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Tracking Binary Changes: Learn the DIFF-erent Ways of the ELF
Source control is often the first step when starting a new project (or it should be, we’d hope!). Breaking changes down into smaller chunks and managing the changes between them makes it easier to...
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Hackaday Links: April 7, 2019
It’s April, which means all the people responsible for doubling the number of badges at DEF CON are hard at work getting their prototypes ready and trying to fund the entire thing. The first one out...
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A Petite Pico Projector For Portable Pi
A few years ago, new, innovative pico projectors, influenced by one of the TI development kits, started appearing in Kickstarter projects and other various DIY endeavours. Those projects fizzled out,...
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The 3D Printing Dream is Still Alive at 2019’s Midwest RepRap Festival
3D Printers have been in the hands of hackers for well over ten years, but the dream is far from over and certainly not overslept. This year’s Midwest RepRap Festival is a testament to the...
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Metal 3D Printing — a Dose of Reality
We have no doubt that hundreds of times a day a hacker is watching a 3D printer spew hot plastic and fantasizes about being able to print directly using metal. While metal printers are more common...
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Duck And Cover With This WiFi “Geiger Counter”
There’s perhaps no sound more recognizable than the frantic clicking of a Geiger counter. Not because this is some post-apocalyptic world in which everyone is personally acquainted with the operation...
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Reproducing Vintage Plastic Parts In Top-Notch Quality
Plastic is a highly useful material, but one that can also be a pain as it ages. Owners of vintage equipment the world over are suffering, as knobs break off, bezels get cracked and parts warp,...
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A Laser Cutting 101
If you’ve worked with a laser cutter before, you might not find much new in [Maker Design Lab’s] recent post about getting started. But if you haven’t, you’ll find a lot of practical advice and clean...
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Transcending the Stack with the Right Network Protocol
The increase in network-connected devices the past years has been something of a dual-edged sword. While on one hand it’s really nice to have an easy and straight-forward method to have devices talk...
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Flex PCBs Make Force-Mapping Pressure Sensor for Amputee
What prosthetic limbs can do these days is nothing short of miraculous, and can change the life of an amputee in so many ways. But no matter what advanced sensors and actuators are added to the...
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The Display For When You Want Nixies Without All The Hassle
If you want to display numbers, just go for Nixies. There’s no better way to do that job, simply because they look so cool. Unfortunately, Nixies require high voltages, controlling them is a tiny bit...
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Making A Birthday Party Magical With Smart Wands
Visitors to the Wizarding World of Harry Potter at Universal Studios are able to cast “spells” by waving special interactive wands in the air. Hackers like us understand that there must be some unknown...
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Graphene Is So Yesterday — Meet Borophene
It wasn’t long ago that graphene seemed to take the science and engineering communities by storm. You can make bits of it with a pencil and some sticky tape, yet it had all sorts of wonderful...
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Blacksmithing For The Uninitiated: Let’s Talk About Anvils
When you grow up with something as the constant backdrop to your life, it’s easy to forget as an adult that not everyone else shares your instinctive knowledge of the subject. My dad is a blacksmith,...
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Interactive Demo Shows the Power of Fourier Transforms
When it comes to mathematics, the average person can probably get through most of life well enough with just basic algebra. Some simple statistical concepts would be helpful, and a little calculus...
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Windows 3.1 In My BIOS? It’s More Likely Than You Think
It might be difficult for modern audiences to believe, but at one point Microsoft Windows fit on floppy disks. This was a simpler time, with smaller hard drives, lower resolution displays, and no...
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FindyBot3000 Is Listening And Ready To Help
It’s a problem every maker faces at one time or other – how to organise the ever-growing mass of components in the workshop. Some give up and just live with box upon box of disordered parts. That...
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Automated Tuning Of Linux Audio
Audio systems in Linux are terrible. You’ve never known true pain until you’ve tried to set up a recording or broadcasting workstation running Linux. I did, twenty years ago, and nothing has changed...
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The $50 Ham: Checking Out the Local Repeater Scene
So far in this series, we’ve covered the absolute basics of getting on the air as a radio amateur – getting licensed, and getting a transceiver. Both have been very low-cost exercises, at least in...
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This Bike Pump Now Sucks
Pulling a vacuum is something every proud maker must do once in a while. Whether you’re degassing epoxy or vacuum forming parts, you’ll need a reliable pump to get the job done. [drcrash] has just the...
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