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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2023/05/15/zippy-plastic-welding/ | Zippy Plastic Welding | Al Williams | [
"3d Printer hacks",
"Tool Hacks"
] | [
"filler",
"hot glue",
"hot glue gun",
"plastic repair",
"plastic welding"
] | Plastic welding isn’t a new idea. But a recent video from [The Maker] shows an interesting twist. Given a broken piece of plastic, he secures it together with tape, machines out a channel around the cracks, and then
melts zip ties
into the channels. Honestly, although he mentions plastic welding and soldering, we aren’... | 53 | 17 | [
{
"comment_id": "6642823",
"author": "jpa",
"timestamp": "2023-05-15T08:09:24",
"content": "Do note that this probably only works with the high temperature hot glue guns, not the cheap low-temperature ones.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642... | 1,760,372,300.229255 | ||
https://hackaday.com/2023/05/14/missing-dr-dos-power-management-source-code-found-in-patent/ | Missing DR-DOS Power Management Source Code Found In Patent | Robin Kearey | [
"computer hacks",
"Retrocomputing",
"Software Hacks"
] | [
"DOS driver",
"DR-DOS",
"patent",
"power management",
"x86 assembly"
] | Modern processors come with all kinds of power management features, which you don’t typically notice as a user until you start a heavy program and hear the CPU fan spin up. Back in the early 1990s however, power management was largely unheard of, meaning that a CPU with nothing to do would run through an idle loop that... | 20 | 10 | [
{
"comment_id": "6642802",
"author": "Mystick",
"timestamp": "2023-05-15T05:27:41",
"content": "Good ‘ole DR-DOS… haven’t thought about that one for a while!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6643639",
"author": "Nt7Ftr",
"timest... | 1,760,372,299.5883 | ||
https://hackaday.com/2023/05/14/anodizing-titanium-in-multiple-colors/ | Anodizing Titanium In Multiple Colors | Al Williams | [
"chemistry hacks",
"Tool Hacks"
] | [
"anodizing",
"Chemistry",
"electroplating",
"titanium"
] | [Titans of CNC Machining] wanted to anodize some titanium parts. They weren’t looking for a way to make the part harder or less prone to corrosion. They just wanted some color. As you can see in the video below, the resulting setup
is much simpler
than you might think.
The first attempt, however, didn’t work out very w... | 12 | 3 | [
{
"comment_id": "6642860",
"author": "RichC",
"timestamp": "2023-05-15T10:42:31",
"content": "If the YouTube thumbnail includes someone faking an expression of surprise, I ignore the video.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642868",
"au... | 1,760,372,299.640595 | ||
https://hackaday.com/2023/05/14/hackaday-links-may-14-2023/ | Hackaday Links: May 14, 2023 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"apollo",
"bill hammack",
"electron",
"esd",
"flash memory",
"float gate",
"hackaday links",
"ikea",
"magnetron",
"MARKUS",
"Moon landing",
"mosfet",
"neolithic",
"roscosmos",
"Teardown 2023",
"usb"
] | It’s been a while since we heard from Dmitry Rogozin, the always-entertaining former director of Roscosmos, the Russian space agency. Not content with
sending mixed messages about the future of the ISS
amid the ongoing war in Ukraine, or attempting to
hack a mothballed German space telescope back into action
, Rogozin ... | 13 | 6 | [
{
"comment_id": "6642757",
"author": "tonytran2015",
"timestamp": "2023-05-14T23:23:52",
"content": "The total number of electrons in any object changes with its total electrostatic charge. An USB or any FET transistor does not change its total electrostatic charge.",
"parent_id": null,
"dep... | 1,760,372,299.909053 | ||
https://hackaday.com/2023/05/14/hackaday-prize-2023-eye-tracking-wheelchair-interface-is-a-big-help/ | Hackaday Prize 2023: Eye-Tracking Wheelchair Interface Is A Big Help | Lewin Day | [
"Misc Hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"eye tracking",
"webcam"
] | For those with quadriplegia, electric wheelchairs with joystick controls aren’t much help. Typically, sip/puff controllers or eye-tracking solutions are used, but commercial versions can be expensive. [Dhruv Batra] has been experimenting with a DIY eye-tracking solution that can be readily integrated
with conventional ... | 2 | 2 | [
{
"comment_id": "6642822",
"author": "m1ke",
"timestamp": "2023-05-15T08:07:04",
"content": "Self driving wheel chairs when?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6642912",
"author": "Ken de AC3DH",
"timestamp": "2023-05-15T14:16:53",
"con... | 1,760,372,299.518104 | ||
https://hackaday.com/2023/05/14/industrial-robot-gets-open-source-upgrade/ | Industrial Robot Gets Open-Source Upgrade | Bryan Cockfield | [
"Robots Hacks"
] | [
"controller",
"Fanuc",
"fpga",
"gcode",
"industrial",
"LinuxCNC",
"ODrive",
"open source",
"robot"
] | Industrial robots are shockingly expensive when new, typically only affordable for those running factories of some sort. Once they’ve gone through their life cycle building widgets, they can be purchased for little more than scrap value, which is essentially free compared to their original sticker price. [Excessive Ove... | 15 | 6 | [
{
"comment_id": "6642682",
"author": "jack",
"timestamp": "2023-05-14T17:17:30",
"content": "Awesome. A new heater, just in time for summer. Where I’m at, too many people are moving. We were already told that our independent power grid will not be able to cool us comfortably this summer. So we m... | 1,760,372,300.036017 | ||
https://hackaday.com/2023/05/14/a-guard-bot-for-your-home-assistant/ | A Guard Bot For Your Home Assistant | Danie Conradie | [
"home hacks",
"Robots Hacks"
] | [
"arduino",
"ESP32 camera",
"homeassistant",
"robot",
"wireless charging"
] | While fixed sensors, relays, and cameras can be helpful in monitoring your home, there are still common scenarios you need to physically go and check something. Unfortunately, this is often the case when you’re away from home. To address this challenge, [PriceLessToolkit] created a
guardian bot
that can be controlled t... | 31 | 7 | [
{
"comment_id": "6642664",
"author": "Jan",
"timestamp": "2023-05-14T15:41:49",
"content": "A well placed kick will render it nonfunctional.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642667",
"author": "Gerard Depardieu",
"timestamp": "... | 1,760,372,299.980917 | ||
https://hackaday.com/2023/05/14/artemis-ii-will-phone-home-from-the-moon-using-laser-beams/ | Artemis II Will Phone Home From The Moon Using Laser Beams | Joseph Long | [
"Laser Hacks",
"Science"
] | [
"Artemis",
"laser communication",
"nasa"
] | [NASA] Astronauts will be testing the
Orion Artemis II Optical Communications System (O2O)
to transmit live, 4K ultra-high-definition video back to Earth from the Moon. The system will also support communication of images, voice, control channels, and enhanced science data.
Aboard Orion, the space terminal includes an ... | 52 | 11 | [
{
"comment_id": "6642602",
"author": "Dude",
"timestamp": "2023-05-14T12:29:25",
"content": "I wonder if cloaca on the moon will have spinning water in left to right direction or in reverse? Is it spin-locked to movement of water on Earth (high and low Tide)?",
"parent_id": null,
"depth": 1,... | 1,760,372,300.13141 | ||
https://hackaday.com/2023/05/14/an-open-source-4-shaft-portable-loom/ | An Open-Source 4-Shaft Portable Loom | Jenny List | [
"Tool Hacks"
] | [
"loom",
"table loom",
"weaving"
] | Part of writing for Hackaday involves doing the rounds of our community’s events in search of amazing projects for your delectation. This weekend it was a trip to Maker Faire Delft, thanks to the wonders of the European Interail scheme. Once on the site,
[Aslı Aydın Aksan]’s 4-shaft weaving loom
immediately caught our ... | 18 | 6 | [
{
"comment_id": "6642608",
"author": "BT",
"timestamp": "2023-05-14T12:55:09",
"content": "Odd there’s no pic of any cloth produced even in the linked project.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642642",
"author": "Add a 555",
"t... | 1,760,372,299.694023 | ||
https://hackaday.com/2023/05/13/never-stare-down-a-robot/ | Never Stare Down A Robot | Al Williams | [
"Robots Hacks"
] | [
"blinking",
"emotion",
"human",
"robot",
"uncanny valley",
"uncannyvalley"
] | There are a few things historically difficult to make a robot do. Stairs, of course, are the obvious problem. But realistic blinking behavior is harder than you might think. At first, it might seem frivolous and simple to have a robot blink, but according to Italian scientists,
it is both more important and more diffic... | 18 | 14 | [
{
"comment_id": "6642527",
"author": "Adrienne",
"timestamp": "2023-05-14T05:13:01",
"content": "Agility Robotics’ Digit winks! – (watch at 0:14)https://twitter.com/GiryaGirl/status/1637934068783349763",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6642528",
... | 1,760,372,299.751008 | ||
https://hackaday.com/2023/05/13/esa-juices-rime-antenna-breaks-free-after-some-jiggling-and-percussive-action/ | ESA Juice’s RIME Antenna Breaks Free After Some Jiggling And Percussive Action | Maya Posch | [
"News",
"Space"
] | [
"ESA Juice",
"Non explosive actuator",
"percussive maintenance",
"satellite"
] | After ESA’s Jupiter-bound space probe Juice (Jupiter Icy Moons Explorer) launched on April 14th of this year, it initially looked as if it had squeezed out a refreshingly uneventful deployment, until it attempted to unfurl its solar panels and antennae. One of these antennae, for the RIME (Radar for Icy Moons Explorati... | 22 | 11 | [
{
"comment_id": "6642505",
"author": "Dave",
"timestamp": "2023-05-14T02:59:00",
"content": "…but Ganymede already had a population in large glasshouses where they were growing food for the belt. Then the protomolecule man came along, and other baddies then destroyed the in-orbit floating mirrors.(... | 1,760,372,300.298184 | ||
https://hackaday.com/2023/05/16/the-mos-cia-lives-on-in-74hct/ | The MOS CIA Lives On, In 74HCT | Jenny List | [
"Retrocomputing"
] | [
"6526",
"commodore",
"MOS CIA"
] | It’s always pleasing to see a project we covered in its early stages reach maturity, so were very happy to bring you an update on [Daniel Molina]’s 74HCT6526.
It’s a long-running effort to produce in 74 logic a faithful replica of the MOS Technologies CIA
, the integrated I/O and timer chip found in so many of the 1980... | 12 | 4 | [
{
"comment_id": "6643182",
"author": "ewlie",
"timestamp": "2023-05-16T09:22:13",
"content": "“functions of the original now implemented. hips and in more manufacturer specific parts” Typo?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6643216",
"author":... | 1,760,372,300.350443 | ||
https://hackaday.com/2023/05/15/a-paste-extruder-for-normal-printers/ | A Paste Extruder For Normal Printers | Jenny List | [
"3d Printer hacks"
] | [
"extruder",
"food printer",
"paste extruder"
] | In the bright sunshine of a warm spring afternoon at Delft Maker Faire, were a row of 3D printers converted with paste extruders. They were the work of [Nedji Yusufova], and though while were being shown printing with biodegradable pastes made from waste materials, we were also interested in their potential to print us... | 17 | 6 | [
{
"comment_id": "6643150",
"author": "IIVQ",
"timestamp": "2023-05-16T06:55:46",
"content": "Could you run batter through a hotend and print ánd bake it at the same time?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6643156",
"author": "Adam Ruz-Ro... | 1,760,372,300.462428 | ||
https://hackaday.com/2023/05/15/modern-co2-laser-reviewed/ | Modern CO2 Laser Reviewed | Al Williams | [
"Laser Hacks",
"Reviews"
] | [
"co2 laser",
"laser cutter",
"review"
] | If you’ve got a laser cutter, it is highly probable that it uses a laser diode. But more expensive machines use a carbon dioxide laser tube along with mirrors. There was a time when these lasers came in two flavors: very expensive and amazing or moderately expensive and cheaply made. However, we are seeing that even th... | 14 | 5 | [
{
"comment_id": "6643218",
"author": "James Reed Feeney",
"timestamp": "2023-05-16T13:29:38",
"content": "WATCH OUT HERE! These lasers are very powerful, and can burn the retnas of your eyes instantly. Eye protection is a must here. CO2 lasers emit a lower frequency infared light. Appropriate eye pr... | 1,760,372,300.400451 | ||
https://hackaday.com/2023/05/15/this-12-cnc-rotary-axis-will-make-your-head-spin/ | This $12 CNC Rotary Axis Will Make Your Head Spin | Michael Shaub | [
"cnc hacks"
] | [
"3d print",
"Autodesk Fusion 360",
"blender",
"board games",
"chess",
"cnc",
"CNC machine",
"CNC mill",
"CNC rotary axis",
"g-code",
"g-code post-processing",
"rotary axis mill",
"stepper motor",
"tailstock"
] | [legolor] brings us
a great, cheap rotary axis to add to your small 3 axis CNC mills
. How are you going to generate G-Code for this 4th axis? That’s the great part, and the hack, that [legolor] really just swapped the Y axis for the rotation. To finish the workflow and keep things
cheap
accessible to all there’s a gre... | 20 | 10 | [
{
"comment_id": "6643074",
"author": "Diggedypomme",
"timestamp": "2023-05-15T23:27:10",
"content": "I struggle to get mine to work well on just 3 axis – these look great",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6643086",
"author": "Meatspin",
"t... | 1,760,372,300.524311 | ||
https://hackaday.com/2023/05/15/a-free-tv-with-a-catch-new-normal-or-inevitable-hardware-bonanza/ | A Free TV With A Catch: New Normal Or Inevitable Hardware Bonanza? | Jenny List | [
"home hacks"
] | [
"4x",
"adverts",
"startup",
"television",
"telly"
] | The dystopian corporate dominated future may have taken a step closer, as a startup called Telly promises
a free 55 inch 4K TV with a catch — a second screen beneath the main one that displays adverts
. The viewers definitely aren’t the customers but the product, and will no doubt have every possible piece of data that... | 66 | 23 | [
{
"comment_id": "6643006",
"author": "BIll Gates",
"timestamp": "2023-05-15T20:07:18",
"content": "reminds me of this:I’d just disconnect the screen header from the second screen, and some lenses and some paint could fool the viewer sensors. Or, you know , I could not just sign up for that crap.data... | 1,760,372,300.762613 | ||
https://hackaday.com/2023/05/15/hackaday-prize-2023-a-diy-voice-control-module/ | Hackaday Prize 2023: A DIY Voice-Control Module | Lewin Day | [
"Misc Hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"raspberry pi",
"voice",
"voice assistant",
"voice recognition"
] | If science fiction taught us anything, it’s that voice control was going to be the human-machine interface of the future. [Dennis] has now whipped up a tutorial
that lets you add a voice control module to any of your own projects.
The voice control module uses a Raspberry Pi 4 as the brains of the operation, paired wit... | 13 | 4 | [
{
"comment_id": "6642986",
"author": "4t34",
"timestamp": "2023-05-15T19:15:45",
"content": "mycroft?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6643016",
"author": "Andy",
"timestamp": "2023-05-15T20:32:05",
"content": "Its dead ... | 1,760,372,300.8109 | ||
https://hackaday.com/2023/05/15/new-dos-pcs-in-2023/ | New DOS PCs, In 2023? | Jenny List | [
"Retrocomputing"
] | [
"386sx",
"8088",
"AliExpress",
"dos",
"pc",
"windows 95"
] | It’s not likely that we’ll talk about a new PC here at Hackaday because where’s the news in yet another commodity computer? But today along comes not one but two new PCs courtesy of the ever bounteous hall of wonders at AliExpress, that are unusual enough to take a look at. If you have around $250 to spare, you can hav... | 85 | 29 | [
{
"comment_id": "6642961",
"author": "Michael Black",
"timestamp": "2023-05-15T18:27:36",
"content": "For $250 I’ll get a refurbished i7 with at least 16gb of Ram and a SSD.Life goes on.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642964",
"autho... | 1,760,372,301.031417 | ||
https://hackaday.com/2023/05/13/hackaday-prize-2023-the-neoklacker-pocket-computer/ | Hackaday Prize 2023: The NEOKlacker Pocket Computer | Lewin Day | [
"Raspberry Pi",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"cyberdeck",
"handheld computer",
"raspberry pi"
] | Science fiction always promised us pocket computers. These days, we’re spoiled for choice. [Spider Jerusalem] eschewed a simple smartphone or tablet, though,
instead building a custom pocket computer of their own design.
Like so many other
DIY cyberdecks
and
handheld computers
, this one relies on a Raspberry Pi. In th... | 12 | 6 | [
{
"comment_id": "6642440",
"author": "Sword",
"timestamp": "2023-05-13T23:55:44",
"content": "God I wish somebody would sell a kit. Closest commercial thing is the clockworkpi uconsole and who knows when that will actually *finally* ship",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,300.660735 | ||
https://hackaday.com/2023/05/13/home-heating-with-bitcoin-miners-is-now-a-real-thing/ | Home Heating With Bitcoin Miners Is Now A Real Thing | Tom Nardi | [
"home hacks"
] | [
"ASIC",
"bitcoin",
"bitcoin mining",
"heater"
] | If you were reading this post a month ago, you could have been forgiven for thinking it was an April Fools post. But we assure you, this is no joke. A company called HeatBit has recently opened preorders for their second generation of
Bitcoin miner that doubles as a space heater
.
The logic goes something like this: if... | 64 | 16 | [
{
"comment_id": "6642386",
"author": "Urgon",
"timestamp": "2023-05-13T20:24:32",
"content": "It might not be April, but there will be plenty of fools involved anyway…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6644728",
"author": "Matthew Newton... | 1,760,372,301.148205 | ||
https://hackaday.com/2023/05/13/remembering-virginia-norwood-mother-of-nasas-landsat-success/ | Remembering Virginia Norwood, Mother Of NASA’s Landsat Success | Donald Papp | [
"Science",
"Space"
] | [
"landsat",
"multispectral",
"multispectral imaging",
"nasa",
"women in science"
] | Virginia T. Norwood passed away earlier this year at the age of 96, and
NASA’s farewell to this influential pioneer
is a worth a read. Virginia was a brilliant physicist and engineer, and among her other accomplishments, we have her to thank for the ongoing success of the
Landsat program
, which continues to this day.
... | 13 | 8 | [
{
"comment_id": "6642352",
"author": "Ale",
"timestamp": "2023-05-13T18:11:47",
"content": "this",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6642361",
"author": "Reggie",
"timestamp": "2023-05-13T18:46:39",
"content": "There wouldn’t be differen... | 1,760,372,301.2044 | ||
https://hackaday.com/2023/05/13/tools-of-the-trade-dirt-cheap-or-too-dirty/ | Tools Of The Trade: Dirt Cheap Or Too Dirty? | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Slider",
"Tool Hacks"
] | [
"cheap tools",
"newsletter",
"oscilloscope",
"tools"
] | We’ve recently seen a
couple reviews of a particularly cheap oscilloscope
that, among other things, doesn’t meet its advertised specs. Actually, it’s not even close. It claims to be a 100 MHz scope, and it’s got around 30 MHz of bandwidth instead. If you bought it for higher frequency work, you’d have every right to be... | 69 | 17 | [
{
"comment_id": "6642295",
"author": "Frank Smith",
"timestamp": "2023-05-13T14:09:45",
"content": "Eliot are you mad, using an unearthed scope or a live mains circuit is asking to die!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642313",
"author... | 1,760,372,301.316517 | ||
https://hackaday.com/2023/05/13/tiny-bitcoin-miner-plays-the-lottery/ | Tiny Bitcoin Miner Plays The Lottery | Bryan Cockfield | [
"Raspberry Pi"
] | [
"ant miner",
"bitcoin",
"lottery",
"lottery mining",
"mining",
"raspberry pi",
"SHA256"
] | Usually when we think of Bitcoin miners, we imagine huge facilities of server racks doing nothing but essentially wasting energy, all for the chance that one of those computers amongst the rows will stumble upon the correct set of numbers to get rewarded with imaginary money. The idea being that the more computers, the... | 113 | 14 | [
{
"comment_id": "6642269",
"author": "Alex",
"timestamp": "2023-05-13T11:43:00",
"content": "The whole feel of the article write up projects a definite “bitcoin is a waste of energy and isn’t real money” which is fine for an opinion piece but not cool for real journalism. I wonder if the author of t... | 1,760,372,301.466537 | ||
https://hackaday.com/2023/05/13/passively-generating-power-day-and-night-takes-the-right-parts/ | Passively Generating Power Day And Night Takes The Right Parts | Donald Papp | [
"green hacks"
] | [
"generator",
"green power",
"passive",
"TEG",
"thermoelectric"
] | A thermoelectric generator (TEG) can turn a temperature difference into electricity, and while temperature differentials abound in our environment, it’s been difficult to harness them into practical and stable sources of power. But researchers in China have succeeded in creating
a TEG that can passively and continuousl... | 18 | 5 | [
{
"comment_id": "6642245",
"author": "Nickpicking Butt",
"timestamp": "2023-05-13T08:23:35",
"content": "> As mentioned, it’s not a lot ofpower(we’re talking millivolts):/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642322",
"author": "Cyna",
... | 1,760,372,301.525668 | ||
https://hackaday.com/2023/05/12/a-non-destructive-digital-back-for-a-classic-leica/ | A Non-Destructive Digital Back For A Classic Leica | Jenny List | [
"digital cameras hacks",
"Raspberry Pi"
] | [
"35mm camera",
"digital camera conversion",
"leica",
"rangefinder",
"Raspberry Pi HQ camera"
] | As digital photography has become so good, perhaps just
too
good, at capturing near-perfect pictures, some photographers have ventured back into the world of film. There they have found the imperfections requiring technical skill to cope with that they desire, but they’ve also come face-to-face with the very high cost ... | 16 | 8 | [
{
"comment_id": "6642231",
"author": "Artenz",
"timestamp": "2023-05-13T06:47:42",
"content": "So what properties of the Leica are preserved ? It’s just used as a black empty box with a lens mount, but due to heavy cropping no longer gives the same picture quality as the original lenses.",
"pare... | 1,760,372,301.579963 | ||
https://hackaday.com/2023/05/12/3d-design-with-text-based-ai/ | 3D Design With Text-Based AI | Bryan Cockfield | [
"News"
] | [
"3d",
"artificial intelligence",
"generative AI",
"model",
"neural radiance fields",
"openai",
"textured meshes"
] | Generative AI is the new thing right now, proving to be a useful tool both for professional programmers, writers of high school essays and all kinds of other applications in between. It’s also been shown to be effective in generating images, as the DALL-E program has demonstrated with its impressive image-creating abil... | 8 | 2 | [
{
"comment_id": "6642211",
"author": "𐂀 𐂅",
"timestamp": "2023-05-13T02:47:38",
"content": "“chair shaped like an avocado” was a thing even before teh interwebs and AI, so generating tweens between that and actual avocadoes is facil. Try getting an AI to produce a decent image of an octopus weari... | 1,760,372,301.669059 | ||
https://hackaday.com/2023/05/12/your-childhood-inventions-brought-to-life/ | Your Childhood Inventions Brought To Life | Al Williams | [
"Misc Hacks"
] | [
"Donttrythisathome",
"inventions",
"whimsical"
] | If you are the kind of person who reads Hackaday, you probably spent time in school doodling little design day dreams. [Allen Pan] gets it, and he’s taken it upon himself to make some of those daydreams into
reality
. You can see how it worked out — or didn’t — in the video below.
The video starts out with suction cup ... | 8 | 5 | [
{
"comment_id": "6642188",
"author": "Hirudinea",
"timestamp": "2023-05-12T23:55:20",
"content": "Rosa Klebb called, she wants her shoes back.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6642212",
"author": "Garth Bock",
"timestamp": "2023-05-13T03:... | 1,760,372,301.623898 | ||
https://hackaday.com/2023/05/12/the-peak-of-vacuum-tube-radio-design/ | The Peak Of Vacuum Tube Radio Design | Bryan Cockfield | [
"Radio Hacks"
] | [
"40m",
"cw",
"diy",
"morse",
"mountain",
"peak",
"pota",
"QRP",
"radio",
"SOTA",
"summit",
"summits on the air",
"tube",
"vacuum tube"
] | One of the more popular trends in the ham radio community right now is operating away from the shack. Parks on the Air (POTA) is an excellent way to take a mobile radio off-grid and operate in the beauty of nature, but for those who want to take their rig to more extreme locations there’s another operating award progra... | 19 | 6 | [
{
"comment_id": "6642128",
"author": "Leonardo",
"timestamp": "2023-05-12T21:07:21",
"content": "CW? Useless.If you like the old stuff, better use a spark transmitter.We’re going to get to the year 3000 and some will still be on CW. It’s time to let him die.",
"parent_id": null,
"depth": 1,
... | 1,760,372,301.722412 | ||
https://hackaday.com/2023/05/12/hackaday-prize-2023-finger-tracking-via-muscle-sensors/ | Hackaday Prize 2023: Finger Tracking Via Muscle Sensors | Lewin Day | [
"The Hackaday Prize",
"Wearable Hacks"
] | [
"2023 Hackaday Prize",
"finger sensor",
"machine learning",
"muscle sensor",
"prosthetic",
"prosthetics"
] | Whether you want to build a computer interface device, or control a prosthetic hand, having some idea of a user’s finger movements can be useful. The OpenMuscle finger tracking sensor can offer the data you need,
and it’s a device you can readily build in your own workshop.
The device consists of a wrist cuff that moun... | 5 | 2 | [
{
"comment_id": "6642118",
"author": "Gregg Eshelman",
"timestamp": "2023-05-12T20:49:23",
"content": "Use it for a battle bot control input.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6642182",
"author": "𐂀 𐂅",
"timestamp": "2023-05-12T23:24:04"... | 1,760,372,301.762953 | ||
https://hackaday.com/2023/05/12/what-is-a-schumann-resonance-and-why-am-i-being-offered-a-7-83hz-oscillator/ | What Is A Schumann Resonance And Why Am I Being Offered A 7.83Hz Oscillator? | Jenny List | [
"Featured",
"Interest",
"Science"
] | [
"AliExpress",
"pseudoscience",
"Schumann resonance",
"science"
] | Something that probably unites many Hackaday readers is an idle pursuit of browsing AliExpress for new pieces of tech. Perhaps it’s something akin to social media doomscrolling without the induced anger, and it’s certainly entertaining to see some of the weird and wonderful products that can be had for a few dollars an... | 111 | 46 | [
{
"comment_id": "6642025",
"author": "Rog Fanther",
"timestamp": "2023-05-12T17:11:26",
"content": "Hmm…could that thing be modded into a wireless phone charger ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642035",
"author": "Pete",
"tim... | 1,760,372,302.662438 | ||
https://hackaday.com/2023/05/12/hackaday-podcast-218-open-source-ai-the-rescue-of-salyut-7-the-homework-machine/ | Hackaday Podcast 218: Open Source AI, The Rescue Of Salyut 7, The Homework Machine | Kristina Panos | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | This week, Editor-in-Chief Elliot Williams and Kristina Panos have much in the way of Hackaday news — the Op Amp Challenge is about halfway over, and there are roughly three weeks left in the Assistive Tech challenge of the 2023 Hackaday Prize. Show us what you’ve got on the analog front, and then see what you can do t... | 7 | 4 | [
{
"comment_id": "6642086",
"author": "Dude",
"timestamp": "2023-05-12T19:23:03",
"content": "What threw me off with the percolator sound is that it was too fast and consistent. The percolators I’ve used had a significant and random delay with the bubbling cycles, which is why I though it was someth... | 1,760,372,302.186665 | ||
https://hackaday.com/2023/05/12/op-amp-challenge-interactive-analog-led-wave-array/ | Op-Amp Challenge: Interactive Analog LED Wave Array | Dave Rowntree | [
"Art",
"computer hacks"
] | [
"analog computing",
"differential equation",
"infrared",
"integrator",
"opamp",
"photodiode",
"wave equation"
] | A while back, [Chris Lu] was studying how analog circuits, specifically op-amps can be used to perform mathematical operations and wondered if they could be persuaded to solve differential equations, such as the wave equation. After sitting on the idea for a few years, it was time to make it a reality, and the result i... | 20 | 9 | [
{
"comment_id": "6641988",
"author": "spiritplumber@gmail.com",
"timestamp": "2023-05-12T15:35:37",
"content": "This is so pretty and elegant. I wonder if it can be wired as a neural network?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642049",
"... | 1,760,372,302.509351 | ||
https://hackaday.com/2023/05/12/this-week-in-security-tpm-and-bootguard-drones-and-coverups/ | This Week In Security: TPM And BootGuard, Drones, And Coverups | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"drones",
"This Week in Security",
"TPM"
] | Full disk encryption is the go-to solution for hardening a laptop against the worst-case scenario of physical access. One way that encryption can be managed is through a Trusted Platform Module (TPM), a chip on the motherboard that manages the disk encryption key, and only hands it over for boot after the user has auth... | 17 | 5 | [
{
"comment_id": "6641984",
"author": "ONV",
"timestamp": "2023-05-12T15:31:27",
"content": "What’s a “honeypot”?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641993",
"author": "Sword",
"timestamp": "2023-05-12T15:53:49",
"content"... | 1,760,372,302.442648 | ||
https://hackaday.com/2023/05/12/tricorder-tutorial-isnt-just-for-starfleet-cadets/ | Tricorder Tutorial Isn’t Just For Starfleet Cadets | Tom Nardi | [
"handhelds hacks",
"LED Hacks",
"Microcontrollers"
] | [
"prop",
"reproduction",
"star trek",
"tricorder"
] | For many of us, the most difficult aspect of a project comes when it’s time to document the thing. Did you take enough pictures? Did you remember all the little details that it took to put it together? Should you explain those handful of oddball quirks, even though you’re probably the only person in the world that know... | 30 | 8 | [
{
"comment_id": "6641946",
"author": "James A Dahlberg",
"timestamp": "2023-05-12T12:22:12",
"content": "So all it really does is display some canned graphics and make annoying noises.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641948",
"author"... | 1,760,372,302.13382 | ||
https://hackaday.com/2023/05/12/laser-projector-built-from-an-old-hard-drive/ | Laser Projector Built From An Old Hard Drive | Bryan Cockfield | [
"Laser Hacks"
] | [
"3d printed",
"hard drive",
"laser",
"persistence of vision",
"projector"
] | Spinning hard drives are being phased out of most consumer-grade computers in favor of faster technology like solid-state drives and their various interfaces. But there’s still millions of them in circulation that will eventually get pulled from service — so what do we do with them? If you’ve got one that would otherwi... | 41 | 20 | [
{
"comment_id": "6641887",
"author": "ian 42",
"timestamp": "2023-05-12T08:14:17",
"content": "impressive, but your not getting my spinning rust anytime soon…Yes, it’s Ok to have a TB or 2 for our fast storage for project files etc, and to boot off, but nothing compares to spinning disks for $/TB fo... | 1,760,372,302.388402 | ||
https://hackaday.com/2023/05/11/a-4-player-arcade-hidden-inside-a-coffee-table/ | A 4-Player Arcade Hidden Inside A Coffee Table | Dave Rowntree | [
"classic hacks",
"Games"
] | [
"arcade button",
"Batocera",
"coffee table",
"diy",
"happ",
"Joystick",
"raspberry pi 400",
"retrogaming",
"RGB LED"
] | [Ed] from
50% Awesome
on YouTube wanted to build a retro gaming system with a decent screen size, but doesn’t have a great deal of space to site it in, so a good compromise was t
o make a piece of useful furniture and hide all the fun parts inside
.
Building an arcade machine usually involves a lot of wiring
This video... | 3 | 3 | [
{
"comment_id": "6641866",
"author": "Bill",
"timestamp": "2023-05-12T06:43:33",
"content": "Kool",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6641893",
"author": "Daid",
"timestamp": "2023-05-12T08:24:51",
"content": "Really cool build, but that... | 1,760,372,302.705875 | ||
https://hackaday.com/2023/05/11/reverse-engineering-an-oil-burner-comms-board-with-a-few-lucky-breaks/ | Reverse Engineering An Oil Burner Comms Board, With A Few Lucky Breaks | Dan Maloney | [
"home hacks",
"Reverse Engineering"
] | [
"Buderus",
"ESP32",
"esphome",
"oil burner",
"reverse engineering",
"rs-232",
"wifi"
] | Here’s a question for you: How do you reverse engineer a circuit when you don’t even have it in hand? It’s an interesting problem, and it adds a level of difficulty to the already iffy proposition that reverse engineering generally presents. And yet, not only did [themole] find
a way to replicate a comms board for his ... | 3 | 2 | [
{
"comment_id": "6641863",
"author": "Slurm",
"timestamp": "2023-05-12T06:18:31",
"content": "I had a very similar problem with the same buderus controller a while back. I also had thought about some form of remote system to check on the thing for errors. But in the end i ended up just repairing the... | 1,760,372,302.848073 | ||
https://hackaday.com/2023/05/11/converting-on-grid-electronics-to-off-grid/ | Converting On-Grid Electronics To Off-Grid | Dave Rowntree | [
"car hacks",
"Solar Hacks"
] | [
"dc-dc",
"inverter",
"LiFePO4",
"off grid",
"solar",
"Starlink",
"wall warts"
] | Husband and wife team [Jason & Kara] hail from Canada, and in 2018, after building their own camper, sold up their remaining earthly goods and headed south. If you’re not aware of them, they documented their journey on their YouTube channel, showing many interesting skills and hacks along the way. The
video we’re highl... | 54 | 11 | [
{
"comment_id": "6641829",
"author": "Everlanders - Jason",
"timestamp": "2023-05-12T01:16:38",
"content": "Never thought I’d see the day…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6642044",
"author": "Andy",
"timestamp": "2023-05-12T17:... | 1,760,372,302.807219 | ||
https://hackaday.com/2023/05/11/fnirsi-vs-rigol-an-alternate-view/ | FNIRSI Vs Rigol: An Alternate View | Al Williams | [
"Reviews"
] | [
"FNIRSI",
"oscilloscope",
"rigol"
] | We’ve heard of the FNIRSI 1014D scope, but we’ve had the impression that it might not be a great scope, although it is economical. [Learn Electronics Repair] had heard from another YouTuber that it was “a piece of junk.” However, he wanted to
look at it compared to another inexpensive scope
, the Rigol DS1052E. His res... | 31 | 12 | [
{
"comment_id": "6641809",
"author": "Urgon",
"timestamp": "2023-05-11T22:54:53",
"content": "In Poland this oscilloscope is cheaper than vintage analog scopes. Even if it has bandwidth of 30MHz, it’s still a decent tool in my opinion for people who can’t afford anything better. Seriously, 20 years ... | 1,760,372,302.923672 | ||
https://hackaday.com/2023/05/10/exploiting-hardware-level-parallelism-in-the-manticore-hardware-accelerated-rtl-simulator/ | Exploiting Hardware-Level Parallelism In The Manticore Hardware-Accelerated RTL Simulator | Maya Posch | [
"hardware"
] | [
"hdl",
"rtl simulator",
"verilator"
] | Before a chip design is turned from a hardware design language (HDL) like VHDL or Verilog into physical hardware, testing and validating the design is an essential step. Yet simulating a HDL design is rather slow due to the simulator using either only a single CPU thread, or limited multi-threading due to the requireme... | 10 | 6 | [
{
"comment_id": "6641572",
"author": "C. Scott Ananian",
"timestamp": "2023-05-11T02:35:10",
"content": "RTL = Register Transfer Level (not “transistor”)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6641588",
"author": "Drone",
"timestamp": "2023-05-... | 1,760,372,302.983011 | ||
https://hackaday.com/2023/05/10/exploring-the-early-days-of-qrp-radio/ | Exploring The Early Days Of QRP Radio | Bryan Cockfield | [
"Radio Hacks"
] | [
"continuous wave",
"low power",
"morse code",
"QRP",
"qrpp",
"radio",
"retro",
"transistor"
] | Morse code might seem obsolete but for situations with extremely limited bandwidth it’s often still the best communications option available. The code requires a fair amount of training to use effectively, though, and even proficient radio operators tend to send only around 20 words per minute. As a result of the reduc... | 23 | 9 | [
{
"comment_id": "6641533",
"author": "craig",
"timestamp": "2023-05-10T23:56:45",
"content": "I thought most people consider QRP to be 5W or less.Learning to operate CW is tons of fun and I have to say, my $1000 rig is amazing with its ability to zero beat as well as built in decoder. Because CW is ... | 1,760,372,303.18365 | ||
https://hackaday.com/2023/05/10/low-frequency-dc-block-lets-you-measure-ripple-better/ | Low-Frequency DC Block Lets You Measure Ripple Better | Dan Maloney | [
"Misc Hacks"
] | [
"bias",
"DC block",
"filter",
"offset",
"PIN diode",
"ripple"
] | We all know how to block the DC offset of an AC signal — that just requires putting a capacitor in series, right? But what if the AC signal doesn’t alternate very often? In that case, things get a little more complicated.
Or at least that’s what [Limpkin] discovered, which led him to design
this low-frequency DC block
... | 12 | 5 | [
{
"comment_id": "6641497",
"author": "macsimski",
"timestamp": "2023-05-10T21:32:44",
"content": "It would be interesting to see what a very low esr capacitor would achieve.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641550",
"author": "Herr Bra... | 1,760,372,303.033525 | ||
https://hackaday.com/2023/05/10/tiny-microcontroller-uses-real-time-operating-system/ | Tiny Microcontroller Uses Real-Time Operating System | Bryan Cockfield | [
"home hacks"
] | [
"automation",
"ESP32",
"home",
"real time operating system",
"RTOS",
"smoke detector",
"switching",
"temperature"
] | Most of the computers we interact with on a day-to-day basis use an operating system designed for flexibility. While these are great tools for getting work done or scrolling your favorite sites, they have a weakness when it comes to interacting quickly with a real-world environment. For these kinds of low-latency, high... | 51 | 11 | [
{
"comment_id": "6641447",
"author": "Norbert",
"timestamp": "2023-05-10T18:52:46",
"content": "Nice project to study the evolution of operating systems!But: Is a microcontroller running an operating system still a microcontroller? ;-)",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,303.121776 | ||
https://hackaday.com/2023/05/10/hackaday-prize-2023-65uino-6502-learning-in-a-familiar-package/ | Hackaday Prize 2023: 65uino 6502 Learning In A Familiar Package | Dave Rowntree | [
"Arduino Hacks",
"computer hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"6502",
"6507",
"6532",
"Arduino Uno",
"riot"
] | [Anders Nielsen] presents his entry for the 2023 Hackaday Prize:
The 65uino
. Which as you might be able to guess, is a 6502-based microcomputer wedged into an Arduino Uno form factor (well, almost wedged in, but we’ll let it slide) The premise is simple, older micros are easier to understand, the board can be build up... | 20 | 5 | [
{
"comment_id": "6641404",
"author": "YGDES",
"timestamp": "2023-05-10T15:48:40",
"content": "OK, That’s a perfect practical joke, but we’re in May, April 1st is now gone. I fail to see the point in actually helping education.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,303.955002 | ||
https://hackaday.com/2023/05/10/supercon-2023-is-on-we-want-you/ | Supercon 2023 Is On, We Want You! | Elliot Williams | [
"cons",
"Featured"
] | [
"2023 Hackaday Supercon",
"2023 Hackaday Superconference",
"Supercon",
"Superconference"
] | We’re absolutely excited to be able to announce that the Hackaday Supercon is on for 2023, and will be taking place Nov 3 – Nov 5 in sunny Pasadena CA. And with that, we’d like to open the floodgates: we’d like to hear your proposals for talks and workshops! The
Call for Speakers
and
Call for Workshops
forms are online... | 15 | 10 | [
{
"comment_id": "6641403",
"author": "matt venn",
"timestamp": "2023-05-10T15:46:59",
"content": "superconnnnn!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6641463",
"author": "Randy",
"timestamp": "2023-05-10T19:45:39",
"content": "Hotel avai... | 1,760,372,303.894816 | ||
https://hackaday.com/2023/05/10/clever-optics-make-clocks-digits-float-in-space/ | Clever Optics Make Clock’s Digits Float In Space | Robin Kearey | [
"clock hacks",
"LED Hacks"
] | [
"AIRR",
"clock",
"holographic display",
"LED display"
] | If you’ve never heard of Aerial Imaging by Retro-Reflection, or AIRR for short, you’re probably not the only one. It’s a technique developed by researchers at Utsunomiya University that uses beam splitters and retroreflective foil to create the illusion of an image floating freely in the air. Hackaday alum [Moritz v. S... | 15 | 3 | [
{
"comment_id": "6641335",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-05-10T11:49:40",
"content": "A Hackaday contributor writing about a project done by another Hackaday contributor.Interesting…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,372,303.618404 | ||
https://hackaday.com/2023/05/11/hackaday-prize-2023-uno-plus-updates-a-classic/ | Hackaday Prize 2023: Uno Plus+ Updates A Classic | Dave Rowntree | [
"Arduino Hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"Arduino Uno",
"RGB LED"
] | As an introduction to embedded electronics and programming in a straightforward environment, there isn’t much out there that can hold a torch to the Arduino Uno. Cheap (especially if you count the clones), easy to find, and quick to deploy, with countless support libraries, it’s a go-to for many a hack. This scribe sim... | 19 | 7 | [
{
"comment_id": "6641753",
"author": "MarB",
"timestamp": "2023-05-11T18:47:17",
"content": "This project is actually my favorite Re-engineering Education entry for the Hackaday prize. It’s well documented, great emphasis is placed on aesthetics and the illuminated headers are just badass. Too bad i... | 1,760,372,303.832437 | ||
https://hackaday.com/2023/05/11/hackaday-prize-2023-meet-the-ten-re-engineering-education-finalists/ | Hackaday Prize 2023: Meet The Ten Re-Engineering Education Finalists | Tom Nardi | [
"Featured",
"Slider",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"2023 Hackaday Supercon",
"2023 Hackaday Superconference"
] | They say time flies when you’re having fun, and doubly so when you’re hacking hardware. If you can believe it, we’ve already closed out the first challenge of the
2023 Hackaday Prize
, and you know what that means — it’s time to announce the 10 finalists.
As a reminder, each of these projects not only takes home $500 U... | 31 | 8 | [
{
"comment_id": "6641743",
"author": "come2",
"timestamp": "2023-05-11T18:00:56",
"content": "Many of these are quite good projects, too bad they don’t have their own article to present them and why they were chosen. A theme like this is good because It allows to highlight projects that take into ac... | 1,760,372,303.700257 | ||
https://hackaday.com/2023/05/11/jump-like-mario-with-this-weighted-wearable/ | Jump Like Mario With This Weighted Wearable | Bryan Cockfield | [
"Virtual Reality",
"Wearable Hacks"
] | [
"backpack",
"falling",
"jumping",
"movement",
"moving weight",
"robot",
"virtual reality",
"vr",
"wearable",
"weight"
] | Virtual reality has come a long way in the past decade, with successful commercial offerings for gaming platforms still going strong as well as a number of semi-virtual, or augmented, reality tools that are proving their worth outside of a gaming environment as well. But with all this success they still haven’t quite f... | 5 | 3 | [
{
"comment_id": "6641744",
"author": "Foldi-One",
"timestamp": "2023-05-11T18:03:29",
"content": "Interesting idea, though it seems like it needs to have 2 maybe 3 more that can work against each other. So you can get some degree of rapid recharge and perhaps provide more nuance to the feedback as w... | 1,760,372,303.561675 | ||
https://hackaday.com/2023/05/11/linux-fu-c-on-jupyter/ | Linux Fu: C On Jupyter | Al Williams | [
"Hackaday Columns",
"Linux Hacks"
] | [
"Jupyter Notebook",
"linux"
] | If you are a Pythonista or a data scientist, you’ve probably used Jupyter. If you haven’t, it is an interesting way to work with Python by placing it in a Markdown document in a web browser. Part spreadsheet, part web page, part Python program, you create notebooks that can contain data, programs, graphics, and widgets... | 22 | 11 | [
{
"comment_id": "6641689",
"author": "zoobab",
"timestamp": "2023-05-11T14:17:13",
"content": "Jupyter as Arduino IDE replacement?I am trying to use WebUSB and port some flashing tools to be able to talk to USB devices.Arduino forked the Theia browser, but the web part is not published. Or maybe the... | 1,760,372,303.769938 | ||
https://hackaday.com/2023/05/11/a-crash-course-on-how-mri-machines-work/ | A Crash Course On How MRI Machines Work | Dave Rowntree | [
"Medical Hacks"
] | [
"coils",
"fourier transform",
"magnet",
"medical",
"mri"
] | Of all the high-tech medical gadgets we read about often, the Magnetic Resonance Imaging (MRI) machine is possibly the most mysterious of all. The ability to peer inside a living body, in a minimally invasive manner whilst differentiating tissue types, in near real-time was the stuff of science fiction not too many yea... | 32 | 9 | [
{
"comment_id": "6641649",
"author": "Ostracus",
"timestamp": "2023-05-11T11:38:42",
"content": "“See? It’s easy.”I remember a book I had on the math behind MRI. A phone book sized tome.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641654",
"autho... | 1,760,372,305.795104 | ||
https://hackaday.com/2023/05/11/oscope-advert-from-1987-rocks-it/ | OScope Advert From 1987 Rocks It | Al Williams | [
"Tool Hacks"
] | [
"nostalgia",
"oscilloscope",
"tektronix"
] | We can’t remember ever seeing a late-night TV ad for oscilloscopes before but, for some reason, Tektronix did
produce a video ad
in 1987. You can see it below and enjoy the glorious music and video production standards of the 1980s.
We assume this was made to show at some trade show or the like. Even if there was a Hom... | 31 | 13 | [
{
"comment_id": "6641616",
"author": "hinspect",
"timestamp": "2023-05-11T08:21:24",
"content": "I have a small collection of Tektronix 422 scopes, one in new condition. Half Tube with Solid State. Why? I have no idea…☺",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment... | 1,760,372,305.720227 | ||
https://hackaday.com/2023/05/10/op-amp-contest-magnetic-core-memory-the-dr-cockroach-way/ | Op Amp Contest: Magnetic Core Memory The Dr Cockroach Way | Dave Rowntree | [
"computer hacks"
] | [
"differential amplifier",
"magnetic core",
"opamp",
"ram"
] | No matter how memory technology marches on, magnetic core memory is still cool. Radiation-hard, nonvolatile, and so pretty. What’s there not to love? [Mark Nesselhaus] is no stranger to fun in-your-face electronics builds — judging from his hackaday.io projects — and this entry to the Hackaday Op-Amp contest is no outl... | 24 | 5 | [
{
"comment_id": "6641604",
"author": "Ukmaker",
"timestamp": "2023-05-11T06:40:05",
"content": "Where’s the op-amp?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641606",
"author": "Dave Rowntree",
"timestamp": "2023-05-11T07:18:36",
... | 1,760,372,306.060507 | ||
https://hackaday.com/2023/05/10/a-look-inside-a-vintage-aircraft-altimeter/ | A Look Inside A Vintage Aircraft Altimeter | Dan Maloney | [
"classic hacks",
"Repair Hacks"
] | [
"aircraft",
"altimeter",
"aneroid",
"avionics",
"repair",
"teardown",
"vintage"
] | There’s a strange synchronicity in the projects we see here at Hackaday, where different people come up with strikingly similar stuff at nearly the same time. We’re not sure why this is, but it’s easily observable, with
this vintage altimeter teardown and repair
by our good friend [CuriousMarc] as the latest example.
T... | 21 | 4 | [
{
"comment_id": "6641312",
"author": "Alan",
"timestamp": "2023-05-10T08:57:38",
"content": "Please be *VERY* careful with old aircraft instruments, some of them have Radium markings for the digits and the pointers, which gives off Radon gas, which decays into solid radioactive elements which can lo... | 1,760,372,305.654813 | ||
https://hackaday.com/2023/05/09/wordstar-reborn/ | WordStar Reborn | Al Williams | [
"Retrocomputing",
"Software Hacks"
] | [
"retrocomputing",
"wordstar"
] | Wordstar was the word processor that helped sell the personal computer. At one time, it was ubiquitous, and many authors had a hard time giving it up. Some, like George R. R. Martin, apparently are still refusing to give it up. But most of us have moved on. Thanks to an open-source clone,
WordTsar
, you may not have to... | 48 | 19 | [
{
"comment_id": "6641279",
"author": "Mikepl",
"timestamp": "2023-05-10T05:36:18",
"content": "Ctrl-k b, ctrl-k k sequence always in our hearts!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641288",
"author": "LC",
"timestamp": "2023-05-10... | 1,760,372,306.139923 | ||
https://hackaday.com/2023/05/09/scorched-moon-secret-project-a119/ | Scorched Moon: Secret Project A119 | Al Williams | [
"Misc Hacks"
] | [
"cold war",
"history",
"nuclear"
] | In today’s world, it is hard to realize how frightened Americans were at the news of Sputnik orbiting the Earth. Part of it was a fear of what a rival nation could do if they could fly over your country with impunity. Part of it was simply fear generated by propaganda. While America won the race to the moon, that wasn’... | 35 | 11 | [
{
"comment_id": "6641255",
"author": "Michael Black",
"timestamp": "2023-05-10T02:17:29",
"content": "Don’t forget, Heinlein had nazis on the moon with nuclear bombs in Rocket Ship Galileo.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6641258",
"author":... | 1,760,372,305.903252 | ||
https://hackaday.com/2023/05/09/tiny-orrery-keeps-the-planets-in-their-places/ | Tiny Orrery Keeps The Planets In Their Places | Dan Maloney | [
"Misc Hacks"
] | [
"basswood",
"engraved",
"esp32-C3",
"laser cutter",
"orrery",
"planetarium",
"zodiac"
] | [Frans] claims to have made
the world’s smallest wooden orrery
. We won’t take a position on that — such things are best left up to the good folks at Guinness. But given that the whole thing is seriously in danger of being dwarfed by a USB-C connector, we’d say he’s got a pretty good shot at that record.
The key to kee... | 9 | 8 | [
{
"comment_id": "6641239",
"author": "CityZen",
"timestamp": "2023-05-09T23:50:00",
"content": "Nice and simple, but I prefer it when you can speed up time to see the planets spin around with appropriate relative velocities. Doing it with this one would require a time lapse.",
"parent_id": null... | 1,760,372,305.494579 | ||
https://hackaday.com/2023/05/09/making-music-by-probing-magnetite-crystals/ | Making Music By Probing Magnetite Crystals | Dave Rowntree | [
"Art"
] | [
"arduino",
"art",
"conductivity",
"Lattepanda",
"magnetite",
"pure data",
"servo",
"vvvv"
] | Well, noises anyway. [Dmitry Morozov] and [Alexandra Gavrilova] present an
interesting electronics-based art installation
, which probes a large chunk of crystalline magnetite, using a pair of servo-mounted probes, ‘measuring’ the surface conductivity and generating some sound and visuals.
It appears to have only one d... | 2 | 1 | [
{
"comment_id": "6641319",
"author": "CRJEEA",
"timestamp": "2023-05-10T09:42:14",
"content": "Ot would be interesting to couple this with a high resolution 3D scanner, a leap motion maybe.Then have a robot arm position the probes, overlaying the measurements onto a map of the surface.Not only allow... | 1,760,372,305.5993 | ||
https://hackaday.com/2023/05/09/hackaday-prize-2023-bolt-bot-micro-servo-droids/ | Hackaday Prize 2023: Bolt Bot Micro Servo Droids | Dave Rowntree | [
"Robots Hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"3d printed",
"arduino",
"kit",
"nRF24L01+",
"robotics",
"servo motor",
"wireless"
] | This Hackaday prize entry from [saul] is the beginning of a
reconfigurable kit of 3D printed parts and servo motors for robotics learning
. With just access to a printer, a few cheap-as-chips servo motors, an Arduino, and some nuts and bolts, you could be hacking together robot walkers within a few hours of starting!
B... | 1 | 1 | [
{
"comment_id": "6642765",
"author": "Saul",
"timestamp": "2023-05-14T23:48:34",
"content": "“with all the mechanics and wiring out there in the breeze”, these are only prototypes -_-Funny the arm layout is almost the same, just missing the rotation on the end.I want to read up on this a bit, but I ... | 1,760,372,305.83569 | ||
https://hackaday.com/2023/05/09/retro-gadgets-i-swear-officer-i-was-listening-to-45/ | Retro Gadgets: I Swear Officer, I Was Listening To 45 | Al Williams | [
"Featured",
"History",
"Interest",
"Slider"
] | [
"car audio",
"record player"
] | Audio in cars has a long history. Car radios in the 1920s were bulky and expensive. In the 1930s, there was the Motorola radio. They were still expensive — a $540 car with a $130 radio — but much more compact and usable. There were also 8-tracks, cassettes, CDs, and lately digital audio on storage media or streamed ov... | 15 | 12 | [
{
"comment_id": "6641178",
"author": "Ostracus",
"timestamp": "2023-05-09T19:55:29",
"content": "I can’t help but think an audio version of the CED might have worked better.https://en.wikipedia.org/wiki/Capacitance_Electronic_Disc",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,372,305.556707 | ||
https://hackaday.com/2023/05/09/moisture-duck-gives-you-a-green-thumb/ | Moisture Duck Gives You A Green Thumb | Al Williams | [
"ATtiny Hacks",
"home hacks"
] | [
"moisture sensor",
"soil sensor"
] | Around the Hackaday bunker, any plant other than a cactus has a real chance of expiring due to thirst. Perhaps we should build some of [MakersFunDuck]’s
Moisture Duck boards
. As you can see in the video below, the simple PCB with an ATtiny13A tells you when it is time to water the plants. The video also covers several... | 19 | 6 | [
{
"comment_id": "6641111",
"author": "Artenz",
"timestamp": "2023-05-09T16:12:41",
"content": "To minimize corrosion, use an AC signal instead of DC. Do a quick measurement (as fast as you can) and then do the same measurement with swapped pins.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,372,306.199346 | ||
https://hackaday.com/2023/05/09/share-your-projects-making-helpful-pcbs/ | Share Your Projects: Making Helpful PCBs | Arya Voronova | [
"Hackaday Columns",
"how-to",
"Slider"
] | [
"artistic pcb",
"design",
"pcb",
"tips"
] | When it comes to things that hackers build, PCBs are a sizeable portion of our creative output. It’s no wonder – PCB design is a powerful way to participate in the hardware world, making your ideas all that more tangible with help of a friendly PCB fab. It’s often even more lovely when the PCB has been designed for you... | 38 | 15 | [
{
"comment_id": "6641087",
"author": "Pat",
"timestamp": "2023-05-09T14:16:16",
"content": "If you don’t want to delete all refdes markings, just delete decoupling cap refdes markings and replace them with a single letter/symbol that designates what they are, and document that somewhere on the board... | 1,760,372,306.385303 | ||
https://hackaday.com/2023/05/09/minimal-usb-device-connects-with-just-a-couple-of-resistors/ | Minimal USB Device Connects With Just A Couple Of Resistors | Dan Maloney | [
"computer hacks"
] | [
"3V3",
"D+",
"Device Manager",
"dmesg",
"pull-up",
"usb"
] | If you’re like most of us, your basic approach to building something boils down to: “What’s the minimum amount I need to do to get this to work?” It’s not a bad strategy in general, but the minimal build is rarely enough to meet all the requirements, as this
extremely minimal but functional USB device illustrates
.
Fun... | 10 | 6 | [
{
"comment_id": "6641070",
"author": "zoobab",
"timestamp": "2023-05-09T13:19:41",
"content": "Add to that a USB connector with 4 rails of stripboard and over soldering?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6641080",
"author": "jpa",
"timesta... | 1,760,372,306.246012 | ||
https://hackaday.com/2023/05/09/giving-a-tinge-of-color-to-the-mars-map-courtesy-of-the-uaes-hope-orbiter/ | Giving A Tinge Of Color To The Mars Map Courtesy Of The UAE’s Hope Orbiter | Maya Posch | [
"Space"
] | [
"Emirates Mars Mission",
"Hope orbiter",
"mars",
"mars atlas"
] | Since the United Arab Emirates’ Hope (“Al-Amal”) orbiter made it safely into orbit around Mars on February 9, 2021, it’s been busy using its onboard instruments to measure everything it could about not only the planet’s atmosphere but also its surface and how both change seasonally. The first months of results of these... | 0 | 0 | [] | 1,760,372,306.418455 | ||
https://hackaday.com/2023/05/08/arctos-robotics-build-a-robot-arm-out-of-3d-printer-spares/ | Arctos Robotics: Build A Robot Arm Out Of 3D Printer Spares? | Dave Rowntree | [
"Robots Hacks"
] | [
"3d printed",
"Arduino Mega 2560",
"CNC shield",
"cycloidal drive",
"grbl",
"NEMA17",
"nema23",
"PLA",
"robot arm",
"ros",
"Simulink"
] | ARCTOS is a 6-DOF robot arm
based upon 3D printed mechanics running a modified version of GRBL firmware. Let’s get this straight now, the firmware is open source, but the hardware plans are a paid download, but for less than forty euros, we reckon the investment would be well worth it, judging from the quality of the b... | 11 | 4 | [
{
"comment_id": "6640997",
"author": "Miles",
"timestamp": "2023-05-09T06:08:40",
"content": "Sorry to say M3 and M3 threaded rod aren’t commonly stocked across the pond, but of course can be ordered. Too bad if there isnt an option to use an alternative size like 8-32 or 10-32.Looks neat, want to ... | 1,760,372,306.305193 | ||
https://hackaday.com/2023/05/08/3d-printed-aerospike-was-designed-by-ai/ | 3D Printed Aerospike Was Designed By AI | Navarre Bartz | [
"3d Printer hacks",
"Artificial Intelligence",
"Space"
] | [
"3d printed rocket engine",
"aerospike",
"generative design",
"genetic algorithm",
"hybrid rocket",
"rocket",
"rocketry"
] | We’re still in the early days of generatively-designed objects, but when combined with the capabilities of 3D printing, we’re already seeing some interesting results. One example is this new
copper aerospike engine
. [via
Fabbaloo
]
A collaboration between startups Hyperganic (generative AI CAD) and
AMCM
(additive manu... | 36 | 10 | [
{
"comment_id": "6640955",
"author": "RobHeffo",
"timestamp": "2023-05-09T02:15:37",
"content": "The article was from 2022. I would like to know if it worked or not? Did they fire it?? What happened!! It seems to have vanished after the press release.",
"parent_id": null,
"depth": 1,
"re... | 1,760,372,306.833166 | ||
https://hackaday.com/2023/05/08/a-tale-of-two-pulse-modulators/ | A Tale Of Two Pulse Modulators | Al Williams | [
"Teardown",
"Tool Hacks"
] | [
"Coax",
"pulse modulator",
"test equipment"
] | In the realm of test equipment, there are a number of items that you don’t know you need until you need one. That’s probably the case with the HP11720A pulse modulator. [Tom]
acquired two of these
even though, by his own admission, he had “no need for these things.” We’d like to say we don’t get that, but — alas — we d... | 7 | 4 | [
{
"comment_id": "6640898",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-05-08T23:14:22",
"content": "I’m unfamiliar with the term “Pulse Modulator”Though I do own an HP Pulse Generator.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "66... | 1,760,372,306.763864 | ||
https://hackaday.com/2023/05/08/converting-a-bw-exposer-head-for-colour-analog-photo-printing/ | Converting A B&W Enlarger For Colour Analog Photo Printing | Dave Rowntree | [
"LED Hacks"
] | [
"analog photography",
"arduino nano",
"COB LED",
"MCP23016",
"PCA9685",
"pwm",
"RA4",
"RGB LED"
] | [Koraks tinkers] was gifted a gargantuan photographic enlarger, a Durst Laborator 138 s, which is a unit designed specifically for black and white usage only. This was not good enough for [Koraks] so
down the rabbit hole of conversion to colour we go
! The moral of the story is this: if you can’t find it, build it. The... | 16 | 7 | [
{
"comment_id": "6640824",
"author": "sirgio",
"timestamp": "2023-05-08T21:10:02",
"content": "Similar setup is used by football hooligans for those impressive cardboard displays.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6640859",
"author": "Llaves",... | 1,760,372,306.89 | ||
https://hackaday.com/2023/05/08/vcf-east-2023-alan-wolke-on-his-passion-for-tech/ | VCF East 2023: Alan Wolke On His Passion For Tech | Tom Nardi | [
"Interviews",
"Retrocomputing"
] | [
"ham radio",
"VCF East 2023",
"Vintage Computer Festival East",
"vintage computing"
] | If you’re one of the more than 180,000 subscribers to
[Alan Wolke]’s YouTube channel W2AEW
, you’ll know he’s a lover of old test gear and ham radio hardware. You may have followed one of his tutorials, or referenced his work while repairing or upgrading your own equipment. But when we got a chance to
talk to him one-o... | 3 | 2 | [
{
"comment_id": "6640757",
"author": "Bil Herd",
"timestamp": "2023-05-08T18:48:19",
"content": "Woot! W2AEW!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6641389",
"author": "Elliot Williams",
"timestamp": "2023-05-10T15:14:43",
"c... | 1,760,372,306.719893 | ||
https://hackaday.com/2023/05/08/a-literate-assembly-language/ | A Literate Assembly Language | Al Williams | [
"Hackaday Columns",
"Rants",
"Slider",
"Software Development",
"Software Hacks"
] | [
"assembly language"
] | A recent edition of [Babbage’s]
The Chip Letter discusses the obscurity of assembly language
. He points out, and I think correctly, that assembly language is more often read than written, yet nearly all of them are hampered by obscurity left over from the days when punched cards had 80 columns and a six-letter symbol ... | 80 | 41 | [
{
"comment_id": "6640692",
"author": "Jan",
"timestamp": "2023-05-08T17:32:35",
"content": "Interesting idea, but I stick to the original form, less typing. Although in practice programming is mostly about thinking what to type instead of typing. Unless it’s a movie, then people are able to program ... | 1,760,372,307.004185 | ||
https://hackaday.com/2023/05/08/hackaday-prize-2023-the-realities-of-the-homework-machine/ | Hackaday Prize 2023: The Realities Of The Homework Machine | Matthew Carlson | [
"3d Printer hacks"
] | [
"handwriting",
"homework"
] | For those outside the world of education, it can be hard to judge the impact that ChatGPT has had on homework assignments. If you didn’t know, the first challenge of the 2023 Hackaday Prize is focused on improving education. [Devadath P R] decided that the best way to help teachers and teaching culture was to confront ... | 83 | 11 | [
{
"comment_id": "6640648",
"author": "David Beck",
"timestamp": "2023-05-08T16:09:19",
"content": "The following statements in your article are an example of a misguided project that does harm to the student and his education. I fail to see how this helps a teacher. Rather, this project lets a stude... | 1,760,372,307.118058 | ||
https://hackaday.com/2023/05/08/ask-hackaday-why-do-self-driving-cars-keep-causing-traffic-jams/ | Ask Hackaday: Why Do Self Driving Cars Keep Causing Traffic Jams? | Lewin Day | [
"car hacks",
"Current Events",
"Featured",
"Original Art",
"Slider",
"Transportation Hacks"
] | [
"cars",
"cruise",
"san francisco",
"self-driving cars",
"Waymo"
] | Despite what some people might tell you, self-driving cars aren’t really on the market yet. Instead, there’s a small handful of startups and big tech companies that are rapidly developing prototypes of this technology. These vehicles are furiously testing in various cities around the world.
In fact, depending on where ... | 133 | 27 | [
{
"comment_id": "6640597",
"author": "Art Mezins",
"timestamp": "2023-05-08T14:11:06",
"content": "It’s a perfect storm of engineering, or rather the lack of cohesion of their convergence into a simpatico of various subdisciplines aimed at robust implementation. Literally, “the devil’s in the detail... | 1,760,372,307.606795 | ||
https://hackaday.com/2023/05/08/the-bicycle-and-more-explained/ | The Bicycle (and More) Explained | Al Williams | [
"Science"
] | [
"animations",
"bicycle",
"physics"
] | They say a picture is worth a thousand words, but an animation, then, must be worth a million. Make that animation interactive, and… well, we don’t know how many words it is worth, but it is plenty! That’s the idea behind [Bartosz Ciechanowski’s] blog where he uses clever interactive animations to explain the surprisin... | 25 | 5 | [
{
"comment_id": "6640595",
"author": "Epuelka",
"timestamp": "2023-05-08T14:06:58",
"content": "I’m glad I don’t have Java enabled in my browser. Kaspersky warned of malicious code.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6640613",
"author": "... | 1,760,372,307.271051 | ||
https://hackaday.com/2023/05/08/can-you-use-a-post-card-with-a-modern-bios/ | Can You Use A POST Card With A Modern BIOS? | Dave Rowntree | [
"computer hacks"
] | [
"bios",
"LPC",
"pc",
"post"
] | [Alessandro Carminati] spends the day hacking Linux kernels, and to such an end needed a decent compilation machine to chew through the builds. One day, this machine refused to boot leaving some head-scratching to do, and remembering the motherboard diagnostics procedures of old,
realized that wasn’t going to work for ... | 36 | 8 | [
{
"comment_id": "6640530",
"author": "Krzysztof",
"timestamp": "2023-05-08T11:53:38",
"content": "Computers are still a set of gates talting to other sets of gates through wires using mostly ascii codes. “In the beginning was the command line” by Neal Stephenson – a must read for any hacker.",
"... | 1,760,372,307.353608 | ||
https://hackaday.com/2023/05/07/soviet-era-computer-is-both-a-mystery-and-a-disaster/ | Soviet-Era Computer Is Both A Mystery And A Disaster | Bryan Cockfield | [
"Retrocomputing"
] | [
"cm1910",
"computer",
"ddr",
"east germany",
"retrocomputing",
"robotron",
"soviet",
"teardown"
] | There are plenty of bizarre computers around from the 70s through the 90s before the world somewhat standardized around various duopolies of hardware vendors and operating systems. Commodore, Atari, and even Apple had some bizarre machines from this era but for our money, the most unusual systems come out of the Easter... | 56 | 22 | [
{
"comment_id": "6639855",
"author": "YGDES",
"timestamp": "2023-05-07T11:30:32",
"content": "OK But does it run Wolfenstein 3D ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6639863",
"author": "The Commenter Formerly Known As Ren",
"times... | 1,760,372,307.440907 | ||
https://hackaday.com/2023/05/06/the-forgotten-rescue-of-the-salyut-7-space-station/ | The Forgotten Rescue Of The Salyut 7 Space Station | Maya Posch | [
"Space"
] | [
"salyut",
"space station"
] | With only two space stations in orbit around Earth today in the form of the International Space Station and the Chinese Tiangong (‘Sky Palace’) station, it’s easy to forget how many space stations were launched in the previous century. And the Soviet Union launched by far the most, as part of the Salyut (Russian for ‘s... | 17 | 6 | [
{
"comment_id": "6639831",
"author": "Dude",
"timestamp": "2023-05-07T08:17:13",
"content": "The station itself was known as Almaz or “diamond” and they were kitted for various purposes for the OPS and DOS missions.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id"... | 1,760,372,307.658411 | ||
https://hackaday.com/2023/05/06/op-amp-challenge-a-low-noise-amplifier-for-those-truly-low-noise-measurements/ | Op-Amp Challenge: A Low Noise Amplifier For Those Truly Low Noise Measurements | Jenny List | [
"contests",
"hardware"
] | [
"instrumentation amp",
"low noise",
"Op Amp Challenge",
"op-amp"
] | When something is described as “Low Noise”, it is by the nature of the language a relative phrase. The higest quality magnetic tape is low noise compared to its cheaper sibling for example, but still has noise many would consider unacceptable. In instrumentation however, “Low Noise” has to really mean just that, with a... | 8 | 4 | [
{
"comment_id": "6639793",
"author": "Observer",
"timestamp": "2023-05-07T03:39:59",
"content": "The parallel op amp idea caught my attention too, and when I saw it, it triggered an interesting recollection.I recalled something I read, perhaps in to 80s, about efforts to transcribe and preserve Edis... | 1,760,372,307.745112 | ||
https://hackaday.com/2023/05/06/laser-triangulation-makes-3d-printer-pressure-advance-tuning-easier/ | Laser Triangulation Makes 3D Printer Pressure Advance Tuning Easier | Dan Maloney | [
"3d Printer hacks"
] | [
"artifact",
"laser",
"line scanner",
"nozzle camera",
"opencv",
"pressure advance"
] | On its face, 3D printing is pretty simple — it’s basically just something to melt plastic while being accurately positioned in three dimensions. But the devil is in the details, and there seems to be an endless number of parameters and considerations that stand between the simplicity of the concept and the reality of g... | 8 | 4 | [
{
"comment_id": "6639741",
"author": "Leandro",
"timestamp": "2023-05-06T23:53:38",
"content": "Where is the printed part that was printed using this method to compare with? Otherwise it is just another thing that doesn’t add much.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,307.704562 | ||
https://hackaday.com/2023/05/06/tiny-3d-printed-gaming-pc-contains-real-retro-hardware/ | Tiny 3D Printed Gaming PC Contains Real Retro Hardware | Robin Kearey | [
"Retrocomputing"
] | [
"3D printed case",
"486",
"486DX4",
"computer tower",
"industrial pc",
"retro pc"
] | Emulators are easy and convenient, but for some retrocomputing enthusiasts nothing comes close to running classic software on actual era-appropriate hardware. This can become a problem, though, for those into vintage PC gaming: old PCs and their monitors are notoriously large and heavy, meaning that even a modest colle... | 13 | 5 | [
{
"comment_id": "6639683",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-05-06T21:02:27",
"content": "The Title Photo needs a banana for scale.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6639714",
"author": "Hirudinea",
"times... | 1,760,372,307.851571 | ||
https://hackaday.com/2023/05/06/pc-classics-right-in-your-browser-with-emuos/ | PC Classics, Right In Your Browser With EmuOS | Donald Papp | [
"Retrocomputing",
"Software Hacks"
] | [
"abandonware",
"classic",
"dos",
"emulation",
"EmuOS",
"pc gaming",
"vintage",
"windows"
] | [Emupedia]’s work to preserve computer history by way of making classic and abandoned games and software as accessible as possible is being done in a handy way: right in your browser with
EmuOS
.
A few moments of BIOS startup kicks off EmuOS right in a browser window.
Doing things this way has powerful “Just Works” ene... | 12 | 6 | [
{
"comment_id": "6639634",
"author": "RW ver 0.0.3",
"timestamp": "2023-05-06T17:30:31",
"content": "What differentiates this from projects likehttps://www.pcjs.org/or the in browser emulation at archive dot org ?Or why would I want to use this rather than RetroPI/RetroOrangePi etc or one of those m... | 1,760,372,307.800155 | ||
https://hackaday.com/2023/05/06/the-new-hotness/ | The New Hotness | Elliot Williams | [
"Hackaday Columns",
"Microcontrollers",
"Parts",
"Rants",
"Slider"
] | [
"blue pill",
"CH32V003",
"chip shortage",
"microcontroller",
"newsletter",
"stm32"
] | If there’s one good thing to be said about the chip shortage of 2020-2023 (and counting!) it’s that a number of us were forced out of our ruts, and pushed to explore parts that we never would have otherwise. Or maybe it’s just me.
Back in the old times, I used to be a die-hard Atmel AVR fan for small projects, and an S... | 35 | 16 | [
{
"comment_id": "6639591",
"author": "Harry",
"timestamp": "2023-05-06T14:48:05",
"content": "Unless you’re doing something at a large scale the price difference between an “ultra-cheap” chip vs something slightly pricier you already know how to use isn’t very important. Unless you’re getting loads ... | 1,760,372,308.276672 | ||
https://hackaday.com/2023/05/07/usb-meets-core-memory-in-a-vintage-scope/ | USB Meets Core Memory In A Vintage ‘Scope | Jenny List | [
"classic hacks"
] | [
"tektronix",
"test equipment",
"usb"
] | It’s normal today for even relatively modest instruments to have some form of computer control capability over Ethernet or USB. But five decades ago this was by no means a given, and when Tektronix shipped their P7001 digitiser module for their high-end oscilloscopes in 1971, they were initially designed to interface w... | 5 | 4 | [
{
"comment_id": "6640345",
"author": "Marvin",
"timestamp": "2023-05-08T05:38:57",
"content": "Wow, this is polished!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6640352",
"author": "Manfred",
"timestamp": "2023-05-08T05:49:21",
"content": "Work... | 1,760,372,307.982532 | ||
https://hackaday.com/2023/05/07/diy-metal-detector-2/ | DIY Metal Detector | Al Williams | [
"Arduino Hacks",
"ARM"
] | [
"metal detector"
] | If you want to get rich by hunting with a metal detector, you might want to consider how much you invested in the hardware to start with. Finding a tin can with a $200 detector might not make economic sense. But building a metal detector yourself doesn’t have to be hard, as [Mirko] shows in a recent post. His
STM32-bas... | 19 | 6 | [
{
"comment_id": "6640196",
"author": "Karsten Johansson",
"timestamp": "2023-05-08T02:40:40",
"content": "Can someone explain how some of the more advanced metal detectors seemingly differentiate between junk (pull tabs, for example) and specific worthwhile metal objects?",
"parent_id": null,
... | 1,760,372,308.107691 | ||
https://hackaday.com/2023/05/07/hackaday-links-may-7-2023/ | Hackaday Links: May 7, 2023 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"ai",
"Boca Chica",
"Broken Arrow",
"CCD",
"concert",
"fMRI",
"fuse puller",
"hackaday links",
"laser",
"machine learning",
"Minuteman",
"robot fail",
"skynet",
"smartphone",
"SpaceX",
"starship"
] | More fallout for SpaceX this week after their Starship launch attempt, but of
the legal kind
rather than concrete and rebar. A handful of environmental groups filed the suit, alleging that the launch generated “intense heat, noise, and light that adversely affects surrounding habitat areas and communities, which includ... | 39 | 6 | [
{
"comment_id": "6640029",
"author": "Hirudinea",
"timestamp": "2023-05-07T23:35:56",
"content": "Holy crap, I expected concerts to make you deaf but not blind as well!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6640392",
"author": "pelrun",
... | 1,760,372,308.055965 | ||
https://hackaday.com/2023/05/07/op-amp-challenge-compare-op-amps-by-listening-to-them/ | Op-Amp Challenge: Compare Op-Amps, By Listening To Them | Jenny List | [
"digital audio hacks"
] | [
"audio",
"headphone amplifier",
"op-amp"
] | In the world of audiophilia there are arguments that rage over the relative merits of particular components. Sometimes this can reach silly levels as in the high-end ALPS pot we once saw chosen as a volume control whose only task was to be a DC voltage divider feeding a pin on a DSP, but there are moments where such co... | 31 | 9 | [
{
"comment_id": "6639980",
"author": "AudioFine",
"timestamp": "2023-05-07T20:46:09",
"content": "But the op-amp sockets aren’t gold plated! And what about that questionable power supply? And the different length traces!I’ve heard some ridiculous audiophiles in my time.",
"parent_id": null,
... | 1,760,372,308.341927 | ||
https://hackaday.com/2023/05/07/a-7-ghz-signal-analyser-teardown-and-a-trivial-repair/ | A 7 GHz Signal Analyser Teardown And A Trivial Repair | Dave Rowntree | [
"Teardown",
"Tool Hacks"
] | [
"agilent",
"cross-correlation",
"E5052",
"phase noise",
"power divider",
"teardown"
] | [Shahriar] of
The Signal Path
is
back with another fascinating video teardown and analysis for your viewing pleasure
. (Embedded below.) This time the target is an Agilent E5052A 7 GHz signal Source/Analyser which is an expensive piece of kit not many of us are fortunate enough to have on the bench. This particular uni... | 15 | 6 | [
{
"comment_id": "6639931",
"author": "Antron Argaiv",
"timestamp": "2023-05-07T17:21:25",
"content": "a short “segue”, I assume, since there’s no other reference to Segways for little people?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6639952",
"... | 1,760,372,308.404199 | ||
https://hackaday.com/2023/05/07/launching-paper-planes-from-way-waaaaaay-up/ | Launching Paper Planes From Way, Waaaaaay Up | Donald Papp | [
"Space"
] | [
"atmosphere",
"iss",
"paper plane",
"space",
"stratosphere",
"weather balloon"
] | Every now and again we stumble across something a bit unexpected, and today that’s the fact that there have been
quite a few efforts at launching paper planes from as close to space as possible
. The current record for the highest paper plane launch is a whopping altitude of 35,043 meters.
That altitude is considerably... | 13 | 7 | [
{
"comment_id": "6639892",
"author": "Rex",
"timestamp": "2023-05-07T14:29:23",
"content": "So litter from the stratosphere. I have the same problem with helium balloons.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6640639",
"author": "Mark Shek",... | 1,760,372,308.495184 | ||
https://hackaday.com/2023/05/07/an-rpi-powered-multi-dx7-tx816-style-synth/ | An RPi-Powered Multi-DX7/TX816 Style Synth | Dave Rowntree | [
"Musical Hacks"
] | [
"fm synthesis",
"hardware orchestra",
"lo-fi",
"midi",
"modular synth",
"PCM5102",
"Yamaha TX816"
] | [Kevin] over at Simple DIY ElectroMusic Projects has released a
complete DIY modular design
for simulating the classic 80s
Yamaha TX816 DX/FM modular digital synthesizer
. This beast of a synth was used by the cool bands of the 80s as well as TV studios, and ownership of the original machine is an expensive investment.... | 16 | 6 | [
{
"comment_id": "6639864",
"author": "mseg",
"timestamp": "2023-05-07T12:23:22",
"content": "In high shcool we used to have similiar setup for controlling our little weed operation, temperature, water etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6639899... | 1,760,372,308.615071 | ||
https://hackaday.com/2023/05/05/linux-fu-supercharge-bash-history/ | Linux Fu: Supercharge Bash History | Al Williams | [
"Featured",
"Linux Hacks",
"Slider"
] | [
"bash",
"linux"
] | Having a history of shell commands is a great idea. It is, of course, enormously handy when you have to run something repetitively or you make a simple mistake that needs correction. However, as I’ve mentioned in the past, bash history isn’t without its problems. For one thing, by default, you don’t get history in one ... | 18 | 14 | [
{
"comment_id": "6639388",
"author": "The Mighty Buzzard",
"timestamp": "2023-05-05T19:11:06",
"content": "If you don’t want your cli history on the Internet, you can always put this at the end of your $HOME/.bashrc:export PROMPT_COMMAND=”history -a; history -c; history -r; ${PROMPT_COMMAND};”Keep i... | 1,760,372,308.556965 | ||
https://hackaday.com/2023/05/05/hackaday-podcast-217-the-unintentional-space-and-3d-printing-episode/ | Hackaday Podcast 217: The Unintentional Space And 3D Printing Episode | Tom Nardi | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday Editors Elliot Williams and Tom Nardi definitely didn’t
plan
on devoting most of this episode to 3D printing and space stories, but let’s be honest, it was bound to happen sooner or later. After an update on the Hackaday Prize, the discussion moves on to a pair of troubled spacecraft and the challenges of expl... | 0 | 0 | [] | 1,760,372,308.446127 | ||
https://hackaday.com/2023/05/05/a-history-of-nasa-supercomputers-among-others/ | A History Of NASA Supercomputers, Among Others | Dave Rowntree | [
"computer hacks",
"History"
] | [
"CFD",
"cray",
"history",
"nasa",
"supercomputer"
] | The History Guy
on YouTube has posted an interesting video on
the history of the supercomputer
, with a specific focus on their use by NASA for the implementation of
computational fluid dynamics
(CFD) models of aeronautical assemblies.
The aero designers of the day were quickly finding out the limitations of the wind t... | 8 | 3 | [
{
"comment_id": "6639347",
"author": "SteveS",
"timestamp": "2023-05-05T16:39:40",
"content": "If you ever get a chance to examine an old early-model Cray up close you should do it.They’re an amazing example of “form follows function”The racks of simple cards are pie-shaped, with the processing elem... | 1,760,372,308.662703 | ||
https://hackaday.com/2023/05/05/this-week-in-security-oracle-opera-passkeys-and-airtag-rfc/ | This Week In Security: Oracle Opera, Passkeys, And AirTag RFC | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"AirTag",
"Log4j",
"Oracle",
"This Week in Security"
] | There’s a problem with Opera. No, not that kind of opera. The Oracle kind. Oracle OPERA is a Property Management Solution (PMS) that is in use in a bunch of big-name hotels around the world. The PMS is the system that handles reservations and check-ins, talks to the phone system to put room extensions in the proper sta... | 10 | 5 | [
{
"comment_id": "6639349",
"author": "Ostracus",
"timestamp": "2023-05-05T16:53:52",
"content": "Yubikeys are ready.https://www.yubico.com/blog/a-yubico-faq-about-passkeys/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6639362",
"author": "Tomi",
"tim... | 1,760,372,308.718973 | ||
https://hackaday.com/2023/05/05/linux-cell-phone-build-ourphone/ | Linux Cell Phone? Build OURPhone | Al Williams | [
"Phone Hacks",
"Raspberry Pi"
] | [
"cell phone"
] | [Evan] couldn’t find a phone he liked, so he decided to
build his own
. There are advantages and disadvantages, as you might expect. On the plus side, you have the ultimate control. On the negative side, it doesn’t quite have the curb appeal — at least to the average user — of a sleek new cell phone from a major manufa... | 30 | 14 | [
{
"comment_id": "6639282",
"author": "Upgrade pi-top [3]",
"timestamp": "2023-05-05T11:56:57",
"content": "Like a home brew version of the Clockwork Pi uConsole",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6639292",
"author": "socksbot",
"t... | 1,760,372,308.782906 | ||
https://hackaday.com/2023/05/05/cnc-feeds-and-speeds-explained-as-a-first-timer/ | CNC Feeds And Speeds, Explained As A First-Timer | Donald Papp | [
"cnc hacks"
] | [
"cnc",
"cutting",
"feeds",
"novice",
"speeds"
] | If you’ve ever looked into CNC cutting tools, you’ve probably heard the term “feeds and speeds”. It refers to choosing the speed at which to spin the cutting tool, and how fast to plow it into the material being cut. They’re important to get right, and some of the reasons aren’t obvious. This led
[Callan Bryant] to sha... | 35 | 8 | [
{
"comment_id": "6639246",
"author": "C",
"timestamp": "2023-05-05T08:23:15",
"content": "I wondered if you could simply cool the tool by adding a vapor chamber inside the tool. I just read an old article about it applied to a drill bit, so I guess it’s possible, but I don’t know if they are availab... | 1,760,372,308.977391 | ||
https://hackaday.com/2023/05/04/nvidia-jetson-powers-real-time-iron-man-hud/ | NVIDIA Jetson Powers Real-Time Iron Man HUD | Tom Nardi | [
"Video Hacks",
"Wearable Hacks"
] | [
"augmented reality",
"heads-up",
"iron man",
"iron man helmet",
"Nvidia Jetson"
] | If you could recreate any of the capabilities of Tony Stark’s Iron Man suit in real life, it would probably be the ability to fly, the super strength, or maybe even the palm-mounted lasers that can cut through whatever obstacle is in your path. But let’s be real, all that stuff is way too hard to try and pull off. Plus... | 15 | 5 | [
{
"comment_id": "6639219",
"author": "Upgrade pi-top [3]",
"timestamp": "2023-05-05T06:01:05",
"content": "“or maybe even the palm-mounted lasers that can cut through whatever obstacle is in your path. But let’s be real, all that stuff is way too hard to try and pull off” – Hacksmith gave this a pre... | 1,760,372,309.034355 | ||
https://hackaday.com/2023/05/04/hacking-hue-lightbulbs/ | Hacking Hue Lightbulbs | Al Williams | [
"LED Hacks",
"Teardown"
] | [
"hue",
"led",
"Phillips Hue"
] | What do you do with a Hue smart lightbulb? Well, if you are [Chris Greening], you
take it apart and get hacking
. If you ever wondered what’s inside, the teardown is pretty good, and you can also watch the video below. The potting compound, however, makes a mess.
Once you get the potting undone, there are three PCBs: a... | 13 | 6 | [
{
"comment_id": "6639124",
"author": "Menga",
"timestamp": "2023-05-05T02:32:57",
"content": "Very clever way of driving 5 channels of LEDs with a single constant current power supply. I’ve always thought each channel was driven by simply a pwm signal with a feedback or something.",
"parent_id":... | 1,760,372,309.08039 | ||
https://hackaday.com/2023/05/04/easters-over-but-you-can-still-dye-keycaps/ | Easter’s Over, But You Can Still Dye Keycaps | Kristina Panos | [
"chemistry hacks",
"Misc Hacks"
] | [
"key caps",
"keycaps",
"PBT",
"PBT keycaps",
"rit dye"
] | While it’s true that keycap colorways abound these days, one can’t always find exactly what one is looking for. And once found, the set is often either prohibitively expensive, or it doesn’t come in the desired layout, or both.
So, why not color your own keycaps?
That’s exactly what [amphiboi] did, while standing on th... | 11 | 6 | [
{
"comment_id": "6639087",
"author": "Chris Maple",
"timestamp": "2023-05-04T23:57:44",
"content": "I like this idea. I wonder how deep the dyes penetrate, and how well the color of the keys stands up to wear.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,372,309.900719 | ||
https://hackaday.com/2023/05/04/chatgpt-makes-a-3d-model-the-secret-ingredient-much-patience/ | ChatGPT Makes A 3D Model: The Secret Ingredient? Much Patience | Donald Papp | [
"Artificial Intelligence",
"Software Hacks"
] | [
"3d modeling",
"ai",
"ChatGPT",
"freecad",
"LLM",
"python",
"scripting"
] | ChatGPT is an AI large language model (LLM) which specializes in conversation. While using it, [Gil Meiri] discovered that one way to create models in FreeCAD is with Python scripting, and
ChatGPT could be encouraged to create a 3D model of a plane in FreeCAD
by expressing the model as a script. The result is just a ba... | 44 | 16 | [
{
"comment_id": "6639027",
"author": "TG",
"timestamp": "2023-05-04T20:41:28",
"content": "Awkward first steps with this sort of thing tend to lead to fairly powerful tools sooner than you’d think",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6639030",
"a... | 1,760,372,309.225986 | ||
https://hackaday.com/2023/05/04/op-amp-challenge-get-more-from-a-single-wire-with-an-analogue-adder/ | Op-Amp Challenge: Get More From A Single Wire With An Analogue Adder | Jenny List | [
"contests",
"hardware"
] | [
"analog",
"Op Amp Challenge",
"op-amp",
"summing amplifier"
] | It’s been a running battle in some quarters for years, whether analog sensor processing is better than digital. Proponents of digital are sometimes driven by lack of familiarity with analog circuitry, while analog die-hards point to delays and software crashes in microcontrollers. We’d probably toe the line that a mixt... | 10 | 3 | [
{
"comment_id": "6638987",
"author": "spiritplumber@gmail.com",
"timestamp": "2023-05-04T18:37:49",
"content": "My little entries for the op-amp challenge, if anyone cares :)https://www.robots-everywhere.com/re_wiki/pub/web/Cookbook.2pin2motor.htmlHow to use two bidirectional pins to control two mot... | 1,760,372,309.127438 | ||
https://hackaday.com/2023/05/04/we-already-live-in-a-hydrogen-economy-steel-production-generator-cooling-and-welding-gas/ | We Already Live In A Hydrogen Economy: Steel Production, Generator Cooling, And Welding Gas | Maya Posch | [
"Hackaday Columns",
"Science",
"Slider"
] | [] | Although generally
hydrogen
is only mentioned within the context of transportation and energy storage, by far the most useful applications are found in industrial applications, including for the chemical industry, the manufacturing of steel, as well as that of methanol and fertilizer. This is illustrated by how today m... | 61 | 7 | [
{
"comment_id": "6638971",
"author": "fallous",
"timestamp": "2023-05-04T18:03:02",
"content": "How exactly are they avoiding the problems of hydrogen embrittlement in welding gases using a hydrogen mix and intended for steel?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,309.484163 |
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