Archive for the 'General' Category

Robofest 2008

Robofest is a “day-long event for youth exploring the creative world of robotics.” Kate, Jenny, Max and I were asked by Vision Ed Inc board president Marianne Petit to be judges for the DANCING WITH THE ROBOSTARS competition at Sony Wonder Technology Lab in New York City. The five competing teams of children each built dancing Lego robots, and choreographed routines for themselves to dance along with their creations. We witnessed a medieval swordplay performance, Hawaiian surfing dance, video game emulation, disco mash-up and a funk collaboration. The young inventors learned their robotics skills under the tutelage of Laura Allen, through Vision Ed Inc in New York. We loved it so much that we gave everyone a prize.

Botanicalls Twitters

Botanicalls Twitter Transistor

In case you hadn’t heard, we’ve made Botanicalls Twitter as a do-it-yourself example for people who like to–well–do it themselves. It’s the first step in making Botanicalls available to a wider audience, and the online press has taken note. In the last 48 hours, we’ve been graced by the attention of:

Make Magazine
CNet
Slashdot
Lifehacker
Gizmodo
Wired
…and even Business Week

Botanicalls Twitter would not have happened without both brilliant code and sage advice from Limor Fried. We also appreciate the support of Phil Torrone who inspired our Twitter venture and helped to make it a success. Botanicalls is a project from Kate Hartman, Kati London, Rebecca Bray and Rob Faludi.

Battery Charging Station

battery scrap closeup

We use a lot of batteries at ITP. Most of these end their life as industrial waste in our “Techo-scrap” bin, eventually to be carted off by an NYU contractor to parts unknown where their chemicals perhaps leach into places unthinkable? Maybe, not. Hopefully they’re treated with great care, but it certainly would be far more environmentally sound for us to be reusing our batteries instead of handing industrial waste off as somebody else’s problem.

battery scrap

Therefore to get things greener, I set up a brand-new battery recharging station to be shared by all of our students and faculty. We can charge commonly available Nickel-metal Hydride (NiMH) AAA,  AA, C, D and 9 Volt cells. There’s also a small Lithium-ion coin cell charger, for special 3.6 Volt rechargeable coin cells. To help answer technical questions, a manual for each charger has been laminated and attached to the recharging station.

battery charging station

More information about the devices and how to obtain batteries is available on our Physical Computing site.

Battery Tests: Arduino and XBee

Battery

People ask me all the time which battery they should use for their Arduino project, or how long an XBee will run on a specific type of battery. Rather than continue to give vague answers, I decided that it would be much more helpful to generate some real-world battery life results for Arduino projects and XBee mesh networking radios. There were a lot of surprises. The results depend of course upon which battery you choose, but everything else makes a difference too. Changing the duty cycle of a single LED doubled battery life on an Arduino project. Simply sleeping an XBee radio between transmissions generated a whopping 1470% increase in battery life. In a few cases specific types of batteries failed completely–probably the most helpful test result of all.

Use the real-world battery life results to help choose which setup is right for your project. You can also use my Battery Test program in Processing to run your own tests. Send me any well-documented results and I’ll gladly add them to the list.

AlumniBlender Grows

blender

The ITP AlumniBlender put on quite a bit of weight over the holidays as I mined databases and tracked down more of our ilk. It’s now almost tripled in size with feeds from five continents and alumni that span 17 years of the Interactive Telecommunications Program. From sneakers to scaling, and from tempers to tweetups, there’s plenty to read with new content arriving daily. Enjoy.

Living City Network

Living City

This week I was asked to help out with final mesh network creation and configuration for the Living City project, going on exhibit starting December 11th at the Van Alen Institute’s public gallery. The project is the brainchild of The Living’s two architects, David Benjamin and Soo-in Yang who are currently resident fellows at the Van Alen Institute.

“Living City is a full-scale prototype building skin designed to breathe in response to air quality. During their fellowship term, David Benjamin and Soo-in Yang have been developing one of the first architecture prototypes to link local responses in a building to a distributed network of sensors throughout the city. The prototype will be exhibited at Van Alen Institute’s public gallery and will communicate wirelessly with air quality sensors around New York City, opening and closing its gills in response to information the sensors collect.”

The technical work of sensor network communication turned out to be straightforward, although the tight deadline for the project made for a challenging assignment, much of which was accomplished in the wee hours. However for me, the most fascinating part isn’t technical or architectural, it’s the conceptual leap from simple sensor networking to creation of a data community. From the Living City site:

“Individual buildings already collect a variety of data through onsite sensors and use it to respond to changing conditions. Local input is connected to local output. But what if the buildings could share their local input with other buildings? If each building had access to remote input as well as local input, its output could become more responsive, more calibrated, more sophisticated.

In contrast to a centralized network with a pre-planned scope and function, Living City is a decentralized platform. The network begins as soon as two buildings share their data with one another. But it grows over time, and it gets better with each new participant. The more buildings that join, the better off each one becomes. Over time, buildings will build their own social networks on the Internet, inviting new acquaintances to connect, setting varying levels of access to personal information, and logging data about themselves in an online profile.

Buildings are ready to talk. They just need the platform.”

These buildings won’t just be sensored, they’ll be social. An urban network of sociable sensors could create a powerful and complex topography with fascinating potential for interactions between building systems, facility management and tenants across the urban landscape. I’m thrilled to be a part of the exploration.

ITP AlumniBlender

alumniblender screenshot

Nearly a year ago, I created the ITP BlogBlender. This site compiles all the blogs written by current members of the NYU Interactive Telecommunications Program community into a single digest. This fall has seen a flurry of server changes, software upgrades, protective adjustments and layout improvements–all in preparation for the next big rollout:

This month I soft-launched the ITP AlumniBlender. The AlumniBlender is a digest for all blogs written by anyone who has ever attended or taught at ITP. The intent is to create a community for alumni, keeping them connected and up to date on each other even though they have left the day-to-day contact of the ITP floor. To beta-test the installation, I moved all the 2007 graduating class onto the new site. Everything appears to be functioning just fine. Next week the AlumniBlender will open to all graduates and former ITP community members. Success will be the creation of a broad site that strengthens the connections in our alumni network. It’s already a pretty good read.

Spectrum Posters

Frequency Allocation Chart

Radio is tough to understand intuitively. There’s plenty of physics to describe its behavior, but it can’t be seen, smelt, felt or heard without special equipment. Radio waves travel without a medium, so the common terminology of “airwaves” is quite misleading. There’s no need for air. Defining it as “wireless” is not helpful. That doesn’t tell us what it is, just what it’s not. Radio is gerbilless too but so what?

In an effort to better describe radio phenomena to my class, I came across several great posters that are freely available as PDF files. One from Unihedron depicts the full electromagnetic spectrum. Another from the NTIA shows the full frequency allocation for radio in the United States. Finally there’s a politically motivated poster from the New America Foundation that shows the financial value and politics of radio spectrum allocation (back).

A printed version of each poster is available from that publisher for a nominal fee. I strongly recommend checking them out.

Wonder-twin Corporate Powers - Unite!

Microsoft Starbucks Cup

These coffee cups always make me laugh. Monolithic corporations love each other.

(Next week is my last here at Microsoft Research. sniff)

Botanicalls on NPR’s Morning Edition

NPR Mug

National Public Radio’s Morning Edition show did a little piece on Botanicalls today. They made a genuine effort to be charming so give Steve Inskeep’s piece a nice listen. Thanks again to Josh for lending his voice to the Fiddle Leaf Fig.