Humanizing Microsoft

September 5, 2008 by Caleb Kraft 3 Comments

Ok, you’ve probably already seen it. If not, go watch the new Microsoft commercial right now. The commercial itself is nothing amazing. Its an obvious attempt to humanize [Bill Gates] and Microsoft. [Bill] is almost endearing in his clunky delivery of the lines. We could even get to like him. Imagine him stumbling through the world as a normal guy dealing with software as the rest of us do. Would he change things? Could we get a sitcom with [Bill Gates] and [John Hodgman]? Would you watch it? We would.

Regenerative Bike Brakes

September 4, 2008 by Caleb Kraft 21 Comments

For their senior design project at Arizona State University, these guys built a regenerative braking system for their bike. As they brake, the system spools up to give them a push back up to speed. They achieved 25% efficiency on one run, which isn’t too shabby.

The site has all kinds of information. You can check out their different plans and ideas from before they decided on this specific layout as well as all their data from the test runs. Be sure to look at the piece by piece breakdown of what changes were made from the initial design.

[thanks Mario Gomes]

Interactive Globe Display

September 2, 2008 by Caleb Kraft 1 Comment

[ERASME] built this interactive globe interface for an exhibit on Inuit people and their land. The goal was to have a tactile input device to Google Earth data. The unit is composed of a half globe for location selection, a touch pad for layer selection, and a Wiimote for view changes.They had to develop their own driving application for Google Earth as none exists for Linux. The software, called KeyEvents takes inputs from all the devices and mimics keyboard and mouse control in Google Earth.

There is much more information on how they got the pieces to work together, as well as some videos in french showing the device working. One thing that stands out though is that they decided to use direct association on their Wiimote, thus stopping rogue Wiimotes from gaining control. Who would carry a Wiimote around just to hijack public displays? We would.

[thanks Leucos]

Hacking A Scale To Test Rocket Motors

August 29, 2008 by Caleb Kraft 7 Comments

[David Steeman] sent us this project. He uses a consumer scale to measure rocket engine thrust. He wanted to be able to map the thrust curve of his homemade rocket motors to determine whether they are meeting the design goals. It does this by measuring the force applied by the rocket engine via a microcontroller that records it in a text file on a computer. He then analyzes this data in an Excel spreadsheet.

The sensors were harvested from a consumer scale while the rest of the electronics were built by hand. He’s using a PIC 18F2550 microcontroller which has a built in USB interface. He has breakdowns of each piece with detailed information on how it works as well as some nice pictures. There is also a list of future improvements that he would like to do such as increasing sample speed, integrating it with the ignition, and decreasing the physical size. Files for the schematic, firmware, and excel spreadsheet are available for download at the bottom of the page, so keep scrolling down.

Solar Powered Ice Maker

August 29, 2008 by Caleb Kraft 48 Comments

solar powered ice maker
Producing ice without electricity just got a lot easier thanks to these engineering students from San Jose State University. Their system uses solar heat to facilitate evaporation of a coolant. When the sun goes down and the coolant turns back to liquid, its temperature drops drastically due to extreme pressure differences. The unit can produce 14 pounds of ice per day with zero carbon footprint. It has no moving parts and an entirely sealed system, this should mean that the only maintenance necessary would be keeping the unit clean.
[via DVICE]

GP3X To Be Released In October

August 28, 2008 by Caleb Kraft 9 Comments

You should be able to get your hands on your Wiz as soon as October. The Wiz, also known as the GP3X is the highly anticipated follow up to the GP2X, a handheld game system that runs linux. Sporting a 533 MHz ARM processor, 64 MB of RAM, a 2.8 inch OLED display, 5 hour battery life, and 16 GB of storage, its a heck of a deal. Where else can you get a portable with those specs, bundled with Flash player 7, DivX, Xvid, and MPEG playback for $179?

These units are supposed to be as hackable as the previous version. We’ve seen GPS and USB ports added as well as qtopia and Windows 95 run on them.

Correction: the 16GB of storage on the Engadget site is a typo. This unit comes with 1GB.

[via Engadget]

Wifi Robot : A Hacked WRT54GL Rover

August 28, 2008 by Caleb Kraft 16 Comments

[Jon Bennett] sent us this link to his Wifi Robot. After playing with a Linksys WRT54GL router, he was inspired to build something that would utilize this embedded Linux system. Using a thrift store R/C truck, he built a wireless robot rover. This thing can be controlled over the internet, or by laptop with a range of about 500 meters.

The router has been modified to have 2 Serial ports and a 1GB SD Card. It connects to a micro controller, which could be an Arduino or AVR Butterfly. He has supplied information for both. The truck has been mostly gutted, leaving only the chassis and electronics. He had to beef up some of the truck electronics when they fried under the load. The entire unit is powered by a pair of 7.2 Volt 3800 mAh battery packs. The most important thing on the list though, is the horn. You can honk the horn while you are driving this thing around.

The site supplies tons of information including pictures of his build, videos of it in action, speed tests, schematics, software downloads, and resource links. Great job [Jon].