Day: April 27, 2015

Italian Law Changed By The Hackaday Prize

April 27, 2015 by 29 Comments

A recent change in Italian law was spurred by the Hackaday Prize. The old law restricted non-Italian companies from hosting contests in the country. With the update Italian citizens are now welcome to compete for the 2015 Hackaday Prize which will award $500,000 in prizes.

We’ve heard very few complaints about the Hackaday Prize. When we do, it’s almost always because there are some countries excluded from participation. We’ve tried very hard to include as much of the globe as possible, some countries simply must be excluded due to local laws regarding contests. The folks from Make in Italy saw last year’s offer of a Trip into Space or $196,418 and set out to get the local laws changed (translated). Happily they succeeded!

The Make in Italy Foundation was started to encourage and support FabLabs in Italy. After seeing two major Hacker and Maker oriented contests — The 2014 Hackaday Prize and the Intel Make it Wearable contest — exclude Italian citizens from entering. Their two prong approach sought out legal counsel and started a petition on Change.org signed by about 1.8k supporters.

We’ve been holding off on the announcement as we needed our own legal opinion on the change (we’re not great at understanding Italian legal PDFs without some help). But today we have removed Italy from the list of excluded countries. Submit your entry today just by writing down your idea of a build which will solve a problem faced by a large number of people. Build something that matters and you could win a Trip into Space, $100,000 for the ‘Best Product’, or hundreds of other prizes. But we’re not waiting until the end, over the next 17 weeks we’ll be giving out $50k in prizes to hundreds of entries.

[Thanks Alessandro]

The 2015 Hackaday Prize is sponsored by:

Try Not To Fall Off The Backwards Brain Bike

April 27, 2015 by 103 Comments

[Destin] of SmarterEveryDay fame has a challenge for your brain : a bicycle where the handlebars turn the front wheel in the opposite direction of a typical bike (YouTube link). For example, turning the handlebars left turns the wheel right and vice versa. He warns you it’s harder than it looks.

The hack that pulls this off is a simple one compared to bike hacks we’ve previously covered. Gears on the head tube make this possible. It was built by his welder friends who challenged him to ride it. He couldn’t at first; determined to overwrite his brain’s memory of bike riding, he practiced until he finally succeeded. It took him eight months. When it was time to ride an old-fashioned bike, it only took him about twenty minutes to “un-learn” the Backwards Brain Bike. [Destin’s] biking illustrates neuroplasticity, memory, and learning in a fun way (fun for us; no doubt frustrating for him).

As a testament to the sponge-like brains of youth, [Destin’s] son learned to ride the Backwards Brain Bike in only two weeks.

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Workbench Eye Candy From Around The World

April 27, 2015 by 14 Comments

The workbench. We’re always looking for ways to make the most out of the tools we have, planning our next equipment purchase, all the while dealing with the (sometimes limited) space we’re allotted. Well, before you go off and build your perfect electronics lab, this forum thread on the EEVblog should be your first stop for some extended drooling research.

You’ll find a great discussion about everything from workbench height, size, organization, shelf depth, and lighting, with tons of photos to go with it. You’ll also get a chance to peek at how other people have set up their labs. (Warning, the thread is over 1000 posts long, so you might want to go grab a snack.)

We should stop for a moment and give a special note to those of you who are just beginning in electronics. You do not need to have a fancy setup to get started. Most of these well equipped labs is the result of being in the industry for years and years. Trust us when we say, you can get started in electronics with nothing more than your kitchen table, a few tools, and a few parts. All of us started that way. So don’t let anything you see here dissuade you from jumping in. As proof, we’ve seen some amazingly professional work being done with the most bare-bones of tools (and conversely, we seen some head-scratching projects by people with +$10,000 of dollars of equipment on their desk.)

Here’s some links that you might find handy when setting up a lab. [Kenneth Finnegan] has a great blog post on how his lab is equipped. And [Dave Jones] of the EEVblog has a video covering the basics. One of the beautiful things about getting started in electronics is that used and vintage equipment can really stretch your dollars when setting up a lab. So if you’re looking into some vintage gear, head on over to the Emperor of Test Equipment. Of course no thread about workbenches would be complete with out a mention of Jim Williams’ desk. We’ll leave the discussion about workbench cleanliness for the comments.

Making Music With Clojure And Bananas

April 27, 2015 by 12 Comments

At this point, the banana piano is a pretty classic hack. The banana becomes a cheap, colorful touch sensor, which looks sort of like a piano key. The Arduino sets the pin as a low-level output, then sets the pin as an input with a pull up resistor. The time it takes for the pin to flip from a 0 to a 1 determines if the sensor is touched.

[Stian] took a new approach to the banana piano by hooking it up to Clojure and Overtone. Clojure is a dialect of Lisp which runs in the Java Virtual Machine. Overtone is a Clojure library that provides tons of utilities for music making.

Overtone acts as a client to the Supercollider synthesis server. Supercollider has been around since 1996, and provides a wide array of sound synthesis functions. Overtone simply tells Supercollider what to do, letting you easily program sounds in Clojure.

The banana piano acts as an input to a Clojure program. This program maps the banana to a musical note, then triggers a note on Overtone’s built-in piano sampler. The result is a nice piano sound played with fruit. Of course, since Overtone and Supercollider are very flexible, this could be used for something much more complex.

After the break, a video of the banana piano playing some “Swedish Jazz.”

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3D Printed Metal Assembly

New 3D Printing Techniques At AMUG 2015

April 27, 2015 by 16 Comments

Sometimes there’s a lot of perks to working for a cutting edge tech company while also being a writer here at Hackaday. This week I had the opportunity to attend AMUG 2015 — the Additive Manufacturing User Group conference in Jacksonville, Florida.

I saw companies big and small, checked out the newest techniques like metal printing and mold making, and met a ton of interesting people. Join me after the break for the rundown and a video summary of my experience.

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Thursday Drink-Up In The City

April 27, 2015 by 9 Comments

Hackaday is headed to New York this week. Grab your projects and catch up with us for a tasty beverage. We’ll be hanging out at the Antler Beer & Wine Dispensary on Thursday night starting at about 7. Be part of Hackaday’s first ever social event in NYC!

This is the pre-game for our Hackathon which starts on Saturday afternoon. So far we have eight of the Hackaday crew confirmed for evening: [Brian Benchoff], [Adam Fabio], [Bil Herd], [Sophi Kravitz], [Aleksandar Bradic], [Matt Berggren], [Jasmine Brackett], and [Rob Vincent]. But hey, it wouldn’t be any fun without you there too! We want to pack the place with hardware hackers so grab your friends and RSVP using the link at the top.

This is part of our 2015 Hackaday Prize Worldwide tour. Start your entry now by hammering out a few quick ideas about a future build and we can gab about it on Thursday. See you soon!

The 2015 Hackaday Prize is sponsored by:

Slick Six-Voice Synth For AVRs

April 27, 2015 by 26 Comments

He started off making an AVR synthesized guitar, but [Erix] ended up with much more: a complete six-voice AVR wavetable synthesis song machine that’ll run on an ATMega328 — for instance, on an Arduino Uno.

If you’re an AVR coder, or interested in direct-digital synthesis or PWM audio output, you should have a look at his code (zip file). If you’d just like to use the chip to make some tunes, have a gander at the video below the break.

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