Browsing category “tutorials”
How to do stuff. Or at least, how I did it.
April 17th, 2008
I just spent a while looking for a way to install the current (2.5) release of the WordPress blog on the web host web10.se. I failed. However, I did manage to install Wordpress 2.3. If you want to know how…
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Posted in tutorials | Tagged with wordpress
January 28th, 2008
This is a problem I just had (in Windows XP): My graphics card was set to force a TV display, even though I did not in fact have anything hooked up to my TV-out connection. Unfortunately my system chose to…
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Posted in tutorials | Tagged with catch-22, drag, how-to, off-screen, windows
January 21st, 2008
OK, this is just plain embarrassing.
I just spent several minutes trying to figure out how to switch on an iMac. Seeing there is no power switch on it, I figured this was some sort of Apple design decision - probably…
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Posted in tutorials | Tagged with mac, power, silly
December 14th, 2007
The problem
You’re this guy, or gal, somewhere where you have a crippled internet access. Probably for security reasons, somebody closed most of the outgoing ports in a firewall. You can surf, and use SSH.
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Posted in tutorials | Tagged with smtp, ssh, tunnel
December 14th, 2007
These are some notes I made while trying to get a Java OpenAL (JOAL) application start from a web page. The tutorial applies to Java 1.4.2, but it probably works similarly in newer versions.
There are some things you need to…
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Posted in tutorials | Tagged with dll, Java, joal, web start
December 12th, 2007
Processing is a free, open-source programming environment based on Java and the weapon of choice for most people doing artistic productions that require a bit of coding. Get it at processing.org
Mobile Processing is a cousin of Processing, but aimed at mobile phones…
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Posted in tutorials | Tagged with how-to, mobile, processing.org
December 12th, 2007
This refers to doing it on Windows XP - Vista is probably very similar.
For starters…
Java is a programming language, but it’s also something called a virtual machine. The way it works is you write code - source code - in text…
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Posted in tutorials | Tagged with Java
December 12th, 2007
The problem
I have a Java MIDP application, made with WTK, maybe using EclipseME or mobile processing. I want to run it on my Palm.
After digging into ways of doing this, I wound up running an application called jartoprc but it…
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Posted in tutorials | Tagged with Java, palm
November 22nd, 2007
When PD starts, audio is off, and you have to click the “compute audio” tick box. But what do you do when you want to start it automatically, like from a batch file?
The answer is, cryptically enough, “; pd dsp…
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Posted in tutorials | Tagged with puredata trick
November 14th, 2007

This is a little thing I made for artist Petra Vargova. It’s a home-made “shield” for the Arduino, i.e. this circuit fits on top of an Arduino board. (Indeed, it is sitting on top of an Arduino in the photo).
It’s…
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Posted in tutorials
November 8th, 2007
So, there I was, coding a little thing in Processing. I was just testing out this thing where the user could drag control points around in a window, and I just needed to make sure she didn’t drag them out…
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Posted in tutorials | Tagged with Java, processing.org, tutorial, unit testing
November 2nd, 2007

A bare piezo element makes a really cheap force sensor .
This example uses two piezo elements, back to back, with an o-ring in between.
Solder wires to the piezo element, one to the center piece and one to the rim (or…
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Posted in tutorials | Tagged with arduino, how-to, physical computing, piezo, sensor, tutorial