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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2025/04/02/70-diy-synths-on-one-webpage/ | 70 DIY Synths On One Webpage | Elliot Williams | [
"ATtiny Hacks",
"Musical Hacks"
] | [
"analog",
"digital",
"echo",
"music from outer space",
"synth-diy",
"synthesizer"
] | If you want to dip your toes into the deep, deep water of synth DIY but don’t know where to start, [Atarity] has just the resource for you. He’s
compiled a list of 70 wonderful DIY synth and noise-making projects and put them all in one place
. And as connoisseurs of the bleepy-bloopy ourselves, we can vouch for his ch... | 14 | 9 | [
{
"comment_id": "8114788",
"author": "Cad the Mad",
"timestamp": "2025-04-02T17:12:07",
"content": "This is absolutely fantastic. Little DIY synths are a hobby of mine and this site has a LOT of designs I haven’t seen before. These kinds of project aggregations and galleries are a great source of in... | 1,760,371,589.391816 | ||
https://hackaday.com/2025/04/02/australias-steady-march-towards-space/ | Australia’s Steady March Towards Space | Lewin Day | [
"Current Events",
"Featured",
"Interest",
"Original Art",
"Slider",
"Space"
] | [
"Australia",
"gilmour space",
"hybrid rocket",
"orbit",
"rocket",
"space program"
] | The list of countries to achieve their own successful orbital space launch is a short one, almost as small as the exclusive club of states that possess nuclear weapons. The Soviet Union was first off the rank in 1957, with the United States close behind in 1958, and a gaggle of other aerospace-adept states followed in ... | 29 | 10 | [
{
"comment_id": "8114731",
"author": "Joshua",
"timestamp": "2025-04-02T14:11:31",
"content": "I’m surprised there’s no article about FRAM2 mussion, especially considering it has amateur radio on board.https://darc-e39.org/allgemein/sstv-event-fram2-fram2ham/",
"parent_id": null,
"depth": 1,... | 1,760,371,589.457807 | ||
https://hackaday.com/2025/04/02/the-lowly-wall-wart-laid-bare/ | The Lowly Wall Wart Laid Bare | Tom Nardi | [
"Art",
"Teardown"
] | [
"digital photography",
"teardown",
"wall wart"
] | Getting a look at the internals of a garden variety “wall wart” isn’t the sort of thing that’s likely to excite the average Hackaday reader. You’ve probably cracked one open yourself, and even if you haven’t, you’ve likely got a pretty good idea of what’s inside that sealed up brick of plastic. But sometimes a teardown... | 18 | 8 | [
{
"comment_id": "8114691",
"author": "Joseph Eoff",
"timestamp": "2025-04-02T11:24:05",
"content": "That article is most certainly a joke, and intended as a joke.The capacitors missing from the PCB are most certainly not intended to form a voltage multiplier. Most likely they are there to reduce sw... | 1,760,371,589.300278 | ||
https://hackaday.com/2025/04/02/a-toothbrush-hacked-in-three-parts/ | A Toothbrush Hacked, In Three Parts | Tom Nardi | [
"hardware",
"Reverse Engineering"
] | [
"firmware",
"openocd",
"spi flash",
"wrongbaud"
] | It’s official, we’re living in the future. Certainly that’s the only explanation for how [wrongbaud] was able to write a three-part series of posts on
hacking a cheap electric toothbrush off of AliExpress
.
As you might have guessed, this isn’t exactly a hack out of necessity. With a flair for explaining hardware hacki... | 9 | 5 | [
{
"comment_id": "8114658",
"author": "Weasel",
"timestamp": "2025-04-02T08:26:25",
"content": "Insert obligatory “when will it run doom?” question here",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114662",
"author": "Kay",
"timestamp": "20... | 1,760,371,589.064559 | ||
https://hackaday.com/2025/04/01/why-the-lm741-sucks/ | Why The LM741 Sucks | Alexander Rowsell | [
"Parts"
] | [
"afrotechmods",
"gain bandwidth product",
"lm741",
"opamp",
"slew rate"
] | First of all, we’d like to give a big shout-out to [Afrotechmods]! After a long hiatus, he has returned to YouTube with an
awesome new video
all about op-amp characteristics, looking at the relatively awful LM741 in particular. His particular way of explaining things has definitely helped many electronics newbies to le... | 80 | 18 | [
{
"comment_id": "8114610",
"author": "pelrun",
"timestamp": "2025-04-02T06:14:34",
"content": "Along similar lines from earlier in the year:https://hackaday.com/2025/01/06/rethinking-your-jellybean-op-amps/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "811461... | 1,760,371,589.648725 | ||
https://hackaday.com/2025/04/01/an-elegant-writer-for-a-more-civilized-age/ | An Elegant Writer For A More Civilized Age | Tom Nardi | [
"Raspberry Pi"
] | [
"distraction free",
"laser cut wood",
"mechanical keyboard",
"Raspberry Pi Zero 2 W",
"writerdeck"
] | One of the most exciting trends we’ve seen over the last few years is the rise of
truly
personal computers — that is, bespoke computing devices that are built by individuals to fit their specific needs or wants. The more outlandish of these builds, often inspired by science fiction and sporting non-traditional layouts,... | 13 | 6 | [
{
"comment_id": "8114579",
"author": "pelrun",
"timestamp": "2025-04-02T03:11:23",
"content": "the Raspberry Pi Zero W 2, which might seem a bit underpoweredThe Zero 2 basically has the same processor as the Pi 3, just with half the ram. Good luck hitting the limit on it with anything that isn’t AI ... | 1,760,371,589.697243 | ||
https://hackaday.com/2025/04/01/a-forgotten-photographic-process-characterised/ | A Forgotten Photographic Process Characterised | Jenny List | [
"classic hacks"
] | [
"19th century photography",
"collodion",
"photography"
] | Early photography lacked the convenience of the stable roll film we all know, and instead relied on a set of processes which the photographer would have to master from film to final print. Photographic chemicals could be flammable or even deadly, and results took a huge amount of work.
The daguerreotype process of usin... | 3 | 3 | [
{
"comment_id": "8114766",
"author": "Chris Maple",
"timestamp": "2025-04-02T16:22:25",
"content": "The cited article is disappointing, giving no clue as to the actual photosensitive chemicals and the process. A little internet searching shows that some historical data is available; that the process... | 1,760,371,589.103063 | ||
https://hackaday.com/2025/04/01/malfunctional-timekeeping-with-the-vetinari-clock/ | Malfunctional Timekeeping With The Vetinari Clock | Lewin Day | [
"clock hacks"
] | [
"clock",
"discworld",
"Vetinari clock"
] | Lord Vetinari from the
Discworld
series is known for many things, but perhaps most of all a clock that doesn’t quite keep continuous time. Instead, it ticks away at random increments to infuriate those that perceive it, whilst keeping regular time over the long term.
[iracigt] decided to whip up a real world version of... | 26 | 12 | [
{
"comment_id": "8114487",
"author": "BotherSaidPooh",
"timestamp": "2025-04-01T20:13:13",
"content": "Should put that one in an exam hall to mess with the ‘Muggles’",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114741",
"author": "iracigt",
... | 1,760,371,589.167711 | ||
https://hackaday.com/2025/04/01/shrinking-blinky-as-far-as-possible/ | Shrinking Blinky As Far As Possible | Lewin Day | [
"Misc Hacks"
] | [
"blink",
"blinky",
"bytes",
"challenge",
"microcontroller",
"storage"
] | Many of us know the basic Blink Arduino sketch, or have coded similar routines on other microcontrollers. Flashing an LED on and off—it doesn’t get much simpler than that. But how big should a blink sketch be? Or more importantly, how small could you get it?
[Artful Bytes] decided to find out.
The specific challenge? “... | 39 | 16 | [
{
"comment_id": "8114460",
"author": "David",
"timestamp": "2025-04-01T18:57:36",
"content": "It’s nice to see people admit that using a microcontroller really is overkill for some tasks.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114467",
"auth... | 1,760,371,589.24216 | ||
https://hackaday.com/2025/04/01/the-everlasting-hunt-for-the-loch-ness-monster/ | The Everlasting Hunt For The Loch Ness Monster | Jenny List | [
"Current Events",
"Featured",
"Interest",
"Slider"
] | [
"cryptozoology",
"Loch Ness Monster",
"underwater photography"
] | When a Loch Ness Monster story appears at the start of April, it pays to check the date on the article just to avoid red faces. But there should be no hoax with this one published on the last day of March, scientists from the UK’s National Oceanography Centre were conducting underwater robotics tests in Scotland’s Loch... | 8 | 5 | [
{
"comment_id": "8114469",
"author": "Louis Poche",
"timestamp": "2025-04-01T19:27:56",
"content": "Weird that only this morning while waiting in line for a coffee ‘boaty mc boatface’ popped into my mind. Then I get to my computer an this article pops up… Either the universe works in very strange wa... | 1,760,371,589.347889 | ||
https://hackaday.com/2025/04/01/philadelphia-maker-faire-returns-this-weekend/ | Philadelphia Maker Faire Returns This Weekend | Tom Nardi | [
"cons",
"News"
] | [
"Philadelphia Maker Faire"
] | While there’s still a vaguely robot-shaped hole in our heart from the loss of the New York World Maker Faire, we do take comfort in the fact that smaller Maker Faire events are still happening all over the world, and some of them have managed to gain quite a bit of momentum over the last few years.
If you’re in the Nor... | 1 | 1 | [
{
"comment_id": "8114456",
"author": "Aaron",
"timestamp": "2025-04-01T18:34:44",
"content": "Our local MakerFaire here in Portland faded away when the pandemic happened. it has since been replaced with the slightly-less ambiguous “Oregon Science Festival”. And while there’s still plenty to see and ... | 1,760,371,589.739434 | ||
https://hackaday.com/2025/04/01/on-egyptian-pyramids-and-why-its-definitely-aliens/ | On Egyptian Pyramids And Why It’s Definitely Aliens | Maya Posch | [
"Featured",
"Fiction",
"History",
"Original Art",
"Slider"
] | [
"april fools",
"no joke",
"power",
"pyramid"
] | History is rather dull and unexciting to most people, which naturally invites exciting flights of fancy that can range from the innocent to outright conspiracies. Nobody truly believes that the astounding finds and (fully functioning) ancient mechanisms in the
Indiana Jones
and
Uncharted
franchises are real, with mostl... | 63 | 26 | [
{
"comment_id": "8114400",
"author": "TG",
"timestamp": "2025-04-01T14:24:34",
"content": "Should just ignore these cranks rambling about granola-powered new age hippie dynamos under the pyramids and just dig up the rest of the Gobekli Tepe complex. And sanction Australia until they stop annihilatin... | 1,760,371,589.972271 | ||
https://hackaday.com/2025/04/01/bringing-achievements-to-the-nintendo-entertainment-system/ | Bringing Achievements To The Nintendo Entertainment System | Lewin Day | [
"Nintendo Hacks"
] | [
"achievements",
"nes",
"nintendo"
] | Microsoft made gaming history when it developed Achievements and released them with the launch of the Xbox 360. They have since become a key component of gaming culture, which similar systems rolling out to the rest of the consoles and even many PC games. [odelot] has the honor of being the one to bring this functional... | 10 | 7 | [
{
"comment_id": "8114354",
"author": "Tony Moncter",
"timestamp": "2025-04-01T12:17:28",
"content": "Interesting project but horrendous text to speech in the video and very little actual info",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114510",
"... | 1,760,371,589.801986 | ||
https://hackaday.com/2025/04/01/hybrid-mechanical-clock-shows-it-both-ways/ | Hybrid Mechanical Clock Shows It Both Ways | Tom Nardi | [
"clock hacks"
] | [
"28BYJ-48",
"3D printed parts",
"ESP32-C6",
"hybrid",
"mechanical clock"
] | After seeing some of the interesting clock builds we’ve featured recently, [shiura] decided to throw their hat in the ring and sent us word about their
incredible 3D printed hybrid clock
that combines analog and digital styles.
While the multiple rotating rings might look complex from the front, the ingenious design be... | 16 | 3 | [
{
"comment_id": "8114325",
"author": "Alexey",
"timestamp": "2025-04-01T09:18:35",
"content": "The idea is amazing! Sad it is not FOSS.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114329",
"author": "BitMage",
"timestamp": "2025-04-01T09:... | 1,760,371,589.857511 | ||
https://hackaday.com/2025/03/31/golang-on-the-ps2/ | Golang On The PS2 | Lewin Day | [
"Playstation Hacks",
"Software Development"
] | [
"code",
"Go",
"golang",
"playstation 2",
"ps2"
] | A great many PlayStation 2 games were coded in C++, and there are homebrew SDKs that let you work in C. However, precious little software for the platform was ever created in Golang. [Ricardo] decided this wouldn’t do, and
set about making the language work with Sony’s best-selling console of all time.
Why program a PS... | 16 | 5 | [
{
"comment_id": "8114303",
"author": "Dave Boyer",
"timestamp": "2025-04-01T06:39:08",
"content": "Do NOT use, support or promote language developed by one of those big-tech monsters with sole purpose of squeezing ever more work out of a software developer; also enabling less qualified to come in an... | 1,760,371,590.493946 | ||
https://hackaday.com/2025/03/31/software-hacks-unlock-cheap-spectrometer/ | Software Hacks Unlock Cheap Spectrometer | Tom Nardi | [
"Software Hacks",
"Tool Hacks"
] | [
"obfuscated",
"reverse engineering",
"spectrometer"
] | A spectrometer is one of those tools that many of us would love to have, but just can’t justify the price of. Sure there are some DIY options out there, but few of them have the convenience or capability of what’s on the commercial market. [Chris] from
Zoid Technology
recently found a portable spectrometer complete wit... | 25 | 10 | [
{
"comment_id": "8114290",
"author": "NFM",
"timestamp": "2025-04-01T03:30:44",
"content": "This is interesting, I could find it useful for measuring the spectral output of LED’s. Especially white ones when building light panels.I wonder if the Android app patch fixes any opsec issues too?",
"pa... | 1,760,371,590.560233 | ||
https://hackaday.com/2025/03/31/a-music-box-commanded-by-nfc-tags/ | A Music Box Commanded By NFC Tags | Lewin Day | [
"Misc Hacks"
] | [
"mp3 player",
"NFC",
"NFC reader"
] | [Luca Dentella] recently encountered a toy, which was programmed to read different stories aloud based on the figurine placed on top. It inspired him to build
an audio device using the same concept
, only with music instead of children’s stories.
The NFC Music Player very much does what it says on the tin. Present it w... | 7 | 2 | [
{
"comment_id": "8114265",
"author": "Cad the Mad",
"timestamp": "2025-04-01T00:23:00",
"content": "This is the third NFC-controlled music player in a week. Not that I’m complaining but it is weird how often this is coming up lately.Now I’m wondering if I should make one for my elderly parents.",
... | 1,760,371,590.21659 | ||
https://hackaday.com/2025/03/31/levitating-lego-generator-runs-on-air/ | Levitating Lego Generator Runs On Air | Lewin Day | [
"Toy Hacks"
] | [
"generator",
"lego",
"radio"
] | [Jamie] decided to build a generator, and Lego is his medium of choice. Thus was created
a fancy levitating generator that turns a stream of air into electricity.
The basic concept is simple enough for a generator—magnets moving past coils to generate electricity. Of course, Lego doesn’t offer high-strength magnetic co... | 4 | 3 | [
{
"comment_id": "8114206",
"author": "a_do_z",
"timestamp": "2025-03-31T20:12:27",
"content": "Must put out a lot of power to run a Stargate, even a small one like that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8114259",
"author": "Billy",
"times... | 1,760,371,590.399855 | ||
https://hackaday.com/2025/03/31/building-a-sliding-tile-clock/ | Building A Sliding Tile Clock | Lewin Day | [
"clock hacks"
] | [
"3d print",
"clock",
"sliding tile"
] | Hackers like making clocks, and we like reporting on them around these parts. Particularly if they’ve got a creative mechanism that we haven’t seen before. This fine timepiece from [gooikerjh] fits the bill precisely—
it’s a sliding tile clock!
The brains of the build is an Arduino Nano ESP32. No, that’s not a typo. It... | 8 | 3 | [
{
"comment_id": "8114208",
"author": "a_do_z",
"timestamp": "2025-03-31T20:17:20",
"content": "I like it.I’ve seen that type of mechanism. I think it was on a little desk calendar. Never thought about making a clock out of them.Now I need to go see how those things work. I’m stuck on something to do... | 1,760,371,590.283683 | ||
https://hackaday.com/2025/03/31/zink-is-zero-ink-sort-of/ | Zink Is Zero Ink — Sort Of | Al Williams | [
"digital cameras hacks",
"Featured",
"Interest"
] | [
"polaroid",
"thermal printer",
"zink"
] | When you think of printing on paper, you probably think of an ink jet or a laser printer. If you happen to think of a thermal printer, we bet you think of something like a receipt printer: fast and monochrome. But in the last few decades, there’s been a family of niche printers designed to print snapshots in color usin... | 37 | 15 | [
{
"comment_id": "8114162",
"author": "a_do_z",
"timestamp": "2025-03-31T17:37:12",
"content": "The CMY temperature driven layering is a slick concept.Did I miss it in somewhere? Where does the black come from? (Assuming paper starts out white).",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,371,590.362888 | ||
https://hackaday.com/2025/03/31/a-snes-cpu-replacement-via-fpga/ | A SNES CPU Replacement Via FPGA | Lewin Day | [
"Nintendo Hacks"
] | [
"cpu",
"nintendo",
"snes"
] | Let’s say you had a SNES with a busted CPU. What would you do? Your SNES would be through! That is, unless, you had a replacement based on an FPGA.
[leonllr] has been developing just such a thing.
The project was spawned out of necessity. [leonllr] had purchased a SNES which was struck down with a dead CPU—in particula... | 17 | 3 | [
{
"comment_id": "8114152",
"author": "Mm",
"timestamp": "2025-03-31T16:08:05",
"content": "Was the Dr. Seuss rhyming on purpose ?! :D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114291",
"author": "Gunplumber",
"timestamp": "2025-04-01T04... | 1,760,371,590.447906 | ||
https://hackaday.com/2025/03/31/keebin-with-kristina-the-one-with-the-leather-keyboard/ | Keebin’ With Kristina: The One With The Leather Keyboard | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"keyboard cleaning",
"keyboard design",
"leather crafting",
"Levels keyboard",
"Secor typewriter"
] | Are you eager to get your feet wet in the keyboard surf, but not quite ready to stand up and ride the waves of designing a full-size board?
You should paddle out with a macro pad instead, and take on the foam face-first and lying down
.
Image by [Robert Feranec] via
Hackaday.IO
Luckily, you have a great instructor in [... | 13 | 7 | [
{
"comment_id": "8114139",
"author": "ozone-101",
"timestamp": "2025-03-31T15:06:14",
"content": "‘canned air’ – is actually green house gas in a can, usually one of the refrigerants that are generally illegal to release from AC systems, but apparently fine to spray out of a can. If you don’t have a... | 1,760,371,590.619689 | ||
https://hackaday.com/2025/03/31/diy-linear-tubular-motor-does-precise-slides/ | DIY Linear Tubular Motor Does Precise Slides | Donald Papp | [
"Parts"
] | [
"linear actuator",
"linear motor",
"magnets",
"motor driver",
"tubular stepper motor"
] | We’ve seen plenty of motor projects, but [Jeremy]’s
DIY Tubular Linear Motor
is a really neat variety of stepper motor in a format we certainly don’t see every day. It started as a design experiment in making a DIY reduced noise, gearless actuator and you can see the result here.
Here’s how it works: the cylindrical se... | 25 | 11 | [
{
"comment_id": "8114103",
"author": "Steven",
"timestamp": "2025-03-31T11:43:11",
"content": "I’ve also been very interested in these motors and finding it hard to find information to DIY the controller. I found the same paper Jeremy used for the physical construction of the motor, but it’s hard to... | 1,760,371,590.686641 | ||
https://hackaday.com/2025/03/31/tiny-bubbles-in-the-memory/ | Tiny Bubbles In The Memory | Al Williams | [
"Retrocomputing",
"Teardown"
] | [
"bubble memory"
] | We are always fascinated by bubble memory. In the late 1970s, this was the “Next Big Thing” that, as you may have guessed, was, in fact, not the next big thing at all. But there were a number of products that used it as non-volatile memory at a time when the alternative was tape or disk. [Smbakeryt] has a cool
word pro... | 16 | 8 | [
{
"comment_id": "8114049",
"author": "H. Linky",
"timestamp": "2025-03-31T08:36:15",
"content": "First link is broken, fyi",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114143",
"author": "Elliot Williams",
"timestamp": "2025-03-31T15:33:36... | 1,760,371,590.737979 | ||
https://hackaday.com/2025/03/30/a-prototyping-board-with-every-connector/ | A Prototyping Board With Every Connector | Jenny List | [
"hardware"
] | [
"prototype board",
"prototyping"
] | Prototyping is a personal affair, with approaches ranging from dead-bug parts on tinplate through stripboard and protoboard, to solderless breadboards and more. Whichever you prefer, a common problem is that they don’t offer much in the way of solid connections to the outside world. You could use break-out boards, or y... | 32 | 14 | [
{
"comment_id": "8114021",
"author": "IIVQ",
"timestamp": "2025-03-31T05:42:35",
"content": "It misses a fuel nozzle! (http://xkcd.com/1406/)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8114040",
"author": "AggregatVier",
"timestamp": "202... | 1,760,371,590.973321 | ||
https://hackaday.com/2025/03/30/reconfigurable-fpga-for-single-photon-measurements/ | Reconfigurable FPGA For Single Photon Measurements | Heidi Ulrich | [
"FPGA"
] | [
"experiment",
"fpga",
"measure",
"photon",
"webinar"
] | Detecting single photons can be seen as the backbone of cutting-edge applications like LiDAR, medical imaging, and secure optical communication. Miss one, and critical information could be lost forever. That’s where FPGA-based instrumentation comes in, delivering picosecond-level precision with zero dead time. If you a... | 6 | 2 | [
{
"comment_id": "8113996",
"author": "moo",
"timestamp": "2025-03-31T02:55:58",
"content": "i’m sure liquid instruments appreciates you reposting their sponsored content. hopefully you’re getting kickbacks at least.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_i... | 1,760,371,590.908229 | ||
https://hackaday.com/2025/03/30/hackaday-links-march-30-2025/ | Hackaday Links: March 30, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"23andMe",
"bankruptcy",
"Cygnus",
"data privacy",
"dragon",
"genetic",
"hackaday links",
"iss",
"model car",
"nasa",
"northrop grumman",
"Plutonium",
"SpaceX",
"trinitite"
] | The hits just keep coming for the International Space Station (ISS), literally in the case of
a resupply mission scheduled for June that is now scrubbed
thanks to a heavy equipment incident that damaged the cargo spacecraft. The shipping container for the Cygnus automated cargo ship NG-22 apparently picked up some dama... | 11 | 3 | [
{
"comment_id": "8113942",
"author": "Eric",
"timestamp": "2025-03-31T00:04:44",
"content": "Plutonium? Wouldn’t it be easier to rip off terrorist and give them a fake bomb full of junk and keep plutonium for his time machine? Or rather his all natural periodic table display?",
"parent_id": null... | 1,760,371,591.019202 | ||
https://hackaday.com/2025/03/29/an-esp32-pomdoro-timer/ | An ESP32 Pomodoro Timer | Jenny List | [
"Lifehacks",
"Microcontrollers"
] | [
"ESP32",
"pomdoro timer",
"productivity"
] | The Pomdoro technique of time management has moved on a little from the tomato-shaped kitchen timer which gave it a name, as [Rukenshia] shows us with
this nifty ESP32 and e-paper design
. It’s relatively simple in hardware terms, being a collection of off-the-shelf modules in a 3D printed case, but the software has a ... | 15 | 5 | [
{
"comment_id": "8113578",
"author": "jenningsthecat",
"timestamp": "2025-03-29T23:23:44",
"content": "There’s an “o” missing there Jenny – it should be “Pomodoro”… :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8113583",
"author": "Pedro",
"timest... | 1,760,371,591.070025 | ||
https://hackaday.com/2025/03/29/amsat-oscar-7-the-ham-satellite-that-refused-to-die/ | AMSAT-OSCAR 7: The Ham Satellite That Refused To Die | Maya Posch | [
"History",
"Space"
] | [
"AMSAT",
"ham radio",
"NiCd",
"OSCAR 7"
] | When the AMSAT-OSCAR 7 (AO-7) amateur radio satellite was launched in 1974, its expected lifespan was about five years. The plucky little satellite made it to 1981 when a battery failure caused it to be written off as dead. Then, in 2002 it came back to life. The prevailing theory being that one of the cells in the sat... | 46 | 11 | [
{
"comment_id": "8113533",
"author": "limroh",
"timestamp": "2025-03-29T20:40:42",
"content": "one of the cells in the satellites NiCd battery pack, … , shorted open“Shorted open”? Is that an accepted technical expression / electrician’s term (in English)?I know fail-safe, failed-closed and -open bu... | 1,760,371,591.419144 | ||
https://hackaday.com/2025/03/29/open-source-framework-aims-to-keep-tidbyt-afloat/ | Open Source Framework Aims To Keep Tidbyt Afloat | Tom Nardi | [
"home hacks",
"Software Hacks"
] | [
"custom firmware",
"HUB75",
"IoT",
"Tidbyt"
] | We recently got a note in the tips line from [Tavis Gustafson], who is one of the developers of Tronbyt — a
replacement firmware and self-hosted backend
that breaks the Tidbyt smart display free from its cloud dependency. When they started the project, [Tavis] says the intent was simply to let privacy-minded users keep... | 10 | 4 | [
{
"comment_id": "8113464",
"author": "Titus431",
"timestamp": "2025-03-29T17:55:48",
"content": "I’d never heard of these before so I checked eBay where they run, used $250 – $500.The third hit in Google shared this painfully hip(ster) 2024 article about this “strange (but wonderful) clock” that ev... | 1,760,371,591.333381 | ||
https://hackaday.com/2025/03/29/contagious-ideas/ | Contagious Ideas | Elliot Williams | [
"classic hacks",
"Hackaday Columns",
"Rants"
] | [
"art",
"idea",
"plotter",
"wall plotter"
] | We ran a story about a wall-mounted plotter bot this week,
Mural
. It’s a simple, but very well implemented, take on a theme that we’ve seen over and over again in various forms. Two lines, or in this case timing belts, hang the bot on a wall, and two motors drive it around. Maybe a servo pulls the pen in and out, but ... | 10 | 7 | [
{
"comment_id": "8113437",
"author": "Charles Springer",
"timestamp": "2025-03-29T15:46:22",
"content": "There was a guy making these, huge ones, in the mid 1980’s West of Palo Alto (along San Gregorio creek? Pescadero?). IIRC he had commercial customers who would do entire walls for places like aut... | 1,760,371,591.509607 | ||
https://hackaday.com/2025/03/29/recreating-the-analog-beauty-of-a-vintage-tektronix-oscillator/ | Recreating The Analog Beauty Of A Vintage Tektronix Oscillator | Dan Maloney | [
"classic hacks",
"Parts"
] | [
"analog",
"fft",
"oscillator",
"sine wave",
"Tek",
"tektronix",
"THD",
"total harmonic distortion"
] | Tektronix must have been quite a place to work back in the 1980s. The company offered a bewildering selection of test equipment, and while the digital age was creeping in, much of their gear was still firmly rooted in the analog world. And some of the engineering tricks the Tek wizards pulled off are still the stuff of... | 11 | 6 | [
{
"comment_id": "8113376",
"author": "Akimmet",
"timestamp": "2025-03-29T11:56:07",
"content": "There are very few JFETs left in production. There are even fewer low noise parts to choose from.I’m happy to see that TI introduced JFE150 and JFE2140 recently.",
"parent_id": null,
"depth": 1,
... | 1,760,371,591.283925 | ||
https://hackaday.com/2025/03/29/how-to-make-a-13-mm-hole-with-a-1-2-drill-bit/ | How To Make A 13 Mm Hole With A 1/2″ Drill Bit | Donald Papp | [
"Tool Hacks"
] | [
"13mm",
"drill",
"resize",
"tin foil"
] | As everyone knows, no matter how many drill bits one owns, one inevitably needs a size that
isn’t
on hand. Well, if you ever find yourself needing to drill a hole that’s precisely 13 mm, here’s a trick from [AvE] to keep in mind for
doing it with a 1/2″ bit
. It’s a hack that only works in certain circumstances, but he... | 75 | 20 | [
{
"comment_id": "8113349",
"author": "El Gru",
"timestamp": "2025-03-29T09:36:00",
"content": "Or just shoot at the hole with a .45 magnum at a slight angle, that would yield a similar useful result.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113383",
... | 1,760,371,591.619151 | ||
https://hackaday.com/2025/03/28/pictures-from-a-high-altitude-balloon/ | Pictures From A High Altitude Balloon | Al Williams | [
"classic hacks",
"Wireless Hacks"
] | [
"high altitude balloon",
"SSTV"
] | How do you get images downlinked from 30 km up? Hams might guess SSTV — slow scan TV — and that’s
the approach [desafloinventor] took
. If you haven’t seen it before (no pun intended), SSTV is a way to send images over radio at a low frame rate. Usually, you get about 30 seconds to 2 minutes per frame.
The setup uses r... | 14 | 7 | [
{
"comment_id": "8113333",
"author": "Nikolaj Møbius",
"timestamp": "2025-03-29T06:58:39",
"content": "Cool project. I see that they use my code from this post:https://hackaday.com/2022/11/20/this-standalone-camera-gets-the-picture-through-with-sstv/Happy flying!",
"parent_id": null,
"depth"... | 1,760,371,591.468289 | ||
https://hackaday.com/2025/03/28/make-diy-conductive-biodegradable-string-right-in-your-kitchen/ | Make DIY Conductive, Biodegradable String Right In Your Kitchen | Donald Papp | [
"chemistry hacks",
"how-to",
"Wearable Hacks"
] | [
"alginate",
"biodegradable",
"conductive",
"dress",
"led",
"pendant",
"wearable"
] | [ombates] shares
a step-by-step method for making a conductive bio-string from scratch
, no fancy equipment required. She demonstrates using it to create a decorative top with touch-sensitive parts, controlling animations on an RGB LED pendant. To top it off, it’s even biodegradable!
The string is an alginate-based bio... | 3 | 2 | [
{
"comment_id": "8113310",
"author": "Then",
"timestamp": "2025-03-29T05:25:42",
"content": "Why is there a usb cable sticking out the orb? Kinda defeats the message?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113389",
"author": "Dan",
"... | 1,760,371,591.662212 | ||
https://hackaday.com/2025/03/28/math-optimized-swedens-maximal-multi-divi/ | Math, Optimized: Sweden’s Maximal Multi-Divi | Heidi Ulrich | [
"classic hacks",
"Retrocomputing"
] | [
"book",
"calculation",
"divi",
"multi-divi",
"multiplication",
"numbers",
"sweden"
] | Back in the early 1900s, before calculators lived in our pockets, crunching numbers was painstaking work. Adding machines existed, but they weren’t exactly convenient nor cheap. Enter Wilken Wilkenson and his Maximal Multi-Divi, a massive multiplication and division table that turned math into an industrialized process... | 30 | 10 | [
{
"comment_id": "8113256",
"author": "WTF Detector",
"timestamp": "2025-03-28T23:11:51",
"content": "“Vilin Vinson”? It says “Wilken Wilkenson”, legibly, right there in the article’s header image.In fact, the only search result for “Vilin Vinson” online is this specific article.I could understand if... | 1,760,371,591.723964 | ||
https://hackaday.com/2025/03/28/an-artificial-sun-in-a-manageable-size/ | An Artificial Sun In A Manageable Size | Jenny List | [
"LED Hacks"
] | [
"artificial sunlight",
"diffuser",
"sunlight"
] | The sun is our planet’s source of natural illumination, and though we’ve mastered making artificial light sources, it remains extremely difficult to copy our nearby star. As if matching the intensity wasn’t enough, its spectral quality, collimation, and atmospheric scattering make it an special challenge. [Victor Pough... | 8 | 6 | [
{
"comment_id": "8113235",
"author": "iliis",
"timestamp": "2025-03-28T20:53:23",
"content": "This very exact project has been high up my todo list for ages! Nicely done.Apart from a higher intensity I suspect you also need LEDs with better color rendering, as a CRI of 95 is actually quite bad still... | 1,760,371,591.81488 | ||
https://hackaday.com/2025/03/28/take-a-little-bit-of-acorn-to-work/ | Take A Little Bit Of Acorn To Work | Jenny List | [
"Retrocomputing"
] | [
"6502",
"BBC Micro",
"embedded computer"
] | When we think of 8-bit computers, it’s natural to start with home computers. That’s where they live on in the collective memory. But a Z80, a 6502, or similar was more likely to be found unseen in a piece of industrial machinery, doing the job for which we’d today reach for a microcontroller. Sometimes these two worlds... | 5 | 2 | [
{
"comment_id": "8113207",
"author": "Kaz",
"timestamp": "2025-03-28T18:49:32",
"content": "Fitting a Beeb on a Eurocard was a fitting thing to do, given that Acorn’s original machines (the System 1 through 5) were all Eurocard machines.The Acorn Atom (immediate predecessor of the Acorn BBC Micro) w... | 1,760,371,591.766735 | ||
https://hackaday.com/2025/03/28/hackaday-podcast-episode-314-its-pi-but-also-pcbs-in-living-color-and-ultrasonic-everything/ | Hackaday Podcast Episode 314: It’s Pi, But Also PCBs In Living Color And Ultrasonic Everything | Dan Maloney | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | It might not be Pi Day anymore, but Elliot and Dan got together for the approximately 100*Pi-th episode of the Podcast to run through the week’s coolest hacks. Ultrasound seemed to be one of the themes, with a deep dive into finding bugs with sonar as well as using sound to cut the cheese — and cakes and pies, too.
The... | 3 | 2 | [
{
"comment_id": "8113163",
"author": "calculus",
"timestamp": "2025-03-28T16:49:54",
"content": "Seems to be the wrong download the zero-calorie mp3 link (goes to ep 306).",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113227",
"author": "Elliot Wil... | 1,760,371,591.860916 | ||
https://hackaday.com/2025/03/28/keep-tabs-on-your-vehicles-needs-with-lubelogger/ | Keep Tabs On Your Vehicle’s Needs With LubeLogger | Tom Nardi | [
"Software Hacks",
"Transportation Hacks"
] | [
"car maintenance",
"self hosting",
"web based"
] | It doesn’t matter if its a Vespa or a Peterbilt truck — if you ignore the maintenance needs of your vehicle, you do so at your own peril. But it can be difficult enough to keep track of basic oil changes, to say nothing of keeping records on what parts were changed when. Instead of cramming more receipts into your glov... | 21 | 10 | [
{
"comment_id": "8113151",
"author": "Stanl Lee",
"timestamp": "2025-03-28T16:17:00",
"content": "Sounds like checking a cow if its pregnant.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8113157",
"author": "rclark",
"timestamp": "2025-03-28T16:30:55... | 1,760,371,592.073017 | ||
https://hackaday.com/2025/03/28/this-week-in-security-ingressnightmare-nextjs-and-leaking-dna/ | This Week In Security: IngressNightmare, NextJS, And Leaking DNA | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"23andMe",
"IngressNightmare",
"NextJS",
"This Week in Security"
] | This week, researchers from Wiz Research
released a series of vulnerabilities
in the Kubernetes Ingress NGINX Controller that, when chained together, allow an unauthorized attacker to completely take over the cluster. This attack chain is known as IngressNightmare, and it affected over 6500+ Kubernetes installs on the... | 9 | 5 | [
{
"comment_id": "8113125",
"author": "M",
"timestamp": "2025-03-28T14:14:34",
"content": "Fun fact: 23and me is NOT covered by HIPPA. They’re a direct-to-consumer service, not healthcare as defined in the law. The only thing they have to abide by is their ever-changing privacy policy.",
"parent_... | 1,760,371,592.889393 | ||
https://hackaday.com/2025/03/27/supercon-2024-yes-you-can-use-the-controller-area-network-outside-of-cars/ | Supercon 2024: Yes, You Can Use The Controller Area Network Outside Of Cars | Lewin Day | [
"cons",
"Hackaday Columns",
"Slider"
] | [
"2024 Hackaday Superconference",
"Bosch",
"CAN",
"can-bus"
] | Ah, the CAN bus. It’s become a communication standard in the automotive world, found in a huge swathe of cars built from the mid-1990s onwards. You’ll also find it in aircraft, ships, and the vast majority of modern tractors and associated farm machines, too.
As far as [Randy Glenn] is concerned, though, the CAN bus do... | 21 | 11 | [
{
"comment_id": "8112870",
"author": "smellsofbikes",
"timestamp": "2025-03-27T17:10:51",
"content": "FWIW there are also level-shifting CAN transceivers, if you need to have the CAN bus a different voltage than some of the nodes, which is very convenient. Some CAN transceivers can use arbitrary vo... | 1,760,371,592.595589 | ||
https://hackaday.com/2025/03/27/custom-slimline-cd-player-hides-out-under-speaker/ | Custom Slimline CD Player Hides Out Under Speaker | Tom Nardi | [
"digital audio hacks"
] | [
"audio cd",
"cd drive",
"ir receiver",
"vlc",
"wireless speaker"
] | In the era of digital streaming, the market is full of wireless speakers that will play content from your smartphone or pull it down from the Internet directly over WiFi. But if you’re feeling a bit nostalgic and want to throw on one of your old CDs, well, you might have a problem. That’s the situation [Chad Boughton] ... | 10 | 4 | [
{
"comment_id": "8112857",
"author": "Steven-X",
"timestamp": "2025-03-27T16:17:53",
"content": "I just acquired a HP laptop CD drive from our E_Waste bin at work (they let me raid it from time to time) so maybe this article will inspire a project!",
"parent_id": null,
"depth": 1,
"repli... | 1,760,371,592.431247 | ||
https://hackaday.com/2025/03/27/general-fusion-claims-success-with-magnetized-target-fusion/ | General Fusion Claims Success With Magnetized Target Fusion | Maya Posch | [
"Current Events",
"Featured",
"Science",
"Slider"
] | [
"nuclear fusion"
] | It’s rarely appreciated just how much more complicated nuclear fusion is than nuclear fission. Whereas the latter involves a process that happens all around us without any human involvement, and where the main challenge is to keep the nuclear chain reaction within safe bounds, nuclear fusion means making atoms do somet... | 21 | 8 | [
{
"comment_id": "8112839",
"author": "Pat",
"timestamp": "2025-03-27T15:24:38",
"content": "“which is an electrostatic interaction that normally prevents atoms from approaching each other and even spontaneously fusing. In stars, the process of nucleosynthesis is enabled by the intense pressures due ... | 1,760,371,592.342707 | ||
https://hackaday.com/2025/03/27/chase-light-sao-shouldnt-have-used-a-555-and-didnt/ | Chase Light SAO Shouldn’t Have Used A 555, And Didn’t | Dan Maloney | [
"classic hacks",
"LED Hacks"
] | [
"2025 Hackaday Europe",
"chaser",
"mask",
"sao"
] | Around these parts, projects needlessly using a microcontroller where a simpler design would do are often derided with the catch-all “Should have used a 555,” even if the venerable timer chip wouldn’t have been the ideal solution. But the sentiment stands that a solution more complicated than it needs to be is probably... | 13 | 5 | [
{
"comment_id": "8112785",
"author": "strawberrymortallyb0bcea48e7",
"timestamp": "2025-03-27T11:52:25",
"content": "Berlin sign should point left.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8112794",
"author": "Mark Topham",
"timestamp":... | 1,760,371,592.532138 | ||
https://hackaday.com/2025/03/27/pi-pico-turns-atari-2600-into-a-lo-fi-photo-frame/ | Pi Pico Turns Atari 2600 Into A Lo-fi Photo Frame | Jenny List | [
"Microcontrollers",
"Retrocomputing"
] | [
"atari",
"photo frame",
"pi pico"
] | The cartridge based game consoles of decades ago had a relatively simple modus operandi — they would run a program stored in a ROM in the cartridge, and on the screen would be the game for the enjoyment of the owner. This made them simple in hardware terms, but for hackers in the 2020s, somewhat inflexible. The Atari 2... | 7 | 4 | [
{
"comment_id": "8112802",
"author": "alnwlsn",
"timestamp": "2025-03-27T12:47:21",
"content": "Reminds me very much of Tom7’s “Reverse Emulation” for the NES:https://www.youtube.com/watch?v=ar9WRwCiSr0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8112805",
... | 1,760,371,592.479453 | ||
https://hackaday.com/2025/03/26/why-are-micro-center-flash-drives-so-slow/ | Why Are Micro Center Flash Drives So Slow? | Maya Posch | [
"Reverse Engineering",
"Teardown"
] | [
"flash drive"
] | Every year, USB flash drives get cheaper and hold more data. Unfortunately, they don’t always get faster. The reality is, many USB 3.0 flash drives aren’t noticeably faster than their USB 2.0 cousins, as [Chase Fournier] found with the ultra-cheap specimens purchased over at his local Micro Center store.
Although these... | 45 | 21 | [
{
"comment_id": "8112683",
"author": "aki009",
"timestamp": "2025-03-27T05:05:27",
"content": "The quality of the firmware also varies widely. I’ve seen some real abominations over the years.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113115",
"... | 1,760,371,592.721803 | ||
https://hackaday.com/2025/03/26/fitting-a-spell-checker-into-64-kb/ | Fitting A Spell Checker Into 64 KB | Bryan Cockfield | [
"computer hacks"
] | [
"algorithm",
"bloom filter",
"compression",
"hash",
"memory",
"spell check",
"unix"
] | By some estimates, the English language contains over a million unique words. This is perhaps overly generous, but even conservative estimates generally put the number at over a hundred thousand. Regardless of where the exact number falls between those two extremes, it’s certainly many more words than could fit in the ... | 16 | 8 | [
{
"comment_id": "8112710",
"author": "WTF Detector",
"timestamp": "2025-03-27T07:13:08",
"content": "What does this have to do with the article at all?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8112792",
"author": "Winston",
"timestamp": "2025-03-... | 1,760,371,592.645592 | ||
https://hackaday.com/2025/03/30/help-propel-the-original-arm-os-into-the-future/ | Help Propel The Original ARM OS Into The Future | Jenny List | [
"Software Development"
] | [
"arm",
"operating system",
"RiscOS"
] | We use ARM devices in everything from our microcontroller projects to our laptops, and many of us are aware of the architecture’s humble beginnings in a 1980s Acorn Archimedes computer. ARM processors are not the only survivor from the Archimedes though, its operating system has made it through the decades as well.
RIS... | 33 | 8 | [
{
"comment_id": "8113903",
"author": "M",
"timestamp": "2025-03-30T21:08:33",
"content": "without support for memory protection, there’s a pretty low ceiling to the level of software complexity I’m willing to develop and support on it as a platform. without memory protection it becomes impossible to... | 1,760,371,592.840441 | ||
https://hackaday.com/2025/03/30/protocol-analyzer-remembered/ | Protocol Analyzer Remembered | Al Williams | [
"classic hacks",
"Retrocomputing"
] | [
"protocol analyzer",
"rs232",
"test equipment"
] | Anyone will tell you that as hard as it is to create a working system, the real trick is making two systems talk to each other, especially if you created only one or none of them. That’s why tools that let you listen in on two systems talking are especially valuable.
If you were a well-funded lab back in the RS232 days... | 22 | 8 | [
{
"comment_id": "8113830",
"author": "LookAtDaShinyShiny",
"timestamp": "2025-03-30T17:15:04",
"content": "this reminded me of the interfaker…https://www.worthpoint.com/worthopedia/vintage-interfaker-mt25-iv-rs232-242317684",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,371,592.778254 | ||
https://hackaday.com/2025/03/30/can-hackers-bring-jooki-back-to-life/ | Can Hackers Bring Jooki Back To Life? | Tom Nardi | [
"digital audio hacks",
"Toy Hacks"
] | [
"bankruptcy",
"jooki",
"obsolescence",
"root access",
"smart speaker"
] | Another day, another Internet-connected gadget that gets abandoned by its creators. This time it’s Jooki — a screen-free audio player that let kids listen to music and stories by placing specific tokens on top of it. Parents would use a smartphone application to program what each token would do, and that way even very ... | 16 | 5 | [
{
"comment_id": "8113786",
"author": "CJay",
"timestamp": "2025-03-30T15:19:14",
"content": "More proof that the S in IoT stands for security.Nice to see yet another cloud based service collapse and leave the users high n dry too",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,594.522635 | ||
https://hackaday.com/2025/03/30/automatically-crack-safes-with-this-autodialer/ | Automatically Crack Safes With This Autodialer | Bryan Cockfield | [
"Security Hacks"
] | [
"arduino",
"autodialer",
"combination",
"safe",
"safe cracking",
"security",
"stepper motor"
] | When attempting to secure something, whether it’s a computer, sensitive data, or valuables, there’s always going to be a way to break that security. It might be impossibly hard, like taking centuries to brute-force an encryption algorithm, but it’s weakness is still there. And, like the future might make certain encryp... | 13 | 5 | [
{
"comment_id": "8113738",
"author": "Jan-Willem Markus",
"timestamp": "2025-03-30T12:42:16",
"content": "Congrats to [Startup Chuck] to making an auto dialer and improving it to the point where it works in the real world. These projects interest me as it shows how security evolves. It’s also a lock... | 1,760,371,594.860408 | ||
https://hackaday.com/2025/03/30/chip-glitching-101-with-hash/ | Chip Glitching 101 With [Hash] | Dan Maloney | [
"Reverse Engineering"
] | [
"chip whisperer",
"glitching",
"GPNVM",
"SAM4C32",
"smart meter",
"vector",
"vulberability",
"zero-day"
] | Ever want to get into reverse engineering but don’t know where to start? You’re in luck — [Hash] just dropped
a case study in chip glitching
that should get you off on the right foot.
The object of this reverse engineering effort in the video below is a Microchip SAM4C32C, removed from one of the many smart electrical ... | 4 | 2 | [
{
"comment_id": "8113701",
"author": "alialiali",
"timestamp": "2025-03-30T09:12:53",
"content": "I’ve always wanted to get into this great video!It blows my mind to this day all the kids with reset glitch hacked Xboxes without realising the insanity of the engineering that went into them.",
"pa... | 1,760,371,594.813259 | ||
https://hackaday.com/2025/03/29/yaydio-a-music-player-for-kids/ | Yaydio, A Music Player For Kids | Jenny List | [
"digital audio hacks",
"Toy Hacks"
] | [
"mp3",
"music player",
"NFC"
] | Music consumption has followed a trend over the last decade or more of abandoning physical media for online or streaming alternatives. This can present a problem for young children however, for whom a simpler physical interface may be an easier way to play those tunes. Maintaining a library of CDs is not entirely conve... | 6 | 4 | [
{
"comment_id": "8113732",
"author": "Grant",
"timestamp": "2025-03-30T11:51:09",
"content": "This is literally a clone of the yoto player.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113798",
"author": "Sebastian",
"timestamp": "2025-03-... | 1,760,371,594.618519 | ||
https://hackaday.com/2025/03/29/diy-split-keyboard-made-with-a-saw/ | DIY Split Keyboard Made With A Saw | Maya Posch | [
"Peripherals Hacks"
] | [
"split keyboard"
] | Split keyboards are becoming more popular, but because they’re still relatively niche, they can be rather expensive if you want to buy one. So why not make your own? Sure, you could assemble one from a kit, but why not take a cheap mechanical keyboard, slice it in half and just
waves hands
connect the two halves back t... | 23 | 10 | [
{
"comment_id": "8113645",
"author": "Olivier",
"timestamp": "2025-03-30T02:12:36",
"content": "Hah, nicely done 👍😁",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8113684",
"author": "IIVQ",
"timestamp": "2025-03-30T07:59:59",
"content": "I wonde... | 1,760,371,594.774977 | ||
https://hackaday.com/2025/03/28/dwingeloo-to-venus-report-of-a-successful-bounce/ | Dwingeloo To Venus: Report Of A Successful Bounce | Heidi Ulrich | [
"News",
"Radio Hacks",
"Science"
] | [
"dwingeloo",
"signal",
"telescope",
"transmission",
"venus"
] | Radio waves travel fast, and they can bounce, too. If you are able to operate a 25-meter dish, a transmitter, a solid software-defined radio, and an atomic clock, the answer is: yes, they can go all the way to Venus and back. On March 22, 2025, the Dwingeloo telescope in the Netherlands successfully pulled off an Earth... | 14 | 6 | [
{
"comment_id": "8113079",
"author": "strawberrymortallyb0bcea48e7",
"timestamp": "2025-03-28T12:00:44",
"content": "What about FCC and upsetting satellites?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113095",
"author": "Dave M",
"timest... | 1,760,371,594.986201 | ||
https://hackaday.com/2025/03/28/scanning-film-the-way-it-was-meant-to-be/ | Scanning Film The Way It Was Meant To Be | Jenny List | [
"digital cameras hacks",
"LED Hacks"
] | [
"film scan",
"rgb",
"scan light"
] | Scanning a film negative is as simple as holding it up against a light source and photographing the result. But should you try such a straightforward method with color negatives it’s possible your results may leave a little to be desired. White LEDs have a spectrum which
looks
white to our eyes, but which doesn’t quite... | 37 | 13 | [
{
"comment_id": "8113061",
"author": "Josiah David Gould",
"timestamp": "2025-03-28T10:54:33",
"content": "It’s a great idea, and simple to change around for different film stock if you need different wavelengths. Could go whole-hog and make the LEDs individually addressable to take a set of single ... | 1,760,371,594.936802 | ||
https://hackaday.com/2025/03/27/aqmood-is-an-air-quality-monitor-with-an-attitude/ | AqMood Is An Air Quality Monitor With An Attitude | Tom Nardi | [
"home hacks",
"LED Hacks"
] | [
"addressable leds",
"air quality",
"emoji",
"environmental monitor"
] | You take your air quality seriously, so shouldn’t your monitoring hardware? If you’re breathing in nasty VOCs or dust, surely a little blinking LED isn’t enough to express your displeasure with the current situation. Luckily,
[Tobias Stanzel] has created the AqMood
to provide us with some much-needed anthropomorphic en... | 0 | 0 | [] | 1,760,371,594.463474 | ||
https://hackaday.com/2025/03/27/half-the-reflow-oven-you-expected/ | Half The Reflow Oven You Expected | Jenny List | [
"Tool Hacks"
] | [
"ESP32",
"reflow oven",
"toaster oven"
] | Toaster oven reflow projects are such a done deal that there should be nothing new in one here in 2025. Take a toaster oven, an Arduino, and a thermocouple, and bake those boards! But [Paul J R]
has found a new take on an old project
, and better still, he’s found the most diminutive of toaster ovens from the Australia... | 17 | 5 | [
{
"comment_id": "8112997",
"author": "scott_tx",
"timestamp": "2025-03-28T02:16:08",
"content": "My reflow oven is my hand on the temp knob and my eyes on the thermal probe readout. on….off….on….off…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8113000",
... | 1,760,371,594.577431 | ||
https://hackaday.com/2025/03/27/an-inexpensive-way-to-break-down-plastic/ | An Inexpensive Way To Break Down Plastic | Bryan Cockfield | [
"green hacks"
] | [
"catalyst",
"monomer",
"pet",
"plastic",
"polymer",
"recycling"
] | Plastic has been a revolutionary material over the past century, with an uncountable number of uses and an incredibly low price to boot. Unfortunately, this low cost has led to its use in many places where other materials might be better suited, and when this huge amount of material breaks down in the environment it ca... | 11 | 7 | [
{
"comment_id": "8113028",
"author": "Dude",
"timestamp": "2025-03-28T06:58:32",
"content": "The biggest challenge in recycling plastics in this manner is that the catalysts are somewhat selective or fouled by chemicals other than the intended plastic, so the feedstock needs to be clean and devoid o... | 1,760,371,594.421094 | ||
https://hackaday.com/2025/03/27/inside-a-fake-wifi-repeater/ | Inside A Fake WiFi Repeater | Maya Posch | [
"Teardown"
] | [
"fake hardware",
"teardown",
"wifi repeater"
] | Fake WiFi repeater with a cheap real one behind it. (Credit: Big Clive, YouTube)
Over the years we have seen a lot of fake electronics, ranging from fake power saving devices that you plug into an outlet, to fake car ECU optimizers that you stick into the OBD port. These are all similar in that they fake functionality ... | 29 | 7 | [
{
"comment_id": "8112919",
"author": "Chr El",
"timestamp": "2025-03-27T20:18:46",
"content": "The placebo effect is still an effect!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113132",
"author": "Eric",
"timestamp": "2025-03-28T14:51:23... | 1,760,371,595.059732 | ||
https://hackaday.com/2025/03/27/your-badminton-racket-needs-restringing-theres-a-diy-machine-for-that/ | Your Badminton Racket Needs Restringing? There’s A DIY Machine For That | Elliot Williams | [
"cnc hacks"
] | [] | We don’t often get our badminton rackets restrung, but if we did,
[kuokuo702]’s PicoBETH project
would be where we’d turn. This is a neat machine build for a
very
niche application, but it’s also a nicely elaborated project with motors, load cells, and even a sweet knobby-patterned faceplate that is certainly worth a l... | 4 | 2 | [
{
"comment_id": "8113051",
"author": "strawberrymortallyb0bcea48e7",
"timestamp": "2025-03-28T09:44:35",
"content": "Badmington… :D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8113229",
"author": "Elliot Williams",
"timestamp": "2025-03-28... | 1,760,371,595.364877 | ||
https://hackaday.com/2025/03/26/integrated-bms-makes-battery-packs-easy/ | Integrated BMS Makes Battery Packs Easy | Bryan Cockfield | [
"Battery Hacks"
] | [
"battery",
"battery management",
"bms",
"lithium battery",
"lithium iron phosphate",
"pcb"
] | [Editor’s note: The hacker requested that we remove the image for legal reasons, so it’s blurry now. We hope all’s well!]
Lithium technology has ushered in a new era of batteries with exceptionally high energy density for a reasonably low cost. This has made a lot possible that would have been unheard of even 20 years ... | 40 | 11 | [
{
"comment_id": "8112625",
"author": "juli",
"timestamp": "2025-03-26T23:11:00",
"content": "I woukd to see this for 18650.A Pcb bms to plug the battery directly for 4s or more",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8112741",
"author": "CallM... | 1,760,371,595.477828 | ||
https://hackaday.com/2025/03/26/3d-printed-scanner-automates-deck-management-for-trading-card-gamers/ | 3D-Printed Scanner Automates Deck Management For Trading Card Gamers | Dan Maloney | [
"Misc Hacks"
] | [
"magic the gathering",
"paper handling",
"scanner",
"TCG",
"trading card game"
] | Those who indulge in trading card games know that building the best deck is the key to victory. What exactly that entails is a mystery to us muggles, but keeping track of your cards is a vital part of the process, one that
this DIY card scanner
(original German;
English translation
) seeks to automate.
At its heart, [F... | 12 | 4 | [
{
"comment_id": "8112592",
"author": "Chris Pepin",
"timestamp": "2025-03-26T20:38:16",
"content": "Props to the video maker who actually included shots of the device running at the BEGINNING of the video, instead of buried somewhere near the end!",
"parent_id": null,
"depth": 1,
"replie... | 1,760,371,595.322117 | ||
https://hackaday.com/2025/03/26/floss-weekly-episode-826-fedora-42-and-kde/ | FLOSS Weekly Episode 826: Fedora 42 And KDE | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"fedora",
"FLOSS Weekly",
"kde"
] | This week,
Jonathan Bennett
chats with
Neal Gompa
about Fedora 42 and KDE! What’s new, what’s coming, and why is flagship status such a big deal?
Website:
https://neal.gompa.dev/
GitHub Sponsors:
https://github.com/sponsors/Conan-Kudo
Neal’s business (Velocity Limitless):
https://velocitylimitless.com/
Neal’s podcast (... | 3 | 2 | [
{
"comment_id": "8112584",
"author": "Garth Wilson",
"timestamp": "2025-03-26T20:07:29",
"content": "I sure don’t like KDE, and every time I have a Linux update, I have my son put Gnome Flashback Compiz back on.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,371,595.405677 | ||
https://hackaday.com/2025/03/26/supercon-2024-a-new-world-of-full-color-pcbs/ | Supercon 2024: A New World Of Full-Color PCBs | Lewin Day | [
"cons",
"Featured",
"PCB Hacks",
"Slider"
] | [
"2024 Hackaday Supercon",
"color pcb",
"pcb"
] | Printed circuit boards were once so simple. One or two layers of copper etched on a rectangular fiberglass substrate, with a few holes drilled in key locations so components could be soldered into place. They were functional objects, nothing more—built only for the sake of the circuit itself.
Fast forward to today, and... | 12 | 9 | [
{
"comment_id": "8112542",
"author": "BrightBlueJim",
"timestamp": "2025-03-26T18:13:12",
"content": "Except that it’s art, which means maybe it doesn’t go obsolete..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8112544",
"author": "Clara Hobbs",
"ti... | 1,760,371,595.53538 | ||
https://hackaday.com/2025/03/26/teardown-of-casio-credit-card-sized-radio/ | Teardown Of Casio Credit Card-Sized Radio | Maya Posch | [
"Teardown"
] | [
"casio",
"radio receiver",
"teardown"
] | These days we don’t get too fussed about miniaturized electronics, not when you can put an entire processor and analog circuitry on a chip the size of a grain of sand. Things were quite different back in the 1980s, with the idea of a credit card-sized radio almost preposterous. This didn’t stop the engineers over at Ca... | 33 | 9 | [
{
"comment_id": "8112501",
"author": "Basti",
"timestamp": "2025-03-26T15:45:18",
"content": "the super thin adjustable capacitor is interesting",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8112536",
"author": "Then",
"timestamp": "2025-03-... | 1,760,371,595.658307 | ||
https://hackaday.com/2025/03/26/tech-in-plain-sight-hearing-aids/ | Tech In Plain Sight: Hearing Aids | Al Williams | [
"Hackaday Columns",
"History",
"Medical Hacks",
"Slider"
] | [
"hearing aid"
] | You might think you don’t need a hearing aid, and you might be right. But in general, hearing loss eventually comes to all of us. In fact, you progressively lose hearing every year, which is why kids can have high-pitched ringtones their parents can’t hear.
You’d think hearing aids would be pretty simple, right? After ... | 38 | 16 | [
{
"comment_id": "8112494",
"author": "BT",
"timestamp": "2025-03-26T15:11:21",
"content": "British comedian Eric Sykes often appeared on TV and in films wearing glasses with no lenses – that’s because he became profoundly deaf as an adult and his glasses fames contained an early bone-conducting hear... | 1,760,371,595.797272 | ||
https://hackaday.com/2025/03/26/build-customized-raspberry-pi-os-images-with-rpi-image-gen/ | Build Customized Raspberry Pi OS Images With Rpi-image-gen | Maya Posch | [
"Raspberry Pi",
"Software Hacks"
] | [
"Raspberry Pi OS"
] | Recently Raspberry Pi publicly
announced the release
of their new
rpi-image-gen
tool, which is advertised as making custom Raspberry Pi OS (i.e. Debian for specific Broadcom SoCs) images in a much more streamlined fashion than with the existing
rpi-gen
tool, or with third-party solutions. The general idea seems to be t... | 21 | 6 | [
{
"comment_id": "8112433",
"author": "ono",
"timestamp": "2025-03-26T11:59:50",
"content": "I wonder how does this thing fares in comparison to buildroot or yocto …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8112438",
"author": "RoganDawes",
"times... | 1,760,371,595.587662 | ||
https://hackaday.com/2025/03/26/admit-it-you-want-this-go-kart/ | Admit It. You Want This Go-Kart | Jenny List | [
"Transportation Hacks"
] | [
"electric go cart",
"go-kart",
"ride on"
] | Many of us could have been lucky enough to have some form of pedal go-kart in our formative years, and among such lucky children there can have been few who did not wish for their ride to have a little
power
. Zipping around the neighborhood remained a strenuous affair though, particularly for anyone whose hometown was... | 17 | 9 | [
{
"comment_id": "8112392",
"author": "paul shallard",
"timestamp": "2025-03-26T09:01:55",
"content": "yes I do want this, I admit itbut I have some concerns for children that might drive this on the road or footpathassuming this has a range of 4 kilometres or more, and a top speed of 10-15 kph, thi... | 1,760,371,595.718724 | ||
https://hackaday.com/2025/03/25/designing-a-portable-mac-mini/ | Designing A Portable Mac Mini | Lewin Day | [
"Mac Hacks"
] | [
"mac mini",
"macintosh",
"macintosh mini"
] | When Apple first launched the Macintosh, it created a new sort of “Lunchbox” form factor that was relatively portable and very, very cool. Reminiscent of that is this neat portable Macintosh Mini,
created by [Scott Yu-Jan].
[Scott] has created something along these lines before—putting an iPad dock on top of a Macintos... | 8 | 4 | [
{
"comment_id": "8112377",
"author": "boondaburrah",
"timestamp": "2025-03-26T08:16:18",
"content": "[Scott] notes that it’s cool, but not exactly practical—it weighs seven pounds, mostly due to the weight of the heavy power bank.Yeah well considering that it’s less than half of the weight of the Ma... | 1,760,371,595.940225 | ||
https://hackaday.com/2025/03/25/physical-key-copying-starts-with-a-flipper-zero/ | Physical Key Copying Starts With A Flipper Zero | Dan Maloney | [
"lockpicking hacks"
] | [
"duplicating",
"flipper zero",
"lock picking",
"locksports",
"pen testing"
] | A moment’s inattention is all it takes to gather the information needed to make a physical copy of a key. It’s not necessarily an easy process, though, so if pen testing is your game, something like
this Flipper Zero key copying toolchain
can make the process quicker and easier when the opportunity presents itself.
Of ... | 26 | 10 | [
{
"comment_id": "8112338",
"author": "Cody",
"timestamp": "2025-03-26T05:40:47",
"content": "You don’t even need the flipper zero or 3d printer for this. All you need is a picture of the key, a blank, and a file. There is only about half a dozen or so bitting depths for a key. You can decode them an... | 1,760,371,596.014736 | ||
https://hackaday.com/2025/03/25/brazilian-modders-upgrade-nvidia-geforce-gtx-970-to-8-gb-of-vram/ | Brazilian Modders Upgrade NVidia Geforce GTX 970 To 8 GB Of VRAM | Maya Posch | [
"computer hacks"
] | [
"NVIDIA",
"vram"
] | Although NVidia’s current disastrous RTX 50-series is getting all the attention right now, this wasn’t the first misstep by NVidia. Back in 2014 when NVidia released the GTX 970 users were quickly dismayed to find that their ‘4 GB VRAM’ GPU had actually just 3.5 GB, with the remaining 512 MB being used in a much slower... | 24 | 5 | [
{
"comment_id": "8112267",
"author": "D",
"timestamp": "2025-03-25T23:18:06",
"content": "This is fun, but wake me up when someone successfully applies the technique to modern cards so you can mod a budget GPU to have 24+ gb ram to self-host big LLMs.",
"parent_id": null,
"depth": 1,
"re... | 1,760,371,596.082295 | ||
https://hackaday.com/2025/03/25/led-filaments-become-attractive-time-piece/ | LED Filaments Become Attractive Time Piece | Lewin Day | [
"LED Hacks"
] | [
"clock",
"led",
"LED filament"
] | There are a million ways to use LEDs to make a clock. [sjm4306] chose to go a relatively conventional route, making something that approximates a traditional analog timepiece.
However, he did it using LED filaments to create a striking and unique design
.
Thus the name—FilamenTIME!
LED filaments are still relatively ne... | 39 | 9 | [
{
"comment_id": "8112248",
"author": "Halogenek",
"timestamp": "2025-03-25T21:45:56",
"content": "Ok… That’s a cool clock. Never seen this idea before.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8112270",
"author": "Halogenek",
"timestamp... | 1,760,371,596.219376 | ||
https://hackaday.com/2025/03/25/the-vectrex-home-computer-you-never-had/ | The Vectrex Home Computer You Never Had | Jenny List | [
"Retrocomputing"
] | [
"home computer",
"vapourware",
"vectrex"
] | The Vectrex console from the early 1980s holds a special place in retrocomputing lore thanks to its vector display — uniquely for a home system, it painted its graphics to the screen by drawing them with an electron beam, instead of scanning across a raster as a TV screen would. It thus came with its own CRT, and a dis... | 15 | 8 | [
{
"comment_id": "8112200",
"author": "TheJBW",
"timestamp": "2025-03-25T17:36:03",
"content": "Can anyone elaborate on what a “wafer drive” (or in the article “Software for the computer is made on wafer-tapes”) is?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id... | 1,760,371,596.143921 | ||
https://hackaday.com/2025/03/25/ancient-pocket-computer-gets-a-serious-serial-upgrade/ | Ancient Pocket Computer Gets A Serious Serial Upgrade | Lewin Day | [
"Retrocomputing"
] | [
"pocket pc",
"serial",
"serial port",
"zeos pocket pc"
] | [Robert’s Retro] is one of those great YouTube channels that shows us the ins and outs of old and obscure computers. [Robert] likes going a step beyond the traditional teardown though, repairing and upgrading these old machines. His latest project involves
giving the ZEOS Pocket PC a fully-functional serial port.
If yo... | 9 | 6 | [
{
"comment_id": "8112188",
"author": "Thijzert",
"timestamp": "2025-03-25T16:55:05",
"content": "This brings back memories to when I used packetradio om UHF on a DOS device like this (HP)…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8112305",
"aut... | 1,760,371,596.259976 | ||
https://hackaday.com/2025/03/25/supercon-2024-killing-mosquitoes-with-freaking-drones-and-sonar/ | Supercon 2024: Killing Mosquitoes With Freaking Drones, And Sonar | Elliot Williams | [
"cons",
"drone hacks",
"Featured",
"Interest",
"Slider"
] | [] | Suppose that you want to get rid of a whole lot of mosquitoes with a quadcopter drone by chopping them up in the rotor blades. If you had
really
good eyesight and pretty amazing piloting skills, you could maybe fly the drone yourself, but honestly this looks like it should be automated. [Alex Toussaint]
took us on a to... | 51 | 10 | [
{
"comment_id": "8112162",
"author": "David",
"timestamp": "2025-03-25T14:39:10",
"content": "“we would have thought that it was impossible” – it WAS, until now",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8112164",
"author": "strawberrymortallyb0bcea48e... | 1,760,371,596.515109 | ||
https://hackaday.com/2025/03/25/reactos-0-4-15-released-with-major-improvements/ | ReactOS 0.4.15 Released With Major Improvements | Maya Posch | [
"News",
"Software Development"
] | [
"operating systems",
"reactos",
"update"
] | Recently the ReactOS project
released the much anticipated 0.4.15
update, making it the first major release since 2020. Despite what might seem like a minor version bump from the previous 0.4.14 release, the update introduces sweeping changes to everything from the kernel to the user interface and aspects like the audi... | 82 | 12 | [
{
"comment_id": "8112106",
"author": "shinsukke",
"timestamp": "2025-03-25T11:07:52",
"content": "I hope they can implement DirectX 12 and GPU driver support, so that I can fully shift to ReactOS for my videogamesIts getting harder to tolerate windows. 7 was the last “good” version, 10 I tolerate bu... | 1,760,371,596.786468 | ||
https://hackaday.com/2025/03/25/metal-detector-built-with-smartphone-interface/ | Metal Detector Built With Smartphone Interface | Lewin Day | [
"Microcontrollers",
"Tool Hacks"
] | [
"ESP32",
"metal detector",
"microcontroller",
"smartphone"
] | If you think of a metal detector, you’re probably thinking of a fairly simple device with a big coil and a piercing whine coming from a tinny speaker. [mircemk] has built a more modern adaptation. It’s a metal detector
you can use with your smartphone instead.
The metal detector part of the project is fairly straightfo... | 8 | 6 | [
{
"comment_id": "8112103",
"author": "strawberrymortallyb0bcea48e7",
"timestamp": "2025-03-25T10:48:38",
"content": "what about FFT?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8112129",
"author": "Shannon",
"timestamp": "2025-03-25T12:34:... | 1,760,371,596.322452 | ||
https://hackaday.com/2025/03/24/handheld-console-plays-original-pong-with-modern-e-waste/ | Handheld Console Plays OriginalPongWith Modern E-Waste | Donald Papp | [
"Games",
"handhelds hacks",
"Retrocomputing"
] | [
"console",
"e-waste",
"pong",
"salvage",
"Sony Watchman"
] | [Simon] wrote in to let us know about
DingPong
, his handheld portable
Pong
console. There’s a bit more to it than meets the eye, however. Consider for a moment that back in the 1970s playing
Pong
required a considerable amount of equipment, not least of which was dedicated electronics and a CRT monitor. What was huge ... | 8 | 5 | [
{
"comment_id": "8112054",
"author": "jpa",
"timestamp": "2025-03-25T06:42:37",
"content": "The age of dedicated ICs seems so foreign now. One chip plays happy birthday, another one is a calculator, a third one is pong. Nowadays we just have a microcontroller for everything.",
"parent_id": null,... | 1,760,371,596.56882 | ||
https://hackaday.com/2025/03/24/glow-in-the-dark-pcbs-are-pretty-cool/ | Glow In The Dark PCBs Are Pretty Cool | Lewin Day | [
"PCB Hacks"
] | [
"glow in the dark",
"pcb",
"PCBWay"
] | What if circuit boards could glow in the dark? It’s a fun question, and one [Botmatrix] sought to answer when approached by manufacturer PCBWay to run a project together.
It turns out that it’s quite possible to make glowing PCBs, with attractive results.
(Video after the break.)
Specifically, PCBWay has developed a wo... | 11 | 8 | [
{
"comment_id": "8112021",
"author": "FEW",
"timestamp": "2025-03-25T02:43:19",
"content": "It’s worth noting that conformal coating typically also includes fluorescent dyes. Then you can add waterproofing/dust protection and glow-in-the-dark at once.",
"parent_id": null,
"depth": 1,
"re... | 1,760,371,596.613402 | ||
https://hackaday.com/2025/03/24/pps-is-the-hottest-usb-c-feature-you-didnt-know-about/ | PPS Is The Hottest USB-C Feature You Didn’t Know About | Lewin Day | [
"Misc Hacks"
] | [
"PPS",
"Tindie",
"USB C",
"USB Power Delivery"
] | USB Power Delivery is widely considered to be a
good thing
. It’s become relatively standard, and is a popular way for makers to easily power their projects at a number of specific, useful voltages. However, what you may not know is that it’s possible to get much more
variable
voltages out of some USB chargers out ther... | 28 | 11 | [
{
"comment_id": "8112003",
"author": "Mb",
"timestamp": "2025-03-25T00:19:47",
"content": "This could make a nice bench voltage supply. 0-10,0-5, 2-10, all from a wall wart or usb c powerbank. Can anybody think of way of getting that resolution down to single digit mA to handle 4-20mA? A device like... | 1,760,371,596.850924 | ||
https://hackaday.com/2025/03/24/mural-the-plotter-that-draws-on-walls/ | Mural: The Plotter That Draws On Walls | Lewin Day | [
"cnc hacks"
] | [
"Crayola",
"crayola markers",
"plotter",
"wall plotter"
] | Let’s say you’ve got a big bare wall in your home, and you want some art on it. You could hang a poster or a framed artwork, or you could learn to paint a mural yourself. Or, like [Nik Ivanov], you could build a plotter
called
Mural,
and get it to draw something on the wall for you.
The build is straightforward enough... | 15 | 10 | [
{
"comment_id": "8111963",
"author": "smellsofbikes",
"timestamp": "2025-03-24T20:41:46",
"content": "When I first saw a similar mechanism used for the Maslow CNC router, I started wondering how hard it would be to put an oxyacetylene torch or plasma cutter on a mechanism like this and have a really... | 1,760,371,596.664816 | ||
https://hackaday.com/2025/03/23/hackaday-links-march-23-2025/ | Hackaday Links: March 23, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"astronauts",
"atari",
"chatbot",
"ChatGPT-4o",
"dragon",
"ESA",
"hackaday links",
"iss",
"LLM",
"Meme",
"nasa",
"retrocomputing",
"Starliner",
"surplus",
"Vivaldi"
] | What a long, strange trip it’s been for NASA astronauts Suni Williams and Bruce Wilmore, who finally completed their eight-day jaunt to space after 289 days.
The duo returned to Earth
from the ISS on Tuesday along with two other returning astronauts in a picture-perfect splashdown, complete with
a dolphin-welcoming com... | 9 | 6 | [
{
"comment_id": "8111680",
"author": "Hirudinea",
"timestamp": "2025-03-23T23:45:20",
"content": "Lie in a waterbed for 10 days? Depends on who is laying with me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8111689",
"author": "fumthings",
"timestam... | 1,760,371,597.093815 | ||
https://hackaday.com/2025/03/23/rtl-sdr-with-only-a-browser/ | RTL-SDR With Only A Browser | Al Williams | [
"Radio Hacks",
"Software Hacks"
] | [
"RTL-SDR",
"WebUSB"
] | Surely by now you’ve at least heard of RTL-SDR — a software project that let’s cheap TV tuner dongles work as a software-defined radios. A number of projects and tools have spun off the original effort, but in his latest video, [Tech Minds] shows off a particularly unique take. It’s a
Web browser-based radio applicatio... | 16 | 5 | [
{
"comment_id": "8111642",
"author": "Jouni",
"timestamp": "2025-03-23T20:57:53",
"content": "Question is which one want to sell your data and privacy: Google or Microsoft?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8111654",
"author": "TG",
... | 1,760,371,596.902276 | ||
https://hackaday.com/2025/03/23/building-the-simplest-atomic-force-microscope/ | Building The Simplest Atomic Force Microscope | Elliot Williams | [
"classic hacks",
"Science"
] | [
"atomic force microscope",
"science"
] | Doing it yourself may not get you the most precise lab equipment in the world, but it gets you a hands-on appreciation of the techniques that just can’t be beat. Today’s example of this adage: [Stoppi]
built an atomic force microscope out of mostly junk parts
and got pretty good results, considering. (Original is in Ge... | 22 | 7 | [
{
"comment_id": "8111609",
"author": "Christoph (stoppi)",
"timestamp": "2025-03-23T18:00:37",
"content": "Hello! Here you can find a short video of my AFM on YouTube 😉https://youtube.com/shorts/Vr66sw34qPI?si=VQf4NmhgJgbSrlss",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,371,597.048543 | ||
https://hackaday.com/2025/03/23/the-mysterious-mindscape-music-board/ | The Mysterious Mindscape Music Board | Maya Posch | [
"Retrocomputing"
] | [
"soundcard"
] | Sound cards on PC-compatible computer systems have a rather involved and convoluted history, with not only a wide diversity of proprietary standards, but also a collection of sound cards that were never advertised as such. Case in point the 1985 Mindscape Music Board, which was an add-on ISA card that came bundled with... | 14 | 6 | [
{
"comment_id": "8111575",
"author": "Gösta",
"timestamp": "2025-03-23T14:50:13",
"content": "Only four are known to exist! What a lovely story :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8111602",
"author": "Miles",
"timestamp": "2025... | 1,760,371,597.146625 | ||
https://hackaday.com/2025/03/23/booting-a-desktop-pdp-11/ | Booting A Desktop PDP-11 | Al Williams | [
"Retrocomputing"
] | [
"DEC",
"pdp-11",
"unix"
] | Ever heard of VENIX? There were lots of variants of Unix back in the day, and VENIX was one for the DEC Professional 380, which was — sort of — a PDP 11. The 1982 machine normally ran the unfortunately (but perhaps aptly) named P/OS, but you could get VENIX, too.
[OldVCR] wanted to put one of these back online
and deci... | 22 | 11 | [
{
"comment_id": "8111547",
"author": "GotNoTime",
"timestamp": "2025-03-23T11:09:59",
"content": "Minor correction. Compaq was bought by HP not Dell.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8111581",
"author": "eriklscott",
"timestamp"... | 1,760,371,597.20901 | ||
https://hackaday.com/2025/03/23/musings-on-a-good-parallel-computer/ | Musings On A Good Parallel Computer | Maya Posch | [
"computer hacks"
] | [
"CPU architecture",
"gpu",
"parallel computing"
] | Until the late 1990s, the concept of a 3D accelerator card was something generally associated with high-end workstations. Video games and kin would run happily on the CPU in one’s desktop system, with later extensions like MMX, 3DNow!, and SSE providing a significant performance boost for games that supported them. As ... | 28 | 13 | [
{
"comment_id": "8111524",
"author": "Joshua",
"timestamp": "2025-03-23T08:22:24",
"content": "The Super Nintendo had used co-processors in early 90s already.Or “Mappers” in NES or Gameboy terminology.SuperFX chip might be most popular, but there also had been 6502 derivatives (or 65C816 derivatives... | 1,760,371,597.419857 | ||
https://hackaday.com/2025/03/22/piezo-sensor-reviewed/ | Piezo Sensor Reviewed | Al Williams | [
"3d Printer hacks"
] | [
"piezo sensor",
"z probe"
] | If you do FDM 3D printing, you know one of the biggest problems is sensing the bed. Nearly all printers have some kind of bed probing now, and it makes printing much easier, but there are many different schemes for figuring out where the bed is relative to the head. [ModBot] had a Voron with a clicky probe but wanted t... | 16 | 6 | [
{
"comment_id": "8111549",
"author": "east",
"timestamp": "2025-03-23T11:41:41",
"content": "Is this really an issue? My bed needs leveling every 50-100 prints and it takes 5 minutes max.Are all these solutions really only for print farms? What’s the utility to the average user?More importantly, the... | 1,760,371,597.258591 | ||
https://hackaday.com/2025/03/24/wearable-computing-goes-woven-wireless-and-washable/ | Wearable Computing Goes Woven, Wireless, And Washable | Donald Papp | [
"Wearable Hacks"
] | [
"body",
"fabric",
"flex PCB",
"wearable computing"
] | Sometimes we come across a wild idea that really tries to re-imagine things, and
re-conceiving wearable computing as a distributed system of “fiber computers” embedded into textiles
is definitely that. The research paper presents fully-functional fiber computers and sensors that are washable, weave-able, wireless, and ... | 5 | 3 | [
{
"comment_id": "8111924",
"author": "E. D.",
"timestamp": "2025-03-24T18:42:44",
"content": "The Hackaday conference 2024 had a pretty good presentation about a similar project (also from MIT):https://youtube.com/watch?v=OA_IuWRBbfM",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,597.524164 | ||
https://hackaday.com/2025/03/24/the-snes-seems-to-be-getting-faster-over-time/ | The SNES Seems To Be Getting Faster Over Time | Lewin Day | [
"Misc Hacks"
] | [
"nintendo",
"snes",
"speedrun",
"speedrunning",
"super nintendo"
] | Every Super Nintendo console should run at the same speed. They were all built in factories with the same components so they should all operate at the steady clip mandated by Nintendo all those years ago. Except, apparently,
the SNES is speeding up as it gets older.
The matter was brought to the public’s attention by t... | 24 | 6 | [
{
"comment_id": "8111893",
"author": "limroh",
"timestamp": "2025-03-24T16:03:28",
"content": "range of submitted figures—from 31,976 Hz to 32,349 Hzvs.but only found a 32 Hz variation from a frozen SNES to one at room temperature.Uh – is that supposed to be 0,32 Hz? or mHz?(interesting otherwise)",... | 1,760,371,597.478077 | ||
https://hackaday.com/2025/03/24/keebin-with-kristina-the-one-with-the-grasshopper-typewriter/ | Keebin’ With Kristina: The One With The Grasshopper Typewriter | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"battle axes",
"erkbd",
"glass",
"glass keyboard",
"Glass PCB",
"grasshopper typewriter",
"hama beads",
"melty beads",
"perler beads",
"Williams typewriter"
] | Do you consider your keyboard to be a fragile thing?
Meet the glass keyboard by [BranchNo9329], which even has a glass PCB
. At least, I think the whole thing is glass.
Image via [BranchNo9329] via
reddit
There are so frustratingly few details that this might as well have been a centerfold, but I thought you all should... | 10 | 3 | [
{
"comment_id": "8112058",
"author": "PCBoi",
"timestamp": "2025-03-25T07:00:20",
"content": "“Because of course there’s going to be RGB”The whole thing is see-through. If anything deserves an RGB treatment, this keyboard surely does.",
"parent_id": null,
"depth": 1,
"replies": [
{... | 1,760,371,597.57678 | ||
https://hackaday.com/2025/03/24/cloudflares-ai-labyrinth-wants-bad-bots-to-get-endlessly-lost/ | Cloudflare’s AI Labyrinth Wants Bad Bots To Get Endlessly Lost | Donald Papp | [
"Artificial Intelligence",
"Software Hacks"
] | [
"security",
"web scraping"
] | Cloudflare has gotten more active in its efforts to identify and block unauthorized bots and AI crawlers that don’t respect boundaries. Their solution?
AI Labyrinth
, which uses generative AI to efficiently create a diverse maze of data as a defensive measure.
This is an evolution of efforts to thwart bots and AI scrap... | 37 | 11 | [
{
"comment_id": "8111831",
"author": "Carl Breen",
"timestamp": "2025-03-24T11:09:59",
"content": "I doubt this will work. The first defense a crawler designer would implement is detect the general HTML tree to not be a real website. Real websites have diverse CSS layouts, lots of scripts and are ju... | 1,760,371,597.657461 | ||
https://hackaday.com/2025/03/24/rolling-foam-cutter-gives-mattress-a-close-shave/ | Rolling Foam Cutter Gives Mattress A Close Shave | Tom Nardi | [
"classic hacks",
"Tool Hacks"
] | [
"foam",
"foam cutter",
"hot wire foam cutter"
] | There’s many different reasons why somebody might have to hack together their own solution to a problem. It could be to save money, or to save time. Occasionally it’s because the problem is unique enough that there might not be an accepted solution, so you’re on your own to create one. We think the situation that [Raph... | 19 | 6 | [
{
"comment_id": "8111815",
"author": "shinsukke",
"timestamp": "2025-03-24T10:05:58",
"content": "Any good ways to get some soft foam to make a mattress with? The good mattresses always seem to cost a leg but the inexpensive ones are just not good to sleep on.Surely someone has hacked their sleeping... | 1,760,371,597.726047 | ||
https://hackaday.com/2025/03/23/build-a-starship-starship-bridge-simulator-with-emptyepsilon/ | Build A Starship Bridge Simulator With EmptyEpsilon | Maya Posch | [
"Games"
] | [
"science fiction",
"simulator",
"star trek"
] | Who hasn’t dreamed of serving on the bridge of a
Star Trek
starship? Although the
EmptyEpsilon project
isn’t adorned with the Universe-famous LCARS user interface, it does provide a comprehensive simulation scenario, in a multiplayer setting. Designed as a LAN or WAN multiplayer game hosted by the server that also serv... | 26 | 10 | [
{
"comment_id": "8111743",
"author": "Aaron",
"timestamp": "2025-03-24T05:06:52",
"content": "At my last job (pre-pandemic) we used to do a weekly Empty Epsilon game – it can be a lot of fun, and EE is flexible enough to act as multiple kinds of games.If you’re really interested in the kinds of cust... | 1,760,371,597.791432 | ||
https://hackaday.com/2025/03/23/unnecessary-automation-of-a-diy-star-lamp-build/ | “Unnecessary” Automation Of A DIY Star Lamp Build | Elliot Williams | [
"classic hacks",
"cnc hacks"
] | [
"automation",
"cnc",
"machine"
] | It all started with a gift idea: a star-field lamp in the form of a concrete sphere with lightpipes poking out where the stars are, lit up from the inside by LEDs. When you’re making one of these, maybe-just-maybe you’d be willing to drill a thousand holes and fit a thousand little plastic rods, but by the time you’re ... | 10 | 5 | [
{
"comment_id": "8111728",
"author": "craig",
"timestamp": "2025-03-24T04:12:36",
"content": "Not that I’d want to make more than one of those but the results are fantastic.I surprised myself when I hand laid about 1000 miniature copper plates on a ship model I built. It was relaxing, almost zen. I ... | 1,760,371,598.065807 | ||
https://hackaday.com/2025/03/22/twisting-magnetism-to-control-electron-flow/ | Twisting Magnetism To Control Electron Flow | Heidi Ulrich | [
"Misc Hacks",
"News",
"Science"
] | [
"chiral",
"chirality",
"circuit",
"diode",
"electron",
"europium",
"magnetic",
"rectification"
] | If you ever wished electrons would just behave, this one’s for you. A team from Tohoku, Osaka, and Manchester Universities has cracked open
an interesting phenomenon in the chiral helimagnet α-EuP
3
: they’ve induced one-way electron flow without bringing diodes into play. Their findings are
published
in the Proceeding... | 11 | 8 | [
{
"comment_id": "8111504",
"author": "Gravis",
"timestamp": "2025-03-23T02:57:14",
"content": "Stuff like this does make me wonder if a small change or two in our history could have lead to the development electronics that are based on something other than semiconductors.",
"parent_id": null,
... | 1,760,371,597.886194 | ||
https://hackaday.com/2025/03/22/generative-art-machine-does-it-one-euro-at-a-time/ | Generative Art Machine Does It One Euro At A Time | Elliot Williams | [
"Art"
] | [
"art",
"lcd",
"machine",
"niklas roy"
] | [Niklas Roy] obviously had a great time building
this generative art cabinet
that puts you in the role of the curator – ever-changing images show on the screen, but it’s only when you put your money in that it prints yours out, stamps it for authenticity, and cuts it off the paper roll with a mechanical box cutter.
If ... | 14 | 11 | [
{
"comment_id": "8111491",
"author": "Hdjd",
"timestamp": "2025-03-22T23:42:28",
"content": "Niiiiiiiiiceeeeeeeee love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8111494",
"author": "Jim J Jewett",
"timestamp": "2025-03-23T00:33:36",
"conte... | 1,760,371,597.837767 | ||
https://hackaday.com/2025/03/22/card-radios-remembered/ | Card Radios Remembered | Al Williams | [
"classic hacks"
] | [
"card radio",
"casio"
] | We know how [Techmoan] feels. In the 1980s we had a bewildering array of oddball gadgets and exciting new tech. But as kids we didn’t have money to buy a lot of what we saw. But he had a £5 note burning a hole in his pocket from Christmas and found a
Casio RD-10 “card radio”
on sale and grabbed it. He’s long-ago lost t... | 18 | 6 | [
{
"comment_id": "8111484",
"author": "jameswilddev",
"timestamp": "2025-03-22T23:30:20",
"content": "I managed to find a thumbnail of the internals on Google but the site it linked to (radiomuseum) didn’t seem to have the full imagehttps://imgur.com/a/mwZYXJ6",
"parent_id": null,
"depth": 1,... | 1,760,371,598.116381 |
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