SPI installation: Lessons Learned">
In a previous blog post I wrote about my issues with a LPD6803 based installation and long cables. To illustrate my installation I paste the wiring diagram here:
After some exhausting debug sessions I found several issues.
1) Check your installation
... especially ...Read More
DSO Quad for Dummies">
I just recieved my DSO Quad from Boxtec/Seeedstudio. Because the documentation of this product is not really .. "ideal" I thought I write my steps down. 10 Years ago I used Oscilloscope for my daily job, however those were analog ...Read More
LPD6803, SPI and long distance">
I want to drive several units (boxes) filled with LPD6803 LED Modules (8-14 Led modules per box). Each unit is connected with a 70cm, unshielded and non twisted cable. I used those modules in the past without problems in my ...Read More
This is my cheat sheet I use whenever I had to debug a Java application.
jps, get PID of a running Java process:
localhost bin # jps
22763 Jps
9771 Bootstrap
2275 Startup
jmap, create memory dumps from a running process.
Example, get PermGen statistics from a ...Read More
DIY Project Box">
I was looking for a nice project box for my StripInvaders project. But either the box was ugly, too expensive or too small. Luckily I found this website: http://boxmaker.rahulbotics.com/. Their slogan is:
Give us dimensions, and we'll generate a PDF you ...Read More
This Guide shows you, how to assemble/connect the StripInvaders System. You need:
WS2801 LED Strips
An Arduino Ethernet Board and a USB/Serial Light Adapter to upload the firmware
5 Volt power supply – I use an old ATX Power supply
Optional: Grove - ...Read More
I just released a new project called StripInvaders. It's basically a PixelInvaders in one dimension. StripInvaders drives a 5m long LED strip and display some fancy animation. I use a Arduino Ethernet as driver, so no external hardware is used. ...Read More
I just got a new Arduino Ethernet board and had some troubles uploading the Firmware. After some research I finally found a solution using my BusPirate v3:
Here is the wiring between BusPirate and Arduino Ethernet
BP GND -> Pin 1 (Black)
BP ...Read More
OSC">
PixelController gets better and better and I've even managed to create a Video showing the OSC Gui on my Xoom tablet. I'm using the Control Application by Charlie Roberts in my Video:
[vimeo]32580251[/vimeo]
Oh and if you're asking yourself, where the OSC ...Read More
SSD Disk AGILITY3 on MacBook, Link Speed issues">
I own a Macbook (End 2008, MacBook5,1) and after I updated from Snow Leopard to Lion my System getting slower and slower. Thats why I wanted to replace my old HDD with a fancy new SSD disk. I bought a ...Read More
After I reinstalled my MacBook on my brand new SSD disk, I discovered that maven v3.0.3 was installed with the Java bundle. I tried to build PixelController which was working fine using maven v2.1.x. Of course, compiling failed now ...Read More
PixelController is a real time video/VJ generator and mixer software. Most of the Visuals are generated and mixed in realtime and respond to the environment. I use PixelController to control my PixelInvaders Panels.
PixelController supports well-known industry and OpenSource standards, such ...Read More