Flipper Zero Transmits APRS With No Extra Parts APRs is an amateur radio protocol allowing the exchange of short packets of data. It’s commonly used to transmit a GPS position, though it can find other applications. The Flipper …read more

Flipper Zero Transmits APRS With No Extra Parts

Why Some S3 Videocards Have a Brightness Issue Once a pioneer in videocards, S3’s legacy is today mostly found in details like texture compression as well as the strong presence of S3-branded videocards in the retro-computing world. There’s …read more

Why Some S3 Videocards Have a Brightness Issue

Growing Aluminium-Copper Alloy Crystals Using Hydrogen Having molten aluminium interact with atmospheric water forms a source of hydrogen which can be rather problematic if you’re trying to cast aluminium parts. As the molten metal cools down, …read more

Growing Aluminium-Copper Alloy Crystals Using Hydrogen

Making the Most Pick-Proof Lock Yet Throughout the centuries the art of lock-making and lock-picking have been trapped in a constant struggle, with basic lock designs being replaced by ever more complex ones that seek to …read more

Making the Most Pick-Proof Lock Yet

Vintage Chyron TV Hardware? Of course It Runs NetBSD Perhaps at this point, getting NetBSD running on an obscure piece of hardware is a dog-bites-man story, and not worth reporting– their motto, after all, is “Of course it runs …read more

Vintage Chyron TV Hardware? Of course It Runs NetBSD

2026 Green Power Challenge: NFC Powers Command Write and Wake of MCU One of the more interesting categories of our ongoing Green Power Challenge is “anything but PV” — and since the radiated power of Near Field Communication is decidedly not photovoltaic, …read more

2026 Green Power Challenge: NFC Powers Command Write and Wake of MCU

DIY Weather Stations Report In From Chernobyl You’re probably not going to hang out around Chernobyl any time soon. Still, knowing the conditions there can both satisfy your curiosity and provide scientific value. To that end, [Yury …read more

DIY Weather Stations Report In From Chernobyl

Flash Joule Heating Recovers The Good Stuff Rare earth materials are a hot button topic these days. They’re important for everything from electric vehicles to defence hardware, they’re valuable, and everyone wishes they had some to dig …read more

Flash Joule Heating Recovers The Good Stuff

DIY Nuclear Battery with PV Cells and Tritium Nuclear batteries are pretty simple devices that are conceptually rather similar to photovoltaic (PV) solar, just using the radiation from a radioisotope rather than solar radiation. It’s also possible to …read more

DIY Nuclear Battery with PV Cells and Tritium

Quirky Electric Car Rides the Rails We wouldn’t be surprised if you’d never seen the Spira before. The lightweight three-wheel vehicle is closer to a go-kart than a traditional car, and that’s before you even get …read more

Quirky Electric Car Rides the Rails

Hackaday Links: April 19, 2026 We’ll start things off this week with a story that’s developing more than 25 billion kilometers from Earth — on Friday, NASA announced that the command had been sent to …read more

Hackaday Links: April 19, 2026

2026 Green Powered Challenge: The Eternal Headphones Noise cancelling headphones are a great way to insulate yourself from the bustle of the city, but due to their power requirements, continuous use means frequent recharging. [Alessandro Sgarzi] has …read more

2026 Green Powered Challenge: The Eternal Headphones

Rack Cage Generator Gets Your Gear Mounted Sometimes, as hackers and makers, we can end up with messy lashed-together gear that is neither reliable nor tidy. Rackmounting your stuff can be a great way to improve the …read more

Rack Cage Generator Gets Your Gear Mounted

DIY UPS Keeps Home Assistant Running If you put a bunch of computers in charge of your house, it’s generally desirable to ensure their up-time is as close to 100% as possible. An uninterruptible power supply …read more

DIY UPS Keeps Home Assistant Running

Can Claude Write Z80 Assembly Code? Betteridge’s law applies, but with help and guidance by a human who knows his stuff, [Ready Z80] was able to get a functioning game of Wordle out of the French-named …read more

Can Claude Write Z80 Assembly Code?

How One Line of TF2 Code Ruined This Simple Feature Ever encountered a minor annoying bug in a video game? How about one dating back to 2018? Usually, you have no hope of fixing it, but this time is different. …read more

How One Line of TF2 Code Ruined This Simple Feature

What Can You Run on a 1960s Univac? Anything You’re Willing To Wait For! There are two UNIVAC 1219B computers that have survived since the 1960s and one of them is even operational. [Nathan Farlow] wanted to run a Minecraft server on it, so …read more

What Can You Run on a 1960s Univac? Anything You’re Willing To Wait For!

Tool Embodiment and the Dead Trackball There is a currently ongoing debate in the neuropsychology world about how we relate to the tools that we use. The theory of “tool embodiment” says that when we use …read more

Tool Embodiment and the Dead Trackball

Electric Wind-Up Plane Uses Supercapacitors For Free Flight Fun There’s something to be said for a simple wind-up, free flight model airplane. With no controls, it must be built very well to fly well, and with only the limited …read more

Electric Wind-Up Plane Uses Supercapacitors For Free Flight Fun

Fixing a GameCube’s Dodgy Optical Drive With Fresh Capacitors Generally when a game console with an optical drive stops reading discs the first thing that people do is crank on the potentiometer that controls the power to the laser …read more

Fixing a GameCube’s Dodgy Optical Drive With Fresh Capacitors

FRED Comes to Hobby Operating Systems (and Linux) Those who have worked on a hobby operating system for x86 will have interacted with its rather complex and confusing interrupt model. [Evalyn] shows us why and how to use …read more

FRED Comes to Hobby Operating Systems (and Linux)

Making a Bronze Mirror From Scratch Although modern-day silvered glass mirrors have pretty much destroyed the market for bronze mirrors, these highly polished pieces of metal once were the pinnacle of mirror technology. Due to the …read more

Making a Bronze Mirror From Scratch

Cooking With Plasma (Not Fire) Cooking food with fire is arguably the technology that propelled humans to become the dominant species on Earth. It’s pretty straightforward to achieve, just requiring a fuel source, a supply …read more

Cooking With Plasma (Not Fire)

Hackaday Podcast Episode 366: DOOM on a Toaster, Music in LED Strips, and Old Drives in New Clothes It’s the evening before publication, and a pair of Hackaday writers convene to record the week’s podcast. This week Elliot Williams is joined by Jenny List, and it’s a bumper …read more

Hackaday Podcast Episode 366: DOOM on a Toaster, Music in LED Strips, and Old Drives in New Clothes

Wearable Circuit Sculpture Is One Smart Bracelet Well, this might just be a Hackaday first. Certainly not the circuit sculpture part, nor the wearable aspect, but the glorious combination of the two. Behold [CMoz]’s Fashionably on Task: …read more

Wearable Circuit Sculpture Is One Smart Bracelet

This Week in Security: Docker Auth, Windows Tools, and a Very Full Patch Tuesday CVE-2026-34040 lets attackers bypass some Docker authentication plugins by allowing an empty request body. Present since 2024, this bug was caused by a previous fix to the auth workflow. In …read more

This Week in Security: Docker Auth, Windows Tools, and a Very Full Patch Tuesday

Microsoft Finally Ups FAT32 Size Limit You probably don’t spend a lot of time using the FAT32 file system anymore, since it’s thoroughly been superseded many times over. Even so, Microsoft has seen fit to deliver …read more

Microsoft Finally Ups FAT32 Size Limit

Building a Big RC Mini Truck Kei trucks are some of the smallest commercial vehicles out on the roads today. You can also get lots of cute kei RC cars if you’re into the toy side …read more

Building a Big RC Mini Truck

Comparing 12 VDC Air Fryers with Regular 240 VAC Ones That boiling water is a contentious topic of discussion is clear, but what about hot air? When you take a 12 VDC, 280 Watt-rated air fryer and pit it against …read more

Comparing 12 VDC Air Fryers with Regular 240 VAC Ones

Do We Really Need Another Development Board? It’s fair to say that there are a lot of development board form factors for MCUs, with [Tech Dregs] over on yonder YouTube on the verge of adding another one …read more

Do We Really Need Another Development Board?