Archive for the 'projects' Category

virtual graffiti instructable / howto

Published by matthew venn on December 18, 2009 in howto, news and projects. 0 Comments

I’ve finished the first version of the virtual graffiti system, which is now fully published (including all code) on the instructables website.

We ran a demo at the blue hut youth club on Thursday where it was very well received!
demo at blue hut youth club

virtual graffiti

Published by matthew venn on November 23, 2009 in news and projects. 0 Comments

A follow up to my latest post on using processing + linux for virtual graffiti, here is a video of it in action! The code is here: wiimote_sensor_calibration.tar.

linux ubuntu 8.10 + processing + wiimote + wrj4P5 = virtual graffiti!

Published by matthew venn on November 20, 2009 in howto, news and projects. 2 Comments

Inspired by the various wiimote graffiti offerings, but finding no source or instructions (did I not look hard enough?) I decided to do it myself. Here is the first step: getting processing working with the wiimote infrared camera to detect an infrared LED.

After installing processing, I found some instructions on the forum, but I still had some problems. Here is what I had to do:

  1. install processing
  2. install bluez libraries: sudo apt-get install bluez-utils libbluetooth-dev
  3. create ./processing/libraries/Loc and ./processing/libraries/wrj4P5
  4. download bluecove-2.1.0.jar and bluecove-gpl-2.1.0.jar and put into ./processing/libraries/wrj4P5/library/
  5. download wiiremoteJ v1.6, and put the .jar into ./processing/libraries/wrj4P5/library/
  6. download wrj4P5.jar (I used alpha-11) and put into ./processing/libraries/wrj4P5/library/
  7. download wrj4P5.zip and unzip into ./processing/libraries/wrj4P5/lll/
  8. download Loc.jar (I used beta-5) and put into ./processing/libraries/Loc/library/
  9. download Loc.zip and unzip into ./processing/libraries/Loc/lll/

Then I used code inspired from Classiclll to get the buttons and sensor bar working. This code just draws a circle where the 1st infra red source is found by the wiimote:

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import lll.wrj4P5.*;
import lll.Loc.*;
Wrj4P5 wii;

void setup() {
size(300,300,P2D);
wii=new Wrj4P5(this);
wii.connect();
}

void draw() {
background( 0 );
fill( 255 );

Loc p=wii.rimokon.irLights[0];
if (p.x>-1) {
ellipse( (1 - p.x)*width, (1.-p.y)*height, 10, 10);
}

}

Thanks to the bluecove team, the bluez team, processing crew, Classiclll and all open source massive!

portable looping station!

Published by matthew venn on August 11, 2009 in music, news and projects. 2 Comments

This is my portable looping station, put together for a busking trip to Paris. Everything packs up nice onto the trolley (speaker/power) and a rucksack (laptop and controller).

It’s pretty heavy and will be difficult up and down stairs, but the plus side is that it will last for about 4 hours and it’s nice and loud with a good bass response.

invisible dance mat!

Published by matthew venn on August 5, 2009 in music, news and projects. 2 Comments

proud to present my invisible dancemat looping station! Using 2 wiimotes, ableton live8, infra red LEDs and masking tape! Thanks Brian for the video shoot and edit…