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An Englishman’s Home Is His (Drone-Defended) Castle
Retiring to the garden for a few reflective puffs on the meerschaum and a quick shufti through the Racing Post, and the peace of the afternoon is shattered by the buzz of a drone in the old...
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E-Mail Service Claims it Doesn’t Store Your Mail
There have been many news stories lately about companies misusing your data, including your e-mails. What’s more, these giant repositories of data are favorite targets for hackers. Even if you trust...
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Making Colored Smoke Devices, The Right Way
Pyrotechnics are fun, and, with the proper precautions taken, safe enough to play with at home (usually). While it’s typical to purchase fireworks and smoke devices off the shelf, it’s actually...
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Single Board Computer Plays Nice with NVIDIA GPU
It’s about convenience when it comes to single board computers. The trade-off of raw compute power for size means the bulk of them end up being ARM based, but there are a few exceptions like the x86...
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Arduino Gets a Command Line Interface
When using an Arduino, at least once you’ve made it past blinking LEDs, you might start making use of the serial connection to send and receive information from the microcontroller. Communicating with...
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A $4 Ultrasonic Theremin Looks Cheesy on Purpose
We don’t think [bleepbit] will take offense when we say the “poor man’s theremin” looks cheesy — after all, it was built in a cheese container. Actually, it isn’t a bad case for a simple device, as...
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Robot Never Misses Leg Day
We have heard bipedal walking referred to as a series of controlled falls, or one continuous fall where we repeatedly catch ourselves, and it is a long way to fall at 9.8m/s2. Some of us are more...
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A Fleet of Pressure Washers Powers This Interactive Public Fountain
Public art installations can be cool. Adding in audience interactivity bumps up the coolness factor a bit. Throw civic pride, dancing jets of water, music, and lights into the project, and you get...
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Belt Up With A Redundant Car Part
The toothed belt that turns the camshaft in synchronization with the crankshaft on many motor vehicle engines is something of an under-appreciated component. Unless you are unlucky enough to ave had...
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Hackaday Links: The Eleventh Day Of The Eleventh Month, 2018
For the better part of the last five years, the Great War Channel on YouTube has been covering the events of the Great War, week by week, exactly 100 years later. It’s hundreds of episodes designed...
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The Naughty AIs That Gamed The System
Artificial intelligence (AI) is undergoing somewhat of a renaissance in the last few years. There’s been plenty of research into neural networks and other technologies, often based around teaching an...
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A Daylight-Readable Bar Graph Display in the 70s Wasn’t Cheap
The driver board with display attached; the row of lamps is visible on the right hand side. LEDs weren’t always an easy solution to displays and indicators. The fine folks at [Industrial Alchemy]...
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How To Evolve A Radio
Evolutionary algorithms are an interesting topic of study. Rather then relying on human ingenuity and investigation to create new designs, instead, an algorithm is given a target to achieve, and...
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Arduino Provides Hands-Free Focus for Digital Inspection Scope
With surface-mount technology pushing the size of components ever smaller, even the most eagle-eyed among us needs some kind of optical assistance to do PCB work. Lots of microscopes have digital...
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Hacked Heating Instruments for the DIY Biology Lab
[Justin] from The Thought Emporium takes on a common molecular biology problem with these homebrew heating instruments for the DIY biology lab. The action at the molecular biology bench boils down to...
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Advent Calendar Tracks The Days Until Christmas
What’s a hacker to do when Halloween’s over and a new source of ideas is needed for more hacks? Make something for Christmas of course. That’s what [Dario Breitenstein] did when he made his Advent...
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Low-energy ESP8266-based Board Sleeps Like a Log Until Triggered
Given the popularity of hacking and repurposing Amazon Dash buttons, there appears to be a real need amongst tinkerers for a simple “do something interesting on the internet when a button is pressed”...
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Unique Flat-Screen Display Put to Use in CRT Game Boy
The cathode-ray tube ruled the display world from the earliest days of TV until only comparatively recently, when flat-screen technology began to take over. CRTs just kept getting bigger over that...
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Non-Nefarious Raspberry Pi Only Looks Like a Hack
We’re going to warn you right up front that this is not a hack. Or at least that’s how it turned out after [LiveOverflow] did some digital forensics on a mysterious device found lurking in a college...
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What’s the Difference? Ask an Op Amp
If you’ve ever wondered why an op amp has the little plus and minus symbols on it, its because at the heart of it, the device is a differential amplifier. The problem is that — ideally, at least — it...
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