Turn Your Playstation 3 Into Linux-based Lab Equipment

September 11, 2008 by Adam Harris 10 Comments

In a two-part series called “PS3 Fab-to-lab” on IBM’s awesome developerWorks website, [Lewin] explains how to use the Cell Broadband Engine in a PS3 to create an audio-bandwidth spectrum analyzer and function generator. The set up consists of Yellow Dog Linux, an NTSC television, and an external USB sound card to provide the inputs of the spectrum analyzer and the outputs of the function generator. The sound card driver is written to simply capture or send the info in question (audio range only) and the NTSC television as the graphical interface. This hack involves a lot of coding with hardly any example code provided. The article is more of a guide than anything. If anyone gets this working, let us know!

[via Digg]

[photo: Malcom Tredinnick]

PC Stands For “Patriotic Computer”

September 11, 2008 by Kimberly Lau 11 Comments

[vimeo http://vimeo.com/1709336%5D

On the seventh anniversary of the events of September 11, 2001, it’s important to reflect on patriotism, nationalism, and responsibility to your country and motherland. This USB memorial lets us think about our contributions to our great nation. Or it’s just a tribute to misguided nationalism and capitalism via insipid flag waving. Instructions are available at Instructables.

[via F.A.T.]

3D Mineral Printer

September 7, 2008 by Eliot 1 Comment

The last few days many people have been talking about the USC’s contour printer. It’s a device that prints concrete outlines with the hopes of eventually printing entire houses. Caterpillar has decided to back the initiative.

It reminded us of a project we came across at Maker Faire. [Leif Ames], [Matthew Bowman], [Marides Athanasiadis], and [Terrell Edwards] built a 3D Mineral Printer as their senior engineering design project at UC Santa Cruz. The printer works by first laying down a layer of dry concrete powder. It then selectively wets the powder where it wants a solid form. The reaction doesn’t require air to dry, so the next layer can be applied immediately. The printer only creates contours and the team imagines this being used to create temporary casting molds. The build envelop is nearly a cubic meter. When we talked to them, they were experimenting with many different types of material mixes. A video of the first test is after the break. Continue reading “3D Mineral Printer” →

Toaster Computer

September 7, 2008 by Nick Caiello 28 Comments

[Gordon Johnson] recently completed part 1 of his toaster computer project. He used a standard four slot toaster as the enclosure and cut holes for access to the ports and a wireless antenna. While the specifications of the components used are not mentioned, the build is well documented on his site, complete with lots of pictures and a video. While he used a traditional fan based cooling method for part 1 of the build, he plans on using a special cooling method for part 2 that uses aluminum and mineral oil to create a thermoelectric cooling effect.

High Altitude Photographic Balloon

September 6, 2008 by Jason Rollette 6 Comments

[Earl Foster] recently completed his 4th high altitude photographic balloon (HAPB-4) launch. This launch reached a peak altitude of 106,384 feet, and lasted about 3 hours. The final weight of the capsule was 5lb 3-3/8 oz, with all the electronics, GPS, digital camera, and HD video camera. His balloons operate under the exempt rules of FAA Part 101 subpart a governing unmanned balloon flight. This program has been setup to encouraging interest in science, mathematics, and engineering through unmanned ballooning. HAPB-4 uses a Parallax SPIN Stamp microcontroller, this multicore chip offers eight 32-bit processors (cogs) sharing 32kB RAM and ROM. Having eight separate COG’s allows him to log GPS data, control the camera, log and monitor sensors, and control LCD functions simultaneously with minimal hardware. During this flight he did have some equipment failures, but he was still able to capture some nice pictures.

LCD PIC Graphics Demo

September 5, 2008 by Eliot 2 Comments

[conville] has been pushing standard HD44780 character displays to the limit. Embedded above is an example spectrum analyzer and text scrolling demo. Below you’ll find a scope demo. Both of these are created using a PIC 16F688 that dynamically rewrites a custom character set to create the animation. You can find the source code on mikrocontroller.net. Continue reading “LCD PIC Graphics Demo” →

The Phone Phreaking Files

September 5, 2008 by Kimberly Lau No comments

[Jason Scott] curated a nice collection of links related to [Phil Lapsley]’s work on phone phreaking. [Lapsley]’s book, The History of Phone Phreaking, will be released in 2009. Meanwhile phone phreak enthusiasts can peruse his site and bone up on some interesting material, including documents that revealed the inner workings of the telephone switchboard(PDF), and the Youth International Party Line (YIPL)/Technological American Party (TAP) FBI files(PDF), which is really intriguing for the various doodles and conversations that were documented. If you have some spare time, we definitely recommend sifting through it.

[via Waxy]