Relive The Hackaday Belgrade Conference

May 23, 2016 by 10 Comments

The Hackaday Belgrade Conference was an amazing success. For proof, you need look no farther than the slate of talks that we have been publishing over that past several weeks. Each looks at different angles of the hardware universe; what does it mean to create hardware, where have we been, where are we going, and where does inspiration for the next great design come from?

The talks have now all been published and collected into one video playlist; it was an intense day of talks all caught in one streaming frenzy. But if you can’t make it through in one sitting, I’ve also listed the individual talks after the break so you that you may pick and choose.

There are, however, two talks that have just been published this afternoon. These are the opening remarks presented by Aleksandar Bradic and the closing remarks which I presented. When we meet people we’re often asked about what is going on behind the scenes. It’s really easy to think that nobody cares about what it takes to pull together a conference, run an amazing engineering challenge, or how we decide what we think matters when looking to the future. Alek covers the back story of how Supplyframe and Hackaday came together, as well as what led us to choose Belgrade for this conference. I discuss what I think is a core virtue of Hackaday; the free and open sharing of information and ideas. It’s a concept I believe in, and the most noble of reasons for documenting your work so that others may build upon your knowledge and skill.

Hackaday | Belgrade went beyond what we even considered possible. It joins the 2016 SuperConference (whose talk videos have also been published) as a shining example of our strong, active, and engaged community who want to spend their time enabling everyone — hackers, designers, and engineers alike — to succeed.

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The Man Who Didn’t Invent The Personal Computer

May 23, 2016 by 45 Comments

[John Blankenbaker] did not invent the personal computer. Museums, computer historians, and authors have other realities in mind when they say [John]’s invention, the KENBAK-1, was the first electronic, commercially available computer that was not a kit, and available to the general population.

In a way, it’s almost to the KENBAK’s detriment that it is labelled the first personal computer. It was, after all, a computer from before the age of the microprocessor. It is possibly the simplest machine ever sold and an architecturally unique machine that has more in common with the ENIAC than any other machine built in the last thirty years..

The story of the creation of this ancient computer has never been told until now. [John], a surprisingly spry octogenarian, told the story of his career and the development of the first personal computer at the Vintage Computer Festival East last month. This is his story of not inventing the personal computer.

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16 Megapixel Outdoor Security Camera On The Cheap

May 23, 2016 by 61 Comments

Looking for a high quality security camera? Despite digital cameras continually getting better, and less expensive, security cameras haven’t seemed to follow the same path. So? Better make your own.

[donothingloop] was looking for an outdoor, network capable camera of high resolution. He Some people might have thought about using the Raspberry Pi camera module, but let’s be honest — it’s not great. Instead, he found a pair of used Nikon Coolpix L31 cameras, and he only paid $15 for the both of them.

Now the Nikon Coolpix L31 isn’t exactly the sports edition, so to make this an outdoor security camera, it’s going to need an enclosure. An outdoor halogen work lamp enclosure fit the bill perfectly. It’s rugged, already has the glass built into it, and at $12 the cost of this project wasn’t going anywhere!

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Why I Go Through So Many Arduinos

May 23, 2016 by 117 Comments

I make things for people that can’t be bought off a shelf, and in the past several years I have gone through a lot of Arduinos. More and more, they are simply the right tool for both the job and the client. This wasn’t always the case; what changed?

My clients today still include startups and other small businesses, but more and more they’re artists, hobbyists venturing into entrepreneurship, or people who make one-offs like the interactive displays you find in museums or science centers. The type of people I work for has changed, and because of this, the right tool for their job is almost always an Arduino.

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Feed The Fun With A Semi-automatic Cheesy Poof Rifle

May 23, 2016 by 18 Comments

At Hackaday we think that hackers have the power to make the world a better place with their builds. This air-powered cheesy-poof rifle is not one of those builds, unless making the world a little more fun and slightly messier makes it a better place.

The principle of [NightHawkInLight]’s design is simple – an electric leaf blower provides the power, and a big vat o’ poofs provides the ammo. Getting the two together and providing a barrel is a matter of some simple plumbing with 1″ PVC pipe and fittings. But wait – lest you think this hack, like the ammo, is just a delicious bit of fluff, there’s something to be learned about fluid dynamics here. With a plain tee fitting, the leaf blower would only pressurize the magazine, making it difficult to chamber a round. But by adding a small restriction to the incoming air flow, the Venturi effect actually sucks ammo into the chamber and down the barrel, to the delight of hungry wildlife for yards around. Science!

There’s plenty of room for improvement to the design – something along the lines of this gas-powered, tube-fed snowball gun would be keen. As it stands, the cheesy-poof gun seems like good, unclean fun.

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I’m Sorry Dave, I Only Say 28 Phrases

May 23, 2016 by 16 Comments

A few years ago, you could buy an IRIS 9000 Bluetooth speaker. Its claim to fame was that it looked like the “eye” from the HAL 9000 computer on 2001: A Space Oddessy. There’s something seductive about the idea of having a HAL eye answer your queries to Google Now or Siri. The problem is, it still sounds like Google or Siri, not like HAL.

[Badjer1] had the same problem so he decided to build his own eye. His goal wasn’t to interface with his smartphone’s virtual assistant, though. He settled on making it just be an extension cord with USB ports. As you can see in the video below, the build has HAL-style memory units, a key, and can speak phrases from the movie (well, 28 of them, at least). The key is like the one Dave used to deactivate HAL in the movie.

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Hackaday Prize Entry: Sniffing Defibrillator Data

May 22, 2016 by 46 Comments

There’s a lot of implantable medical technology that is effectively a black box. Insulin pumps monitor blood sugar and deliver insulin, but you can’t exactly plug in a USB cable and download the data. Pacemakers and cardiac defibrillators are the same way. For these patients, data is usually transmitted to a base station, then sent over the Internet to help doctors make decisions. The patient never gets to see this data, but with a little work and a software defined radio, a team on Hackaday.io is cracking the code to listen in on these implanted medical devices.

The team behind ICeeData was assembled at a Health Tech Hackathon held in Latvia last April. One of the team members has an implanted defibrillator keeping her ticker in shape, and brought along her implant’s base station. The implant communicates via 402-405MHz radio, a region of the spectrum that is easily accessible by a cheap RTL-SDR TV Tuner dongle.

Right now the plan is to intercept the communications between the implant and the base station, decode the packets, decipher the protocol, and understand what the data means. It’s a classic reverse engineering task that would be the same for any radio protocol, only with this ones, the transmissions are coming from inside a human.

 

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