Month: March 2011

Lol Shield Theatre Brings Online Video To The Pixelated Screen

March 11, 2011 by 4 Comments

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[FallDeaf] bought a Lol Shield, and after making all sorts of blinky displays, he thought to himself, “What in the world can I use this thing for?”

In a really slick fusion of hardware, software, and the power of the Internet, he has created what he calls, “Lol Shield Theatre”.

The idea goes something like this:

You visit his site, and create your own “movie” by drawing on his virtual Lol Shield. Add as many frames as you would like, set the frame rate, then submit your creation. From there, you can download an Arduino sketch that contains your entire animation so you can play it on your own Lol Shield. You can also visit his Lol Shield gallery, where you have the ability to watch, download, and vote on movie submissions from other visitors.

He has also provided the source code to drive your Lol Shield, as well as created an API through which you can stream the various animation feeds from his Lol Shield gallery directly to your Arduino via a USB cable.

Be sure to check out the video demo we have embedded below, and show off your pixel cinematography skills over in the theatre.

Continue reading “Lol Shield Theatre Brings Online Video To The Pixelated Screen” →

The Traveling Terabyte Project – Helping Those Who Protect Us

March 11, 2011 by 75 Comments

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Though some people differ on what exactly a “hacker” is, there is one thing that can be said for certain – this global community of tinkerers, experimenters, and hobbyists we belong to is one of big hearts. Through our various projects and tutorials, we lead by example – sharing knowledge and offering help whenever we can. You would be hard pressed to find something that could exemplify this more than the Traveling Terabyte Project.

Started in the summer of 2006 by [Deviant Ollam], the goal of the project was to provide informational content from DefCon 14 to those friends and acquaintances who were deployed overseas in the service of the U.S. Armed Forces and their associates. This was originally done by outfitting durable cases with large portable hard drives stuffed with movies, music, and publications in order help those stationed far from their friends and family enjoy their down time a little bit more.

The project has grown by leaps and bounds while the storage mediums have shrunk accordingly. The project has recently entered a new phase, where they are migrating over to flash drives instead of hard drives, which should help spread the distribution of media immensely.

The Traveling Terabyte Project did not approach us soliciting money or publicity in any way, so by no means should you feel obligated to support the project. Regardless of our individual political leanings and views on war, we believe that helping out people who are subject to extreme amounts of stress while stationed far away from their home, friends, and family is a noble cause.

[Thanks, RenderMan]

Microsoft Points Algorithm Cracked… They’re Out $1M

March 11, 2011 by 44 Comments

Looks like someone figured out the algorithm that Microsoft uses to generate unique codes for their alternative currency: Microsoft Points. We were always a bit baffled by the need to do this sort of thing (Disney dollars, tokens at arcades, etc.) but figured it’s just a grift to get you to spend more dough. Looks like this time it may have come back to bite them in the ass with early loss projections somewhere in the $1-$1.2 million range.

But as most of you know, it’s not just an algorithm that can cause this kind of havoc. Whomever figured out how to crunch the numbers apparently packaged the method into a nice GUI and distributed it over the Internet. Check out the video after the break to see that not only will it give you a code, but you can verify that it works at the click of a button. Microsoft is taking steps to invalidate all of the ill-gotten redemption codes, but we wonder how effective they can be at it. Surely they already had contingency plans for this and we wonder if the company didn’t also carry insurance against this kind of loss.

Try as we might, we couldn’t turn up a press release on the subject. If you know of any, please be kind and leave a link in the comments.

Continue reading “Microsoft Points Algorithm Cracked… They’re Out $1M” →

Bitbang IR Remote

March 11, 2011 by 4 Comments

[Albert] has made a few PC IR transmitters and receivers using the traditional connection of RS232 serial, and that is fine, but as we are all aware, not every computer has serial ports standard. Searching though normal USB <> RS232 dongles didn’t meet his requirements. Deciding on making it himself, he whipped up this FTDI bit-bang IR receiver / transmitter.

While FTDI makes a range of chips most (if not all) support a bit-bang mode where you can manually control the IC’s pins. The FTDI chip handles the timing, and when paired up with libFTDI makes it pretty painless to control. The software is a work in progress, but [Albert] already has a driver that connects to LIRC, which lets you control a wide array of remote devices and a test program for carrier generation.

Schematics, source, and a few pages of good information are available on his site.

Phillip Torrone Makes Case For Next-gen Public Libraries

March 11, 2011 by 48 Comments

[Phillip Torrone] has started a discussion about a possible upgrade to the public library system in the US and wants to know what you think. His name should be familiar (Hackaday founder, Open Source hardware advocate, and Tron costume model) and he’s definitely got his finger on the pulse of today’s electronics enthusiasts. He poses the question, could we upgrade libraries to become public techshops?

As a frequenter user of my own library system here in Madison, Wisconsin I like to think that they’re not going anywhere anytime soon. I find it nice to be able to borrow books, as it seems wasteful to buy a book I will only read once. Sure, I do buy and sell books at the used book store, but that doesn’t diminish how I value the library system and often suggest in posts that our readers should go check out books they’re interested in.

But I must agree with [Mr. Torrone] that, a least to some extent, reserving large buildings to house collections of books may be an outdated concept. It’s not just the books that make the library. These buildings provide computer time and Internet access to the community. I’ve occasionally written posts from public libraries instead of paying the ‘coffee tax’ to get on WiFi in a coffee shop. Libraries also serve as community meeting spaces, and polling places. And what [Phillip] is talking about aims to offset some of the stacks in order to augment the functionality of the institution.

What if it were a repository of knowledge in the written form as well as a place to use tools and learn new skill? It’s an intriguing question and I’m glad he asked it.

Zigbee-powered Wireless Scale

March 11, 2011 by 5 Comments

[joe] wanted to make it easy to record his weight every day, and added a few bits to decode the weight and send it to his computer. The end result is a ZigBee-powered wireless scale. Additionally, his scale can track more than one person’s data simply by knowing whose previous weight the new measurement is closest to. Now [joe] and his family can spend more time working out, and less time messing with spreadsheets and data entry.

[joe]’s build is not only elegant, but well-documented, too. He walks through the reasons he chose this specific floor scale, reverse engineering it to decode the weight, then provides links to his schematics, source code, and pretty much everything else you would need to play along at home.

Build Your Own Vertical Axis Wind Turbine

March 11, 2011 by 26 Comments

You can build a copy of this vertical wind turbine in a weekend and it won’t cost you all that much. Applied Sciences developed the hardware and they’re sharing all for the build details. You will be taken through every part of the build starting with the fin assembly which is made from stove-pipe material. This is a perfect raw material because it is already curved and suited for aerodynamic use in much the same way that PVC pipe is for making fins and we would expect it to be a bit lighter in weight. You will also need to turn your own coils when assembling the stator. This particular build process uses nine coils embedded in fiberglass. They remain stationary while two different discs, each containing a dozen rare earth magnets, rotate in close proximity to induce a current. It outputs three-phase AC current which can be turned to DC using a bridge rectifier and then further regulated for storage in batteries.

[Thanks Miguel]