Hack a Day
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  • Industrial designer [Eric Strebel] has access to big, walk-in spray booths, but bigger isn’t always better. For small jobs, it’s overkill, and he wanted his own spray booth anyway. If you’re ready to upgrade from that ratty old cardboard box in the garage, look no further than [Eric]’s spray booth how-to after the break. If you don’t already know, [Eric] is something of a foam core legend. He has ...

Hack a Day
Hack a Day
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  • We’re all too spoiled nowadays with our comfortable ways to erase and write data to persistent memory, whether it’s our microcontroller’s internal flash or some external EEPROM. Admittedly, those memory technologies aren’t exactly new, but they stem from a time when their predecessors had to bathe under ultraviolet light in order to make space for something new. [Taylor Schweizer] recently came ac...

Hack a Day
Hack a Day
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  • One of the reasons why the Arduino became so popular was the ability to program it with ease. It meant the end of big parallel programmers that would cost an arm and a leg. The latest installment of CircuitPython from [Lady Ada] and the team over at Adafruit is a library for programming AVR microcontrollers without a dedicated PC. For the uninitiated, in-system programming or ISP for AVR controlle...

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Hack a Day
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  • We all built cardboard forts when we were kids. [Paintingcook] has taken it into adulthood with a hand built cardboard wall. He and his wife leased a loft apartment. Lofts are great — one giant space to work with. Plans changed a bit when they found out they had a baby on the way. A single living, working, and sleeping space definitely wouldn’t be good for a newborn, so the couple set about separa...

Hack a Day
Hack a Day
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  • If you were a kid in the 1980s you might have been lucky enough to score a Big Trak — a robotic toy you could program using a membrane keyboard to do 16 different motions. [Howard] has one, but not wanting to live with a 16-step program, he gave it a brain transplant with an Arduino and brought it on [RetroManCave’s] video blog and you can see that below. If you want to duplicate the feat and your...

Hack a Day
Hack a Day
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  • An Arduino and a data radio can make a great remote sensor node. Often in such situations, the hardware ends up installed somewhere hard to get to – be it in a light fitting, behind a wall, or secreted somewhere outdoors. Not places that you’d want to squeeze a cable repeatedly into while debugging. [2BitOrNot2Bit] decided this simply wouldn’t do, and decided to program the Arduinos over the air i...

Hack a Day
Hack a Day
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  • When you acquired your first oscilloscope, what were the first waveforms you had a look at with it? The calibration output, and maybe your signal generator. Then if you are like me, you probably went hunting round your bench to find a more interesting waveform or two. In my case that led me to a TV tuner and IF strip, and my first glimpse of a video signal. An analogue video signal may be somethin...

Hack a Day
Hack a Day
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  • The new hotness in home automation is WiFi controlled light switches. Sure, we’ve had computer-controlled home lighting for literally forty years with X10 modules, but now we have VC money pouring into hardware, and someone needs to make a buck. A few years ago, [Alex] installed WiFi switches in a few devices in his house and discovered the one downside to the Internet of Light Switches — his ligh...

Hack a Day
Hack a Day
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  • Humans are very good at watching others and imitating what they do. Show someone a video of flipping a switch to turn on a CNC machine and after a single viewing they’ll be able to do it themselves. But can a robot do the same? Bear in mind that we want the demonstration video to be of a human arm and hand flipping the switch. When the robot does it, the camera that is its eye will be seeing its r...

Hack a Day
Hack a Day
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  • Nothing says friendship like a reverse engineering challenge on unknown terrain as a birthday present. When [Rikaard] turned 25 earlier this year, his friend [Veydh] put together a Capture the Flag challenge on an ESP8266 for him. As a software guy with no electronics background, [Rikaard] had no idea what he was presented with, but was eager to find out and to document his journey. Left without g...

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  • There are plenty of PC joysticks out there, but that didn’t stop [dizekat] from building his own. Most joysticks mechanically potentiometers or encoders to measure position. Only a few high-end models use Hall effect sensors. That’s the route [dizekat] took. Hall effect sensors are non-contact devices which measure magnetic fields. They can be used to measure the position and orientation of a magn...

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Hack a Day
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  • Long ago, when mainframes ruled the earth, computers were mute. In this era before MP3s and MMUs, most home computers could only manage a simple beep or two. Unless you had an add-on device like the Covox Speech Thing, that is. This 1986 device plugged into your parallel port and allowed you to play sound. Glorious 8-bit, mono sound. [Yeo Kheng Meng] had heard of this device, and wondered what it ...

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Hack a Day
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  • It has become commonplace to yell out commands to a little box and have it answer you. However, voice input for the desktop has never really gone mainstream. This is particularly slow for Linux users whose options are shockingly limited, although decent speech support is baked into recent versions of Windows and OS X Yosemite and beyond. There are four well-known open speech recognition engines: C...

Hack a Day
Hack a Day
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  • If you’ve played Valve’s masterpiece Portal, there’s probably plenty of details that stick in your mind even a decade after its release. The song at the end, GLaDOS, “The cake is a lie”, and so on. Part of the reason people are still talking about Portal after all these years is because of the imaginative world building that went into it. One of these little nuggets of creativity has stuck with [A...

Hack a Day
Hack a Day
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  • Back in the old days, when we were still twiddling bits with magnetized needles, changing the data on an EPROM wasn’t as simple as shoving it in a programmer. These memory chips were erased with UV light shining through a quartz window onto a silicon die. At the time, there were neat little blacklights in a box sold to erase these chips. There’s little need for these chip erasers now, so how do yo...

Hack a Day
Hack a Day
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  • We once knew a guy who used to tell us that the first ten times he flew in an airplane, he jumped out of it. It was his eleventh flight before he walked off the plane. [Mathias Lasser] has a similar story. Despite being one of the pair who decoded the iCE40 bitstream format a few years ago, he admits in his 34C3 talk that he never learned how to use FPGAs. His talk covers how he reverse engineered...

Hack a Day
Hack a Day
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  • Do you remember your first instrument, the first device you used to measure something? Perhaps it was a ruler at primary school, and you were taught to see distance in terms of centimetres or inches. Before too long you learned that these units are only useful for the roughest of jobs, and graduated to millimetres, or sixteenths of an inch. Eventually as you grew older you would have been introduc...

Hack a Day
Hack a Day
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  • An underappreciated facet of the maker movement is wearable technology. For this week’s Hack Chat, we’re going to be talking all about wearable and fashion tech. This includes motors, lighting, biofeedback, and one significantly overlooked aspect of wearables, washability. For this week’s Hack Chat, we’re sitting down with Kathryn Blair and Shannon Hoover to talk about the workability and washabil...

Hack a Day
Hack a Day
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  • Researchers have recently announced a vulnerability in PC hardware enabling attackers to wipe the disk of a victim’s computer. This vulnerability, going by the name Joykill, stems from the lack of proper validation when enabling manufacturing system tests. Joykill affects the IBM PCjr and allows local and remote attackers to destroy the contents of the floppy diskette using minimal interaction. Th...

Hack a Day
Hack a Day
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  • As hackers, we like to think of ourselves as a logical bunch. But the truth is, we are as subject to fads as the general public. There was a time when the cool projects swapped green LEDs out for blue ones or added WiFi connectivity where nobody else had it. Now all the rage is to connect your project to a personal assistant. The problem is, this requires software. Software that lives on a publicl...

Hack a Day
Hack a Day
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  • Sometimes when you walk into a hackerspace you will see somebody’s project on the table that stands so far above the norm of a run-of-the-mill open night on a damp winter’s evening, that you have to know more. If you are a Hackaday scribe you have to know more, and you ask the person behind it if they have something online about it to share with the readership. [Jolar] was working on his 3D scanne...

Hack a Day
Hack a Day
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  • It may not be the typical fare that we like to feature, but you can’t say this one isn’t a hack. It’s a camp trailer fashioned from the back half of a wrecked Honda Civic, and it’s a pretty unique project. We don’t know about other parts of the world, but a common “rural American engineering” project is to turn the bed and rear axle of an old pickup truck into a trailer. [monickingbird]’s hacked C...

Hack a Day
Hack a Day
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  • The Raspberry Pi came upon us as an educational platform. A credit card sized computer capable of running Linux from a micro SD card, the Raspberry Pi has proven useful for far more than just education. It has made its way into every nook and cranny of the hacker world. There are some cases, however, where it might be a bit slow or seem a bit under powered. One way of speeding the Raspi up is to o...

Hack a Day
Hack a Day
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  • Big corporations shuffle people around all the time. More often than not, these reorganization efforts end up as a game of musical chairs where all the executives end up with more pay, everybody else’s work are disrupted, and nothing substantial actually changes. Intel just moved some high level people around to form a dedicated security group. Let’s all hope it will make a difference. When news o...

Hack a Day
Hack a Day
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  • It wouldn’t be much of a stretch to say that here at Hackaday, we’re about as geeky as they come. Having said that, even we were surprised to hear that there are people out there who collect elements. Far be it from us to knock how anyone else wishes to fill their days, but telling somebody at a party that you collect chemical elements is like one step up from saying you’ve got a mold and fungus c...

Hack a Day
Hack a Day
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  • If you’re an Android fan, there’s a good chance you’ve heard of the Nexus 5X. The last entry in Google’s line of low-cost Nexus development phones should have closed the program on a high note, or at the very least maintained the same standards of quality and reliability as its predecessor. But unfortunately, a well known design flaw in the Nexus 5X means that the hardware is essentially a time-bo...

Hack a Day
Hack a Day
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  • A few semesters back, [Jordan] was in an Intro to Hardware Security course at CMU. The final project was open ended, and where some students chose projects like implementing a crypto algorithm or designing something on an FPGA, [Jordan] decided to do something a little more ambitious. He wanted to decapsulate and reverse engineer an IC. No, this isn’t taking a peek at billions of transistors — [Jo...

Hack a Day
Hack a Day
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  • It’s a great time to be a hobbyist. No matter how you feel about the Arduino/Raspberry Pi effect, the influx of general enthusiasm and demand it has created translates to better availability of components, a broader community, and loads of freely available knowledge. When people have access to knowledge and ideas, great things can happen. Tools that were once restricted to industrial use become op...

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