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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2025/06/05/leakage-control-for-coupled-coils/ | Leakage Control For Coupled Coils | Heidi Ulrich | [
"how-to",
"Parts"
] | [
"coil",
"coupled",
"inductor",
"leakage",
"magnetic",
"math",
"model"
] | Think of a circuit model that lets you move magnetic leakage around like sliders on a synth, without changing the external behavior of your coupled inductors. [Sam Ben-Yaakov] walks you through just that in
his video ‘Versatile Coupled Inductor Circuit Model and Examples of Its Use’
.
The core idea is as follows. Coupl... | 3 | 2 | [
{
"comment_id": "8135754",
"author": "Ali",
"timestamp": "2025-06-05T20:18:26",
"content": "Doing math may take literal weeks. Redesigning a circuit to fix the problem will usually take 1 or 2 hours with a soldering iron and a scope. If it’s not done for a hobby I don’t see it as viable option – tha... | 1,760,371,524.13922 | ||
https://hackaday.com/2025/06/05/supercon-2024-from-consultant-to-prototyper-on-a-shoestring-budget/ | Supercon 2024: From Consultant To Prototyper On A Shoestring Budget | Lewin Day | [
"cons",
"Hackaday Columns",
"Slider"
] | [
"2024 Hackaday Superconference",
"consultancy",
"prototyping",
"shoes",
"Supercon 2024",
"talk"
] | Many engineers graduate from their studies and head out into the workforce, seeking a paycheck and a project at some existing company or other. Often, it’s not long before an experienced engineer begins to contemplate striking out on their own, working as a skilled gun-for-hire that makes their own money and their own ... | 10 | 3 | [
{
"comment_id": "8135710",
"author": "echodelta",
"timestamp": "2025-06-05T17:35:26",
"content": "Boots, stiff?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8135726",
"author": "HaHa",
"timestamp": "2025-06-05T19:08:37",
"content": "This should b... | 1,760,371,524.431471 | ||
https://hackaday.com/2025/06/05/a-steady-vacuum-for-the-fastest-cassette-tape-drive-ever/ | A Steady Vacuum For The Fastest Cassette Tape Drive Ever | Jenny List | [
"classic hacks",
"hardware"
] | [
"cassette tape",
"tape drive",
"vacuum"
] | If you think of a 1960s mainframe computer, it’s likely that your mental image includes alongside the cabinets with the blinkenlights, a row of reel-to-reel tape drives. These refrigerator-sized units had a superficial resemblance to an audio tape deck, but with the tape hanging down in a loop either side of the head a... | 39 | 15 | [
{
"comment_id": "8135670",
"author": "threeve",
"timestamp": "2025-06-05T15:39:22",
"content": "Youtube has its downs, but it’s great to see a silly project like this one come along every once in a while.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8135678"... | 1,760,371,524.270909 | ||
https://hackaday.com/2025/06/05/screens-of-death-from-diagnostic-aids-to-a-sad-emoji/ | Screens Of Death: From Diagnostic Aids To A Sad Emoji | Maya Posch | [
"Featured",
"History",
"Original Art",
"Slider",
"Software Development"
] | [
"bsod"
] | There comes a moment in the life of any operating system when an unforeseen event will tragically cut its uptime short. Whether it’s a sloppily written driver, a bug in the handling of an edge case or just dumb luck, suddenly there is nothing more that the OS’ kernel can do to salvage the situation. With its last few c... | 57 | 15 | [
{
"comment_id": "8135647",
"author": "M",
"timestamp": "2025-06-05T14:09:28",
"content": "Would be remiss without mentioning linux’s new BSOD, which displays nothing but an incomprehensible QR code, with no indication that there was a problem, what it was (not even an unhelpful “DRIVE IRQ NOT LESS O... | 1,760,371,524.788388 | ||
https://hackaday.com/2025/06/06/a-network-status-panel-the-way-it-should-be/ | A Network Status Panel The Way It Should Be | Jenny List | [
"LED Hacks",
"Network Hacks"
] | [
"pi pico",
"status panel"
] | Sometimes a project forms itself around a component rather than an idea, and thus it was that [Maximilien] found himself building
a data rate monitor for the connection between two data centers
. Some MD0657C2-R LED dot matrix displays for not a lot needed a project.
The displays are mounted in groups of four on small ... | 16 | 10 | [
{
"comment_id": "8136048",
"author": "Hirudinea",
"timestamp": "2025-06-06T19:32:22",
"content": "Gives me a WarGames vibe, it’s a real WOPR.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8136052",
"author": "Paul",
"timestamp": "2025-06-06T19:44:01",... | 1,760,371,524.320794 | ||
https://hackaday.com/2025/06/06/hackaday-podcast-episode-324-ribbon-microphone-from-a-gumstick-texture-from-a-virtual-log-and-a-robot-arm-from-pvc/ | Hackaday Podcast Episode 324: Ribbon Microphone From A Gumstick, Texture From A Virtual Log, And A Robot Arm From PVC | Kristina Panos | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | This week, Hackaday’s Elliot Williams and Kristina Panos joined forces to bring you the latest news, mystery sound, and of course, a big bunch of hacks from the previous week.
In Hackaday news,
the 2025 Pet Hacks Contest
rolls on, but only for a short time longer. You have until Tuesday, June 10th to show us what you’v... | 5 | 4 | [
{
"comment_id": "8136051",
"author": "a_do_z",
"timestamp": "2025-06-06T19:39:34",
"content": "For a second there I thought I must have forgotten that I came in here and posted this. :-)So now I’ll just post: me too.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_... | 1,760,371,524.378753 | ||
https://hackaday.com/2025/06/06/solder-stencil-done-three-ways/ | Solder Stencil Done Three Ways | Matt Varian | [
"PCB Hacks"
] | [
"fiber laser",
"laser cutter",
"solder stencil",
"vinyl cutter"
] | This project, sent in by [Henk], goes through a few
different ways to make a solder stencil
using a vinyl cutter, a CO2 laser, and a fiber laser.
The project starts with identifying a method to convert the board’s Gerber files to a PNG, which is ultimately used to create a vector file for use with the laser. The first ... | 29 | 11 | [
{
"comment_id": "8136001",
"author": "Cyna",
"timestamp": "2025-06-06T15:45:26",
"content": "Or just have JLC make it as well for $7 extra…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8136002",
"author": "Matt",
"timestamp": "2025-06-06T15... | 1,760,371,524.687709 | ||
https://hackaday.com/2025/06/06/this-week-in-security-roundcube-unified-threat-naming-and-ai-chat-logs/ | This Week In Security: Roundcube, Unified Threat Naming, And AI Chat Logs | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"ai",
"CVEs",
"This Week in Security"
] | Up first, if you’re running a Roundcube install prior to 1.5.10 or 1.6.11,
it’s time to update
. We have
an authenticated Remote Code Execution (RCE) in the Roundcube Webmail client
. And while that’s not quite the level of chaos that an unauthenticated RCE would cause, it’s still to be taken seriously. Mainly because ... | 4 | 4 | [
{
"comment_id": "8136016",
"author": "Ostracus",
"timestamp": "2025-06-06T17:02:55",
"content": "Sounds like they need better paywalls. Unify under one SSO, and send all paying customers a cheap security key. Double bonus if it doubles as adult verification for those kinds of sites.",
"parent_id... | 1,760,371,524.620211 | ||
https://hackaday.com/2025/06/06/in-film-whats-old-may-still-be-new-again/ | In Film, What’s Old May Still Be New Again | Jenny List | [
"classic hacks"
] | [
"edwin land",
"instant film",
"kodachrome",
"land camera",
"polaroid"
] | We recently published an affectionate look at a Polaroid Land camera, whose peel-apart instant film is long out of production except for a very few single exposure packs form a boutique manufacturer. All that was left was a discussion of modifying it for conventional roll film, or perhaps hacking a modern back-to-front... | 15 | 7 | [
{
"comment_id": "8135962",
"author": "limroh",
"timestamp": "2025-06-06T12:01:02",
"content": "Oh come on! Now you’re just baiting us with the still visible bitting of your car key. ;-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8136023",
"author... | 1,760,371,524.57682 | ||
https://hackaday.com/2025/06/06/soviet-calculator-teardown-reveals-similarities-and-differences/ | Soviet Calculator Teardown Reveals Similarities And Differences | Lewin Day | [
"Teardown"
] | [
"calculator",
"soviet",
"teardown",
"vfd"
] | Tearing down hardware from different parts of the world can be revealing, showing unique parts, techniques, and tricks employed by engineers living in a very different world from our own. To that end, [msylvain59] has been kind enough to give us a look inside
the Elektronika MK-26—a calculator built in the former Sovie... | 12 | 5 | [
{
"comment_id": "8135933",
"author": "Nikolai",
"timestamp": "2025-06-06T08:54:00",
"content": "Back then it was great and expensive. My first calculator was Electronica MK-85. It was great and made very well. It did cost my mom her monthly salary.https://elektronika.su/en/calculators/elektronika-mk... | 1,760,371,524.193116 | ||
https://hackaday.com/2025/06/05/spacedeck-is-half-cyberdeck-half-phone-case-all-style/ | SPACEdeck Is Half Cyberdeck, Half Phone Case, All Style | Tyler August | [
"Android Hacks",
"Cyberdecks"
] | [
"3d print",
"android",
"cyberdeck"
] | It’s been at least a few hours since Hackaday last featured a cyberdeck, so to avoid the specter of withdrawal, we present you with [Sp4m]’s
SPACEdeck, a stylish phone-based cyberdeck
!
The SPACEdeck takes a Samsung Galaxy S24 and puts it into a handsome clamshell case with a wireless keyboard, turning the phone into a... | 17 | 7 | [
{
"comment_id": "8135906",
"author": "Ian",
"timestamp": "2025-06-06T07:41:16",
"content": "There have been exactly 3 actual cyberdecks since January 2023 posted on HaD, and 2 of them were steamdecks.Pick a new word.That one is taken and doesn’t mean what you keep using it for.",
"parent_id": nu... | 1,760,371,524.89025 | ||
https://hackaday.com/2025/06/05/piko-your-esp32-powered-fitness-buddy/ | Piko, Your ESP32 Powered Fitness Buddy | John Elliot V | [
"hardware",
"Wearable Hacks"
] | [
"accelerometer",
"ESP32",
"exercise",
"fitness",
"smartwatch",
"step counter",
"tamagotchi"
] | Over on Hackaday.io there’s a fun and playful write-up for a fun and playful project — the Piko, an
ESP32 powered smartwatch
.
Our hackers [Iloke Alusala], [Lulama Lingela], and [Rafael Cardoso] teamed up to design and manufacture this wrist-worn fitness wearable. Made from an ESP32 Beetle C6 and using an attached acce... | 3 | 3 | [
{
"comment_id": "8135576",
"author": "Maria",
"timestamp": "2025-06-05T11:51:29",
"content": "If paired with a powerfull enough servomotor, I could see this being used as hands-free gesture control for toilet flushing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_... | 1,760,371,524.831039 | ||
https://hackaday.com/2025/06/05/running-freedos-and-8086tiny-on-the-game-boy-advance-because-you-can/ | Running FreeDOS And 8086tiny On The Game Boy Advance Because You Can | Maya Posch | [
"handhelds hacks",
"Nintendo Game Boy Hacks"
] | [
"8086",
"freedos",
"game boy advance"
] | How many people haven’t looked at their Game Boy Advance (GBA) handheld gaming device and wondered how much better it might be if it could run FreeDOS. Inside an 8086 emulator. If you’re like [ZZAZZ] and similarly suffer intrusive project-related thoughts, then
this might be a moment of clear recognition
, somewhat lik... | 21 | 3 | [
{
"comment_id": "8135562",
"author": "Albert",
"timestamp": "2025-06-05T10:36:21",
"content": "Actually, Z80 GameBoy CPU is a distant cousin of early X86 so it should be possible to binary translate MS-DOS on the fly and get it to run at full speed.",
"parent_id": null,
"depth": 1,
"repl... | 1,760,371,525.413194 | ||
https://hackaday.com/2025/06/04/passive-saturation-box-is-a-cheap-way-to-distort-your-sound/ | Passive Saturation Box Is A Cheap Way To Distort Your Sound | Lewin Day | [
"Musical Hacks"
] | [
"audio",
"diodes",
"saturation"
] | Distortion pedals and overdrive effects usually have a bunch of lovely transistors or op-amps inside and lots of knobs and dials to tweak the sound to your personal taste. However, it’s possible to get some crunchiness in your audio signal without all that fuss,
as [Simon Hutchinson] demonstrates with his $2 “analog sa... | 10 | 8 | [
{
"comment_id": "8135519",
"author": "exponential component",
"timestamp": "2025-06-05T06:53:37",
"content": "Diodes are passive since they don’t require functioning energy, but yes they’re not linear",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8135540",
... | 1,760,371,525.272322 | ||
https://hackaday.com/2025/06/04/slide-rule-by-helix/ | Slide Rule By Helix | Al Williams | [
"3d Printer hacks",
"Retrocomputing"
] | [
"calculation",
"slide rule"
] | It is no secret that we like slide rules around the Hackaday bunker, and among our favorites are the cylindrical slide rules. [Chris Staecker] likes them, too, and recently even 3D printed a version. But spurred by comments on his video, he decided to try something that might be unique:
a helical slide rule
. You can s... | 0 | 0 | [] | 1,760,371,525.347049 | ||
https://hackaday.com/2025/06/04/making-solder-wick-less-painful/ | Making Solder Wick Less Painful | Aaron Beckendorf | [
"how-to"
] | [
"desoldering",
"desoldering braid",
"wick"
] | For some people (e.g. this author) solder wick is a tool of last resort. Unfortunately, solder suckers and vacuum pumps lose most of their utility when you move from through-hole to SMD components, forcing us to use the dreaded wick. For those of us in this mindset, [nanofix]’s
recent video
which we’ve placed below the... | 28 | 12 | [
{
"comment_id": "8135362",
"author": "RetepV",
"timestamp": "2025-06-04T20:10:33",
"content": "I’ve been hesitating to replace my solder-sucker with a real vacuum pump for so long, that now I don’t need either of them anymore because everything is SMD. :DNaaa, not really true. I like to work on vint... | 1,760,371,525.473364 | ||
https://hackaday.com/2025/06/04/adding-assistive-technology-to-a-doorbell/ | Adding Assistive Technology To A Doorbell | Bryan Cockfield | [
"ATtiny Hacks",
"home hacks"
] | [
"adaptive technology",
"attiny412",
"doorbell",
"logic analyser",
"microcontroller"
] | The advent of affordable computing over the last few decades has certainly been a boon for many people with disabilities, making it easier to access things like text-to-speech technology, automation, or mobility devices, and even going as far as making it easier to work in general by making remote work possible. Some t... | 4 | 2 | [
{
"comment_id": "8135394",
"author": "Oliver",
"timestamp": "2025-06-04T21:11:56",
"content": "Started going down that rabbithole witch resulted in https:://gitlab.com//olliver/ochime which close to getting finished. Keep on having space-claim issues though :(",
"parent_id": null,
"depth": 1... | 1,760,371,525.227945 | ||
https://hackaday.com/2025/06/04/floss-weekly-episode-835-board-member-b/ | FLOSS Weekly Episode 835: Board Member B | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"FLOSS Weekly",
"kde",
"linux"
] | This week
Jonathan
and
Rob
chat with Nate Graham about KDE! Why did Nate walk away from Apple, and how did he find Linux and KDE? And what does he see coming next? Watch to find out!
https://invent.kde.org/ngraham
https://pointieststick.com
https://techpaladinsoftware.com
Did you know you can watch the live recording o... | 2 | 2 | [
{
"comment_id": "8135391",
"author": "Eliot",
"timestamp": "2025-06-04T21:08:10",
"content": "Explaining to my children that the header image is a reference to a 20 year old Apple marketing campaign.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8135529",
... | 1,760,371,525.3147 | ||
https://hackaday.com/2025/06/03/building-an-eight-channel-active-mixer/ | Building An Eight Channel Active Mixer | Lewin Day | [
"Musical Hacks"
] | [
"audio mixer",
"mixer",
"op-amp"
] | There are plenty of audio mixers on the market, and the vast majority all look the same. If you wanted something different, or just a nice learning experience, you could craft your own instead.
That’s precisely what [Something Physical] did.
The build was inspired by
an earlier 3-channel mixer designed by [Moritz Klein... | 29 | 9 | [
{
"comment_id": "8135000",
"author": "I Alone Possess The Truth",
"timestamp": "2025-06-04T00:36:41",
"content": "This is a fun project! The enclosure is beautiful. Meters would be nice; maybe on the next iteration. But if I’m not bitchin’ I’m not breathin’.Again, maybe on a later iteration: sli... | 1,760,371,525.538957 | ||
https://hackaday.com/2025/06/03/open-source-watch-movement-really-ticks-all-the-boxes/ | Open Source Watch Movement Really Ticks All The Boxes | Tyler August | [
"clock hacks"
] | [
"clockwork",
"mechanical clock",
"open source hardware",
"watch"
] | When you think of open-source hardware, you probably think of electronics and maker tools– RepRap, Arduino, Adafruit, et cetera. Yet open source is an ethos and license, and is in no way limited to electronics. The openmovement foundation is a case in point– a watch case, to be specific.
The “movement” in Openmovement ... | 32 | 17 | [
{
"comment_id": "8134915",
"author": "Andrew",
"timestamp": "2025-06-03T20:06:53",
"content": "It is neither “escarpent” or “escarpment”.Also “movment”.Apart from that it’s a fine article.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8134935",
"aut... | 1,760,371,525.604553 | ||
https://hackaday.com/2025/06/03/3d-printed-tank-has-a-cannon-to-boot/ | 3D Printed Tank Has A Cannon To Boot | Lewin Day | [
"Toy Hacks"
] | [
"3D printed parts",
"ESP32",
"radio control",
"rc",
"tank"
] | Few of us will ever find ourselves piloting a full-sized military tank. Instead, you might like to make do with the RC variety. [TRDB] has whipped up one of their own design
which features a small little pellet cannon to boot.
The tank is assembled from 3D printed components — with PETG filament being used for most of ... | 7 | 3 | [
{
"comment_id": "8134893",
"author": "shinsukke",
"timestamp": "2025-06-03T19:13:21",
"content": "The tank toy I wanted all my childhood!!!Beautiful",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8135008",
"author": "TG",
"timestamp": "2025-0... | 1,760,371,525.650146 | ||
https://hackaday.com/2025/06/03/supercon-2024-how-to-track-down-radio-transmissions/ | Supercon 2024: How To Track Down Radio Transmissions | Lewin Day | [
"cons",
"Hackaday Columns",
"Slider",
"Wireless Hacks"
] | [
"2024 Hackaday Superconference",
"radio",
"radio transmitter",
"transmitter"
] | You turn the dial on your radio, and hear a powerful source of interference crackle in over the baseline noise. You’re interested as to where it might be coming from. You’re receiving it well, and the signal strength is strong, but is that because it’s close or just particularly powerful? What could it be? How would yo... | 10 | 6 | [
{
"comment_id": "8134913",
"author": "Gösta",
"timestamp": "2025-06-03T20:04:49",
"content": "Great article!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8135009",
"author": "TG",
"timestamp": "2025-06-04T01:03:18",
"content": "Do they not call i... | 1,760,371,525.795755 | ||
https://hackaday.com/2025/06/03/simulation-and-motion-planning-for-6dof-robotic-arm/ | Simulation And Motion Planning For 6DOF Robotic Arm | John Elliot V | [
"hardware",
"Robots Hacks"
] | [
"6dof",
"python",
"raspberry pi",
"robotic arm"
] | [Leo Goldstien] recently got in touch to
let us know about a fascinating update he posted
on the
Hackaday.io page for ManiPylator
— his 3D printed Six degrees of freedom, or 6DOF robotic arm.
This latest installment gives us a glimpse at what’s involved for command and control of such a device, as what goes into simula... | 11 | 5 | [
{
"comment_id": "8134828",
"author": "HaHa",
"timestamp": "2025-06-03T16:09:31",
"content": "…must not make fleshlight joke…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8134865",
"author": "X-MarX-THX-SpXt",
"timestamp": "2025-06-03T17:34:... | 1,760,371,525.930173 | ||
https://hackaday.com/2025/06/03/my-winter-of-99-the-year-of-the-linux-desktop-is-always-next-year/ | My Winter Of ’99: The Year Of The Linux Desktop Is Always Next Year | Maya Posch | [
"Featured",
"Linux Hacks",
"Rants",
"Slider"
] | [
"desktop os",
"linux",
"operating system",
"windows"
] | Growing up as a kid in the 1990s was an almost magical time. We had the best game consoles, increasingly faster computers at a pace not seen before, the rise of the Internet and World Wide Web, as well the best fashion and styles possible between neon and pastel colors, translucent plastic and also this little thing ca... | 231 | 44 | [
{
"comment_id": "8134785",
"author": "Dave Boyer",
"timestamp": "2025-06-03T14:16:27",
"content": "I had a stable branch Ubuntu installed on a second SSD, kept almost unused but ready for those tasks where MSYS2 or VirtualBox would not be enough. One day, aftersudo apt dist-upgradeit refused to boot... | 1,760,371,527.058688 | ||
https://hackaday.com/2025/06/03/add-wood-grain-texture-to-3d-prints-with-a-model-of-a-log/ | Add Wood Grain Texture To 3D Prints – With A Model Of A Log | Donald Papp | [
"3d Printer hacks",
"how-to"
] | [
"3d printed",
"texture",
"wood grain"
] | Adding textures is a great way to experiment with giving 3D prints a different look, and [PandaN] shows off
a method of adding a wood grain effect
in a way that’s easy to play around with. It involves using a 3D model of a log (complete with concentric tree rings) as a print modifier. The good news is that [PandaN] has... | 34 | 11 | [
{
"comment_id": "8134748",
"author": "Luddita",
"timestamp": "2025-06-03T11:51:24",
"content": "I grew up in a Socialist country with terrible laminated furnitures with fake woodgrain. It will always look cheap, fake and sad for me.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,526.122801 | ||
https://hackaday.com/2025/06/04/the-blackberry-keyboard-how-an-open-source-ecosystem-sprouts/ | The Blackberry Keyboard: How An Open-Source Ecosystem Sprouts | Arya Voronova | [
"blackberry hacks",
"Hackaday Columns",
"handhelds hacks",
"Slider"
] | [
"Beepy. BeepBerry",
"blackberry",
"community",
"hackers",
"keyboard",
"open hardware",
"q10",
"q20",
"Sharp Memory LCD",
"SQFMI"
] | What could happen when you open-source a hardware project?
No, seriously. I hold a fair few radical opinions – one is that projects should be open-source to the highest extent possible. I’ve seen this make miracles happen, make hackerdom stronger, and nourish our communities. I think we should be publishing all the pro... | 43 | 8 | [
{
"comment_id": "8135284",
"author": "dan farmer",
"timestamp": "2025-06-04T17:23:03",
"content": "” I even believe bullying people into open-sourcing their projects can be justified”Anything can be justified, but that doesn’t make it right.According to the first hit on google (quoted from wikipedia... | 1,760,371,525.878302 | ||
https://hackaday.com/2025/06/04/a-vintage-scope-comes-back-to-life/ | A Vintage ‘Scope Comes Back To Life | Jenny List | [
"classic hacks",
"Teardown"
] | [
"aeg",
"oscilloscope",
"tubes"
] | We’re suckers for a vintage electronic teardown here at Hackaday, and thus it’s pleasing to see
[Thomas Scherrer OZ2CPU] with a 1962 AEG oscilloscope on his bench
. It’s definitely seen better days, and is a single-trace 10 MHz unit of the type you might have seen in a typical general purpose electronics lab back in th... | 3 | 2 | [
{
"comment_id": "8135477",
"author": "Isaac Wingfield",
"timestamp": "2025-06-05T03:46:04",
"content": "“metallic deposits characteristic of long operation” – more likely the barium “getter”that was vaporized as part of the manufacturing process.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,371,526.047077 | ||
https://hackaday.com/2025/06/04/high-stakes-fox-hunting-the-fccs-radio-intelligence-division-in-world-war-ii/ | High-Stakes Fox Hunting: The FCC’s Radio Intelligence Division In World War II | Dan Maloney | [
"Featured",
"History",
"Original Art",
"Slider",
"Wireless Hacks"
] | [
"counterespionage",
"espionage",
"goniometer",
"history",
"radio intelligence division",
"RDF",
"RID",
"spy",
"spy radio",
"wwii"
] | With few exceptions, amateur radio is a notably sedentary pursuit. Yes, some hams will set up in a national or state park for a “Parks on the Air” activation, and particularly energetic operators may climb a mountain for “Summits on the Air,” but most hams spend a lot of time firmly planted in a comfortable chair, spin... | 32 | 5 | [
{
"comment_id": "8135214",
"author": "BT",
"timestamp": "2025-06-04T14:20:32",
"content": "Gulf of where?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8135222",
"author": "Joseph Eoff",
"timestamp": "2025-06-04T14:34:47",
"content":... | 1,760,371,526.263045 | ||
https://hackaday.com/2025/06/04/tune-in-to-higher-lower-the-minimal-handheld-electronic-game/ | Tune In To “Higher Lower”, The Minimal Handheld Electronic Game | Donald Papp | [
"Arduino Hacks",
"Games"
] | [
"3d printed",
"Arduboy",
"arduino",
"diy",
"handheld",
"kit"
] | [Tommy] has a great write-up about designing and building a minimalistic handheld electronic game called
“Higher Lower”
. It’s an audio-driven game in which the unit plays two tones and asks the player to choose whether the second tone was higher in pitch, or lower. The game relies on 3D printed components and minimal ... | 8 | 4 | [
{
"comment_id": "8135166",
"author": "ford",
"timestamp": "2025-06-04T11:19:44",
"content": "Why not use something like ESP32 and show highscores on a simple webpage?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8135191",
"author": "Shannon",
... | 1,760,371,526.313861 | ||
https://hackaday.com/2025/06/04/3d-printing-a-modular-guitar-means-it-can-look-like-whatever-you-want/ | 3D Printing A Modular Guitar Means It Can Look Like Whatever You Want | Lewin Day | [
"Musical Hacks"
] | [
"3D printed parts",
"guitar"
] | Got some spare filament and looking to build a guitar you can truly call your own?
[The 3D Print Zone] has created a modular 3D printable guitar system
that lets you easily mix and match different components for the ultimate in customization.
The build is based around a central core, which combines the pickups, bridge,... | 25 | 7 | [
{
"comment_id": "8135139",
"author": "I Alone Possess The Truth",
"timestamp": "2025-06-04T09:00:05",
"content": "I want one! But.In no universe is this either a Les Paul, Telecaster or any other style guitar. Because, and here’s the kicker Danno, the neck doesn’t change. The pickups are too clos... | 1,760,371,526.503261 | ||
https://hackaday.com/2025/06/03/making-a-lego-vehicle-which-can-cross-large-gaps/ | Making A LEGO Vehicle Which Can Cross Large Gaps | John Elliot V | [
"hardware",
"Robots Hacks",
"Toy Hacks"
] | [
"gap crosser",
"lego",
"Lego engineering"
] | Here is a hacker showing off their engineering chops. This video shows successive design iterations for a LEGO vehicle
which can cross increasingly large gaps
.
At the time of writing this video from [
Brick Experiment Channel
] has been seen more than 110,000,000 times, which is… rather a lot. We guess with a view cou... | 6 | 3 | [
{
"comment_id": "8135109",
"author": "Richard",
"timestamp": "2025-06-04T07:15:47",
"content": "Catch up guys, there are many channels dedicated to completing lego engineering challenges. And what is great, they are available for youtube kids too. Lego must be responsible for creating many engineers... | 1,760,371,526.442056 | ||
https://hackaday.com/2025/06/03/building-an-automatic-wire-stripper-and-cutter/ | Building An Automatic Wire Stripper And Cutter | Lewin Day | [
"Tool Hacks"
] | [
"3d printer",
"wire cutter",
"wire stripper"
] | Stripping and cutting wires can be a tedious and repetitive part of your project. To save time in this regard,
[Red] built an automatic stripper and cutter to do the tiring work for him.
An ESP32 runs the show in this build. Via a set of A4988 stepper motor drivers, it controls two NEMA 17 stepper motors which control ... | 25 | 14 | [
{
"comment_id": "8135029",
"author": "TG",
"timestamp": "2025-06-04T02:19:16",
"content": "Should use the ESP32 to do a little simple math: it adds up how much time it would take to manually strip all the wires you process with it, and then compare that with how many hours were spent on the project…... | 1,760,371,526.684379 | ||
https://hackaday.com/2025/06/03/spin-casting-this-telescope-mirror-in-resin-didnt-go-to-plan/ | Spin-Casting This Telescope Mirror In Resin Didn’t Go To Plan | Lewin Day | [
"classic hacks",
"Parts"
] | [
"mirror",
"resin",
"silicone"
] | For most of us, mirrors are something we buy instead of build. However, [Unnecessary Automation] wanted to craft mirrors of his own for a custom telescope build. As it turns out,
producing optically-useful mirrors is not exactly easy.
For the telescope build in question, [Unnecessary Automation] needed a concave mirror... | 29 | 12 | [
{
"comment_id": "8134714",
"author": "Lightislight",
"timestamp": "2025-06-03T09:35:09",
"content": "This is one of the alchemical projects for home telescope makers. I’ve seen and heard from people who have tried this over the years. From internet strangers to professors and a friend. Even had a sc... | 1,760,371,526.625235 | ||
https://hackaday.com/2025/06/02/the-keyboard-sinclair-never-made/ | The Keyboard Sinclair Never Made | Heidi Ulrich | [
"classic hacks",
"PCB Hacks",
"Peripherals Hacks",
"Retrocomputing"
] | [
"keyboard",
"keycap",
"pcb",
"sinclair",
"spacebar",
"ZX Spectrum"
] | For those of us who’ve spent far too long hammering rubber keys into submission, a glorious solution has arrived. [Lee Smith] designed
the ZX Mechtrum Deluxe
, the ultimate keyboard upgrade for your beloved ZX Spectrum 48k. Thanks to [morefunmakingit], you can see this build-it-yourself mechanical mod below. It finally... | 21 | 7 | [
{
"comment_id": "8134676",
"author": "Nikolai",
"timestamp": "2025-06-03T07:50:38",
"content": "In Russia a lot of ZX clones were made with mechanical keyboard. All kind of types. I was making ZX keyboards from almost scratch.“Robik” for examplehttps://www.youtube.com/watch?v=kLevYmtCUXQ",
"pare... | 1,760,371,526.558608 | ||
https://hackaday.com/2025/06/02/the-1972-intercal-compiler-revealed/ | The 1972 INTERCAL Compiler Revealed | Al Williams | [
"Retrocomputing",
"Software Development"
] | [
"INTERCAL",
"SNOBOL",
"SPITBOL"
] | Have you ever heard of INTERCAL? If you haven’t, don’t feel bad. This relatively obscure language dates back to 1972 with the goal of being difficult to read and write. It is the intellectual parent of systems like brainf**k and other bad languages. Now, you can read the
INTERCAL-72 source code
thanks to a found printo... | 19 | 11 | [
{
"comment_id": "8134607",
"author": "alloydog",
"timestamp": "2025-06-03T02:05:29",
"content": "No “THANK YOU” statement to end the programme run?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8134674",
"author": "Greg Mathews",
"timestamp"... | 1,760,371,527.213223 | ||
https://hackaday.com/2025/06/02/planetary-poetry-with-a-tiny-digital-core/ | Planetary Poetry With A Tiny Digital Core | Heidi Ulrich | [
"classic hacks",
"Misc Hacks",
"Multitouch Hacks",
"Toy Hacks"
] | [
"3d print",
"clockwork",
"ESP32",
"moon",
"orrery",
"planetarium",
"reed switch"
] | Some hacks just tickle the brain in a very particular way. They’re, for a change, not overly engineered; they’re just elegant, anachronistic, and full of mischief. That’s exactly what [Frans] pulls off with
A Gentleman’s Orrery
, a tiny, simple clockwork solar system. Composed of shiny brass and the poise of 18th-centu... | 7 | 6 | [
{
"comment_id": "8134581",
"author": "Will Belden",
"timestamp": "2025-06-02T23:42:36",
"content": "How long do you have to spin it before a months-long total blackout?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8134599",
"author": "Paul",
"timesta... | 1,760,371,527.106331 | ||
https://hackaday.com/2025/06/02/3d-printing-a-capable-rc-car/ | 3D Printing A Capable RC Car | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"ESP32",
"R/C car",
"radio control"
] | You can buy all sorts of RC cars off the shelf, but doing so won’t teach you a whole lot. Alternatively, you could follow [TRDB]’s example,
and design your own from scratch.
The Lizard, as it is known, is a fun little RC car. It’s got a vaguely Formula 1-inspired aesthetic, and looks fetching with the aid of two-tone 3... | 6 | 6 | [
{
"comment_id": "8134588",
"author": "Mr Name Required",
"timestamp": "2025-06-02T23:51:46",
"content": "Nice design. I wonder if the builder is aware of the OpenRC project, which encompasses many builds similar to this:https://www.thingiverse.com/search?q=OpenRC",
"parent_id": null,
"depth"... | 1,760,371,527.254959 | ||
https://hackaday.com/2025/06/02/ender-3-pro-gets-a-second-job-as-a-stator-winder/ | Ender 3 Pro Gets A Second Job As A Stator Winder | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"coil",
"coil winder",
"coils",
"ender 3 pro",
"stator",
"winding"
] | Sometimes, you find yourself in need of a coil. You could sit around winding thousands of turns of copper wire yourself, but that would be remarkably tedious. Thus, instead, you might follow the example of [OJengineering] and choose to get a machine to do it for you.
This build first popped up on on Reddit, with [OJeng... | 10 | 5 | [
{
"comment_id": "8134518",
"author": "henningdkf29543cc0f",
"timestamp": "2025-06-02T19:29:48",
"content": "Neat tool.First thought was “A printer does not have the force to do this.”, but then the video shows the low current charge coil for a CDI.Second was 1000$? With tax and all, something simila... | 1,760,371,527.156976 | ||
https://hackaday.com/2025/06/02/keebin-with-kristina-the-one-with-the-h-r-giger-keyboard/ | Keebin’ With Kristina: The One With The H.R. Giger Keyboard | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"book typewriter",
"cherry",
"cherry mx",
"electromagnetic field",
"Elliot-Fisher book typewriter",
"inductive switch",
"industrial design",
"lego",
"LEGO tenting",
"serenity now",
"tenting"
] | I had to bust out
Brain Salad Surgery
to write this one, folks. It was that, or put on some Ministry or something.
Just look at all the industrial-ness dripping from [heinn_dev]’s creation
.
Image by [heinn_dev] via
reddit
Apparently [heinn_dev] wasn’t completely satisfied with his Chocofi case, and instead of requesti... | 19 | 5 | [
{
"comment_id": "8134474",
"author": "BT",
"timestamp": "2025-06-02T17:26:17",
"content": "Can someone tell me why many of these split and/or “wavy” keyboards don’t have arrow keys? (Apart ftom many of those photoed not having any key cap legends at all, it is clear there is usually not enough keys ... | 1,760,371,527.319438 | ||
https://hackaday.com/2025/06/02/what-use-is-an-original-raspberry-pi/ | What Use Is An Original Raspberry Pi? | Jenny List | [
"Raspberry Pi"
] | [
"32-bit",
"Pi 1",
"Raspberry Pi 1"
] | Almost uniquely among consumer grade computer manufacturers, the Raspberry Pi folks still support their earliest boards. We’re guessing that’s in part due to the much more recent Pi Zero using the same 32-bit system-on-chip, but it’s still impressive that a 13-year-old single board computer still has manufacturer OS su... | 53 | 25 | [
{
"comment_id": "8134456",
"author": "REALiAM",
"timestamp": "2025-06-02T16:21:12",
"content": "Did this myself just two weeks ago, pihole on a rpi 1. still running great, had it in docker but kept having issues and kids nowadays can’t function without internet access…",
"parent_id": null,
"... | 1,760,371,527.40287 | ||
https://hackaday.com/2025/06/02/the-potential-big-boom-in-every-dust-cloud/ | The Potential Big Boom In Every Dust Cloud | Maya Posch | [
"Engineering",
"Featured",
"Interest",
"Original Art",
"Science",
"Slider"
] | [
"dust",
"dust explosion",
"dust extraction",
"Thermite"
] | To the average person, walking into a flour- or sawmill and seeing dust swirling around is unlikely to evoke much of a response, but those in the know are quite likely to bolt for the nearest exit at this harrowing sight. For as harmless as a fine cloud of flour, sawdust or even coffee creamer may appear, each of these... | 49 | 21 | [
{
"comment_id": "8134413",
"author": "ALX_skater",
"timestamp": "2025-06-02T14:05:19",
"content": "Fun fact: powdered eggs were used in the formulation of pykrete as a binding agent. The duck proteins contained in egg yolk help improve the structural integrity and cohesion of ice and sawdust mixture... | 1,760,371,527.492973 | ||
https://hackaday.com/2025/06/02/depositing-metal-on-glass-with-fiber-laser/ | Depositing Metal On Glass With Fiber Laser | Tyler August | [
"hardware",
"High Voltage",
"News"
] | [
"deposition",
"fiber laser",
"fibre laser",
"metal etching"
] | Fiber lasers aren’t nearly as common as their diode and CO2 cousins, but if you’re lucky enough to have one in your garage or local makerspace,
this technique for depositing thin films of metals
in [Breaking Taps] video, embedded below, might be worth checking out.
It’s a very simple hack: a metal shim or foil is sandw... | 17 | 9 | [
{
"comment_id": "8134378",
"author": "shinsukke",
"timestamp": "2025-06-02T11:55:18",
"content": "Me want at home",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8134385",
"author": "FEW",
"timestamp": "2025-06-02T12:19:34",
"content": "I think that... | 1,760,371,527.54621 | ||
https://hackaday.com/2025/06/02/this-bb-shooter-has-a-spring-but-not-for-what-you-think/ | This BB Shooter Has A Spring, But Not For What You Think | Donald Papp | [
"Toy Hacks"
] | [
"3d printed",
"bb",
"detente",
"four bar linkage",
"print in place",
"shooter"
] | [It’s on my MIND] designed
a clever BB blaster
featuring a four-bar linkage that prints in a single piece and requires no additional hardware. The interesting part is how it turns a trigger pull into launching a 6 mm plastic BB. There is a spring, but it only acts as a trigger return and plays no part in launching the ... | 24 | 7 | [
{
"comment_id": "8134334",
"author": "Ralph Doncaster (Nerd Ralph)",
"timestamp": "2025-06-02T08:31:01",
"content": "The four-bar linkage mechanism offers a range of advantages in the design of contemporary firearms, making it a valuable choice for engineers and designers in the industry. One of the... | 1,760,371,527.609619 | ||
https://hackaday.com/2025/06/01/testing-brick-layers-in-orcaslicer-with-staggered-perimeters/ | Testing Brick Layers In OrcaSlicer With Staggered Perimeters | Maya Posch | [
"3d Printer hacks"
] | [
"brick layers",
"FDM"
] | The OrcaSlicer staggered perimeters in an FDM print, after slicing through the model. (Credit: CNC Kitchen)
The idea of staggered (or brick) layers in FDM prints has become very popular the past few years, with now nightly builds of OrcaSlicer featuring the ‘Stagger Perimeters’ option to automate the process, as demons... | 16 | 5 | [
{
"comment_id": "8134324",
"author": "Cad the Mad",
"timestamp": "2025-06-02T07:39:32",
"content": "And now for a dozen HaD commentators to explain that this is the wrong way to measure the strength of prints.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8... | 1,760,371,527.784232 | ||
https://hackaday.com/2025/06/01/2025-pet-hacks-contest-weigh-your-dog-the-easy-way/ | 2025 Pet Hacks Contest: Weigh Your Dog The Easy Way | Jenny List | [
"contests",
"home hacks"
] | [
"dog bed",
"load cell",
"weighing machine"
] | If you need to weigh your pet, you’ll soon find that getting an animal to stand on a weighing machine to order is very difficult indeed. If the critter in question is a cat or a small dog you can weigh yourself both holding them and not holding them, and compute the difference. But in the case of a full size Bernese mo... | 4 | 4 | [
{
"comment_id": "8134277",
"author": "Ostracus",
"timestamp": "2025-06-02T02:57:19",
"content": "Easiest is seeing if you can get a satellite to orbit them.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8134402",
"author": "Alexander Pruss",
"timestam... | 1,760,371,527.825685 | ||
https://hackaday.com/2025/06/01/hackaday-links-june-1-2025/ | Hackaday Links: June 1, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"hackaday links"
] | It appears that we’re approaching the HAL-9000 point on the AI hype curve with
this report
, which suggests that Anthropic’s new AI model is willing to exhibit some rather antisocial behavior to achieve its goals. According to a pre-release testing summary, Claude Opus 4 was fed some hypothetical company emails that su... | 7 | 5 | [
{
"comment_id": "8134254",
"author": "Antron Argaiv",
"timestamp": "2025-06-02T00:14:27",
"content": "My late brother’s Nikon FE is sitting on the desk next to me with a roll of Fuji 200 print film in it.Analog cameras are fun to use.",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,371,528.258373 | ||
https://hackaday.com/2025/06/01/its-midi-for-the-trs-80/ | It’s MIDI For The TRS-80! | Lewin Day | [
"Misc Hacks"
] | [
"midi",
"tracker",
"trs-80"
] | The Radio Shack TRS-80 was a much-loved machine across America. However, one thing it lacked was MIDI. That’s not so strange given the era it was released in, of course. Nevertheless, [Michael Wessel] has seen fit to correct this by creating the MIDI/80—
a soundcard and MIDI interface for this old-school beast.
The cor... | 16 | 9 | [
{
"comment_id": "8134219",
"author": "I Alone Possess The Truth",
"timestamp": "2025-06-01T20:06:45",
"content": "This is wonderful! MIDI has a straightforwardness that appeals to me. Of course I know nothing about it after the ’80s. Built a studio based around a PC-XT clone. Cakewalk4Life!",
... | 1,760,371,528.046238 | ||
https://hackaday.com/2025/06/01/plenty-of-leds-and-useful-too-the-2025-dors-cluc-badge/ | Plenty Of LEDs And Useful Too: The 2025 DORS/CLUC Badge | Jenny List | [
"cons"
] | [
"badge",
"badgelife",
"DORS/CLUC",
"NFC"
] | It’s always nice to see new developments in the world of electronic badges, and while there are events and badge teams pushing the technological envelope there’s still plenty of scope for innovation without too many exotic parts.
This year’s DORS/CLUC open source conference in Croatia has just such a badge
, with a lar... | 2 | 1 | [
{
"comment_id": "8134207",
"author": "ono",
"timestamp": "2025-06-01T18:00:26",
"content": "The ideal companion of some red cylinders wrapped together, with a couple of loose cables.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8134223",
"author": ... | 1,760,371,528.085307 | ||
https://hackaday.com/2025/06/01/making-the-codec-communicator-from-metal-gear-solid/ | Making The Codec Communicator From Metal Gear Solid | Lewin Day | [
"Misc Hacks"
] | [
"codec",
"metal gear",
"metal gear solid",
"walkie talkie"
] | [3DSage] likes building replicas of hardware from movies and video games, often with a functional twist. His latest build aimed
to bring the Codec from
Metal Gear Solid
to life.
If you haven’t played the
Metal Gear
games, the Codec has been modelled somewhat like an advanced walkie talkie at times, but has often been k... | 9 | 7 | [
{
"comment_id": "8134178",
"author": "Gardoni",
"timestamp": "2025-06-01T15:19:01",
"content": "I like playing MGS2 on “Fuguri Hard” difficulty, “Boy Next Door” feels too hard and I can’t enjoy the plot anymore.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8... | 1,760,371,528.304842 | ||
https://hackaday.com/2025/06/01/adaptive-optics-take-clearest-pictures-of-the-sun-yet/ | Adaptive Optics Take Clearest Pictures Of The Sun Yet | Bryan Cockfield | [
"Science"
] | [
"adaptive optics",
"corona",
"goode solar telescope",
"mirror",
"observatory",
"solar",
"sun",
"telescope"
] | It’s sometimes easy to forget that the light in the sky is an actual star. With how reliable it is and how busy we tend to be as humans, we can take that incredible fact and stow it away and largely go on with our lives unaffected. But our star is the thing that gives everything on the planet life and energy and is imp... | 9 | 7 | [
{
"comment_id": "8134146",
"author": "helge",
"timestamp": "2025-06-01T12:14:00",
"content": "Would have loved a link to the actual AO implementation on the Goode Solar Telescope. LMGTFY below.Inhttps://www.nature.com/articles/s41550-025-02564-0under “Methods”, “The GST coronal adaptive optics syste... | 1,760,371,527.99425 | ||
https://hackaday.com/2025/06/01/portal-2-becomes-an-impressively-capable-web-server/ | Portal 2 Becomes An Impressively Capable Web Server | Lewin Day | [
"Games"
] | [
"portal 2",
"source",
"source engine",
"valve",
"web server",
"webserver"
] | Portal 2
is mostly known as the successful sequel to Valve’s weird physics platformer,
Portal.
It’s not really known for being a webserver. That might change, though,
given the hard work of [PortalRunner].
Quite literally, [PortalRunner] hacked the Source engine and Portal 2 to actually run a working HTTP web server. T... | 5 | 2 | [
{
"comment_id": "8134111",
"author": "M",
"timestamp": "2025-06-01T08:28:33",
"content": "I guess it’s less making portal 2 a webserver and more gluing a crude homebrew webserver into the game so it can report status info.",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,371,529.892635 | ||
https://hackaday.com/2025/05/31/disarming-a-nuke-twice/ | Disarming A Nuke… Twice | Bryan Cockfield | [
"Science"
] | [
"atomic",
"bomb",
"explosion",
"misfire",
"nuclear",
"science"
] | Since the tail end of World War II, humanity has struggled to deal with its newfound ability to harness the tremendous energy in the nucleus of the atom. Of course there have been some positive developments like nuclear power which can produce tremendous amounts of electricity without the greenhouse gas emissions of fo... | 26 | 11 | [
{
"comment_id": "8134137",
"author": "Antron Argaiv",
"timestamp": "2025-06-01T11:27:59",
"content": "And, afterwards, they pulled diamonds out of his sphincter.Looks good on a resume, though: “Disarmed two atomic bombs”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,371,530.006138 | ||
https://hackaday.com/2025/05/31/can-we-replace-a-program-counter-with-a-linear-feedback-shift-register-yes-we-can/ | Can We Replace A Program Counter With A Linear-Feedback Shift Register? Yes We Can! | John Elliot V | [
"FPGA"
] | [
"cpu",
"forth",
"fpga",
"vhdl",
"vm"
] | Today we heard from [Richard James Howe] about
his new CPU
. This new 16-bit CPU is implemented in VHDL for an FPGA.
The really cool thing about this CPU is that it eschews the typical program counter (PC) and replaces it with a
linear-feedback shift register
(LFSR). Apparently an LFSR can be implemented in hardware wi... | 32 | 14 | [
{
"comment_id": "8134071",
"author": "M",
"timestamp": "2025-06-01T03:52:25",
"content": "Seems fairly straightforward. An LFSR will follow a predictable series of states in a loop, just like a counter will, and if the loop is large enough it becomes equivalent to a fairly usefully-large counter. Th... | 1,760,371,530.302093 | ||
https://hackaday.com/2025/05/31/esper-cdp-plays-cds-and-streams-in-style/ | ESPer-CDP Plays CDs And Streams In Style | Tyler August | [
"Arduino Hacks",
"Musical Hacks"
] | [
"ATAPI",
"audio dac",
"CD-ROM",
"HiFi",
"stereo",
"vfd display"
] | What do you get when you combine an ESP32, a 16-bit DAC, an antique VFD, and an IDE CD-ROM drive? Not much, unless you put in the work, which [Akasaka Ryuunosuke] did to create
ESPer-CDP, a modern addition for your hi-fi rack.
It plays CDs (of course), but also can also scrobb the disks to Last.fm, automatically fetch ... | 12 | 4 | [
{
"comment_id": "8134049",
"author": "boondaburrah",
"timestamp": "2025-06-01T00:05:30",
"content": "You sure about that CD-ROM having S/PDIF out? I’ve never seen that in all my years of PC building; the audio out from IDE CD drives is analogue specifically because your computer may not have a CD qu... | 1,760,371,530.144545 | ||
https://hackaday.com/2025/05/31/hot-rod-backyard-bath-on-steel-spring-legs/ | Hot Rod Backyard Bath On Steel Spring Legs | Heidi Ulrich | [
"hardware",
"home hacks",
"how-to",
"News"
] | [
"bath",
"clamp",
"junk",
"leaf springs",
"springs",
"steel welding",
"tub",
"weld"
] | In a fusion of scrapyard elegance and Aussie ingenuity, [Mark Makies] has given a piece of old steel a steamy second life with
his ‘CastAway Tub’
. Call it a bush mechanic’s fever dream turned functional sculpture, starring two vintage LandCruiser leaf springs, and a rust-hugged cast iron tub dug up after 20 years in h... | 16 | 5 | [
{
"comment_id": "8134011",
"author": "irox",
"timestamp": "2025-05-31T20:57:01",
"content": "☠️ Definitely not safe🍺 Dubiously inspired🚫 Not recommended🛷 Not steerable⚠️ Probably illegal",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8134029",
"au... | 1,760,371,529.946155 | ||
https://hackaday.com/2025/05/31/building-a-wireless-motorized-fader-for-lighting-control/ | Building A Wireless Motorized Fader For Lighting Control | Lewin Day | [
"Peripherals Hacks"
] | [
"fader",
"lighting desk",
"motorized fader"
] | Motorized faders are very cool, and you can find them in everything from expensive mixing desks to high-end video editing decks. If you want to build your own wireless motorized fader controls for your own projects,
you might like this project from [Ian Peterson].
Faders are useful controls, but they’re usually very on... | 2 | 2 | [
{
"comment_id": "8134070",
"author": "echodelta",
"timestamp": "2025-06-01T03:51:42",
"content": "And Yamaha organs at the high end. I had a repair with 15 or so sliders that were motorized. Hitting a preset moved them, but when sluggish they reprogrammed themselves where they stopped. Belts were gu... | 1,760,371,530.043592 | ||
https://hackaday.com/2025/05/31/pulling-back-the-veil-practically/ | Pulling Back The Veil, Practically | Elliot Williams | [
"Hackaday Columns",
"Rants"
] | [
"hacking and philosophy",
"newsletter",
"projects"
] | In a marvelous college lecture in front of a class of engineering students, V. Hunter Adams
professed his love for embedded engineering
, but he might as well have been singing the songs of
our
people – the hackers. If you occasionally feel the need to explain to people why you do what you do, at fancy cocktail parties... | 15 | 5 | [
{
"comment_id": "8133931",
"author": "Rick",
"timestamp": "2025-05-31T14:14:18",
"content": "tl;dr anyone?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133933",
"author": "Danjovic",
"timestamp": "2025-05-31T14:31:36",
"content": "... | 1,760,371,530.094436 | ||
https://hackaday.com/2025/05/31/a-crt-display-for-retro-weather-forecasting/ | A CRT Display For Retro Weather Forecasting | Aaron Beckendorf | [
"classic hacks",
"Raspberry Pi"
] | [
"crt",
"CRT display",
"openweathermap",
"retro",
"the Weather Channel",
"weather display"
] | It would be hard to find any electronics still in production which use CRT displays, but for some inscrutable reason it’s easy to find cheap 4-inch CRTs on AliExpress. Not that we’re complaining, of course. Especially when they get picked up for projects like this
Retro CRT Weather Display from [Conrad Farnsworth]
, wh... | 16 | 6 | [
{
"comment_id": "8133911",
"author": "CJay",
"timestamp": "2025-05-31T11:41:48",
"content": "I’ve been looking for an excuse to buy one (or more) of these CRTs, still not there yet but I quite like the idea of a “handheld” gaming console with a selection of vintage games like space invaders",
"p... | 1,760,371,530.360878 | ||
https://hackaday.com/2025/05/31/making-a-treadmill-into-a-3d-printer/ | Making A Treadmill Into A 3D Printer | Lewin Day | [
"3d Printer hacks"
] | [
"3d print",
"3d printer",
"treadmill"
] | A treadmill-style bed can be a great addition to a 3D printer. It allows prints to be shifted out of the build volume as printing continues, greatly increasing the size and flexibility of what you can print. But [Ivan Miranda] and [Jón Schone] had a question. Instead of making a treadmill to suit a 3D printer,
what if ... | 7 | 5 | [
{
"comment_id": "8133919",
"author": "Halogenek",
"timestamp": "2025-05-31T12:45:46",
"content": "So unnecessary. I love it. :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8134018",
"author": "CityZen",
"timestamp": "2025-05-31T21:18:11",
"conte... | 1,760,371,530.188611 | ||
https://hackaday.com/2025/05/30/17-year-old-hellboy-ii-prop-still-amazes/ | 17 Year OldHellboy IIProp Still Amazes | Heidi Ulrich | [
"3d Printer hacks",
"Robots Hacks"
] | [
"3d printing",
"animatronic",
"cgi",
"hellboy",
"hellboy II",
"mechanical",
"prop",
"servo"
] | The AI effects we know these days were once preceded by CGI, and those were once preceded by true hand-built physical props. If that makes you think of
Muppets
, this video will change your mind.
In a behind-the-scenes look with [Adam Savage]
, effects designer [Mark Setrakian] reveals the full animatronic glory of Mr.... | 7 | 4 | [
{
"comment_id": "8133849",
"author": "pelrun",
"timestamp": "2025-05-31T06:27:56",
"content": "That chain nozzle is a mindblower.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8133852",
"author": "CRJEEA",
"timestamp": "2025-05-31T07:14:44",
"cont... | 1,760,371,530.230017 | ||
https://hackaday.com/2025/05/30/white-led-turning-purple-analyzing-a-phosphor-failure/ | White LED Turning Purple: Analyzing A Phosphor Failure | Maya Posch | [
"Repair Hacks"
] | [
"autopsy",
"phosphor"
] | White LED bulbs are commonplace in households by now, mostly due to their low power usage and high reliability. Crank up the light output enough and you do however get high temperatures and corresponding interesting failure modes. An example is the one demonstrated by the [electronupdate] channel on YouTube with a Phil... | 32 | 17 | [
{
"comment_id": "8133794",
"author": "Simula",
"timestamp": "2025-05-31T02:32:16",
"content": "AFAIK it’s not UV but blue LED.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133910",
"author": "Adam",
"timestamp": "2025-05-31T11:41:11",
... | 1,760,371,530.544424 | ||
https://hackaday.com/2025/05/30/you-wouldnt-download-a-skateboard/ | You Wouldn’t Download A Skateboard? | Fenix Guthrie | [
"3d Printer hacks"
] | [
"3D printed skateboard",
"skateboard",
"skateboard hacks",
"skateboarding"
] | At the end of the day, a skateboard boils down to a plank of wood with some wheels. They are wonderfully simple and fun and cheap modes of transportation. But this is Hackaday, so we are not here to talk about any normal skateboard, but one you can download and print. [megalog_’s]
Skateboard MK2 is made almost entirely... | 9 | 8 | [
{
"comment_id": "8133789",
"author": "Ostracus",
"timestamp": "2025-05-31T01:51:13",
"content": "Actually I wouldn’t. Break my neck on the thing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133817",
"author": "KDawg",
"timestamp": "2025-0... | 1,760,371,530.589782 | ||
https://hackaday.com/2025/05/30/tidy-led-matrix-displays-gifs-on-demand/ | Tidy LED Matrix Displays GIFs On Demand | Lewin Day | [
"LED Hacks"
] | [
"ESP8266",
"led",
"led matrix",
"ws2812b"
] | When it comes to LED matrixes, building one is just the first step. Then you have to decide what to display on it. [panjanek] came up with a relatively flexible answer to this question,
building an RGB LED matrix that can display the GIFs of your choice.
The web interface accepts GIFs for display.
[panjanek] grabbed WS... | 4 | 3 | [
{
"comment_id": "8133728",
"author": "Joshua",
"timestamp": "2025-05-30T20:52:08",
"content": "That’s Windows icon resolution (32×32)..https://en.m.wikipedia.org/wiki/ICO_(file_format)#History",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8133740",
"autho... | 1,760,371,530.632729 | ||
https://hackaday.com/2025/05/30/2025-pet-hacks-contest-keep-the-prey-at-bay-with-the-cat-valve/ | 2025 Pet Hacks Contest: Keep The Prey At Bay With The Cat Valve | Jenny List | [
"contests",
"home hacks"
] | [
"2025 Pet Hacks Contest",
"cat",
"prey",
"raspberry pi"
] | Some cats are what you might call indoor cats, happy to stretch out in the lap of indoor luxury and never bother themselves with the inclement outdoors again. Others however are fully in touch with their Inner Cat, and venture forth frequently in search of whatever prey they can find.
[Rkramer] has a cat of this nature... | 11 | 5 | [
{
"comment_id": "8133680",
"author": "echodelta",
"timestamp": "2025-05-30T17:29:21",
"content": "The best one here used open CV or some sorts and profiled the cat excluding other cats, animals, and the home cat with prey in mouth. Kudos for simple exit and separate enter to quarantine. Could be a p... | 1,760,371,530.978293 | ||
https://hackaday.com/2025/05/30/hackaday-podcast-episode-323-impossible-crt-surgery-fuel-cells-stream-gages-and-a-love-letter-to-microcontrollers/ | Hackaday Podcast Episode 323: Impossible CRT Surgery, Fuel Cells, Stream Gages, And A Love Letter To Microcontrollers | Dan Maloney | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Elliot and Dan teamed up this week for the podcast, and after double-checking, nay, triple-checking that we were recording, got to the business of reviewing the week’s hacks. We kicked things off with a look at the news, including a potentially exciting Right to Repair law in Washington state and the sad demise of NASA... | 1 | 1 | [
{
"comment_id": "8133869",
"author": "X-MarX-THX-SpXt",
"timestamp": "2025-05-31T08:36:25",
"content": "The ‘What’s that sound’ segment is devilish this time.The echo makes it even harder to guess.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,371,530.854587 | ||
https://hackaday.com/2025/05/30/diy-solar-generator-inspired-by-james-webb-telescope/ | DIY Solar Generator Inspired By James Webb Telescope | Lewin Day | [
"green hacks"
] | [
"heat",
"mirror",
"solar power",
"solar thermal"
] | If you look at this solar generator from [Concept Crafted Creations], you might think it’s somehow familiar. That’s because the design was visually inspired by the James Webb Space Telescope, or JWST. Ultimately, though, it’s purpose is quite different—
it’s designed to use mirrors to collect and harness solar energy.
... | 36 | 12 | [
{
"comment_id": "8133657",
"author": "Tired wheel",
"timestamp": "2025-05-30T16:18:25",
"content": "We are all preoccupied about AI slop but we accept the “content creator slop”. This is an article about something that doesn’t work, that it’s only purpose is to get views and supposedly teach you som... | 1,760,371,531.048252 | ||
https://hackaday.com/2025/05/30/this-week-in-security-cia-star-wars-git-prompt-injection-and-more/ | This Week In Security: CIA Star Wars, Git* Prompt Injection And More | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"ai",
"CVEs",
"This Week in Security",
"Windows Registry"
] | The CIA ran a series of web sites in the 2000s. Most of them were about news, finance, and other relatively boring topics, and they spanned 29 languages. And they all had a bit of a hidden feature: Those normal-looking websites had a secret login and hosted CIA cover communications with assets in foreign countries. A p... | 3 | 2 | [
{
"comment_id": "8133756",
"author": "eriklscott",
"timestamp": "2025-05-30T23:14:53",
"content": "Becoming SYSTEM at this point is trivial.OK, I’m curious, and I knowjustenough to be a menace to myself and no one else…Windows NT-family kernels are more-or-less direct descendants of DEC’s VMS, both ... | 1,760,371,531.152818 | ||
https://hackaday.com/2025/05/30/sustainable-3d-prints-with-decomposable-filaments/ | Sustainable 3D Prints With Decomposable Filaments | Heidi Ulrich | [
"3d Printer hacks",
"green hacks"
] | [
"3d print",
"3d printing",
"filament",
"h2o",
"paper",
"PLA",
"PVA",
"TPU",
"water"
] | What if you could design your 3D print to fall apart on purpose? That’s the curious promise of
a new paper from CHI 2025
, which brings a serious hacker vibe to the sustainability problem of multi-material 3D printing. Titled
Enabling Recycling of Multi-Material 3D Printed Objects through Computational Design and Disas... | 24 | 6 | [
{
"comment_id": "8133594",
"author": "freedomunit",
"timestamp": "2025-05-30T12:03:51",
"content": "Who needs this?Most people never print multi material, and this requires 3 (pla,tpu, water soluble pla)… So you would have to have a use case where an item was temporarily needed with the properties o... | 1,760,371,531.108224 | ||
https://hackaday.com/2025/05/30/today-in-edinburgh-the-open-source-hardware-summit/ | Today In Edinburgh: The Open Hardware Summit | Elliot Williams | [
"cons"
] | [
"conventions",
"open source hardware"
] | Just a quickie for anyone who is in the neighborhood, today
the Open Source Hardware Association’s annual Open Hardware Summit conference
starts in Edinburgh, Scotland. If you’re able to make it, it’s a microcosm of the open-source hardware world, and full of great talks and great hackers.
If you’re not in Scotland, th... | 9 | 5 | [
{
"comment_id": "8133589",
"author": "70sjukebox",
"timestamp": "2025-05-30T11:50:51",
"content": "“Edinburg, Scotland”, Edinburgh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8133608",
"author": "Rohit",
"timestamp": "2025-05-30T12:37:42",
"cont... | 1,760,371,530.81318 | ||
https://hackaday.com/2025/05/30/what-does-linux-need-a-dial/ | What Does Linux Need? A Dial! | Jenny List | [
"Linux Hacks",
"Peripherals Hacks"
] | [
"dial phone",
"linux kernel",
"rotary dial"
] | It’s fair to say that there can’t be many developers who have found the need for a rotary telephone dial as a peripheral for their Linux computer, but in case you are among them you might find
[Stefan Wiehler]’s kernel driver for rotary dials
to be of use.
It’s aimed at platforms such as systems-on-chip that have ready... | 11 | 9 | [
{
"comment_id": "8133534",
"author": "philenotfound",
"timestamp": "2025-05-30T08:28:10",
"content": "Nice! I have built something similar, but with an Arduino as a HID Keyboard for the rotary dial, sending “0”-“9” and triggerhappy for the actions.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,371,531.197529 | ||
https://hackaday.com/2025/05/29/another-doom-port-to-the-atari-st/ | Another Doom Port To The Atari ST | Lewin Day | [
"Misc Hacks"
] | [
"atari st",
"doom",
"port"
] | Last week, we examined a Doom port for the venerable Atari ST. As is so often the way with this thing, one netted another, and [Steve] wrote in to inform us about
a different version under the name DOOM8088ST.
The port is so named because it’s based on Doom8088, which was originally written for DOS machines running Int... | 7 | 4 | [
{
"comment_id": "8133605",
"author": "Daniel",
"timestamp": "2025-05-30T12:32:41",
"content": "If you are wondering why the low horizontal resolution: Atari made an unfortunate choice with the pixel format of the color modes. For the 16 color mode in memory you have two bytes with the first bit of 1... | 1,760,371,531.24331 | ||
https://hackaday.com/2025/05/29/icepi-zero-a-pi-zero-for-fpga/ | IcePI Zero: A Pi Zero For FPGA | Tyler August | [
"FPGA"
] | [
"fpga board",
"pi zero"
] | The Rasberry Pi Zero is a delightful form factor, with its GIPO and USB and HDMI, but it’s stuck using the same old ARM processor all the time. What if you wanted to change it up with some OpenSPARC, RISC V, OpenPOWER, or even your own oddball homebrew ISA and processor? Well, fret not, for [Chengyin Yao]’s
IcePi Zero ... | 32 | 10 | [
{
"comment_id": "8133474",
"author": "hjf",
"timestamp": "2025-05-30T04:04:00",
"content": "to be honest, pretty much all of “hobby” electronics nowadays is yolo PCB design by people sponsored by either jlcpcb or pcbway. so many absolute trash designs out there made by a guy that, if not sponsored b... | 1,760,371,531.313894 | ||
https://hackaday.com/2025/05/29/a-simple-tip-for-gluing-those-led-filaments/ | A Simple Tip For Gluing Those LED Filaments | Donald Papp | [
"LED Hacks"
] | [
"diorama",
"glue",
"led",
"LED filament",
"shrink tubing"
] | [Boylei] shows that those little
LED filament strips make great freeze-frame blaster shots
in a space battle diorama. That’s neat and all, but what we
really
want to highlight is a simple tip [Boylei] shares about working with these filament strips: how to glue them.
Glue doesn’t stick to LED filament strips, so put on... | 6 | 6 | [
{
"comment_id": "8133450",
"author": "Cad the Mad",
"timestamp": "2025-05-30T01:35:17",
"content": "A handy tip for my next cosplay project. This would probably work for EL wire and over thin rubberized elements.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "... | 1,760,371,531.361759 | ||
https://hackaday.com/2025/05/29/you-can-make-your-own-ribbon-mic-with-a-gum-wrapper/ | You Can Make Your Own Ribbon Mic With A Gum Wrapper | Lewin Day | [
"Misc Hacks"
] | [
"mic",
"microphone",
"ribbon mic",
"ribbon microphone"
] | There are lots of different types of microphone, with the ribbon microphone being one of the rarer ones. Commercial versions are often prized for their tone and frequency response. You can make your own too, as [Something Physical] demonstrates
using a packet of chewing gum.
Yes, the ribbon in this microphone was liter... | 13 | 8 | [
{
"comment_id": "8133389",
"author": "darthvader",
"timestamp": "2025-05-29T20:49:44",
"content": "Great project ;)I just have one question , why not just use normal aluminum foil in place of the gum one ?If it’s the same it will be easier :)",
"parent_id": null,
"depth": 1,
"replies": [... | 1,760,371,531.554439 | ||
https://hackaday.com/2025/05/29/2025-pet-hacks-challenge-poopopticon-is-all-up-in-kittys-business/ | 2025 Pet Hacks Challenge : Poopopticon Is All Up In Kitty’s Business | Tyler August | [
"contests",
"home hacks"
] | [
"2025 Pet Hacks Contest",
"cat litter box",
"ESP32",
"ESP8266",
"infrared",
"line following"
] | After seeing this project, we can say that [James] must be a top-tier roommate. He has two flatmates– one human, one feline, and the feline flatmate’s litterbox was located in a bathroom close to the other human’s room. The odors were bothersome. A bad roommate might simply say that wasn’t their problem, but not [James... | 6 | 4 | [
{
"comment_id": "8133400",
"author": "Toby",
"timestamp": "2025-05-29T21:36:59",
"content": "Missed opportunity for a “fecal recognition” joke if I ever saw one. I would think one obvious problem is that urine is warm too? I guess false positives are better than false negatives in this case.",
"... | 1,760,371,531.469472 | ||
https://hackaday.com/2025/05/29/researchers-are-slowly-finding-ways-to-stem-the-tide-of-pfas-contamination/ | Researchers Are Slowly Finding Ways To Stem The Tide Of PFAS Contamination | Lewin Day | [
"Hackaday Columns",
"Science"
] | [
"drinking water",
"drinking water contamination",
"forever chemicals",
"pfas",
"pfas chemicals",
"pfas contamination"
] | If you’ve been following environmental news over the past couple of decades, you’ve probably heard about PFAS – those pesky “forever chemicals” that seem to turn up everywhere from
drinking water
to
polar bear blood
. They’re bad for us, and we know it, but they’ve been leeching into the environment for decades, often ... | 67 | 9 | [
{
"comment_id": "8133309",
"author": "alialiali",
"timestamp": "2025-05-29T17:19:24",
"content": "Donate blood, by doing so not only are you helping society out but you’re reducing your own PFAS levels.win winVery surprised this isn’t mentioned whenever PFAS are discussed.",
"parent_id": null,
... | 1,760,371,531.775639 | ||
https://hackaday.com/2025/05/29/3d-print-abs-without-a-screaming-hot-bed/ | 3D Print ABS Without A Screaming Hot Bed | Donald Papp | [
"3d Printer hacks"
] | [
"3d printed",
"abs",
"PLA",
"raft",
"warping"
] | ABS is a durable material that can be 3D printed, but requires a 100° C build surface. The print bed of [Pat]’s Bambu Lab A1 Mini is unable to get that hot, which means he can not print ABS…or can he? By fiddling a few settings,
he prints ABS no problem
with only a 60° C bed, thanks to a PLA interface layer.
Here’s wha... | 15 | 7 | [
{
"comment_id": "8133300",
"author": "Digitalzombie",
"timestamp": "2025-05-29T16:45:42",
"content": "My printbed never screamed at me.But it did gave me disappointed looks.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133305",
"author": "Paul",
... | 1,760,371,531.662734 | ||
https://hackaday.com/2025/05/29/forced-e-waste-pcs-and-the-case-of-windows-11s-trusted-platform/ | Forced E-Waste PCs And The Case Of Windows 11’s Trusted Platform | Maya Posch | [
"Featured",
"Interest",
"Original Art",
"Rants",
"Slider"
] | [
"TPM",
"Trusted Platform Module",
"Windows 11"
] | Until the release of Windows 11, the upgrade proposition for Windows operating systems was rather straightforward: you considered whether the current version of Windows on your system still fulfilled your needs and if the answer was ‘no’, you’d buy an upgrade disc. Although system requirements slowly crept up over time... | 145 | 45 | [
{
"comment_id": "8133237",
"author": "Ostracus",
"timestamp": "2025-05-29T14:08:56",
"content": "“What if an fTPM issue bricks the system, or that a sneaky Windows 11 update a few months or years from now prevents a 10th generation Intel CPU from running the OS without crashing due to missing instru... | 1,760,371,532.219736 | ||
https://hackaday.com/2025/05/29/bring-back-the-bios-to-uefi-systems-that-is/ | Bring Back The BIOS! (To UEFI Systems, That Is) | Jenny List | [
"Software Hacks"
] | [
"bios",
"SeaBIOS",
"UEFI"
] | At the dawn of the PC, IBM provided the Basic Input Output System (BIOS). It took care of bringing the machine up, and exposed a series of software hooks for the hardware. Over the years the BIOS and its updated descendants served us well, but as we entered a 64-bit world its limitations began to show.
The replacement ... | 22 | 7 | [
{
"comment_id": "8133203",
"author": "Andrea Campanella",
"timestamp": "2025-05-29T11:25:05",
"content": "Well, time to build a very fast dos pc",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133225",
"author": "imqqmi",
"timestamp": "2025-0... | 1,760,371,531.838323 | ||
https://hackaday.com/2025/05/29/the-cost-of-a-cheap-ups-is-10-hours-and-a-replacement-pcb/ | The Cost Of A Cheap UPS Is 10 Hours And A Replacement PCB | Maya Posch | [
"Repair Hacks",
"Reverse Engineering"
] | [
"home assisstant",
"ups"
] | Recently [Florin] was in the market for a basic uninterruptible power supply (UPS) to provide some peace of mind for the smart home equipment he had stashed around. Unfortunately, the cheap Serioux LD600LI unit he picked up left a bit to be desired, and
required a bit of retrofitting
.
To be fair, the issues that [Flor... | 27 | 8 | [
{
"comment_id": "8133177",
"author": "shinsukke",
"timestamp": "2025-05-29T08:47:47",
"content": "I wish my cheap UPS had a USB port",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133205",
"author": "Nomen Nescio",
"timestamp": "2025-05-29T1... | 1,760,371,531.951964 | ||
https://hackaday.com/2025/05/28/tool-turns-svgs-into-multicolor-3d-prints/ | Tool Turns SVGs Into Multicolor 3D Prints | Donald Papp | [
"3d Printer hacks"
] | [
"3d printed",
"conversion",
"sign",
"stl",
"svg"
] | Want to turn a scaled vector graphic into a multicolor 3D print, like a sign? You’ll want to check out [erkannt]’s
svg2solid
, a web-based tool that reads an SVG and breaks the shapes up by color into individual STL files. Drag those into your slicer (treating them as a single object with multiple parts) and you’re off... | 3 | 2 | [
{
"comment_id": "8133161",
"author": "Duderino",
"timestamp": "2025-05-29T06:56:11",
"content": "“It’s true that most 3D printer software supports the .svg format natively nowadays, but that doesn’t mean a tool like this is obsolete”It really does. This task takes seconds to do in prusaslicer or fre... | 1,760,371,531.884603 | ||
https://hackaday.com/2025/05/28/a-love-letter-to-embedded-systems-by-v-hunter-adams/ | A Love Letter To Embedded Systems By V. Hunter Adams | John Elliot V | [
"Microcontrollers"
] | [
"embedded systems",
"philosophy"
] | Today we’re going to make a little digression from things that we do to look at perhaps
why
we do the things that we do. This one is philosophical folks, so strap yourselves in. We’ve had an interesting item arrive on the tips line from [Bunchabits] who wanted to let us know about a video,
Love Letter to Embedded Syste... | 7 | 4 | [
{
"comment_id": "8133178",
"author": "strawberrymortallyb0bcea48e7",
"timestamp": "2025-05-29T08:56:03",
"content": "HaD should mentionhttps://embeddedonlineconference.com/at least once.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133204",
"autho... | 1,760,371,532.32181 | ||
https://hackaday.com/2025/05/28/invisible-pc-doubles-as-heated-seat/ | Invisible PC Doubles As Heated Seat | Tyler August | [
"computer hacks"
] | [
"chair PC",
"minimalism",
"Office Chair",
"pc"
] | Some people really want a minimalist setup for their computing. In spite of his potentially worrisome housing situation, this was a priority for the man behind [Basically Homeless]: clean lines on the desk. Where does the PC go? You could get an all-in-one, sure, but those use laptop hardware and he wanted the good stu... | 20 | 8 | [
{
"comment_id": "8133089",
"author": "bill gates",
"timestamp": "2025-05-28T23:07:01",
"content": "Great way to keep your balls nice and warm, and get sterile or ball or arse cancer.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133105",
"author": ... | 1,760,371,532.278096 | ||
https://hackaday.com/2025/05/28/from-burnt-to-brilliant-a-toasters-makeover/ | From Burnt To Brilliant: A Toaster’s Makeover | Matt Varian | [
"cooking hacks"
] | [
"reflow oven",
"toaster oven",
"toasters"
] | Appliances fail, but that doesn’t mean it’s the end for them. This
impressive hack
from [solopilot] shows the results possible when not just fixing but also improving upon its original form. The toaster’s failed function selector switch presented an opportunity to add smart features to the function selection and refine... | 26 | 14 | [
{
"comment_id": "8133055",
"author": "Andrew",
"timestamp": "2025-05-28T20:17:21",
"content": "Howdy-doodly-do, how’s it going?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8133058",
"author": "MrFlibble",
"timestamp": "2025-05-28T20:44:06"... | 1,760,371,532.389994 | ||
https://hackaday.com/2025/05/28/floss-weekly-episode-834-it-was-cool-in-2006/ | FLOSS Weekly Episode 834: It Was Cool In 2006 | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"eBPF",
"FLOSS Weekly",
"high performance computing",
"linux"
] | This week Jonathan chats with
Ben Meadors
and
Rob Campbell
about the boatload of software Microsoft just released as Open Source! What’s the motivation, why is the new Edit interesting, and what’s up with Copilot? Watch to find out!
https://github.com/microsoft/edit
https://github.com/microsoft/WSL/issues/1
KDE4 on Win... | 2 | 2 | [
{
"comment_id": "8133130",
"author": "Z",
"timestamp": "2025-05-29T03:58:45",
"content": "TurboVision-based editors were far better. This is a load of M$ crapware, as usual.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8133184",
"author": "Zamorano",
... | 1,760,371,532.432697 | ||
https://hackaday.com/2025/05/28/supercon-2024-using-an-oscilloscope-to-peek-below-the-noise-floor/ | Supercon 2024: Using An Oscilloscope To Peek Below The Noise Floor | Lewin Day | [
"cons",
"Hackaday Columns"
] | [
"2024 Hackaday Superconference",
"lock in amplifier",
"noise floor",
"signal to noise",
"signal to noise ratio"
] | When you’re hunting for a signal with your oscilloscope, the stronger it is, the better. If it’s weak, you might struggle to tease it out from other interference, or even from the noise floor itself. You might wish that you were looking for something more obvious rather than the electromagnetic equivalent of a needle i... | 7 | 3 | [
{
"comment_id": "8133081",
"author": "Johannes Burgel",
"timestamp": "2025-05-28T22:29:12",
"content": "Please stop repeating the “signals below the noise floor” line. It is impossible to reconstruct a signal that’sactuallybelow the noise floor. The microphone analogy explains this quite nicely: The... | 1,760,371,532.47975 | ||
https://hackaday.com/2025/05/28/bubble-displays-make-a-neat-retro-clock/ | Bubble Displays Make A Neat Retro Clock | Jenny List | [
"classic hacks",
"clock hacks"
] | [
"bubble display",
"digital clock",
"ESP32"
] | In 2025 we are spoiled for choice when it comes to displays, with affordable LCDs, OLEDs, TFTs, and e-ink panels of all sizes only a few clicks away. But in decades past, such exotica were not on the menu for casual construction. Instead there were a range of LED seven segment displays which have now largely passed out... | 6 | 2 | [
{
"comment_id": "8133051",
"author": "DirtyDen",
"timestamp": "2025-05-28T19:56:29",
"content": "looks like a bomb",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8133060",
"author": "Paul",
"timestamp": "2025-05-28T20:50:17",
"content": "I get the ... | 1,760,371,532.533435 | ||
https://hackaday.com/2025/05/28/remotely-interesting-stream-gages/ | Remotely Interesting: Stream Gages | Dan Maloney | [
"Engineering",
"Featured",
"Interest",
"Slider"
] | [
"hydrology",
"infrastructure",
"remote",
"river",
"stream monitoring",
"usgs"
] | Near my childhood home was a small river. It wasn’t much more than a creek at the best of times, and in dry summers it would sometimes almost dry up completely. But snowmelt revived it each Spring, and the remains of tropical storms in late Summer and early Fall often transformed it into a raging torrent if only briefl... | 32 | 16 | [
{
"comment_id": "8132951",
"author": "DougM",
"timestamp": "2025-05-28T14:37:57",
"content": "Thank you for this, I’ve often wondered exactly how the data was captured. As a whitewater kayaker I checked the CFS on the river before heading out and there are wonderful prediction sites that will tell ... | 1,760,371,532.613008 | ||
https://hackaday.com/2025/05/27/fixing-a-fatal-genetic-defect-in-babies-with-a-bit-of-genetic-modification/ | Fixing A Fatal Genetic Defect In Babies With A Bit Of Genetic Modification | Maya Posch | [
"Hackaday Columns",
"Science"
] | [
"ammonia",
"CRISPR",
"CRISPR CaS9",
"urea"
] | Genetic defects are exceedingly common, which is not surprising considering just how many cells make up our bodies, including our reproductive cells. While most of these defects have no or only minor effects, some range from serious to fatal. One of these defects is in the CPS1 gene, with those affected facing a shorte... | 30 | 6 | [
{
"comment_id": "8132685",
"author": "Ostracus",
"timestamp": "2025-05-27T17:14:26",
"content": "Amazing thing is the whole organism works as well and long as it does with as few problems.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8132715",
"aut... | 1,760,371,532.685978 | ||
https://hackaday.com/2025/05/27/reconditioning-a-vintage-crt-tube/ | Reconditioning A Vintage CRT Tube | Jenny List | [
"Repair Hacks"
] | [
"Color TV",
"crt",
"CRT TV",
"delta-gun"
] | Plenty of readers will be familiar with CRT televisions, not least because many of us use them with retrocomputers and consoles. But perhaps fewer will have worked with CRTs themselves as components, and of those, fewer still will be familiar with the earlier generation of tubes. In the first few decades of color TV th... | 28 | 8 | [
{
"comment_id": "8132667",
"author": "CJay",
"timestamp": "2025-05-27T16:04:52",
"content": "I’ve seen this done, on the old delta gun arrangement and the newer PIL 90 and 110 degree tubes, it’s a useful new lease of life but the tubes never lasted as long as a new one did, the focus went first whic... | 1,760,371,532.759192 | ||
https://hackaday.com/2025/05/27/hands-on-eufymake-e1-uv-printer/ | Hands-On: EufyMake E1 UV Printer | Tom Nardi | [
"Featured",
"Reviews",
"Tool Hacks"
] | [
"color pcb",
"eufyMake",
"UV printer"
] | The modern hacker and maker has a truly incredible arsenal of tools at their disposal. High-tech tools like 3D printers, laser cutters, and CNC routers have all become commonplace, and combined with old standbys like the drill press and mini lathe, it sometimes seems like we’ve finally peaked in terms of what the indiv... | 50 | 20 | [
{
"comment_id": "8132635",
"author": "Mark Topham",
"timestamp": "2025-05-27T14:54:32",
"content": "“We won’t even get into the fact that all your interactions with the printer have to go through the cloud — there isn’t even so much as a USB port on the printer to allow local control.” – that’s pret... | 1,760,371,533.091795 | ||
https://hackaday.com/2025/05/27/a-forth-os-in-46-bytes/ | A Forth OS In 46 Bytes | Aaron Beckendorf | [
"computer hacks",
"Software Hacks"
] | [
"compilers",
"forth",
"minimalism",
"operating system"
] | It’s not often that we can include an operating system in a Hackaday article, but here’s the full 46-byte source of [Philippe Brochard]’s
10biForthOS
in 8086 opcodes:
50b8 8e00 31d8 e8ff 0017 003c 0575 00ea
5000 3c00 7401 eb02 e8ee 0005 0588 eb47
b8e6 0200 d231 14cd e480 7580 c3f4
Admittedly, this is quite a minimal op... | 27 | 11 | [
{
"comment_id": "8132608",
"author": "Joshua",
"timestamp": "2025-05-27T11:38:32",
"content": "Hi, I think this is more of a basic monitor program at this stage.Next would be adding a debugger, maybe. It’s a start, though! 🙂",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,532.960119 | ||
https://hackaday.com/2025/05/27/automated-blinds-opener-on-the-cheap/ | Automated Blinds Opener On The Cheap | Matt Varian | [
"home hacks"
] | [
"automated blinds",
"magnetic encoder",
"repurpose",
"reuse"
] | We love seeing hacks that involve salvaging parts from what you have on hand to make a new project work, and this project is a great example of that. [Simon], in a quick weekend build, created an
automated blinds opener
using parts he had available.
The project began with the desire to have his blinds open slowly and s... | 7 | 4 | [
{
"comment_id": "8132586",
"author": "shinsukke",
"timestamp": "2025-05-27T08:53:42",
"content": "Mechanical integration is the hardest part. Electronics is easy, you could even use an RC car internals!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8132629"... | 1,760,371,533.310149 | ||
https://hackaday.com/2025/05/26/vintage-intel-8080-runs-on-a-modern-fpga/ | Vintage Intel 8080 Runs On A Modern FPGA | Heidi Ulrich | [
"classic hacks",
"FPGA",
"Microcontrollers",
"PCB Hacks",
"Retrocomputing"
] | [
"8080A-1",
"CM32",
"fpga",
"Intel 8080",
"openocd",
"pcb",
"uart"
] | If you’re into retro CPUs and don’t shy away from wiring old-school voltages,
[Mark]’s latest Intel 8080 build
will surely spark your enthusiasm. [Mark] has built a full system board for the venerable 8080A-1, pushing it to run at a slick 3.125 MHz. Remarkable is that he’s done so using a modern Microchip FPGA, without... | 5 | 3 | [
{
"comment_id": "8133022",
"author": "CityZen",
"timestamp": "2025-05-28T17:29:59",
"content": "When I first read the summary, I thought the 8080 itself was implemented within the FPGA.I didn’t realize that the FPGA was just a support system for an actual 8080.",
"parent_id": null,
"depth": ... | 1,760,371,533.261924 | ||
https://hackaday.com/2025/05/26/a-risc-v-operating-system-instruction-manual/ | A RISC-V Operating System Instruction Manual | Bryan Cockfield | [
"Software Hacks"
] | [
"cornell",
"course",
"educational",
"operating system",
"os",
"RISC-V"
] | To some, an operating system is a burden or waste of resources, like those working on embedded systems and other low-power applications. To others it’s necessary, abstracting away hardware so that higher-level programming can be done. For most people it’s perhaps not thought of at all. But for a few, the operating syst... | 1 | 1 | [
{
"comment_id": "8132699",
"author": "Jii",
"timestamp": "2025-05-27T18:24:32",
"content": "That is interesting. This sounds like something i might read through, not quite yet though.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,371,533.127422 | ||
https://hackaday.com/2025/05/28/washington-consumers-gain-right-to-repair-for-cellphones-and-more/ | Washington Consumers Gain Right To Repair For Cellphones And More | Maya Posch | [
"News",
"Repair Hacks"
] | [
"right to repair"
] | Starting January 1st, 2026, Washington state’s new
Right to Repair law will come into effect.
It requires manufacturers to make tools, parts and documentation available for diagnostics and repair of ‘digital electronics’, including cellphones, computers and similar appliances. The relevant
House Bill 1483
was signed in... | 30 | 9 | [
{
"comment_id": "8132892",
"author": "Rick",
"timestamp": "2025-05-28T11:43:46",
"content": "I think there should be a Right Not to Update Bill. I paid for my computer and its’ operating system. I will decide if and when it will be updated. The bill would have to describe exactly what each update... | 1,760,371,533.376799 | ||
https://hackaday.com/2025/05/28/stamp-modular-breakout-boards-for-smd-prototyping/ | Stamp: Modular Breakout Boards For SMD Prototyping | John Elliot V | [
"hardware",
"PCB Hacks"
] | [
"breadboard",
"kickstarter",
"Sciotronics",
"Stamp breakout boards"
] | [Kalesh Sasidharan] from Sciotronics wrote in to tell us about their project, Stamp: a
modular set of template breakout boards
designed to make prototyping with SMD components faster, easier, and more affordable. No breadboards, custom PCBs, or tangled jumper wires required. The project has blasted past its Kickstarter... | 36 | 13 | [
{
"comment_id": "8132845",
"author": "jpa",
"timestamp": "2025-05-28T08:08:59",
"content": "Alternative:https://github.com/NNNILabs/Manhattan-Adapters-Prototyping-IdeasPerhaps not as neat, but cheap.I usually put the breakouts on an unetched PCB blank, which provides a ground plane. The through-plat... | 1,760,371,533.456857 | ||
https://hackaday.com/2025/05/27/a-100-year-old-electronic-musical-instrument-brought-back-to-life/ | A 100-Year-Old Electronic Musical Instrument Brought Back To Life | Bryan Cockfield | [
"Musical Hacks"
] | [
"disc",
"electricity",
"historical",
"laser",
"luminaphone",
"musical instrument",
"photodiode",
"photoresistor",
"recreation"
] | In the early years of electrification, when electricity was beginning to shape the modern world, this new technology was being put to use in many more places than turning motors and providing lighting. Some things we can see as obvious missteps like electrified corsets marketed as health tonics or x-ray treatments for ... | 35 | 17 | [
{
"comment_id": "8132819",
"author": "macsimki",
"timestamp": "2025-05-28T05:26:16",
"content": "and don’t forget the Optigan, the organ using an exchangable optical disk to generate sound. that is a direct descendant of this device.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,533.531065 | ||
https://hackaday.com/2025/05/27/new-supermaterial-as-strong-as-steel-and-as-light-as-styrofoam/ | New Supermaterial: As Strong As Steel And As Light As Styrofoam | John Elliot V | [
"Science"
] | [
"steel",
"styrofoam",
"supermaterial"
] | Today in material science news we have a report from [German Science Guy] about a new supermaterial which is
as strong as steel and as light as Styrofoam
!
A supermaterial is a type of material that possesses remarkable physical properties, often surpassing traditional materials in strength, conductivity, or other char... | 64 | 18 | [
{
"comment_id": "8132802",
"author": "Kris",
"timestamp": "2025-05-28T02:25:40",
"content": "I’m wondering how risky it could be that the material becomes semi-saturated with water/oil/debris if the skin fails leading to degradation of the performance or even a sudden structural failure.. it might b... | 1,760,371,533.627967 | ||
https://hackaday.com/2025/05/27/look-to-the-sky-with-this-simple-plane-tracker/ | Look To The Sky With This Simple Plane Tracker | Ian Bos | [
"Arduino Hacks"
] | [
"arduino",
"rasberry pi",
"teardown"
] | Do you ever get tired of stressing your neck looking for planes in the sky? Worry not! Here is a neat and cheap Arduino/Ras Pi project to keep your neck sore free! [BANK ANGLE] presents a wonderfully simple
plane tracking system
using an affordable camera and basic microcontrollers.
The bulk of the system relies on a c... | 12 | 4 | [
{
"comment_id": "8132774",
"author": "Andrew",
"timestamp": "2025-05-28T00:03:04",
"content": "Why add an Arduino? Could run the stepper drivers from GPIO.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8132779",
"author": "Bank Angle",
"time... | 1,760,371,533.677171 |
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