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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2025/08/18/the-pc-in-your-pico/ | The PC In Your Pico | Jenny List | [
"Raspberry Pi",
"Retrocomputing"
] | [
"286",
"PC emulator",
"pi pico"
] | We’re all used to emulating older computers here, and we’ve seen plenty of projects that take a cheap microcontroller and use it to emulate a classic home computer or gaming platform. They’re fun, but serve mostly as a way to relive old toys.
As microcontrollers become faster though it’s inevitable that the machines th... | 34 | 11 | [
{
"comment_id": "8165551",
"author": "KDawg",
"timestamp": "2025-08-19T03:00:51",
"content": "One of the things abot freedos is its a little hungry for ram… while it will boot and run on 640k there’s not much left. That is something to remember on something like the xt class zenith laptop I tried it... | 1,760,371,448.491859 | ||
https://hackaday.com/2025/08/18/adjustable-allen-key-after-all-these-years/ | Adjustable Allen Key After All These Years | Tyler August | [
"Tool Hacks"
] | [
"allen key",
"manual machining",
"toolmaking"
] | The Allen key turns 115 this year. It’s strange to believe that in all that time, no one has come up with an adjustable version, but apparently true. Luckily [Chronova Engineering] has taken up the challenge
in his latest video
.
The video is a fascinating glimpse at the toolmaker’s art–manual machining and careful hum... | 40 | 18 | [
{
"comment_id": "8165543",
"author": "Mark",
"timestamp": "2025-08-19T02:37:56",
"content": "The only thing better than this glorious craftsmanship is getting to see and hear the full end to end thought process to solve this problem.",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,371,448.702383 | ||
https://hackaday.com/2025/08/18/i-3d-printer/ | I, 3D Printer | Al Williams | [
"3d Printer hacks",
"digital cameras hacks"
] | [
"3d printer conversion",
"camera rig"
] | Like many of us, [Ben] has too many 3D printers. What do you do with the old ones? In his case, he converted it into
a robotic camera rig
. See the results, including footage from the robot, in the video below. In addition to taking smooth video, the robot can spin around to take photos for photogrammetry.
In fact, the... | 3 | 1 | [
{
"comment_id": "8165456",
"author": "Delta",
"timestamp": "2025-08-18T22:37:21",
"content": "I converted my Ender 3 Pro into an Ender 3 NG. Was definitely worth effort because the Ender 3 brought more fixing and less printing.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,448.135449 | ||
https://hackaday.com/2025/08/18/2025-one-hertz-challenge-timekeeping-at-one-becquerel/ | 2025 One Hertz Challenge: Timekeeping At One Becquerel | Tyler August | [
"clock hacks",
"contests"
] | [
"2025 Hackaday One Hertz Challenge",
"americium-241",
"gamma ray spectroscopy",
"scintillator",
"Vetinari clock"
] | The Becquerel (Bq) is an SI unit of radioactivity: one becquerel is equivalent to one radioactive decay per second. That absolutely does not make it equivalent to one hertz — the random nature of radioactive decay means you’ll never get one pulse every second — but it does make it interesting. [mihai.cuciuc] certainly ... | 23 | 7 | [
{
"comment_id": "8165336",
"author": "Joel",
"timestamp": "2025-08-18T18:37:58",
"content": "Any cheap chinese dupes in chat?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8165343",
"author": "dudefromthenorth",
"timestamp": "2025-08-18T18:50:55",
... | 1,760,371,448.295203 | ||
https://hackaday.com/2025/08/17/hackaday-links-august-17-2025/ | Hackaday Links: August 17, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"3I/Atlas",
"aliens",
"Avi Loeb",
"coffee",
"comet",
"continental divide",
"cooling",
"data center",
"drought",
"factory tour",
"hackaday links",
"interstellar",
"it's not aliens",
"office",
"perhelion",
"rivers",
"RTO",
"sequoia",
"Starbucks",
"toyota",
"Tundra"
] | We’ve studiously avoided any mention of our latest interstellar visitor, 3I/Atlas, on these pages, mainly because of all the hoopla in the popular press about
how Avi Loeb thinks it’s aliens
, because of course he does. And we’re not saying it’s aliens either, mainly because we’d never be lucky enough to be alive durin... | 15 | 7 | [
{
"comment_id": "8164686",
"author": "A",
"timestamp": "2025-08-17T23:40:07",
"content": "Everyone knows clouds turn into rain, and thus the best way to make it rain is to delete data from any cloud based devices.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,371,448.189256 | ||
https://hackaday.com/2025/08/17/2025-one-hertz-challenge-a-flaming-oscillator-and-a-new-take-on-the-candle-clock/ | 2025 One Hertz Challenge: A Flaming Oscillator And A New Take On The Candle Clock | Aaron Beckendorf | [
"contests"
] | [
"2025 Hackaday One Hertz Challenge",
"candle",
"candle flicker",
"capacitance sensor",
"CH32V003",
"oscillator"
] | Candle clocks were once an easy way to build a clock without using complex mechanical devices: just observe how quickly a thin candle burns down, mark an identical candle with periodic gradations, and you had a simple timer. These were the first candle-based timekeeping devices, but as [Tim]’s
flicker-based oscillator
... | 6 | 4 | [
{
"comment_id": "8164627",
"author": "biemster",
"timestamp": "2025-08-17T20:59:01",
"content": "absolutely brilliant!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8164634",
"author": "Feinfinger (super villain in nostalgy mode)",
"timestam... | 1,760,371,448.42056 | ||
https://hackaday.com/2025/08/17/recto-in-case-programming-isnt-hard-enough/ | Recto: In Case Programming Isn’t Hard Enough | Al Williams | [
"Software Development",
"Software Hacks"
] | [
"lisp",
"visual programming"
] | There’s long been a push to stop writing code as a sequence of lines and go to something graphical, which has been very successful in some areas and less so in others. But even when you use something graphical like Scratch, it is
really
standing in for lines of code? Many graphical environments are really just interfac... | 20 | 13 | [
{
"comment_id": "8164497",
"author": "baltar",
"timestamp": "2025-08-17T17:11:10",
"content": "You want reasonable graphic programming? Try DRAKON.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8164585",
"author": "Benjamin Goldberg",
"timestamp": "20... | 1,760,371,448.23987 | ||
https://hackaday.com/2025/08/17/llama-habitat-continues-to-expand-now-includes-the-psp/ | Llama Habitat Continues To Expand, Now Includes The PSP | Tyler August | [
"Artificial Intelligence",
"PSP Hacks"
] | [
"llama2",
"local LLM",
"playstation portable",
"psp"
] | Organic Llamas have a rather restricted range, in nature: the Andes Mountains, and that’s it. Humans weren’t content to let the fluffy, friend-shaped creatures stay in their natural habitat, however, and they can now be found on every continent except Antarctica. The Llama2 Large Language Model is like that: while it m... | 14 | 6 | [
{
"comment_id": "8164419",
"author": "SETH",
"timestamp": "2025-08-17T14:29:25",
"content": "The coherence of the output 🤣",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8164437",
"author": "macsimki",
"timestamp": "2025-08-17T15:33:49",
... | 1,760,371,448.814478 | ||
https://hackaday.com/2025/08/17/its-a-pi-but-its-not-quite-a-raspberry-pi/ | It’s A Pi, But It’s Not Quite ARaspberryPi | Jenny List | [
"Raspberry Pi"
] | [
"raspberry pi",
"Raspberry pi clone",
"reverse engineering",
"RP3A0"
] | When is a Raspberry Pi not a Raspberry Pi? Perhaps when it’s
a Pi Pico-shaped board with an RP3A0 SoC from a Raspberry Pi Zero 2
, made by [jonny12375].
Back in the early days of the Raspberry Pi, there was
a offering from the Korean manufacturer Odroid
, which wasn’t merely a similar machine with a different SoC, but ... | 17 | 7 | [
{
"comment_id": "8164405",
"author": "Miles",
"timestamp": "2025-08-17T14:02:00",
"content": "I had an Odroid, it wasn’t 100% electrically or software compatible, but it was close. If I remember rightly it could run off a single lithium cell with a charging circuit.Sadly while photographing it near... | 1,760,371,448.756302 | ||
https://hackaday.com/2025/08/17/commodore-is-back-selling-new-c64s-but-should-you-buy-them/ | Commodore Is Back Selling New C64s, But Should You Buy Them? | Maya Posch | [
"Retrocomputing"
] | [
"commodore",
"commodore 64"
] | It’s hard to argue with nostalgia, but you
can
toss a bucket of cold facts over it. In the case of the recent rescuing of the Commodore brand from the clutches of relabeling of generic electronics by [Perifractic] of
Retro Recipes
, we got [The Retro Shack]
doing the proverbial bucket dumping in a new video
. Basically... | 108 | 26 | [
{
"comment_id": "8164246",
"author": "daveb",
"timestamp": "2025-08-17T08:03:05",
"content": "that starlight edition looks excellent.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8165075",
"author": "Nathan Silva",
"timestamp": "2025-08-18T... | 1,760,371,448.632035 | ||
https://hackaday.com/2025/08/16/a-second-chance-for-the-single-wheel-monorail/ | A Second Chance For The Single Wheel Monorail? | Heidi Ulrich | [
"Toy Hacks",
"Transportation Hacks"
] | [
"brennan",
"gimbal",
"gyro",
"gyroscope",
"locomotive",
"meccano",
"monorail",
"track",
"train"
] | Lately,
this peculiar little single wheel monorail
came to our attention. Built by [extraglide1976], all from Meccano. His build started with modest tests: one gyro obviously flopped. Two gyros geared together ran slightly better. But when he adds active gimbal control, things suddenly come to life – the model shudders... | 27 | 14 | [
{
"comment_id": "8164218",
"author": "Actually...",
"timestamp": "2025-08-17T06:33:07",
"content": "this has 4 wheels, so not a single wheel monorail.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8164223",
"author": "DurDurDur",
"timestamp": "2025-08... | 1,760,371,448.876931 | ||
https://hackaday.com/2025/08/18/how-laser-headlights-died-in-the-us/ | How Laser Headlights Died In The US | Lewin Day | [
"Hackaday Columns",
"Misc Hacks",
"Slider"
] | [
"fmvss",
"headlights",
"laser headlights",
"phosphor",
"regulation"
] | Automotive headlights started out burning acetylene, before regular electric lightbulbs made them obsolete. In due time, halogen bulbs took over, before the industry began to explore even newer technologies like HID lamps for greater brightness. Laser headlights stood as the next leap forward, promising greater visibil... | 140 | 28 | [
{
"comment_id": "8165284",
"author": "Ostracus",
"timestamp": "2025-08-18T17:31:31",
"content": "“Better high beams are surely a good thing, but given how rarely most motorists use them, they’re hardly a critical feature.”Those in rural areas might differ.",
"parent_id": null,
"depth": 1,
... | 1,760,371,449.451829 | ||
https://hackaday.com/2025/08/18/should-you-try-printing-with-polypropylene/ | Should You Try Printing With Polypropylene? | Tyler August | [
"3d Printer hacks"
] | [
"3d printer filament",
"polypropylene"
] | Of all the plastics that surround us on the daily, the one we hear least about in the 3D printing world is probably polypropylene (PP). Given that this tough, slightly flexible thermoplastic has characteristics you might want for your prints, the question is: why? [Lost in Tech] is not answering that question in a rece... | 11 | 4 | [
{
"comment_id": "8165399",
"author": "Vik Olliver",
"timestamp": "2025-08-18T20:30:13",
"content": "Having tried this way back when, the problems were twofold: Layer adhesion and shrinkage. The shrinkage was the killer. It needs a high print temperature, and a high coefficient of thermal expansion. ... | 1,760,371,449.025119 | ||
https://hackaday.com/2025/08/18/the-terminal-demise-of-consumer-electronics-through-subscription-services/ | The Terminal Demise Of Consumer Electronics Through Subscription Services | Maya Posch | [
"Featured",
"History",
"Interest",
"Original Art",
"Slider"
] | [
"consumer electronics"
] | Open any consumer electronics catalog from around the 1980s to the early 2000s and you are overwhelmed by a smörgåsbord of devices, covering any audio-visual and similar entertainment and hobby needs one might have. Depending on the era you can find the camcorders, point-and-shoot film and digital cameras right next to... | 86 | 29 | [
{
"comment_id": "8165140",
"author": "CJay",
"timestamp": "2025-08-18T14:14:06",
"content": "Ma’am, This Is A Wendy’s.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8165169",
"author": "Miles",
"timestamp": "2025-08-18T14:55:27",
"co... | 1,760,371,449.189294 | ||
https://hackaday.com/2025/08/18/sniffing-5g-with-software-defined-radio/ | Sniffing 5G With Software-Defined Radio | Fenix Guthrie | [
"Security Hacks",
"Wireless Hacks"
] | [
"5g",
"cellular",
"cellular network",
"wireless sniffing"
] | The fifth generation mobile communications protocol (5G) is perhaps the most complicated wireless protocol ever made. Featuring wildly fast download speeds, beam forming base stations, and of course non-standard additions, it’s rather daunting prospect to analyze for the home hacker and researcher alike. But this didn’... | 3 | 2 | [
{
"comment_id": "8165268",
"author": "NS",
"timestamp": "2025-08-18T17:08:07",
"content": "Beamforming is intimidating enought for me, that I just stay out of any of that. I get flashbacks from my basic attempts into trying to get the basics.Is there like a module or device that does all that scary ... | 1,760,371,449.065717 | ||
https://hackaday.com/2025/08/18/chinas-great-solar-wall-is-a-big-deal/ | China’s Great Solar Wall Is A Big Deal | Navarre Bartz | [
"green hacks"
] | [
"China’s Great Solar Wall",
"Great Solar Wall",
"infrastructure",
"megaproject",
"solar",
"solar energy"
] | Data centers and the electrification of devices that previously ran on fossil fuels is driving increased demand for electricity around the world. China is addressing this with
a megaproject
that is a new spin on their most famous piece of infrastructure.
At 250 miles long and 3 miles wide with a generating capacity of ... | 60 | 7 | [
{
"comment_id": "8164934",
"author": "shinsukke",
"timestamp": "2025-08-18T08:20:48",
"content": "Now only if I can figure out a use for my 120W panel…It was an impulse buy (45$)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8164948",
"author": "ano... | 1,760,371,449.735836 | ||
https://hackaday.com/2025/08/17/cracking-abandonware-drm-like-its-1999/ | Cracking Abandonware DRM Like It’s 1999 | Tyler August | [
"Games",
"Software Hacks"
] | [
"abandonware",
"cracking",
"drm"
] | As long as there have been games, there have been crackers breaking their copy protections. “Digital Rights Management” or DRM, is a phrase for copy protection coined near the end of the 1990s, and subverted shortly thereafter. But how? [Nathan Baggs] show us what it took to be a cracker in the year 2000,
as the first ... | 11 | 6 | [
{
"comment_id": "8165036",
"author": "Daniel",
"timestamp": "2025-08-18T11:46:16",
"content": "So what you’re saying is: Don’t show how you did it (because you might earn a bit of money on the way and that is bad) and instead just use a pre-made solution?I mean it’s not (only) about making a decade ... | 1,760,371,449.781243 | ||
https://hackaday.com/2025/08/17/practical-guide-to-pedal-powered-electrical-generators/ | Practical Guide To Pedal-Powered Electrical Generators | Maya Posch | [
"green hacks",
"Transportation Hacks"
] | [
"electrical generator",
"emergency power"
] | An adult human can produce about 100 Wh of mechanical power whilst cycling, which is a not inconsiderable amount if you can convert that to electricity with reasonable efficiency.
In a recent article
on
EDN
[T. K. Hareendran] goes over a few ways that you can turn the rotary motion of pedaling into usable electrical po... | 51 | 17 | [
{
"comment_id": "8164747",
"author": "Dr. Energy.",
"timestamp": "2025-08-18T02:07:10",
"content": "That should be 100 Watts of power.100 Watt-Hour is an amount of energy.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8165209",
"author": "Mr. Unit",... | 1,760,371,449.58521 | ||
https://hackaday.com/2025/08/16/from-smartphone-to-a-home-server/ | From Smartphone To A Home Server | Tyler August | [
"Android Hacks",
"Network Hacks"
] | [
"android",
"docker",
"home-assistant",
"homelab"
] | Some people like their homelabs to be as big and fancy as possible, with racks of new or surplus server hardware sucking down power. [Hardware Haven] evidently has the opposite idea, given he just made a video about making the cheapest,
smallest server possible: an Android phone
.
Sure, it’s not going to be streaming t... | 27 | 11 | [
{
"comment_id": "8164219",
"author": "Dude",
"timestamp": "2025-08-17T06:33:40",
"content": "The diode was used for its voltage drop, to bring the 5 V supply down to a believable battery voltageNote that the diode forward voltage depends on the current you draw through it. The normal assumption of 0... | 1,760,371,449.64506 | ||
https://hackaday.com/2025/08/16/morphlex-the-tpu-filament-that-goes-soft-after-you-print-it/ | MorPhlex: The TPU Filament That Goes Soft After You Print It | Maya Posch | [
"3d Printer hacks"
] | [
"FDM",
"FDM 3D printing",
"TPU"
] | In FDM 3D printing cycles TPU is a bit of a special filament. Not so much because of its properties, but because it’s rather stretchy even as a filament, which makes especially printing certain hardness grades of TPU into somewhat of an nightmare. An interesting new contender here comes from a company called BIQU, who ... | 6 | 4 | [
{
"comment_id": "8164076",
"author": "M",
"timestamp": "2025-08-16T23:02:27",
"content": "cycles -> circles",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8164098",
"author": "the gambler",
"timestamp": "2025-08-16T23:44:07",
"content": "how is thi... | 1,760,371,449.496309 | ||
https://hackaday.com/2025/08/16/2025-one-hertz-challenge-stm32-blinks-in-under-50-bytes/ | 2025 One Hertz Challenge: STM32 Blinks In Under 50 Bytes | Lewin Day | [
"Microcontrollers"
] | [
"2025 Hackaday One Hertz Challenge",
"stm32",
"STM32F4"
] | Many of us have run a Blink program on a microcontroller before. It’s effectively the “Hello, World!” of the embedded space. However, few of us have ever thought about optimizing our Blink code to be as miniscule as possible.
But that’s precisely what [Rudra Lad] did for this entry into the 2025 One Hertz Challenge!
Th... | 9 | 4 | [
{
"comment_id": "8164023",
"author": "ALX_skater",
"timestamp": "2025-08-16T20:51:36",
"content": "Finally a worthwile contestant. I’m surprised though that this wasn’t done by FreddieChopin. He’s the definitive authority when it comes to STM32 code.",
"parent_id": null,
"depth": 1,
"rep... | 1,760,371,449.827581 | ||
https://hackaday.com/2025/08/16/the-nibbler-was-quite-a-scamp/ | The Nibbler Was Quite A Scamp | Al Williams | [
"Retrocomputing"
] | [
"National Semiconductor",
"SC/MP"
] | The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made everyone wanted a piece of the action. National Semiconductor produced its SC/MP. That was technically the Simple Cost-effective Micro Processor, but it was commonly known as Sca... | 39 | 13 | [
{
"comment_id": "8163983",
"author": "BT",
"timestamp": "2025-08-16T19:06:01",
"content": "Oh sothat’swhat SC/MP stands for, thanks! Only 50+ years too late!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8163991",
"author": "jawnhenry",
"timestamp": "... | 1,760,371,449.911699 | ||
https://hackaday.com/2025/08/16/metric-imperial-and-flexibility/ | Metric, Imperial, And Flexibility | Elliot Williams | [
"Hackaday Columns",
"Rants"
] | [
"imperial",
"metric",
"newsletter",
"religious war",
"units"
] | Al Williams wrote up
a seemingly innocent piece on a couple of rules-of-thumb to go between metric and US traditional units
, and the comment section went wild! Nothing seems to rile up the Hackaday comment section like the choice of what base to use for your unit system. I mean, an idealized version of probably an anc... | 89 | 34 | [
{
"comment_id": "8163868",
"author": "alloydog",
"timestamp": "2025-08-16T14:06:06",
"content": "Don’t forget car tyres: diametre in inches snd width in millimetres.Being an old git who went to school just as the UK went metric means I’m happy with either system. In fact, more than once, I have meas... | 1,760,371,450.029046 | ||
https://hackaday.com/2025/08/16/how-to-convert-a-drain-into-a-hydropower-facility/ | How To Convert A Drain Into A Hydropower Facility | John Elliot V | [
"green hacks"
] | [
"drainage",
"gravitation water vortex power plant",
"hydroelectric",
"hydropower"
] | Over on his YouTube channel [Construction General] shows us how to
convert a drain into a hydropower facility
. This type of hydroelectric facility is known as a
gravitation water vortex power plant
. The central structure is a round basin which includes a central drain. The water feeds into the basin through a series ... | 31 | 9 | [
{
"comment_id": "8163819",
"author": "lespaul1963",
"timestamp": "2025-08-16T11:18:14",
"content": "Now it’s YoutubeShorts-a-day?FFS, what’s next? TikTok? Most of us here are not brainrotten zombies looking for another clickbaity dopamine shot.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,371,450.103205 | ||
https://hackaday.com/2025/08/16/walter-is-a-tiny-cellular-modem-for-your-projects/ | Walter Is A Tiny Cellular Modem For Your Projects | Tyler August | [
"Microcontrollers",
"Wireless Hacks"
] | [
"GSM module",
"IoT"
] | It wasn’t that long ago that projects with cellular connectivity were everywhere, but with 2G no longer universally available, glory days of cheap 2G modules seem to be on their way out. So when [Data Slayer] titled his
video “You’ve Never Seen Cellular Like This”
about a new GSM radio module, we couldn’t help but thin... | 21 | 4 | [
{
"comment_id": "8163787",
"author": "JustSayin",
"timestamp": "2025-08-16T08:56:36",
"content": "plenty of cheaper 4g options out there that will give you Mbps.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8163796",
"author": "Urgon",
"tim... | 1,760,371,450.158747 | ||
https://hackaday.com/2025/08/14/diy-wind-turbine-gets-a-3-phase-rectifier/ | DIY Wind Turbine Gets A 3-Phase Rectifier | Al Williams | [
"green hacks"
] | [
"3-phase",
"rectifier"
] | [Electronoobs] is using some brushless motors to make a DIY wind turbine. His recent video isn’t about the turbine itself, but a crucial electronic part: the
three-phase rectifier
. The reason it is so important is due to the use of brushless motors. Normal motors are not ideal for generating power for several reasons,... | 18 | 5 | [
{
"comment_id": "8162898",
"author": "NerdWorld",
"timestamp": "2025-08-14T20:07:31",
"content": "Pushing 1,5 kW through heatsink designed for a 7805 doing maybe 800 mA peak… yeah hope he’s got some eye protection cause it’s gonna be one hell of a fireworks when it pops.",
"parent_id": null,
... | 1,760,371,451.079253 | ||
https://hackaday.com/2025/08/14/2025-one-hertz-challenge-blinking-an-led-with-the-aid-of-radio-time/ | 2025 One Hertz Challenge: Blinking An LED With The Aid Of Radio Time | Lewin Day | [
"contests",
"Radio Hacks"
] | [
"2025 Hackaday One Hertz Challenge",
"led",
"ne567",
"time station"
] | If you want to blink an LED once every second, you could use just about any old timer circuit to create a 1 Hz signal. Or, you could go the complicated route like [Anthony Vincz]
and grab 1 Hz off a radio clock instead.
The build is an entry for the
2025 One Hertz Challenge
, with [Anthony] pushing himself to whip up a... | 3 | 3 | [
{
"comment_id": "8162862",
"author": "Dave Boyer",
"timestamp": "2025-08-14T19:26:46",
"content": "As far as modernisation of older PCs is concerned, a very precise 1Hz clock signal can be obtained from PCI-express clock pins. Just need to divide it with a microcontroller or some 7400 ICs.",
"pa... | 1,760,371,450.417282 | ||
https://hackaday.com/2025/08/14/for-americans-only-estimating-celsius-and-other-mental-metrics/ | For Americans Only: Estimating Celsius And Other Mental Metrics | Al Williams | [
"Hackaday Columns",
"Rants",
"Slider"
] | [
"mental math",
"metric"
] | I know many computer languages, but I’ve struggled all my life to learn a second human language. One of my problems is that I can’t stop trying to translate in my head. Just like Morse code, you need to understand things directly, not translate. But you have to start somewhere. One of the reasons metric never caught on... | 194 | 47 | [
{
"comment_id": "8162764",
"author": "The Solutor",
"timestamp": "2025-08-14T17:12:52",
"content": "You are too optimist, most Americans aren’t even able to spell “Celsius” correctly (Selsius), let alone doing math from “Harry Potter” units to SI / IS :)",
"parent_id": null,
"depth": 1,
... | 1,760,371,450.913311 | ||
https://hackaday.com/2025/08/14/3d-printing-a-self-cleaning-water-filter/ | 3D Printing A Self-cleaning Water Filter | Al Williams | [
"green hacks"
] | [
"coanda effect",
"water filter"
] | No one likes cleaning out water spouts. [NeedItMakeIt] wanted to collect rainwater and was interested in using a Coanda filter that those used on hydroelectric plants to separate out debris. Ultimately, he
decided to design his own and 3D print it
.
The design uses a sloping surface with teeth on it to coax water to go... | 22 | 9 | [
{
"comment_id": "8162701",
"author": "Joseph Eoff",
"timestamp": "2025-08-14T15:47:07",
"content": "We weren’t clear from the video of exactly where the debris was going with the last version.The crap falls straight through and goes down the rest of the downspout, presumably to the sewer connection.... | 1,760,371,450.655013 | ||
https://hackaday.com/2025/08/14/how-the-widget-revolutionized-canned-beer/ | How The Widget Revolutionized Canned Beer | Lewin Day | [
"Featured",
"Interest",
"Original Art",
"Science",
"Slider"
] | [
"beer",
"beverage",
"beverage engineering",
"guinness",
"widget"
] | Walk into any pub and order a pint of Guinness, and you’ll witness a mesmerizing ritual. The bartender pulls the tap, fills the glass two-thirds full, then sets it aside to settle before topping it off with that iconic creamy head. But crack open a can of Guinness at home, and something magical happens without any thea... | 76 | 18 | [
{
"comment_id": "8162657",
"author": "ford",
"timestamp": "2025-08-14T14:19:15",
"content": "But why? What’s the need for that kind of stupid, consumerist ritual? At home when I drinkŻubrbeer I just open a can and drink it. No need to pour it into a glass. Beer is all about alcohol and taste, not wa... | 1,760,371,451.026583 | ||
https://hackaday.com/2025/08/14/hacking-the-bluetooth-enabled-anker-prime-power-bank/ | Hacking The Bluetooth-Enabled Anker Prime Power Bank | Maya Posch | [
"Reverse Engineering"
] | [
"bluetooth low energy",
"custom firmware",
"powerbank"
] | Selling power banks these days isn’t easy, as you can only stretch the reasonable limits of capacity and output wattage so far. Fortunately there is now a new game in town, with ‘smart’ power banks, like the Anker one that
[Aaron Christophel] recently purchased for reverse-engineering
. It features Bluetooth (BLE), a ‘... | 35 | 12 | [
{
"comment_id": "8162556",
"author": "Stephen Mewller",
"timestamp": "2025-08-14T11:12:01",
"content": "added a signature check to later firmware updatesThanks Maya! Sometimes a news is extremely informative what companies to avoid. I’m also pointing at a certain 3d-printer company. Rossmann was rig... | 1,760,371,450.485371 | ||
https://hackaday.com/2025/08/14/steampunk-copper-pc-is-as-cool-as-it-runs/ | Steampunk Copper PC Is As Cool As It Runs | Tyler August | [
"computer hacks"
] | [
"copper pipe",
"pc",
"steampunk",
"wall mounted",
"water cooled"
] | Copper! The only thing it does better than conduct heat is conduct a great steampunk vibe. [Billet Labs]’ latest video is an
artfully done wall PC that makes full use of both of those properties
.
The parts are what you’d expect in a high-end workstation PC: a Ryzen 9 and an 3090Ti with oodles of RAM. It’s the cooling ... | 26 | 10 | [
{
"comment_id": "8162536",
"author": "Stephen",
"timestamp": "2025-08-14T10:36:10",
"content": "This looks like the sort of computer Agatha Heterodyne would build in the Girl Genius comic books:https://www.girlgeniusonline.com/comic.php?date=20070618",
"parent_id": null,
"depth": 1,
"rep... | 1,760,371,451.191177 | ||
https://hackaday.com/2025/08/15/why-lordes-clear-cd-has-so-many-playback-issues/ | Why Lorde’s Clear CD Has So Many Playback Issues | Maya Posch | [
"digital audio hacks"
] | [
"audio cd",
"red book audio cd"
] | Despite the regularly proclaimed death of physical media, new audio albums are still being published on CD and vinyl. There’s something particularly interesting about Lorde’s new album
Virgin
however — the CD is a completely clear disc. Unfortunately there have been many reports of folks struggling to get the unique di... | 72 | 21 | [
{
"comment_id": "8163484",
"author": "Mark Topham",
"timestamp": "2025-08-15T15:39:24",
"content": "Somebody want to explain this comment:“That said, it seems that very little of the laser’s light actually makes it back to the pickup’s sensor, which means that the gain gets probably cranked up to 11... | 1,760,371,451.372459 | ||
https://hackaday.com/2025/08/15/this-week-in-security-the-ai-hacker-fortmajeure-and-project-zero/ | This Week In Security: The AI Hacker, FortMajeure, And Project Zero | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks"
] | [
"ai",
"darpa",
"project zero",
"This Week in Security"
] | One of the hot topics currently is using LLMs for security research. Poor quality reports written by LLMs have become the bane of vulnerability disclosure programs. But there is an equally interesting effort going on to put LLMs to work doing actually useful research. One such story is
[Romy Haik] at ULTRARED, trying t... | 5 | 3 | [
{
"comment_id": "8163466",
"author": "Ostracus",
"timestamp": "2025-08-15T14:43:08",
"content": "“It doesn’t actually want to find a vulnerability. One of the marks of security researchers is the near obsession they have with finding a great score.”Couple more rounds of evolution will produce a secu... | 1,760,371,451.125523 | ||
https://hackaday.com/2025/08/15/teletext-around-the-world-still/ | Teletext Around The World, Still | Al Williams | [
"Retrocomputing"
] | [
"teletext",
"videotex"
] | When you mention Teletext or Videotex, you probably think of the 1970s British system, the well-known system in France, or the short-lived US attempt to launch the service. Before the Internet, there were all kinds of crazy ways to deliver customized information into people’s homes. Old-fashioned? Turns out Teletext is... | 17 | 9 | [
{
"comment_id": "8163383",
"author": "Steve",
"timestamp": "2025-08-15T11:10:43",
"content": "It’s important not to confuse teletext delivery in analogue composite VBI with the continued running of teletext services.Many European countries have continued to use the same 40×25 WST system long after a... | 1,760,371,451.265402 | ||
https://hackaday.com/2025/08/15/open-source-lithium-titanate-battery-management-system/ | Open Source Lithium-Titanate Battery Management System | Maya Posch | [
"Battery Hacks"
] | [
"battery management system",
"bms",
"Lithium-titanate battery"
] | Lithium-titanate (LTO) is an interesting battery chemistry that is akin to Li-ion but uses Li
2
TiO
3
nanocrystals instead of carbon for the anode. This makes LTO cells capable of much faster charging and with better stability characteristics, albeit at the cost of lower energy density. Much like LiFePO
4
cells, this m... | 9 | 6 | [
{
"comment_id": "8163300",
"author": "Holger, DM5TT",
"timestamp": "2025-08-15T08:05:25",
"content": "Very Cool!Just for information: many energy harvesters (TQ BQ25570, ePeas, etc.) have a highly configurable storage interface. So they easily can be adjusted for LTO, LiFePo4, etc.The BQ25570 is abl... | 1,760,371,451.416225 | ||
https://hackaday.com/2025/08/14/rediscovering-microsofts-oddball-music-generator-from-the-1990s/ | Rediscovering Microsoft’s Oddball Music Generator From The 1990s | Lewin Day | [
"Musical Hacks"
] | [
"microsoft",
"midi",
"music"
] | There has been a huge proliferation in AI music creation tools of late, and a corresponding uptick in the number of AI artists appearing on streaming services. Well before the modern neural network revolution, though, there was an earlier tool in this same vein.
[harke] tells us all about Microsoft Music Producer 1.0
,... | 8 | 8 | [
{
"comment_id": "8163245",
"author": "WTF Detector",
"timestamp": "2025-08-15T05:28:13",
"content": "Personally, I could go for some Defiant Jazz. But only 5 minutes of it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8163436",
"author": "Maave",
"ti... | 1,760,371,451.459018 | ||
https://hackaday.com/2025/08/14/calibration-good-old-calibration/ | Calibration, Good Old Calibration | Al Williams | [
"Tool Hacks"
] | [
"calibration",
"dmm"
] | Do you calibrate your digital meters? Most of us don’t have the gear to do a proper calibration, but [Mike Wyatt] shares his simple way to calibrate his DMMs using a
precision resistor coupled with a thermistor
. The idea is to use a standard dual banana plug along with a 3D-printed housing to hold the simple electroni... | 6 | 5 | [
{
"comment_id": "8163154",
"author": "Vinny",
"timestamp": "2025-08-15T02:39:51",
"content": "The link for the calibration is wrong.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8163469",
"author": "Al Williams",
"timestamp": "2025-08-15T14... | 1,760,371,451.497299 | ||
https://hackaday.com/2025/08/14/bench-top-wireless-power-transmission/ | Bench-Top Wireless Power Transmission | John Elliot V | [
"High Voltage"
] | [
"Class-E Tesla Coil",
"Solid State Tesla Coil",
"SSTC",
"tesla coil",
"Wireless Power Transmission"
] | [mircemk] has been working on
wireless power transmission
. Using a Class-E Tesla coil with 12 turns on the primary and 8 turns on the secondary and a 12 volt input he can send a few milliwatts to power an LED over a distance of more than 40 centimeters or power a 10 watt bulb over a distance of about 10 centimeters. W... | 8 | 3 | [
{
"comment_id": "8163140",
"author": "mythoughts62",
"timestamp": "2025-08-15T02:21:24",
"content": "IMHO, that’s not a Tesla coil. That’s an oscillator driving an air-core transfomer. I don’t see a resonant secondary providing high voltage RF.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,371,451.909147 | ||
https://hackaday.com/2025/08/15/this-polaroid-esque-ocr-machine-turns-text-to-braille-in-the-wild/ | This Polaroid-esque OCR Machine Turns Text To Braille In The Wild | Navarre Bartz | [
"Arduino Hacks",
"Raspberry Pi"
] | [
"accessibility",
"blind",
"braille",
"computer",
"computer vision",
"impaired",
"ocr",
"raspberry pi",
"read",
"seeing",
"tesseract-ocr",
"vision"
] | One of the practical upsides of improved computer vision systems and machine learning has been the ability of computers to translate text from one language or format to another. [Jchen] used this to develop
Braille Vision
which can turn inaccessible text into braille on the go.
Using a headless Raspberry Pi 4 or 5 runn... | 2 | 2 | [
{
"comment_id": "8163779",
"author": "ono",
"timestamp": "2025-08-16T08:09:01",
"content": "It´s more akin to a ticket printer than “Polaroid”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8163793",
"author": "tyju5tyjt",
"timestamp": "2025-08-16T09:5... | 1,760,371,452.038904 | ||
https://hackaday.com/2025/08/15/suggested-schematic-standards/ | Suggested Schematic Standards | Al Williams | [
"Misc Hacks"
] | [
"schematics"
] | We often think that if a piece of software had the level of documentation you usually see for hardware, you wouldn’t think much of it. Sure, there are exceptions. Some hardware is beautifully documented, and poorly documented software is everywhere. [Graham Sutherland’s] been reviewing schematics and put together some ... | 45 | 18 | [
{
"comment_id": "8163710",
"author": "WestfW",
"timestamp": "2025-08-16T02:23:24",
"content": "I like to make an “edit history” layer to document the changes I make, which I guess you could skip with careful use of git or equivalent…",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,371,452.002611 | ||
https://hackaday.com/2025/08/15/2025-one-hertz-challenge-educational-tool-becomes-10-stopwatches/ | 2025 One Hertz Challenge: Educational Tool Becomes 10 Stopwatches | Lewin Day | [
"Misc Hacks"
] | [
"smart response pe",
"stopwatch",
"watch"
] | Around the globe, some classrooms are using fancy digital handheld devices to let people answer questions. One such example of this hardware is the Smart Response PE. These devices are largely useless outside the classroom,
so [Ray Burne] decided to hack one for our 2025 One Hertz Challenge.
The Smart Response PE devic... | 2 | 2 | [
{
"comment_id": "8163744",
"author": "paulvdh",
"timestamp": "2025-08-16T05:02:03",
"content": "He has also turned one of these into an RPN calculator. (I think I like this guy).And how much power does this CC2533 use? In the calculator he also put in a hard on/off switch, and a LiFePo4 battery.Appa... | 1,760,371,452.080181 | ||
https://hackaday.com/2025/08/15/liberating-a-collapsible-chair-from-a-single-piece-of-wood/ | Liberating A Collapsible Chair From A Single Piece Of Wood | John Elliot V | [
"classic hacks"
] | [
"Collapsible Chair",
"woodworking"
] | Over on his YouTube channel our hacker [GrandpaAmu]
liberates a collapsible chair from a single piece of wood
.
With the assistance of an extra pair of hands, but without any power tools in sight, this old master marks up a piece of wood and then cuts a collapsible chair out of it. He uses various types of saw, chisels... | 11 | 10 | [
{
"comment_id": "8163619",
"author": "i alone possess the truth",
"timestamp": "2025-08-15T20:14:10",
"content": "So cool! Beautiful.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8163625",
"author": "mayhem",
"timestamp": "2025-08-15T20:27:11",
... | 1,760,371,451.865448 | ||
https://hackaday.com/2025/08/15/2025-one-hertz-challenge-an-arduino-based-heart-rate-sensor/ | 2025 One Hertz Challenge: An Arduino-Based Heart Rate Sensor | Lewin Day | [
"contests"
] | [
"2025 Hackaday One Hertz Challenge",
"heart rate",
"heart rate sensor",
"pulse oximeter",
"Pulse oximetry"
] | How fast does your heart beat? It’s a tough question to answer, because our heart rate changes all the time depending on what we’re doing and how our body is behaving. However, [Ludwin] noted that resting heart rates often settle somewhere near 60 bpm on average. Thus,
they entered a heart rate sensor to our 2025 One H... | 2 | 2 | [
{
"comment_id": "8163762",
"author": "Ewald",
"timestamp": "2025-08-16T06:14:55",
"content": "With pulse rate you probably mean Oxygen saturation (SpO2)?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8164238",
"author": "mtr",
"timestamp": "2025-08-17... | 1,760,371,452.15036 | ||
https://hackaday.com/2025/08/15/gentle-processing-makes-better-rubber-that-cracks-less/ | Gentle Processing Makes Better Rubber That Cracks Less | Lewin Day | [
"Engineering",
"Featured",
"Science"
] | [
"materials",
"materials science",
"rubber",
"vulcanization"
] | Rubber! It starts out as a goopy material harvested from special trees, and is then processed into a resilient, flexible material used for innumerable important purposes. In the vast majority of applications, rubber is prized for its elasticity, which eventually goes away with repeated stress cycles, exposure to heat, ... | 19 | 7 | [
{
"comment_id": "8163546",
"author": "TG",
"timestamp": "2025-08-15T17:57:08",
"content": "I heard of a method to chemically revitalize old dried and hardened rubber by boiling it in wintergreen oil. So that does not work, in case anybody else is tempted to try it. Definitely stinks up your shop, th... | 1,760,371,452.221128 | ||
https://hackaday.com/2025/08/15/hackaday-podcast-episode-333-nightmare-whiffletrees-18650-safety-and-a-telephone-twofer/ | Hackaday Podcast Episode 333: Nightmare Whiffletrees, 18650 Safety, And A Telephone Twofer | 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 week.
In Hackaday news,
get your Supercon 2025 tickets
while they’re hot! Also,
the One Hertz Challenge
ticks on, but time is running out. You... | 8 | 3 | [
{
"comment_id": "8163541",
"author": "CityZen",
"timestamp": "2025-08-15T17:35:10",
"content": "I wish the little embedded player thingy had a volume control. The volume level of the podcast is much higher than other things that play on my system. I have to turn the system volume down, but then othe... | 1,760,371,452.271989 | ||
https://hackaday.com/2025/08/20/floss-weekly-episode-843-money-usually-helps/ | FLOSS Weekly Episode 843: Money Usually Helps | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"FLOSS Weekly",
"kde",
"kdenlive"
] | This week
Jonathan
and
Dan
chat with
Farid Abdelnour
about Kdenlive! It’s top quality video editing software, and happens to be what we use to edit the show! What’s next for the project, and how can you help? Watch to find out!
https://kdenlive.org/
https://kdenlive.org/news/releases/25.08.0/
https://www.estudio.gunga.... | 0 | 0 | [] | 1,760,371,452.11619 | ||
https://hackaday.com/2025/08/20/instant-macropad-just-add-qmk/ | Instant Macropad: Just Add QMK | Al Williams | [
"Hackaday Columns",
"how-to",
"Peripherals Hacks"
] | [
"keyboard",
"keypad",
"macropad",
"pi pico",
"QMK"
] | I recently picked up one of those
cheap macropads
(and wrote about it, of course). It is surprisingly handy and quite inexpensive. But I felt bad about buying it. Something like that should be easy to build yourself. People build keyboards all the time now, and with a small number of keys, you don’t even have to scan a... | 2 | 2 | [
{
"comment_id": "8166562",
"author": "irox",
"timestamp": "2025-08-21T00:39:57",
"content": "Cool to see a deeper drive into QMK!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8166568",
"author": "brad",
"timestamp": "2025-08-21T00:55:59",
"conten... | 1,760,371,452.318521 | ||
https://hackaday.com/2025/08/20/building-a-robotic-arm-without-breaking-the-bank/ | Building A Robotic Arm Without Breaking The Bank | Maya Posch | [
"Robots Hacks"
] | [
"diy robot arm"
] | There are probably at least as many ways to construct a robotic arm as there are uses for them. In the case of [Thomas Sanladerer] his primary requirement for the robotic arm
was to support a digital camera
, which apparently has to be capable of looking vaguely menacing in a completely casual manner. Meet Caroline, wh... | 2 | 2 | [
{
"comment_id": "8166752",
"author": "Portal",
"timestamp": "2025-08-21T13:11:29",
"content": "GLaDOS 😍",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8166803",
"author": "Cabba",
"timestamp": "2025-08-21T15:46:49",
"content": "I watched the video... | 1,760,371,452.397707 | ||
https://hackaday.com/2025/08/20/death-of-the-cheque-australia-moves-on/ | Death Of The Cheque: Australia Moves On | Lewin Day | [
"Current Events",
"Featured",
"Misc Hacks",
"Original Art",
"Slider"
] | [
"banks",
"checks",
"cheques",
"payment"
] | Check (or cheques) have long been a standard way for moving money from one bank account to another. They’re essentially little more than a codified document that puts the necessary information in a standard format to ease processing by all parties involved in a given transaction.
The check was once a routine, if tediou... | 108 | 20 | [
{
"comment_id": "8166345",
"author": "Vinny",
"timestamp": "2025-08-20T14:40:48",
"content": "Here in Brazil a report from our bank federation in January 2025 said that check usage is down 95.87% since 1995, and 18.4% in comparison to 2023, accounting for 0.5% of the financial operations in the coun... | 1,760,371,452.837049 | ||
https://hackaday.com/2025/08/20/thermal-batteries-for-lower-carbon-industrial-processes/ | Thermal Batteries For Lower Carbon Industrial Processes | Navarre Bartz | [
"green hacks"
] | [
"chrome oxide",
"chromia",
"e-brick",
"heat energy",
"industrial process",
"refractory brick",
"thermal battery",
"thermal storage"
] | Heating things up is one of the biggest sources of cost and emissions for many industrial processes we take for granted. Most of these factories are running around the clock so they don’t have to waste energy cooling off and heating things back up, so how can you match this 24/7 cycle to the intermittent energy provide... | 39 | 6 | [
{
"comment_id": "8166295",
"author": "Pete",
"timestamp": "2025-08-20T12:00:37",
"content": "What we really need is seasonal energy storage. Eg. capture excess solar energy during the summer to use for heating during the winter.That’s a harder problem to solve, at least economically, as it implies ... | 1,760,371,454.799162 | ||
https://hackaday.com/2025/08/20/reviving-a-piece-of-yesterdays-tomorrow/ | Reviving A Piece Of Yesterday’s Tomorrow | Tyler August | [
"digital audio hacks",
"Repair Hacks"
] | [
"minidisc",
"oled display"
] | To anyone who remembers Y2K, Sony’s MiniDisc format will probably always feel futuristic. That goes double for Sony’s MZ-RH1, the last MiniDisk recorder ever released, back in 2006. It’s barely larger than the diminutive disks, and its styling is impeccable. There’s a reason they’ve become highly collectible and sell f... | 12 | 5 | [
{
"comment_id": "8166230",
"author": "JustSayin",
"timestamp": "2025-08-20T08:13:44",
"content": "Minidisc were okay., but at 64mm diameter with a 340gb capacity (later HI-MD hit 1gb). I was always more impressed by Dataplay’s 32mm diameter 500 gb capacity. It was unfortunate that the company made... | 1,760,371,454.851915 | ||
https://hackaday.com/2025/08/19/using-ultra-wideband-for-3d-location-and-tracking/ | Using Ultra-Wideband For 3D Location And Tracking | John Elliot V | [
"Microcontrollers",
"Radio Hacks"
] | [
"3D Location and Tracking",
"AI Thinker BU03",
"Ultra-Wideband Module"
] | Interested in playing with ultra-wideband (UWB)? [Jaryd] recently put together a fairly comprehensive
getting started guide featuring the AI Thinker BU03
that looks like a great place to start. These modules can be used to determine distance between two of them to an accuracy in the order of 10 centimeters, and they ca... | 15 | 6 | [
{
"comment_id": "8166215",
"author": "Abur",
"timestamp": "2025-08-20T07:05:50",
"content": "in FiRa UWB spec the “base stations” are called anchors.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8166497",
"author": "Jii",
"timestamp": "2025... | 1,760,371,454.60905 | ||
https://hackaday.com/2025/08/13/flyback-converter-revealed/ | Flyback Converter Revealed | Al Williams | [
"Parts"
] | [
"flyback",
"SPICE"
] | As [Sam Ben-Yaakov] points out in a recent video, you don’t often see flyback converters these days. That’s because there are smarter ways to get the same effect, which is to convert between two voltages. If you work on old gear, you’ll see plenty of these, and going through the analysis is educational, even if you’ll ... | 10 | 5 | [
{
"comment_id": "8162452",
"author": "shinsukke",
"timestamp": "2025-08-14T07:58:11",
"content": "Ahh yes the fuzzy feeling on your fingers because flyback wall wart manufacturers are allergic to small good quality class Y caps and low making transformers with enough leakage inductance it can probab... | 1,760,371,454.944018 | ||
https://hackaday.com/2025/08/13/2025-one-hertz-challenge-digital-clock-built-with-analog-timer/ | 2025 One Hertz Challenge: Digital Clock Built With Analog Timer | Lewin Day | [
"clock hacks"
] | [
"555",
"555 timer",
"Arduino Uno",
"clock"
] | You can use a microcontroller to build a clock. After all, a clock is just something that counts the passage of time. The only problem is that microcontrollers can’t track time very
accurately.
They need some kind of external timing source that doesn’t drift as much as the microcontroller’s primary clock oscillator. To... | 1 | 1 | [
{
"comment_id": "8162975",
"author": "George",
"timestamp": "2025-08-14T21:40:14",
"content": "Analog timer?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,371,454.424094 | ||
https://hackaday.com/2025/08/13/digital-etch-a-sketch-also-plays-snake/ | Digital Etch-A-Sketch Also Plays Snake | Lewin Day | [
"Misc Hacks"
] | [
"ESP32",
"etch a sketch",
"toy"
] | The Etch-A-Sketch has been a popular toy for decades. It can be fun to draw on, but you have to get things right the first time, because there’s no undo button.
[Tekavou] decided to recreate this popular toy in digital form instead to give it more capabilities.
The build relies on an Inkplate e-paper screen as a displa... | 2 | 2 | [
{
"comment_id": "8162275",
"author": "BT",
"timestamp": "2025-08-13T23:27:54",
"content": "It can be fun to draw on, but you have to get things right the first time, because there’s no undo button.You don’t have to explain what that’s like to HaD commentors! :-P",
"parent_id": null,
"depth":... | 1,760,371,454.561435 | ||
https://hackaday.com/2025/08/13/2025-one-hertz-challenge-a-game-of-life/ | 2025 One Hertz Challenge: A Game Of Life | Lewin Day | [
"contests"
] | [
"2025 Hackaday One Hertz Challenge",
"attiny85",
"conway",
"conways game of life",
"game of life"
] | The 2025 One Hertz Challenge asks you to build a project that does something once every second. While that has inspired a lot of clock and timekeeping builds, we’re also seeing some that do entirely different things on a 1 Hz period. [junkdust] has entered the contest with
a project that does something rather mathemati... | 6 | 1 | [
{
"comment_id": "8162214",
"author": "scott_tx",
"timestamp": "2025-08-13T20:22:49",
"content": "If I’m going to write Conway’s Game of Life I’m using ALL the pixels!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8162218",
"author": "threeve",
... | 1,760,371,454.478195 | ||
https://hackaday.com/2025/08/13/floss-weekly-episode-842-will-the-real-jq-please-stand-up/ | FLOSS Weekly Episode 842: Will The Real JQ Please Stand Up | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"FLOSS Weekly",
"JQ",
"json"
] | We’re back! This week
Jonathan
chats with
Mattias Wadman
and
Michael Farber
about JQ! It’s more than just a JSON parser, JQ is a whole scripting language! Tune in to find out more about it.
https://jqlang.github.io/jq/manual/
https://play.jqlang.org/
https://github.com/wader/jqjq
https://github.com/wader/fq
https://git... | 7 | 2 | [
{
"comment_id": "8162220",
"author": "TG",
"timestamp": "2025-08-13T20:33:10",
"content": "They might want to work on that initialism.. Do some A/B testing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8162231",
"author": "wader",
"timestam... | 1,760,371,454.893793 | ||
https://hackaday.com/2025/08/13/the-worlds-first-podcaster/ | The World’s First Podcaster? | Al Williams | [
"Hackaday Columns",
"History",
"Phone Hacks"
] | [
"budapest",
"telephone"
] | When do you think the first podcast occurred? Did you guess in the 1890s? That’s not a typo.
Telefonhírmondó
was possibly the world’s first true “telephone newspaper.” People in Budapest could dial a phone number and listen to what we would think of now as radio content. Surprisingly, the service lasted until 1944, alt... | 12 | 6 | [
{
"comment_id": "8162209",
"author": "macsimki",
"timestamp": "2025-08-13T20:05:21",
"content": "interesting to see two carbon microphones used in tandem to get more power on the lines. or probably two separate lines. and the cone with microphone over the grand piano.",
"parent_id": null,
"d... | 1,760,371,454.728739 | ||
https://hackaday.com/2025/08/13/pcb-business-card-plays-pong-attracts-employer/ | PCB Business Card PlaysPong, Attracts Employer | Tyler August | [
"Games",
"PCB Hacks"
] | [
"pcb business card",
"pong",
"stm32"
] | Facing the horrifying realization that he’s going to graduate soon, EE student [Colin Jackson] AKA [Electronics Guy] needed a business card. Not just any business card: a PCB business card. Not just any PCB business card:
a PCB business card that can play pong.
[Colin] was heavily inspired by the card [Ben Eater] was h... | 12 | 5 | [
{
"comment_id": "8162122",
"author": "Pedro",
"timestamp": "2025-08-13T16:46:25",
"content": "Without making it open-source for others to replicate it’s just pure, facebook-grade vanity. I’m not interested in your skills, I want to open a github and have a fun hardware project to hack with.",
"p... | 1,760,371,454.523469 | ||
https://hackaday.com/2025/08/13/ore-formation-introduction-and-magmatic-processes/ | Ore Formation: Introduction And Magmatic Processes | Tyler August | [
"Featured",
"Original Art",
"Science"
] | [
"Earth science",
"minerals",
"ore"
] | Hackaday has a long-running series on
Mining and Refining
, that tracks elements of interest on the human-made road from rocks to riches. What author Dan Maloney doesn’t address in that series is the natural history that comes before the mine. You can’t just plunk down a copper mine or start squeezing oil from any old ... | 10 | 7 | [
{
"comment_id": "8162084",
"author": "RP",
"timestamp": "2025-08-13T14:58:43",
"content": "That was a very interesting article",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8162202",
"author": "Tyler August",
"timestamp": "2025-08-13T19:53:1... | 1,760,371,455.002474 | ||
https://hackaday.com/2025/08/13/josef-prusa-warns-open-hardware-3d-printing-is-dead/ | Josef Prusa Warns Open Hardware 3D Printing Is Dead | Ian Bos | [
"3d Printer hacks"
] | [
"3d printing",
"Joseph Prusa",
"patent law",
"patent troll",
"prusa"
] | It’s hard to overstate the impact desktop 3D printing has had on the making and hacking scene. It drastically lowered the barrier for many to create their own projects, and much of the prototyping and distribution of parts and tools that we see today simply wouldn’t be possible via traditional means.
What might not be ... | 141 | 31 | [
{
"comment_id": "8162004",
"author": "Harvie.CZ",
"timestamp": "2025-08-13T11:16:48",
"content": "I hear people talking a lot about Voron, but haven’t investigated it yet… How does it compare to modern commercial desktop FDM printers?",
"parent_id": null,
"depth": 1,
"replies": [
{... | 1,760,371,455.429694 | ||
https://hackaday.com/2025/08/13/running-guitar-effects-on-a-playstation-portable/ | Running Guitar Effects On A PlayStation Portable | Aaron Beckendorf | [
"digital audio hacks",
"PSP Hacks"
] | [
"audio effects",
"distortion",
"electric guitar",
"guitar effect",
"guitar effects",
"latency",
"sony psp"
] | If your guitar needs more distortion, lower audio fidelity, or another musical effect, you can always shell out some money to get a dedicated piece of hardware. For a less conventional route, though,
you could follow [Brek Martin]’s example
and reprogram a handheld game console as a digital effects processor.
[Brek] st... | 8 | 2 | [
{
"comment_id": "8162112",
"author": "SETH",
"timestamp": "2025-08-13T16:27:04",
"content": "I would suggest a randomize all parameters button for chaotic exploration. Is JUCE, or puredata being used for the audio API? I could write this in C, but real-time audio is above my understanding currentl... | 1,760,371,455.197467 | ||
https://hackaday.com/2025/08/12/thats-no-moon-er-selectric/ | That’s No Moon, Er, Selectric | Al Williams | [
"Retrocomputing"
] | [
"Juki",
"Selectric",
"typewriter"
] | If you learned to type anytime in the mid-part of the 20th century, you probably either had or wanted an IBM Selectric. These were workhorses and changed typing by moving from typebars to a replaceable element. They were expensive, though worth it since many of them still work (including mine). But few of us could affo... | 5 | 4 | [
{
"comment_id": "8161943",
"author": "macsimki",
"timestamp": "2025-08-13T07:37:47",
"content": "“by moving from typebars to a replaceable wheel”. Ball. I think you meant to write ball. the wheels were slower but way cheaper to make. moving from the mechanical realm to the electronical one.",
"p... | 1,760,371,455.136293 | ||
https://hackaday.com/2025/08/12/creating-a-new-keyboard-flex-for-an-old-calculator/ | Creating A New Keyboard Flex For An Old Calculator | Lewin Day | [
"PCB Hacks",
"Repair Hacks"
] | [
"calculator",
"flat flex",
"flex PCB"
] | [Menadue] had a vintage Compucorp 326 calculator with an aging problem. Specifically, the flex cable that connects the button pad had turned corroded over time. However, thanks to the modern PCB industrial complex,
replacing the obscure part was relatively straightforward
!
The basic idea was simple enough: measure the... | 19 | 8 | [
{
"comment_id": "8161930",
"author": "ono",
"timestamp": "2025-08-13T06:50:15",
"content": "I have a similar problem. But it´s a whole keyboard, integrated into a venerable DOS era computer, with a nice matrix LCD. The whole works, except the membrane kb whose layers cracked. It is highly unobtainiu... | 1,760,371,455.86773 | ||
https://hackaday.com/2025/08/12/leds-that-flow-a-fluid-simulation-business-card/ | LEDs That Flow: A Fluid Simulation Business Card | Matt Varian | [
"handhelds hacks"
] | [
"business card",
"flip",
"rp2350"
] | Fluid-Implicit-Particle or FLIP is a method for simulating particle interactions in fluid dynamics, commonly used in visual effects for its speed. [Nick] adapted this technique into an impressive
FLIP business card
.
The first thing you’ll notice about this card is its 441 LEDs arranged in a 21×21 matrix. These LEDs ar... | 18 | 5 | [
{
"comment_id": "8161851",
"author": "Cody",
"timestamp": "2025-08-13T00:22:48",
"content": "That USB connector won’t last long. 0.6mm PCB is not very strong. It doesn’t look like it’s been made as a proper card edge connector either. The PCB would normally be beveled where they route off the shorti... | 1,760,371,455.528591 | ||
https://hackaday.com/2025/08/12/3d-printing-a-full-sized-kayak-in-under-a-day/ | 3D-Printing A Full-Sized Kayak In Under A Day | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"kayak",
"water"
] | If you want to get active out on the water, you could buy a new kayak, or hunt one down on Craigslist, Or, you could follow [Ivan Miranda]’s example,
and print one out instead
.
[Ivan] is uniquely well positioned to pursue a build like this. That’s because he has
a massive 3D printer which uses a treadmill as a bed
. I... | 25 | 17 | [
{
"comment_id": "8161772",
"author": "Steven Stewart",
"timestamp": "2025-08-12T20:38:01",
"content": "He got the filament for free.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8161783",
"author": "CityZen",
"timestamp": "2025-08-12T21:14:10",
"... | 1,760,371,455.725893 | ||
https://hackaday.com/2025/08/19/lisp-in-99-lines-of-c-with-tinylisp/ | Lisp In 99 Lines Of C With TinyLisp | Maya Posch | [
"Software Development"
] | [
"lisp"
] | As one of the oldest programming languages still in common use today, and essential for the first wave of Artificial Intelligence research during the 1950s and 60s, Lisp is often the focus of interpreters that can run on very low-powered systems. Such is the case with [Robert van Engelen]’s
TinyLisp
, which only takes ... | 13 | 6 | [
{
"comment_id": "8166233",
"author": "Harvey",
"timestamp": "2025-08-20T08:25:16",
"content": "They’re 99 horrid, terrible lines, no one would ever write. Simply atrocious to read. If the author got rid of the useless preprocessor macros and formatted the code, it would help heaps, but it wouldn’t b... | 1,760,371,455.612068 | ||
https://hackaday.com/2025/08/19/a-solderless-soluble-circuit-board/ | A Solderless, Soluble Circuit Board | Aaron Beckendorf | [
"PCB Hacks"
] | [
"3d printed circuits",
"circuit board",
"gallium",
"indium",
"liquid metal",
"PVA"
] | Anyone who’s spent significant amounts of time salvaging old electronics has probably wished there were a way to take apart a circuit board without desoldering it. [Zeyu Yan] et al seem to have had the same thought, and
designed circuit boards that can be dissolved and recycled
when they become obsolete. Read the
detai... | 25 | 10 | [
{
"comment_id": "8166120",
"author": "Maurycy Z",
"timestamp": "2025-08-20T01:05:16",
"content": "I wonder if this method would have problems becuase of liquid metal embrittlement?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8166363",
"author": "s... | 1,760,371,455.670694 | ||
https://hackaday.com/2025/08/19/roll-your-own-ssb-receiver/ | Roll Your Own SSB Receiver | Al Williams | [
"Wireless Hacks"
] | [
"gnu radio",
"ham radio",
"sdr",
"Single sided band",
"software-defined radio",
"ssb"
] | [Paul Maine] was experimenting with GNU Radio and an RTL-SDR dongle. He created
an SSB receiver
and, lucky for us, he documented it all in a video you can see below. He walks through how to generate SSB, too. If videos aren’t your thing, you can go back to the blog post from [Gary Schafer] that inspired him to make the... | 3 | 2 | [
{
"comment_id": "8166040",
"author": "Hardware ssb",
"timestamp": "2025-08-19T21:19:59",
"content": "Great article, thanks.If you’re into a somewhat more hardware defined ssb transceiver Charlie Morse,ZL2CM, has some great design walkthroughs on his chanel. He gets step by step through the design pr... | 1,760,371,455.565648 | ||
https://hackaday.com/2025/08/19/2025-one-hertz-challenge-atomic-decay-clock-is-accurate-but-not-precise/ | 2025 One Hertz Challenge: Atomic Decay Clock Is Accurate But Not Precise | Adam Zeloof | [
"clock hacks",
"contests"
] | [
"2025 Hackaday One Hertz Challenge",
"atomic clock",
"Geiger tube",
"geiger-muller",
"radioactive",
"radioactive decay"
] | At this point, atomic clocks are old news. They’ve been quietly keeping our world on schedule for decades now, and have been through several iterations with each generation gaining more accuracy. They generally all work under the same physical principle though — a radio signal stimulates a gas at a specific frequency, ... | 7 | 3 | [
{
"comment_id": "8165969",
"author": "alnwlsn",
"timestamp": "2025-08-19T19:05:54",
"content": "Thanks for the writeup! If you decide to check the status page, it’s only got an uptime of a couple days; there was an extended power outage this weekend. Got to start counting all over again. It was only... | 1,760,371,455.912834 | ||
https://hackaday.com/2025/08/19/food-irradiation-is-not-as-bad-as-it-sounds/ | Food Irradiation Is Not As Bad As It Sounds | Lewin Day | [
"Hackaday Columns",
"Science"
] | [
"electron beam",
"fda",
"food",
"food irradiation",
"gamma ray",
"gamma rays",
"radiation",
"radiatoin",
"who?",
"x-ray",
"X-Rays"
] | Radiation is a bad thing that we don’t want to be exposed to, or so the conventional wisdom goes. We’re most familiar with it in the context of industrial risks and the stories of nuclear disasters that threaten entire cities and contaminate local food chains. It’s certainly not something you’d want anywhere near your ... | 50 | 13 | [
{
"comment_id": "8165927",
"author": "Dionb",
"timestamp": "2025-08-19T17:43:50",
"content": "This guy likes to send various cameras through an electron beam irradiator for our viewing pleasure. Id imagine coming face to face with that feed horn/scanner would suck muchly.https://youtu.be/Uf4Ux4SlyT4... | 1,760,371,456.003988 | ||
https://hackaday.com/2025/08/19/the-vlf-transformation/ | The VLF Transformation | Al Williams | [
"Wireless Hacks"
] | [
"ham radio",
"loop antenna",
"vlf"
] | People have long been interested in very low frequency (VLF) radio signals. But it used to be you pretty much had to build your own receiver which, luckily, wasn’t as hard as building your own VHF or UHF gear. But there is a problem. These low frequencies have a very long wavelength and, thus, need very large antennas ... | 6 | 4 | [
{
"comment_id": "8165955",
"author": "Truth",
"timestamp": "2025-08-19T18:33:57",
"content": "I’ll just leave this here for people interested in the VLF band (3 to 30 kHz) and belowhttp://www.vlf.it/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8165966",
... | 1,760,371,456.043241 | ||
https://hackaday.com/2025/08/19/how-to-sink-a-ship-preparing-the-ss-united-states-for-its-final-journey/ | How To Sink A Ship: Preparing The SSUnited StatesFor Its Final Journey | Tom Nardi | [
"Current Events",
"Featured",
"Interest",
"Original Art"
] | [
"museum",
"ocean liner",
"preservation",
"restoration",
"ship",
"SS United States"
] | When we
last brought you word of the SS
United States
, the future of the storied vessel was unclear. Since 1996, the 990 foot (302 meter) ship — the largest ocean liner ever to be constructed in the United States — had been wasting away at Pier 82 in Philadelphia. While the
SS
United States
Conservancy
was formed in 2... | 82 | 20 | [
{
"comment_id": "8165801",
"author": "dahud",
"timestamp": "2025-08-19T14:13:31",
"content": "It’s not immediately obvious to me why having the funnels protrude above water level would be a problem. If anything, they’d serve as navigational aids for passing ships. Maybe they’re worried about the fun... | 1,760,371,456.261278 | ||
https://hackaday.com/2025/08/11/calipers-do-you-get-what-you-pay-for/ | Calipers: Do You Get What You Pay For? | Al Williams | [
"Tool Hacks"
] | [
"calipers",
"harbor freight",
"Mitutoyo"
] | Generally, you think that if you pay more for something, it must be better, right? But that’s not always true. Even if it is true at the lower end, sometimes premium brands are just barely better than the midrange. [Project Farm] looks at a bunch of different calipers — a constant fixture around the shop if you do any ... | 53 | 15 | [
{
"comment_id": "8161326",
"author": "dave b",
"timestamp": "2025-08-12T02:17:34",
"content": "“Generally, you think that if you pay more for something, it must be better, right?”Wrong. If you must pay more for something it means 1 thing, and 1 thing only. The company wants to charge more for their ... | 1,760,371,456.133136 | ||
https://hackaday.com/2025/08/11/watertight-and-wireless-in-one-go-the-diy-sea-scooter/ | Watertight And Wireless In One Go: The DIY Sea Scooter | Heidi Ulrich | [
"3d Printer hacks",
"Toy Hacks",
"Wireless Hacks"
] | [
"bluetooth",
"hull",
"print in place",
"sea scooter",
"underwater",
"watertight",
"wifi"
] | To every gadget, tool, or toy, you can reasonably think: ‘Sure I could buy this… but can I make it myself?’ And that’s where [Ben] decided he could, and got to work. On
a sea scooter
, to be exact.
This sea scooter was to be a fully waterproof, hermetically sealed 3D-printed underwater personal propulsion device, with ... | 26 | 11 | [
{
"comment_id": "8161247",
"author": "Rusty Cans",
"timestamp": "2025-08-11T23:53:43",
"content": "Someone needs to send this guy a book on “design for maintenance”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8161300",
"author": "TG",
"ti... | 1,760,371,456.660857 | ||
https://hackaday.com/2025/08/11/compliant-contacts-hacking-door-locks-with-pen-springs/ | Compliant Contacts: Hacking Door Locks With Pen Springs | Matt Varian | [
"hardware"
] | [
"Beagle Bone",
"home automation",
"RC filter",
"spring"
] | As you may have guessed given our name, we do love hacks around here, and this one is a great example of making some common, everyday things work in uncommon ways. [Nathan] sent in his hack to detect the
door lock position
in his basement.
Having a house that dates back to the 1890s, much of it was not very conducive t... | 12 | 8 | [
{
"comment_id": "8161128",
"author": "Steve",
"timestamp": "2025-08-11T20:45:10",
"content": "Hate to be that guy but why not use a microswitch like every other deadbolt sensor? This looks a lot less reliable and susceptible to dirt and corrosion.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,371,456.450252 | ||
https://hackaday.com/2025/08/11/building-a-trash-can-reverb/ | Building A Trash Can Reverb | Lewin Day | [
"Musical Hacks"
] | [
"plate reverb",
"reverb",
"trash",
"trashcan"
] | These days, if you want a reverb effect, you just dial up whatever software plugin most appeals to you and turn the dials to taste. However, [Something Physical] specialises in… physical things… and thus built a reverb the old fashioned way.
Using a trashcan, of course.
The concept is simple enough—the method of operat... | 6 | 4 | [
{
"comment_id": "8161067",
"author": "a_do_z",
"timestamp": "2025-08-11T19:08:18",
"content": "“Given it’s built around a piece of street furniture, [Something Physical] has dubbed this the Street-Verb.”Myself, I would have a called it “Oscar”. :-)",
"parent_id": null,
"depth": 1,
"repli... | 1,760,371,456.702362 | ||
https://hackaday.com/2025/08/11/neon-bulbs-theyre-a-gas/ | Neon Bulbs? They’re A Gas! | Al Williams | [
"classic hacks",
"Hackaday Columns",
"High Voltage",
"Slider"
] | [
"NE-2",
"neon bulb"
] | When you think of neon, you might think of neon signs or the tenth element, a noble gas. But there was a time when neon bulbs like the venerable NE-2 were the 555 of their day, with a seemingly endless number of clever circuits. What made this little device so versatile? And why do we see so few of them today?
Neon’s b... | 39 | 20 | [
{
"comment_id": "8160998",
"author": "smellsofbikes",
"timestamp": "2025-08-11T17:14:37",
"content": "My dad built some beautiful ring oscillators with neon bulbs, where the bulb blinker progression is set by the bulb breakdown. As a result I have a box of 2000 (minus what he used on his displays) ... | 1,760,371,456.605172 | ||
https://hackaday.com/2025/08/11/end-of-the-eternal-september-as-aol-discontinues-dial-up/ | End Of The Eternal September, As AOL Discontinues Dial-Up | Jenny List | [
"internet hacks"
] | [
"AOL",
"dial-up",
"internet"
] | If you used the internet at home a couple of decades or more ago, you’ll know the characteristic sound of a modem connecting to its dial-up server. That noise is a thing of the past, as we long ago moved to fibre, DSL, or wireless providers that are always on. It’s a surprise then to read that
AOL are discontinuing th... | 38 | 13 | [
{
"comment_id": "8160955",
"author": "J. Samson",
"timestamp": "2025-08-11T15:46:13",
"content": "Yahoo being owned by Verizon now…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8160960",
"author": "Tim Andersson",
"timestamp": "2025-08-11T1... | 1,760,371,456.526024 | ||
https://hackaday.com/2025/08/11/smartphone-hackability-or-a-pocket-computer-that-isnt/ | Smartphone Hackability, Or, A Pocket Computer That Isn’t | Arya Voronova | [
"Cellphone Hacks",
"Featured",
"Interest",
"Original Art",
"Slider"
] | [] | Smartphones boggle my mind a whole lot – they’re pocket computers, with heaps of power to spare, and yet they feel like the furthest from it. As far as personal computers go, smartphones are surprisingly user-hostile.
In the last year’s time, even my YouTube recommendations are full of people, mostly millennials, talki... | 86 | 23 | [
{
"comment_id": "8160926",
"author": "DainBramage",
"timestamp": "2025-08-11T14:55:52",
"content": "“…the lack of transparency is more akin to encasing an already reliable device in epoxy for no reason.”Please don’t give them any ideas.",
"parent_id": null,
"depth": 1,
"replies": []
},... | 1,760,371,457.078405 | ||
https://hackaday.com/2025/08/12/2025-one-hertz-challenge-abstract-aircraft-sculpture-based-on-lighting-regulations/ | 2025 One Hertz Challenge: Abstract Aircraft Sculpture Based On Lighting Regulations | Lewin Day | [
"contests",
"LED Hacks"
] | [
"2025 Hackaday One Hertz Challenge",
"attiny85",
"coin cell",
"led"
] | The 2025 One Hertz Challenge is really heating up with all kinds of projects that do
something
once every second. [The Baiko] has given us a rather abstract entry that
looks like a plane…if you squint at it under the right conditions
.
It’s actually quite an amusing abstract build. If you’ve ever seen planes flying in ... | 9 | 7 | [
{
"comment_id": "8161745",
"author": "Spacedog",
"timestamp": "2025-08-12T19:21:26",
"content": "<3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "8161790",
"author": "Glenn",
"timestamp": "2025-08-12T21:25:45",
"content": "Looks good to me. – bli... | 1,760,371,456.807428 | ||
https://hackaday.com/2025/08/12/design-review-lattepanda-mu-nas-carrier/ | Design Review: LattePanda Mu NAS Carrier | Arya Voronova | [
"Hackaday Columns",
"PCB Hacks",
"Slider"
] | [
"PCB design",
"pcb layout",
"project review"
] | It is a good day for design review!
Today’s board is the MuBook
, a Lattepanda Mu SoM (System-on-Module) carrier from [LtBrain], optimized for a NAS with 4 SATA and 2 NVMe ports. It is cheap to manufacture and put together, the changes are non-extensive but do make the board easier to assemble, and, it results in a dec... | 17 | 6 | [
{
"comment_id": "8161726",
"author": "regent",
"timestamp": "2025-08-12T18:12:05",
"content": "Cool writeup, as a software-toucher and EE amateur there are lots of design considerations I have no knowledge or intuition for.This carrier looks nice, it’s exactly what I thought of making when I saw tha... | 1,760,371,456.763006 | ||
https://hackaday.com/2025/08/12/continuous-path-3d-printed-case-is-clearly-superior/ | Continuous-Path 3D Printed Case Is Clearly Superior | Lewin Day | [
"3d Printer hacks",
"Parts"
] | [
"3d printer",
"enclosure",
"ESP32"
] | [porchlogic] had a problem. The desire was to print a crystal-like case for an ESP32 project, reminiscent of so many glorious game consoles and other transparent hardware of the 1990s. However, with 3D printing the only realistic option on offer, it seemed difficult to achieve a nice visual result. The solution? Custom... | 9 | 5 | [
{
"comment_id": "8161684",
"author": "LookAtDaShinyShiny",
"timestamp": "2025-08-12T16:15:40",
"content": "https://fullcontrol.xyz/#/modelshas been doing stuff like this for a while. Wondering why they didn’t slow the print down to go for a glass effect for the whole print with the petg?",
"par... | 1,760,371,456.955164 | ||
https://hackaday.com/2025/08/12/remembering-james-lovell-the-man-who-cheated-death-in-space/ | Remembering James Lovell: The Man Who Cheated Death In Space | Maya Posch | [
"Biography",
"Featured",
"History",
"Original Art",
"Slider",
"Space"
] | [
"biography"
] | Many people have looked Death in the eye sockets and survived to tell others about it, but few situations speak as much to the imagination as situations where there’s absolutely zero prospect of rescuers swooping in. Top among these is the harrowing tale of the Apollo 13 moon mission and its crew – commanded by James “... | 15 | 9 | [
{
"comment_id": "8161642",
"author": "BT",
"timestamp": "2025-08-12T14:22:39",
"content": "Surely the ultimate hack!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8161670",
"author": "rclark",
"timestamp": "2025-08-12T15:36:58",
"con... | 1,760,371,457.142091 | ||
https://hackaday.com/2025/08/12/when-a-badge-misses-the-mark-why-2025/ | The WHY 2025 Badge And Its 18650s | Jenny List | [
"cons",
"News"
] | [
"badgelife",
"electronic design",
"unprotected cells",
"WHY2025"
] | The largest European hacker camp this year was in the Netherlands — What Hackers Yearn (WHY) 2025 is the latest in the long-running series of four-yearly events from that country, and 2025 saw a move from the Flevoland site used by SHA2017 and MCH2021, back to just north of Alkmaar in Noord-Holland, where the OHM2013 ... | 38 | 11 | [
{
"comment_id": "8161581",
"author": "Sword",
"timestamp": "2025-08-12T11:26:38",
"content": "“The group that brought the 18650 concerns to light has some overlap with the group that left the WHY2025 badge project”No shock there and it seems much ado about very little. If my cellphone gets stabbed t... | 1,760,371,457.220604 | ||
https://hackaday.com/2025/08/12/current-source-mixes-old-school-and-new/ | Current Source Mixes Old School And New | Al Williams | [
"classic hacks",
"Tool Hacks"
] | [
"constant current source",
"Microchip PIC"
] | At first glance,
[RobBest]’s constant current source
looks old school. The box is somewhat old-fashioned, featuring switches and binding posts. Most importantly, there’s a large analog meter dominating the front panel. Then you notice the OLED display, and you know something’s up.
The device can source or sink a consta... | 4 | 3 | [
{
"comment_id": "8161543",
"author": "PinheadBE",
"timestamp": "2025-08-12T09:32:13",
"content": "Furthermore, the firmware is written in JAL, which is an exceptionally efficient and simple to learn language for 8-bit PIC’s. Simplier to learn and use than Arduino, with a ton of well-written librari... | 1,760,371,457.261688 | ||
https://hackaday.com/2025/08/11/physical-aimbot-shoots-for-success-in-valorant/ | Physical Aimbot Shoots For Success In Valorant | Lewin Day | [
"Misc Hacks"
] | [
"aimbot",
"mouse",
"Valorant"
] | Modern competitive games have a great deal of anti-cheat software working to make sure you can’t hack the games to get a competitive advantage.
[Kamal Carter] decided to work around this by building a physical aimbot for popular FPS
Valorant.
The concept is straightforward enough. [Kamal] decided to hardmount an optica... | 17 | 4 | [
{
"comment_id": "8161423",
"author": "Ploegmma",
"timestamp": "2025-08-12T05:54:36",
"content": "I don’t understand why you use a mechanical device to interface with a physical mouse. Why not just replace this with a simple HID enabled MCU like a cheap Arduino with HID support? Then you can send mou... | 1,760,371,457.312665 | ||
https://hackaday.com/2025/08/10/building-a-7-segment-shadow-clock/ | Building A 7-Segment Shadow Clock | Lewin Day | [
"clock hacks"
] | [
"clock",
"DS3231",
"ESP32",
"real time clock"
] | There are plenty of conventional timepieces out there in the world; we’ve also featured a great many that are aesthetically beautiful while being unreadably esoteric.
This neat “shadow clock” from [Smart Solutions for Home] is not conventional, but it’s still a clock you could use every day.
The display is made of four... | 6 | 2 | [
{
"comment_id": "8160246",
"author": "Karl Mueller",
"timestamp": "2025-08-10T12:16:34",
"content": "looks a little like a license plate. an arbitrary license plate renderer would be super handy for the ultimate getaway car",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,371,457.354499 | ||
https://hackaday.com/2025/08/10/cheap-thermal-camera-fits-the-bill/ | Cheap Thermal Camera Fits The Bill | Al Williams | [
"digital cameras hacks"
] | [
"ir camera",
"MLX90640"
] | If you want to save a little money on a thermal camera, or if you just enjoy making your own, you should have a look at [Evan Yu’s]
GitHub
repository, which has a well thought out project built around the MLX90640 and an ESP32. The cost is well under $100. You can watch it do its thing in the video below.
There’s a PCB... | 14 | 4 | [
{
"comment_id": "8160160",
"author": "ono",
"timestamp": "2025-08-10T08:37:39",
"content": "Current crop of Chinese thermal cam have a way higher resolution than that (256×192 or more) for a lower or similar price. But for sure it´s closed source, and the sensor they use have no marking. I´d really ... | 1,760,371,457.402287 | ||
https://hackaday.com/2025/08/09/sparcstation-1-finally-gets-attention/ | SparcStation 1+ Finally Gets Attention | Al Williams | [
"Retrocomputing"
] | [
"sparc",
"sparcstation",
"sun"
] | We can’t throw stones. [Leaded Solder] picked up a SparcStation 1+ in 2018 and found it only produced illegal instruction errors. We’re sure he’s like us and meant to get back to it, and, instead, it sat on the bench, taking up space. You eventually have to move it, though, so seven years later, it was time for
another... | 12 | 8 | [
{
"comment_id": "8160155",
"author": "Menno",
"timestamp": "2025-08-10T08:27:09",
"content": "Put the Ethernet fuse back and use net boot?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8160247",
"author": "Joshua",
"timestamp": "2025-08-10T1... | 1,760,371,457.697272 | ||
https://hackaday.com/2025/08/09/hacking-printed-circuit-board-to-create-casing-and-instrument-panels/ | Hacking Printed Circuit Board To Create Casing And Instrument Panels | John Elliot V | [
"hardware",
"PCB Hacks"
] | [
"casing",
"instrument panel",
"pcb",
"PDP-1",
"Printed Circuit Board"
] | Over on Hackaday.io our hackers [Angelo] and [Oscarv] are making
a replica of the PDP-1
. That is interesting in and of itself but the particularly remarkable feature of this project is its novel use of printed circuit boards for casing and instrument panels.
What does that mean in practice? It means creating
a KiCad f... | 11 | 8 | [
{
"comment_id": "8160034",
"author": "paulvdh",
"timestamp": "2025-08-10T03:07:49",
"content": "Quite a few years ago I found the PDF below. It’s a tutorial for this, only they use “raw” plated FR4, which is of course still a lot cheaper then buying PCB’s. It has some very nice details such as compe... | 1,760,371,457.653529 | ||
https://hackaday.com/2025/08/09/desk-top-peltier-powered-cloud-chamber-uses-desktop-parts/ | Desk Top Peltier-Powered Cloud Chamber Uses Desktop Parts | Tyler August | [
"Science"
] | [
"cloud chamber",
"peltier cooler",
"physics",
"radiation",
"water cooling"
] | There was a time when making a cloud chamber with dry ice and alcohol was one of those ‘rite of passage’ type science projects every nerdy child did. That time may or may not be passed, but we doubt many children are making cloud chambers quite like [Curious Scientist]’s
20 cm x 20 cm Peltier-powered desktop unit
.
The... | 6 | 4 | [
{
"comment_id": "8160070",
"author": "OG",
"timestamp": "2025-08-10T04:06:02",
"content": "Eh, cloud TANKS are much more visually interesting:https://www.youtube.com/watch?v=RypKl8MJPRE",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8160179",
"author... | 1,760,371,457.602893 | ||
https://hackaday.com/2025/08/09/2025-one-hertz-challenge-estimating-pi-with-an-arduino-nano-r4/ | 2025 One Hertz Challenge: Estimating Pi With An Arduino Nano R4 | Lewin Day | [
"Misc Hacks"
] | [
"arduino",
"mathematics",
"Monte Carlo",
"Monte Carlo method",
"Pi"
] | Humanity pretty much has Pi figured out at this point. We’ve calculated it many times over and are confident about what it is down to many,
many
decimal places. However, if you fancy estimating it with some electronic assistance,
you might find this project from [Roni Bandini] interesting.
[Roni] programmed an Arduino ... | 10 | 6 | [
{
"comment_id": "8159899",
"author": "Ecan Barnes",
"timestamp": "2025-08-09T20:19:02",
"content": "How is this related to the 1Hz Challenge?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8160181",
"author": "Elliot Williams",
"timestamp": "... | 1,760,371,457.752141 | ||
https://hackaday.com/2025/08/09/the-kilopixel-display/ | The Kilopixel Display | Jenny List | [
"cnc hacks"
] | [
"cnc",
"display",
"gantry"
] | Despite the availability of ready-made displays never being better, there are still some hardy experimenters who take on the challenge of making their own. In [Ben Holmen]’s case the display he built is somewhat unusual and not the most practical, but for us
a giant-sized wooden kilopixel display
is exactly what the wo... | 7 | 3 | [
{
"comment_id": "8159861",
"author": "Peter Knoppers",
"timestamp": "2025-08-09T18:21:21",
"content": "With rotating cubes (presuming two faces are along the axis of rotation) there are four faces that can face the viewer. He could have made it a 2-bits per pixel gray scale display for (almost) the ... | 1,760,371,457.867486 | ||
https://hackaday.com/2025/08/11/dont-say-this-diy-diskette-was-a-flop/ | Don’t Say This DIY Diskette Was A Flop | Tyler August | [
"Retrocomputing"
] | [
"3.5\" floppy disk",
"cnc",
"scratch built"
] | Sometimes, you build a thing because you need a thing. Sometimes, you do it just to see if you can. This project is in category two: [polymatt] didn’t need to
create a floppy disk from scratch-
– plenty of old disks still exist– but we’re glad he made the attempt because it makes for a fascinating video that’s embedded... | 21 | 9 | [
{
"comment_id": "8160836",
"author": "WTF Detector",
"timestamp": "2025-08-11T11:56:07",
"content": "Where’s the “imbue commenter with a sense of humor” link?Comment sections riddled with tinfoil-hat conspiracy-theorist nutjobs, all measure of bigotry (an article just the other day had someone in th... | 1,760,371,457.931791 | ||
https://hackaday.com/2025/08/11/the-trials-of-trying-to-build-an-automatic-filament-changer/ | The Trials Of Trying To Build An Automatic Filament Changer | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"filament",
"filament changer"
] | Running out of filament mid-print is a surefire way to ruin your parts and waste a lot of time. [LayerLab] was sick of having this problem, and so sought to find a proper solution. Unfortunately, between off-the-shelf solutions and homebrew attempts,
he was unable to solve the problem to his satisfaction.
[LayerLab] ha... | 17 | 7 | [
{
"comment_id": "8160873",
"author": "Slugsie",
"timestamp": "2025-08-11T13:05:32",
"content": "I’m surprised that 1KG spools still seem to be the norm, and most machines spool holding capabilities are built around such spools. I’m sure it’s time that bigger spools became at least an option. I reali... | 1,760,371,457.826817 | ||
https://hackaday.com/2025/08/10/amiga-programming-in-2025-with-amiblitz/ | Amiga Programming In 2025 With AmiBlitz | Tyler August | [
"Retrocomputing"
] | [
"amiga",
"game developement",
"retrocomputing",
"vibe coding"
] | Having owned an Amiga microcomputer is apparently a little bit like having shaken hands with Shoggoth: no one can escape unchanged from the experience. Thirty-two years on, [Neil] at The Retro Collective remains haunted by the memories — specifically, the memory of BlitzBasic 2, an Amiga-specific programming language h... | 30 | 7 | [
{
"comment_id": "8160701",
"author": "Johnu",
"timestamp": "2025-08-11T07:56:03",
"content": "I will remember the Amiga Power review of Skidmarks 2 forever:COWS! WHEELS! CARAVANS! GO!Truly it was the game of champions, bested only by Gravity Power which was a PD game that Amiga Power liked so much t... | 1,760,371,458.080223 | ||
https://hackaday.com/2025/08/10/hackaday-links-august-10-2025/ | Hackaday Links: August 10, 2025 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"apollo",
"archive",
"asphalt",
"astronaut",
"civil engineering",
"con",
"dam",
"gemini",
"hackaday links",
"hope",
"magazine",
"nasa",
"obituary",
"Popular Mechanics",
"reservoir",
"stem"
] | We lost a true legend this week with
the passing of NASA astronaut Jim Lovell
at the ripe old age of 97. Lovell commanded the ill-fated Apollo 13 mission back in 1970, and along with crewmates Jack Swigert and Fred Haise — along with just about every person working at or for NASA — he managed to guide the mortally woun... | 11 | 2 | [
{
"comment_id": "8160789",
"author": "Aknup",
"timestamp": "2025-08-11T10:34:42",
"content": "I wonder if moonlanding deniers on average acknowledge the Appolo 13 failed-to-land mission.Since they failed to land and all, and you’d think a failed mission is more likely than a successful one if you ar... | 1,760,371,458.167685 | ||
https://hackaday.com/2025/08/10/2025-one-hertz-challenge-using-industrial-relays-to-make-a-flasher/ | 2025 One Hertz Challenge: Using Industrial Relays To Make A Flasher | Lewin Day | [
"contests"
] | [
"2025 Hackaday One Hertz Challenge",
"electronic",
"electronics",
"flasher",
"flasher circuit",
"relay"
] | These days, if you want to flash some LEDs, you’d probably grab a microcontroller. Maybe you’d go a little more old-school, and grab a 555. However, [Jacob] is even more hardcore than that,
as evidenced by this chunky electromechanical flasher build.
[Jacob] goes into great detail
on his ancillary write-up,
describing ... | 8 | 3 | [
{
"comment_id": "8160476",
"author": "TG",
"timestamp": "2025-08-10T22:33:35",
"content": "Nice, I’ve had one of those in my junk drawer for decades. Congrats on finding a use for yours… Kinda.Eventually I assume mine will become a turn signal flasher with a fancy variable flash period. Maybe that’s... | 1,760,371,458.121782 |
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