Notacon has just announced their first round of talk selections. The Cleveland, OH area hacker conference will be celebrating its sixth year April 16th-19th. When we attended this year we saw talks that ranged from circuit bending to the infamous TSA bagcam. Self-taught silicon designer [Jeri Ellsworth] presented on FPGA demoing. [Trixter] covered his demo archiving process. You can find a video archive of this year’s talks here.

We’re really looking forward to the conference. [SigFLUP] is already on the schedule to cover Sega Genesis development. Get your talk in soon though; they’re already handing out space to the knitters.

Almost every security conference we’ve attended in the last year has uploaded videos from their speaker tracks. Explore the archives below, and you’re bound to find an interesting talk.

• Defcon 15, Las Vegas, NV
• ToorCon 9, San Diego, CA
• 24C3, Berlin, Germany
• ShmooCon 2008, Washington D.C.
  
• Notacon 5, Cleveland, OH
  
• LayerOne 2008, Pasadena, CA
  

[thanks, Dan]
[photo: ario_j]

[Nate Graham] gave a presentation on what he considers ‘new media art’, the convergence of art and technology. He covered quite a few great examples of what new media art is from many categories: a mower that creates pixel art, Cory Arcangel’s famous Super Mario Clouds hack, a whale hunt whose photo capture rate depended on the participant’s heart rate, the bike based SMS printer for protests.

Non-places are areas that lack any history or monuments: a McDonald’s looks essentially the same no matter where it is. Like a hotel, supermarket, or airport it no one expects it to have any sort of historical significance to the local population. He had examples of how some of these spaces are being humanized. The project We Tell Stories uses a Google Maps hack to give a fictional story locational awareness. GRL’s lasertagging work turns single purpose items like bridges and buildings into giant canvases. There are even location based gaming like Plundr which gives purpose to spaces that are generally ignored.

The video above is Nate’s personal project ‘Invisible Narrative‘, adding a hidden story to a nondescript elevator car. An audience member asked if GRL giving away their techniques might increase the amount of annoying ‘guerilla’ ad campaigns. His response was that releasing any type of technology could result in people implementing it in a bad way, but it’s important to get free technology into the hands of people who will use it for good.

[Pete Edwards] and [Fred Owsley] openly admitted that the title was the most thinly veiled audience-bait ever constructed. Nevertheless, they poured through a great talk covering the basics of circuit bending and some of the pieces they had built over the years. Fred said that what attracts him to circuit bending is the hands on approach to something very scientific i.e. he can figure out how to construct an interesting circuit by rubbing his finger along the back of the board. As far as where to start: always a battery powered device and use the toy store as a last resort. You’re going to tear the thing apart so why pay for it? Dumpster diving, garage sales, swap meets, and flea markets are all places to look. Parts don’t need to be anything better than grab bag either. They suggested an easy first step is dropping the operating voltage of your device and seeing how it reacts. Pete and Fred had several examples of devices they’ve modified: Speak & Spells, Casio SA keyboards, Barbi karaoke machines, and the voice changing gas mask pictured above.

The Bent Festival for circuit bending is coming up soon if you’d like to see more. You can also check out these links for more information on circuit bending.

[Mark Doner] presented on how the WISP he works for near Toledo is set up. His most important point was that 802.11 is garbage when it comes to the type of installations WISPs do. 802.11 expects the clients to adjust based on the traffic from other clients, but when all your clients are directional they won’t see each other. Mark uses Motorola’s Canopy equipment, but he also mentioned Trango and Redline as other vendors. The radios operate in the 5.7GHz band which doesn’t have any power restrictions so they can use refurbished Dish Network dishes when they’re doing long shots. For customers that are nearly at the edge of service, they have 900MHz equipment as well. Heavy fog and freezing rain have proven to be the only weather that really affects the service. For back-haul between their towers they use Dragonwave equipment. Each of the radios costs ~$350 and features GPS to determine distance and maintain sync with the AP. It was interesting to see how a good WISP operates as opposed to the flakey ones we’ve had to deal with in the past.

[algormor] gave one of the more controversial talks at Notacon. After receiving a few too many inspection slips and destroyed baggage he decided to find out what was going on behind the scenes. First, he purchased a cheap bag from Walmart with a zipable liner. To record the video, he purchased a SwannGUARD MicroDVR. It’s a palm-sized device that records 128×128 15fps video. It comes with a plastic cover that he mounted to the inside of the bag. A hole was cut for the video camera right above the badge holder. Since the camera is motion triggered, he could slide the badge up, covering the hole, to deactivate the camera. He’s taken the bag on at least four trips. So… what did the footage show?

Well, lots of conveyor belts, conveyor belts, and conveyor belts. Nothing really damning. It did show the the bag spend an uncomfortable amount of time in public after being checked and before security. It also spent time traveling through certain segments multiple times, being pulled off the belt for random periods of time, and then getting put back on. Audience members were concerned that he might run afoul of federal law because he was recording audio without people knowing. Surprisingly the bag has yet to be searched.

The first talk we went to at Notacon was [Sam Harmon]’s great introduction to circuit bending, the process of modifying sound generating electronics to create new musical instruments. Reed Ghazala is considered the father of circuit bending for his pioneering work starting in 1966. Sam pointed out that a “prepared piano” could be considered the non-electric precursor to circuit bending. It involves the musician placing different types of material on the piano’s components. Sam presented many different examples of where to start with circuit bending: the Casio PT-10, PAiA Theremax, Atari Punk Console. He also mentioned a couple AVR projects: AVRSYN and todbot’s Arduino work.

The session ended with [Thom Robertson] showing off the Weird Sound Generator he built and his GHX software for playing real music with a Guitar Hero controller.

We’re headed to Cleveland at the end of the week (we’ve heard rumors it rocks) and thought it would be good to list the events we’re planning on hitting in the next five months.

• Notacon / Blockparty April 4-6 Cleveland, OH – This will be a first for us, but we’re definitely excited, especially for the demoscene madness at Blockparty (like Trixter’s MONOTONE PC speaker tracker).
• ToorCon Seattle April 18-20 Seattle, WA – In its second year, this small gathering is sure to be a blast just like last year.
• The Last HOPE July 18-20 New York, NY – Our first HOPE and the last one ever.. since the hotel is being torn down.
• Black Hat US August 2-7 Las Vegas, NV – If anything gets released this year, it’ll be here.
• DefCon August 8-10 Las Vegas, NV – The first con we ever went to. It’s not the best con, but it’s always interesting.
• SIGGRAPH August 11-15 Los Angeles, CA – SIGGRAPH is where you need to be if you want to see cutting edge graphics and interaction projects. It’s a favorite of ours and a nice break from computer security.

Anything we’re missing?

UPDATE: Maker Faire May 3-4 San Mateo, CA – Can’t believe we forgot it. Thanks [pt]!