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Posts by Hackaday

Electric Truck Sets Racing Record The 24 Hours of Le Mans races is an extremely prestigious endurance motorsport event which attracts the best cars and drivers from around the world. It’s one of the longest-running …read more

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They Weren’t Joking: Gentoo WAS ported to GNU Hurd Long ago, in the aftermath of the UNIX wars, three kernels emerged from the rubble: BSD, Linux, and Hurd. BSD, being UNIX, was held back by legal wrangling in the …read more

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Your Own Tool Changer All the cool new 3D printers have tool-changing heads. Instead of multiplexing filament through one hot end, you simply park one hot end and pick up another. Or pick up …read more

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ESP32 Weather Display Runs Macintosh System 3 It seems like everybody takes their turn doing an ESP32-based weather display, and why not? They’re cheap, they’re easy, and you need to start somewhere. With the Cheap Yellow Display …read more

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Reverse-Engineering Human Cognition and Decision Making in a Modern Age Cognitive processes are not something that we generally pay much attention to until something goes wrong, but they cover the entire scope of us ingesting sensory information, the processing and …read more

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From Lunar Dust to Breathable Air Moon missions are hot again for the first bit since the space race. While the previous period had us land on the big lunar rock, the missions of tomorrow have …read more

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Skylab Under the Ocean A crew lives on a station in a hostile environment. Leaving that environment requires oxygen tanks and specialized gear to deal with pressure differentials. A space station? Nah. A base …read more

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Reverse-Engineering an Amazon Blink Gen 3 Camera After some water intrusion apparently killed one of [electronupdate]’s Amazon Blink Gen 3 cameras he took this opportunity to do a full teardown and analysis of all the major components. …read more

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3D-Printed Parts Nearly Sink RC Submarine Of all the remote-control vehicles one can build, a submarine is possibly the hardest: if something goes wrong with almost any other vehicle, it’s easy to recover and repair, but …read more

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We’re All Abuzz About the Bee Write Back Writerdeck Friends, there will likely come a time in your life when you have trouble sleeping. When this happens, it may behoove you to do some writing, any kind of writing. …read more

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Trying to Install Haiku on a 2009 Mac Mini Although the number of uses for a 2009-era Mac Mini aren’t very long, using them to run new-and-upcoming operating systems like Haiku on would seem to be an interesting use …read more

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Hackaday Links: April 12, 2026 At this point, we’ll assume you already know that four humans took a sightseeing trip around the Moon and made their triumphant return to Earth on Friday. Even if you …read more

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Who had “New OS for the Z80” On Their 2026 Bingo Card? Some might say the venerable Z80 doesn’t need another operating system, but [Scott Baker] obviously disagrees. He has come up with a brand new, from scratch OS called NostOS for …read more

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The Complex Transformations Underlying MC Escher’s Works Self-similar images are rather common, which are images in which the same image is repeated on a smaller scale somewhere within the image that one is looking at, something which …read more

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Green Powered Challenge: Solar Powered Pi Hosts Websites in RAM If you started with computers early enough, you’ll remember the importance of the RAMdisk concept: without a hard drive and with floppies slow and swapping constantly, everything had to live …read more

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Making the Forgotten 1982 Game Adventure Canoe run on MAME A while back [Jack] came across a Taito arcade game that neither he nor any of his mates recognized. The game was Adventure Canoe and part of the collection of …read more

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Passive Radar Explained It is an old trope in submarine movies. A sonar operator strains to hear things in the ocean but dares not “ping” for fear of giving away the boat’s location. …read more

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Testing Refrigerants and Capillary Tubes to Find Peak Performance Although vapor-compression refrigeration is a simple concept, there are still a lot of details in the implementation of such a system that determines exactly how efficient it is. After making …read more

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Kiki is the Unknown Array Language Kiki bills itself as the “array programming system of unknown origin.” We thought it reminded us of APL which, all by itself, isn’t a bad thing. The announcement post is …read more

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A Suction-Driven Seven-Segment Display There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, vacuum tubes, and transistors being some well-known examples. In a smaller way, …read more

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Implementing PCIe over Fiber Using SFP Modules Although we can already buy commercial transceiver solutions that allow us to use PCIe devices like GPUs outside of a PC, these use an encapsulating protocol like Thunderbolt rather than …read more

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Authenticate SSH with Your TPM You probably don’t think about it much, but your PC probably has a TPM or Trusted Platform Module. Windows 11 requires one, and most often, it stores keys to validate …read more

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What’s Your Favorite Kind of Hack? Talking with [Tom Nardi] on the podcast this week, he mentioned his favorite kind of hack: the community-developed open-source firmware that can be flashed into a commercial product that has …read more

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Rust-y Firmware for Waveshare Smartwatch Waveshare makes a nifty little ESP32-S3 based smartwatch product, but its firmware is apparently not to everyone’s liking. Specifically, it’s not to [infiniton] a.k.a [Bright_Warning_8406]’s liking, as they rewrote the …read more

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Digging Into the Twilight Hack that Brought Us Wii Homebrew With each new game console, there’s an effort to get around whatever restrictions exist to run your own software on it. In the case of the Nintendo Wii, the system …read more

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A Mercury Rover Could Explore the Planet by Sticking to the Terminator With multiple rovers currently scurrying around on the surface of Mars to continue a decades-long legacy, it can be easy to forget sometimes that repeating this feat on other planets …read more

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Implementing a Rhythm Game entirely in a GPU Shader Most rhythm games have a community creating custom charts, and Trombone Champ is no exception. What is exceptional, however, [CraftedCart]’s osu! played in a Trombone Champ chart. It all started …read more

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Battle Born Explains How Its Battery Thermal Safety Works After users of Battle Born LFP batteries encountered issues such as a heavily discolored positive terminal and other signs of overheating, multiple autopsies showed that the cause appeared to be …read more

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Using Metal Screws in Plastic Parts Machine screws aren’t made for wood or sheet metal, they make specific screws for those applications. You probably also know there are special screws for plastic. But did you know …read more

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Hackaday Podcast Episode 365: Early 3DP Engineering, a New CAD Interface, and Flying Around the Moon Humans flew around the Moon this week, but Hackaday Editors Elliot Williams and Tom Nardi were stuck on Earth — luckily, there was no shortage of stories and hacks to …read more

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