Kelly Heaton’s Artwork Blurs The Line Between Traditional And Electronic

December 16, 2019 by Lewin Day 7 Comments

Digital electronics are all well and good, but it’s hard to ignore the organic, living qualities of the analog realm. It’s these circuits that Kelly Heaton spends her time with, building artistic creations that meld the fine arts with classic analog hardware to speak to the relationship between electronics and nature. During her talk at the 2019 Hackaday Superconference, Kelly shared the story of her journey toward what she calls Electronic Naturalism, and what the future might bring.

The Pool of Reflection Loop was one of Kelly’s early electronic installation pieces.

Kelly got her start like many in the maker scene. Hers was a journey that began by taking things apart, with the original Furby being a particular inspiration. After understanding the makeup of the device, she began to experiment, leading to the creation of the Reflection Loop sculpture in 2001, with the engineering assistance of Steven Grey. Featuring 400 reprogrammed Furbys, the device was just the beginning of Kelly’s artistic experimentation. With an interest in electronics that mimicked life, Kelly then moved on to the Tickle Me Elmo. Live Pelt (2003) put 64 of the shaking Muppets into a wearable coat, that no doubt became unnerving to wear for extended periods.

Analog electronics parallel living organisms while programmable logic merely simulates life.

—Forrest Mims

Wanting to create art with a strong relationship to organic processes, Kelly focused on working with discrete components and analog circuitry. Basic building blocks such as the astable multivibrator became key tools that were used in different combinations to produce the desired effects. Through chaining several oscillators together, along with analog sequencers, circuits could be created that mimicked the sound of crickets in a backyard, or a Carolina wren singing in a tree.

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Interview: FieldKit Team The Morning After Winning The 2019 Hackaday Prize

December 13, 2019 by Mike Szczys 1 Comment

We caught up with Shah Selbe and Jacob Lewallen the morning after their project, FieldKit, won the Hackaday Prize. FieldKit is an open-source field-based research data collection platform. Which is basically a lot of fancy words for saying it’s a system for collecting sensor data in the field without being snagged by the myriad of problems associated with putting electronics in remote locations. It’s a core project of Conservify, a non-profit organization that seeks to empower conservation research.

As grand prize winner the FieldKit project was awarded a $125,000 cash prize, which Shah and Jacob say is transformative for a non-profit pursuing technology research and development. It seems the grant process has not evolved to embrace developing electronics, while opportunities for research projects have begun to involve recording large data sets in order to test a hypothesis. This is where FieldKit truly shines. Their vision is to provide a low-cost and extensible system that other researchers can use to collect data while making their own grant dollar go much further.

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Angela Sheehan Is Developing Wearable Tech With Whimsy

December 11, 2019 by Tom Nardi 4 Comments

As a concept, wearable technology excites many of us, but in practice, it’s been hard to nail down. Up to this point, the most high-tech thing the average person might reasonably wear has been a wrist watch. Devices like Google Glass tried to push the state-of-the-art, but it arguably raised more questions than it answered. It demonstrated in a very public way that developing wearable technology that’s simultaneously visually appealing, useful, and robust enough to handle daily life is exceptionally difficult. If Google couldn’t pull it off, what hope do we lowly hackers have?

But maybe we’ve been going about things the wrong way. Compelling as the end result may seem, the move from wrist watches to head-mounted computers is simply too large of a technical and psychological leap to make. To help develop the skills and techniques necessary to build practical wearable electronics, it might help to take a slightly more fanciful approach.

It seems to be working pretty well for Angela Sheehan, at least. In her talk “Building Whimsical Wearables: Leveling Up Through Playful Prototyping” at the 2019 Hackaday Superconference, she went over some of the things she’s learned while developing her Color Stealing Fairy costume. The product of several years of iterative design, the costume is able to mimic colors seen in the environment through the use of a wireless sensor wand, and features a number of design elements that are critical to any successful wearable project.

Even if a custom RGB Fairy costume isn’t on your short list of projects, there’s information in this talk that will surely be of interest to anyone who’s even contemplated a wearable project. From technical aspects like battery placement to logistical considerations such as making adjustments for multiple wearers, Angela’s make-believe creation has become a testbed for real-world considerations.

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Hackaday Superconference: An Analog Engineer Dives Into RF

December 9, 2019 by Jenny List 6 Comments

Those of us who work with electronics will usually come to the art through a particular avenue that we master while imbibing what we need from those around it. For example, an interest in audio circuitry may branch into DSP and microcontrollers as projects become more complex. Some realms though retain an aura of impossibility, a reputation as a Dark Art, and chief among them for many people is radio frequency (RF). Radio circuitry is often surprisingly simple, yet that simplicity conceals a wealth of complexity because the medium does not behave in the orderly manner of a relatively static analogue voltage or a set of low-frequency logic levels.

Chris Gammell is a familiar face to many Hackaday readers for his mastery of much electronic trickery, so it comes as something of a surprise to find that RF has been one of the gaps in his knowledge. In his talk at the Hackaday Superconference he took us through his journey into RF work, and the result is a must-watch for anyone with a curiosity about radio circuitry who didn’t know where to start.

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David Williams Is “FPGA-Curious”

December 6, 2019 by Elliot Williams 17 Comments

If you hadn’t noticed, we had a bit of an FPGA theme running at this year’s Superconference. Why? Because the open-source FPGA toolchain is ripening, and because many of the problems that hackers (and academics) are tackling these days have become complex enough to warrant using them. A case in point: David Williams is a university professor who just wanted to build a quadruped robotics project. Each leg has a complex set of motors, motor drivers, sensors, and other feedback mechanisms. Centralizing all of this data put real strains on the robot’s network, and with so many devices the microcontrollers were running out of GPIOs. This lead him to become, in his words, “FPGA-curious”.

If you’re looking for a gentle introduction to the state of the art in open-source FPGAs, this is your talk. David covers everything, from a bird’s eye view of hardware description languages, through the entire Yosys-based open-source toolchain, and even through to embedding soft-CPUs into the FPGA fabric. And that’s just the first 18 minutes. (Slides for your enjoyment, and you can watch the talk embedded below the break.)
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Sara Adkins Is Jamming Out With Machines

December 4, 2019 by Kristina Panos 1 Comment

Asking machines to make music by themselves is kind of a strange notion. They’re machines, after all. They don’t feel happy or hurt, and as far as we know, they don’t long for the affections of other machines. Humans like to think of music as being a strictly human thing, a passionate undertaking so nuanced and emotion-based that a machine could never begin to understand the feeling that goes into the process of making music, or even the simple enjoyment of it.

The idea of humans and machines having a jam session together is even stranger. But oddly enough, the principles of the jam session may be exactly what machines need to begin to understand musical expression. As Sara Adkins explains in her enlightening 2019 Hackaday Superconference talk, Creating with the Machine, humans and machines have a lot to learn from each other.

To a human musician, a machine’s speed and accuracy are enviable. So is its ability to make instant transitions between notes and chords. Humans are slow to learn these transitions and have to practice going back and forth repeatedly to build muscle memory. If the machine were capable, it would likely envy the human in terms of passionate performance and musical expression.

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John McMaster Explains Crypto Ignition Phone Keys And How To Reproduce Them

December 2, 2019 by Lewin Day 17 Comments

When you’re a nation state, secure communications are key to protecting your sovereignty and keeping your best laid plans under wraps. For the USA, this requirement led to the development of a series of secure telephony networks over the years. John McMaster found himself interested in investigating the workings of the STU-III secure telephone, and set out to replicate the secure keys used with this system.

An encryption key in a very physical, real sense, the Crypto Igntion Key was used with the STU-III to secure phone calls across many US government operations. The key contains a 64KB EEPROM that holds the cryptographic data.

[John] had a particular affinity for the STU-III for its method of encrypting phone calls. A physical device known as a Crypto Ignition Key had to be inserted into the telephone, and turned with a satisfying clunk to enable encryption. This physical key contains digital encryption keys that, in combination with those in the telephone, are used to encrypt the call. The tactile interface gives very clear feedback to the user about securing the communication channel. Wishing to learn more, John began to research the system further and attempted to source some hardware to tinker with.

As John explains in his Hackaday Superconference talk embeded below, he was able to source a civilian-model STU-III handset but the keys proved difficult to find. As carriers of encryption keys, it’s likely that most were destroyed as per security protocol when reaching their expiry date. However, after laying his hands on a broken key, he was able to create a CAD model and produce a mechanically compatible prototype that would fit in the slot and turn correctly.

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