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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2025/09/21/mandrel-magic-small-box-assembly-with-3d-printing/ | Mandrel Magic: Small Box Assembly With 3D Printing | Matt Varian | [
"Tool Hacks"
] | [
"3d printed tool",
"mandrel"
] | Often, we face tedious tasks with no way around them. Sometimes, you just have to grit your teeth and push through. But small tweaks can make the onerous task a bit easier to handle. [James Bowman] sent in his latest quick project that helps him
fold small boxes
more efficiently.
To fulfill orders on his previously cov... | 2 | 1 | [
{
"comment_id": "8182992",
"author": "Cory Johnson",
"timestamp": "2025-09-22T17:39:28",
"content": "I’m more interested about where he can get a low volume of custom boxes assembled and printed without adding a ton of cost to the end product.",
"parent_id": null,
"depth": 1,
"replies": ... | 1,760,371,421.665405 | ||
https://hackaday.com/2025/09/21/first-transistor-computer-reborn/ | First Transistor Computer Reborn | Al Williams | [
"Retrocomputing"
] | [
"Big Iron",
"mainframe",
"metrovick",
"retrocomputing",
"university of manchester"
] | Ok, we’ll admit it. If you asked us what the first transistorized computer was, we would have guessed it was the TC from the University of Manchester. After all, Dr. Wilkes and company were at the forefront and had built Baby and EDSAC, which, of course, didn’t use transistors. To be clear, we would have been guessing,... | 15 | 7 | [
{
"comment_id": "8182862",
"author": "Pheebe",
"timestamp": "2025-09-22T08:59:44",
"content": "Nina Kalinina wrote up some history over on the fediverse athttps://tech.lgbt/@nina_kali_nina/115242939849102943, and it’s worth a read if you want a bit more info on the background and some other info",
... | 1,760,371,421.343536 | ||
https://hackaday.com/2025/09/21/hackaday-links-september-21-2025/ | Hackaday Links: September 21, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"3d printing",
"amateur",
"AOL",
"bookbinding",
"cd",
"hackaday links",
"hacking",
"ham",
"Harrison Ford",
"Jay Leno",
"license",
"Pacific",
"plastic",
"radio",
"security",
"toilet",
"washing machine"
] | Remember AOL? For a lot of folks, America Online was their first ISP, the place where they got their first exposure to the Internet, or at least a highly curated version of it. Remembered by the cool kids mainly as the place that the normies used as their ISP and for the mark of shame an “@aol.com” email address bore, ... | 7 | 5 | [
{
"comment_id": "8182804",
"author": "Jeff Wright",
"timestamp": "2025-09-22T00:59:37",
"content": "I loved Umberto Eco’s take on the vanity press community:https://wanderinglibrarian.wordpress.com/2009/05/06/publisher-schemes-foucault%E2%80%99s-pendulum%E2%80%A6-the-continued-wanderings/Still—thing... | 1,760,371,421.868477 | ||
https://hackaday.com/2025/09/21/a-serial-mouse-for-a-homebrew-8-bit-computer/ | A Serial Mouse For A Homebrew 8-bit Computer | Al Williams | [
"Peripherals Hacks",
"Retrocomputing"
] | [
"8-bit computers",
"Ben Eater",
"mouse",
"serial mouse"
] | [Too Many Wires] has a custom computer he’s building. He wanted a mouse, but USB is a bit of a stretch for the fledgling computer. We might have opted for PS/2, but he went for something even older:
a serial mouse connected with a DE-9
(colloquially, a DB-9). Check it out in his recent video update on the project below... | 2 | 2 | [
{
"comment_id": "8182786",
"author": "a_do_z",
"timestamp": "2025-09-21T22:33:12",
"content": "Besides the mouse, a big benefit of implementing a basic, widely supported serial interface on a basic computer is having a basic, widely supported serial interface on a basic computer.",
"parent_id": ... | 1,760,371,421.705858 | ||
https://hackaday.com/2025/09/21/welding-with-natural-gas-and-oxygen/ | Welding With Natural Gas And Oxygen | Aaron Beckendorf | [
"Misc Hacks",
"Tool Hacks"
] | [
"acetylene",
"diy torch",
"natural gas",
"oxygen",
"oxygen concentrator"
] | By virtue of its triple bond, acetylene burns hotter than any other common hydrocarbon when mixed with oxygen, but it isn’t the only flame hot enough for welding. With the assistance of a homemade oxygen concentrator,
[Hyperspace Pirate] was able to make a natural gas torch
that melts steel, even if welding with the to... | 15 | 4 | [
{
"comment_id": "8182719",
"author": "Albert",
"timestamp": "2025-09-21T17:22:14",
"content": "Gonna eat plenty of kebabs to produce enough natural ( ͡° ͜ʖ ͡°) gas for any serious welding project.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8182770",
... | 1,760,371,421.401215 | ||
https://hackaday.com/2025/09/21/low-cost-high-gain-a-smart-electronic-eyepiece-for-capturing-the-cosmos/ | Low-Cost, High-Gain: A Smart Electronic Eyepiece For Capturing The Cosmos | Matt Varian | [
"Space"
] | [
"eyepiece",
"imx307",
"night vision camera",
"telescope"
] | We’ve all seen spectacular pictures of space, and it’s easy to assume that’s how it looks to the naked eye through a nice telescope. But in most cases, that’s simply not true. Space is rather dark, so to make out dim objects, you’ll need to amplify the available light. This can be done with a larger telescope, but that... | 18 | 6 | [
{
"comment_id": "8182693",
"author": "m1ke",
"timestamp": "2025-09-21T16:08:33",
"content": "Great shot of Saturn! Can it take a peek at Uranus?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8182707",
"author": "LookAtDaShinyShiny",
"timesta... | 1,760,371,421.758279 | ||
https://hackaday.com/2025/09/21/for-a-robot-claw-the-eyes-have-it/ | For A Robot Claw, The Eyes Have It | Al Williams | [
"Robots Hacks"
] | [
"claw",
"ESP32"
] | Have you ever wished your hand had an extra feature? Like, maybe, a second thumb? A scope probe pinky maybe? Well, if you are building a robot effector, you get to pick what extra features it has.
[Gokux] has the aptly named Cam Claw
, which is a 3D printed claw with a built-in camera so you can see exactly what it is ... | 3 | 3 | [
{
"comment_id": "8182704",
"author": "Piecutter",
"timestamp": "2025-09-21T16:32:27",
"content": "I just got a surprisingly affordable drug store otoscope that pairs with my smart phone screen to retrieve a large, impacted cerumen. I immediately started planning to take it apart, extend it, and comb... | 1,760,371,421.440015 | ||
https://hackaday.com/2025/09/21/building-a-not-very-portable-xbox/ | Building A (Not Very) Portable Xbox | Fenix Guthrie | [
"handhelds hacks",
"Xbox Hacks"
] | [
"diy handheld",
"portable",
"xbox"
] | Modern handheld game consoles are impressive feats of engineering, featuring full fledged computers in near pocket-sized packages. So what happens if you take an original Xbox and sprinkle on some modern electronics and create a handheld? Well, if you’re [James] of
James Channel
, you end up with this
sandwich of PCBs ... | 24 | 9 | [
{
"comment_id": "8182609",
"author": "The ink-srsined wretcg",
"timestamp": "2025-09-21T09:16:35",
"content": "Please, the language is going to hell, don’t make it worse. Do we tape ducks with ductape? No, we tape(d) flat foam replacements for thin steel hemorrhage-causing HVAC ducts! The only probl... | 1,760,371,421.58281 | ||
https://hackaday.com/2025/09/20/march-to-the-beat-of-your-own-piezoelectric-drum/ | March To The Beat Of Your Own Piezoelectric Drum | Tyler August | [
"Musical Hacks"
] | [
"drum",
"piezo disk",
"piezoelectric generator",
"technically successful"
] | Drums! You hit them, and they vibrate. It’s kind of fun. Piezoelectric elements can create electric current when they vibrate. [Will Dana] put two and
two together to try and charge his phone
on his YouTube channel
WillsBuilds
embedded below.
It worked… about as well as you might expect. Which is to say: not very well.... | 7 | 3 | [
{
"comment_id": "8182642",
"author": "Paul",
"timestamp": "2025-09-21T12:52:30",
"content": "Goofy clickbait for the hard of thinking, but I’ll bite.Piezo elementscanbe fairly efficient, but it’s all about impedance matching: bothmechanicalandelectrical.That’s the purpose of that brass disk: it’s a ... | 1,760,371,421.627667 | ||
https://hackaday.com/2025/09/20/when-low-sram-keeps-the-doom-off-your-vape/ | When Low SRAM Keeps TheDOOMOff Your Vape | Maya Posch | [
"Games",
"Reverse Engineering"
] | [
"does it run doom",
"vape"
] | The PIXO Aspire is a roughly $35 USD vape that can almost play
DOOM
, with [Aaron Christophel]
finding that the only thing
that realistically stops it from doing so is that the Cortex-M4-based Puya
PY32F403XC
MCU only has 64 kB of SRAM. CPU-wise it would be more than capable, with a roomy 16 MB of external SPI Flash an... | 28 | 10 | [
{
"comment_id": "8182549",
"author": "Cody",
"timestamp": "2025-09-21T03:53:43",
"content": "Why the hell does a vape need a Coretex M4 CPU and an LCD screen?An 8 bit OTP microcontroller and a couple of LEDs should be more than sufficient.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,371,421.822561 | ||
https://hackaday.com/2025/09/20/a-ruggedized-raspberry-pi-for-sailors/ | A Ruggedized Raspberry Pi For Sailors | Aaron Beckendorf | [
"Raspberry Pi",
"Transportation Hacks"
] | [
"Autopilot",
"nmea 0183",
"NMEA 2000",
"Raspberry Pi Compute Module",
"supercapacitor",
"waterproof",
"waterproofing"
] | Nautical navigation has a long history of innovation, from the compass and chronometer to today’s computer-driven autopilot systems. That said, the poor compatibility of electronics with saltwater has consequently created a need for rugged, waterproof computers, a category to which
[Matti Airas] of Hat Labs has contrib... | 33 | 9 | [
{
"comment_id": "8182498",
"author": "Chris",
"timestamp": "2025-09-20T23:26:01",
"content": "So,What happens to the Ethernet, USB and HDMI connections once their made up?I spent a goodly parts of my professional life putting electronics in less than hospitable conditions.These connects are going to... | 1,760,371,421.944734 | ||
https://hackaday.com/2025/09/20/venus-climate-orbiter-akatsukis-mission-has-ended/ | Venus Climate Orbiter Akatsuki’s Mission Has Ended | Maya Posch | [
"Space"
] | [
"JAXA",
"venus"
] | Japan’s Venus Climate Orbiter
Akatsuki
was launched on May 21, 2010, and started its active mission in 2015 after an initial orbital insertion failure. Since that time,
Akatsuki
has continuously observed Venus from orbit until issues began to crop up in 2024 when contact was lost in April of that year due to attitude c... | 5 | 4 | [
{
"comment_id": "8182515",
"author": "Gravis",
"timestamp": "2025-09-21T00:21:47",
"content": "10 years of data from Venus is still amazing. I’m sure plenty was learned about the planet and how to make the next orbiter more robust. Maybe next time they’ll use rope memory. :)",
"parent_id": null,... | 1,760,371,422.04732 | ||
https://hackaday.com/2025/09/20/regretfully-3000-worth-of-raspberry-pis/ | Regretfully: $3,000 Worth Of Raspberry Pi Boards | Al Williams | [
"Artificial Intelligence",
"Raspberry Pi"
] | [
"hpc",
"Pi",
"Pi Cluster"
] | We feel for [Jeff Geerling]. He spent a lot of effort building an
AI cluster out of Raspberry PI boards
and $3,000 later, he’s a bit regretful. As you can see in the video below, it is a neat build. As Jeff points out, it is relatively low power and dense. But dollar for dollar, it isn’t much of a supercomputer.
Of cou... | 53 | 10 | [
{
"comment_id": "8182383",
"author": "LordNothing",
"timestamp": "2025-09-20T17:25:25",
"content": "most home computer users dont have a need for vector compute beyond perhaps rendering. besides if you did need light parallel compute you would find your gpu has you covered. been programming for year... | 1,760,371,422.134434 | ||
https://hackaday.com/2025/09/20/computer-has-one-instruction-many-transistors/ | Computer Has One Instruction, Many Transistors | Bryan Cockfield | [
"computer hacks"
] | [
"architecture",
"assembler",
"computer",
"instruction set",
"isa",
"lcd",
"subleq"
] | There’s always some debate around what style of architecture is best for certain computing applications, with some on the RISC side citing performance per watt and some on the CISC side citing performance per line of code. But when looking at instruction sets it’s actually possible to eliminate every instruction except... | 22 | 9 | [
{
"comment_id": "8182336",
"author": "AndreN",
"timestamp": "2025-09-20T14:39:26",
"content": "Anyone crazy enough to want to try writing code for a single instruction computer can go try the free Steam game called SIC-1. (Disclaimer: I’m in no way affiliated with the game, just tried to play it a ... | 1,760,371,422.000372 | ||
https://hackaday.com/2025/09/20/simplest-oscilloscope-is-a-cunning-vector-display/ | “Simplest” Oscilloscope Is A Cunning Vector Display | Tyler August | [
"clock hacks"
] | [
"crt hacks",
"diy oscilloscope",
"oscilloscope clock"
] | Superlatives are tricky things. [mircemk]’s guide “
How to make Simplest ever Oscilloscope Clock
” falls into that category. It’s that word, simplest. Certainly, this is an oscilloscope clock, and a nice one. But is it simple?
There’s a nice oscilloscope circuit with a cute 2″ 5LO38I CRT and EF80 tubes for horizontal a... | 18 | 8 | [
{
"comment_id": "8182279",
"author": "jpa",
"timestamp": "2025-09-20T11:19:00",
"content": "A 555 or even a single transistor is horribly complex in itself and a product of thousands of years of technological development.I think a project is simple when the work done for that particular project is s... | 1,760,371,422.189628 | ||
https://hackaday.com/2025/09/20/fnirsi-ips3608-a-bench-power-supply-with-serious-flaws/ | Fnirsi IPS3608: A Bench Power Supply With Serious Flaws | Maya Posch | [
"Reviews"
] | [
"bench power supply",
"review",
"teardown"
] | Fnirsi is one of those brands that seem to pop up more and more often, usually for portable oscilloscopes and kin. Their IPS3608 bench power supply is a bit of a departure from that, offering a mains-powered PSU that can deliver up to 36 VDC and 8 A in a fairly compact, metal enclosure.
Recently [Joftec] purchased one ... | 16 | 10 | [
{
"comment_id": "8182209",
"author": "Stephen",
"timestamp": "2025-09-20T08:07:02",
"content": "200mv = 0.2V. When supplying 1V. That is TWENTY PERCENT RIPPLE.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8182219",
"author": "Johan",
"times... | 1,760,371,422.253094 | ||
https://hackaday.com/2025/09/19/fire-extinguishers-optical-density-ratings-and-safely-using-home-lasers/ | Fire Extinguishers, Optical Density Ratings And Safely Using Home Lasers | Maya Posch | [
"Laser Hacks"
] | [
"laser engraving",
"laser safety",
"PSA"
] | Ski goggle type laser safety lenses may look dorky, but they leave no gaps and fit around glasses. (Credit:
FauxHammer
, YouTube)
After [Ross] from
FauxHammer
miniature model fame got lured into reviewing laser engravers and similar via the Bambu Lab H2D’s laser module, he
found himself getting slightly nervous
about t... | 25 | 6 | [
{
"comment_id": "8182182",
"author": "Ian",
"timestamp": "2025-09-20T06:48:55",
"content": "The lack of knowledge of laser safety by the general public is staggering.I ran across someone with an open-frame laser engraver operating it out in the open at a booth in a local mall. There were people stan... | 1,760,371,422.38406 | ||
https://hackaday.com/2025/09/19/the-inside-story-of-the-uks-great-cb-petrol-scam/ | The Inside Story Of The UK’s Great CB Petrol Scam | Dan Maloney | [
"Radio Hacks",
"Security Hacks"
] | [
"burner",
"cb",
"exploit",
"gasoline",
"linear",
"petrol scam",
"theft",
"uk"
] | Looking at gasoline prices today, it’s hard to believe that there was a time when 75 cents a gallon seemed outrageous. But that’s the way it was in the 70s, and when it tripped over a dollar, things got pretty dicey. Fuel theft was rampant, both from car fuel tanks — remember lockable gas caps? — and even from gas stat... | 28 | 10 | [
{
"comment_id": "8181642",
"author": "alloydog",
"timestamp": "2025-09-19T11:06:54",
"content": "Did it really work?I heard many times of the owner of a dog who lived next door to someone’s uncle’s third-cousin twice removed who used a CB with boots to reset the pump price to zero.Never knew if it w... | 1,760,371,422.581072 | ||
https://hackaday.com/2025/09/19/dirty-pots-meet-power-tools/ | Dirty Pots, Meet Power Tools! | Tyler August | [
"Tool Hacks"
] | [
"3d print",
"oscillating tool",
"polishing"
] | Let’s face it, nobody likes scrubbing, but what option do you have? You can’t exactly break out the grinder to clean off the remains of last nights dinner… right? Well, maybe not a grinder, but thanks to this hack by [Markus Opitz],
you can use an oscillating tool
.
It’s a simple enough hack: [Markus] modeled the attac... | 26 | 13 | [
{
"comment_id": "8181597",
"author": "Stephen",
"timestamp": "2025-09-19T08:33:26",
"content": "I’m not sure this would be good for non-stick surfaces…Also I was amused to find that the headline made me think it was about deoxidising variable resistors! I think I’ve been watching too much Big Clive…... | 1,760,371,422.514728 | ||
https://hackaday.com/2025/09/18/a-gem-of-a-desktop-environment/ | A GEM Of A Desktop Environment | Jenny List | [
"Retrocomputing"
] | [
"atari st",
"digital research",
"GEM"
] | Desktop environments are the norm as computer interfaces these days, but there was once a time when they were a futuristic novelty whose mere presence on a computer marked it out as something special. In the early 1980s you could buy an expensive but very fancy Mac from Apple, while on the PC there were early Windows v... | 25 | 12 | [
{
"comment_id": "8181580",
"author": "James Honey",
"timestamp": "2025-09-19T06:29:27",
"content": "Yep, remember GEM. I used to draw ‘mouse draw’ pictures in 16 shades of grey scale in GEM Paint. It felt like being in the future as a young boy.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,371,422.31605 | ||
https://hackaday.com/2025/09/18/think-you-need-a-new-pc-for-windows-11-think-again/ | Think You Need A New PC For Windows 11? Think Again | Tyler August | [
"Software Hacks"
] | [
"operating system",
"Windows 11"
] | As the sun sets on Windows 10 support, many venues online decry the tsunami of e-waste Windows 11’s nonsensical hardware requirements are expected to create. Still more will offer advice: which Linux distribution is best for your aging PC? [Sean] from Action Retro has an alternate solution:
get a 20 year old Sun Workst... | 25 | 12 | [
{
"comment_id": "8181551",
"author": "scott_tx",
"timestamp": "2025-09-19T02:39:16",
"content": "Win10 LTSC. There, fixed.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8181592",
"author": "volt-k",
"timestamp": "2025-09-19T08:05:56",
... | 1,760,371,422.634739 | ||
https://hackaday.com/2025/09/18/a-deep-dive-on-creepy-cameras/ | A Deep Dive On Creepy Cameras | Navarre Bartz | [
"Artificial Intelligence",
"digital cameras hacks"
] | [
"ai",
"AI countermeasure",
"AI poison",
"ALPR",
"automated license plate reader",
"computer vision",
"law enforcement",
"raspberry pi"
] | George Orwell might’ve predicted the surveillance state, but it’s still surprising how many entities took 1984 as a how-to manual instead of a cautionary tale. [Benn Jordan] decided to take a closer look at the creepy cameras invading our public spaces and
how to circumvent them
.
[Jordan] starts us off with an overvie... | 33 | 10 | [
{
"comment_id": "8181530",
"author": "Anonymous",
"timestamp": "2025-09-19T01:08:58",
"content": "We should set up decoys that use screens that project wanted criminals faces in from of the cameras with new ones every day.So many false positives and the police start ignoring the cameras.",
"pare... | 1,760,371,422.792807 | ||
https://hackaday.com/2025/09/18/enhanced-definition-tv-a-poor-mans-high-def/ | Enhanced Definition TV: “A Poor Man’s High-Def” | Maya Posch | [
"History"
] | [
"EDTV",
"hdtv"
] | Although to many of us the progression from ‘standard definition’ TV and various levels of high-definition at 720p or better seemed to happen smoothly around the turn of the new century, there was a far messier technological battle that led up to this. One of these contenders was Enhanced Definition TV (EDTV), which wa... | 14 | 10 | [
{
"comment_id": "8181481",
"author": "Nikolai",
"timestamp": "2025-09-18T21:28:46",
"content": "I had a Sony Trinitron Wega CRT TV 4×3 with 1080i and DVI Input. The playback quality from DVD via DVI port was significantly better that common RCA back then.The model was similar to KV-30XBR910. The spe... | 1,760,371,422.845303 | ||
https://hackaday.com/2025/09/18/worst-clock-ever-teaches-you-qr-codes/ | Worst Clock Ever Teaches You QR Codes | Elliot Williams | [
"Arduino Hacks",
"Microcontrollers"
] | [
"arduino",
"library",
"qr code"
] | [WhiskeyTangoHotel]
wrote in with his newest clock build
— and he did warn us that it was minimalist and maybe less than useful. Indeed, it is nothing more than a super-cheap ESP32-C3 breakout board with an OLED screen and some code. Worse, you can’t even tell the time on it without pointing your cell phone at the QR c... | 9 | 8 | [
{
"comment_id": "8181489",
"author": "El Gru",
"timestamp": "2025-09-18T21:41:30",
"content": "This could have been a paper printout of a QR code to a time website? Doesn’t even need a 555. /grinThe changing QR code is a neat thing, though.",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,371,422.894261 | ||
https://hackaday.com/2025/09/19/bcachefs-is-now-a-dkms-module-after-exile-from-the-linux-kernel/ | BCacheFS Is Now A DKMS Module After Exile From The Linux Kernel | Maya Posch | [
"Linux Hacks"
] | [
"BcacheFS",
"filesystem",
"linux kernel"
] | It’s been a tense few months for users of the BCacheFS filesystem, as amidst the occasional terse arguments and flowery self-praise on the Linux Kernel mailing list the future of this filesystem within the Linux kernel hung very much in the balance. After some initial confusion about what ‘externally maintained’ means ... | 46 | 8 | [
{
"comment_id": "8182145",
"author": "V",
"timestamp": "2025-09-20T04:52:52",
"content": "Finally. Nothings gonna teach this guy a lesson on testing, production and maturity. I normally do not like or brown nose Linus but this guy pushed the envelope too much, I don’t care how many people rely on it... | 1,760,371,422.722906 | ||
https://hackaday.com/2025/09/19/test-pattern-generator-for-scart-and-rgb-tvs/ | Test Pattern Generator For SCART And RGB TVs | Tyler August | [
"hardware",
"Tool Hacks"
] | [
"analog tv",
"crt",
"pattern generator",
"rp2040",
"test pattern"
] | CRTs don’t last forever, and neither do the electronics that drive them. When you have a screen starting to go wonky, then you need a way to troubleshoot which is at fault. A great tool for that is a pattern generator, but they’re not the easiest to come by these days. [baritonomarchetto] needed a pattern generator to ... | 3 | 3 | [
{
"comment_id": "8182064",
"author": "David H",
"timestamp": "2025-09-20T00:28:52",
"content": "Fascinating project, and it reminded me of how huge and bulky SCART was. Truly an interface designed by a committee of bureaucrats :)As far as test patterns go, to those of us who are British and of a cer... | 1,760,371,423.049196 | ||
https://hackaday.com/2025/09/19/haasoscope-pro-open-everything-2-ghz-usb-oscilloscope/ | Haasoscope Pro: Open-Everything 2 GHz USB Oscilloscope | John Elliot V | [
"hardware"
] | [
"Haasoscope Pro",
"Open-Everything",
"usb oscilloscope"
] | Our hacker [haas] is at it again with the
Haasoscope Pro
, a full redesign of the original Haasoscope, which was a successful Crowd Supply campaign back in 2018.
This new Pro version was funded on Crowd Supply in April this year and increases the bandwidth from 60 MHz to 2 GHz, the vertical resolution from 8 to 12 bits... | 34 | 11 | [
{
"comment_id": "8181946",
"author": "HaHa",
"timestamp": "2025-09-19T20:22:04",
"content": "In what universe is a 3.2 GS/s scope a 2 GHz scope?Credibility spent.Nyquist to the head.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8181958",
"author": ... | 1,760,371,423.120671 | ||
https://hackaday.com/2025/09/19/unobtanium-no-more-perhaps-we-already-have-all-the-elements-we-need/ | Unobtanium No More; Perhaps We Already Have All The Elements We Need | Jenny List | [
"chemistry hacks"
] | [
"mining",
"rare earth metals"
] | It’s been a trope of the news cycle over the past decade or so, that there’s some element which we all need but which someone else has the sole supply, and that’s a Bad Thing. It’s been variously lithium, or rare earth elements, and the someone else is usually China, which makes the perfect mix of ingredients for a goo... | 81 | 12 | [
{
"comment_id": "8181889",
"author": "Dude",
"timestamp": "2025-09-19T18:41:38",
"content": "The stories are a wake up call, or an attempt at least, to point out that you shouldn’t lean on foreign powers such as China for your basic sustenance.One of the reasons why such basic resources aren’t sourc... | 1,760,371,423.005879 | ||
https://hackaday.com/2025/09/19/hackaday-podcast-episode-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp/ | Hackaday Podcast Episode 338: Smoothing 3D Prints, Reading CNC Joints, And Detecting Spicy Shrimp | Kristina Panos | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | This week, Hackaday’s Elliot Williams and Kristina Panos met up over the tubes to bring you the latest news, mystery sound, and of course, a big bunch of hacks from the previous seven days or so.
In Hackaday news, we’ve got a new contest running!
Read all about the 2025 Component Abuse Challenge
, sponsored by DigiKey,... | 8 | 1 | [
{
"comment_id": "8181867",
"author": "Dude",
"timestamp": "2025-09-19T18:19:04",
"content": "Regarding radiation damage: “Statistically speaking, it is the right thing to do”.This is assuming that the means to mitigate the problem are themselves problem free – that you can only do good. Over-reactin... | 1,760,371,423.213922 | ||
https://hackaday.com/2025/09/19/imagining-the-cps-1-an-early-70s-4-bit-microcomputer-from-canada/ | Imagining The CPS-1: An Early 70s 4-bit Microcomputer From Canada | John Elliot V | [
"Raspberry Pi",
"Retrocomputing"
] | [
"4-bit Microcomputer",
"CPS-1",
"Microsystems International Ltd",
"MIL 7114",
"York University Computer Museum"
] | [Michael Gardi] wrote in to let us know about his project:
CPS-1: Imagining An Early 70s 4-bit Microcomputer
.
The CPS-1 was the first Canadian microprocessor-based computer. It was built by Microsystems International Ltd. (MIL) in Ottawa between 1972 and 1973 and it is unknown how many were made and in what configurat... | 4 | 2 | [
{
"comment_id": "8181942",
"author": "regent",
"timestamp": "2025-09-19T20:13:30",
"content": "I love the look of this faceplate. Now I want to build one, but use the interface for something like home automation!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,371,423.162474 | ||
https://hackaday.com/2025/09/19/this-week-in-security-the-shai-hulud-worm-shadowleak-and-inside-the-great-firewall/ | This Week In Security: The Shai-Hulud Worm, ShadowLeak, And Inside The Great Firewall | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks",
"Slider"
] | [
"Ad Fraud",
"NPM",
"prompt injection",
"This Week in Security"
] | Hardly a week goes by that there isn’t a story to cover about malware getting published to a repository. Last week it was millions of downloads on NPM, but this week it’s something much more concerning. Malware published on NPM is now
looking for NPM tokens, and propagating to other NPM packages when found
. Yes, it’s ... | 7 | 3 | [
{
"comment_id": "8181809",
"author": "rclark",
"timestamp": "2025-09-19T16:31:41",
"content": "FYI, from a search : Npm stands for Node Package Manager, which is a tool used to manage JavaScript packages…I didn’t have a clue what that stood for or what it applied too.",
"parent_id": null,
"d... | 1,760,371,423.259025 | ||
https://hackaday.com/2025/09/17/its-a-variable-capacitor-but-not-as-we-know-it/ | It’s A Variable Capacitor, But Not As We Know It | Jenny List | [
"Parts",
"Radio Hacks"
] | [
"capacitor",
"radio",
"variable capacitor"
] | Radio experimenters often need a variable capacitor to tune their circuits, as the saying goes, for maximum smoke. In decades past these were readily available from almost any scrap radio, but the varicap diode and then the PLL have removed the need for them in consumer electronics. There have been various attempts at ... | 22 | 7 | [
{
"comment_id": "8181163",
"author": "Charles Springer",
"timestamp": "2025-09-18T00:06:22",
"content": "Mann-Russell Electronics of Tacoma, WA made RF gluing machines for wood glues. Hand held and also very large for things like their continuous beam presses that made architectural wood beams. The ... | 1,760,371,423.578713 | ||
https://hackaday.com/2025/09/17/smooth-non-planar-3d-ironing/ | Smooth! Non-Planar 3D Ironing | Elliot Williams | [
"3d Printer hacks"
] | [
"3d printer",
"ironing",
"non-planar"
] | Is 2025 finally the year of non-planar 3D printing? Maybe it won’t have to be if [Ten Tech] gets his way!
Ironing is the act of going over the top surface of your print again with the nozzle, re-melting it flat. Usually, this is limited to working on boring horizontal surfaces, but no more!
This post-processing script ... | 25 | 5 | [
{
"comment_id": "8181092",
"author": "George Graves",
"timestamp": "2025-09-17T20:54:22",
"content": "The more I 3d print, the less enamored I am with it. It’s great for somethings, and sucks at others. The problem is that people are using it for everything under the sun. Did that happen with ou... | 1,760,371,423.519208 | ||
https://hackaday.com/2025/09/17/floss-weekly-episode-847-this-is-networking/ | FLOSS Weekly Episode 847: This Is Networking | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"FLOSS Weekly",
"networking"
] | This week
Jonathan
and
Rob
chat with Tom Herbert about XDP2! It’s the brand new framework for making networking really fast, making parsers really simple, and making hardware network acceleration actually useful with Linux.
https://medium.com/@tom_84912/xdp2-this-changes-everything-at-least-for-ai-ml-infrastructure-850... | 0 | 0 | [] | 1,760,371,423.45637 | ||
https://hackaday.com/2025/09/17/forgotten-internet-the-story-of-email/ | Forgotten Internet: The Story Of Email | Al Williams | [
"Featured",
"History",
"Original Art",
"Retrocomputing",
"Slider"
] | [
"AOL",
"arpanet",
"email",
"imap",
"pop",
"smtp"
] | It is a common occurrence in old movies: Our hero checks in at a hotel in some exotic locale, and the desk clerk says, “Ah, Mr. Barker, there’s a letter for you.” Or maybe a telegram. Either way, since humans learned to write, they’ve been obsessed with getting their writing in the hands of someone else. Back when we w... | 25 | 6 | [
{
"comment_id": "8181018",
"author": "Hariedo",
"timestamp": "2025-09-17T17:10:23",
"content": "Glossed right over the pre-DNS considerations of how mail got routed. Before you had a phonebook of IP addresses to know ‘prep.ai.mit.edu’ by its number, you had to give your data a route. Instead ofjoe@... | 1,760,371,423.331709 | ||
https://hackaday.com/2025/09/17/american-science-and-surplus-ends-online-sales/ | American Science And Surplus Ends Online Sales | Tom Nardi | [
"News"
] | [
"mail order",
"store closing",
"surplus"
] | For nearly 90 years, American Science and Surplus has been shipping out weird and wonderful stuff to customers far and wide. In the pre-Internet days, getting their latest catalog in the mail — notable for its hand-drawn illustrations and whimsical style — was always exciting. From Romanian gas masks to odd-ball compon... | 29 | 15 | [
{
"comment_id": "8180963",
"author": "PWalsh",
"timestamp": "2025-09-17T15:39:21",
"content": "Apropos of this, the Marlin P. Jones company also recently went out of business.Electronic Goldmine is still operating.Anyone have a more electronics surplus outfits that do mail order?",
"parent_id": ... | 1,760,371,423.706981 | ||
https://hackaday.com/2025/09/17/naturally-radioactive-food-and-safe-food-radiation-levels/ | Naturally Radioactive Food And Safe Food Radiation Levels | Maya Posch | [
"Hackaday Columns",
"Science"
] | [
"food safety",
"ionizing radiation"
] | There was a recent recall of so-called ‘radioactive shrimp’ that were potentially contaminated with cesium-137 (Cs-137). But contamination isn’t an all-or-nothing affair, so you might wonder exactly how hot the shrimp were. As it turns out, the
FDA’s report makes clear
that the contamination was far below the legal thr... | 25 | 5 | [
{
"comment_id": "8180943",
"author": "Dude",
"timestamp": "2025-09-17T15:02:01",
"content": "Even if the LNT model is true, below a certain point where we cannot even measure the effect because it’s so small that it’s hard to show even in large multi-decade studies, the question becomesdoes it even ... | 1,760,371,423.7758 | ||
https://hackaday.com/2025/09/17/oil-based-sprengel-pump-really-sucks/ | Oil-Based Sprengel Pump Really Sucks | Tyler August | [
"classic hacks"
] | [
"pump",
"vacuum",
"vacuum pump"
] | Have you heard of the Sprengel pump? It’s how they drew hard vacuum back before mechanical pumps were perfected — the first light bulbs had their vacuums drawn with Sprengel pumps, for example. It worked by using droplets of a particular liquid to catch air particles, and push them out a narrow tube, thereby slowly eva... | 21 | 9 | [
{
"comment_id": "8180826",
"author": "Jan Prägert",
"timestamp": "2025-09-17T11:22:34",
"content": "[Helga]: “It’s definitely sucking.”https://www.youtube.com/watch?v=duUOXmlWk80(obligatory sucking joke.)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "818093... | 1,760,371,423.63775 | ||
https://hackaday.com/2025/09/17/the-practicality-of-solar-powered-meshtastic/ | The Practicality Of Solar Powered Meshtastic | Jenny List | [
"Radio Hacks"
] | [
"Meshtastic",
"solar power"
] | A Meshtastic node has been one of the toys of the moment over the last year, and since they are popular with radio amateurs there’s a chance you’ll already live within range of at least one. They can typically run from a lithium-ion or li-po battery, so it’s probable that like us you’ve toyed with the idea of running o... | 18 | 5 | [
{
"comment_id": "8180787",
"author": "shinsukke",
"timestamp": "2025-09-17T08:32:12",
"content": "I am working on something similar but instead of meshtastic I’m using plain old P2P LoRa. I just want to bridge a few relatives’ houses together on one network. All in a 5km radius",
"parent_id": nu... | 1,760,371,423.829859 | ||
https://hackaday.com/2025/09/16/reviewing-deluxe-paint-40-years-on/ | Reviewing Deluxe Paint, 40 Years On | Tyler August | [
"News"
] | [
"amiga",
"Deluxe Paint",
"pixel art"
] | When Deluxe Paint came out with the original Amiga in 1985, it was the killer app for the platform. [Christopher Drum] starts
his recent article on just that note
, remembering the day he and his mother walked into a computer store, and walked out with a brand new Amiga… thanks entirely to
Deluxe Paint.
Forty years on,... | 23 | 13 | [
{
"comment_id": "8180779",
"author": "frenchone",
"timestamp": "2025-09-17T08:01:02",
"content": "https://www.stef.be/dpaint/kinda clone",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8181147",
"author": "Downshift",
"timestamp": "2025-09-17T... | 1,760,371,423.898827 | ||
https://hackaday.com/2025/09/16/perovskite-solar-cell-crystals-see-the-invisible/ | Perovskite Solar Cell Crystals See The Invisible | Heidi Ulrich | [
"chemistry hacks",
"Medical Hacks",
"News",
"Science",
"Solar Hacks"
] | [
"camera",
"crystal",
"CZT",
"NaI",
"perovskite",
"radiation"
] | A new kind of ‘camera’ is poking at the invisible world of the human body – and it’s made from the same weird crystals that once shook up solar energy. Researchers at Northwestern University and Soochow University have built
the first perovskite-based gamma-ray detector
that actually works for nuclear medicine imaging,... | 14 | 5 | [
{
"comment_id": "8180740",
"author": "David",
"timestamp": "2025-09-17T03:24:40",
"content": "Inspiration for theComponent Abuse Challengeannounced a short while ago?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8180746",
"author": "carlfoxmarten",
"... | 1,760,371,423.951942 | ||
https://hackaday.com/2025/09/16/a-10-telescope-because-you-only-live-once/ | A 10″ Telescope, Because You Only Live Once | Tyler August | [
"classic hacks",
"Space"
] | [
"mirror grinding",
"telescope",
"telescope mirror",
"YOLO"
] | Why build a telescope? YOLO, as the kids say. Having decided that, one must decide what type of far-seer one will construct. For his 10″ reflector, [Carl Anderson]
once again said “Yolo”
— this time not as a slogan, but in reference to a little-known type of reflecting telescope.
Telescope or sci-fi laser gun? YOLO, ju... | 21 | 10 | [
{
"comment_id": "8180735",
"author": "mythoughts62",
"timestamp": "2025-09-17T02:50:18",
"content": "My father built several Newtonian reflector telescopes when I was a child. I remember him talking about the Yolo telescope, but I didn’t remember the name. We had a lot of fun with the telescopes. On... | 1,760,371,424.210916 | ||
https://hackaday.com/2025/09/16/making-a-laptop-with-a-mechanical-keyboard/ | Making A Laptop With A Mechanical Keyboard | Fenix Guthrie | [
"laptops hacks"
] | [
"Case mod",
"diy laptop",
"Framework laptop",
"keyboard hack",
"mechanical keyboard",
"rotary encoder"
] | A laptop is one of the greatest tools at the disposal of a hacker. They come in all manner of shapes and sizes with all manner of features. But perhaps the greatest limit held by all laptops is their chiclet keyboard. While certainly serviceable, a proper mechanical keyboard will always reign supreme, which is why [flu... | 16 | 5 | [
{
"comment_id": "8180669",
"author": "lhasagreen",
"timestamp": "2025-09-16T20:22:25",
"content": "Mechanical keyboards: tattoos for your desk—flashy, noisy, and useless for real work. If you want productivity, grab a flat membrane; if you want to annoy everyone else, go clickety-clack your ego away... | 1,760,371,424.008255 | ||
https://hackaday.com/2025/09/16/how-to-have-a-medium-format-camera-without-breaking-the-bank/ | How To Have A Medium Format Camera Without Breaking The Bank | Jenny List | [
"classic hacks"
] | [
"diy camera",
"film photography",
"medium format"
] | For most people, experimentation with film photography comes in the form of the 35 mm format. Its ubiquity in snapshot photography means cameras are readily available at all levels, and the film offers a decent compromise between resolution and number of shots per dollar spent.
For those who wish to take their film pho... | 11 | 7 | [
{
"comment_id": "8180662",
"author": "Tom S",
"timestamp": "2025-09-16T19:49:32",
"content": "Medium format CAMERAs aren’t the bank breakers – Medium format GLASS is.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8181198",
"author": "Dom",
"... | 1,760,371,424.05684 | ||
https://hackaday.com/2025/09/16/2025-hackaday-component-abuse-challenge-let-the-games-begin/ | 2025 Hackaday Component Abuse Challenge: Let The Games Begin! | Elliot Williams | [
"classic hacks",
"contests",
"Featured",
"Interest",
"Slider"
] | [
"2025 Component Abuse Challenge",
"components",
"contest",
"hacks"
] | In theory, all parts are ideal and do just exactly what they say on the box. In practice, everything has its limits, most components have non-ideal characteristics, and you can even turn most parts’ functionality upside down.
The
Component Abuse Challenge
celebrates the use of LEDs as photosensors, capacitors as microp... | 48 | 19 | [
{
"comment_id": "8180619",
"author": "ex-Digikey customer",
"timestamp": "2025-09-16T17:21:42",
"content": "Is Digikey still doing the obnoxious thing of blocking any browser running an adblocker? I’m not turning off my adblocker, and I’m absolutely not turning off my adblocker for anyone who demand... | 1,760,371,424.14875 | ||
https://hackaday.com/2025/09/18/radio-apocalypse-clearing-the-air-with-scatana/ | Radio Apocalypse: Clearing The Air With SCATANA | Dan Maloney | [
"Hackaday Columns",
"Radio Hacks",
"Slider"
] | [
"aviation",
"DME",
"faa",
"fcc",
"navaids",
"NORAD",
"Radio Apocalypse",
"radio navigation",
"SCATANA",
"TACAN",
"VOR",
"VORTAC"
] | For the most part,
the Radio Apocalypse series
has focused on the radio systems developed during the early days of the atomic age to ensure that Armageddon would be as orderly an affair as possible. From systems that provided
backup methods
to ensure that launch orders would reach the bombers and missiles, to providing... | 7 | 4 | [
{
"comment_id": "8181421",
"author": "a_do_z",
"timestamp": "2025-09-18T17:14:39",
"content": "Orderly Armageddon.I predict that somebody will adopt that as their Hackaday handle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8181423",
"author": "Dude",
... | 1,760,371,424.341989 | ||
https://hackaday.com/2025/09/18/pcbs-the-prehistoric-way/ | PCBs The Prehistoric Way | Elliot Williams | [
"Arduino Hacks",
"Art"
] | [
"3d printing",
"arduino",
"art",
"clay",
"extreme diy",
"pcb"
] | When we see an extremely DIY project, you always get someone who jokes “well, you didn’t collect sand and grow your own silicon”. [Patrícia J. Reis] and [Stefanie Wuschitz] did the next best thing: they collected local soil, sieved it down, and
fired their own clay PCB substrates over a campfire
. They even built up a ... | 46 | 10 | [
{
"comment_id": "8181397",
"author": "Anonymous",
"timestamp": "2025-09-18T16:20:36",
"content": "This is just the aesthetic of environmentalism, not environmentalism itself. The chips are still made of epoxy and silicon and require billions of dollars worth of infrastructure! They need to think abo... | 1,760,371,424.514331 | ||
https://hackaday.com/2025/09/18/a-new-generation-of-spacecraft-head-to-the-iss/ | A New Generation Of Spacecraft Head To The ISS | Tom Nardi | [
"Current Events",
"Featured",
"News",
"Original Art",
"Slider",
"Space"
] | [
"commercial space",
"Cygnus",
"Dream Chaser",
"HTV-X",
"international space station",
"nasa",
"resupply"
] | While many in the industry were at first skeptical of NASA’s goal to put resupply flights to the International Space Station in the hands of commercial operators, the results speak for themselves. Since 2012, the SpaceX Dragon family of spacecraft has been transporting crew and cargo from American soil to the orbiting ... | 22 | 4 | [
{
"comment_id": "8181417",
"author": "shinsukke",
"timestamp": "2025-09-18T17:05:44",
"content": "Exciting times ahead! Can’t believe we are in the amazing timeline where we have private players in the space race!I was thinking about something, something absolutely cracked out if I say so myself.I w... | 1,760,371,424.284999 | ||
https://hackaday.com/2025/09/18/listening-for-the-next-wow-signal-with-low-cost-sdr/ | Listening For The Next Wow! Signal With Low-Cost SDR | Tom Nardi | [
"Space"
] | [
"Radio Telescope",
"sdr",
"The Wow! Signal"
] | As you might expect, the University of Puerto Rico at Arecibo has a fascination with radio signals from space. While doing research into the legendary “Wow! Signal” detected back in 1977, they realized that the burst was so strong that a small DIY radio telescope would be able to pick it up using modern software-define... | 14 | 5 | [
{
"comment_id": "8181351",
"author": "Jason",
"timestamp": "2025-09-18T14:00:02",
"content": "It will never happen.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8181381",
"author": "Shannon",
"timestamp": "2025-09-18T15:03:47",
"con... | 1,760,371,424.570075 | ||
https://hackaday.com/2025/09/18/give-your-band-the-music-of-the-bands/ | Give Your Band The Music Of The Bands | Jenny List | [
"Musical Hacks"
] | [
"music",
"radio",
"shortwave"
] | The way to get into radio, and thence electronics, in the middle years of the last century, was to fire up a shortwave receiver and tune across the bands. In the days when every country worth its salt had a shortwave station, Cold War adversaries boomed propaganda across the airwaves, and even radio amateurs used AM th... | 3 | 2 | [
{
"comment_id": "8181432",
"author": "FT8",
"timestamp": "2025-09-18T17:37:01",
"content": "Listening to the digital mode section of 10m (or any band really) with a wide filter makes a mournful electronic loop, like the lullaby of a dying machine",
"parent_id": null,
"depth": 1,
"replies... | 1,760,371,424.610586 | ||
https://hackaday.com/2025/09/17/when-is-your-pyrex-not-the-pyrex-you-expect/ | When Is Your Pyrex Not The Pyrex You Expect? | Jenny List | [
"chemistry hacks"
] | [
"borosilicate glass",
"glass",
"pyrex",
"soda glass"
] | It’s not often that Hackaday brings you something from a cooking channel, but [I Want To Cook] has
a fascinating look at Pyrex glassware
that’s definitely worth watching. If you know anything about Pyrex it’s probably that it’s the glass you’ll see in laboratories and many pieces of cookware, and its special trick is t... | 22 | 12 | [
{
"comment_id": "8181251",
"author": "pelrun",
"timestamp": "2025-09-18T06:08:08",
"content": "Frustratingly there’s no quick way to definitively tell whether a piece of lower-case pyrex is soda glass or not, because the brand switch happened before the formulation switch.I’m surprised by this, beca... | 1,760,371,425.78952 | ||
https://hackaday.com/2025/09/17/getting-the-most-out-of-ism-transceivers-using-math/ | Getting The Most Out Of ISM Transceivers Using Math | Fenix Guthrie | [
"Radio Hacks"
] | [
"home networking",
"rfm12b",
"SAMD21",
"wireless network",
"wireless networking"
] | WiFi is an excellent protocol, but it certainly has its weaknesses. Its range in even a normal home is relatively limited, so you could imagine the sort of performance you’d expect through the hundred meters of dense woodland that [DO3RB] is trying to penetrate. So naturally the solution was to
develop a new wireless t... | 7 | 3 | [
{
"comment_id": "8181200",
"author": "BuriedCode",
"timestamp": "2025-09-18T02:26:04",
"content": "I remember using a modified Golay code for a wireless instrument system prototype for my final year project. The prototype worked OK (ish), but what impressed me was how good that forward error correct... | 1,760,371,426.255132 | ||
https://hackaday.com/2025/09/15/off-to-the-races-with-esp32-and-eink/ | Off To The Races With ESP32 And EInk | Tyler August | [
"classic hacks"
] | [
"eink",
"ESP32",
"formula 1"
] | Off to the races? Formula One races, that is. This project by [mazur8888] uses an
ESP32 to keep track of the sport
, and display a “live” dashboard on a 2.9″ tri-color LCD.
“Live” is in scare quotes because updates are fetched only every 30 minutes; letting the ESP32 sleep the rest of the time gives the tiny desk gadge... | 16 | 10 | [
{
"comment_id": "8180077",
"author": "Mark Topham",
"timestamp": "2025-09-15T19:13:53",
"content": "I’ve got a couple of red/black rink displays I’d like to use, but I haven’t determined the support for them. It wasn’t headed in the right direction last time I looked.Anybody have a cheat sheet for h... | 1,760,371,425.951506 | ||
https://hackaday.com/2025/09/15/flashlight-repair-brings-entire-workshop-to-bear/ | Flashlight Repair Brings Entire Workshop To Bear | Tom Nardi | [
"Repair Hacks"
] | [
"3D printed parts",
"Anker",
"flashlight",
"lathe"
] | The modern hacker and maker has an incredible array of tools at their disposal — even a modestly appointed workbench these days would have seemed like science-fiction a couple decades ago. Desktop 3D printers, laser cutters, CNC mills, lathes, the list goes on and on. But what good is all that fancy gear if you don’t p... | 16 | 6 | [
{
"comment_id": "8180002",
"author": "CityZen",
"timestamp": "2025-09-15T17:40:22",
"content": "As a kid, I used to take apart and repair flashlights. Recently, I had an LED flashlight fail on me. It’s a slightly fancy one with a spot light in front and a flood light on the side. It wasn’t turning o... | 1,760,371,426.078788 | ||
https://hackaday.com/2025/09/15/going-native-with-androids-native-development-kit/ | Going Native With Android’s Native Development Kit | Maya Posch | [
"Android Hacks",
"Featured",
"Slider",
"Software Development"
] | [
"android ndk",
"android sdk"
] | Originally Android apps were only developed in Java, targeting the Dalvik Java Virtual Machine (JVM) and its associated environment. Compared to platforms like iOS with Objective-C, which is just C with Smalltalk uncomfortably crammed into it, an obvious problem here is that any JVM will significantly cripple performan... | 8 | 4 | [
{
"comment_id": "8180088",
"author": "helmlier",
"timestamp": "2025-09-15T19:39:44",
"content": "Honestly who cares about Android anymore… just gonna end up being a worse closed garden than apple at this point..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,371,426.317378 | ||
https://hackaday.com/2025/09/15/usb-c-pd-decoded-a-diy-meter-and-logger-for-power-insights/ | USB-C PD Decoded: A DIY Meter And Logger For Power Insights | Matt Varian | [
"hardware"
] | [
"ESP-01",
"power meter",
"USB-C PD"
] | As USB-C PD becomes more and more common, it’s useful to have a tool that lets you understand exactly what it’s doing—no longer is it limited to just 5 V. This
DIY USB-C PD tool
, sent in by [ludwin], unlocks the ability to monitor voltage and current, either on a small screen built into the device or using Wi-Fi.
This... | 9 | 4 | [
{
"comment_id": "8179881",
"author": "Lacey",
"timestamp": "2025-09-15T11:04:17",
"content": "Only an hour ago I was thinking it would be handy to have something like this, mostly because I was using a new PD supply with my phone and have no idea which volate mode it’s operating on out of 5, 9, 12, ... | 1,760,371,425.841288 | ||
https://hackaday.com/2025/09/15/original-mac-limitations-cant-stop-you-from-running-ai-models/ | Original Mac Limitations Can’t Stop You From Running AI Models | Ian Bos | [
"News"
] | [
"apple",
"Apple Macintosh",
"mnist databse",
"neural network",
"sdk"
] | Modern retrocomputing tricks often push old hardware and systems further than any of the back-in-the-day developers could have ever dreamed. How about a neural network on an original Mac? [KenDesigns] does just this with a classic
handwritten digit identification network running with an entire custom SDK
!
Getting such... | 14 | 6 | [
{
"comment_id": "8179834",
"author": "Joshua",
"timestamp": "2025-09-15T08:28:35",
"content": "Let’s just wait a little longer and users will have unlearned to use a mouse of a GUI operated system.Instead, they will be asking an LLM like ChatGPT to click an icon or make a selection. Let’s just wait.... | 1,760,371,426.133683 | ||
https://hackaday.com/2025/09/14/utf-8-is-beautiful/ | UTF-8 Is Beautiful | Jenny List | [
"Software Hacks"
] | [
"character set",
"UTF-8"
] | It’s likely that many Hackaday readers will be aware of UTF-8, the mechanism for incorporating diverse alphabets and other characters such as 💩 emojis. It takes the long-established 7-bit ASCII character set and extends it into multiple bytes to represent many thousands of characters. How it does this may well be beyo... | 30 | 16 | [
{
"comment_id": "8179799",
"author": "a",
"timestamp": "2025-09-15T05:47:36",
"content": "*poop",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179832",
"author": "Joshua",
"timestamp": "2025-09-15T08:24:49",
"content": "It’s lacking CP437, which w... | 1,760,371,426.02059 | ||
https://hackaday.com/2025/09/14/e-waste-and-waste-oil-combine-to-make-silver/ | E-Waste And Waste Oil Combine To Make Silver | Tyler August | [
"chemistry hacks",
"News"
] | [
"Chemistry",
"e-waste recycling"
] | As the saying goes, “if it can’t be grown, it has to be mined”– but what about all the metals that have already been wrested from the bosom of the Earth? Once used, they can be recycled– or as this
paper charmingly puts it, become ore for “urban mining” techniques
. The technique under discussion in the Chemical Engine... | 12 | 5 | [
{
"comment_id": "8179733",
"author": "M",
"timestamp": "2025-09-15T02:46:43",
"content": "Ok, but what happens to the slush that’s left over? Presumably the electronics would need to be ground into a more surface-available dust and mixed into a slurry for this chemical process to work. This liquid w... | 1,760,371,425.902714 | ||
https://hackaday.com/2025/09/16/this-rail-speeder-needs-a-little-work/ | This Rail Speeder Needs A Little Work | Jenny List | [
"Transportation Hacks"
] | [
"Electric motor",
"rail speeder",
"steel rim"
] | If you take the wheels off a FIAT Punto, you might just notice that those rims fit nicely on a rail. [AT Lab] did, and
the resulting build makes for a very watchable video
.
Some of us have been known to spend a little too much time chasing trains, and there’s little on rails that won’t catch a railfan’s eye. That goes... | 29 | 11 | [
{
"comment_id": "8180574",
"author": "JSL",
"timestamp": "2025-09-16T15:53:03",
"content": "“but we’d cut those inner rims off to avoid painful derailments.” I think you meant to say that you’d cut the outer rims off, not the inner ones.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,371,426.196045 | ||
https://hackaday.com/2025/09/16/serious-chemical-threat-sniffer-on-a-budget/ | Serious Chemical Threat Sniffer On A Budget | Heidi Ulrich | [
"chemistry hacks",
"Microcontrollers"
] | [
"air",
"air quality",
"air quality monitor",
"chemical warfare",
"gas",
"pollution",
"smog",
"VOC"
] | Chemical warfare detection was never supposed to be a hobbyist project. Yet here we are:
Air Quality Guardian
by [debdoot], the self-proclaimed world’s first open source chemical threat detection system, claims to pack lab-grade sensing into an ESP32-based build for less than $100. Compare that with $10,000+ black-box ... | 40 | 15 | [
{
"comment_id": "8180487",
"author": "Clark",
"timestamp": "2025-09-16T11:27:26",
"content": "I truly admire the self-confidence of the person who wrote the readme, boldly explaining how this arduino + 8€ COTS sensor combined with ~900 lines of C++ is better than professional chemical warfare detect... | 1,760,371,426.394685 | ||
https://hackaday.com/2025/09/16/jointly-is-a-typeface-designed-for-cnc-joinery/ | Jointly Is A Typeface Designed For CNC Joinery | Tyler August | [
"cnc hacks"
] | [
"cnc",
"mortise and tenon",
"typography",
"woodworking"
] | If you have a CNC router, you know you can engrave just about any text with the right tool, but Jointly is a typeface that isn’t meant to be
engraved
. That would be too easy for [CobyUnger]. His typeface “Jointly” is the first we’ve seen that’s
meant to be used as joinery
.
The idea is simple: carve mortises that take... | 23 | 6 | [
{
"comment_id": "8180450",
"author": "medix",
"timestamp": "2025-09-16T09:57:47",
"content": "Is it just me or is this is vaguely giving “comic sans in wood” vibes?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8180511",
"author": "Tarheelbandb",
... | 1,760,371,426.460433 | ||
https://hackaday.com/2025/09/15/the-microtronic-phoenix-computer-system/ | The Microtronic Phoenix Computer System | John Elliot V | [
"computer hacks",
"hardware",
"Retrocomputing"
] | [
"Busch 2090 Microtronic Computer System",
"Microtronic Phoenix",
"texas instruments",
"TMS1600 microcontroller"
] | A team of hackers, [Jason T. Jacques], [Decle], and [Michael A. Wessel], have collaborated to deliver the
Microtronic Phoenix Computer System
.
In 1981 the
Busch 2090 Microtronic Computer System
was released. It had a 4-bit Texas Instruments TMS1600 microcontroller, ran at 500 kHz, and had 576 bytes of RAM and 4,096 by... | 4 | 1 | [
{
"comment_id": "8180618",
"author": "KC8KVA",
"timestamp": "2025-09-16T17:19:41",
"content": "This brings back so many great memories for me. Spending my Summers in Germany, I would frequent this “Spielwaren” in downtown Donauwoerth that had toys and kits to build. The owner, at the time, knew I ... | 1,760,371,426.579055 | ||
https://hackaday.com/2025/09/15/see-voyagers-1990-solar-system-family-portrait-debut/ | See Voyager’s 1990 ‘Solar System Family Portrait’ Debut | Maya Posch | [
"Space"
] | [
"nasa-jpl",
"Voyager 1",
"Voyager 2"
] | It’s been just over 48 years since Voyager 1 was launched on September 5, 1977 from Cape Canaveral, originally to study our Solar System’s planets. Voyager 1 would explore Jupiter and Saturn, while its twin Voyager 2 took a slightly different route to ogle other planets. This primary mission for both spacecraft complet... | 5 | 3 | [
{
"comment_id": "8180260",
"author": "David",
"timestamp": "2025-09-16T02:03:43",
"content": "Between them, the pictures from the Voyagers have “billions and billions” of views.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8180496",
"author": "Miguel",
... | 1,760,371,426.618266 | ||
https://hackaday.com/2025/09/15/a-closer-look-inside-a-robots-typewriter-inspired-mouth/ | A Closer Look Inside A Robot’s Typewriter-Inspired Mouth | Donald Papp | [
"Art",
"Raspberry Pi"
] | [
"3d printed",
"animatronics",
"lip sync",
"mouth",
"stepper motor"
] | [Ancient] has a video showing off a fascinating piece of work:
a lip-syncing robot whose animated electro-mechanical mouth works like an IBM Selectric typewriter
. The mouth rapidly flips between different phonetic positions, creating the appearance of moving lips and mouth. This rapid and high-precision movement is th... | 26 | 10 | [
{
"comment_id": "8180210",
"author": "Evaprototype",
"timestamp": "2025-09-16T00:08:16",
"content": "Cool was waiting to see a if they used a stepper or a whiffletree.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8180217",
"author": "Andrew",
"timest... | 1,760,371,426.688103 | ||
https://hackaday.com/2025/09/15/hosting-a-website-on-a-disposable-vape/ | Hosting A Website On A Disposable Vape | Maya Posch | [
"Microcontrollers",
"Reverse Engineering"
] | [
"disposable vape",
"ewaste",
"reverse engineering",
"upcycling",
"webserver"
] | For the past years people have been collecting disposable vapes primarily for their lithium-ion batteries, but as these disposable vapes have begun to incorporate more elaborate electronics, these too have become an interesting target for reusability. To prove the point of how capable these electronics have become, [Bo... | 53 | 14 | [
{
"comment_id": "8180111",
"author": "David",
"timestamp": "2025-09-15T20:39:29",
"content": "Hariharasubrahmanian Shrikumar designed an itty-bitty cheap web server in 1999:The World’s Smallest Web Server?It is the size of a match head and it costs less than $1. The single chip computer runs an iPic... | 1,760,371,426.781813 | ||
https://hackaday.com/2025/09/14/hackaday-links-september-14-2025/ | Hackaday Links: September 14, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"atomic",
"biosignature",
"crt",
"hackaday links",
"Manhattan Project",
"mars",
"nasa",
"nuclear",
"Perseverance",
"redox",
"retro",
"video"
] | Is it finally time to
cue up the Bowie
? Or was
the NASA presser
on Wednesday announcing new findings of potential Martian biosignatures from
Perseverance
just another in a long line of “We are not alone” teases that turn out to be false alarms? Time will tell, but from
the peer-reviewed paper
released simultaneously w... | 1 | 1 | [
{
"comment_id": "8181008",
"author": "Nik",
"timestamp": "2025-09-17T16:40:38",
"content": "Do aliens exist? Yes. Are they alone too? Yes.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,371,426.876761 | ||
https://hackaday.com/2025/09/14/retro-x86-with-486tang/ | Retro X86 With 486Tang | Al Williams | [
"FPGA",
"Retrocomputing"
] | [
"80486",
"fpga",
"Gowin",
"MiSTER",
"Tang"
] | Tang FPGA boards are affordable, and [nand2mario] has been trying to get an x86 core running on one for a while. Looks like it finally worked out, as there is an early version of the
ao486 design on a Tang FPGA board using a Gowin device
. That core’s available on the MiSTer platform, which emulates games using an Alte... | 4 | 2 | [
{
"comment_id": "8179631",
"author": "fiddlingjunky",
"timestamp": "2025-09-14T21:56:31",
"content": "I love the tang9k and 20k. Very capable little boards.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8179684",
"author": "ellisfl",
"timest... | 1,760,371,426.838034 | ||
https://hackaday.com/2025/09/14/reverse-engineering-aleratec-cd-changers-for-archival-use/ | Reverse-Engineering Aleratec CD Changers For Archival Use | Maya Posch | [
"Reverse Engineering",
"Tech Hacks"
] | [
"archival",
"cd changer",
"optical media"
] | Handling large volumes of physical media can be a bit of a chore, whether it’s about duplication or archiving. Fortunately this is a perfect excuse for building robotic contraptions, with the robots for handling optical media being both fascinating and mildly frustrating. When [Shelby Jueden] of
Tech Tangents
fame was ... | 15 | 4 | [
{
"comment_id": "8179582",
"author": "MrW",
"timestamp": "2025-09-14T19:05:02",
"content": "Pioneer 107d",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179615",
"author": "Dan",
"timestamp": "2025-09-14T20:56:25",
"content": "I used to work for a ... | 1,760,371,426.935735 | ||
https://hackaday.com/2025/09/14/this-board-helps-you-prototype-circuits-with-tubes/ | This Board Helps You Prototype Circuits With Tubes | Seth Mabbott | [
"how-to",
"Radio Hacks"
] | [
"breadboard hacks",
"vacuum tubes"
] | There you are at the surplus store, staring into the bin of faded orange, yellow, red, and black, boxes–a treasure trove of vintage vacuum tubes—dreaming about building a tube amp for your guitar or a phonograph preamp for your DIY hi-fi sound system. But, if you are not already in possession of a vintage, purpose-buil... | 12 | 8 | [
{
"comment_id": "8179513",
"author": "werd",
"timestamp": "2025-09-14T14:46:32",
"content": "“surplus store”?! Where is this mythical beast?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8179525",
"author": "Daniel",
"timestamp": "2025-09-1... | 1,760,371,426.985929 | ||
https://hackaday.com/2025/09/14/reverse-engineering-the-milwaukee-m18-diagnostics-protocol/ | Reverse-Engineering The Milwaukee M18 Diagnostics Protocol | Maya Posch | [
"Battery Hacks",
"Reverse Engineering",
"Tool Hacks"
] | [
"battery pack",
"cordless tool",
"Milwaukee M18"
] | As is regrettably typical in the cordless tool world, Milwaukee’s M18 batteries are highly proprietary. Consequently, this makes them a welcome target for reverse-engineering of their interfaces and protocols. Most recently the
full diagnostic command set for M18 battery packs were reverse-engineered
by [ToolScientist]... | 17 | 7 | [
{
"comment_id": "8179452",
"author": "mnh-jansson",
"timestamp": "2025-09-14T11:49:13",
"content": "While i was involved in this project, the video is from ToolScientist. I would give him the main credit in the article :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,371,427.038231 | ||
https://hackaday.com/2025/09/14/from-paper-to-pixels-a-diy-digital-barograph/ | From Paper To Pixels: A DIY Digital Barograph | Matt Varian | [
"hardware"
] | [
"barograph",
"bme280",
"ESP32"
] | A barograph is a device that graphs a barometer’s readings over time, revealing trends that can predict whether stormy weather is approaching or sunny skies are on the way. This
DIY Digital Barograph
, created by [mircmk], offers a modern twist on a classic technology.
Dating back to the mid-1700s, barographs have trad... | 6 | 5 | [
{
"comment_id": "8179480",
"author": "Antron Argaiv",
"timestamp": "2025-09-14T13:03:19",
"content": "Built one a few years ago around an Arduino. I might steal some ideas from this one and update mine.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179555",
... | 1,760,371,427.17912 | ||
https://hackaday.com/2025/09/13/3d-modeling-with-paper-as-an-alternative-to-3d-printing/ | 3D Modeling With Paper As An Alternative To 3D Printing | Maya Posch | [
"3d Printer hacks"
] | [
"Arts and Crafts",
"paper model"
] | Manual arrangement of the parts in Pepakura Designer. (Credit: Arvin Podder)
Although these days it would seem that everyone and their pets are running 3D printers to churn out all the models and gadgets that their hearts desire, a more traditional approach to creating physical 3D models is in the form of paper models.... | 32 | 13 | [
{
"comment_id": "8179392",
"author": "prfesser",
"timestamp": "2025-09-14T06:05:04",
"content": "Paper modeling is about as inexpensive as a hobby can get. A huge variety of highly detailed models are available for free download. How about a 1/48 scale (2.3 m, seven and a half feet!) Saturn V? Or a ... | 1,760,371,427.253904 | ||
https://hackaday.com/2025/09/13/aussie-researchers-say-they-can-bring-the-iron-age-to-mars/ | Aussie Researchers Say They Can Bring The Iron Age To Mars | Tyler August | [
"Space"
] | [
"ISRU",
"mars"
] | It’s not martian regolith, bu it’s the closest chemical match available to the dirt in Gale Crater. (Image: Swinburne University)
Every school child can tell you these days that Mars is red because it’s rusty. The silicate rock of the martian crust and regolith is very rich in iron oxide. Now Australian researchers at ... | 44 | 9 | [
{
"comment_id": "8179358",
"author": "Sean",
"timestamp": "2025-09-14T02:18:31",
"content": "“It’s not clear how economical piling red dust into a thousand-degree furnace would be on Mars”We are far from there yet, but in the end, unless you are doing asteroid mining in say the Xinglong (The Expanse... | 1,760,371,427.129879 | ||
https://hackaday.com/2025/09/13/how-to-make-a-simple-mosfet-tester/ | How To Make A Simple MOSFET Tester | John Elliot V | [
"hardware",
"LED Hacks"
] | [
"mosfet",
"MOSFET tester"
] | Over on YouTube our hacker [VIP Love Secretary] shows us
how to make a simple MOSFET tester
.
This is a really neat, useful, elegant, and simple hack, but the video is kind of terrible. We found that the voice-over constantly saying “right?” and “look!” seriously drove us to distraction. But this is a circuit which you... | 22 | 6 | [
{
"comment_id": "8179342",
"author": "JSL",
"timestamp": "2025-09-14T00:13:12",
"content": "Nice video. A better explanation is that the stray capacitance of the high-impedance gate should retain whatever charge is imparted upon it to keep the LED turned on or off. The human acts as an antenna for... | 1,760,371,427.313635 | ||
https://hackaday.com/2025/09/13/send-images-to-your-terminal-with-rich-pixels/ | Send Images To Your Terminal WithRich Pixels | Donald Papp | [
"Software Hacks"
] | [
"pixel art",
"terminal",
"unicode"
] | [darrenburns]’
Rich Pixels
is a library for sending colorful images to a terminal. Give it an image, and it’ll dump it to your terminal in full color. While it also supports ASCII art, the cool part is how it makes it so easy to display an arbitrary image — a pixel-art rendition of it, anyway — in a terminal window.
Ho... | 10 | 6 | [
{
"comment_id": "8179302",
"author": "Andrew",
"timestamp": "2025-09-13T21:24:15",
"content": "Mode 7, Teletext!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179325",
"author": "Brendan Robert",
"timestamp": "2025-09-13T22:43:05",
"content": "ca... | 1,760,371,427.368743 | ||
https://hackaday.com/2025/09/13/esp32-hosts-functional-minecraft-server/ | ESP32 Hosts FunctionalMinecraftServer | Tyler August | [
"Games",
"Microcontrollers"
] | [
"esp32-C3",
"minecraft"
] | If you haven’t heard of
Minecraft
, well, we hope you enjoyed your rip-van-winkle nap this past decade or so. For everyone else, you probably at least know that this is a multiplayer, open world game, you may have heard that running a
Minecraft
server is a good job for maxing out a spare a Raspberry Pi. Which is why we... | 11 | 6 | [
{
"comment_id": "8179188",
"author": "1Fac3D",
"timestamp": "2025-09-13T17:14:44",
"content": "My respect and my condolences",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179239",
"author": "M",
"timestamp": "2025-09-13T18:24:26",
"content": "Som... | 1,760,371,427.468357 | ||
https://hackaday.com/2025/09/13/keep-reading-keep-watching/ | Keep Reading, Keep Watching | Elliot Williams | [
"Hackaday Columns",
"Rants"
] | [
"newsletter",
"rants"
] | I’ve been flying quadcopters a fair bit lately, and trying to learn some new tricks also means crashing them, which inevitably means repairing them. Last weekend, I was working on some wiring that had gotten caught and ripped a pad off of the controller PCB. It wasn’t so bad, because there was a large SMT capacitor nea... | 13 | 5 | [
{
"comment_id": "8179164",
"author": "Chris Pepin",
"timestamp": "2025-09-13T14:12:54",
"content": "This is why it’s good to have a well-rounded education and to be constantly learning new things. You never know what bits of information will come in handy and provide unexpected dividends.",
"par... | 1,760,371,427.422743 | ||
https://hackaday.com/2025/09/13/turning-a-milling-machine-into-a-lathe/ | Turning A Milling Machine Into A Lathe | Aaron Beckendorf | [
"cnc hacks",
"Tool Hacks"
] | [
"cnc",
"cnc lathe",
"lathe",
"metal lathe",
"taig mill"
] | If you’re planning to make a metalworking lathe out of a CNC milling machine, you probably don’t expect getting a position sensor to work to be your biggest challenge. Nevertheless, this was
[Anthony Zhang]’s experience
. Admittedly, the milling machine’s manufacturer sells a conversion kit, which greatly simplifies th... | 8 | 3 | [
{
"comment_id": "8179282",
"author": "tyler",
"timestamp": "2025-09-13T20:01:33",
"content": "I’m building a bullet lathe in the same veinUsing a piece of railroad track as the bed",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8179476",
"author": "C... | 1,760,371,427.586927 | ||
https://hackaday.com/2025/09/13/design-scanimations-in-a-snap-with-the-right-math/ | Design Scanimations In A Snap With The Right Math | Donald Papp | [
"Art",
"classic hacks"
] | [
"animation",
"barrier grid",
"scanimate"
] | Barrier-grid animations (also called scanimations) are a thing most people would recognize on sight, even if they didn’t know what they were called. Move a set of opaque strips over a pattern, and watch as different slices of that image are alternately hidden and revealed, resulting in a simple animation. The tricky pa... | 10 | 5 | [
{
"comment_id": "8179128",
"author": "M",
"timestamp": "2025-09-13T09:50:40",
"content": "Probably a fun little weekend programming puzzle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179150",
"author": "Pumpkinwaffle",
"timestamp": "2025-09-13T11:... | 1,760,371,427.632218 | ||
https://hackaday.com/2025/09/12/musical-motors-bldc-edition/ | Musical Motors, BLDC Edition | Tyler August | [
"Musical Hacks"
] | [
"BLDC controller",
"bldc motor",
"electronic music"
] | This should count as a hack: making music from a thing that should not sing. In this case, [SIROJU] is tickling the ivories with
a Brushless DC motor, or BLDC.
To listen to a performance, jump to 6:27 in the embedded video. This BLDC has a distinctly chip-tune like sound, not entirely unlike other projects that
make mu... | 21 | 15 | [
{
"comment_id": "8179066",
"author": "Andrew",
"timestamp": "2025-09-13T05:06:23",
"content": "Sounds like AI narration. Even if it’s not, I couldn’t get past two minutes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179071",
"author": "Cad the Mad",
... | 1,760,371,427.685883 | ||
https://hackaday.com/2025/09/12/what-is-the-fourier-transform/ | What Is The Fourier Transform? | John Elliot V | [
"digital audio hacks",
"Software Hacks"
] | [
"discrete fourier transform",
"fast fourier transform",
"fourier transform",
"Joseph Fourier"
] | Over at
Quanta Magazine
[Shalma Wegsman] asks
What Is the Fourier Transform?
[Shalma] begins by telling you a little about
Joseph Fourier
, the French mathematician with an interest in heat propagation who founded the field of harmonic analysis in the early 1800s.
Fourier’s basic insight was that you can represent ever... | 20 | 11 | [
{
"comment_id": "8179113",
"author": "alialiali",
"timestamp": "2025-09-13T08:10:10",
"content": "The 3blue1brown YouTube channel has an amazing video titled “But what is the Fourier Transform” that really nailed home my intuition for it.https://youtu.be/spUNpyF58BY?feature=shared",
"parent_id":... | 1,760,371,427.740965 | ||
https://hackaday.com/2025/09/12/running-code-on-a-pax-credit-card-payment-machine/ | Running Code On A PAX Credit Card Payment Machine | Maya Posch | [
"Reverse Engineering"
] | [
"payment terminal",
"point of sale"
] | The PAX D177 PoS terminal helpfully tells you which tamper points got triggered. (Credit: Lucas Teske)
These days Points of Sale (PoS) usually include a digital payment terminal of some description, some of which are positively small, such as the Mini PoS terminals that PAX sells. Of course, since it has a CPU and a sc... | 7 | 5 | [
{
"comment_id": "8179059",
"author": "x0rpunk",
"timestamp": "2025-09-13T04:19:32",
"content": "CPU swap….Another 1337 way is to put a SBC in it; classic HaD style",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8179081",
"author": "Per Jensen",
"timest... | 1,760,371,427.78753 | ||
https://hackaday.com/2025/09/12/a-breadboard-computer-in-three-chips/ | A Breadboard Computer In Three Chips | Bryan Cockfield | [
"computer hacks"
] | [
"breadboard",
"clock",
"computer",
"counter",
"programmable",
"ram"
] | Building a computer on a breadboard is a seminal project for many builders, but it can become complicated quite quickly, not to mention that all the parts needed for a computer are being placed on a medium which often lends itself to loose wires and other hardware bugs.
[3DSage] has a working breadboard computer that i... | 4 | 3 | [
{
"comment_id": "8179060",
"author": "mythoughts62",
"timestamp": "2025-09-13T04:27:53",
"content": "This sounds alotlike a 4-bit machine I built with perf board and dead-bug wiring as a teenager in the ’70s. It used a lot more than 3 chips though, it was all TTL except for the, you guessed it, 555 ... | 1,760,371,427.824057 | ||
https://hackaday.com/2025/09/12/reify-your-github-commit-history-with-contrib-cal/ | Reify Your GitHub Commit History With Contrib Cal | John Elliot V | [
"3d Printer hacks",
"hardware",
"LED Hacks",
"Raspberry Pi"
] | [
"Contrib Cal",
"GitHub activity",
"Raspberry Pi Zero W"
] | Over on Instructables, [Logan Fouts] shows us
the Contrib Cal GitHub desk gadget
. This build will allow you to sport your recent GitHub commit activity on your wall or desk with an attractive diffuse light display backed by a 7×4 matrix of multicolor LEDs. Motivate yourself and impress your peers!
This humble project ... | 3 | 1 | [
{
"comment_id": "8178826",
"author": "jawnhenry",
"timestamp": "2025-09-12T17:38:39",
"content": "Only one comment:What does“REIFY”mean?More of your commitment to Artificial Stupidity, Hackaday?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8178865",
... | 1,760,371,427.900583 | ||
https://hackaday.com/2025/09/12/hackaday-podcast-episode-337-homebrew-inductors-teletypes-in-the-bedroom-and-action/ | Hackaday Podcast Episode 337: Homebrew Inductors, Teletypes In The Bedroom, And Action! | Dan Maloney | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Fresh hacks here! Get your fresh hot hacks right here! Elliot and Dan teamed up this week to go through every story published on our pages to find the best of the best, the cream of the crop, and serve them up hot and fresh for you. The news this week was all from space, with the ISS getting its latest push from Dragon... | 0 | 0 | [] | 1,760,371,427.863178 | ||
https://hackaday.com/2025/09/12/this-week-in-security-npm-kerbroasting-and-the-rest-of-the-story/ | This Week In Security: NPM, Kerbroasting, And The Rest Of The Story | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks",
"Slider"
] | [
"0-days",
"NPM",
"Obfuscated C Code Contest",
"This Week in Security"
] | Two billion downloads per week. That’s
the download totals for the NPM packages compromised in a supply-chain attack this week
. Ninety-nine percent of the cloud depends on one of the packages, and one-in-ten cloud environments actually included malicious code as a result of the hack. Take a moment to ponder that. In a... | 9 | 5 | [
{
"comment_id": "8178771",
"author": "Truth",
"timestamp": "2025-09-12T14:39:10",
"content": "One can only assume that Microsoft has been served with a FISA warrant, with gagging, from the FISC to keep the backdoor in place as long as possible.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,371,428.044986 | ||
https://hackaday.com/2025/09/12/everything-you-ever-wanted-to-know-about-the-manhattan-project-but-were-afraid-to-ask/ | Everything You Ever Wanted To Know About The Manhattan Project (But Were Afraid To Ask) | Al Williams | [
"Science"
] | [
"Manhattan Project",
"nuclear bomb"
] | There have been plenty of books and movies about how the Manhattan Project brought together scientists and engineers to create the nuclear bomb. Most of them don’t have a lot of technical substance, though. You know — military finds genius, genius recruits other geniuses, bomb! But if you want to hear the story of the ... | 34 | 7 | [
{
"comment_id": "8178736",
"author": "Joseph Eoff",
"timestamp": "2025-09-12T12:52:48",
"content": "Copper, however, was in short supply. It was wartime, after all. So the program borrowed another good conductor, silver, from the Treasury Department. Presumably, they eventually returned it, but [Bri... | 1,760,371,428.17663 | ||
https://hackaday.com/2025/09/12/how-strong-of-a-redbull-can-you-make/ | How Strong Of A Redbull Can You Make? | Fenix Guthrie | [
"chemistry hacks"
] | [
"Chemistry",
"redbull"
] | Energy drinks are a staple of those who want to get awake and energetic in a hurry. But what if said energy is not in enough of a hurry for your taste? After coming across a thrice concentrated energy drink, [Nile Blue]
decided to make a 100 times concentrated Redbull.
Energy drinks largely consist of water with caffei... | 38 | 20 | [
{
"comment_id": "8178686",
"author": "macsimki",
"timestamp": "2025-09-12T08:57:27",
"content": "no comments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8178689",
"author": "Darkstar",
"timestamp": "2025-09-12T09:03:07",
"content": "WTF is “gol... | 1,760,371,428.25189 | ||
https://hackaday.com/2025/09/11/how-the-ti-99-4a-home-computer-worked/ | How The TI-99/4A Home Computer Worked | John Elliot V | [
"hardware",
"Retrocomputing"
] | [
"home computer",
"texas instruments",
"TI-99/4A"
] | Over on YouTube [The 8-Bit Guy] shows us
how the TI-99/4A home computer worked
.
[The 8-Bit Guy] runs us through this odd 16-bit home computer from back in the 1980s, starting with a mention of the mysterious extra “space” key on its antiquated keyboard. The port on the side is for two joysticks which share a bus, but ... | 59 | 18 | [
{
"comment_id": "8178649",
"author": "Oliver",
"timestamp": "2025-09-12T05:44:47",
"content": "Omg we used tot have ons of these. Came with some big box on the side too. I remember my dad sitting there hours to an end typing in code , by hunt and peck, (to this day he cant type properly)from a maga... | 1,760,371,427.99815 | ||
https://hackaday.com/2025/09/11/analog-optical-computer-for-inference-and-combinatorial-optimization/ | Analog Optical Computer For Inference And Combinatorial Optimization | Maya Posch | [
"computer hacks"
] | [
"analog computing",
"inference",
"optical computing"
] | Although computers are overwhelmingly digital today, there’s a good point to be made that analog computers are the more efficient approach for specific applications. The authors behind
a recent paper
in
Nature
are arguing that inference – essential for LLMs – can be done significantly more efficiently using an analog o... | 17 | 6 | [
{
"comment_id": "8178654",
"author": "jpa",
"timestamp": "2025-09-12T06:15:50",
"content": "If I understand correctly, it’s basically a row of LEDs, the light projected into lines onto grayscale TFT, and gathered again into points on photodetector in the perpendicular direction. Fairly simple tech a... | 1,760,371,428.094985 | ||
https://hackaday.com/2025/09/11/6502-puts-on-an-sdr-hat/ | 6502 Puts On An SDR Hat | Bryan Cockfield | [
"Radio Hacks"
] | [
"40-meter",
"6502",
"ham",
"microprocessor",
"radio",
"sdr",
"software-defined radio"
] | The legendary 6502 microprocessor recently turned 50 years old, and to celebrate this venerable chip which brought affordable computing and video gaming to the masses [AndersBNielsen] decided to put one to work doing something well outside its comfort zone. Called the PhaseLoom,
this project uses a few other components... | 11 | 7 | [
{
"comment_id": "8178643",
"author": "Anders Nielsen",
"timestamp": "2025-09-12T05:19:55",
"content": "Thanks for the mention!I think it’s more my “two pieces of wire in the attic” antenna that’s picking up noise rather than the design.The quadrature sampling detector doesn’t have as much selectivit... | 1,760,371,428.385009 | ||
https://hackaday.com/2025/09/11/multi-use-roof-eliminates-roof/ | Multi-Use Roof Eliminates Roof | Bryan Cockfield | [
"green hacks"
] | [
"building",
"elevated",
"garden",
"roof",
"solar",
"solar panel"
] | One of the biggest downsides of installing solar panels on a rooftop is that maintenance of the actual roof structure becomes much more difficult with solar panels in the way. But for many people who don’t have huge tracts of land, a roof is wasted space where something useful could otherwise go. [Mihai] had the idea o... | 57 | 8 | [
{
"comment_id": "8178505",
"author": "HaHa",
"timestamp": "2025-09-11T20:17:57",
"content": "Story is useless without picture of room ceiling below panels.How waterproof is this setup?Closeup of how he flashed the panel joins?I’d overlap and overlay them a half inch, like large fragile tiles.Amateur... | 1,760,371,428.342517 | ||
https://hackaday.com/2025/09/11/round-and-round-with-a-tape-delay-synth/ | Round And Round With A Tape Delay Synth | Jenny List | [
"Musical Hacks"
] | [
"delay",
"loop",
"synth",
"tape loop"
] | Over the years we’ve been entertained by an array of musical projects from [Look Mum No Computer], and his latest is no exception.
It’s a tape delay, loop generator, and synth all in one
. Confused? That’s what you get if you position a load of tape heads around a rotating disk with magnetic tape on its perimeter.
Taki... | 7 | 5 | [
{
"comment_id": "8178476",
"author": "ialonepossessthetruth",
"timestamp": "2025-09-11T18:49:46",
"content": "The first image is beautiful! “He’ll male” what now?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8178521",
"author": "YoDrTentacles",
"tim... | 1,760,371,428.486208 | ||
https://hackaday.com/2025/09/11/dragon-is-the-latest-and-final-craft-to-reboost-iss/ | Dragon Is The Latest, And Final, Craft To Reboost ISS | Tom Nardi | [
"Current Events",
"Featured",
"Slider",
"Space"
] | [
"commercial space",
"international space station",
"iss",
"reboost",
"shuttle"
] | The International Space Station has been in orbit around the Earth, at least in some form, since November of 1998 — but not without help. In the vacuum of space, an object in orbit can generally be counted on to remain zipping around more or less forever, but the Station is low enough to experience a bit of atmospheric... | 48 | 11 | [
{
"comment_id": "8178461",
"author": "TG",
"timestamp": "2025-09-11T17:56:17",
"content": "Those tanks don’t look like they take up nearly the volume of the cargo bay. I know it’s all they need and it doesn’t make sense to add more, but I wonder what kind of range the lil guy would have if you packe... | 1,760,371,428.574283 | ||
https://hackaday.com/2025/09/11/4-bit-single-board-computer-based-on-the-intel-4004-microprocessor/ | 4-bit Single Board Computer Based On The Intel 4004 Microprocessor | John Elliot V | [
"computer hacks",
"Retrocomputing"
] | [
"4-bit microprocessor",
"intel 4004",
"Intel 4040",
"SBC",
"single board computer"
] | [Scott Baker] is at it again and this time he has
built a 4-bit single board computer based on the Intel 4004 microprocessor
.
In the board design [Scott] covers the CPU (both the Intel 4004 and 4040 are supported), and its support chips: the 4201A clock-generator, its crystal, and the 4289 Standard Memory Interface. T... | 8 | 5 | [
{
"comment_id": "8178437",
"author": "Tim McNerney",
"timestamp": "2025-09-11T16:42:12",
"content": "Excellent work, Scott!–Tim (founder of 4004 anniversary project: 4004.com)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8179041",
"author": "Scott ... | 1,760,371,428.617464 | ||
https://hackaday.com/2025/09/11/freecad-foray-good-practices/ | FreeCAD Foray: Good Practices | Arya Voronova | [
"Hackaday Columns",
"Slider"
] | [
"freecad",
"tips"
] | Last time, we built a case for a PCB that handles 100 W of USB-C power, an old project that I’ve long been aiming to revive. It went well, and I’d like to believe you that the article will give you a much-needed easy-to-grasp FreeCAD introduction, Matrix knowledge upload style, having you designing stuff in no time.
Ap... | 26 | 9 | [
{
"comment_id": "8178369",
"author": "sweethack",
"timestamp": "2025-09-11T14:16:04",
"content": "In short, prefer using PartDesign to Part workbench. If you think in boolean operation too much (Cut / Union / Intersect), you’ll end up with unsolvable and unmodifiable mess. Make the most you can in P... | 1,760,371,428.875142 | ||
https://hackaday.com/2025/09/11/old-phone-upcycled-into-pico-projector-asmr/ | Old Phone Upcycled Into Pico Projector, ASMR | Tyler August | [
"Cellphone Hacks"
] | [
"cell phone display",
"diy projector",
"home theatre",
"lcd"
] | To update an old saying for the modern day, one man’s e-waste is another man’s bill of materials. Upcycling has always been in the hacker’s toolkit, and cellphones provide a wealth of resources for those bold enough to seize them. [Huy Vector] was bold enough, and transformed an old smartphone into a
portable pico proj... | 29 | 11 | [
{
"comment_id": "8178330",
"author": "Cricri",
"timestamp": "2025-09-11T11:14:07",
"content": "At 3min07 he says a 50W LED cob. He’s got a small cooler and a 40mm (I think?) fan to cool it down.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8178333",
"aut... | 1,760,371,428.687271 | ||
https://hackaday.com/2025/09/11/debugging-vs-printing/ | Debugging Vs Printing | Al Williams | [
"Software Development"
] | [
"debugger",
"debugging"
] | We’ll admit it. We have access to great debugging tools and, yes, sometimes they are invaluable. But most of the time, we’ll just throw a few print statements in whatever program we’re running to better understand what’s going on inside of it. [Loop Invariant] wants to point out to us that there are things a proper deb... | 26 | 14 | [
{
"comment_id": "8178286",
"author": "Joseph Eoff",
"timestamp": "2025-09-11T08:30:58",
"content": "All correct as far as it goes.Nothing beats good logging for debugging problems that somebodyelsehas with your software. I can’t connect a debugger to somebody else’s computer and minitor it 24/7 unt... | 1,760,371,428.748989 | ||
https://hackaday.com/2025/09/10/65f02-is-an-fpga-6502-with-a-need-for-speed/ | 65F02 Is An FPGA 6502 With A Need For Speed | Tyler August | [
"Retrocomputing"
] | [
"6502 processor",
"65c02",
"fpga"
] | Does the in 65F02 “F” stand for “fast” or “FPGA”? [Jurgen] doesn’t know, but his drop-in replacement board for the
6502 and 65c02 is out there and open source
, whatever you want it to stand for.
The “f” could easily be both, since at 100 MHz, the 65f02 is blazing fast by 6502 standards–literally 100 times the speed of... | 8 | 6 | [
{
"comment_id": "8178236",
"author": "irox",
"timestamp": "2025-09-11T06:12:55",
"content": "I am immediately start wondering if I make this a drop in replacement for my project car’s 6502 based ECU. Reading data from the ECU is severely limited by serial bandwidth, this may allow the reading of muc... | 1,760,371,428.810558 |
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