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Fresh hacks every day

Last Build Date: Sat, 24 Mar 2018 01:25:15 +0000


DIY Perpetual Flip CalendarFlip_Featurerichhack

Fri, 23 Mar 2018 23:00:53 +0000

Flip calendars are a neat little piece of history. Sold as tourist trinkets, they sit on your desk and show the current day of the month and, depending on the particular calendar, month and year. Each day, you rotate it and it shows you the current date. At the end of February, you rotate it a bunch of times to get from February 28th (or 29th) to March 1st. [measuredworkshop] always had fun flipping the dates on his parents’ flip calendar, so decided to build his own wooden one.

The calendars consist of a series of tiles with the dates …read more

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Building A Plate Reverb On The Cheapreverb_feattomnardi

Fri, 23 Mar 2018 20:00:45 +0000

For those who don’t spend their free time creating music with experimental audio effects, a plate reverb is essentially a speaker. It just happens to be, by design, a rather poor one. Rather than using a paper cone for a diaphragm like a traditional speaker, the plate reverb uses as you might guess, a metal plate. As the plate vibrates along with the source audio, a set of piezoelectric pickups convert that to an output. The end result is that audio fed into the plate reverb comes out with a nice echo effect.

But despite their relative simplicity, a plate …read more

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We’re Making it Rain Achievements This Yearachievements-thp-featuredMike Szczys

Fri, 23 Mar 2018 18:31:33 +0000

We just dished out the first round of achievements to a bunch of hardware projects and there’s a lot more to come.

You may have missed it in all the fanfare last week, so today we take a closer look. Achievements are the newest edition to the Hackaday Prize and we’re really excited about them! With so much creativity in the projects we see entered, these achievements recognize a range of different aspects from serious to lighthearted, and even the downright absurd. There can be only 20 finalists in each challenge of the Prize, but there can be dozens of …read more

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Hackaday Visits World’s Oldest Computer Festival: TCF 43tcf43_feattomnardi

Fri, 23 Mar 2018 17:01:06 +0000

I was fortunate enough to visit the Trenton Computer Festival last weekend. The show struck a very interesting mix of new and old, commercial and educational. Attendees were writing programs in BASIC on an Apple I (courtesy of the Vintage Computer Federation) not more than five feet from where students were demonstrating their FIRST robot.

The one-day event featured over fifty demonstrations, talks, and workshops on topics ranging from a crash course in lock picking to the latest advancements in quantum computing. In the vendor room you could buy a refurbished laptop while just down the hall talks were being …read more

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Servos Do the Plucking in this MIDI Music Boxmusic boxdpsm64

Fri, 23 Mar 2018 15:30:00 +0000

It started with a cheap, punch-card programmable manual music box. Thirty-one hobby servos later, it ended as an automated MIDI music box, with a short pit stop as a keyboard-driven MIDI device.

If you think you’ve seen the music box in [mitexela]’s video below before, you’re right. [Martin], musician, inventor, and father of the marvelous marble music machine, took an interest in these music boxes and their programming a while back. Like [Martin], [mitexela] started his music box project with punch card programming, but he quickly grew tired of the bothersome process, even after automating production with a laser cutter. He decided …read more

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Ever Wonder How The Bots On Robot Wars Were Built?SMIDSYjennylistSMIDSY in the pits for series 5 of the UK Robot Wars TV show. From left to right: [Andy Pugh], [Robin Bennett], and [Mik Reed]. RIP [Mik].SMIDSY in one of its earlier incarnations.The first SMIDSY chassis, showing the Sturmey Archer gearboxes in situ.The PVC cooling air duct used on the first SMIDSY chassis, with the motors side-by-side and before installation of gauze over the air exhaust holes in the motor housing. The later chassis had the motors in-line, and used an aluminium duct.SMIDSY's chassis, showing the Iskra motor and later disc weapon.A SMIDSY skin from 2002. Those Gnashing Jaws Of Doom probably had more of the Toothless Gums Of Disappointment about them, but we thought it sounded good at the time.

Fri, 23 Mar 2018 14:01:21 +0000

Building a robot that can do anything well is a tough challenge. Building one that can stand up to another robot trying to violently put it out of commission is an even harder task. But it makes for some entertaining television! It is this combination that thrust a few creative robot building teams into the world of Robot Wars.

SMIDSY, short for the insubstantial excuse heard by many a motorcyclist “Sorry Mate, I Didn’t See You”, is a robot that competed in several seasons of the British incarnation of the Robot Wars TV show. It wasn’t the most successful …read more

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Stecchino Game is all about Balancing a Big ToothpickStecchino Featureddp2cnk

Fri, 23 Mar 2018 11:00:00 +0000

Self-described “Inventor Dad” [pepelepoisson]’s project is called Stecchino (English translation link here) and it’s an Arduino-based physical balancing game that aims to be intuitive to use and play for all ages. Using the Stecchino (‘toothpick’ in Italian) consists of balancing the device on your hand and trying to keep it upright for as long as possible. The LED strip fills up as time passes, and it keeps records of high scores. It was specifically designed to be instantly understood and simple to use by people of all ages, and we think it has succeeded in this brilliantly.

To sense orientation …read more

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