RGB Stroboscopic Guitar Tuning

November 3, 2010 by 15 Comments

This is [Michael Ossmann’s] RGB LED stroboscopic guitar tuner. If his name is familiar that’s because we mentioned he’d be giving a talk with [Travis Goodspeed] at ToorCon. But he went to DefCon as well and spent the weekend in his hotel room trying to win the badge hacking contest.

Despite adversity he did get his tuner working. It’s built into a toy guitar that he takes on road trips with him. By adding a row of RGB LEDs between two of the frets he can use the vibration frequency of an in-tune string to flash the three different colors. If the string is not in tune the three colors will dance around but matching it with the LED frequency produces a stable color. He then uses that big yellow button to advance to the next string. See his demonstration after the break.

This is basically a built-in plectrum tuner that uses one LED package instead of two.

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Hacking: A Disobedient Act That Drives Change

October 28, 2010 by 16 Comments

[Adam Dachis] published an essay a couple of days ago called Why We Hack. In it he discusses the outlook that hacking, on all of its various levels, is a simple form of disobedience. We have to agree with him. Manufacturers would like you to think that voiding the warranty is as good as smashing the product to bits. But we all know that if you can’t crack it open you don’t really own it. [Adam] says we can sit around and complain about it, or we can do better. So crack it open, dump the firmware, and make it do your bidding.

If you haven’t already seen it, you should also go back and watch [Corey Doctorow’s] keynote address from Toorcon 8. He discusses freedom of information and hits especially hard on End User License Agreements (EULA) and the ills they cause. We’ve never seen someone hit the target quite as well as he does in this fantastic speech.

Pulling Data From The IM-ME Spectrum Analyzer

October 9, 2010 by 4 Comments

A small, cheap spectrum analyzer with an LCD can be a fun thing to play with. But to be truly usefully you need access to raw data, and lots of it. [Travis Goodspeed] set out to make that possible by pulling data with a GoodFET and a Python script.

He started with [Michael Ossmann’s] IM-ME spectrum analyzer, which uses a CC1110 chip. The two of them are giving a lecture at Toorcon 12 (called Real Men Carry Pink Pagers) and this will be used as a demonstration device. After studying the datasheet he found the starting RAM address and did some further work to deciphered how the data is stored in it. From there it was a matter of working out the timing for grabbing the data, and coding a method for storing it. Now he’s looking for brave souls to help him trailblaze with this newly-discovered tool. It seems that if you know what you are doing, and have abundant patience, you can use this for a bit of old-fashioned reverse engineering.

Thermoelectric Solar Power

October 5, 2009 by 41 Comments

Thermo_Electric_Solar_Power

[Colin] has put together an instructable for a solar power generator that uses the thermoelectric effect instead of the photovoltaic (PV) effect. We have seen Peltier devices used in cooling cans, solder paste, backs, and hacked hard drives. This is the first hack we have seen where a Peltier device is used to generate electricity from heat, essentially running the device backwards. The thermoelectric effect is the same principle that is used to generate electricity in radioisotope thermoelectric generators used in deep space probes such as Cassini. What applications can you come up with to use the thermoelectric effect as a power source?

Farewell, Hack A Day

September 4, 2009 by 89 Comments

eliotvissbw

Now, on the eve of Hack a Day’s fifth anniversary, seems like an appropriate time to announce my resignation. Site founder [Phillip Torrone] published the first post, a red box, on September 5th, 2004. On May 7th, 2005 I took over editorial duties at Hack a Day by publishing one of my favorite projects: [Jonathan Westhues]’ proximity card spoofer. Since then, I’ve run Hack a Day with a number of great contributors over the last four years: [Fabienne Serriere], [Will O’Brien], [Ian Lesnet], and current senior editor [Caleb Kraft] just to name a few. I’ve enjoyed watching the site grow, powered by the constant stream of tips from readers. Whether we were turning hard drives into molten goo or putting our hardware designs into production, it’s been a lot of fun. With all the new talent we’ve brought on recently, I have confidence that Hack a Day will continue to be a great resource in the future.

You’ll be able to find me online running my personal blog RobotSkirts.com and on Twitter as @sweetums. In real life, I’ll still be attending hacker conferences, like the upcoming ToorCon in San Diego, and local Los Angeles tech events like Mindshare and the weekly Hacker Drinkup.

In closing, I’d like to thank you, the readers, for all the support you’ve given us over the years. If it weren’t for all the tips, personal projects, and ideas you’ve sent us, we’d never have made it this far. Thank you.

[photo: Viss]

ToorCamp 2009 To Be Held At Missile Silo

February 3, 2009 by 12 Comments

toorcamp

After running a successful hacker convention for ten solid years, the people who brought you ToorCon are planning a new event to shake up the US hacker scene. ToorCamp will be held July 2nd-5th, 2009 at a former missile silo in central Washington state. Hackers will camp on-site for two days of talks followed by two days of workshops. Art and music events are planned for every night. Camps like this are already help biannually in Europe: What the Hack in 2005, Chaos Communication Camp 2007, and Hacking at Random 2009, coming this fall. The complex is one of three Titan 1 missile complexes in the Moses Lake area. The sites were in operation less than three years between 1962 and 1965. The former missile command center has been converted to a secure data center run by Titan I, LLC. ToorCamp promises to be a very unique experience and we’re looking forward to attend this and future years.

Intel 4004 Internals

January 9, 2009 by 15 Comments

The silicon wizards at Flylogic have certainly posted an interesting chip this time around. The Intel 4004 was the first widely used microprocessor. The logic gates are much larger than you’d find in modern chips. The unique feature is that each gate is designed to make the most efficient use of the silicon instead of the standardized shapes you find now. They’ve uploaded a full image of the chip.

For an introduction to silicon hacking, we reccomend [bunnie]’s talk from Toorcon and [Karsten]’s talk from 24C3. You can find many more posts on the topic in our silicon tag.