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Fresh hacks every day
Site URL: hackaday.com
Feed URL: hackaday.com/blog/feed
Posts: 66
Followers: 15
Hackaday Podcast Episode 379: Driving E-ink DIY, NES on ESP, and the Other IRC
Published: July 24, 2026 16:40
On this episode, Hackaday editors Elliot Williams and Tom Nardi discuss their love of electronic paper, clunky cartridges, and keeping old games alive by any means possible. You’ll also hear …read more
Keeping Mosquitoes Away with Catnip-Based Repellent
https://hackaday.com/2026/07/24/keeping-mosquitoes-away-with-catnip-based-repellent/
Published: July 24, 2026 15:30
Despite their small size, mosquitoes are one of the deadliest creatures on Earth, and keeping them away from you is one of the best ways to stay safe. DEET has …read more
This Week in Security: AI is a Mess, Hacking Car Chargers, an OpenSSL DoS, and Factories Under Attack
Published: July 24, 2026 14:00
[Ayush Paul] posts about extracting data from Claude agents while it accesses web data to fulfill user requests. But it wasn’t that easy. [Ayush] discovered that Anthropic anticipated many of …read more
Exploring Hidden JPEG Features
https://hackaday.com/2026/07/24/exploring-hidden-jpeg-features/
Published: July 24, 2026 11:00
The lossy compression algorithm used by JPEG was useful for those on the early Internet not only because it enabled pictures to be shared easier, but because it allows a …read more
A New Blood Hack For An Old Game
https://hackaday.com/2026/07/24/a-new-blood-hack-for-an-old-game/
Published: July 24, 2026 08:00
Even before 3D graphics and advanced shaders became common in the gaming world, there were concerns that virtual violence looked too realistic. Fighting games in the 1990s were routinely toned-down …read more
New Method Accelerates Color 3D Printing
https://hackaday.com/2026/07/23/new-method-accelerates-color-3d-printing/
Published: July 24, 2026 05:00
Multi-color 3D printing is notorious for being difficult to get right. Even with modern printers, you often end up much using more filament (and tool changes) than you would for …read more
Targeting Allele-Specific Faulty mRNA in SCNA2 Mutation Patients
https://hackaday.com/2026/07/23/targeting-allele-specific-faulty-mrna-in-scna2-mutation-patients/
Published: July 24, 2026 02:00
When an individual is born with genetic defects, there are a few ways to deal with the impact of the faulty genes. The most extreme solution is direct DNA editing …read more
BASICally, Its Retro Machine Language
https://hackaday.com/2026/07/23/basically-its-retro-machine-language/
Published: July 23, 2026 23:00
We enjoyed [Beej’s] trip down memory lane looking at a BASIC game, The Wizard’s Castle, written for the Exidy Sorcerer. It appeared in a 1980 magazine that included the title …read more
A Train Departure Board For The Home
https://hackaday.com/2026/07/23/a-train-departure-board-for-the-home/
Published: July 23, 2026 20:00
Trains are a great way to get around. You just have to make sure you’re across the schedule if you intend to get where you’re going in a timely manner. …read more
Mic Jammer Relies on Ultrasound
https://hackaday.com/2026/07/23/mic-jammer-relies-on-ultrasound/
Published: July 23, 2026 18:30
Today’s phone microphones are perfectly adept at picking up sound in all sorts of conditions, and they’re backed by all kinds of processing techniques to filter out noise and capture …read more
Hackaday Europe 2026: Half Quad, Half Blimp: Test. Fly. Survive.
https://hackaday.com/2026/07/23/hackaday-europe-2026-half-quad-half-blimp-test-fly-survive/
Published: July 23, 2026 17:00
A great many drones out there, whether homebuilt or store-bought, follow the same basic format. Four motors, some kind of controller, and a lithium-polymer battery supplying the juice to keep …read more
Running DOOM on a Custom CPU Built From Scratch
https://hackaday.com/2026/07/23/running-doom-on-a-custom-cpu-built-from-scratch/
Published: July 23, 2026 15:30
Running DOOM on weird obscure hardware is a fun hacker pastime that’s been around for a long time now. It’s always enjoyable to see someone port it to an egg timer, …read more
Encryption in the 1790s
https://hackaday.com/2026/07/23/encryption-in-the-1790s/
Published: July 23, 2026 14:00
For as long as humans have had writing, there’s been a need to send secret messages. It is easy to think that Enigma machines and their immediate predecessors are old …read more
Saving Some Coin With 3D Printed Stencils
https://hackaday.com/2026/07/23/saving-some-coin-with-3d-printed-stencils/
Published: July 23, 2026 11:00
One of the extra tools someone might need when working with surface-mount components is a solder paste stencil, which not only simplifies the application of solder paste to a PCB …read more
Voice Control Toolkit Comes to a Pico Near You
https://hackaday.com/2026/07/23/voice-control-toolkit-comes-to-a-pico-near-you/
Published: July 23, 2026 08:00
Voice-controlled appliances are nothing new. What might be new, however, is [Moonshine AI] running it all locally on a Raspberry Pi Pico 2 W! The voice interface is roughly divided …read more
Industrial GPU Adapted for the Desktop
https://hackaday.com/2026/07/22/industrial-gpu-adapted-for-the-desktop/
Published: July 23, 2026 05:00
As technologies change and adapt, we’re often left with seemingly useless junk that has nowhere to go. Certainly anyone still sitting on a pile of floppy disks feels this way …read more
V Formation Flying of Birds is Explained by a Minimal Wake–Vortex Model
Published: July 23, 2026 02:00
Although it’s commonly suspected that migratory birds fly in a ‘V’ formation due to this saving energy for the birds in the slipstream, understanding the exact aerodynamics behind this and …read more
An LLM in the Kitchen
https://hackaday.com/2026/07/22/an-llm-in-the-kitchen/
Published: July 22, 2026 23:00
Have you ever been looking up a recipe for something new and been stymied by the directions being a wall of text, especially to find that one detail right when …read more
FLOSS Weekly Episode 876: There Is No Money Fairy
https://hackaday.com/2026/07/22/floss-weekly-episode-876-there-is-no-money-fairy/
Published: July 22, 2026 20:00
This week Jonathan chats with Michael Meeks about Collabora! What’s the origin story in this consulting company, why do they have an outstanding office suite, and where is the world …read more
The Need for Speed: Internet Speed Measurement (or DIY?)
https://hackaday.com/2026/07/22/the-need-for-speed-internet-speed-measurement-or-diy/
Published: July 22, 2026 18:00
Car enthusiasts want to know how quickly they can make a quarter mile. Weightlifters are forever trying to add one more plate to the bar. Internet denizens have their own …read more
Dress Up Your YubiKey With This Web-Based Tool
https://hackaday.com/2026/07/22/dress-up-your-yubikey-with-this-web-based-tool/
Published: July 22, 2026 15:30
The combination of hardware required to make use of this project is specific enough that we imagine only a relatively limited number of readers will actually be able to try …read more
Compile Here, Run Everywhere: Crosstool-Ng
https://hackaday.com/2026/07/22/compile-here-run-everywhere-crosstool-ng/
Published: July 22, 2026 14:00
In a recent post, I mentioned that I wanted to build some tools for a stripped-down Linux running on a 3D printer with a MIPS CPU. I had two options: …read more
Old TV Vacuum Tube Turned DIY X-Ray Machine
https://hackaday.com/2026/07/22/old-tv-vacuum-tube-turned-diy-x-ray-machine/
Published: July 22, 2026 11:00
Just because you probably shouldn’t make a DIY X-ray machine, doesn’t mean nobody would. [mircemk] shows off his DIY unit, how it works, how to use it safely and of …read more
60 FPS NES Emulator on ESP32
https://hackaday.com/2026/07/22/60-fps-nes-emulator-on-esp32/
Published: July 22, 2026 08:00
At least in theory, video games are more resistant to becoming lost media thanks to their digital nature — they’re easy to copy and emulators have saved many titles that …read more
A Smarter DIY Air Filter
https://hackaday.com/2026/07/21/a-smarter-diy-air-filter/
Published: July 22, 2026 05:00
As predominantly indoor creatures, it’s important to maintain a healthy habitat for the hacker. [Kishan Pratap Singh] designed a clever solution in AirSense, an ESP32-powered air filter. If you’re thinking …read more
Open Source Vacuum Avoids Cloud
https://hackaday.com/2026/07/21/open-source-vacuum-avoids-cloud/
Published: July 22, 2026 02:00
As more and more of the technology that we paid for turns becomes a subscription, there’s slowly been a momentum shift in the open source world of building replacements for …read more
Who’s Building that Data Center?
https://hackaday.com/2026/07/21/whos-building-that-data-center/
Published: July 21, 2026 23:00
One of the biggest “David versus Goliath” stories in tech right now is the towns beset by AI data center projects they may or may not have asked for. Powered …read more
Counterfeit Retro Mainboards with Fake AGP Slots Are a Thing
https://hackaday.com/2026/07/21/counterfeit-retro-mainboards-with-fake-agp-slots-are-a-thing/
Published: July 21, 2026 20:00
Sometimes that retro gaming itch strikes, and you just have to source components for a Pentium 4 build, like [Computer Retro Bus] did recently. Unfortunately, along the way he learned …read more
Neural Net Reads the Gas Meter
https://hackaday.com/2026/07/21/neural-net-reads-the-gas-meter/
Published: July 21, 2026 18:30
In an ideal world, the role of technology would be to make all of our lives easier. And although all the ads suddenly appearing in our smart TVs and gaming …read more
Postal IRCs are Almost a Thing of the Past
https://hackaday.com/2026/07/21/postal-ircs-are-almost-a-thing-of-the-past/
Published: July 21, 2026 17:00
Have you ever found out that something you remember from your youth is now gone, and you didn’t even notice? If you are a certain age, you might feel that …read more
Tired of xargs?
https://hackaday.com/2026/07/21/tired-of-xargs/
Published: July 21, 2026 15:30
What if you want to do something in Linux for a lot of files? [Numerator] was tired of using xarg and other ways to handle this job and created bashumerate. …read more
Giving Resin 3D Printers Another Shot After Six Years
https://hackaday.com/2026/07/21/giving-resin-3d-printers-another-shot-after-six-years/
Published: July 21, 2026 14:00
My initial experience with a 3D printer came in 2020, when I got access to a buddy’s Creality LD-002R SLA printer. This was one of those awkward transition phases for …read more
Java Ring Restored After Nearly 30 Years
https://hackaday.com/2026/07/21/java-ring-restored-after-nearly-30-years/
Published: July 21, 2026 11:00
Back in the late 90s when absolutely everybody knew that Java was going to become the one programming language to rule them all, the Java Ring was handed out to …read more
20 FPS on E-Paper Display Without Help
https://hackaday.com/2026/07/21/20-fps-on-e-paper-display-without-help/
Published: July 21, 2026 08:00
If electronic paper displays have one downside, it’s generally refresh rate. Earlier versions of the tech might only have been able to do single-digit frames per second, while modern, mid-range …read more
Google Maps Killed the Restaurant Star
https://hackaday.com/2026/07/20/google-maps-killed-the-restaurant-star/
Published: July 21, 2026 05:00
We all know that Google and other big players pick and choose what information people see, but we sometimes overlook it outside of the search and social media space. [Lauren …read more
Detection of a Four-Carbon Sugar in Interstellar Space
https://hackaday.com/2026/07/20/detection-of-a-four-carbon-sugar-in-interstellar-space/
Published: July 21, 2026 02:00
Although life tends to find a way, something first has to kickstart said lifeforms. Exactly how the first biological cells formed on Earth – and potentially on other worlds – …read more
Sail Virtually Aboard the “Itanic” with IA-64 Emulator
https://hackaday.com/2026/07/20/sail-virtually-aboard-the-itanic-with-ia-64-emulator/
Published: July 20, 2026 23:00
Intel’s Itanium architecture was an interesting experiment, but it has gone down in history as one of the chip giant’s bigger flops, so much so that it earned the name …read more
Echolocation for Drones
https://hackaday.com/2026/07/20/echolocation-for-drones/
Published: July 20, 2026 20:00
Bats are remarkable creatures, able to fly at night or inside the confines of caves without light to guide their way. A team of researchers at Worcester Polytechnic Institute (WPI) …read more
A Feature-Rich Drum Machine
https://hackaday.com/2026/07/20/a-feature-rich-drum-machine/
Published: July 20, 2026 18:30
A little over a month ago, we featured a project from [Igor] who built 64 bits of DRAM from scratch using discrete components. Jokes about memory pricing aside, he did …read more
Hackaday Europe 2026: Project Gigapixel
https://hackaday.com/2026/07/20/hackaday-europe-2026-project-gigapixel/
Published: July 20, 2026 17:05
There was once a race to put out cameras with ever higher numbers of megapixels to snare customers eager to take the highest quality digital photos. These days, we know …read more
Old SSDs Find New Life as Game Cartridges
https://hackaday.com/2026/07/20/old-ssds-find-new-life-as-game-cartridges/
Published: July 20, 2026 15:30
Game companies might not like physical media much anymore, but gamers sure do. There’s nothing like pawing over your collection to find what to play, and inserting a cartridge with …read more
Launching Rockets is Hard, Bring them Back is Harder
https://hackaday.com/2026/07/20/launching-rockets-is-hard-bring-them-back-is-harder/
Published: July 20, 2026 14:00
Since the first V2 rocket sailed above the Kármán line back in 1944 and right up until the modern era, the trajectory of most space-bound rockets was more or less …read more
Earth-like LHS 1140b May Feature the First Atmosphere Found on Exoplanet
Published: July 20, 2026 11:00
Finding another planet outside of our solar system that can comfortably be called ‘Earth-like’ is one of those discoveries that — if confirmed — would be a major event. The …read more
Could Reticulum Power a Post-Internet Network?
https://hackaday.com/2026/07/20/could-reticulum-power-a-post-internet-network/
Published: July 20, 2026 08:00
These days, it is easy to think you always have access to the Internet. But some wonder if — in spite of its ARPANET, nuclear-war-planning heritage — you can actually …read more
Seven Ways to Install Magnets Into Your 3D Prints
https://hackaday.com/2026/07/19/seven-ways-to-install-magnets-into-your-3d-prints/
Published: July 20, 2026 05:00
Magnets are awesome, so it’s no wonder we love to add them to our 3D prints. Doing so in a way that will actually last is harder, with thermal creep …read more
Pong-like Cabinet for Classic Dinosaur Jumper
https://hackaday.com/2026/07/19/pong-like-cabinet-for-classic-dinosaur-jumper/
Published: July 20, 2026 02:00
Back when Google ran a functional search engine, there used to be all kinds of quirky, fun antics hidden in their products. From Easter eggs in certain search results, to …read more
Hackaday Links: July 19, 2026
https://hackaday.com/2026/07/19/hackaday-links-july-19-2026/
Published: July 19, 2026 23:00
We’ll start this week off by giving our congratulations to Skyroot Aerospace of India for successfully launching the country’s first privately developed orbital rocket yesterday. The company’s Vikram-1 booster stands …read more
Automated Pressure Advance Using a Bed-Leveling Sensor
https://hackaday.com/2026/07/19/automated-pressure-advance-using-a-bed-leveling-sensor/
Published: July 19, 2026 20:00
One of the most crucial aspects of FDM 3D printing is ensuring sufficient material is extruded. Determining the right flow rate can be done manually, but some printers these days …read more
Recycling Laptops and iMacs Makes PC Building Fun and Affordable Again
Published: July 19, 2026 17:00
Building a PC used to be a fun adventure — what’s the latest, what’s the greatest, what can I afford? Well, that last question seems to have taken over and …read more
Remembering the Zilog Z80 as it Turns Fifty Years Old
https://hackaday.com/2026/07/19/remembering-the-zilog-z80-as-it-turns-fifty-years-old/
Published: July 19, 2026 14:00
Perhaps the saddest thing about the Zilog Z80 is that this humble 8-bit microprocessor wasn’t allowed to live until its 50th birthday. This, fortunately, doesn’t prevent people like [David Oberhollenzer] …read more
QT6 brings BASIC to the Web Browser, or Your Computer
https://hackaday.com/2026/07/19/qt6-brings-basic-to-the-web-browser-or-your-computer/
Published: July 19, 2026 11:00
In the old days, you either swore by BASIC or you swore at it — but just about everybody got their start on the educational language. Nowadays, the kids are …read more
A Pop-Up Truck Camper for Less
https://hackaday.com/2026/07/19/a-pop-up-truck-camper-for-less/
Published: July 19, 2026 08:00
We live in a veritable Cambrian Explosion of camping options, ranging from a tarp on the ground to multi-million dollar RVs. Somewhere around the middle is the pop-up truck camper, …read more
Open-Source Mid-Drive e-Bike Motor Has Lots of Promise, and Hyphens
https://hackaday.com/2026/07/18/open-source-mid-drive-e-bike-motor-has-lots-of-promise-and-hyphens/
Published: July 19, 2026 05:00
[Pedro Neves] has a mid-drive e-bike, but he doesn’t own it — not truly, since he can’t repair the motor unit. For a hacker to be in that position, there …read more
Write 2D and 3D Games in Modern MoonBASIC
https://hackaday.com/2026/07/18/write-2d-and-3d-games-in-modern-moonbasic/
Published: July 19, 2026 02:00
One of the major strengths of the BASIC programming languages has always been their no-fuss setup and rich set of commands for operations that would take considerably more work in …read more
Your AI Ham Radio Buddy
https://hackaday.com/2026/07/18/your-ai-ham-radio-buddy/
Published: July 18, 2026 23:00
AI chatbots are everywhere these days, and they seem to “know” about everything. But while that is a strength, it can sometimes be a weakness because it isn’t laser-focused on …read more
Calculator UI Is More Complex Than You Might Think
https://hackaday.com/2026/07/18/calculator-ui-is-more-complex-than-you-might-think/
Published: July 18, 2026 20:00
Calculators are so ubiquitous and so familiar that they are easy to take for granted in many different ways. [lcamtuf] points out one that has probably never occurred to many …read more
ESP32-driven Roulette Wheel Could Have Used a 555, but That Didn’t have WiFi
Published: July 18, 2026 17:00
Sometimes you see a project and immediately, before going into the details, your mind throws up the old refrain: “coulda used a 555” — well, [Hulk] actually agrees when it …read more
Simple Games from a Simpler Time
https://hackaday.com/2026/07/18/simple-games-from-a-simpler-time/
Published: July 18, 2026 14:00
Modern video games are nothing short of amazing. My son and I were playing through the one of the latest Zeldas, which involve a mix of combat and puzzle-solving that’s …read more
Spidery Drone Goes Near-invisible By Spinning Really, Really Fast
https://hackaday.com/2026/07/18/spidery-drone-goes-near-invisible-by-spinning-really-really-fast/
Published: July 18, 2026 11:00
Researchers demonstrate that something interesting happens when a small drone with a spindly airframe spins at a high speed: it very nearly turns invisible. The spidery device is shown mounted …read more
Cross-Sectioning Crickets with a Femtosecond Laser
https://hackaday.com/2026/07/18/cross-sectioning-crickets-with-a-femtosecond-laser/
Published: July 18, 2026 08:00
Unlike most cutting lasers, femtosecond lasers don’t vaporize materials; rather, they produce such short, intense bursts of light that the affected region is ablated without having the chance to heat …read more
Flex Filament Stuck To Your Build Platform? Reach For The Isopropanol
Published: July 18, 2026 05:00
3D printing has been around long enough that everyone’s heard at least one weird trick regarding 3D prints. [Angus] of [Maker’s Muse] puts a few to the test, and came …read more
Using Solar Air Heating to Dry Clothes
https://hackaday.com/2026/07/17/using-solar-air-heating-to-dry-clothes/
Published: July 18, 2026 02:00
About a month ago, [Greenhill Forge] built a few solar panels to collect energy from the sun. Unlike solar photovoltaics, which turn sunlight directly into electricity, these were designed to …read more
How Octopuses Hacked their Ribosome to Become Smart
https://hackaday.com/2026/07/17/how-octopuses-hacked-their-ribosome-to-become-smart/
Published: July 17, 2026 23:00
A fascinating aspect in evolutionary biology is that of convergent evolution — whereby similar structures and functions evolve independently from each other. The highly advanced nervous system of octopuses is …read more
The BornHack 2026 Cyber Ægg Is A Badge With A Life Afterwards
https://hackaday.com/2026/07/17/the-bornhack-2026-cyber-aegg-is-a-badge-with-a-life-afterwards/
Published: July 17, 2026 20:00
A problem facing the designers of event badges is this: what happens to the badge after the event? It’s one that designers have tried to solve in many ways with …read more
Hackaday Podcast Episode 378: C Coders, Ceramic Printers, and Shadow Archives
Published: July 17, 2026 16:58
It’s a hot one at both microphones, as Elliot Williams and Kristina Panos wilt in the heat with ice lollies and freezer packs. But still, we persevered long enough to …read more
MacSurf Hits 2.0 To Bring PowerPCs back Online
https://hackaday.com/2026/07/17/macsurf-hits-2-0-to-bring-powerpcs-back-online/
Published: July 17, 2026 15:30
There’s an interesting thing about retrocomputing — the moment that you realize your 25-year-old machine can do almost everything your average person uses a computer for. The problem is that the …read more