Hackaday Prize Finalist: A Network Of Satellite Ground Stations

November 7, 2014 by 29 Comments

There are astonishing things you can do with a network of sensors spread across the globe, all connected to the Internet. Thousands of people have already installed hardware to detect lightning and flightaware gives out subscriptions to their premium service to anyone who will listen in to airplane transponders and send data back to their servers. The folks behind SatNOGS, one of the five finalists for The Hackaday Prize are using this same crowdsourced data collection for something that is literally out of this world: listening to the ever-increasing number of amateur satellites orbiting the planet.

There are dozens of cubesats and other amateur satellites flying every year, and they have become an extremely popular way of experimenting in a space environment, giving some budding engineers an awesome project in school, and testing out some technologies that are just too weird for national space agencies. The problem with sending one of these birds up is getting the data back down; a satellite will pass above the horizon of a single location only a few times a day, and even then for only minutes at a time. The SatNOGS team hopes to change that by planting receivers all around the globe, connecting them to the Internet, and hopefully providing real-time telemetry from dozens of orbiting satellites.

[Pierros] from the SatNOGS team was kind enough to sit down and answer a few questions for us about his entry to The Hackaday Prize. That’s below, right after their finalist video. Some of the SatNOGS team will also be at our Munich event where we announce the winner of the Prize.

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Hackaday Links: November 2, 2014

November 2, 2014 by 16 Comments

Russians blowing up capacitors! As we all know, electronics only work because of blue smoke. [kreosan] is releasing this blue smoke from a few hundred caps. Fun times, even if they are a large number of inert tube shields in their collection of caps.

[mayhugh1] over on the home model engine machinist forum has built an 18 cylinder radial engine. It’s based on the Hodgson 9-cylinder radial engine that has been around for a while. The crank case is machined from a 5″ diameter rod of aluminum. There’s a Picassa album of the engine being constructed as well.

[Richard] wanted a Minecraft server, but not just any Minecraft server; this one demanded a custom case. A grass block was the inspiration, acrylic the medium, and a quad-core Mini-ITX the guts of the project.

Halloween was last Friday, and as always the tip line filled up with costume builds. [Leif] built a Ghostbusters costume complete with Muon trap, [Jeff] printed out some steampunk post-apocolyptic goggles, and [Green Gentleman] made a death-a-corn, although we’re struggling to figure out why the last one isn’t called an acorn-‘o-lantern.

[Matthias Wandel], a.k.a. the woodgears.ca dude,  is well-known in certain circles for being a wizard of wood. One of the first projects that put him on the map was a pantorouter – a router to cut mortises and tenons. He’s going back to his roots and building a bigger version. This version uses models of routers that are available outside North America, and in the latest video [Matthias] has it dialed in very well.

The Open Source Remote Control was an entry for The Hackaday Prize that didn’t make the final cut. It’s now an indiegogo project, and has some really cool tech we can’t wait to see in mainstream RC transmitters.

Hackaday 10th Anniversary: Demoscenes And Blink(1)

October 8, 2014 by 18 Comments

There were two LA hackerspaces represented at our 10th anniversary party, and members from both of them were able to give a talk on the projects coming out of their labs. [Arko] from null space labs showed up with a few of his creations including CUBEX, his high altitude balloon payload and a demoscene board he’s been working on. [Tod] from Crashspace showed up with the rest of the Crash crew and helped out with the morning build-offs and labs.

A Demoscene Board

Demoscenes, for one reason or another, aren’t extremely popular in the US. In Europe, you can find teams working on programatically generated music videos year-round, coded for Commodore 64s, Amigas, even stranger computers, and x86 assembly. There’s an art to the whole thing, but for those of us on this side of the pond, there aren’t many venues to demonstrate impeccable graphics programming skill.

[Arko] wants to change this. He’s designed a demoscene board around a PIC micro with hardware graphics acceleration, USB OTG, VGA out at 640×480, and an audio out port. It’s meant to be a platform to create demos on, and already [Arko] has ported the famous Craft demo from [lft] to his platform. Edit: the Craft demo was playing on the older ATmega88 version of the board. The PIC board is a little more capable.

Being that there are so few Demo parties in the US, only building a board to play demos would be just a bit shortsighted. [Arko]’s main reason for giving this talk was to tell everyone about the LayerOne Demoparty next year just a few miles from the Hackaday Hackaspace. It coincides with the LayerOne conference, and the board itself will soon be available for sale in the Hackaday store.

Blink(1) and How To Kickstarter

When it comes to electronics and tech Kickstarters, Blink(1) defines what it means to have a minimum viable product. It’s a USB plug, a small microcontroller, and an RGB LED. That’s it. [Tod] wanted to take this simple project and learn how to turn it into a product. [Tod] emphasised the ‘learn’ part of his plan; the alternate title for this talk was, “How to Fail Multiple Times and Still Ship 20,000 Units.”

The Blink(1) started as a standard My First Arduino Sketch, blinking three LEDs, quickly moving over to a USB LED device. This rather large USB dongle sat there for a few years until he decided to turn this into a product. It turned out building a product is a lot more involved than building a kit, with considerations to the enclosure, the packaging, and the inevitable CNC mold fails. Assembly – and the success of his first Kickstarter – was also an issue. [Tod]’s friends ended up assembling most of the kits.

Despite these problems, [Tod] was still able to ship a few thousand units and is now working on another production run with SeeedStudio. It’s a remarkable story, with the Blink(1) used by Google, Disney, Microsoft, Facebook, and a whole bunch of other huge companies. The Blink(1) is also in the mainline Linux kernel, something you can’t say about a lot of Kickstarters out there.

The First Annual Omaha Mini Maker Faire Was Definitely Something To Write Home About

September 17, 2014 by 2 Comments

If you ask me, Omaha’s first annual Mini Maker Faire was a rousing success. I think that the Faire’s coordinator, [Eric] of Omaha Maker Group would readily agree.The event was held at the Omaha Children’s Museum, an energetic and colorful backdrop for the 30 makers who were on hand to present their creations.

KITTThe representatives of the [Omaha Maker Group] had a total of three booths. One of them displayed the various fantastic things that have come out of their ‘space, which we will cover in an upcoming post. They brought the PiPhone that I told you about in my Kansas City Maker Faire post, and [Foamyguy] found a melodic easter egg hidden in the menu. [OMG] also brought their solar-powered EL wire logo sign, a quadcopter, a giant brushbot, a hexapod, a cigar box guitar, a really fun marble run, a steampunk Barbie, and KITT, their award-winning Power Racing Series car. And yeah, you bet it has a Larson scanner.

At their second booth, Fairegoers were constructing their own regular-size brushbots using 3D-printed chassis. These were specially designed to accommodate the toothbrush heads, pager motors, and CR2032s they brought to share. [Sarah] of [OMG] had her own popular booth and was showing off her costumes, clay creations, and jewelry.

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DEFCON 22: Hack All The Things

August 9, 2014 by 21 Comments

This morning I went to a fantastic talk called Hack All the Things. It was presented by GTVHacker. If you don’t recognize the name, this is the group that hacked the GoogleTV. They haven’t stopped hacking since that success, and this talk is all about 20+ devices that they’ve recently pwned and are making the info public (that link still had oath when I checked but should soon be public).

The attacks they presented come in three flavors: UART, eMMC, and command injection bugs. I’m going to add the break now, but I’ll give a rundown of most of the device exploits they showed off. I found all amusing, and often comical.

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Testing VR Limits With A Raspberry Pi

August 7, 2014 by 15 Comments

vrpi

Virtual Reality by function pushes the boundaries of what we perceive as existence, tricking the mind into believing that the computer generated environment that the user is thrust into actually contains a real place. So in the spirit of seeing what is possible in VR, a developer named [Jacques] hooked up a Raspberry Pi to an Oculus Rift. He used a computer graphics rendering API called OpenGL ES, which is much like any mobile platform found these days, to render a floating, rotating cube.

All his tests were done on a Release build which utilized the official vertex and fragment shaders. There was no attempt to optimize anything; not like there would be much to do anyways. The scene was rendered twice at 16 milliseconds per frame. From there, he attempted 27 ms per frame with texture, followed by 36 ms/frame, and then 45.

The code used can be found on [Jacques]’s Github account. A simple improvement would use a Banana Pi for better processing speed. However, don’t expect any spectacular results with this type of setup. Really, the project only proves that it’s possible to minimize a VR experience into something that could become portable. And in the same vein, the Pi + Oculus integration can produce an uncomfortable lagging effect if things are not lined up properly. But once the energy/computing power issues are addressed, VR devices could transform into a more fashionable product like Google Glass, where a simple flip of a switch would toggle the view between VR and AR into a something more mixed. And then a motion sensing input camera like this Kinect-mapping space experiment could allow people all over the world to jump into the perspectives of other reality-pushing explorers. That’s all far down the line though, but this project lays the foundation for what the future might hold.

To see [Jacques]’s full set up, view the video after the break.

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George Crowdsourcington: A 3D Printed, Community Built Statue

August 7, 2014 by 7 Comments

George Crowdsourcington and Distributed Ben Franklin

Macro 3D printing is some cool stuff — but it’s extremely time consuming and can be very expensive. Introducing We The Builders, a 3D printing crowd source site which creates large scale projects the whole country can enjoy.

Their first project was George Crowdsourcington — a 1:1 copy of the Baltimore George Washington statue made out of 110 individual pieces. They chopped the model up into 4″ cubes and created the website in order to organize and distribute the files. One of their sponsors, Tinkerine Studio, reimbursed the shipping costs for makers who helped print out parts! Since his creation, Crowdsourcington has traveled all over the country, making stops at 3D printing shows in New York, mini-Maker Faires, art galleries, science centers and more — he even did a short residency in the Adafruit office in Manhattan!

It was quite the success, so they’re starting a new statue called the Distributed Ben Franklin. This one has a whopping 198 pieces, and they hope to have it built in time for the Silver Spring and World Maker Faires.

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