url stringlengths 37 208 | title stringlengths 4 148 | author stringclasses 173
values | publish_date stringclasses 1
value | categories listlengths 0 12 | tags listlengths 0 27 | featured_image stringlengths 0 272 | content stringlengths 0 56.1k | comments_count int64 0 900 | scraped_comments_count int64 0 50 | comments listlengths 0 50 | scraped_at float64 1.76B 1.76B |
|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2022/02/06/open-hardware-dog-treat-dispenser-is-a-stepping-stone-for-behavioral-research/ | Open-Hardware Dog Treat Dispenser Is A Stepping Stone For Behavioral Research | Arya Voronova | [
"Raspberry Pi",
"Science"
] | [
"behavioral science",
"food dispenser",
"open hardware",
"open source hardware",
"pet food dispenser",
"raspberry pi",
"science",
"science equipment",
"scientific equipment",
"scientific paper"
] | The principles of open-source hardware are starting to make great strides in scientific research fields. [Walker Arce] tells us about his paper co-authored with [Jeffrey R. Stevens], about
a dog treat dispenser designed with scientific researchers in mind
– indispensable for behavior research purposes, and easily repro... | 13 | 7 | [
{
"comment_id": "6421776",
"author": "Miles",
"timestamp": "2022-02-06T16:23:24",
"content": "The 1960s through 80a shudders in horror at so much processing power wasted when a mechanical mechanism can do the same.Unless this has encrypted QR on the back of that disk to verify and track every treat,... | 1,760,372,797.959606 | ||
https://hackaday.com/2022/02/06/the-q2-a-pdp8-like-discrete-transistor-computer/ | The Q2, A PDP8-Like Discrete Transistor Computer | Dave Rowntree | [
"computer hacks"
] | [
"ALU",
"Bit serial",
"mosfet",
"PDP-8",
"Q2",
"raspberry pi",
"rust"
] | [Joe Wingbermuehle] has an interest in computers-of-old, and some past experience of building computers on perfboard from discrete transistors, so this next project,
Q2, is a complete implementation of a PDP8-like microcomputer on a single PCB
. Like the
DEC PDP-8
, this is a 12-bit machine, but instead of the diode-tr... | 39 | 13 | [
{
"comment_id": "6421745",
"author": "monsonite",
"timestamp": "2022-02-06T13:32:15",
"content": "Awesome – amazing what you can do with 1000 discrete transistors and a couple of 8K RAMs!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6421747",
"author": "... | 1,760,372,798.164357 | ||
https://hackaday.com/2022/02/06/ibm-palmtop-running-modern-modified-linux/ | IBM PalmTop Running Modern (Modified) Linux | Bryan Cockfield | [
"classic hacks",
"computer hacks"
] | [
"antique",
"aosc",
"command line",
"distribution",
"ibm",
"linux",
"palmtop",
"retro",
"retro computing",
"text",
"windows 95"
] | The handheld computing market might seem dominated by smartphones today, but before their mass adoption there were other offerings for those who needed some computing power on-the-go. If a 90s laptop was too bulky, there was always the IBM PalmTop which packed punch for its size-to-weight ratio, and for the era it was ... | 19 | 6 | [
{
"comment_id": "6421692",
"author": "olaf",
"timestamp": "2022-02-06T09:18:16",
"content": "I would say, if someone like to enjoy a vintage linux experience in his pocket he should look at one of the old Sharp Zaurus. I had them as PDA in the 2000er and it was possible to do almost everything than ... | 1,760,372,798.013837 | ||
https://hackaday.com/2022/02/05/openbikesensor-measures-close-calls/ | OpenBikeSensor Measures Close Calls | Robin Kearey | [
"Transportation Hacks"
] | [
"citizen science",
"cycling",
"cycling computer"
] | Cycling is fun, healthy, and good for the environment. But unfortunately it’s not always the safest of activities, as inconsiderate drivers can be a significant hazard to cyclists. Several countries, including Germany, France, and Belgium have introduced legislation mandating a minimum passing distance of at least 1.5 ... | 54 | 13 | [
{
"comment_id": "6421627",
"author": "jonmayo",
"timestamp": "2022-02-06T06:09:46",
"content": "very cool technology-wise and aesthetically pleasing in its own way.Might I propose a low-tech solution. a 1.5 meter dowel or which has a permanent market attached to it. Flexible enough to bend easily, a... | 1,760,372,798.441017 | ||
https://hackaday.com/2022/02/05/camping-for-25-thrift-store-hacks-to-keep-cozy/ | Camping For $25: Thrift Store Hacks To Keep Cozy | Ryan Flowers | [
"cooking hacks",
"Lifehacks"
] | [
"camping",
"cheap",
"diy",
"duck tape",
"on the cheap",
"repurposing",
"survival"
] | A hacker is somebody who’s always thinking creatively to solve problems, usually using what they have on hand. Sometimes that means using a 555 to build a CPU, and other times it means using a dead flashlight to start a fire. In the video below the break,
[Kelly] shows us a series of hacks
you can use while camping in ... | 18 | 8 | [
{
"comment_id": "6421619",
"author": "Steven",
"timestamp": "2022-02-06T05:13:43",
"content": "As housing prices continue to skyrocket, these sorts of skills are going to be useful for more than recreational camping trips.",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,372,798.353387 | ||
https://hackaday.com/2022/02/05/twist-promises-easier-quantum-programming/ | Twist Promises Easier Quantum Programming | Al Williams | [
"Software Development"
] | [
"quantum computing",
"qubit"
] | We keep trying to learn more about quantum computers. But the truth is, the way we program quantum computers — or their simulators — today will probably not have much in common with how we program them in the future. Think about it. Programming your PC is nothing like programming the ENIAC. So we expect we’ll see more ... | 17 | 3 | [
{
"comment_id": "6421592",
"author": "Frankel",
"timestamp": "2022-02-06T00:22:46",
"content": "Pardon if I interject here, but how is it teleportation if I force two entangled particles into a defined state by measuring one of them? There is a probability for either outcome. So I might measure up/d... | 1,760,372,797.737402 | ||
https://hackaday.com/2022/02/05/hdd-centrifuge-puts-covid-19-testing-lab-in-a-backpack/ | HDD Centrifuge Puts COVID-19 Testing Lab In A Backpack | Dan Maloney | [
"Medical Hacks"
] | [
"arduino",
"centrifuge",
"Covid-19",
"e-waster",
"hard drive",
"lamp",
"lateral flow",
"qPCR",
"SARS-CoV-2",
"testing"
] | Throughout this two-year global COVID-19 nightmare, one thing that has been sorely lacking is access to testing. “Flu-like symptoms” covers a lot of ground, and knowing if a sore throat is just a sore throat or something more is important enough that we’ve collectively plowed billions into testing. Unfortunately, the t... | 11 | 8 | [
{
"comment_id": "6421582",
"author": "Bsc",
"timestamp": "2022-02-05T23:41:04",
"content": "This test shows no ability to distinguish between covid and any other virus.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6422047",
"author": "combinatorylo... | 1,760,372,798.294166 | ||
https://hackaday.com/2022/02/09/mystery-effect-causing-leds-to-glow-during-reflow/ | Mystery Effect Causing LEDs To Glow During Reflow | Lewin Day | [
"Misc Hacks"
] | [
"capacitor",
"led",
"reflow"
] | Sometimes you notice something small that nevertheless you can’t explain. [Greg Davill] found himself in just such a situation this week when he noticed some green LEDs
glowing dimly when reflowing some boards.
Naturally, [Greg] set out to investigate.
The green LEDs were wired up as power indicators, and [Greg] suspec... | 34 | 17 | [
{
"comment_id": "6422890",
"author": "IIVQ",
"timestamp": "2022-02-09T12:29:22",
"content": "That’s the magic smoke breaking in!I wonder whoever first makes this a feature (pcb testing during reflow? self-powered reflow?)",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,372,798.241009 | ||
https://hackaday.com/2022/02/09/a-guide-to-milling-pcbs-at-home/ | A Guide To Milling PCBs At Home | Chris Lott | [
"how-to"
] | [
"cam",
"CNC milling",
"EDA tools",
"Logic simulation",
"PCB home milling",
"spice simulation",
"vacuum tubes"
] | If you keep up with various retro vacuum tube projects, you probably have run across [UsagiElectric] aka [David]’s various PCBs that he makes on his own Bridgeport EZ-Track 3-axis milling machine — massively oversized for the job, as he puts it. In a recent video, [David] walks us through the steps of making a sample P... | 31 | 11 | [
{
"comment_id": "6422853",
"author": "vib",
"timestamp": "2022-02-09T09:10:36",
"content": "“First of all, a Bridgeport mill is a pretty good sized, and heavy, tool. ”I, would, say you, have a, problem with, punctuation.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,372,797.810418 | ||
https://hackaday.com/2022/02/08/working-model-reveals-amazing-engineering-of-webbs-mirror-actuators/ | Working Model Reveals Amazing Engineering Of Webb’s Mirror Actuators | Dan Maloney | [
"Space"
] | [
"actuator",
"flexure",
"hexapod",
"james webb space telescope",
"jwst",
"mirror",
"stepper",
"stewart"
] | We end up covering a lot of space topics here on Hackaday, not because we’re huge space nerds — spoiler alert: we are — but because when you’ve got an effectively unlimited budget and a remit to make something that cannot fail, awe-inspiring engineering is often the result. The mirror actuators on the James Webb Space ... | 30 | 11 | [
{
"comment_id": "6422826",
"author": "Truth",
"timestamp": "2022-02-09T07:00:28",
"content": "Brilliant video.After watching it I would guess that testing all 108 stepper motors (18 mirror segments with 6 single point of failure stepper motors per mirror) was a high priority test.",
"parent_id":... | 1,760,372,798.084218 | ||
https://hackaday.com/2022/02/08/wordle-reverse-engineering-and-automated-solving/ | Wordle Reverse-Engineering And Automated Solving | Dave Rowntree | [
"Software Hacks"
] | [
"Absurdle",
"puzzle",
"python",
"reverse engineering",
"Wordle"
] | Simplified Absurdle decision tree for a single letter guess from a set of three possible options
We don’t know about you, but we have mixed feelings about online puzzle fads. On one hand, they are great tool to help keep one sharp, but they’re just
everywhere
. The latest social-media driven fad, Wordle, may be a littl... | 15 | 8 | [
{
"comment_id": "6422775",
"author": "Magic Smoke",
"timestamp": "2022-02-09T03:17:49",
"content": "There is also an RShiny app:https://pacha.dev/blog/2022/01/14/shinywordle-a-shiny-app-to-solve-the-game-worldle-and-the-power-of-regular-expressions/",
"parent_id": null,
"depth": 1,
"repl... | 1,760,372,798.498635 | ||
https://hackaday.com/2022/02/08/a-tuning-fork-clock-with-discreet-logic/ | A Tuning Fork Clock, With Discrete Logic | Dave Rowntree | [
"clock hacks"
] | [
"clock",
"electromagnetics",
"timepiece",
"tuning fork",
"upcycling",
"Vibrmatic"
] | [Willem Koopman aka Secretbatcave] was looking at a master clock he has in his collection which was quite a noisy device, but wanted to use the matching solenoid slave clock mechanism he had to hand. Willem is a fan of old-school ‘sector’ clocks, so proceeded to build his ideal time piece — Vibrmatic — exactly the way ... | 8 | 4 | [
{
"comment_id": "6422704",
"author": "limroh",
"timestamp": "2022-02-09T00:42:02",
"content": "“Vibrmatic” ???Shouldn’t this be “vibromatic”?What does either one mean and why is it a tag too?Is it the name [Willem Koopman aka Secretbatcave] gave his build? than maybe not tag worthy?",
"parent_id... | 1,760,372,799.039243 | ||
https://hackaday.com/2022/02/08/3d-printed-maglev-switches-are-so-hot-right-now/ | 3D Printed Maglev Switches Are So Hot Right Now | Tom Nardi | [
"Peripherals Hacks"
] | [
"3d printed keyboard",
"hall effect sensor",
"keyboard",
"magnetic keyboard"
] | It doesn’t happen all the time, but over the years we’ve noticed that once we feature a project, a number of very similar builds often find themselves in our tip line before too long. Of course, these aren’t copycats; not enough time has passed for some competitive maker to spin up their own version. No, most of the ti... | 31 | 9 | [
{
"comment_id": "6422673",
"author": "Greg A",
"timestamp": "2022-02-08T22:05:56",
"content": "i was wondering how this could possibly work, since my fdm printer simply isn’t repeatable enough to get satisfactory results on a part that’s supposed to slide in a sleeve…i would have to do a lot of trim... | 1,760,372,799.541801 | ||
https://hackaday.com/2022/02/08/palm-portable-keyboard-goes-wireless/ | Palm Portable Keyboard Goes Wireless | Kristina Panos | [
"Peripherals Hacks",
"Wireless Hacks"
] | [
"Adafruit Feather",
"nRF52840",
"palm",
"Palm portable keyboard"
] | Long ago when digital portables where in their infancy, people were already loath to type on tiny keyboards, stylus or not. So Palm made a sweet little portable keyboard that would fold up and fit in your cargo pocket. And what do we have now for luxury typing on the go? Rubber roll-up jelly keebs? That’s a hard no fro... | 19 | 6 | [
{
"comment_id": "6422641",
"author": "K",
"timestamp": "2022-02-08T20:16:27",
"content": "Hey, I have this keyboard and a palm tungsten. I believe the keyboard uses IR. I still need to turn it on and see how it works, but I think I’ll mod in a processor so I can use it as a PDA.",
"parent_id": n... | 1,760,372,798.985242 | ||
https://hackaday.com/2022/02/07/lazier-web-scraping-is-better-web-scraping/ | “Lazier” Web Scraping Is Better Web Scraping | Donald Papp | [
"Software Hacks"
] | [
"python",
"web scraping",
"xhr"
] | Ever needed to get data from a web page? Parsing the content for data is called web scraping, and [Doug Guthrie] has a
few tips for making the process of digging data out of a web page simpler and more efficient
, complete with code examples in Python. He uses getting data from Yahoo Finance as an example, because it’s... | 13 | 5 | [
{
"comment_id": "6422155",
"author": "rpavlik",
"timestamp": "2022-02-07T14:36:47",
"content": "Nice! I am also a fan of finding these apis where available. I figure it’s even polite, since it’s less load on their server… Now if only I could figure out how to extract the data from my local health de... | 1,760,372,798.873377 | ||
https://hackaday.com/2022/02/07/as-light-as-plastic-as-strong-as-steel/ | As Light As Plastic; As Strong As Steel | Al Williams | [
"News",
"Science"
] | [
"Chemistry",
"mit",
"polymers"
] | Chemical engineers at MIT have pulled off something that was once thought impossible. By polymerizing material in two different directions at once, they have created
a polymer that is very strong
. You can read a pre-print version of the paper over on
Arxiv
.
Polymers owe many of their useful properties to the fact tha... | 38 | 13 | [
{
"comment_id": "6422087",
"author": "metalman",
"timestamp": "2022-02-07T09:57:30",
"content": "this stuff is going to be a big help in hydrogen storage and use,and could be the key to lighter ,stronger ,gas cylinders of all kinds,thinking of compsite cylinders made in braiders,and then hey!,space ... | 1,760,372,799.113175 | ||
https://hackaday.com/2022/02/06/cannonball-mold-makes-a-dandy-integrating-sphere-for-laser-measurements/ | Cannonball Mold Makes A Dandy Integrating Sphere For Laser Measurements | Dan Maloney | [
"Laser Hacks",
"Science"
] | [
"barium sulfate",
"cannonball",
"diffuser",
"integrating sphere",
"integration",
"laser",
"optical",
"PVA",
"spectrometer",
"Ulbricht"
] | It’s an age-old riddle: if you have a perfect sphere with a perfectly reflective inner surface, will light bounce around inside it forever? The answer is pretty obvious when you think it through, but that doesn’t mean that you can’t put the principle to use, as we see with
this homemade Ulbricht sphere
for optical meas... | 9 | 4 | [
{
"comment_id": "6422074",
"author": "Hans",
"timestamp": "2022-02-07T08:51:45",
"content": "The link to ” blasting the Bayer filter off a cheap CCD camera” is wrong.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6422241",
"author": "Tom Nardi",
... | 1,760,372,798.923182 | ||
https://hackaday.com/2022/02/06/making-something-gorgeous-from-framing-lumber/ | Making Something Gorgeous From Framing Lumber | Matthew Carlson | [
"home hacks"
] | [
"framing lumber",
"nightstand",
"woodworker",
"woodworking"
] | Here at Hackaday, we typically cover things that blink, bleep, and occasionally they might even bloop. However, the name of the site is Hackaday. We’re about being clever, reusing things in new ways, and most importantly celebrating interesting projects. While not a traditional project that would grace the front page, ... | 17 | 9 | [
{
"comment_id": "6422023",
"author": "John",
"timestamp": "2022-02-07T03:17:23",
"content": "My TV stand/computer case is made of framing lumber in the form of white pine 2x4s and “seasoned” pallet wood. I gave it a coat of watered down white paint, and it looks nice and performs perfectly. I have a... | 1,760,372,799.458582 | ||
https://hackaday.com/2022/02/06/hackaday-links-february-6-2022/ | Hackaday Links: February 6, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"adsb",
"chromebook",
"de-orbit",
"DIY Fix it yourself",
"elon",
"flight tracking",
"full self driving",
"google",
"hackaday links",
"International Space Stat",
"iss",
"Point Nemo",
"RTL-SDR",
"tesla",
"twitter",
"ukraine"
] | Last week, the news was filled with stories of Jack Sweeney and his Twitter-bot that tracks the comings and goings of various billionaires in their private jets. This caught the attention of the billionaire-iest of them all, one Elon Musk, who took exception to the 19-year-old’s feat of data integration, which draws fr... | 41 | 10 | [
{
"comment_id": "6421989",
"author": "Raukk",
"timestamp": "2022-02-07T00:13:31",
"content": "Bonus points if the Tesla stop sign bug was caused by training data of real drivers rolling through stop signs.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "64219... | 1,760,372,799.389958 | ||
https://hackaday.com/2022/02/06/the-coolest-controller-mod-hands-down/ | The Coolest Controller Mod, Hands Down | Kristina Panos | [
"Games",
"Peripherals Hacks"
] | [
"assistive device",
"assistive technolgy",
"assistive technology",
"Dualshock4",
"one handed"
] | Video games are a great way to relax, and sometimes get your heart rate up at the same time. But unless you’re playing something like
Dance Dance Revolution
, the controls pretty much always require the use of both hands. Even the old Atari controller benefited from using the other hand for support.
But what if you don... | 15 | 11 | [
{
"comment_id": "6421945",
"author": "Redhatter (VK4MSL)",
"timestamp": "2022-02-06T22:09:58",
"content": "> the standard DDR configuration of ←↓↑→That’s the vi cursor movement… ← (H), ↓ (J), ↑ (K), → (L).I guess the makers of DDR must be vi users.",
"parent_id": null,
"depth": 1,
"repl... | 1,760,372,799.275917 | ||
https://hackaday.com/2022/02/06/no-arm-printer-driver-just-write-your-own/ | No ARM Printer Driver? Just Write Your Own | Matthew Carlson | [
"Peripherals Hacks",
"Raspberry Pi"
] | [
"printer",
"raspberry pi",
"tslp",
"zlp"
] | When you think of the small machines that print the sticky labels on packages, you might not expect to find a complex printer with its own programming language (ZPL). However, [Dan Pastusek] was looking around online and found a small label printer on everyone’s favorite online warehouse for a great price that suggeste... | 16 | 9 | [
{
"comment_id": "6421818",
"author": "Gautier",
"timestamp": "2022-02-06T18:20:42",
"content": "I did one ZPL driver for MSP430 twenty years back.Was pretty funny to throw graphics from an i2c flash chip to paper.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,372,799.596465 | ||
https://hackaday.com/2022/02/04/python-web-proxy-convinces-sonos-to-stream-youtube/ | Python Web Proxy Convinces Sonos To Stream YouTube | Dave Rowntree | [
"Software Hacks"
] | [
"audio",
"flask",
"mp4",
"python",
"pytube",
"sonos",
"streaming",
"web radio player",
"youtube"
] | [Maurice-Michel Didelot] owns a Sonos smart speaker, and was lamenting the devices inability (or plain unwillingness) to stream music from online sources without using a subscription service. YouTube Music will work, but being a subscription product there is a monthly fee, which sucks since you can listen to plenty of ... | 22 | 12 | [
{
"comment_id": "6421242",
"author": "Gravis",
"timestamp": "2022-02-04T22:34:39",
"content": "Yet another reasons to not buy Sonos crap: “the devices inability (or plain unwillingness) to stream music from online sources without using a subscription service.”",
"parent_id": null,
"depth": 1... | 1,760,372,799.673298 | ||
https://hackaday.com/2022/02/04/the-fifteen-dollar-linux-computer/ | The Fifteen Dollar Linux Computer | Jenny List | [
"computer hacks"
] | [
"Allwinner F1C100s",
"handheld",
"linux"
] | Over the years we’ve seen many small computer boards of various abilities, among them many powerful enough to be almost-useful Linux general purpose computers. We’ve also seen more than a few computers that claimed the impossible, usually an amazing spec for a tiny price tag. Here for once is a small computer that’s ne... | 66 | 26 | [
{
"comment_id": "6421136",
"author": "Stripey \"KNIVES ARE TINY SWORDS, SHEEPLE\" Type (@StripeyType)",
"timestamp": "2022-02-04T19:36:37",
"content": "The folks in r/cyberdeck were *BIG MAD* that this wasn’t simply a retail product. Having to explain price breaks at tape out quantities was going to... | 1,760,372,799.776552 | ||
https://hackaday.com/2022/02/04/copyright-what-you-need-to-know/ | Copyright, What You Need To Know | Jenny List | [
"Featured",
"Rants",
"Slider"
] | [
"copyright",
"totally not legal advice"
] | Last week brought the story of a group of crypto enthusiasts
who paid well over the going rate for a rare sci-fi book
, then proposed encoding scans of all its pages in a blockchain before making and selling NFTs of them. To guarantee their rarity the book was then to be burned. Aside from the questionable imagery surr... | 54 | 14 | [
{
"comment_id": "6421098",
"author": "Danjovic",
"timestamp": "2022-02-04T18:33:46",
"content": "I cant hel thinking of the guys NFTnizing the movie of the book birning in flames, lol!!Nevertheless, thanks for the article!",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,372,799.918132 | ||
https://hackaday.com/2022/02/04/hackaday-podcast-154-a-good-enough-cnc-stepper-motors-unrolled-smart-two-wire-leds-a-volcano-heard-around-the-world/ | Hackaday Podcast 154: A Good Enough CNC, Stepper Motors Unrolled, Smart Two-Wire LEDs, A Volcano Heard Around The World | Tom Nardi | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Join Hackaday Editor-in-Chief Elliot Williams and Staff Writer Dan Maloney for this week’s podcast as we talk about Elliot’s “defection” to another podcast, the pros and cons of CNC builds, and making Nixie clocks better with more clicking. We’ll explore how citizen scientists are keeping a finger on the pulse of plane... | 1 | 1 | [
{
"comment_id": "6421105",
"author": "BrightBlueJim",
"timestamp": "2022-02-04T18:44:36",
"content": "Yes, the interconnections that connect all of us together ARE like a web. A world-wide web, you could say.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,799.817555 | ||
https://hackaday.com/2022/02/04/adafruit-hack-chat-helps-you-copy-that-floppy/ | Adafruit Hack Chat Helps You Copy That Floppy | Tom Nardi | [
"Hackaday Columns",
"Slider"
] | [
"adafruit",
"data recovery",
"digital preservation",
"floppy",
"Hack Chat"
] | You might think the era of the 3.5 inch “floppy” disk is over, and of course, you’d be right. But when has that ever stopped hackers before? Just because these disks are no longer being manufactured doesn’t mean you can’t find them, or that the appropriate drives aren’t readily available. In fact, as
[Ladyada] explaine... | 22 | 9 | [
{
"comment_id": "6421064",
"author": "Iván Stepaniuk",
"timestamp": "2022-02-04T16:31:45",
"content": "Still plenty of expensive industrial equipment around, with floppies inside dusty documentation pouches that contain the only backup of the software needed to run the machines.",
"parent_id": n... | 1,760,372,799.982932 | ||
https://hackaday.com/2022/02/04/this-week-in-security-samba-wormhole-crypto-heist-and-a-bogus-cve/ | This Week In Security: Samba, Wormhole Crypto Heist, And A Bogus CVE | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"qnap",
"samba",
"This Week in Security"
] | Samba has a very serious vulnerability,
CVE-2021-44142
, that was just patched in new releases 4.13.17, 4.14.12, and 4.15.5.
Discovered by researchers at TrendMicro
, this unauthenticated RCE bug weighs in at a CVSS 9.9. The saving grace is that it requires the
fruit
VFS module to be enabled, which is used to support M... | 6 | 3 | [
{
"comment_id": "6421081",
"author": "Billly",
"timestamp": "2022-02-04T17:41:05",
"content": "Share and enjoy. Reality restored. Real men use irc btw.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6422061",
"author": "Sandra",
"timestamp":... | 1,760,372,800.023682 | ||
https://hackaday.com/2022/02/04/a-64-bit-raspberry-pi-os-at-last/ | A 64-Bit Raspberry Pi OS At Last | Jenny List | [
"Raspberry Pi"
] | [
"64bit",
"raspberry pi",
"Raspberry Pi OS",
"Raspbian"
] | Long-term Raspberry Pi watchers will have seen a lot of OS upgrades in their time, from the first Debian Squeeze previews through the Raspbian years to the current Raspberry Pi OS. Their latest OS version is something different though, and could be one of the most important releases in the platform’s history so far, as... | 42 | 10 | [
{
"comment_id": "6420996",
"author": "mime",
"timestamp": "2022-02-04T12:12:56",
"content": "how much difference will it make in performance?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6420997",
"author": "Viktor",
"timestamp": "2022-02-0... | 1,760,372,800.097122 | ||
https://hackaday.com/2022/02/04/modular-synth-pairs-perfectly-with-the-apple-ii/ | Modular Synth Pairs Perfectly With The Apple II | Chris Wilkinson | [
"Musical Hacks",
"Retrocomputing"
] | [
"apple II",
"dac",
"modular synth",
"synth",
"vintage computer"
] | We have a soft spot for synthesizers – seriously, who doesn’t? So when [Joshua Coleman]
combined his retro-looking DIY modular synth with the equally retro Apple II computer
, we just had to share it with you.
The two machines are paired using a vintage digital-to-analog logic controller pack. This DAC was originally u... | 4 | 1 | [
{
"comment_id": "6421036",
"author": "Christian Knopp",
"timestamp": "2022-02-04T15:03:31",
"content": "I miss Apple II BASIC. 😪I wish I could learn Python or such as easily as I did that language during my early teens…",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,372,800.37225 | ||
https://hackaday.com/2022/02/03/conveyor-belt-printer-mod-is-nearly-all-printed/ | Conveyor Belt Printer Mod Is Nearly All Printed | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"infinite build volume"
] | [Call Me Swal] wanted to experiment with large 3D prints. So he took a Hornet 3D printer and
designed a lot of 3D parts
to convert it into an “infinite” conveyor belt printer. It looks like — as you can see in the video below — that all the parts are 3D printed but you will still need to buy material for the actual bel... | 19 | 7 | [
{
"comment_id": "6420954",
"author": "Rumble_in_the_Jungle",
"timestamp": "2022-02-04T09:30:28",
"content": "Does the patent already expired?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6421022",
"author": "Tenaja",
"timestamp": "2022-02-0... | 1,760,372,800.212666 | ||
https://hackaday.com/2022/02/03/retrotechtacular-understanding-the-strength-of-structural-shapes/ | Retrotechtacular: Understanding The Strength Of Structural Shapes | Ryan Flowers | [
"Retrotechtacular"
] | [
"3d printing",
"aluminum",
"mechanical engineering",
"plastic",
"shapes",
"steel",
"structural engineering"
] | Strength. Rigidity. Dependability. The ability to bear weight without buckling. These are all things that we look for when we build a mechanical structure. And in today’s Retrotechtacular we take a closer look at the answer to a question: “What’s in A Shape?”
As it turns out, quite a lot. In a wonderful film by the pro... | 13 | 1 | [
{
"comment_id": "6420935",
"author": "three_d_dave",
"timestamp": "2022-02-04T07:07:43",
"content": "Starting at 3:28: In technical terms the 8 lead weights put too much stress on it – stress being the force per area, a factor complicated with bending. The top elements are under tensile stress and t... | 1,760,372,800.155352 | ||
https://hackaday.com/2022/02/03/3d-printing-goes-near-infrared/ | 3D Printing Goes Near Infrared | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"cyanine dye",
"Near Infrared"
] | Researchers at the University of Texas have been experimenting with optical 3D printing using near infrared (NIR) light instead of the more traditional ultraviolet. They claim to
have a proof of concept
and, apparently, using NIR has many advantages. The actual paper is paywalled, but there are several good summaries, ... | 17 | 5 | [
{
"comment_id": "6420713",
"author": "steelman",
"timestamp": "2022-02-04T00:11:02",
"content": "decreasing the wavelength of light used in 3D printing has its own problems, notably less resolution and slower curing speedNow, that sounds slightly bogus. Resolution of resin prints is indeed high but ... | 1,760,372,800.436702 | ||
https://hackaday.com/2022/02/03/getting-root-on-linux-amplifier-adds-new-inputs/ | Getting Root On Linux Amplifier Adds New Inputs | Tom Nardi | [
"home entertainment hacks",
"Linux Hacks"
] | [
"alsa",
"amplifier",
"Embedded Linux",
"smart speaker",
"sound bar"
] | We remember when getting Linux on your average desktop computer was a tricky enough endeavor that only those with the most luxurious of graybeards would even attempt it. A “Linux box” in those heady days was more than likely an outdated machine salvaged from the dumpster, side panel forever removed, cranking away in a ... | 26 | 5 | [
{
"comment_id": "6420644",
"author": "tomás zerolo",
"timestamp": "2022-02-03T21:05:58",
"content": "“After using a known exploit to get root access …”Having to resort to an exploit is already iffy: is the company complying with the GPL?",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,800.541635 | ||
https://hackaday.com/2022/02/03/keep-track-of-toilet-paper-usage-with-this-iot-roll-holder/ | Keep Track Of Toilet Paper Usage With This IoT Roll Holder | Dan Maloney | [
"home hacks"
] | [
"hall effect",
"IoT",
"NodeMCU",
"thingspeak",
"toilet paper"
] | Remember the Great Toilet Paper Crisis of 2020? We sure do, and it looks like our old friend [Vije Miller] does as well, while seemingly harboring a somewhat morbid fascination about how much paper every bathroom visitor is consuming. And to that end, we present
his IoT toilet sheet tracker
.
His 3D printed roll holder... | 51 | 28 | [
{
"comment_id": "6420620",
"author": "SteveS",
"timestamp": "2022-02-03T19:40:32",
"content": "What do I have to pay for you to not show this to the facilities department where I work?I can just see the memos now….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id... | 1,760,372,800.628185 | ||
https://hackaday.com/2022/02/03/remoticon-2021-colin-oflynn-zaps-chips-and-they-talk/ | Remoticon 2021 // Colin O’Flynn Zaps Chips (And They Talk) | Jenny List | [
"cons",
"Hackaday Columns",
"hardware",
"Security Hacks"
] | [
"2021 Hackaday Remoticon",
"ChipShouter",
"ChipWhisperer",
"EM injection",
"fault injection",
"power analysis"
] | One of the many fascinating fields that’s covered by Hackaday’s remit lies in the world of hardware security, working with physical electronic hardware to reveal inner secrets concealed in its firmware. Colin O’Flynn is the originator of the
ChipWhisperer
open-source analysis and fault injection board, and he is a mast... | 5 | 4 | [
{
"comment_id": "6420608",
"author": "CRJEEA",
"timestamp": "2022-02-03T18:37:44",
"content": "One improvement for sending a glitching pulse is to have feedback from the device and a variable delay. So you can say, cycle the power and then send a pulse at a specific time during boot and then if you ... | 1,760,372,800.479631 | ||
https://hackaday.com/2022/02/02/the-wanhao-duplicator-cnc-heat-sealer/ | The Wanhao Duplicator CNCHeat Sealer | Dave Rowntree | [
"3d Printer hacks"
] | [
"3d printer",
"fusing",
"gcode",
"heat exchanger",
"indenting",
"plastic",
"polyolefin"
] | One custom, compliant heat exchanger, coming right up!
[Thane Hunt] needed to find a way to make a variety of different heat-seal patterns on a fluid heat exchanger made from polyolefin film, and didn’t want all the lead time and expense of a traditional sealing press machined from a steel plate. Pattern prototyping me... | 19 | 9 | [
{
"comment_id": "6420327",
"author": "irox",
"timestamp": "2022-02-02T22:06:37",
"content": "My first through is that this might be useful for quickly prototyping/building flexible/soft robotics components. Likehttps://hackaday.com/blog/?s=soft+roboticsIt wouldn’t be as “3D” as casting methods, but... | 1,760,372,800.766959 | ||
https://hackaday.com/2022/02/02/defective-3d-printing-for-great-strength/ | Defective 3D Printing For Great Strength | Al Williams | [
"3d Printer hacks"
] | [
"high pressure",
"material science",
"metal 3d printing",
"titanium"
] | Most of us want our 3D prints to be perfect. But at Cornell University, they’ve been experimenting with deliberately introducing defects into printed titanium. Why? Because using a post-print treatment of heat and pressure they can
turn those defects into assets
, leading to a stronger and more ductile printed part.
Th... | 6 | 4 | [
{
"comment_id": "6420303",
"author": "Gravis",
"timestamp": "2022-02-02T20:21:46",
"content": "Anyone capable of being able to afford applying “extreme heat and pressure” to titanium doesn’t really have to worry about costs. This has “aerospace and military applications” written all over it.",
... | 1,760,372,800.671247 | ||
https://hackaday.com/2022/02/02/know-audio-a-mess-of-cables/ | Know Audio: A Mess Of Cables | Jenny List | [
"Hackaday Columns",
"home entertainment hacks",
"Slider"
] | [
"audio",
"audio cable",
"cables",
"oxygen free"
] | We’ve now spent several months in this series journeying through the world of audio, and along the way we’ve looked at the various parts of a Hi-Fi system from the speaker backwards to the source. It’s been an enjoyable ride full of technical detail and examining Hi-Fi myths in equal measure, but now it’s time to desce... | 101 | 29 | [
{
"comment_id": "6420263",
"author": "Christoph",
"timestamp": "2022-02-02T18:19:16",
"content": "Isn’t the skin effect a cable myth as well for audio frequencies? What portion of the wire impedance at 20kHz is actually caused by the skin effect? Not much, I think.",
"parent_id": null,
"de... | 1,760,372,800.913147 | ||
https://hackaday.com/2022/02/02/hackaday-invades-the-floss-weekly-podcast/ | Hackaday Invades TheFLOSS WeeklyPodcast | Tom Nardi | [
"News",
"Software Development"
] | [
"Hackaday Podcast",
"live stream",
"open source software"
] | Regular Hackaday readers will know that we’re big supporters of free/libre and open source software (FLOSS) around these parts. There’s an excellent chance you are too, as so many of the incredible projects you send our way make it a habit to share their innermost details, from firmware source code to the OpenSCAD file... | 0 | 0 | [] | 1,760,372,800.708645 | ||
https://hackaday.com/2022/02/02/underwater-tanks-turn-energy-storage-upside-down/ | Underwater Tanks Turn Energy Storage Upside-Down | Lewin Day | [
"Engineering",
"Featured",
"green hacks",
"Interest",
"Slider"
] | [
"pumped hydro",
"pumped storage",
"stensea",
"storage",
"underwater pumped hydro",
"underwater storage"
] | Pumped hydro storage is one of the oldest grid storage technologies, and one of the most widely deployed, too. The concept is simple – use excess energy to pump a lot of water up high, then run it back through a turbine when you want to get the energy back later.
With the rise in renewable energy deployments around the... | 129 | 31 | [
{
"comment_id": "6420207",
"author": "Col_Panek",
"timestamp": "2022-02-02T15:15:07",
"content": "I just had a sump pump crap out, so I’m negative on anything that combines water, electricity, and plumbing. Burying it is even worse.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,801.074402 | ||
https://hackaday.com/2022/02/02/building-forged-carbon-fiber-wings-for-radio-control-cars/ | Building Forged Carbon Fiber Wings For Radio Control Cars | Lewin Day | [
"Toy Hacks"
] | [
"3d printer",
"carbon fiber",
"chopped carbon",
"forged carbon",
"molds"
] | When it comes to building decent aerodynamic devices, you want to focus on getting your geometry accurate, and making sure your parts are strong enough to deal with the force they’re generating. This build from [Engineering After Hours] delivers on those fronts,
consisting of a high-downforce wing for a small RC car.
T... | 6 | 1 | [
{
"comment_id": "6420237",
"author": "kwikius",
"timestamp": "2022-02-02T16:50:42",
"content": "FRP ( Fibre Reinforced Plastic) is a wonder material from a pure engineering point of view, making it easy to create high performance designs, but at a huge cost to the environment, and so these days I f... | 1,760,372,801.177109 | ||
https://hackaday.com/2022/02/02/a-portable-projecting-pi-for-education/ | A Portable Projecting Pi For Education | Jenny List | [
"computer hacks",
"Raspberry Pi"
] | [
"cyberdeck",
"education",
"projector",
"raspberry pi"
] | We cover a lot of cyberdeck projects here at Hackaday, custom portable computers often built around the Raspberry Pi. It’s not often that we cover a computer that perfectly achieves and exceeds what a cyberdeck is trying to do without being a cyberdeck in any way, but
that’s what [
Subir Bhaduri
] has done
. In address... | 16 | 3 | [
{
"comment_id": "6420144",
"author": "none",
"timestamp": "2022-02-02T09:26:13",
"content": "The pee-pie? Pie-Pie? The pee-pee?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6420271",
"author": "Yimin Rong",
"timestamp": "2022-02-02T18:44:09... | 1,760,372,801.125744 | ||
https://hackaday.com/2022/02/03/supersized-power-bank-built-from-an-ev-battery/ | Supersized Power Bank Built From An EV Battery | Jenny List | [
"green hacks"
] | [
"battery",
"inverter",
"large scale",
"power bank"
] | Perhaps one day in the future when our portable electronics are powered by inexhaustible dilithium crystals, we’ll look back fondly on the 2020s when we carried around power banks to revive our flagging tech. Oh how we laughed as we reached for those handy plastic bricks only to find them drained already of juice, we’l... | 25 | 5 | [
{
"comment_id": "6420592",
"author": "MrSVCD",
"timestamp": "2022-02-03T17:01:34",
"content": "How many watts? There is quite a difference between 48v 27kAh and 400v 27kAh.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6420595",
"author": "DKE",
... | 1,760,372,801.409345 | ||
https://hackaday.com/2022/02/03/shining-a-different-light-on-reality-with-short-wave-infrared-radiation/ | Shining A Different Light On Reality With Short-Wave Infrared Radiation | Maya Posch | [
"Engineering",
"Featured",
"hardware",
"Science",
"Slider"
] | [
"short-wave infrared",
"SWIR"
] | As great as cameras that operate in the visual light spectrum are, they omit a lot of the information that can be gleaned from other wavelengths. There is also the minor issue that visibility is often impacted, such as when it’s raining, or foggy. When this happens, applications such as self-driving cars which rely on ... | 23 | 9 | [
{
"comment_id": "6420582",
"author": "CRJEEA",
"timestamp": "2022-02-03T15:31:18",
"content": "This reminds me of the first time I took the filters of of a webcam and realized that coca-cola was transparent in certain wavelengths.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,801.344797 | ||
https://hackaday.com/2022/02/03/arduino-activated-automotive-aerodynamic-apparatus-is-spoiler-alert/ | Arduino Activated Automotive Aerodynamic Apparatus Is… (Spoiler Alert!) | Ryan Flowers | [
"Arduino Hacks",
"car hacks"
] | [
"arduino",
"automotive",
"IMU",
"servos",
"Spoiler",
"suction cups"
] | Sometimes a great hack is great for no other reason than that it’s
fun
, and [Michael Rechtin]’s
DIY Active Aero Spoiler and Air Brake
certainly qualifies as a fun hack. This is a mod designed to live in a world where looks are everything, stickers add horsepower, and a good sound system is more important than good whe... | 8 | 6 | [
{
"comment_id": "6420541",
"author": "volt-k",
"timestamp": "2022-02-03T12:50:02",
"content": "Suction cups, seriously? Sorry but it’s super unsafe, imagine driving behind him on a motorway and this thing detaches and hits your windshield at 70mph.(Yes I’m fun at parties)",
"parent_id": null,
... | 1,760,372,801.454789 | ||
https://hackaday.com/2022/02/03/pcb-stepper-motor-micro-robots/ | PCB Stepper Motor Micro Robots | Chris Lott | [
"Robots Hacks"
] | [
"micro robotics",
"PCB stepper",
"stepper motor"
] | [Kevin Lynagh] is interested in tiny PCB stepper motors, and after reviewing the various projects and patents to-date, decided to
give it a try himself
. These are basically a stepper motor that’s been unrolled and made flat — traces on the PCB act as the coils and tiny magnetic “robots” act as the rotor.
If you want t... | 14 | 9 | [
{
"comment_id": "6420510",
"author": "none",
"timestamp": "2022-02-03T09:59:38",
"content": "Excellent work/post by [Kevin Lynagh]!> We covered one such project back in 2014Two, actually. And maybe more – see Kevin Lynagh’s long list of references. Or search this site. Your site.Off-topic: time fli... | 1,760,372,801.509551 | ||
https://hackaday.com/2022/02/02/forget-sudoku-build-yourself-a-minimalist-rubiks-solver-robot/ | Forget Sudoku, Build Yourself A Minimalist Rubik’s Solver Robot | Dave Rowntree | [
"Robots Hacks"
] | [
"3d printing",
"opencv",
"raspberry pi",
"robot",
"rubiks cube solving",
"servo"
] | Some people like crossword puzzles, some are serious sudoku ninjas, but [Andrea Favero] likes to keep himself sharp, by learning coding and solving control problems, and that is something we can definitely relate to. When learning a new platform, it’s a very good idea to have a substantial project or goal in mind, and ... | 12 | 6 | [
{
"comment_id": "6420483",
"author": "rthrth56h",
"timestamp": "2022-02-03T08:23:37",
"content": "solver is no necessaryi need randomlisy cube, i need true random cube for solving myself",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6420515",
"author": "a... | 1,760,372,801.563532 | ||
https://hackaday.com/2022/02/02/3d-printed-circular-prototype-performance-prop-captivates-circus-spectators/ | 3D Printed Circular Prototype Performance Prop Captivates Circus Spectators | Ryan Flowers | [
"Misc Hacks"
] | [
"3d printing",
"circus",
"metal working",
"performance",
"prototyping"
] | When mathematically inspired maker [Henry Segerman] conspired with circus performer and acrobat [Marcus Paoletti] to advance the craft of acrobatics in round metal objects (such as cyr wheels and German Wheels), they came up with a fascinating concept that has taken shape in what [Henry] calls the
Tao-Line
.
Similar pe... | 12 | 8 | [
{
"comment_id": "6420450",
"author": "John",
"timestamp": "2022-02-03T03:57:14",
"content": "It’s about 10 times more impressive at 2X playback speed. Also, that bar that sticks out at chest level has got to be removed. Someone’s going to impale themselves on that for sure.It looks like the shape wa... | 1,760,372,801.610987 | ||
https://hackaday.com/2022/02/02/keep-track-of-your-google-calendar-with-this-custom-build/ | Keep Track Of Your Google Calendar With This Custom Build | Lewin Day | [
"LED Hacks"
] | [
"calendar",
"google calendar",
"ws2812"
] | Keeping track of your appointments on Google Calendar is easy enough if you’re holding a phone or sitting at a computer, but sometimes you just want to know what’s going on at a glance.
This desktop calendar build from [andrei.erdei] does just that with plenty of helpful LEDs.
The attract mode is very cool, even if it ... | 9 | 2 | [
{
"comment_id": "6420409",
"author": "Gravis",
"timestamp": "2022-02-03T01:29:10",
"content": "Meh. Never rely on a google product, even if you pay for it. Google pulls products when they don’t contribute sufficiently to raising funds, so relying on them is a foolhardy move. Cloud “apps” are unre... | 1,760,372,801.685592 | ||
https://hackaday.com/2022/02/01/linux-arcade-cab-gives-up-its-secrets-too-easily/ | Linux Arcade Cab Gives Up Its Secrets Too Easily | Dave Rowntree | [
"Linux Hacks",
"Software Hacks"
] | [
"Das U-Boot",
"depthcharge",
"Embedded Linux",
"flash storage",
"retro arcade",
"reverse engineering",
"spi"
] | Sometimes reverse engineering embedded systems can be a right old faff, with you needing to resort to all kinds of tricks such as power glitching in order to poke a tiny hole in the armour, giving you an way in. And, sometimes the door is just plain wide open. This
detailed exploration of an off-the-shelf retro arcade ... | 9 | 6 | [
{
"comment_id": "6420120",
"author": "Hyratel",
"timestamp": "2022-02-02T06:42:00",
"content": "considering the maker of these cabs is probably made up of The Kind Of People That Read HackADay, the openness and lack of pitfall security features may be fully intentional! Reinforced by the presence of... | 1,760,372,801.772384 | ||
https://hackaday.com/2022/02/01/will-a-kettle-filled-with-alcohol-boil-dry/ | Will A Kettle Filled With Alcohol Boil Dry? | Lewin Day | [
"Misc Hacks"
] | [
"alcohol",
"boiling",
"ethanol",
"kettle"
] | The average home kettle is set up to switch off automatically when water reaches its boiling point. But would a kettle filled with alcohol, which has a significantly lower boiling point, actually turn off?
[Steve Mould] set out to find out.
The prediction was that a kettle full of 40% strength vodka would boil dry, as ... | 31 | 12 | [
{
"comment_id": "6420095",
"author": "tekkieneet",
"timestamp": "2022-02-02T03:19:52",
"content": "They probably have to do it this way as the strip won’t need calibration – added labor cost. Its temperature accuracy probably isn’t that great without calibration.",
"parent_id": null,
"depth... | 1,760,372,803.550195 | ||
https://hackaday.com/2022/02/01/rainbow-dip-switch-is-the-coolest-way-to-configure-your-project/ | Rainbow DIP Switch Is The Coolest Way To Configure Your Project | Lewin Day | [
"Misc Hacks"
] | [
"dip switch",
"rainbow",
"usb"
] | Oftentimes, when programming, we’ll put configuration switches into a config file in order to control the behaviour of our code. However, having to regularly open a text editor to make changes can be a pain.
This colorful little DIP switch dongle
from [Glen Aikins] makes for a fun alternative solution.
Do want.
The bui... | 28 | 17 | [
{
"comment_id": "6420063",
"author": "Michael Black",
"timestamp": "2022-02-02T00:09:46",
"content": "So yiu can have rainbow rom with some of these DIP switches, and the project from lastweek?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6420065",
"auth... | 1,760,372,803.710352 | ||
https://hackaday.com/2022/02/01/custom-macintosh-with-a-real-486/ | Custom Macintosh With A Real 486 | Bryan Cockfield | [
"Mac Hacks"
] | [
"486",
"apple",
"Computing",
"dos",
"freedos",
"gaming",
"mac",
"macintosh",
"retro",
"vmac"
] | Older Apple computers can often be something of a collector’s item, with the oldest fetching an enormously high price in auctions. The ones from the late ’80s and early ’90s don’t sell for quite as much yet, but it’s possible that museums and collectors of the future will one day be clamoring for those as well. For tha... | 12 | 6 | [
{
"comment_id": "6420044",
"author": "Eric Chapin",
"timestamp": "2022-02-01T22:23:44",
"content": "I have a Macintosh Quadra 650 that’s all original with a 486 add on card. The 486DX2 with sound blaster option was originally from a Power Mac 6100, I fashioned an extension PCB so I could properly pl... | 1,760,372,803.643552 | ||
https://hackaday.com/2022/02/01/renaissance-style-drone-would-make-da-vinci-proud-four-times-over/ | Renaissance-Style Drone Would Make Da Vinci Proud Four Times Over | Dan Maloney | [
"drone hacks"
] | [
"archimedes",
"da vinci",
"propellor",
"quad",
"quadcopter",
"screw",
"uav"
] | For as much of a genius as Leonardo da Vinci obviously was, modern eyes looking upon his notebooks from the 1400s tend to see his designs as somewhat quaint. After all, his concept of a vehicle armored with wood would probably only have survived the archers and pikemen of a Renaissance battlefield, and his curious heli... | 7 | 5 | [
{
"comment_id": "6420061",
"author": "Trey",
"timestamp": "2022-02-01T23:45:04",
"content": "It probably would have been easier to 3D print these props.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6420084",
"author": "Foldi-One",
"timestam... | 1,760,372,803.334129 | ||
https://hackaday.com/2022/02/01/did-you-know-that-the-raspberry-pi-4-has-more-spi-i2c-uart-ports/ | Did You Know That The Raspberry Pi 4 Has More SPI, I2C, UART Ports? | Arya Voronova | [
"Hackaday Columns",
"Raspberry Pi",
"Slider"
] | [
"compute module",
"compute module 4",
"i2c",
"raspberry pi",
"Raspberry Pi 4",
"Raspberry Pi Compute Module",
"spi",
"uart"
] | We’ve gotten used to the GPIO-available functions of Raspberry Pi computers remaining largely the same over the years, which is why it might have flown a little bit under the radar: the Raspberry Pi 4 has
six SPI controllers
,
six I2C controllers, and six UARTs
– all on its 40-pin header. You can’t make use of all of t... | 35 | 10 | [
{
"comment_id": "6419992",
"author": "Twisty Plastic",
"timestamp": "2022-02-01T18:20:01",
"content": "Meh. Needs a true LPT port still.Just think of the possibilities for controlling old CNC machines.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6419994",... | 1,760,372,803.405087 | ||
https://hackaday.com/2022/02/01/analog-computer-made-from-lego-predicts-tides/ | Analog Computer Made From LEGO Predicts Tides | Robin Kearey | [
"computer hacks"
] | [
"analog computer",
"lego",
"tide-predicting machine"
] | Although the tides in the ocean are caused by the motion of the Sun and the Moon, both of which are easy to observe, accurately predicting the tide more than a few days in advance turns out to be rather difficult. The math behind the tidal movement is so complex that some of the earliest analog computers were built spe... | 4 | 4 | [
{
"comment_id": "6420006",
"author": "Rog77",
"timestamp": "2022-02-01T19:23:37",
"content": "I liked the use of SA in the optimisation, second time I’ve seen it used on projects posted here in the last couple of weeks, “non-trivial” seems like an understatement.",
"parent_id": null,
"depth"... | 1,760,372,803.588879 | ||
https://hackaday.com/2022/02/01/how-the-hunga-tonga-volcano-eruption-was-felt-around-the-world/ | How The Hunga Tonga Volcano Eruption Was Felt Around The World | Lewin Day | [
"Current Events",
"Featured",
"Science",
"Slider"
] | [
"citizen science",
"environment",
"hunga tonga",
"pressure wave",
"satellite imagery",
"volcano",
"weather station"
] | On the 14th of January, 2022, the Hunga Tonga-Hunga Ha’apai volcano began a gigantic eruption that would go on to peak in ferocity the next day. The uninhabited island volcano would quickly make headlines as the country of Tonga was cut off the world and tsunamis bore out from the eurption zone.
In a volcanic event of ... | 14 | 8 | [
{
"comment_id": "6419917",
"author": "Heinz-Bernd Eggenstein",
"timestamp": "2022-02-01T15:37:19",
"content": "The event was also observed with relatively inexpensive citizen-sciene infrasound sensors like the “Raspberry BOOM” (by the same company that makes the “Raspberry Shake” citizen science sei... | 1,760,372,803.982458 | ||
https://hackaday.com/2022/02/01/radio-amateurs-skywatchers-rejoice-sat-operators-worry-solar-storm-incoming/ | Radio Amateurs & Skywatchers Rejoice, Sat Operators Worry: Solar Storm Incoming | Jenny List | [
"News",
"Science",
"Space"
] | [
"aurora",
"solar storm",
"space weather"
] | How do you look back over your life and divide it up? Maybe by decades, cultural moments, or geopolitical events. For radio amateurs with older callsigns there’s a temptation to do so by solar cycles, as the roughly 11-year period of the Sun’s activity had a huge effect on radio propagation through the charge it create... | 23 | 6 | [
{
"comment_id": "6419887",
"author": "metalman",
"timestamp": "2022-02-01T13:57:09",
"content": "ice core data is revealing strong evidence of past solar stormsthat are orders of magnitude larger than anything observedin modern times,ie 1600’s to present.we still have no idea ofhow large a solar sto... | 1,760,372,803.923646 | ||
https://hackaday.com/2022/02/01/simple-setup-answers-complex-question-on-the-physics-of-solids/ | Simple Setup Answers Complex Question On The Physics Of Solids | Dan Maloney | [
"Science"
] | [
"material science",
"physics",
"piezo",
"propagation",
"sound",
"speed of sound"
] | Thought experiments can be extremely powerful; after all, pretty much everything that [Einstein] came up with was based on thought experiments. But when a thought experiment turns into a real experiment, that’s when things can get really interesting, and where unexpected insights crop up.
Take [AlphaPhoenix]’s simple q... | 17 | 12 | [
{
"comment_id": "6419812",
"author": "Andy Pugh",
"timestamp": "2022-02-01T09:31:26",
"content": "This physics is the basis of a high strain-rate testing device called the “Hopkinson bar”https://en.wikipedia.org/wiki/Split-Hopkinson_pressure_bar(Which might well be mentioned in the video, I haven’t ... | 1,760,372,803.767646 | ||
https://hackaday.com/2022/01/31/open-hardware-5v-ups-improves-on-cheap-powerbank-design/ | Open Hardware 5V UPS Improves On Cheap Powerbank Design | Arya Voronova | [
"Tool Hacks"
] | [
"open hardware",
"open source hardware",
"tp5400",
"Uninterruptible Power Supply",
"ups"
] | Often, we need to power a 5V-craving project of ours on the go. So did [Burgduino], and, unhappy with solutions available,
designed their own 5V UPS!
It takes a cheap powerbank design and augments it with a few parts vital for its UPS purposes.
You might be tempted to reach for a powerbank when facing such a problem, b... | 35 | 12 | [
{
"comment_id": "6419775",
"author": "Dave",
"timestamp": "2022-02-01T06:10:57",
"content": "Pardon the ignorance but why would I scoff at a TI part. Chip shortage?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6419826",
"author": "Arya Voronova",
... | 1,760,372,803.472008 | ||
https://hackaday.com/2022/01/31/time-and-accuracy-in-las-atmegas/ | Time And Accuracy In Las ATMegas | Arya Voronova | [
"how-to",
"Microcontrollers",
"Skills",
"Software Development"
] | [
"accuracy",
"atmega",
"atmega328p",
"clock calibration",
"interrupts",
"precision",
"timers"
] | Do you ever have to ensure that an exact amount of time passes between two tasks in your microcontroller code? Do you know what’s the difference between precision and accuracy? Today, [Jim Mack]
tells us about pushing timers and interrupts to their limits
when it comes to managing time, while keeping it applicable to a... | 4 | 4 | [
{
"comment_id": "6419762",
"author": "eriklscott",
"timestamp": "2022-02-01T04:46:22",
"content": "Nice work on the title. :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6419799",
"author": "Anonymouso",
"timestamp": "2022-02-01T08:11:27",
"con... | 1,760,372,804.020525 | ||
https://hackaday.com/2022/01/31/reverse-engineering-a-two-wire-led-strip-protocol/ | Reverse-Engineering A Two-Wire LED Strip Protocol | Robin Kearey | [
"LED Hacks"
] | [
"LED string",
"power line signal",
"two-wire communication"
] | Although Christmas may be several weeks behind us, various colorful LED contraptions can nowadays be found in our houses at any time of year. [Tim] got his hands on an LED curtain that came with a remote control that allows the user to set not only the color of the LEDs as a whole but also to run simple animations. But... | 19 | 6 | [
{
"comment_id": "6419697",
"author": "I",
"timestamp": "2022-02-01T00:12:29",
"content": "Not surprising to see this kind of thing in the wild, it’s been around a long time! A few years back I used a powerline-based ethernet plug that had 2 units which you’d connect to 2 outlets in a house to make a... | 1,760,372,804.081052 | ||
https://hackaday.com/2022/01/31/reusing-proprietary-wireless-sockets-without-wireless-hacking/ | Reusing Proprietary Wireless Sockets Without Wireless Hacking | Arya Voronova | [
"home hacks",
"Wireless Hacks"
] | [
"analog switch",
"hackaday.io",
"home automation",
"reverse engineering",
"rf remote control",
"smart home",
"wireless outlet"
] | Bending various proprietary devices to our will is a hacker’s rite of passage. When it comes to proprietary wall sockets, we’d often reverse-engineer and emulate their protocol – but you can absolutely take a shortcut and, like [oaox],
spoof the button presses on the original remote
! Buttons on such remotes tend to be... | 9 | 5 | [
{
"comment_id": "6419651",
"author": "kevinski",
"timestamp": "2022-01-31T21:18:08",
"content": "Most of these 315/433Mhz work with a rflink gateway (https://www.rflink.nl/devlist.php)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6419657",
"author": "Alp... | 1,760,372,804.239619 | ||
https://hackaday.com/2022/01/30/gpu-ram-upgrades-are-closer-than-you-think/ | GPU RAM Upgrades Are Closer Than You Think | Arya Voronova | [
"Repair Hacks"
] | [
"BGA soldering",
"gpu",
"memory upgrade",
"ram",
"vram"
] | We’re all used to swapping RAM in our desktops and laptops. What about a GPU, though? [dosdude1] teaches us that soldered-on RAM is
merely a frontier to be conquered
. Of course, there’s gotta be a good reason to undertake such an effort – in his case, he couldn’t find the specific type of Nvidia GT640 that could be fl... | 34 | 13 | [
{
"comment_id": "6419210",
"author": "Nicci",
"timestamp": "2022-01-31T06:14:31",
"content": "I wish the same could be done on laptops with soldered RAM, like the Macbooks. I like my M1 Air but the 8GB Ram isn’t going to be enough in just a few years.",
"parent_id": null,
"depth": 1,
"re... | 1,760,372,804.150051 | ||
https://hackaday.com/2022/01/30/retro-gaming-with-retro-joysticks/ | Retro Gaming With Retro Joysticks | Bryan Cockfield | [
"Games"
] | [
"adapter",
"controller",
"dos",
"gameport",
"gaming",
"Joystick",
"pc",
"sound card",
"usb",
"wheel"
] | One of the biggest reasons for playing older video games on original hardware is that emulators and modern controllers can’t replicate the exact feel of how those games would have been originally experienced. This is true of old PC games as well, so if you want to use your original Sidewinder steering wheel or antique ... | 12 | 5 | [
{
"comment_id": "6419255",
"author": "Gregg Eshelman",
"timestamp": "2022-01-31T07:50:30",
"content": "Variations of PC gameport to USB adapters have been around for a while, including ones that support oddball sticks like the Sidewinder 3D. But none of them support any force feedback because nobody... | 1,760,372,804.197884 | ||
https://hackaday.com/2022/01/30/hackaday-links-january-30-2022/ | Hackaday Links: January 30, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"adsb",
"crypto",
"death star",
"Elon Musk",
"fault injection",
"flight tracking",
"hackaday links",
"james webb space telescope",
"jwst",
"L2",
"Lagrange",
"libration",
"Mimas",
"roomba",
"Saturn",
"trezor",
"wallet"
] | After all the fuss and bother along the way, it seems a bit anticlimactic now that
the James Webb Space Telescope has arrived at its forever home
orbiting around L2. The observatory finished its trip on schedule, arriving on January 24 in its fully deployed state, after a one-month journey and a couple of hundred singl... | 12 | 8 | [
{
"comment_id": "6419091",
"author": "Truth",
"timestamp": "2022-01-31T00:23:30",
"content": "I was watching the Webb video and thinking the whole time what it is showing is technically wrong it is orbiting around L2, the video shows a dumbed down version where it’s solar panels are in constant shad... | 1,760,372,804.497439 | ||
https://hackaday.com/2022/01/30/laundry-bot-tackles-the-tedium-of-t-shirt-folding/ | Laundry Bot Tackles The Tedium Of T-Shirt Folding | Dan Maloney | [
"Robots Hacks"
] | [
"domestic",
"folding",
"laundry",
"robot",
"shirt",
"t-shirt"
] | Roomba aside, domestic robots are still in search of the killer app they need to really take off. For the other kind of home automation to succeed, designers are going to have to find the most odious domestic task and make it go away at the push of the button.
A T-shirt folding robot
is probably a good first step.
Firs... | 13 | 5 | [
{
"comment_id": "6419061",
"author": "Bryce Schroeder",
"timestamp": "2022-01-30T21:39:55",
"content": "Or you could just put the shirt in a bin of clean t-shirts, and after wearing it for ten minutes it will be indistinguishable from one that was carefully folder, assuming you used fabric softener ... | 1,760,372,804.683783 | ||
https://hackaday.com/2022/01/30/esp32-and-raspberry-pi-take-over-game-boy-lcd/ | ESP32 And Raspberry Pi Take Over Game Boy LCD | Tom Nardi | [
"Games",
"Microcontrollers",
"Nintendo Game Boy Hacks",
"Raspberry Pi"
] | [
"handheld",
"i2c",
"lcd driver",
"video capture"
] | The Nintendo Game Boy and its many permutations represent one of the most well-known and successful gaming platforms ever produced. There was a decades-long stretch of time where the most popular kid in the lunch room was the one who brought in their Game Boy so the rest of the class could huddle around and check out t... | 0 | 0 | [] | 1,760,372,804.723472 | ||
https://hackaday.com/2022/01/30/power-for-nothing-and-your-kicks-for-free/ | Power For Nothing And Your Kicks For Free | Al Williams | [
"green hacks"
] | [
"energy harvesting",
"thermocouple"
] | We all know that you can convert heat into electricity. Usually, you do that with some form of steam, but there are other methods, too, including thermocouples. If you’ve ever seen something producing waste heat, you’ll appreciate Penn State’s work
to harvest power from hot pipes
. The idea is simple in theory: create ... | 68 | 16 | [
{
"comment_id": "6418814",
"author": "mime",
"timestamp": "2022-01-30T15:06:12",
"content": "would anyone know if thermocouples as used in this article would be available from uncle jeff or ebay?Typically thermocouples are tiny things, used to measure temperature.Just to do a back-of-napkin break-ev... | 1,760,372,804.598153 | ||
https://hackaday.com/2022/01/30/relay-driven-nixie-clock-gets-you-to-stop-scrolling/ | Relay-Driven Nixie Clock Gets You To Stop Scrolling | Arya Voronova | [
"clock hacks"
] | [
"nixie",
"nixie clock",
"nixie tube",
"nixie tube clock",
"nixie tubes",
"relay"
] | We don’t often get a Tips line submission where the “Subject” line auto-translates as “Yoshi Yoshi Yoshi”, linking to
a short video by [Yasunari Industries]
(embedded below). For many, it might be hard to tell what this is at a first glance – however, if the myriad of relays clacking won’t draw your attention, the four... | 1 | 1 | [
{
"comment_id": "6418813",
"author": "Charles Guerin",
"timestamp": "2022-01-30T14:58:03",
"content": "Kind of a satisfying “natural” haptic there with relays",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,804.637473 | ||
https://hackaday.com/2022/01/31/another-neat-general-purpose-soldering-iron-driver/ | Another Neat General Purpose Soldering Iron Driver | Dave Rowntree | [
"Tool Hacks"
] | [
"hal",
"soldering",
"stm32",
"stm32g0"
] | Over on Hackaday.io, user [Tomasz Jastrzebski] has designed a tidy-looking
custom controller for driving temperature-controlled soldering irons
. The design is intended to be general purpose, capable of operating with irons rated for different voltages and probe type, be they thermocouple- or thermistor-based. Rather t... | 26 | 7 | [
{
"comment_id": "6419631",
"author": "8bitwiz",
"timestamp": "2022-01-31T19:45:23",
"content": "Automatic power-down? My solution is an outdoor Christmas lights timer, which costs ~$11 at Home Depot. Just add a small piece of opaque tape over the photocell, and set it to 2-hour mode. I’ve forgotten ... | 1,760,372,804.786982 | ||
https://hackaday.com/2022/01/31/3d-printering-water-cooled-hotends/ | 3D Printering: Water-Cooled Hotends | Al Williams | [
"3d Printer hacks",
"Hackaday Columns",
"Slider"
] | [
"3d printer",
"3d printing",
"liquid cooling",
"water cooling"
] | There’s an old joke about the Thermos bottle that keeps things hot and cold, so someone loaded it with soup and ice cream. That joke is a little close to home when it comes to FDM 3D printers.
You want to melt plastic, of course, or things won’t print, so you need heat. But if the plastic filament gets hot too early, i... | 33 | 13 | [
{
"comment_id": "6419617",
"author": "Bleugh",
"timestamp": "2022-01-31T18:54:32",
"content": "Bigtreetech have also made the H2 water cooled extruder thing! – What a time to be alive",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6419622",
"author": "Chri... | 1,760,372,805.166935 | ||
https://hackaday.com/2022/01/31/floppy-interfacing-hack-chat-with-adafruit/ | Floppy Interfacing Hack Chat With Adafruit | Dan Maloney | [
"Hackaday Columns"
] | [
"CircuitPython",
"disk",
"floppy",
"flux",
"Hack Chat",
"MFM",
"microcontroller",
"modified frequency modulation",
"sector",
"track"
] | Join us on Wednesday, February 2 at noon Pacific for the
Floppy Interfacing Hack Chat
with Adafruit’s
Limor “Ladyada” Fried
and
Phillip Torrone
!
When a tiny fleck of plastic-covered silicon can provide enough capacity to store a fair percentage of humanity’s collected knowledge, it may seem like a waste of time to be ... | 44 | 13 | [
{
"comment_id": "6419585",
"author": "Michael Black",
"timestamp": "2022-01-31T17:10:28",
"content": "I always had floppy drives from my first in 1984 to 2016. I even have a couple of USB flopoy drives around, just in case, though I’ve never used them.Other than nostalgia, or reading old floppies, ... | 1,760,372,805.091011 | ||
https://hackaday.com/2022/01/31/diy-acoustic-panels-or-modern-artwork-cant-tell/ | DIY Acoustic Panels Or Modern Artwork? Can’t Tell | Arya Voronova | [
"Art",
"home entertainment hacks",
"home hacks"
] | [
"acoustic panels",
"reverb",
"sound",
"sound deadening",
"soundproofing",
"studio"
] | The acoustic properties of a room have a surprising impact when you want to use a microphone. [RayP24]’s son was trying to make his bedroom into a better recording studio, and for [Ray],
that turned into an artfully-executed wall panel project
. Fortunately, the process is documented so we all can learn from it. When i... | 25 | 7 | [
{
"comment_id": "6419508",
"author": "steelman",
"timestamp": "2022-01-31T16:04:28",
"content": "3/4″ (5mm) plywood sheet3/4″ is ~18 mm, 5mm is ~1/4″.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6419532",
"author": "fiddlingjunky",
"timest... | 1,760,372,804.926873 | ||
https://hackaday.com/2022/01/31/save-money-and-have-fun-using-ieee-488/ | Save Money And Have Fun Using IEEE-488 | Chris Lott | [
"Featured",
"Interest",
"Misc Hacks",
"Slider"
] | [
"gpib",
"history",
"HP-IB",
"ieee-488",
"low-cost lab equipment",
"test equipment"
] | A few months ago, I was discussing the control of GPIB equipment with a colleague. Based on only on my gut feeling and the briefest of research, I told him that the pricey and proprietary GPIB controller solutions could easily be replaced by open-source tools and Linux. In the many weeks that followed, I almost abandon... | 32 | 14 | [
{
"comment_id": "6419442",
"author": "Slacker24l7",
"timestamp": "2022-01-31T15:09:58",
"content": "I did this at one of my jobs.Replacing gpib interfaces with usb. Its not that big of a deal as long as its well documented",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,372,804.868738 | ||
https://hackaday.com/2022/01/31/this-parametric-project-box-generator-is-super-easy/ | This Parametric Project Box Generator Is Super Easy | Dave Rowntree | [
"3d Printer hacks"
] | [
"3D printed enclosure",
"openscad",
"pcb"
] | When it comes to taking an idea from concept to prototype reality, depending on the type of project, there can be quite a few sub-tasks along the way. Take for example, your latest electronic widget design. You’ve finished the schematic, and the PCB layout is a work of art (if you do say so yourself) but having that ki... | 8 | 4 | [
{
"comment_id": "6419377",
"author": "Mr Name Required",
"timestamp": "2022-01-31T12:46:35",
"content": "I tried it and it seems a very nice box generator.A few things though, one is that the author’s familiarity with his own project =/= anyone else’s familiarity. There is no discussion on the Githu... | 1,760,372,805.220696 | ||
https://hackaday.com/2022/01/31/factory-defect-ic-revived-with-sandpaper-and-microsoldering/ | Factory Defect IC Revived With Sandpaper And Microsoldering | Arya Voronova | [
"Repair Hacks"
] | [
"bodge",
"die",
"ic",
"integrated circuit",
"leadframe"
] | We might be amidst a chip shortage, but if you enjoy reverse-engineering, there’s never a shortage of intriguing old chips to dig into – and the 2513N 5×7 character ROM is one such chip.
Amidst a long thread probing a few of these
(Twitter,
ThreadReader link
), [TubeTime] has realized that two address lines were shorte... | 14 | 6 | [
{
"comment_id": "6419283",
"author": "Andrew",
"timestamp": "2022-01-31T09:13:42",
"content": "There! I fixed it!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6421910",
"author": "Fred",
"timestamp": "2022-02-06T21:16:22",
"content"... | 1,760,372,805.273212 | ||
https://hackaday.com/2022/01/30/crows-trade-cigarettes-for-food/ | Crows Trade Cigarettes For Food | Chris Lott | [
"Misc Hacks"
] | [
"animal training",
"birds",
"crow",
"litter"
] | Over in the Swedish city of Södertälje, about 30 km southwest of Stockholm, a pilot program is being explored which will
enlist crows to clean up discarded cigarette butts
. Butts account for over 60% of litter in Sweden, and the per-butt cleanup cost falls between 0.8 and 2 Swedish kronor each. The company behind the ... | 47 | 14 | [
{
"comment_id": "6418755",
"author": "Dan",
"timestamp": "2022-01-30T09:14:47",
"content": "Stopping smoking (or even switching to vaping) would also reduce cigarette butt litter… just saying…But seriously, good project, hope it takes off and that the crows aren’t affected by the nicotine or tar in ... | 1,760,372,805.35847 | ||
https://hackaday.com/2022/01/29/meowing-box-will-befuddle-your-friends/ | Meowing Box Will Befuddle Your Friends | Lewin Day | [
"Arduino Hacks",
"Misc Hacks"
] | [
"arduino",
"arduino mini",
"cat",
"feline",
"prank"
] | If you don’t own a cat, hearing the sound of one meowing from somewhere in the house probably comes as quite a shock.
The Cat Prank box built by [Reuben] promises to deliver such hilarity with aplomb.
The idea is simple: hide the Cat Prank box in a cupboard or other space in a friend’s house, and it will meow from its ... | 11 | 8 | [
{
"comment_id": "6418738",
"author": "Redhatter (VK4MSL)",
"timestamp": "2022-01-30T06:15:21",
"content": "Where’s the fun in that?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6418999",
"author": "Tom Hargrave",
"timestamp": "2022-01-30T18... | 1,760,372,805.525996 | ||
https://hackaday.com/2022/01/29/commodore-promotional-film-from-1984-enhanced/ | Commodore Promotional Film From 1984 Enhanced | Chris Lott | [
"Retrocomputing",
"Video Hacks"
] | [
"commodore",
"documentary",
"factory tour",
"restoration"
] | Over on Retro Recipe’s YouTube channel, [Perifractic] has been busy restoring an old promotional video of how Commodore computers were made back in 1984 (
video below the break
). He cleaned up the
old VHS-quality version that’s been around for years
, translated the German to English, and trimmed some bits here and th... | 10 | 7 | [
{
"comment_id": "6418721",
"author": "Ostracus",
"timestamp": "2022-01-30T03:04:26",
"content": "I saw that earlier. Amusing the tone and attitude about computers back then.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6418732",
"author": "Eric Chapin",
... | 1,760,372,805.402772 | ||
https://hackaday.com/2022/01/29/planar-pcb-coils-as-an-alternative-to-winding-transformers/ | Planar PCB Coils As An Alternative To Winding Transformers | Jenny List | [
"Parts"
] | [
"pcb",
"PCB inductor",
"PCB transformer"
] | Those readers who have experimented with winding their own inductors will know that it’s not an easy task, and when those inductors are handling high voltages it can be especially tricky to maintain adequate insulation between layers of windings. [Open Frime TV] has a video addressing this in a novel way, by creating t... | 35 | 15 | [
{
"comment_id": "6418696",
"author": "Saabman",
"timestamp": "2022-01-30T00:59:11",
"content": "There is an company in israel (just can’t think of their name of the top of my head) that produces planar transformers to order. The windings are stamped/laser cut out of sheet metal. They make some gre... | 1,760,372,805.477614 | ||
https://hackaday.com/2022/01/29/apollo-guidance-computer-gets-the-rust-treatment/ | Apollo Guidance Computer Gets The Rust Treatment | Tom Nardi | [
"Software Development",
"Space"
] | [
"agc",
"Apollo Guidance Computer",
"emulator",
"rust"
] | Seems like all the cool kids are rewriting legacy C programs in Rust these days, so we suppose it was only a matter of time before somebody decided to combine the memory-safe language with some of the most historically significant software ever written by way of
a new Apollo Guidance Computer (AGC) emulator
. Written b... | 8 | 3 | [
{
"comment_id": "6418673",
"author": "limpkin",
"timestamp": "2022-01-29T21:12:34",
"content": "I’d be very curious to hear from people doing active development in bare metal rust.I recently spent a week learning rust to potentially use it for quite a complex project.Unfortunately, even though the c... | 1,760,372,805.569715 | ||
https://hackaday.com/2022/01/29/blast-chips-with-this-bbq-lighter-fault-injection-tool/ | Blast Chips With This BBQ Lighter Fault Injection Tool | Dan Maloney | [
"Security Hacks",
"Tool Hacks"
] | [
"EMFI",
"fault injection",
"ferrite",
"glitching",
"ignitor",
"piezoelectric",
"reverse engineering",
"toroid"
] | Looking to get into fault injection for your reverse engineering projects, but don’t have the cash to lay out for the necessary hardware? Fear not, for the
tools to glitch a chip may be as close as the nearest barbecue grill
.
If you don’t know what chip glitching is, perhaps a primer is in order. Glitching, more forma... | 16 | 9 | [
{
"comment_id": "6418659",
"author": "That kid",
"timestamp": "2022-01-29T18:12:28",
"content": "Use a solenoid to fire the igniter and a 555, you should be able to have timing control",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6419405",
"author"... | 1,760,372,805.623073 | ||
https://hackaday.com/2022/01/29/code-wrong-expand-your-mind/ | Code Wrong: Expand Your Mind | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Slider",
"Software Development"
] | [
"BrainF*ck",
"esoteric language",
"programming",
"software"
] | The really nice thing about doing something the “wrong” way is that there’s just so much variety! If you’re doing something the right way, the fastest way, or the optimal way, well, there’s just one way. But if you’re going to do it wrong, you’ve got a lot more design room.
Case in point:
esoteric programming languages... | 24 | 5 | [
{
"comment_id": "6418631",
"author": "Severe Tire Damage",
"timestamp": "2022-01-29T15:37:48",
"content": "My short response to this is —- HaskellFor years I have worked with standard imperative languages like C, ruby, perl, python and they are really all the same, taking or leaving the object orien... | 1,760,372,805.722882 | ||
https://hackaday.com/2022/01/29/3d-printer-showdown-350-consumer-vs-73000-pro-machine/ | 3D Printer Showdown: $350 Consumer Vs $73,000 Pro Machine | Al Williams | [
"Reviews"
] | [
"3D resin printer",
"comparison",
"laser",
"masked SLA",
"MSLA",
"resin"
] | The quality of consumer-grade 3D printing has gone way up in recent years. Resin printers, in particular, can produce amazing results and they get less expensive every day. [Squidmar] took a miniature design and printed it (or had it printed) on some cheap resin printers and a 65,000 Euro DWS029. How much difference co... | 35 | 10 | [
{
"comment_id": "6418618",
"author": "Rumble_in_the_Jungle",
"timestamp": "2022-01-29T13:07:10",
"content": "Photos without scale bar or other reference are useless. This can be 2m high statue or 50um nipples, how to tell?",
"parent_id": null,
"depth": 1,
"replies": [
{
"co... | 1,760,372,805.808873 | ||
https://hackaday.com/2022/01/29/radio-control-joby-aircraft-uses-six-tiltrotors-to-fly/ | Radio Control Joby Aircraft Uses Six Tiltrotors To Fly | Lewin Day | [
"drone hacks"
] | [
"electric plane",
"eVTOL",
"radio control",
"rc",
"vtol"
] | eVTOL (Electric Vertical Take-off and Landing) craft are some of the more exciting air vehicles being developed lately. They aim to combine the maneuverability and landing benefits of helicopters with the environmental benefits of electric drive, and are often touted as the only way air taxis could ever be practical. T... | 3 | 3 | [
{
"comment_id": "6418644",
"author": "Greg A",
"timestamp": "2022-01-29T16:30:37",
"content": "wow, putting rotors on the tail surface of a forward-motion airplane. far out! who needs ‘control surfaces’?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6419206... | 1,760,372,805.938876 | ||
https://hackaday.com/2022/01/28/the-air-multiplier-fan-principle-applied-to-a-jet-engine/ | The Air Multiplier Fan Principle, Applied To A Jet Engine | Jenny List | [
"Engine Hacks"
] | [
"air multiplier",
"fan",
"jet engine"
] | Many readers will be familiar with the Dyson Air Multiplier, an ingenious bladeless fan design in which a compressor pushes jets of air from the inside edge of a large ring. This fast-moving air draws the surrounding air through the ring, giving the effect of a large conventional fan without any visible moving parts an... | 26 | 11 | [
{
"comment_id": "6418582",
"author": "Matthew Hajicek",
"timestamp": "2022-01-29T06:12:34",
"content": "Seems a good use for sinterable metal filament.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6418585",
"author": "Mike Massen, Perth, Western Australi... | 1,760,372,805.885804 | ||
https://hackaday.com/2022/01/28/acoustic-switching-transistors-a-new-kind-of-electronics/ | Acoustic Switching Transistors: A New Kind Of Electronics? | Al Williams | [
"News"
] | [
"topological",
"topological transistor",
"ultrasonic"
] | Have you ever heard of topological insulators? These are exotic materials where electricity flows only on the surface with very little loss. Now, according to IEEE Spectrum, scientists at Harvard have used the same concept to create
a transistor for sound waves
and it may be a new branch of electronics. The actual pape... | 7 | 5 | [
{
"comment_id": "6418577",
"author": "Cmh62",
"timestamp": "2022-01-29T04:36:42",
"content": "Seems like they’ve pretty much all been covered … at least evidently. ;-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6418623",
"author": "Ostracus",
... | 1,760,372,806.10282 | ||
https://hackaday.com/2022/01/28/long-range-burglar-alarm-relies-on-lora-modules/ | Long Range Burglar Alarm Relies On LoRa Modules | Lewin Day | [
"Security Hacks"
] | [
"alarm",
"burglar alarm",
"ESP32",
"LoRa",
"security"
] | [Elite Worm] had a problem; there had been two minor burglaries from a storage unit. The unit had thick concrete walls, cellular signal was poor down there, and permanent wiring wasn’t possible. He thus set about working on a burglar alarm that would
fit his unique requirements
.
An ESP32 is the heart of the operation,... | 16 | 8 | [
{
"comment_id": "6418537",
"author": "BillB",
"timestamp": "2022-01-29T00:24:56",
"content": "Very cool project, LolRa seems a great fit for distant low power sensors.Anyone familiar with hacking proprietary LoRa widgets? I got a Yolink lora gateway and the company has been promising MQTT to allow ... | 1,760,372,806.158184 | ||
https://hackaday.com/2022/01/28/3d-printed-jig-makes-custom-springs-a-snap/ | 3D Printed Jig Makes Custom Springs A Snap | Tom Nardi | [
"Tool Hacks"
] | [
"3d printed tool",
"hand tools",
"spring"
] | We’ve often heard it said that springs come in in all shapes and sizes…except for the one you need. In light of this, the hardware hacker would do well to keep the tools and knowledge required to make a custom spring close at hand when building something that moves. Luckily, all it really take is some stiff metal wire,... | 13 | 6 | [
{
"comment_id": "6418466",
"author": "cliff claven",
"timestamp": "2022-01-28T22:14:23",
"content": "Given how many springs I have turned out on the lathe over the years, and how many I have made up on commercial all-thread, I appreciate this design a lot. I have a spring winder (commercial for smal... | 1,760,372,806.355476 | ||
https://hackaday.com/2022/01/28/custom-piano-tickles-the-ivories/ | Custom Piano Tickles The Ivories | Bryan Cockfield | [
"Microcontrollers",
"Musical Hacks"
] | [
"controller",
"custom",
"keyboard",
"microcontroller",
"music",
"piano",
"stm32",
"synthesizer",
"wood"
] | The core ethos of “hacking” is usually interpreted as modifying something for a use that it wasn’t originally built for. Plenty of builds are modifications or improvements on existing technology, but sometimes that just isn’t enough. Sometimes we have to go all the way down and build something completely from scratch, ... | 6 | 3 | [
{
"comment_id": "6418541",
"author": "Steve L",
"timestamp": "2022-01-29T00:40:30",
"content": "Building your own keyboard = extremely hard core. Impressive, especially without sophisticated woodworking tools. And THEN, there’s the electronics…",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,372,806.228018 | ||
https://hackaday.com/2022/01/28/shelf-actualization/ | Shelf Actualization | Al Williams | [
"Featured",
"Interest",
"Rants",
"Robots Hacks",
"Slider"
] | [
"robot",
"robots"
] | If you are old enough, you may remember that, for a time, almost every year was the year that home video was going to take off. Except it never was, until VHS tape machines appeared. We saw something similar with personal computers. Nowadays, we keep hearing about the home robot, but it never seems to fully materialize... | 54 | 19 | [
{
"comment_id": "6418356",
"author": "deshipu",
"timestamp": "2022-01-28T18:21:22",
"content": "What made VHS take off, and later on, broadband Internet, and some of the VR stuff, is porn. I sincerely hope it will never work for robots, though.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,372,806.464326 | ||
https://hackaday.com/2022/01/28/hackaday-podcast-153-a-555-teardown-to-die-for-tetrabyte-is-not-a-typo-diy-injection-molding-and-using-all-the-parts-of-the-trash-printer/ | Hackaday Podcast 153: A 555 Teardown To Die For, Tetrabyte Is Not A Typo, DIY Injection Molding, And Using All The Parts Of The Trash Printer | Tom Nardi | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Join Hackaday Editor-in-Chief Elliot Williams and Managing Editor Tom Nardi on another whirlwind tour of the week’s top stories, hacks, and projects. We start off with some breaking Linux security news, and then marvel over impeccably designed pieces of hardware ranging from a thrifty Z table for the K40 laser cutter t... | 0 | 0 | [] | 1,760,372,806.281169 | ||
https://hackaday.com/2022/01/28/mystery-wwii-navy-gear-with-magic-eye/ | Mystery WWII Navy Gear With Magic Eye | Chris Lott | [
"Radio Hacks"
] | [
"magic eye tube",
"mystery",
"vacuum tubes",
"wwii",
"wwii surplus"
] | There’s an unknown piece of military electronic gear being investigated over on [Usagi Electric]’s YouTube channel (see video below the break). The few markings and labels on the box aren’t terribly helpful, but along with the construction and parts, seem to identify it as relating to the US Navy from the WWII era. Its... | 34 | 22 | [
{
"comment_id": "6418328",
"author": "tyjtyty",
"timestamp": "2022-01-28T16:56:01",
"content": "hal with assistent like mycroft ;-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6418340",
"author": "Jim",
"timestamp": "2022-01-28T17:36:39",
... | 1,760,372,806.53865 | ||
https://hackaday.com/2022/01/28/this-week-in-security-geopolitical-hacktivism-antivirus-mining-and-linux-malware/ | This Week In Security: Geopolitical Hacktivism, Antivirus Mining, And Linux Malware | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"Cryptominer",
"PwnKit",
"This Week in Security"
] | The CIA
Hacktivists have launched
a sort of ransomware campaign against the Belarusian rail system
, but instead of cryptocurrency, they want the release of political prisoners and removal of Russian soldiers. This could be called an example of cyber-terrorism, though there is a reasonable theory that this is a state-s... | 15 | 7 | [
{
"comment_id": "6418301",
"author": "Viktor",
"timestamp": "2022-01-28T15:08:20",
"content": "Thank god I never update my antivirus, only the database.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6418309",
"author": "tekkieneet",
"timestamp": "2022... | 1,760,372,806.596331 | ||
https://hackaday.com/2022/01/28/hacking-a-proper-dash-into-the-tesla-model-3/ | Hacking A Proper Dash Into The Tesla Model 3 | Lewin Day | [
"car hacks",
"Microcontrollers"
] | [
"canbus",
"car",
"car hacks",
"dash",
"tesla"
] | The Tesla Model 3 and Model Y are popular electric vehicles that dispense with some of the usual provisions you’d expect in a typical car. Namely, there’s no dash cluster in front of the driver; instead, all information is solely displayed on the center console screen. [Nick Nguyen] wasn’t a fan of this setup, and deci... | 60 | 13 | [
{
"comment_id": "6418247",
"author": "Viktor",
"timestamp": "2022-01-28T12:07:58",
"content": "At least it doesn’t freezes like the original does :D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6418472",
"author": "London",
"timestamp": "20... | 1,760,372,806.750624 | ||
https://hackaday.com/2022/01/28/tiny-cnc-cuts-the-metal/ | Tiny CNC Cuts The Metal | Al Williams | [
"cnc hacks"
] | [
"aluminum extrusion",
"cnc",
"CNC router",
"router"
] | We’re no strangers to [Ivan]’s work and this time he’s building a relatively small
CNC machine
using extrusion, 3D printed parts, and a Makita router. The plans are available at a small cost, but just watching the accelerated build is fascinating.
You might think you could just attach something to an existing 3D printe... | 21 | 7 | [
{
"comment_id": "6418225",
"author": "paulvdh",
"timestamp": "2022-01-28T09:20:09",
"content": "“Judging from the video, the machine made short work of some aluminum plate.”Euhm, not really.I’m guessing that machine was making lots of noise for more then an hour to get that part made out of aluminum... | 1,760,372,806.656498 | ||
https://hackaday.com/2022/01/27/kinetic-art-installation-brings-all-the-worlds-lightning-to-one-place/ | Kinetic Art Installation Brings All The World’s Lightning To One Place | Robin Kearey | [
"Art"
] | [
"art",
"kinetic art",
"lightning",
"piezo"
] | Lightning is a force to be reckoned with: ever since ancient times, humans have been in awe of the lethal power of lightning strikes and the deafening roar of thunder. Quite reasonably, they ascribed these events to acts of angry gods; today, modern science provides a more down-to-earth explanation of the physics invol... | 2 | 2 | [
{
"comment_id": "6418410",
"author": "Dry Punt",
"timestamp": "2022-01-28T19:21:14",
"content": "It looks like the last thing someone sees in a sci-fi horror movie. That’s what makes it awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6418473",
"au... | 1,760,372,806.833011 | ||
https://hackaday.com/2022/01/27/thats-no-moon-its-an-algae-robot/ | That’s No Moon… It’s An Algae Robot | Al Williams | [
"3d Printer hacks",
"Robots Hacks",
"Science"
] | [
"algae",
"robot",
"underwater"
] | When you think of a robot, you probably don’t think of a ball of underwater algae. But a team of university researchers used a 3D-printed exoskeleton and a ball of marimo algae to produce
a moving underwater sensor platform
. It is really at a proof-of-concept stage, but it seems as though it would be possible to make ... | 10 | 6 | [
{
"comment_id": "6418159",
"author": "John",
"timestamp": "2022-01-28T03:32:04",
"content": "Marimo are quite popular pets for children in Japan. You can buy one for 100 yen (less than a dollar). They don’t really do anything other than sit in a small bowl of water, so I never really saw the draw.",... | 1,760,372,806.793578 | ||
https://hackaday.com/2022/01/27/jukebox-electromechanical-automation-explained/ | Jukebox Electromechanical Automation Explained | Chris Lott | [
"Netbook Hacks"
] | [
"electromechanical",
"jukebox",
"sequencer",
"vinyl records"
] | If you ever been curious how old-school jukeboxes work, it’s all electromechanical and no computers. In a pair of videos, [Technology Connections] takes us
through a detailed dive into the operation of a 1970 Wurlitzer Statesman model 3400
that he bought with his allowance when he was in middle school. This box can pla... | 19 | 13 | [
{
"comment_id": "6418079",
"author": "LobsterBoix",
"timestamp": "2022-01-28T00:34:09",
"content": "Technology Connections has always been one of my favs, cant wait to sink into these videos tonight!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6419097",
... | 1,760,372,806.894729 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.