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 2018-07-18 17:01 

Hackaday

ERRF 18: The Start of Something Great...

For years, the undisputed king of desktop 3D printing conferences has been the Midwest RepRap Festival (MRRF). Hosted in the tropical paradise that is Goshen, Indiana, MRRF has been running largely un......

 2018-07-18 16:01 

Hackaday

Hot Camera Contest: Build A Battery Powered Thermal Camera...

Here's a challenge for all you hardware hackers out there. Peter Jansen has opened up the Hot Camera Contest on Hackaday.io to use a thermal imaging camera in a battery-powered project.The challe......

 2018-07-18 15:30 

Hackaday

Transforming A Bookshelf Speaker Into A Portable Boombox...

There's a lot of fun to be had in modernizing an old boombox but what about turning one of those ubiquitous shelf speakers into a portable boombox, complete with a handle for carrying? That's what [G......

 2018-07-18 14:01 

Hackaday

What to Expect When You're Expecting A Trademark...

A trademark represents a brand, so it can be words like...

 2018-07-18 11:00 

Hackaday

DIY Tube Oven Brings the Heat to Homebrew Semiconductor Fab...

Specialized processes require specialized tools and instruments, and processes don't get much more specialized than the making of semiconductors. There's a huge industry devoted to making the equipmen......

 2018-07-18 08:00 

Hackaday

How Low Can You Go? Tiny Current Generator...

Current limited power supplies are a ubiquitous feature of the bench, and have no doubt helped prevent many calamities and much magic smoke being released from pieces of electronics. But for all their......

 2018-07-18 05:00 

Hackaday

The Biggest Corner Antenna We've Ever Seen...

Radio waves are received on antennas, for which when the signal in question comes over a long distance a big reflector is needed. When the reception distance is literally astronomical, the reflector h......

 2018-07-18 02:01 

Hackaday

Bomb Hoist Teardown Shows Cold-War-Era Big Iron...

Buying surplus equipment lends a frisson of excitement as you eagerly await the package or crate containing your purchase. Did you buy a hidden treasure, or has some shyster succeeded in unloading a p......

 2018-07-17 23:00 

Hackaday

Teensy Hat Controls Games...

[Carson] didn't know how to use an accelerometer until he wired one up to a Teensy and put it all in a hat. The result is a joystick that will probably cause you neck problems if you play video games ......

 2018-07-17 20:00 

Hackaday

Beverage Holder of Science...

The folks at [K&J Magnetics] have access to precise magnetometers, a wealth of knowledge from years of experience but when it comes to playing around with a silly project like a magnetic koozie, t......

 2018-07-17 18:30 

Hackaday

SPINES Design Makes for Modular Energy Harvesting...

The SPINES (Self-Powered IoT Node for Environmental Sensing) Mote is a wireless IoT environmental sensor, but don't let the neatly packed single PCB fool you into thinking it's not hackable. [Macro Ya......

 2018-07-17 17:00 

Hackaday

Franoise Barr-Sinoussi: Virus Hunter...
 2018-07-17 15:30 

Hackaday

Emotional Hazards That Lurk Far From The Uncanny Valley...

A web search for...

 2018-07-17 14:01 

Hackaday

Let's Talk About Elon Musk's Submarine...

When word first broke that Elon Musk was designing a kid-sized submarine to help rescue the children stuck in Thailand's Tham Luang cave, it seemed like a logical thing for Hackaday to cover. An e......

 2018-07-17 11:00 

Hackaday

Freak Out Your Smartphone with Ultrasound...

There's a school of thought that says complexity has an inversely proportional relation to reliability. In other words, the smarter you try to make something, the more likely it is to end up failing f......

 2018-07-17 08:00 

Hackaday

CortexProg Is A Real ARM-Twister...

We've got a small box of microcontroller programmers on our desktop. AVR, PIC, and ARM, or at least the STMicro version of ARM. Why? Some program faster, some debug better, some have nicer cables, and......

 2018-07-17 05:00 

Hackaday

Row Your Bike To China...

If you're a fan of endurance racing motor vehicles, there's one that puts the 24 Hours of Le Mans, the Dakar Rally, and the Baja 1000 to shame, and the race doesn't even involve cars. Indeed, the vehi......

 2018-07-17 02:00 

Hackaday

Fail of the Week: When Good Foundries Go Bad...

Like many of us, [Tony] was entranced by the idea of casting metal, and set about building the tools he'd need to melt aluminum for lost-PLA casting. Little did he know that he was about to exceed the......

 2018-07-16 23:00 

Hackaday

Global Radio Direction Finding in Your Browser...

Radio direction finding is one of those things that most Hackaday readers are likely to be familiar with at least on a conceptual level, but probably without much first-hand experience. After all it's......

 2018-07-16 20:00 

Hackaday

Replace Old Electrolytics? Not So Fast... Maybe...

[CuriousMarc] was restoring an old Model 19 TeleType. The design for these dates back to the 1930s, and they are built like tanks (well, except for the ones built during the war with parts using cheap......

 2018-07-16 18:30 

Hackaday

3D Printer Guardian Watches for Worst-case Failures...

Some devices have one job to do, but that job can have many facets. To [jmcservv], an example of this is the job of protecting against worst-case failures in a 3D printer, and it led him to develop th......

 2018-07-16 17:01 

Hackaday

Review: SMD Tweezer Meter or Tweezer Probes For Your Multimeter?...

It's remarkable how tiny electronics have become. Heaven knows what an old-timer whose experience started with tubes must think, to go from solder tags to SMD in a lifetime is some journey. Even the......

 2018-07-16 16:01 

Hackaday

Human-Computer Interface Challenge: Change How We Interact with Computers, Win Prizes...

Pay no attention to the man behind the curtain. It's a quote from the Wizard of Oz but also an interesting way to look at our interactions with electronics. The most natural interactions free us fro......

 2018-07-16 15:00 

Hackaday

A Microwave Erector Set...

RF design isn't always easy, especially at higher frequencies. Despite improvements in simulation tools, there's still no substitute for prototyping and trying out different things. That wasn't so bad......

 2018-07-16 14:01 

Hackaday

Getting the Lead Out of Lithium Battery Recycling...

When that fateful morning comes that your car no longer roars to life with a quick twist of the key, but rather groans its displeasure at the sad state of your ride's electrical system, your course is......

 2018-07-16 11:00 

Hackaday

Acrylic Stencils Help with Component Placement for SMD Assembly...

Surface mount is where the action is in the world of DIY PCBs, and deservedly so. SMDs are so much smaller than through-hole components, and fewer holes to drill make surface-mount PCBs easier to manu......

 2018-07-16 08:00 

Hackaday

It's 1984, And You Can't Afford A Computer. Never Mind, Have This Pop-Up Paper One Instead!...

It's an oft-derided sentiment from a Certain Type of Older Person, that the Youth of Today don't know how lucky they are with their technology. Back when they were young they were happy with paper and......

 2018-07-16 05:00 

Hackaday

Incredible Atari 800XL Case Restoration...

If you've been hanging around Hackaday for a while, you know that a large portion of the stuff we publish goes above and beyond what most people would consider a reasonable level of time and effort. O......

 2018-07-16 02:00 

Hackaday

Dual Source Laser Cutter Built Like a Tank, Cuts Most Anything...

Laser cutters aren't the sort of thing that you might think about making at home, but there's no reason not to if you are careful and do your research. That's what [Daniele Ingrassia] did with the Las......

 2018-07-15 23:00 

Hackaday

Hackaday Links: July 15, 2018...

Have you tried Altium CircuitMaker? Uh, you probably shouldn't. [Dave] of EEVBlog fame informs us via a reliable source that CircuitMaker is intentionally crippled by adding a random sleep on high pa......

 2018-07-15 20:00 

Hackaday

Harvesting Power From Microwave Popcorn...

One of the challenges in this year's Hackaday Prize is Power Harvesting where we're asking everybody to create something that harvests energy from something. It could be solar, it could be harvesting......

 2018-07-15 17:00 

Hackaday

Interactive Mandelbrot Set Viewer Runs on FPGAs...

The Mandelbrot Set is a mathematical oddity where a simple function creates an infinitely complex landscape that you can literally zoom into forever. Like most people, I've downloaded Mandelbrot set v......

 2018-07-15 14:00 

Hackaday

Stepper Motor? Encoder? It's Both!...

We always think it is interesting that a regular DC motor and a generator are about the same thing. Sure, each is optimized for its purpose, but inefficiencies aside, you can use electricity to rotate......

 2018-07-15 11:00 

Hackaday

Drive Big Servos With Ease...

CNC machines of all types are a staple here at Hackaday, in that we have featured many CNC builds over the years. But the vast majority of those that we see are of relatively modest size and assembled......

 2018-07-15 08:00 

Hackaday

Watney: A Fully 3D Printed Rover Platform...

We're getting to the point that seeing 3D printed parts in a project or hack isn't as exciting as it was just a few years ago. The proliferation of low-cost desktop 3D printers means that finding a pr......

 2018-07-15 05:00 

Hackaday

Robot Maps Rooms with Help From iPhone...

The Unity engine has been around since Apple started using Intel chips, and has made quite a splash in the gaming world. Unity allows developers to create 2D and 3D games, but there are some other int......

 2018-07-15 02:00 

Hackaday

IoT Solar Pool Heating...

A backyard swimming pool can be a great place to take a refreshing dip on a summer's day. It can also be a place to freeze your giblets off if the sun has been hiding for even a few hours. That can ma......

 2018-07-14 23:00 

Hackaday

3D Printed Variable Area Jet Nozzle...

If you've ever seen the back end of a military jet, you've likely seen variable area nozzles. They're used to adjust the exhaust flow out of the rear of a jet engine during supersonic flight and while......

 2018-07-14 20:00 

Hackaday

Charging USB-C Devices Off Of LiPo Battery Packs...

When it was introduced in the late 90s, USB was the greatest achievement in all of computing. Gone were the PS/2 connectors for keyboards and mice, ADB ports, parallel ports, game ports, and serial po......

 2018-07-14 17:00 

Hackaday

Blinging Buttons for Pick and Place...

With 3D-printing, cheap CNC machines, and the huge variety of hardware available these days, really slick-looking control panels are getting to be commonplace. We're especially fond of those nice indi......

 2018-07-14 14:00 

Hackaday

Casting a 3D Printed Extruder Body in Aluminum...

Creating 3D prints is great, but sometimes you need something more durable. [Myfordboy] printed a new 3D printer extruder in PLA and then used the lost PLA method to cast it in aluminum. You can see t......

 2018-07-14 11:00 

Hackaday

A Tale Of More Than One Amiga 1500...

If you were an Amiga enthusiast back in the day, the chances are you had an Amiga 500, and lusted after a 2000 or maybe later a 3000. Later still perhaps you had a 600 or a 1200, and your object of de......

 2018-07-14 08:00 

Hackaday

Bandpass Filters from the CNC Mill...

A bandpass allows a certain electrical signal to pass while filtering out undesirable frequencies. In a speaker bandpass, the mid-range speaker doesn't receive tones meant for the tweeter or woofer. M......

 2018-07-14 05:00 

Hackaday

Explore Low-Energy Bluetooth by Gaming...

For several years now, a more energy-efficient version of Bluetooth has been available for use in certain wireless applications, although it hasn't always been straightforward to use. Luckily now ther......

 2018-07-14 02:00 

Hackaday

Quantum Computing For Computer Scientists...

Quantum computing is coming, so a lot of people are trying to articulate why we want it and how it works. Most of the explanations are either hardcore physics talking about spin and entanglement, or v......

 2018-07-13 23:00 

Hackaday

Custom Circuit Makes for Better Battery Level Display...

Isn't it always the way? There's a circuit right out of the textbooks, or even a chip designed to do exactly what you want -- almost exactly. It's 80% perfect for your application, and rather than acc......

 2018-07-13 20:00 

Hackaday

Mademoiselle Pinball Table Gets Rock 'n Roll Makeover...

Once upon a time, there was a music venue/artist collective/effects pedal company that helped redefine industry in Williamsburg, Brooklyn. That place was called Death By Audio. In 2014, it suffered a ......

 2018-07-13 18:30 

Hackaday

This Is Your Last Chance To Design The Greatest In Power Harvesting...

This is your last weekend to get your project together for the Power Harvesting Challenge in this year's Hackaday Prize. We're looking for projects that harvest energy from the ether, and power electr......

 2018-07-13 17:01 

Hackaday

ERRF 18: New Products Make their Debut...

While ostensibly the purpose of the recent East Coast RepRap Festival (ERRF) was to celebrate the 3D printing community and culture, it should come as no surprise that more than a few companies decid......

 2018-07-13 15:30 

Hackaday

Supersize DIY R/C Servos From Windscreen Wipers...

We're all familiar with the experience of buying hobby servos. The market is awash with cheap clones which have inflated specs and poor performance. Even branded servos often fail to deliver, and some......

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