you downloaded (something like
install_flash_9_linux)
open that folder, you will see that there are two icons in that, click on the FlashPlayer-Installer Icon
now you should get a message, choose "run in terminal" now here is
the first time that you are actually going to have to use a command
line, and it is really easy!
make sure you read all the instructions as they come up, make sure
you have no browsers running, that means Firefox Sea monkey etc.
when you see the "install action summary" press Y (yes) and enter,
if you press Q it will give you a load of info about it (boring) or N
will not install it (it means no).
let it do its thang, and when it is finished, close it and start firefox, go to youtube and viola
Step 4: After Thoughts
I believe you can preform a similar procedure to this using Java although I have not installed it (I have no need for it, though obviously getting the required files will be different seeing as it will be from sun micro systems not adobe)
Also although this instructable can help you avoid using Ubuntu's command line (terminal) as much as possible it is a good idea to be able to use it and be relatively competent in its use, because there will be times when you have to use it!
but you will in time get to learn the basic commands such as "sudo apt-get install" etc in time, its all part of the Ubuntu experience (how corny does that sound)
I do read my comments so if this isn't working for you, please use the comments section and I shall endeavor to to help you, (after all it is part of the concept of Ubuntu, remember "I am because you are."
Peace
F1x0r
Brown Sugar Java Fizzie
Step 1: Ingredients
2-2/3 cups water
1 c. coffee beans (or pre-ground coffee), medium to coarse grind
Coffee press or strainer lined with cheesecloth
Whole spices, if desired
Seltzer water
Vanilla extract (optional)
Step 2: Heat water and add ground coffee
In a saucepan, bring the water to just boiling, and stir in the ground coffee, and spices (if desired).
Remove from heat, and pour into coffee press, or cover and leave on stove top if using a colander to drain (next step).
Step 3: Steeping
Allow the coffee to steep until cool (up to four hours).
When the coffee has cooled:
For the coffee press, simply push the handle down as far as it will go.
If you're using a cheesecloth-lined colander, Set the colander
(strainer) over a bowl, pour the coffee, grounds and all, into the
cheesecloth, and bring up the sides of the cheesecloth, forming the coffee grounds into a ball. Twist and squeeze!
You should have about 2 cups of insanely strong coffee.
Step 4: "Cooking" the syrup
The word "cooking" is in quotes, because you really don't want to do
much more than heat the brown sugar until it dissolves in the coffee.
If you allow the syrup to boil, you will wind up with a heavy concoction
that won't dissolve smoothly in the seltzer. It might work for an ice
cream topping, but......HEY! There's your second batch!
In the saucepan, combine the brown sugar and coffee over medium-low
heat, and stir until the sugar is dissolved -- usually right around the
time the mixture is thoroughly heated (too hot to touch), but not
boiling.
Remove from the heat and allow to cool. If you see a thin, foamy layer on top, just stir it right back in.
Adding 1 teaspoon of vanilla is optional, but it's a very nice touch.
Store in the fridge -- the syrup should keep well for at least several weeks.
Step 5: Finishing
Make sure your seltzer is very cold. If possible, have the syrup chilled as well.
Measure out an ounce or two of syrup.
Fill your glass halfway with seltzer, and then very, very slowwwwwwly,
begin to pour the syrup into the glass. If the seltzer foams up, just
pause and wait until everything settles, stir gently, and then continue
adding. Taste-test intermittently. Keep track of how much syrup you
add, so you'll be able to establish your preferred ratio of seltzer to syrup.
It's Brunchtime!
Enabling non free software on Ubuntu 7.10 (real quick and easy)
Step 1: The one and only step to doing this
look at the top of the screen,
choose system, go to administration and click on "software sources"
Ubuntu will ask you for your password so enter it. Make sure no one
including the government is looking over your shoulder. *Puts on tin
foil hat*
ok now it will open a program with some check box options, check
them all, this will allow you to use all repositories, including the
restricted and multiverse repositories.
done.
Integrate Ardublock with Arduino IDE
Step 1: Install Arduino IDE
Download any version of Arduino IDE (here i'm using ver1.0.5) and
install it on computer (executable arduino installer is available,so you
no need to unzip and copying files)
You can find a desktop shortcut as "Arduino"
Step 2: Download Ardublock
Use this link to download ardublock-all.jar
http://download1us.softpedia.com/dl/6200a2d98a8df7e8fcd3c120668daa45/51c06f70/100229541/software/programming/ardublock-all-20130607.jar
Rename ardublock-all-20130607.jar to ardublock-all.jar and copy this file.
Step 3: Integrate
1.Now open "My documents" and create new folder as "Arduino".
2.Open "Arduino" folder and create new folder as "tools".
3.Open "tools" folder and create new folder as "ArduBlockTool".
4. Open "ArduBlockTool" folder and create new folder as "tool".
5.Open "tool" and paste "ardublock-all.jar" here.
Step 4: Change sketchbook location
Now open Arduino IDE and press ctrl+,(comma) then a prereferences window will open here you will find Sketchbook location and change sketchbook
location
to E:\Documents\Arduino\tools\ArduBlockTool\tool\ardublock-all.jar then
press "OK".
Note: Location is deponds upon where you have ardublock-all.jar
Step 5: Restart Arduino IDE and Done
Now you can find Ardublock under tool menu Tool>Ardublock and click it.
Step 6: Start Programming in GUI
Done!!!!!!!!!!!!!!!
Time Lapse Photography - the lazy way!
Step 1: What you will need
Hardware:
Old Java (MIDP 2.0) compatible phone
Some sort of datacable for the phone
Phone carrycase
Software:
J2ME Development kit
FAR manager (optional - depends on state of phone)
Step 2: Write the software
This is the hard part, believe it or not, there isnt any java based software that does this for phones. There are a couple of python based ones that will work on a Nokia phone, but not my nokia phone :/
I've attached the java files here, I'm NOT attaching the compiled versions though. If you're clever enough to compile/package these then you're clever enough to fix things if they dont work :p
Basically, it presents a menu where you can set the name of the image-set and the timelapse duration. It then spawns a timer that takes photo's and saves them on the memory card.
These are written with the SonyEricson W800 in mind. They should work with any midp2.0 compatible phone though
Step 3: (Optional) hack phone firmware to be less annoying
All apps that access the phone camera and memory must have permission to do so, otherwise they ask for it. Everytime.
Yes, that gets annoying so..
To
fix this you have to "sign" the application, which costs money. Not
interested! A cunning workaround is to hack the phones firmware to not
prompt. Thats done with the FAR manager software and associated plugins
For the W800, the patches are here. They can ruin your phone if you dont pay attention. I'm not supplying instructions here, I dont want hundreds of "Lol I bricked my phone fix it plzzzz kthxbye" comments
My phone now no longer asks me for permission to run the software
Step 4: Use it!
Start the software up, on my phone its in the file manager, then "Games" (because of the rubbish transfer software)
Set the duration (I've chosen 60 seconds here)
Set the name (new, because I'm too lazy to type them)
Hit the "more->go" button and put the camera in the case. Wear it!
Step 5: A test!
heres the first test, a standard time lapse clock gif :)
I did wear this on my bag whilst wandering to the shop, sure enough
I'd left the lens cap shut. I'm planning some sort of strap to attach it
to my bag strap and point forward. The pictures are about 30kb each and the camera has a 512mb memory card, so thats about 17000 pictures
before it fills up. At 15 second durations thats about 70 hours worth of
clips.
So I might just leave this on all day and see what happens :)
JAVA - Introduction
Step 1: JAVA - Getting the tools
Now, as you probably know, we need some tools to start writing JAVA code. You could just use your notepad, and execute it from the command
line, but we will get an editor, because it is easier and faster. We
will get the eclpise JAVA editor. (IF HAVING TROUBLE COMMENT)
STEP #1) Go to the website here and click the green download button
STEP #2) Save it to your desktop and click "OK"
STEP #3) When it finishes downloading, right click the file and select "Extract all"
STEP #4) You should see a new folder appear on your desktop, and make sure it has the file "eclipse.exe" in it.
Now
double click on the eclipse.exe file with the icon of a solar eclipse.
It will ask you to create a workspace when it opens. Enter "myWork" in
the name bar, and click OK. You should then see a welcome screen, and in
the top right corner click the "workbench" button.Now you should see
something like the 1st image at the bottom.
After that click "File" > "New" > "Java Project".
In
the name box, type "myProj", and click next, and then finish. Now, in
the project explorer(left of screen) you should see a folder called
"myProj". The project explorer is where you can see all of your
files.The area in the middle is the mainstage(coding section) and the
right part is the Library, which gives us a list of functions and
classes.(Will talk about classes and functions later). The bottom part
is the error list, if we have any run-time or code problems, they will
be there. It is also the console window where output is displayed.
Finaly,
right-click the "myProj" folder we created and go to "New" >
"Class". In the name bar type "myFirst". Click finish. You should see
the 2nd picture at the bottom for a closer look.
Now you are
ready to start writing code in JAVA. In the next step we will write your
first program, and discuss some JAVA elements.
Step 2: JAVA - Getting to work with JAVA
In JAVA, everything is based on classes, sections of code with commands to execute. There are also these things called methods,smaller
sections of code that contain functions too.Usually there are multiple
methods in a class,that interact with each other based on values of
certain variables and return a value. Those
methods are packed into a class, and then classes with methods can
interact with other classes and print the return value on the screen.
There is
also something called a main method,
the method the compiler searches for first. Based on the instructions
the main method gives, the compiler can move to different classes to
execute different methods,or just stay in the main method.
For now lets just create a main method. In your "myFirst" class type the code in bold:
public class myFirst {
public static void main(String[] args)
{
}
}
Now lets discuss this code. Each method is based on the following syntax:
[accessSpecifier] [returnType] [methodName] ( [parameters] )
{
[methodBody]
}
The
access specifiers in this case are "public" and "static". Any method
can be "public" or "private". "Public" means the method can be accessed
by any class. "Private" means that the method can be accessed by only
the class it belongs to. I will explain the "Static" key word later.Here
we made a public static main method with the name main, and parameters
of "String[] args"(I won't explain the parameters now). In the method
body we type all of the commands we wan't to execute. The method body's and class body's are always located between the curly braces.
NOTE:
JAVA is a case sensitive language, so when you type commands, you must
type them exactly as specified, or you will get an error!!!!!!
Now type the code in bold into your main method:
public class myFirst {
public static void main(String[] args)
{
System.out.println("Hello world!");
}
}
By
now you should have the code in the 1st picture. Now go to "Run" >
"Run", and click "OK" when the dialog box appears, and at the
bottom(console window) you should see the text "Hello world!" printed.
Check the second image for reference.
Here we used the command
System.out.println to print a line on the screen. The "System", is a
class containing many functions. The "out" was that we wanted to print
OUT to the screen(or output) and the method "println" means; print line.
Then in brackets, and in quotation marks(because this is a string
value(value containing words)) we included the text we wanted to
print,and ended the line with a semi-colon(;). NOTE: All lines in JAVA must end in semi-colons, except lines when we declare classes or methods. We
can also use "print", but the difference between "print" and
"println" is that "print" prints text on a line, but "println" means to
print the text, and end the line, meaning that if the next command is
"print", the text will be printed on a new line.
At this point, I
would like to apologize for the bad quality of my images.I have included
some SELF-CHECK questions at the bottom. In the next step I will
include the answers to them.In the next step I will also introduce you
to the basic value types.
SELF-CHECK:
#1) Write a program to print the word "cheese" letter by letter.
HINT: Use the "print" command
#2) Use the "print" and "println" commands to experiment.
#3) What is wrong with this line of code:
System.out.println(Hello world!);
#4) What will you get if you run these lines of code:
System.out.print("h");
System.out.print("i");
System.out.println("per-");
System.out.print("son");
Step 3: JAVA - Basic Variable Types
The answers to the previous SELF-CHECK questions are:
#1) System.out.print("c");
System.out.print("h");
System.out.print("e");
System.out.print("e");
System.out.print("s");
System.out.print("e");
#2) No definite answer.
#3) The text in brackets was not in quotation marks.
#4) hi per-
son
There will also be self check questions at the end of this step.
There are many data types. In this instructable we will go over only the basic ones, and it will still take a couple of steps.
All variables work on the syntax below.
[dataType] [variableName] = [value];
ex.
int myNum = 8;
int type:
The
"int" type, means integer. Works on the same syntax as above. There are
no quotes needed to hold the value for any numerical type. Any int
variables range from a minimum of -2,147,483,648 to a maximum value of
2,147,483,647. Most common integers will fit in this range, but if they
don't use "long" instead.
ex.
int nine = 9;
long type:
The "long" type is a long version of the "int" command. Ranges from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.
float type:
The "float" type is a floating-point number, which means it contains a decimal value.
double type:
The "double" type is a floating-point number, which can hold a bigger value.
string type:
The "string" type holds a text value. The text(value) must be inclosed in double quotes.
ex.
String greeting = "Hi blank";
Those
were the basic data types. To print any of them just write the variable
name in the parameters of the "println" method without quotes.
ex.
int myNum = 52930;
System.out.println(myNum + "Is the value of myNum");
The
code above would print "52930 Is the value of myNum" on the screen. And
by the way we used there a plus sign to combine a String to the line we
were printing, so it would print a String value after the value of
myNum. You can use the plus sign to add variables in the "println"
command and add string values. Check out the two pictures at the bottom
to see what I did.
This is section 1/2 of the number types, in
the next section I will teach you some simple mathematical operators you can use on the variables.
Step 4: JAVA - Mathematical Operators
This is section 2/2 of "Basic variable types".
Here I will introduce mathematical operators. There is the "+" sign
which means addition. It is used for adding numbers.
ex.
int sum = 5 + 579;
It is also used to combine strings in the "println" method.
ex.
System.out.println("This is " + "three strings " + "combined.");
Notice that before adding another string on the first and second strings I used a space at the end to make it look normal.
There is also the "-" sign as you have guessed, and it is used only to subtract numbers.
ex.
int subtraction = 9 - 6;
Also there is the multiplication operator, which is represented by a "*" in java(asterisk). It is used to multiply numbers.
ex.
int multiplication = 756 * 15;
And there is the division operator, which is represented by the "/"(slash). It is used to divide numbers.
ex.
int division = 50 / 5
Also there is a modulo operator, which is represented by the "%". Modulo
is used to focus on the remainder of two numbers, if there is any.
ex.
int modulo = 10 % 9;
You do not need to add quotes for the numbers if you use the numbers in
the "println" method, or they will be interpreted as string values.
ex.
System.out.println(6 + 7);
COMMON ERROR 1:
System.out.println("6" + "7" );
The code above returns 67, not 13. To avoid this delete the quotes.
The variable names can be used to identify values. Such as:
int myNum = 9;
System.out.println("The value of myNum is " + myNum);
As long as "myNum" doesn't have any variables around it, the program
will print "The value of myNum is 9". You can also use the operators to
perform operations in the "println" method to return quick results.
ex.
System.out.println(8 * 10);
My pictures will be basicly on everything we covered in this section,
but don't forget to check them out. In the next step there will be
little new material, but there will be a test that covers everything we
learned so far. Here are the self check questions:
SELF-CHECK #1:
Write a program to calculate the modulo of 789 to 2, and print the result on the screen.
SELF-CHECK #2:
Describe the "int" data type, with at least the basic characteristic.
SELF-CHECK #3:
Create a string variable called "greeting" with a friendly message in
it leaving out the name(ex. Hello _______). Then create a string called
"name" with the value of your name. Then combine these variables and you
should get your final message.
SELF-CHECK #4:
How do you represent multiplication in JAVA?(What sign do you use)
Step 5: JAVA - 1st Test / Commenting
Here are the answer to the previous SELF-CHECK questions:
#1) System.out.println(789 % 2);
#2) The "int" data type holds an integer.
#3) String greeting = "Hello ";
String name = "JAVA Teacher"
System.out.println(greeting + name);
#4) You use an "*"(asterisk)
OK, now for this instructable I will only include a little new material, and the link to my test.
In JAVA there is something called "commenting". That means to comment your work.
There
are 2 types of comments you can make a single-line comment(see ex. 1)
and a multi-line comment(see ex. 2) . The examples for these comments
are included. For a single-line comment you have to put 2 slashes before
the text, everything to the right of the slashes is considered a
comment, and ignored by the JAVA compiler. A simple multi-line comment
is in between the slash and 2 asterisks, and ends with the asterisk and a
slash. An advanced multi-line comment discribes a method, we will go
over this later.
JAVA ADVICE:
I suggest you to comment everything, even the simplest things. Because
if someone is going through your work and may have trouble understanding
your code. It might not be obvious that the variable d stands for dollars . And I also suggest you to save your work frequently.(I lost a lot of code because of this once)
ex. 1
int num2 = 78; //Create an integer, "num2" with the value of 78
ex. 2
/**
Create an integer, "num2" with the
value of 78
*/
int num2 = 78;
OK, good luck on the test. :-) (LINK AT BOTTOM, READ NOTE)
NOTE:
I
really rushed through making the quiz, so on #2 I marked the wrong
answer as right. The correct answer for that one was the last option. I
am very sorry for this inconvenience.
The link to the test is here. There's a picture at the bottom of the welcome screen of the test too.Good luck and don't forget to read my next tutorial! :-)
Programing with Java using Command Prompt
Step 1: Download latest JDK
1.Follow this link: http://www.oracle.com/technetwork/java/javase/downloads/index.html
2. Click Download JDK under the download Java Standard Edition panel.
3. Choose your operating System and agree to the terms of service. **
** This will probably be Windows since your using Command Prompt.
Step 2: Setting Path for Command Prompt
1. Open the Command Prompt .
2 Type "set Path=C:\Program Files\Java\jdk1.6.0_21\bin" .*
3. Type " set HomePath= C:\Program Files\Java\ jdk1.6.0_21 *
* If you have a later jdk ( i.e. jdk 1.6.0_22) replace the portion that says jdk1.6.0_21 with it.
** If you don't know which jdk you have go to: start pane( at bottom
left corner of you screen)>click run> click browse>Then go to
C:\Program Files\Java
*** Do not type quotation marks in steps 1-3 at command prompt.
Step 3: Creating a Simple Java Program
Create Program
1. Go to Start pane>All Programs > Accessories> Notepad.exe
2 Copy and paste the following exactly:
public class helloworld
{
public static void main(String[] args)
{
System.out.println("Hello World!");
}
}
3. a.Save file as: helloworld.java
b.Make sure "save as type" under where you typed the file name as "All Files" (as opposed to the default "Text-File").
c. You want to save your java file where the Command Prompt is set to open at.*
*Such as C:\Users\MyUserName
Step 4: Compiling and Executing the Program
1.First compile file by going to Command Prompt and typing javac helloworld.java
2.This will create a class file which you can execute by typing java helloworld
3. It should print "Hello World!" to show your done.
Step 5: Learn More
1. The next thing you want to do is get a textbook that will teach you the Java language, precisely.I recommend Programing and Problem Solving with Java
by Nell B. Dale and Chip Weems .
2. You can get this from Amazon.com following this link:
http://www.amazon.com/Programming-Problem-Solving-Java-Weems/dp/0763734020/ref=sr_1_2?ie=UTF8&qid=1291909285&sr=8-2
Using Blender To Create Java3D Models
Step 1: Download The Programs
You will need Blender (http://blender.org) and Blend2Java (http://sourceforge.net/projects/blend2java/). Ok then once you have them both start off by making a simple model (or just using the standard cube) in Blender.
Step 2: Export Your Model To XML
Once you have a model you would like to use in Blender open Edit Mode
and hit the "a" key to select all points. In the bottom panel select text editor.
Open a new file in the text editor. Open the blend2java.py file that you downloaded. Run.
Ok
your object should now be in .XML wherever you saved it (if you have
and error message make shure you only have 1 material for the object).
Rename the object (it will have a weird name).
Step 3: Import The Object To Java
Shape3D fred = null;
try {
XMLDecoder e = new
XMLDecoder(new BufferedInputStream(new
FileInputStream("c:/HandShape3D.xml"))); //your file name here
fred = (Shape3D) e.readObject();
e.close();
} catch(Exception e) {
e.printStackTrace();
}
ColoringAttributes at=new ColoringAttributes();
Appearance ap = new Appearance();
Color3f col = new Color3f(1.0f, 0.0f, 1.0f);
ColoringAttributes ca = new ColoringAttributes(col, ColoringAttributes.NICEST);
ap.setColoringAttributes(ca);
fred.setAppearance(ap);
obj.addChild(fred);
insert this into any 3d code or use the whole code here
import java.io.*;
import java.beans.XMLDecoder;
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.awt.event.*;
import java.util.Enumeration;
public class MouseBehaviorApp extends Applet {
public BranchGroup createSceneGraph() {
BranchGroup objRoot = new BranchGroup();
TransformGroup objTransform = new TransformGroup();
objTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
objRoot.addChild(objTransform);
Shape3D fred = null;
try {
XMLDecoder e = new XMLDecoder(new BufferedInputStream(new FileInputStream("c:/HandShape3D.xml")));
fred = (Shape3D) e.readObject();
e.close();
} catch(Exception e) {
e.printStackTrace();
}
ColoringAttributes at=new ColoringAttributes();
Appearance ap = new Appearance();
Color3f col = new Color3f(1.0f, 0.0f, 1.0f);
ColoringAttributes ca = new ColoringAttributes(col, ColoringAttributes.NICEST);
ap.setColoringAttributes(ca);
fred.setAppearance(ap);
objTransform.addChild(fred);
MouseRotate myMouseRotate = new MouseRotate();
myMouseRotate.setTransformGroup(objTransform);
myMouseRotate.setSchedulingBounds(new BoundingSphere());
objRoot.addChild(myMouseRotate);
MouseTranslate myMouseTranslate = new MouseTranslate();
myMouseTranslate.setTransformGroup(objTransform);
myMouseTranslate.setSchedulingBounds(new BoundingSphere());
objRoot.addChild(myMouseTranslate);
MouseZoom myMouseZoom = new MouseZoom();
myMouseZoom.setTransformGroup(objTransform);
myMouseZoom.setSchedulingBounds(new BoundingSphere());
objRoot.addChild(myMouseZoom);
objRoot.compile();
return objRoot;
}
public MouseBehaviorApp() {
setLayout(new BorderLayout());
Canvas3D canvas3D = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
add("Center", canvas3D);
BranchGroup scene = createSceneGraph();
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
simpleU.getViewingPlatform().setNominalViewingTransform();
simpleU.addBranchGraph(scene);
}
public static void main(String[] args) {
Frame frame = new MainFrame(new MouseBehaviorApp(), 256, 256);
}
}
use this for a complete program
tada! you are done!
and then you say "now what"?
I have no idea! I just learned Java a month ago lol!
How To Play Java[ME] Games On A PSP!
Step 1: What Ya Will Be Usin'!
Hardware: A Psp ( custom firmware ONLY )
A PC
A PSP usb cable
Software: PSPKVM (http://www.pspkvm.com/(Click On Downloads)
Optional: Java Games (http://www.getjar.com/software/Sony-Ericsson/W850i)
Opera Mini (http://www.getjar.com/products/3334/OperaMiniWebbrowser)
Get these things before you continue...
Step 2: Install PSPKVM
Copy "PSPKVM" to /PSP/GAME or /PSP/GAME150 or /PSP/GAME5XX folder.
Depending on what firmware you have or just try each of them and see if they work.
Heres A Video: http://tinypic.com/player.php?v=2vcj9s2&s=5
Step 3: Using PSPKVM!
Put The java games in a folder of your PSP ( like: Java Games + Apps )!
Then:
Run PSPKVM on your PSP
Click Find Applications (By Pressing Start)
Then Click Install from memory stick ( by pressing start )
Then Go into whatever folder your java files are in ( press O )
Then press your java game/app ( by pressing start )
Then click J2ME standard (480*272) ( by pressing O )
Step 4: Before you try to use anything!
Exit The Application ( if you are on one ) and :1-Start PSPVKM
2-Go to network set up. Press start to launch
3- click your network name. Press start
4- wait for it to finish and click done. Press start
5-Press Select to go back to the main page
6- Start opera mini!
Note : Your network needs to be configured on your PSP before you do it.
Step 5: And Thats It!
Yay You've done it! Please comment!
Setup Java for Beginners
Step 1: Download the Software
(Only Windows) You will need to install, "Java SDK"(Java source code) and "Crimson Editor"(Color Text Editor). Links below.
Java SDK
Download the latest release of the Java SDK or JDK (means the same thing) from http://java.sun.com.
You will get an install program named something like
j2sdk-1_4_1_05-windows-i586.exe, run this program and it will install
the Java Software Developers kit. (make sure the file is called
j2sdk####, and not j2jre#### which is the Java Runtime Environment).
Crimson Editor
Download the latest release of crimson editor from http://www.crimsoneditor.com.
You will get an install program named something like cedt.exe, run this
program and it will install crimson editor on your system.
Step 2: Installing Java and Crimson Editor
Java
Now, after downloading Java SDK. Click on the exe that you have
downloaded to start the install process. You should just click next when
prompted or until it has finished installing. and remember where you
are placing the install files such as the to the default location,
"C:\SunSDK"
When you create the admin account name and password please note it down
or something will not work for you later in your java programming
experience.
Crimson Editor
After Crimson Editor download has finished.Click on the exe that you have downloaded to start the install process. You should just click next when prompted or until it has finished installing.
Step 3: Configure Crimson Editor to compile and run Java programs
Set up “compile java” menu option
Start Crimson editor (you may get an error the first time you start it, ignore the error) Click on the tools menu, then conf. user tools (or something close to that) You should see a dialog with a list of items that say “empty” select the first empty item in the list. For menu text enter “compile java” where it says command enter the path your javac.exe is found. That will be where you installed the java JDK\bin\ followed by javac.exe (example: C:\Sun\SDK\jdk\bin\javac.exe). Where it says argument click the black arrow to the right and select File Name, this should enter $(FileName) for you in the text box. Where it says initial directory click the black arrow to the right and select File Directory which should enter $(FileDir) in the text box for you. At the bottom make sure the checkbox that says “capture output” is checked. This preserves any error messages generated by the Java compiler. If you click OK and then go to the tools menu again, you should now see an option for compiling java programs.
Set up “run java” menu option
Click on the tools menu, then conf. user tools You should see a dialog with a list of items that say “empty” select the first empty item in the list. For menu text enter “run java” where it says command enter the path you found above followed by java.exe (example: C:\Sun\SDK\jdk\bin\java.exe). Where it says argument click the black arrow to the right and select File Title, this should enter $(FileTitle) for you in the text box. Where it says initial directory click the black arrow to the right and select File Directory which should enter $(FileDir) in the text box for you. At the bottom make sure the checkbox that says “capture output” is NOT checked. Also, make sure the checkbox that says “close on exit” is NOT checked. If you click OK and then go to the tools menu again, you should now see an option for running java programs.
Step 4: Testing Java
Java 101 : Hello World
1 Save the file as what your class is called but with a .java so something like this, "myfirstjavaprog.java.
2. Go to compile that we just created.
3 now go to RunNOW that we created and look at the output. and you should be done.
CODE:
class myfirstjavaprog
{
public static void main(String args[])
{
System.out.println("Hello World!");
}
}
Step 5: Learn Java
You now have setup java to create anything you want in the world. and you created your first program what next anything. programing is an Art form like any other media all you have to be is creative. let me know if you find anything wrong with my setup.
Step 6: Set up your environment. (optional)
If you are running Windows XP or higher skip these steps please. :)
Windows 98 Find the location of your java/bin directory
If you click on the Start menu, then Find, then Files or Folders, and type javac.exe where it says “Named:” This will locate any file on your computer named javac.exe, once the file is located, to the left you should see the name of the folder where your Java compiler, and Java runtime environment is contained. It should be something like c:\j2sdk1.4.1\bin
Tell DOS how to find your Java SDK
Run notepad, and then open the file “c:\autoexec.bat” if this file doesn’t already exist, create it.
Make a new line at the end of this file and add
SET CLASSPATH=%CLASSPATH%;.
Add another line and type
SET PATH=%PATH%;c:\j2sdk1.4.1\bin
But replace c:\j2sdk1.4.1\bin with the path to your java/bin directory that we found in the previous step.
Tell DOS to execute autoexec.bat whenever you start the command prompt
Start a command prompt, either by clicking on it’s icon in the Start menu, or by clicking the Start menu, then the Run… item and then typing “command” and pressing enter. If your entire screen turns black and you only see text, this means you are in full-screen mode, just press alt-enter at the same time and you will be back in windows mode. While in windows mode you should see an icon at the top of your DOS window that looks like a hand pointing at a piece of paper. Click on this icon and a dialog will appear with several places to enter information. Where it says batch file type c:\autoexec.bat Then click on the tab that says “memory” and set the initial environment to a high value like 4096.
How to make a HelloWorld application in Java Netbeans
Step 1: Downloading
If you haven't yet, you will need to download and install the latest version of Java Netbeans. If you have you can skip this step. Click to run it and save it somewhere safe, like your installs folder.
Step 2: Getting Started
Open it up and create a new project and name it HelloWorld. We will use the rest of the default settings..
Step 3: Coding
Once it opens click underneath where it says public static void main(String[] args) { click on the end of the notes, (the text in green) hit return and type: System.out.println("Hello World!"); It is very important that you type this exactly, you can even copy and paste it if you want to.
Step 4: Explanation
So basically what we just did was tell the system to print out "Hello World!" the ln after print is what keeps the text on separate lines, try taking out the ln and see what I mean. If you haven't yet, run your application and watch the magic unfold before your eyes. You can change the text "hello world!" to something else like "I love pancakes!" or "Go instructables! Really anything you want you can type there, I hope you liked this instructable and will check out my others, please leave a comment and tell me what you think! bye!
Programming Java for Absolute Beginners
Step 1: Downloading the Tools
First go here and download "java netbeans" it is the IDE we will be using. IDE stands for Integrated Development Environment, meaning it is the program where you will do all your coding. Once you've downloaded and installed it, open it up.
Step 2: Understanding the IDE
When Netbeans opens you will be greeted by the IDE. Now, I know it may seem like a lot to take in, but let me break it down.
At the top of the screen you should see many different icons, the first
is "New File" You can use this to create classes and other files, but we
will get into this more later. The second icon you will probably use
the most, this is the "New Project" icon. The next icon is the "Open
Project" icon. You can use this if you made an application on a
different computer, and want to open it on a different computer. The
next is "Save All", in Java Netbeans you can have multiple projects open
at one time, and this allows you to save them all at once. Next is
"Undo" and "Redo", they are pretty self-explanatory. The next five are
"Build" which compiles your project so you can create an executable of
it (A distributable file). Next is "Clean and Build" This cleans all the
files in your project. After that is "Run" use this to Run your
projects code. Those are the only icons you really need to know. On the
right you should see a projects tab, this is where you can access the
files of all your applications. Now, that you understand a little more about this IDE, let's get started making this application!
Step 3: Building your Application
Let's start with a very simple application, the famous Hello World
application will do. Now, what we are going to do is have the computer
say "Hello World!". To do this create a new project, Click "Next", and
call the Project "HelloWorld", leave everything else default and click
"Finish". Now, You should be greeted with this code:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package helloworld;
/**
*
* @author Your name here
*/
public class HelloWorld {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
}
}
Highlight "// TODO code application logic here" and type System.out.println("Hello World!");
Now, I'm going to explain what we just did. We just told the system to print out "Hello World!" ln means line, so it will print all the words
on the same line, try taking it out and see what happens! If you want
some more advanced techniques try typing "sout" and press the tab key.
Step 4: Wrapping Up
I really hope you enjoyed this instructable and took something away from it. Please leave some feedback below if you enjoyed, I really appreciate it! Feel free to check out my other projects if you would like to know a little bit more advanced code. If you would like to see more, just leave a comment. Have a nice day!
Java (Programming Language) For Beginners
Step 1: What Is java?
Java is just one of the hundreds of different programming languages in the world. Java language is an object-orientated programming language which was developed by Sun Microsystems. Java programmes are platform independent which means they can be run on any operating system with any type of processor as long as the Java interpreter is available on that system.
Step 2: What You Will Need
You will need the Java Software Development Kit from Sun's Java site. Follow the instructions on Sun's website to install it. Make sure that you add the java bin directory to your PATH environment variable. To find the Java Software Development Kit, go to the top right-hand corner of the screen and you will see a search bar. Type in: Java Software Development Kit. The the search results appear, find the one that says something along the lines of download.
Step 3: Writing Your First Java Programme:Part 1
You will need to write your Java programs using a text editor. When you
type the examples that follow you must make sure that you use capital
and small letters in the right places because Java is case sensitive.
The first line you must type is:
public class Hello
This creates a class called Hello. All class names must start with a
capital letter. The main part of the program must go between curly
brackets after the class declaration. The curly brackets are used to
group together everything inside them.
public class Hello
{
}
Step 4: Writing Your First Java Programme:Part 2
We must now create the main method which is the section that a program starts.
public class Hello
{
public static void main(String[] args)
{
}
}
You will see that the main method code has been moved over a few
spaces from the left. This is called indentation and is used to make a program easier to read and understand.
Here is how you print the words Hello World on the screen:
public class Hello
{
public static void main(String[] args)
{
System.out.println("Hello World");
}
}
Step 5: Writing Your First Java Programme:Part 3
Make sure that you use a capital S in System because it is the name of a class. println is a method that prints the words that you put between the brackets after it on the screen. When you work with letters like in Hello World you must always put them between quotes. The semi-colon is used to show that it is the end of your line of code. You must put semi-colons after every line like this.
Step 6: Compiling The Programme
What we have just finished typing is called the source code. You must
save the source code with the file name Hello.java before you can
compile it. The file name must always be the same as the class name.
Make sure you have a command prompt open and then enter the following:
javac Hello.java
If you did everything right then you will see no errors messages and
your program will be compiled. If you get errors then go through this
lesson again and see where your mistake is.
Step 7: Running The Programme
Once your program has been compiled you will get a file called
Hello.class. This is not like normal programs that you just type the
name to run but it is actually a file containing the Java bytecode that
is run by the Java interpreter. To run your program with the Java interpeter use the following command:
java Hello
Do not add .class on to the end of Hello. You will now see the following output on the screen:
Hello World
Congratulations! You have just made your first Java program.
Subscribe to:
Posts (Atom)