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https://hackaday.com/2024/09/16/well-take-diy-diamond-making-for-200000/
We’ll Take DIY Diamond Making For $200,000
Kristina Panos
[ "chemistry hacks", "News" ]
[ "chemical vapor deposition", "CVD", "diamonds", "high-pressure high-temperature", "HPHT", "lab-grown diamond" ]
https://hackaday.com/wp-…ds-800.jpg?w=800
They say you can buy anything on the Internet if you know the right places to go, and apparently if you’re in the mood to make diamonds, then Alibaba is the spot . You even have your choice of high-pressure, high-temperature ( HPHT ) machine for $200,000, or a chemical vapor deposition ( CVD ) version, which costs more...
12
3
[ { "comment_id": "8040743", "author": "asdf", "timestamp": "2024-09-17T06:09:31", "content": "“You could do that but why, why would you do that.” – Benjamin Franklin", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8040851", "author": "purplepeopleated"...
1,760,371,789.586626
https://hackaday.com/2024/09/16/the-universe-as-we-know-it-may-end-sooner-than-expected/
The Universe As We Know It May End Sooner Than Expected
Maya Posch
[ "Science" ]
[ "higgs field" ]
https://hackaday.com/wp-…-event.png?w=800
The ‘Sombrero Potential’ as seen with the Higgs mechanism. One of the exciting aspects of some fields of physics is that they involve calculating the expected time until the Universe ends or experiences fundamental shifts that would render most if not all of the ‘laws of physics’ invalid. Within the Standard Model (SM)...
44
10
[ { "comment_id": "8040725", "author": "Quad", "timestamp": "2024-09-17T02:11:05", "content": "https://arxiv.org/html/2409.06737v1Another recent paper says earth may no longer be habitable in less than 1000 years", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "...
1,760,371,789.94159
https://hackaday.com/2024/09/16/raspberry-pi-becomes-secure-vpn-router/
Raspberry Pi Becomes Secure VPN Router
Bryan Cockfield
[ "Network Hacks" ]
[ "openwrt", "raspberry pi", "router", "security", "smartphone", "vpn", "Wireguard" ]
https://hackaday.com/wp-…i-main.png?w=800
OpenWRT is a powerful piece of open-source software that can turn plenty of computers into highly configurable and capable routers. That amount of versatility comes at a cost, though; OpenWRT can be difficult to configure outside of the most generic use cases. [Paul] generally agrees with this sentiment and his latest ...
20
8
[ { "comment_id": "8040735", "author": "Drone", "timestamp": "2024-09-17T04:29:35", "content": "This thing smells fishy. To get half way decent dual-band WiFi bandwidth that is actually supported it seems you have to buy a AC1300 Mbps dual-band WiFi USB 3.0 device named PiFi – The ULTIMATE Pi Router K...
1,760,371,789.998181
https://hackaday.com/2024/09/16/no-z80-no-problem/
No Z80? No Problem!
Jenny List
[ "Retrocomputing" ]
[ "eZ80", "RC2014", "z80", "zilog" ]
https://hackaday.com/wp-…atured.jpg?w=800
Earlier this year Zilog stopped production of the classic 40-pin DIP Z80 microprocessor, a move that brought a tear to the eye of retro computing enthusiasts everywhere. This chip had a huge influence on both desktop and embedded computing that lingers to this day, but it’s fair to say that the market for it has dwindl...
17
6
[ { "comment_id": "8040665", "author": "Joshua", "timestamp": "2024-09-16T20:12:02", "content": "“Earlier this year Zilog stopped production of the classic 40-pin DIP Z80 microprocessor, a move that brought a tear to the eye of retro computing enthusiasts everywhere. ”Yes, but what’s easily being forg...
1,760,371,789.439309
https://hackaday.com/2024/09/16/the-jawncon-0x1-badge-dials-up-a-simpler-time/
The JawnCon 0x1 Badge Dials Up A Simpler Time
Tom Nardi
[ "cons", "Wearable Hacks" ]
[ "badge", "badgelife", "hayes command set", "JawnCon", "modem" ]
https://hackaday.com/wp-…m_feat.jpg?w=800
For hackers of a certain age, the warbling of an analog modem remains something of a siren song. Even if you haven’t heard it in decades, the shrill tones and crunchy static are like a time machine that brings back memories of a bygone era. Alien to modern ears, in the 1980s and 90s, it was the harbinger of unlimited p...
10
5
[ { "comment_id": "8040651", "author": "Jan", "timestamp": "2024-09-16T19:09:35", "content": "“While the design is admittedly pushing the definition of what can realistically be called a “badge,” there’s a lanyard attached so it’s technically wearable.”Ehmmm… hasn’t the whole “badge” thing gotten out ...
1,760,371,789.636537
https://hackaday.com/2024/09/19/embossing-graphics-by-3d-printing-on-woodquick-hacks-embossing-graphics-by-3d-printing-on-wood/
Embossing Graphics By 3D Printing On Wood
Dave Rowntree
[ "3d Printer hacks" ]
[ "3d printing", "embossing", "tactile", "wood" ]
https://hackaday.com/wp-…atured.png?w=800
Embossing (making raised shapes) and debossing (making sunken shapes) on 3D-printed surfaces is not a new idea; we do it all the time. [Cory] from Vancouver Hack Space was playing around with 3D printing on wood, and came up with the idea of creating raised tactile surfaces using a simple transfer process . We don’t of...
9
5
[ { "comment_id": "8041555", "author": "Felix Domestica", "timestamp": "2024-09-19T16:02:01", "content": "Uhm. Speaking as a letterpress operator, the traditional way to emboss paper was to apply pressure…", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8041561...
1,760,371,789.486278
https://hackaday.com/2024/09/19/switching-regulator-mistake-fixing-for-dummies/
Switching Regulators: Mistake Fixing For Dummies
Arya Voronova
[ "Featured", "how-to", "Skills", "Slider" ]
[ "howto", "mod board", "switching regulator" ]
https://hackaday.com/wp-…e_feat.png?w=800
Some time ago, while designing the PCB for the Sony Vaio replacement motherboard, I went on a quest to find a perfect 5 V boost regulator. Requirements are simple – output 5 V at about 2A , with input ranging from 3 V to 5 V, and when the input is 5 V, go into “100% duty” (“pass-through”/”bypass”) mode where the output...
31
8
[ { "comment_id": "8041530", "author": "jenningsthecat", "timestamp": "2024-09-19T14:23:01", "content": "I’ve done a little bit of design with switching regulators, but I had the luxuries of slightly slower speeds and enough room to follow the (readily available) manufacturer’s recommended layout fair...
1,760,371,789.761662
https://hackaday.com/2024/09/19/mothbox-watches-bugs-so-you-or-your-grad-students-dont-have-to/
Mothbox Watches Bugs, So You — Or Your Grad Students — Don’t Have To
Dan Maloney
[ "green hacks", "Machine Learning" ]
[ "arducam", "computer vision", "ecology", "entomology", "insects", "machine learning", "moths", "wildlife" ]
https://hackaday.com/wp-…othbox.png?w=764
To the extent that one has strong feelings about insects, they tend toward the extremes of a spectrum that runs from a complete fascination with their diversity and the specializations they’ve evolved to exploit unique and ultra-narrow ecological niches, and “Eww, ick! Kill it!” It’s pretty clear that [Dr. Andy Quitmey...
8
3
[ { "comment_id": "8041518", "author": "Panondorf", "timestamp": "2024-09-19T13:02:42", "content": "What does it mean to be at the base of the food chain?As a human we see ourselves as being at the top right? Except for maybe some poisonous species what don’t we eat? And even those we have ways to get...
1,760,371,789.532381
https://hackaday.com/2024/09/19/a-guide-to-laser-cutting-metal-if-youve-got-the-cash/
A Guide To Laser Cutting Metal, If You’ve Got The Cash
Al Williams
[ "Laser Hacks", "Tool Hacks" ]
[ "Laser cutting" ]
https://hackaday.com/wp-…/laser.png?w=800
While many of us now have laser cutters — either a K40-style machine or one of the newer high-output diodes — you probably don’t have one that cuts metal. True, some hobby lasers now offer IR laser heads with modest power to engrave metal. The xTool S1, for example, accepts a 2 W IR laser as an option, but we doubt it ...
9
5
[ { "comment_id": "8041461", "author": "SpillsDirt", "timestamp": "2024-09-19T09:28:57", "content": "Im going more manual myself. Santa’s bringing me a 2000W 3 in 1 raycus cutter/cleaner/welding system. You can find those around $6k now.With my luck, the week after I get it, some AliE company will sta...
1,760,371,789.683139
https://hackaday.com/2024/09/18/trees-turned-into-wind-turbines-non-destructively/
Trees Turned Into Wind Turbines, Non-Destructively
Bryan Cockfield
[ "green hacks" ]
[ "energy", "generator", "linear generator", "permanent magnet", "tree", "tree branch", "wind", "Wind turbine" ]
https://hackaday.com/wp-…r-main.png?w=800
Trees and forests are an incredibly important natural resource — not only for lumber and agricultural products, but also because they maintain a huge amount of biodiversity, stabilize their local environments, and help combat climate change as a way to sequester atmospheric carbon. But the one thing they don’t do is ma...
58
30
[ { "comment_id": "8041416", "author": "Lily", "timestamp": "2024-09-19T05:21:36", "content": "I really like the idea behind the generator; efficient or not, that’s pretty neat.I really like the idea behind the generator; efficient or not, that’s pretty neat.", "parent_id": null, "depth": 1, ...
1,760,371,789.853426
https://hackaday.com/2024/09/18/creating-a-twisted-grid-image-illusion-with-a-diffusion-model/
Creating A Twisted Grid Image Illusion With A Diffusion Model
Maya Posch
[ "Art", "Artificial Intelligence" ]
[ "diffusion model", "optical illusion" ]
https://hackaday.com/wp-…lusion.jpg?w=800
Images that can be interpreted in a variety of ways have existed for many decades, with the classical example being Rubin’s vase — which some viewers see as a vase, and others a pair of human faces. When the duck becomes a bunny, if you ignore the graphical glitches that used to be part of the duck. (Credit: Steve Moul...
4
2
[ { "comment_id": "8041408", "author": "Zai1208", "timestamp": "2024-09-19T04:13:34", "content": "Is this (i.e. using the downside of something to make a new thing) not how many scientific discoveries were made? (i.e. the pacemaker which was accidentally inverted?)", "parent_id": null, "depth"...
1,760,371,790.106339
https://hackaday.com/2024/09/18/blowing-up-shell-scripts/
Blowing Up Shell Scripts
Bryan Cockfield
[ "Software Hacks" ]
[ "bash", "code", "explode", "Go", "one-liner", "script", "shell", "sol", "text", "text editor" ]
https://hackaday.com/wp-…l-main.png?w=800
One of the most universal experiences of any Linux or Unix user is working through a guide or handbook and coming across an almost unbelievably complex line of code meant to be executed with a shell. At the time of encountering a snippet like this it’s difficult to imagine any human ever having written it in the first ...
24
10
[ { "comment_id": "8041393", "author": "aki009", "timestamp": "2024-09-19T01:17:57", "content": "None of those terms define it as well. And where were you about terminology when hundreds of drones were being sent south of the border hitting everything randomly?", "parent_id": null, "depth": 1,...
1,760,371,790.061609
https://hackaday.com/2024/09/18/upgraded-raster-laser-projector-goes-rgb/
Upgraded Raster Laser Projector Goes RGB
Dave Rowntree
[ "Laser Hacks" ]
[ "laser", "laser galvo", "laser printer", "mirror", "projector", "rgb", "Teensy 4" ]
https://hackaday.com/wp-…atured.png?w=800
We’ve covered a scanning laser project by Ben Make’s Everything last year, and now he’s back with a significant update. [Ben]’s latest project now offers a higher resolution and RGB lasers . A couple of previous versions of the device used the same concept of a rotating segmented mirror synchronised to a pulsed laser d...
10
3
[ { "comment_id": "8041379", "author": "Paul", "timestamp": "2024-09-19T00:19:12", "content": "Analog still wins in this game.The jitter comes from the clock edges randomly aligning with the time the photointerrupter is triggered: you get an uncertainty of a whole clock period.The trick is you sync ev...
1,760,371,791.12057
https://hackaday.com/2024/09/18/floss-weekly-episode-801-jbang-not-your-parents-java-anymore/
FLOSS Weekly Episode 801: JBang — Not Your Parents Java Anymore
Jonathan Bennett
[ "Hackaday Columns", "Podcasts", "Slider" ]
[ "FLOSS Weekly", "java", "JBang" ]
https://hackaday.com/wp-…pewire.jpg?w=800
This week Jonathan Bennett and Jeff Massie chat with Max Rydahl Andersen about JBang, the cross-platform tool to run Java as a system scripting language. That’s a bit harder than it sounds, particularly to take advantage of Java’s rich debugging capabilities and the ecosystem of libraries that are available. Tune in to...
12
5
[ { "comment_id": "8041346", "author": "M", "timestamp": "2024-09-18T21:23:34", "content": "Sounds like a great way to get sued by Oracle. And I say that as a ZFS user.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8041510", "author": "Max andersen", ...
1,760,371,790.794914
https://hackaday.com/2024/09/18/meet-the-winners-of-the-2024-tiny-games-contest/
Meet The Winners Of The 2024 Tiny Games Contest
Tom Nardi
[ "contests", "Hackaday Columns", "Slider" ]
[ "2024 Tiny Games Challenge" ]
https://hackaday.com/wp-…tle@2x.png?w=800
Over the years, we’ve figured out some pretty sure-fire ways to get hackers and makers motivated for contests. One of the best ways is to put arbitrary limits on different aspects of the project, such as how large it can be or how much power it can consume. Don’t believe us? Then just take a look at the entries of this...
12
4
[ { "comment_id": "8041260", "author": "0xdeadbeef", "timestamp": "2024-09-18T17:34:02", "content": "One of the best ways is to put arbitrary limits on different aspects of the project, such as how large it can be or how many power it can consume.‘How many power’? 😛", "parent_id": null, "dept...
1,760,371,790.603071
https://hackaday.com/2024/09/18/airline-seats-are-for-dummies/
Airline Seats Are For Dummies
Al Williams
[ "Transportation Hacks" ]
[ "airplane seat" ]
https://hackaday.com/wp-…09/air.png?w=800
You normally don’t think a lot would go into the construction of a chair. However, when that chair is attached to a commercial jet plane, there’s a lot of technology that goes into making sure they are safe. According to a recent BBC article, testing involves crash dummies and robot arms . Admittedly, these are first-c...
10
5
[ { "comment_id": "8041268", "author": "Alphatek", "timestamp": "2024-09-18T18:18:45", "content": "“we can’t imagine anyone wanting to spend all day returning their tray table to the upright and locked position repeatedly”Try the kid sat behind me on my last flight.", "parent_id": null, "depth...
1,760,371,790.8408
https://hackaday.com/2024/09/18/catching-the-boat-gamma-ray-bursts-and-the-brightest-of-all-time/
Catching The BOAT: Gamma-Ray Bursts And The Brightest Of All Time
Dan Maloney
[ "Current Events", "Featured", "Original Art", "Science", "Slider" ]
[ "astronomy", "gamma ray", "GRB", "hypernova", "ionization", "neutron star", "satellite", "scintillator", "Supernova" ]
https://hackaday.com/wp-…Fusion.jpg?w=800
Down here at the bottom of our ocean of air, it’s easy to get complacent about the hazards our universe presents. We feel safe from the dangers of the vacuum of space, where radiation sizzles and rocks whizz around. In the same way that a catfish doesn’t much care what’s going on above the surface of his pond, so too a...
12
5
[ { "comment_id": "8041214", "author": "Tom", "timestamp": "2024-09-18T14:40:40", "content": "The energy released here is mind-boggling.Energy and mass are the same thing, right? E=m * c^2. If the energy was 10^50 Joules, then we can easily calculate the mass equivalent of that energy – 10^50 / (9 *...
1,760,371,790.658176
https://hackaday.com/2024/09/18/bringing-the-horror-of-seaman-into-the-real-world/
Bringing The Horror OfSeamanInto The Real World
Tom Nardi
[ "Games", "Robots Hacks" ]
[ "animatronic", "dreamcast", "Seaman", "vmu" ]
https://hackaday.com/wp-…_feat2.jpg?w=800
A little under 25 years ago, a particularly bizarre game was released for Sega’s Dreamcast. In actually, calling it a “game” might be something of a stretch. It was more of a pet simulator, where you need to feed and care for a virtual animal as it grows. Except rather than something like a dog or a rabbit, your pet is...
13
5
[ { "comment_id": "8041182", "author": "TheDarkTiger", "timestamp": "2024-09-18T12:57:54", "content": "Awesome!I mean, talk about feature creep, but still, an awesome work on this project!", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8041261", "autho...
1,760,371,791.012679
https://hackaday.com/2024/09/18/from-high-level-language-to-assembly/
From High Level Language To Assembly
Al Williams
[ "Linux Hacks", "Software Development" ]
[ "assembly", "linux", "x86-64" ]
https://hackaday.com/wp-…atured.jpg?w=800
If you cut your teeth on Z-80 assembly and have dabbled in other assembly languages, you might not find much mystery in creating programs using the next best thing to machine code. However, if you have only used high level languages, assembly can be somewhat daunting. [Shikaan] has an introductory article aimed to get ...
24
9
[ { "comment_id": "8041125", "author": "Cricri", "timestamp": "2024-09-18T08:29:24", "content": "I don’t know about others, but I found compilers to be pretty darn optimised now.Bear in mind that I’m not a coder by trade, so no expert by any means, but last time I wrote some inline asm was in Turbo De...
1,760,371,790.904481
https://hackaday.com/2024/09/16/keebin-with-kristina-the-one-with-the-mccool-typewriter/
Keebin’ With Kristina: The One With The (Mc)Cool Typewriter
Kristina Panos
[ "Hackaday Columns", "Peripherals Hacks", "Slider" ]
[ "blue M&Ms", "foot keyboard", "machine learning", "McCool typewriter", "ortholinear", "ortholinear keyboard", "QMK", "ring HID" ]
https://hackaday.com/wp-…Keebin.jpg?w=800
Image by [ambrush] via Hackaday.IO Okay, so this isn’t a traditional keyboard, but you can probably figure out why the RuneRing is here. Because it’s awesome! Now, let me give you the finer points. Hugely inspired by both ErgO and Somatic, RuneRing is a machine learning-equipped wearable mouse-keyboard that has a confi...
2
2
[ { "comment_id": "8040625", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-16T17:11:46", "content": "“I’m a sucker for candy colors, especially on keyboards. And candy.”Well, those of you who will be attending SuperCon now know a way to break the ice with Kristina!B^)", "p...
1,760,371,790.542013
https://hackaday.com/2024/09/16/real-time-hacking-of-a-supermarket-toy/
Real Time Hacking Of A Supermarket Toy
Jenny List
[ "Toy Hacks" ]
[ "AH soundbox", "hardware", "supermarket" ]
https://hackaday.com/wp-…atured.jpg?w=800
Sometimes those moments arise when a new device comes on the market and hardware hackers immediately take to it. Over a few days, an observer can watch them reverse engineer it and have all sorts of fun making it do things it wasn’t intended to by the original manufacturer. We’re watching this happen in real time from ...
14
4
[ { "comment_id": "8040624", "author": "xChris", "timestamp": "2024-09-16T16:46:14", "content": "(mixed Dutch/English, the site rejects Google Translate).you can translate it under firefox: select some text , right-mouse-btn [Translate selection in English], then on the translation box translate full...
1,760,371,790.956972
https://hackaday.com/2024/09/16/hack-on-self-collecting-data/
Hack On Self: Collecting Data
Arya Voronova
[ "Featured", "Interest", "Misc Hacks", "Original Art", "Slider" ]
[ "ADHD", "attention tracking", "data collection", "sense of time" ]
https://hackaday.com/wp-…ckSelf.jpg?w=800
A month ago, I’ve talked about using computers to hack on our day-to-day existence, specifically, augmenting my sense of time (or rather, lack thereof). Collecting data has been super helpful – and it’s best to automate it as much as possible. Furthermore, an augment can’t be annoying beyond the level you expect, and m...
13
8
[ { "comment_id": "8040575", "author": "zoenagy3466", "timestamp": "2024-09-16T14:11:09", "content": "Start measuring life and it becomes an chore.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8040623", "author": "LowCarbLowSugarAllNutrients", ...
1,760,371,791.067148
https://hackaday.com/2024/09/16/hack-your-eyesight-with-high-tech-bifocals/
Hack Your Eyesight With High Tech Bifocals
Al Williams
[ "Medical Hacks", "Misc Hacks" ]
[ "bifocals", "eyeglasses", "progressive lenses" ]
https://hackaday.com/wp-…/glass.png?w=800
As we get older, our eyes get worse. That’s just a fact of life. It is a rite of passage the first time you leave the eye doctor with a script for “progressive” lenses which are just fancy bifocals. However, a new high-tech version of bifocals promises you better vision , but with a slight drawback, as [Sherri L. Smith...
32
14
[ { "comment_id": "8040519", "author": "ca_heckler", "timestamp": "2024-09-16T12:45:52", "content": "There’s an even bigger (or smaller?) drawback: it appears that the active lens is just that tiny thing right in front of the the field of view, which means that you will have lots of trouble with later...
1,760,371,791.222347
https://hackaday.com/2024/09/16/usagi-electrics-paper-tape-reader-is-ready-to-hop-with-the-tube-computer/
Usagi Electric’s Paper Tape Reader Is Ready To Hop With The Tube Computer
Maya Posch
[ "Retrocomputing" ]
[ "paper tape", "punched tape", "reader", "retrocomputing" ]
https://hackaday.com/wp-…d_back.jpg?w=800
After previously working out a suitable approach to create a period-correct paper tape reader for his tube-based, MC14500B processor-inspired computer, [David Lovett] over at the Usagi Electric farm is back with a video on how he made a working tape reader . The assembled paper tape reader as seen from the front with t...
25
9
[ { "comment_id": "8040393", "author": "Karl", "timestamp": "2024-09-16T09:05:55", "content": "I’m not sure why not opt for SMD photodiodes and SMD IR LEDs, but from a purist standpoint a CNC milled block and retro photodiodes makes more sense. It was a nice article and interesting video!It just took ...
1,760,371,791.443191
https://hackaday.com/2024/09/15/microwave-forge-casts-the-sinking-est-benchy-ever/
Microwave Forge Casts The Sinking-est Benchy Ever
Dan Maloney
[ "3d Printer hacks" ]
[ "cast iron", "casting", "ceramic", "forging", "Kapton", "kiln", "metal", "microwave", "silicon carbide", "sodium silicate" ]
https://hackaday.com/wp-…enchy.jpeg?w=800
As a test artifact, 3DBenchy does a pretty good job of making sure your 3D printer is up to scratch. As an exemplar of naval architecture, though — well, let’s just say that if it weren’t for the trapped air in the infilled areas, most Benchy prints wouldn’t float at all. About the only way to make Benchy less seaworth...
7
3
[ { "comment_id": "8040580", "author": "Reg", "timestamp": "2024-09-16T14:19:02", "content": "A “forge” heats metal for forging, the process of deforming metal which has been heated until plastic.Melting and casting metal is done in a “foundry”.Both involve hot metal, but that’s all they have in commo...
1,760,371,791.314872
https://hackaday.com/2024/09/15/exploring-tapto-nfc-inegration-on-the-mister/
Exploring TapTo NFC Integration On The MiSTer
Dave Rowntree
[ "Games", "Retrocomputing" ]
[ "Amiibo", "c64", "fpga", "MiSTER", "NFC", "TapTo", "TeensyROM" ]
https://hackaday.com/wp-…atured.png?w=800
[Ken] from the YouTube channel What’s Ken Making is back with another MiSTer video detailing the TapTo project and its integration into MiSTer. MiSTer, as some may recall, is a set of FPGA images and a supporting ecosystem for the Terasic DE10-Nano FPGA board , which hosts the very capable Altera Cyclone V FPGA. The Te...
14
7
[ { "comment_id": "8040199", "author": "UT", "timestamp": "2024-09-16T02:37:45", "content": "“This allows an NFC card to be programmed with the required FPGA core and game image.” How on earth is there enough storage on a NFC card to store a FPGA bitstream and a game iso? And wouldn’t it take foreve...
1,760,371,791.375104
https://hackaday.com/2024/09/15/hackaday-links-september-15-2024/
Hackaday Links: September 15, 2024
Dan Maloney
[ "Hackaday Columns", "Hackaday links", "Slider" ]
[ "5g", "avian", "CTIA", "data", "electrocution", "fashion", "flying robot", "gpu", "hackaday links", "humanoid", "mitigation", "purse", "wearable", "wildfires", "wildlife", "wireless" ]
https://hackaday.com/wp-…banner.jpg?w=800
A quick look around at any coffee shop, city sidewalk, or sadly, even at a traffic light will tell you that people are on their phones a lot. But exactly how much is that? For Americans in 2023, it was a mind-boggling 100 trillion megabytes , according to the wireless industry lobbying association CTIA. The group doesn...
10
5
[ { "comment_id": "8040172", "author": "Hirudinea", "timestamp": "2024-09-15T23:50:02", "content": "OK, what is the Italian Institute of Technology doing to Astro Boy!?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8040189", "author": "TG", "t...
1,760,371,791.95389
https://hackaday.com/2024/09/15/archiving-data-on-paper-using-2d-images/
Archiving Data On Paper Using 2D Images
Dave Rowntree
[ "Software Hacks" ]
[ "archiving", "data coding", "error correction", "FEC", "golay code", "hamming distance", "laser printer", "qr code", "scanner" ]
https://hackaday.com/wp-…t_feat.jpg?w=800
It seems like only yesterday we covered a project using QR codes to archive data on paper (OK, it was last Thursday), so here’s another way to do it , this time with a dedicated codec using the full page. Optar or OPTical ARchiver is a project capable of squeezing a whopping 200 Kb of data onto a single A4 sheet of pap...
44
18
[ { "comment_id": "8040143", "author": "Paul", "timestamp": "2024-09-15T20:44:52", "content": "Hmm. Given that it takes 8 Mb to render a page at 300 dpi, 200 kb seems awfully poor efficiency.TFA says they combine the 600 dpi print resolution 3×3 to make 200 dpi, so 3.5 Mb of ‘real’ data.Ahh, TFA then...
1,760,371,791.806373
https://hackaday.com/2024/09/15/an-80386-upgrade-deal-and-intel-486-competitor-the-cyrix-cx486dlc/
An 80386 Upgrade Deal And Intel 486 Competitor: The Cyrix Cx486DLC
Maya Posch
[ "Retrocomputing" ]
[ "Cyrix", "Intel 486" ]
https://hackaday.com/wp-…LC_CPU.jpg?w=800
The x86 CPU landscape of the 1980s and 1990s was competitive in a way that probably seems rather alien to anyone used to the duopoly that exists today between AMD and Intel. At one point in time, Cyrix was a major player, who mostly sought to provide a good deal that would undercut Intel. One such attempt was the Cx486...
12
5
[ { "comment_id": "8040092", "author": "Nick", "timestamp": "2024-09-15T17:26:19", "content": "AMD didn’t purchase Cyrix. VIA Technologies picked up Cyrix, and Centaur with their WinChips within in the same year.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "...
1,760,371,791.90481
https://hackaday.com/2024/09/15/g4-mac-mini-is-a-wolf-in-apple-iic-clothing/
G4 Mac Mini Is A Wolf In Apple IIc Clothing
Navarre Bartz
[ "Mac Hacks" ]
[ "Apple IIc", "CRT display", "g4", "mac mini", "restomod" ]
https://hackaday.com/wp-…8f89_o.jpg?w=800
Restomods let us relive some of the glory days of industrial design with internals that would blow the socks off the original device. [Mental Hygiene] decided to update an Apple II c with a G4 brain . Starting with a broken II c, they pulled the internals, including the venerable 6502, and transplanted the parts from a...
4
3
[ { "comment_id": "8040097", "author": "cuvtixo", "timestamp": "2024-09-15T17:33:04", "content": "um, it’s a 65C02, perhaps that’s a bit pedantic, but it was fairly important for Western Design Center (WDC), which is sill around, offering a variety of updated chips based on 6502, and cores for FPGA.",...
1,760,371,791.853222
https://hackaday.com/2024/09/15/an-espresso-machine-for-the-diy-crowd/
An Espresso Machine For The DIY Crowd
Donald Papp
[ "cooking hacks" ]
[ "coffee", "diy", "espresso" ]
https://hackaday.com/wp-…Presso.png?w=800
Want to build your own espresso machine, complete with open-source software to drive it? The diyPresso might be right up your alley. diyPresso parts, laid out and ready for assembly. It might not be the cheapest road to obtaining an espresso machine, but it’s probably the most economical way to turn high-quality compon...
29
10
[ { "comment_id": "8040054", "author": "Neverm|nd", "timestamp": "2024-09-15T12:19:45", "content": "Yeah, except it costs a small fortune….", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8040055", "author": "Neverm|nd", "timestamp": "2024-09-15T12:20:23"...
1,760,371,791.723101
https://hackaday.com/2024/09/15/non-planar-ironing-makes-smooth-prints/
Non-planar Ironing Makes Smooth Prints
Al Williams
[ "3d Printer hacks" ]
[ "non-planar 3D printing", "print smoothing" ]
https://hackaday.com/wp-…/09/3d.png?w=800
If you want to smooth out the top surface of your FDM 3D prints, you can try ironing. Many slicers allow you to set this option, which drags the hot printhead through the top surface with a tiny bit of plastic to smooth out the extrusion lines. However, a recent paper explains how non-planar ironing can provide a bette...
14
6
[ { "comment_id": "8040031", "author": "fho", "timestamp": "2024-09-15T09:04:27", "content": "Wonder if you could finish your part, change the nozzle for a “hot ball end” and run that over the surface again.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "80400...
1,760,371,792.090277
https://hackaday.com/2024/09/15/watch-nasas-solar-sail-reflect-brightly-in-the-night-sky/
Watch NASA’s Solar Sail Reflect Brightly In The Night Sky
Donald Papp
[ "News", "Science", "Space" ]
[ "ACS3", "nasa", "solar sail" ]
https://hackaday.com/wp-…pt-5-2.jpg?w=800
NASA’s ACS3 (Advanced Composite Solar Sail System) is currently fully deployed in low Earth orbit, and stargazers can spot it if they know what to look for . It’s actually one of the brightest things in the night sky. When the conditions are right, anyway. ACS3’s sail is as thin as it is big. What conditions are those?...
14
8
[ { "comment_id": "8040032", "author": "Stephen", "timestamp": "2024-09-15T09:06:02", "content": "“to send a probe to Alpha Centauri in the next twenty years.”And how long will it take to get there? Centuries? Is there any hope that it will still be functioning after all that time?", "parent_id": ...
1,760,371,792.147068
https://hackaday.com/2024/09/14/a-1930s-ham-station/
A 1930s Ham Station
Al Williams
[ "Wireless Hacks" ]
[ "1930's vintage", "ham radio", "vintage" ]
https://hackaday.com/wp-…09/ham.png?w=800
[Mikrowave1] wanted to build an authentic 1930s-style ham radio station that was portable. He’s already done a regenerative receiver, but now he’s starting on a tube transmitter that runs on batteries. He’s settled on a popular design for the time, a Jones push-pull transmitter. Despite the tubes, it will only put out ...
11
8
[ { "comment_id": "8039882", "author": "wb7ond", "timestamp": "2024-09-14T11:06:39", "content": "There was a memorial “museum” of sorts called “Scotts Hut” that was the original structure. It is full of artifacts from the expedition. Not sure if there was a radio or not. But lots of food contain...
1,760,371,792.194637
https://hackaday.com/2024/09/13/player-ukulele-pulls-your-strings/
Player Ukulele Pulls Your Strings
Al Williams
[ "Musical Hacks" ]
[ "solenoid", "ukulele" ]
https://hackaday.com/wp-…09/uke.png?w=800
Automated musical instruments aren’t a new idea. From water chimes to player pianos, they’ve been around for a while. But we can’t remember the last time we saw a player ukulele. [Zeroshot] shows us one , though, and it uses an Arduino. You can see and hear it in the video below. Honestly, with all the stepper motors, ...
6
6
[ { "comment_id": "8039868", "author": "tadpole", "timestamp": "2024-09-14T08:12:39", "content": "All I can say is that now that you have released this video, you best be prepared for the response when the music industry floods you with contract offers. This is nothing less than revolutionary. Well do...
1,760,371,792.238601
https://hackaday.com/2024/09/13/supercon-2024-last-call-for-display-tech-exhibit/
Supercon 2024: Last Call For Display Tech Exhibit
Tom Nardi
[ "cons", "Parts" ]
[ "2024 Hackaday Supercon", "DesignLab", "displays", "exhibit" ]
https://hackaday.com/wp-…d_knob.png?w=800
During this year’s Hackaday Supercon, the Supplyframe DesignLab will be playing host to a unique exhibit that catalogs the evolution of display technology. That means showcasing the best and most interesting examples they can find, from the vintage to the ultra-modern. Where are all these wonderful toys coming from, yo...
2
1
[ { "comment_id": "8039895", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-14T13:06:42", "content": "Who knows, I might have a unique display among my stuff, but I have walked past it so many times that it appears normal.I’d really like to get my LED sign board working though…...
1,760,371,792.282544
https://hackaday.com/2024/09/13/pulling-apart-an-old-satellite-truck-tracker/
Pulling Apart An Old Satellite Truck Tracker
Lewin Day
[ "Misc Hacks", "Space" ]
[ "GPRS", "gps", "modem", "satellite", "satellite modem" ]
https://hackaday.com/wp-…shot-1.png?w=800
Sometimes there’s nothing more rewarding than pulling apart an old piece of hardware of mysterious origin. [saveitforparts] does just that, and recently came across a curious satellite system from a surplus store. What else could he do, other than tear it down and try to get it humming? The device appeared to be satell...
9
5
[ { "comment_id": "8039833", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-13T23:31:02", "content": "Thumbs up for Ax-Man!Interesting tear down!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039834", "author": "Gamma Raymond", ...
1,760,371,792.334274
https://hackaday.com/2024/09/13/building-a-multi-purpose-electrochemistry-device/
Building A Multi-Purpose Electrochemistry Device
Dave Rowntree
[ "chemistry hacks" ]
[ "diy", "electrochemistry", "magnet stirrer", "voltammetry" ]
https://hackaday.com/wp-…atured.png?w=800
We don’t get enough electrochemistry hacks on these pages, so here’s [Markus Bindhammer] of YouTube/ Marb’s lab fame to give us a fix with their hand-built general-purpose electrochemistry device . The basic structure is made from plyboard cut to size on a table saw and glued’n’screwed together. The top and front are c...
12
4
[ { "comment_id": "8039824", "author": "Drone", "timestamp": "2024-09-13T22:46:24", "content": "I am surprised to see only one container. Electrochemical Cells are a big part of Electro-Chemistry studies and almost always have at least two containers.[1][One] Electrochemical Cellshttps://ch302.cm.utex...
1,760,371,792.386605
https://hackaday.com/2024/09/13/2024-tiny-games-contest-neat-pcb-business-card-was-inspired-by-the-arduboy/
2024 Tiny Games Contest: Neat PCB Business Card Was Inspired By The Arduboy
Lewin Day
[ "contests", "Games" ]
[ "2024 Tiny Games Challenge", "business card", "Flappy Bird", "pcb", "pcb business card" ]
https://hackaday.com/wp-…472325.jpg?w=800
The humble business card is usually a small slip of cardboard with some basic contact details on it — but as hackers know, it can be so much more. [Marian] has provided us a great example in the form of his own digital business card , which doubles as a handheld game! Wanting to make his business card more interesting ...
0
0
[]
1,760,371,792.619136
https://hackaday.com/2024/09/13/where-do-you-connect-the-shield/
Where Do You Connect The Shield?
Arya Voronova
[ "Featured", "how-to", "News", "PCB Hacks" ]
[ "audio", "connector", "Ground", "hdmi", "pcb", "usb" ]
https://hackaday.com/wp-…design.jpg?w=800
When it comes to polarizing and confusing questions in electronics, wiring up shields is on the top-10 list when sorted by popularity. It’s a question most of us need to figure out at some point – when you place a USB socket symbol on your schematic, where do you wire up the SHIELD and MP pins? Once you look it up, you...
24
5
[ { "comment_id": "8039759", "author": "Matthias", "timestamp": "2024-09-13T17:21:58", "content": "feel you with seperating the USB-C Shield and have to thank you for pointing it out before i sent my board to the fab", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id":...
1,760,371,792.579446
https://hackaday.com/2024/09/14/cast21-brings-healing-into-2024/
Cast21 Brings Healing Into 2024
Kristina Panos
[ "Medical Hacks", "News" ]
[ "cast", "catalyst", "fracture", "resin" ]
https://hackaday.com/wp-…21-800.png?w=800
It takes but an ill-fated second to break a bone, and several long weeks for it to heal in a cast. And even if you have one of those newfangled fiberglass casts, you still can’t get the thing wet, and it’s gonna be itchy under there because your skin can’t breathe. Isn’t it high time for something better? Enter Cast21 ...
16
8
[ { "comment_id": "8040011", "author": "steelman", "timestamp": "2024-09-15T06:20:52", "content": "There is significantly less surface area to collect artwork.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8040013", "author": "jbx", "timestamp...
1,760,371,792.676375
https://hackaday.com/2024/09/14/taking-back-the-internet-with-the-tildeverse/
Taking Back The Internet With The Tildeverse
Dave Rowntree
[ "internet hacks", "Retrocomputing" ]
[ "Fediverse", "gemini", "Gopher", "minecraft", "minimalist", "radio", "retro", "Tilde", "Tildeverse", "voip", "www" ]
https://hackaday.com/wp-…atured.png?w=800
For many of us of a particular vintage, the internet blossomed in the ’90s with the invention of the Web and just a few years of development. Back then, we had the convenience of expression on the WWW and the backup of mature services such as IRC for all that other stuff we used to get up to. Some of us still hang out ...
24
11
[ { "comment_id": "8039999", "author": "BT", "timestamp": "2024-09-15T04:02:25", "content": "Big-commerce took over, and it ballooned into this enormously complex mess with people tracking you every few seconds and constantly trying to bombard you with marketing messages.And they choose to publicise t...
1,760,371,792.813456
https://hackaday.com/2024/09/14/an-earth-bound-homage-to-a-martian-biochemistry-experiment/
An Earth-Bound Homage To A Martian Biochemistry Experiment
Dan Maloney
[ "chemistry hacks", "Space" ]
[ "carbon dioxide", "carbon-14", "co2", "Labeled Release", "mars", "nutrient", "regolith", "Viking" ]
https://hackaday.com/wp-…lease.jpeg?w=800
With all the recent attention on Mars and the search for evidence of ancient life there, it’s easy to forget that not only has the Red Planet been under the figurative microscope since the early days of the Space Race, but we went to tremendous effort to send a pair of miniaturized biochemical laboratories there back i...
5
3
[ { "comment_id": "8039977", "author": "Hirudinea", "timestamp": "2024-09-14T23:50:43", "content": "So did he find life?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8040027", "author": "Menno", "timestamp": "2024-09-15T08:04:01", "co...
1,760,371,792.716704
https://hackaday.com/2024/09/14/create-custom-gridfinity-boxes-using-images-of-tools/
Create Custom Gridfinity Boxes Using Images Of Tools
Dave Rowntree
[ "3d Printer hacks", "Software Hacks" ]
[ "3d printed", "Canny", "gridfinity", "opencv" ]
https://hackaday.com/wp-…atured.png?w=800
Exhibit A: A standard-issue banana. We love it when a community grabs hold of an idea and runs wild with it despite obvious practicality issues. Gridfinity by YouTuber [Zach Freedman] is one of those concepts. For the unaware, this is a simple storage system standard, defining boxes to hold your things. These boxes can...
4
4
[ { "comment_id": "8039974", "author": "David", "timestamp": "2024-09-14T21:37:55", "content": "Standard banana,standard(ish) dose of radioactivity", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8040006", "author": "echodelta", "timestamp": "2024-09-15T0...
1,760,371,792.903995
https://hackaday.com/2024/09/14/pong-in-a-petri-dish-teasing-out-how-brains-work/
Pong In A Petri Dish: Teasing Out How Brains Work
Maya Posch
[ "Science" ]
[ "bayesian", "biological neural network", "electroactive polymers" ]
https://hackaday.com/wp-…adings.jpg?w=750
Experimental setup for the EAP hydrogel free energy principle test. (Credit: Vincent Strong et al., Cell, 2024) Of the many big, unanswered questions in this Universe, the ones pertaining to the functioning of biological neural networks are probably among the most intriguing. From the lowliest neurally gifted creatures...
1
1
[ { "comment_id": "8040233", "author": "Peter", "timestamp": "2024-09-16T04:14:31", "content": "If you Find this interesting, you should check out “the thought emporium “ . He is working on growing neurons to play doom. :)", "parent_id": null, "depth": 1, "replies": [] } ]
1,760,371,792.853508
https://hackaday.com/2024/09/14/always-something-new-under-the-sun/
Always Something New Under The Sun
Elliot Williams
[ "Hackaday Columns", "Rants" ]
[ "contest", "inspiration", "newsletter" ]
https://hackaday.com/wp-…00611.jpeg?w=800
Some of the entries we got into the Tiny Games Contest have been really mind-blowing. Just as you think you’ve seen it all, for instance, alnwlsn comes along and mills the DIP-package ATtiny84 and embeds a complete Simon game in the space normally wasted by all that plastic overmolding . It’s the tiniest, and most gonz...
7
2
[ { "comment_id": "8039946", "author": "alnwlsn", "timestamp": "2024-09-14T16:19:03", "content": "Honestly, the idea for something like this comes directly from years of reading Hackaday, which I’ve been doing since middle school. Some projects that inspired this one arehttps://hackaday.com/2011/12/19...
1,760,371,792.957113
https://hackaday.com/2024/09/14/soldering-up-close-and-personal/
Soldering, Up Close And Personal
Dan Maloney
[ "Misc Hacks" ]
[ "bga", "inspection", "Keyence", "microscope", "qfn", "smd", "solder", "through hole", "tssop" ]
https://hackaday.com/wp-…scope.jpeg?w=800
A word of warning before watching this very cool video on soldering : it may make you greatly desire what appears to be a very, very expensive microscope. You’ve been warned. Granted, most people don’t really need to get this up close and personal with their soldering, but as [Robert Feranec] points out, a close look a...
13
11
[ { "comment_id": "8039907", "author": "Sean", "timestamp": "2024-09-14T13:57:39", "content": "Really neat how it stays in focus no matter how you turn the stage or swivel the camera. Very smooth video!", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039908", ...
1,760,371,793.008086
https://hackaday.com/2024/09/12/2024-tiny-games-contest-spectacular-sub-surface-simon/
2024 Tiny Games Contest: Spectacular Sub-Surface Simon
Kristina Panos
[ "ATtiny Hacks", "contests", "Games" ]
[ "2024 Tiny Games Challenge", "attiny84" ]
https://hackaday.com/wp-…-main.jpeg?w=800
When you work with tiny things on the regular, they start to seem normal-sized to your hands and eyes. Then, if you work with even smaller packages, stuff like 0603 might as well be through-hole components. [alnwlsn] is no stranger to the small, having worked almost exclusively with surface mount components for a few y...
17
14
[ { "comment_id": "8039559", "author": "Nathan", "timestamp": "2024-09-12T23:18:04", "content": "“As you’ll see in the video after the break, the answer lies in milling, but with the motors disconnected and manually turning the knobs”That’s still milling lolIf anything, that’s the normal way milling i...
1,760,371,793.066443
https://hackaday.com/2024/09/12/digital-bumper-sticker-tells-everyone-what-youre-listening-to/
Digital Bumper Sticker Tells Everyone What You’re Listening To
Lewin Day
[ "Musical Hacks" ]
[ "audio", "charli xcx", "last.fm", "music", "spotify" ]
https://hackaday.com/wp-…758471.jpg?w=800
Bumper stickers are usually political, crude, or otherwise inflammatory. Rather a more fun example is this digital creation from [Guy Dupont], who made a bumper sticker that broadcasts what he’s listening to on the stereo. [Guy] found a nice wide 11-inch bar LCD that was the right aspect ratio to suit the “bumper stick...
23
11
[ { "comment_id": "8039528", "author": "davedarko", "timestamp": "2024-09-12T20:17:20", "content": "Every Guy Dupont project is an absolute pleasure for me to see here and on youtube.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039544", "author": "Hirudi...
1,760,371,793.314613
https://hackaday.com/2024/09/12/how-photomultipliers-detect-single-photons/
How Photomultipliers Detect Single Photons
Maya Posch
[ "Science" ]
[ "photomultiplier", "photomultiplier tube" ]
https://hackaday.com/wp-…layout.jpg?w=800
If you need to measure the presence of photons down to a very small number of them, you are looking at the use of a photomultiplier, as explained in a recent video by [Huygens Optics] on YouTube. The only way to realistically measure at such a sensitivity level is to amplify them with a photomultiplier tube (PMT). Alth...
12
7
[ { "comment_id": "8039517", "author": "philosiraptor117", "timestamp": "2024-09-12T19:35:07", "content": "sure would be a shame if somebody used semiconductor tech in photonics to build a monolithic photomultiplier that was only a few mm tall…", "parent_id": null, "depth": 1, "replies": [...
1,760,371,793.362851
https://hackaday.com/2024/09/12/building-a-subwoofer-box-out-of-decking-material/
Building A Subwoofer Box Out Of Decking Material
Lewin Day
[ "Musical Hacks" ]
[ "audio", "HiFi", "music", "speaker", "speaker box", "Speaker enclosure", "sub", "subwoofer", "subwoofer enclosure" ]
https://hackaday.com/wp-…enshot.png?w=800
When you go to build a subwoofer box, wood is the most common choice. When it came to his project, though, [Startup Chuck] decided to go a different route entirely. Rather than the usual plywood or MDF, he decided to try Trex decking instead. Why? He had some lying around, and he suspected it might just sound good. If ...
8
5
[ { "comment_id": "8039478", "author": "Snarkenstein", "timestamp": "2024-09-12T16:28:36", "content": "MDF isn’texactlywood. It’s wood flour and glue, basically.I banned MDF from my shop years ago, because the dust from cutting it is so pervasive. I don’t know what the dust from cutting this deck mate...
1,760,371,795.222917
https://hackaday.com/2024/09/12/review-ifixits-fixhub-may-be-the-last-soldering-iron-you-ever-buy/
Review: IFixit’s FixHub May Be The Last Soldering Iron You Ever Buy
Tom Nardi
[ "Featured", "Interest", "Reviews", "Tool Hacks" ]
[ "FixHub", "ifixit", "repairability", "soldering iron", "soldering station", "USB C", "webserial" ]
https://hackaday.com/wp-…_feat2.jpg?w=800
Like many people who solder regularly, I decided years ago to upgrade from a basic iron and invest in a soldering station. My RadioShack digital station has served me well for the better part of 20 years. It heats up fast, tips are readily available, and it’s a breeze to dial in whatever temperature I need. It’s older ...
100
42
[ { "comment_id": "8039439", "author": "Rob T.", "timestamp": "2024-09-12T14:11:58", "content": "I think the future of soldering irons is going to be compact but full power cordless that rapidly charges when placed on the stand. Say you had an iron that gives you a stand alone runtime of 5-10 min but...
1,760,371,795.368338
https://hackaday.com/2024/09/12/2024-tiny-games-contest-a-flappy-seagull-game-with-sound-in-only-500-bytes/
2024 Tiny Games Contest: A Flappy Seagull Game With Sound In Only 500 Bytes
Dan Maloney
[ "contests" ]
[ "2024 Tiny Games Challenge", "6502", "65uino", "assembly", "Flappy Bird", "i2c" ]
https://hackaday.com/wp-…bright.png?w=800
It was probably a reasonable assumption that the “Tiny” in our recently concluded Tiny Games Contest mostly referred to the physical footprint of the game. And indeed, that’s the way most of the entries broke, which resulted in some pretty amazing efforts. [Anders Nielsen], however, took the challenge another way and m...
4
3
[ { "comment_id": "8039456", "author": "Anders Nielsen", "timestamp": "2024-09-12T14:47:01", "content": "Thanks for the writeup! It was fun to make – even being under a bit of time pressure this weekend :)", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8039565...
1,760,371,794.898454
https://hackaday.com/2024/09/12/inkycal-makes-short-work-of-e-paper-dashboards/
Inkycal Makes Short Work Of E-Paper Dashboards
Tom Nardi
[ "home hacks", "Raspberry Pi" ]
[ "dashboard", "e-paper display", "weather display" ]
https://hackaday.com/wp-…l_feat.jpg?w=800
The e-paper “dashboard” is something we’ve seen plenty of times here at Hackaday. Use it to show your daily schedule, the news, weather, maybe the latest posts from your favorite hardware hacking website. Any information source that doesn’t need to be updated more than every hour or so is a perfect candidate. All you’v...
10
6
[ { "comment_id": "8039384", "author": "shinsukke", "timestamp": "2024-09-12T09:23:58", "content": "Cool project. I have a spare eInk screen lying around. I have designed a plastic enclosure with an ESP8266 around it but then I came to the hardest part, deciding what info I want it to display.Finally ...
1,760,371,795.418368
https://hackaday.com/2024/09/13/hackaday-podcast-episode-288-cyanotypes-antique-21-segment-displays-and-the-voynich-manuscript-in-a-new-light/
Hackaday Podcast Episode 288: Cyanotypes, Antique 21-Segment Displays, And The Voynich Manuscript In A New Light
Dan Maloney
[ "Hackaday Columns", "Podcasts" ]
[ "Hackaday Podcast" ]
https://hackaday.com/wp-…ophone.jpg?w=800
It’s Friday the 13th, and despite having to dodge black cats and poorly located ladders, Elliot and Dan were able to get together and run down the best hacks of the first week of September. Our luck was pretty good, too, seeing how we stumbled upon a coffee table that walks your drink over to you on Strandbeest legs, a...
0
0
[]
1,760,371,794.985104
https://hackaday.com/2024/09/13/recreating-a-popular-faux-nixie-clock/
Recreating A Popular Faux-Nixie Clock
Tom Nardi
[ "clock hacks", "Microcontrollers" ]
[ "clock", "fake nixie", "nixie clock", "nixie tube", "ntp", "rtc" ]
https://hackaday.com/wp-…k_feat.jpg?w=800
There’s a good chance you’ve seen “Nixie clocks” on the Internet that replace the classic cold cathode tubes with similarly sized LCD panels. The hook is that the LCDs can show pictures and animations of Nixie tubes — or pretty much anything else for that matter — to recreate the look of the real thing, while being far...
15
6
[ { "comment_id": "8039734", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-13T15:56:36", "content": "I think any project on Hackaday.io should include source code, BOM, and schematic.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8039...
1,760,371,795.119918
https://hackaday.com/2024/09/13/this-week-in-security-malicious-rollback-whois-and-more/
This Week In Security: Malicious Rollback, WHOIS, And More
Jonathan Bennett
[ "Hackaday Columns", "News", "Security Hacks", "Slider" ]
[ "Rollback", "This Week in Security", "WHOIS" ]
https://hackaday.com/wp-…rkarts.jpg?w=800
It’s time to talk about Microsoft’s patch Tuesday , and the odd vulnerability rollback that happened. CVE-2024-43491 has caught some attention, as it’s a 9.8 on the CVSS scale, is under active exploitation, and results in Remote Code Execution (RCE). Yikes, it sounds terrible! First off, what actually happened? The off...
4
4
[ { "comment_id": "8039713", "author": "LordNothing", "timestamp": "2024-09-13T14:33:00", "content": "im surprised the ms exploit didn’t involve the forced co-pilot install on win10. i asked it how to uninstall copilot and it was about as useless as i figured it would be.", "parent_id": null, ...
1,760,371,794.940408
https://hackaday.com/2024/09/13/doing-midi-with-discrete-logic-is-neat-if-not-particularly-useful/
Doing MIDI With Discrete Logic Is Neat, If Not Particularly Useful
Lewin Day
[ "Musical Hacks" ]
[ "4017", "4017 counter", "4017 counter IC", "discrete logic", "midi" ]
https://hackaday.com/wp-…194750.png?w=800
MIDI is normally baked into the chipset of a synthesizer, or something you use a microcontroller to handle. But that’s not the only way to speak the language! [Kevin] decided to have some fun doing MIDI with discrete logic instead, with some pretty neat results. [Kevin] had previously built a control voltage step seque...
4
3
[ { "comment_id": "8039719", "author": "make piece not war", "timestamp": "2024-09-13T14:52:24", "content": "Let’s make this interesting. All you need are three big buttons and a microcontroller. In any state, one button does nothing and the other two if pressed randomizes the midi settings and the ro...
1,760,371,795.023562
https://hackaday.com/2024/09/13/simple-pcb-agitator-gets-the-job-done/
Simple PCB Agitator Gets The Job Done
Lewin Day
[ "PCB Hacks", "Tool Hacks" ]
[ "agitator", "etch", "etching", "pcb", "pcb agitator", "PCB etching" ]
https://hackaday.com/wp-…ault-1.jpg?w=800
These days, PCB fab houses are just about everywhere, and you can’t go buy a taco without walking past eight of them. Still, some out there still like to etch their PCBs at home. If that sounds like you, you might see some value in [Chris Borge]’s PCB agitator. The design mostly relies on 3D printed parts, including th...
17
6
[ { "comment_id": "8039658", "author": "easy", "timestamp": "2024-09-13T08:30:58", "content": "I always just throw some ferric chloride on the stove and let the boiling do the agitation. Boards usually etch in under 20 seconds…", "parent_id": null, "depth": 1, "replies": [ { ...
1,760,371,795.174847
https://hackaday.com/2024/09/12/theres-already-a-nixie-addon-for-the-2024-supercon-badge/
There’s Already A Nixie Addon For The 2024 Supercon Badge
Lewin Day
[ "contests" ]
[ "2024 Hackaday Supercon", "2024 Supercon SAO Contest", "contests", "nixie", "nixie tube", "Simple Add-On" ]
https://hackaday.com/wp-…228956.jpg?w=800
Nixie tubes are cool, and hackers like them. Perhaps for those reasons more than any other, [Kevin Santo Cappuccio] has developed a very particular Simple Add-On for the 2024 Hackaday Supercon badge . Rad, no? The build began with a Burroughs 122P224 Nixie tube, and a HV8200 power supply. The latter component is key—it...
0
0
[]
1,760,371,795.066574
https://hackaday.com/2024/09/12/back-up-your-data-on-paper-with-lots-of-qr-codes/
Back Up Your Data On Paper With Lots Of QR Codes
Lewin Day
[ "Software Hacks" ]
[ "backup", "command line", "linux", "paper", "pdf", "print", "printer", "qr", "qr code", "QR codes" ]
https://hackaday.com/wp-…072689.png?w=800
QR codes are used just about everywhere now, for checking into venues, ordering food, or just plain old advertising. But what about data storage? It’s hardly efficient, but if you want to store your files in a ridiculous paper format— there’s a way to do that, too! QR-Backup was developed by [za3k], and is currently av...
59
24
[ { "comment_id": "8039592", "author": "Sam", "timestamp": "2024-09-13T02:20:56", "content": "I vaguely remember (years and years ago) seeing an advertisement or a website for a software product that turned your files into barcodes, which you could then fax (!) to other people. They could then scan th...
1,760,371,795.522388
https://hackaday.com/2024/09/11/2024-tiny-games-contest-micro-one-armed-bandit-hits-the-cuteness-jackpot/
2024 Tiny Games Contest: Micro One-Armed Bandit Hits The Cuteness Jackpot
Kristina Panos
[ "contests", "Games" ]
[ "2024 Tiny Games Challenge", "QT Py", "SAMD21" ]
https://hackaday.com/wp-…it-800.jpg?w=800
They don’t call slot machines one-armed bandits for nothing. And although it’s getting harder and harder to find slot machines with actual pull-able handles instead of just big buttons, you can easily simulate the handle at home with the right kind of limit switch, as [Andrew Smith] did with this micro slot machine . T...
3
3
[ { "comment_id": "8039493", "author": "Piotrsko", "timestamp": "2024-09-12T17:34:46", "content": "Igt or whoever they are nowadays still builds the one arm bandits. Seems to be a requirement in some places, but they are custom buikds", "parent_id": null, "depth": 1, "replies": [] }, ...
1,760,371,795.563857
https://hackaday.com/2024/09/11/train-speed-signaling-adapted-for-car/
Train Speed Signaling Adapted For Car
Bryan Cockfield
[ "Transportation Hacks" ]
[ "boston", "car", "gps", "indicator", "led", "mbta", "obd-ii", "power supply", "reverse engineering", "signaling", "speed", "speedometer", "train" ]
https://hackaday.com/wp-…n-main.jpg?w=800
One major flaw of designing societies around cars is the sheer amount of signage that drivers are expected to recognize, read, and react to. It’s a highly complex system that requires constant vigilance to a relatively boring task with high stakes, which is not something humans are particularly well adapted for. Modern...
33
6
[ { "comment_id": "8039333", "author": "TG", "timestamp": "2024-09-12T02:10:19", "content": "I always thought that obsessively trying to stay dead-on the exact posted speed limit and looking over your fiddly indicators and dials was detrimental to safety. Keep a general speed around the posted limit a...
1,760,371,795.941262
https://hackaday.com/2024/09/11/hacking-an-nvidia-cmp-170hx-crypto-gpu-for-em-sim-work/
Hacking An NVIDIA CMP 170HX Crypto GPU For EM Sim Work
Dave Rowntree
[ "hardware" ]
[ "crypto", "electromagnetic", "etherium", "NVIDIA", "nvidia A100", "simulation" ]
https://hackaday.com/wp-…atured.png?w=800
A few years back NVIDIA created a dedicated cryptocurrency mining GPU, the CMP 170HX. This was a heavily restricted version of its flagship A100 datacenter accelerator, using the same GA100 chip. It was intended for accelerating Ethash, the Etherium proof-of-work algorithm, and nothing else. [niconiconi] bought one to ...
7
5
[ { "comment_id": "8039362", "author": "shinsukke", "timestamp": "2024-09-12T05:37:17", "content": "I’m looking into buying an nVIDIA Tesla M40 24GB for running LLMs. They seem to be cheap enough these days but I still cannot say any GPU with LLM worthy VRAM is a good deal", "parent_id": null, ...
1,760,371,795.733287
https://hackaday.com/2024/09/11/ibms-1969-educational-computing/
IBM’s 1969 Educational Computing
Alexander Rowsell
[ "computer hacks", "Retrocomputing" ]
[ "1960s", "ibm", "IBM Hursley", "IBM museum", "retro computer clone", "schools computer" ]
https://hackaday.com/wp-…ursley.jpg?w=800
IBM got their PCs and PS/2 computers into schools in the 1980s and 1990s. We fondly remember educational games like Super Solvers: Treasure Mountain. However, IBM had been trying to get into the educational market long before the PC. In 1969, the IBM Schools Computer System Unit was developed. Though it never reached c...
10
5
[ { "comment_id": "8039297", "author": "Miles Archer", "timestamp": "2024-09-11T21:15:05", "content": "Wow. My dad worked on education software at IBM in the late 60s and he never mentioned this. Pretty advanced for 1969.", "parent_id": null, "depth": 1, "replies": [] }, { "comment...
1,760,371,795.86795
https://hackaday.com/2024/09/11/floss-weekly-episode-800-champagning-the-ladybird-browser/
FLOSS Weekly Episode 800: Champagning The Ladybird Browser
Jonathan Bennett
[ "Hackaday Columns", "Podcasts", "Slider" ]
[ "browser", "FLOSS Weekly", "SerenityOS" ]
https://hackaday.com/wp-…pewire.jpg?w=800
This week Jonathan Bennett and Aaron Newcomb chat with Andreas Kling about Ladybird, the new browser in development from the ground up. It was started as part of SerenityOS, and has since taken on a life of its own. How much of the web works on it? How many people are working on the project? And where’s the download bu...
5
4
[ { "comment_id": "8039295", "author": "Inhibit", "timestamp": "2024-09-11T20:56:22", "content": "Remember to browse responsibly with all that bubbly.", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039691", "author": "Publius Anonymous", "timestamp": "2...
1,760,371,795.681918
https://hackaday.com/2024/09/11/supercon-2023-aleksa-bjelogrlic-dives-into-circuits-that-measure-circuits/
Supercon 2023: Aleksa Bjelogrlic Dives Into Circuits That Measure Circuits
Lewin Day
[ "cons", "Hackaday Columns", "Slider" ]
[ "analog design", "circuit design", "design", "digital Oscilloscope", "front end", "oscilloscope", "USB 3" ]
https://hackaday.com/wp-…669323.png?w=800
Oscilloscopes are one of our favorite tools for electronics development. They make the hidden dances of electrons visually obvious to us, and give us a clear understanding of what’s actually going on in a circuit. The question few of us ever ask is, how do they work? Most specifically—how do you design a circuit that’s...
10
5
[ { "comment_id": "8039258", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-11T18:19:16", "content": "“Aleksa, make me an oscilloscope.”B^)", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039290", "author": "paulvdh", "timestamp":...
1,760,371,795.991578
https://hackaday.com/2024/09/11/using-a-potato-as-photographic-recording-surface/
Using A Potato As Photographic Recording Surface
Maya Posch
[ "chemistry hacks" ]
[ "analog photography", "blueprint", "photogram", "silver nitrate" ]
https://hackaday.com/wp-…ograms.jpg?w=800
Following in the tracks of unconventional science projects, [The Thought Emporium] seeks to answer the question of whether you can use a potato as a photograph recording medium . This is less crazy than it sounds, as ultimately analog photographs (and photograms ) is about inducing a light-based change in some kind of ...
11
6
[ { "comment_id": "8039218", "author": "clancydaenlightened", "timestamp": "2024-09-11T16:04:01", "content": "You can use potato to create color photosUsing an emulsion and color filterMashed potato mix “Kodak” filmI think there was a post about somewhere here", "parent_id": null, "depth": 1, ...
1,760,371,796.202421
https://hackaday.com/2024/09/11/lithium-ion-battery-hotswapping-polarity-holders/
Lithium-Ion Battery Hotswapping, Polarity, Holders
Arya Voronova
[ "Battery Hacks", "Featured", "Skills", "Slider" ]
[ "18650", "Lithium-ion battery" ]
https://hackaday.com/wp-…ithium.jpg?w=800
Everyone loves, and should respect, lithium-ion batteries. They pack a ton of power and can make our projects work better. I’ve gathered a number of tips and tricks about using them over the years , based on my own hacking and also lessons I’ve learned from others. This installment includes a grab-bag of LiIon tricks t...
29
9
[ { "comment_id": "8039187", "author": "LookAtDaShinyShiny", "timestamp": "2024-09-11T14:12:37", "content": "Page not found on the github link for the battery holder…", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8039214", "author": "Arya Voronova", ...
1,760,371,796.069756
https://hackaday.com/2024/09/11/voyager-1-completes-tricky-thruster-reconfiguration/
Voyager 1 Completes Tricky Thruster Reconfiguration
Maya Posch
[ "News", "Space" ]
[ "thruster", "voyager" ]
https://hackaday.com/wp-…r_feat.jpg?w=800
After 47 years it’s little wonder that the hydrazine-powered thrusters of the Voyager 1, used to orient the spacecraft in such a way that its 3.7 meter (12 foot) diameter antenna always points back towards Earth, are getting somewhat clogged up. As a result, the team has now switched back to the thrusters which they or...
35
8
[ { "comment_id": "8039154", "author": "Jane Phillips", "timestamp": "2024-09-11T11:40:37", "content": "Wow", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039170", "author": "The Commenter Formerly Known as Ren", "timestamp": "2024-09-11T12:46:46", ...
1,760,371,796.146602
https://hackaday.com/2024/09/11/a-look-inside-a-diy-rocket-motor/
A Look Inside A DIY Rocket Motor
Dan Maloney
[ "Space" ]
[ "Deconstruction", "graphite", "Nozzle", "phenolic", "post-mortem", "rocketry", "solid rocket motor", "test" ]
https://hackaday.com/wp-…ortem1.png?w=800
[Joe Barnard] made a solid propellant rocket motor, and as one does in such situations, he put it through its paces on the test stand. The video below is not about the test, nor is it about the motor’s construction. Rather, it’s a deconstruction of the remains of the motor in order to better understand its design, and ...
7
3
[ { "comment_id": "8039228", "author": "Laurence", "timestamp": "2024-09-11T16:30:57", "content": "Might be a good idea to add a disclaimer that this is illegal in some countries like the UK, as it’s classed as manufacturing explosives.", "parent_id": null, "depth": 1, "replies": [ {...
1,760,371,796.294447
https://hackaday.com/2024/09/10/the-apple-watch-as-an-ammeter/
The Apple Watch As An Ammeter
Jenny List
[ "Tool Hacks", "Wearable Hacks" ]
[ "Ammeter", "apple watch", "magnetometer" ]
https://hackaday.com/wp-…atured.jpg?w=800
Your shiny new personal electronic device is likely to be designed solely as an app platform to run the products of faceless corporations, so the story goes, and therefore has an ever smaller hacking potential. Perhaps that view is needlessly pessimistic, because here’s [JP3141] with an example that goes against the gr...
3
2
[ { "comment_id": "8039508", "author": "Elliot Williams", "timestamp": "2024-09-12T19:00:54", "content": "C’mon folks, this is an awesome hack! Why hasn’t anyone done this on their cellphone?", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id": "8039536", "author"...
1,760,371,796.245266
https://hackaday.com/2024/09/10/cruise-ship-lengthening-surgery-all-the-cool-companies-are-doing-it/
Cruise Ship-Lengthening Surgery: All The Cool Companies Are Doing It
Maya Posch
[ "Transportation Hacks" ]
[ "cruise line", "shipbuilding", "ships" ]
https://hackaday.com/wp-…hening.jpg?w=800
Sliding in an extra slice of cruise ship to lengthen it. (Credit: Silversea cruises) The number of people going on cruises keeps rising year over year, with the number passengers carried increasing from just over 3.7 million in 1990 to well over 28 million in 2023. This has meant an increasing demand for more and also ...
58
18
[ { "comment_id": "8036751", "author": "Zak Force", "timestamp": "2024-09-11T03:09:45", "content": "Is that not what killed the Edmond fizgerald?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8036783", "author": "Gravis", "timestamp": "2024-09...
1,760,371,796.401484
https://hackaday.com/2024/09/10/misleading-gps-philosophy-of-maps-and-you/
Misleading GPS, Philosophy Of Maps, And You
Bryan Cockfield
[ "gps hacks" ]
[ "accuracy", "approximation", "garmin", "gps", "map", "mapping", "model", "precision", "Strava" ]
https://hackaday.com/wp-…-main.jpeg?w=800
The oft-quoted saying “all models are wrong, but some are useful” is a tounge-in-cheek way of saying that at some level, tools we use to predict how the world behaves will differ from reality in some measurable way. This goes well beyond the statistics classroom it is most often quoted in, too, and is especially appare...
19
8
[ { "comment_id": "8035660", "author": "craig", "timestamp": "2024-09-11T00:52:47", "content": "I’m hard pressed to think of how a recreational hike or bike ride or whatever could be impacted at all by a tracing analyzed later that is off by as much as “tens of meters.” Honestly really thinking about ...
1,760,371,796.51462
https://hackaday.com/2024/09/10/why-have-seven-segments-when-you-can-have-21/
Why Have Seven Segments When You Can Have 21?
Dave Rowntree
[ "Parts" ]
[ "21-segment", "3d printed", "display", "led" ]
https://hackaday.com/wp-…507563.png?w=800
IO user [monte] was pointed towards an 1898 display patent issued to a [George Mason] and liked the look of the ‘creepy’ font it defined. The layout used no less than 21 discrete segments to display the complete roman alphabet and numerals, which is definitely not possible with the mere seven segments we are all famili...
35
18
[ { "comment_id": "8033724", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-10T20:28:28", "content": "Yep! I’d say that is kind of creepy!", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8033871", "author": "Andrew", "ti...
1,760,371,796.587691
https://hackaday.com/2024/09/10/mobile-coffee-table-uses-legs-to-get-around/
Mobile Coffee Table Uses Legs To Get Around
Bryan Cockfield
[ "home hacks" ]
[ "bamboo", "coffee table", "design", "genetic algorithm", "leg", "linkage", "mobile", "motor", "strandbeest", "table", "walking", "woodworking" ]
https://hackaday.com/wp-…d-main.jpg?w=800
For getting around on most surfaces, it’s hard to beat the utility of the wheel. Versatile, inexpensive, and able to be made from a wide array of materials has led to this being a cornerstone technology for the past ten thousand years or so. But with that much history it can seem a little bit played out. To change up t...
22
12
[ { "comment_id": "8032898", "author": "k-ww", "timestamp": "2024-09-10T18:36:31", "content": "Good Grief! It’s the luggage from “Discworld”!", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8034837", "author": "Joe Shaw", "timestamp": "2024-09-1...
1,760,371,796.769403
https://hackaday.com/2024/09/10/assessing-the-energy-efficiency-of-programming-languages/
Assessing The Energy Efficiency Of Programming Languages
Maya Posch
[ "Hackaday Columns", "Rants", "Slider", "Software Development" ]
[ "benchmarking", "energy efficiency", "programming languages" ]
https://hackaday.com/wp-…er_had.jpg?w=800
Programming languages are generally defined as a more human-friendly way to program computers than using raw machine code. Within the realm of these languages there is a wide range of how close the programmer is allowed to get to the bare metal, which ultimately can affect the performance and efficiency of the applicat...
67
27
[ { "comment_id": "8032172", "author": "drenehtsral", "timestamp": "2024-09-10T17:28:12", "content": "Having worked at two large household name tech companies in the last couple years I am afraid that I’ve seen firsthand that even where performance is supposed to matter (embedded systems and data mini...
1,760,371,796.70097
https://hackaday.com/2024/09/10/rescuing-high-res-displays-from-older-macs/
Rescuing High-Res Displays From Older Macs
Bryan Cockfield
[ "Mac Hacks" ]
[ "5k", "apple", "display", "imac", "power supply", "r1811", "retina", "usb", "USB C" ]
https://hackaday.com/wp-…c-main.jpg?w=800
When Apple started rolling out its Retina displays, it multiplied the amount of pixels compared to their standard, non-Retina displays by four. This increased pixel density while keeping the standard screen size — idea for those needing a lot of detail for their work. But, as is common with Apple, using these displays ...
26
8
[ { "comment_id": "8031552", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-10T15:57:28", "content": "The Title made me wonder if there are projects out there that have turned old iPads into terminals.", "parent_id": null, "depth": 1, "replies": [ { "c...
1,760,371,796.833935
https://hackaday.com/2024/09/10/a-look-at-the-small-web-part-1/
A Look At The Small Web, Part 1
Jenny List
[ "Current Events", "Featured", "Interest", "internet hacks", "Original Art", "Slider" ]
[ "gemini", "Gopher", "HTTP", "small web" ]
https://hackaday.com/wp-…allWeb.jpg?w=800
In the early 1990s I was privileged enough to be immersed in the world of technology during the exciting period that gave birth to the World Wide Web, and I can honestly say I managed to completely miss those first stirrings of the information revolution in favour of CD-ROMs, a piece of technology which definitely didn...
61
20
[ { "comment_id": "8030893", "author": "Joshua", "timestamp": "2024-09-10T14:16:10", "content": "Maybe it’s because I’m from Europe, but I did enjoy the days of Windows 3.1, System 7 and Amigas.I’ve bought shareware CD-ROMs, was fascinated by Kodak Photo CDs, Video CDs and “early” online services and...
1,760,371,797.078529
https://hackaday.com/2024/09/10/shedding-new-light-on-the-voynich-manuscript-with-multispectral-imaging/
Shedding New Light On The Voynich Manuscript With Multispectral Imaging
Donald Papp
[ "Art", "Science" ]
[ "multispectral imaging", "Voynich manuscript" ]
https://hackaday.com/wp-…ript-2.jpg?w=800
The Voynich Manuscript is a medieval codex written in an unknown alphabet and is replete with fantastic illustrations as unusual and bizarre as they are esoteric. It has captured interest for hundreds of years, and expert [Lisa Fagin Davis] shared interesting results from using multispectral imaging on some pages of th...
14
6
[ { "comment_id": "8029423", "author": "oro35", "timestamp": "2024-09-10T12:15:19", "content": "written in an unknown alphabet and is replete with fantastic illustrations as unusual and bizarre as they are esotericAlso known as schizophrenia.", "parent_id": null, "depth": 1, "replies": [] ...
1,760,371,797.139138
https://hackaday.com/2024/09/10/slim-tactile-switches-save-classic-ti-calculator-with-a-bad-keypad/
Slim Tactile Switches Save Classic TI Calculator With A Bad Keypad
Dan Maloney
[ "Repair Hacks" ]
[ "calculator", "membrane", "pcb", "smd", "tactile", "texas instruments", "ti" ]
https://hackaday.com/wp-…ogress.jpg?w=800
For vintage calculator fans, nothing strikes more fear than knowing that someday their precious and irreplaceable daily driver will become a museum piece to be looked at and admired — but never touched again. More often than not, the failure mode will be the keypad. In an effort to recover from the inevitable, at least...
16
5
[ { "comment_id": "8029140", "author": "Antron Argaiv", "timestamp": "2024-09-10T11:23:16", "content": "When scientific calculators first came out, the TIs were known for their low cost (over $100 but under $200 IIRC) while the HPs were well over $300. Thus, most people had TIs. But the HPs had MUCH n...
1,760,371,797.260471
https://hackaday.com/2024/09/09/hard-lessons-learned-while-building-a-solar-rc-plane/
Hard Lessons Learned While Building A Solar RC Plane
Maya Posch
[ "Solar Hacks" ]
[ "ardupilot", "autonomous aircraft", "RC airplane", "solar airplane" ]
https://hackaday.com/wp-…e_feat.jpg?w=800
Although not the first to try and build a DIY solar-powered remote control airplane, [ProjectAir]’s recent attempt is the most significant one in recent memory. It follows [rctestflight]’s multi-year saga with its v4 revision in 2019, as well as 2022’s rather big one by [Bearospace]. With so many examples to look at, b...
17
10
[ { "comment_id": "8027263", "author": "clind", "timestamp": "2024-09-10T07:19:41", "content": "I Wonder if a flying wing design could offer a low drag/ high wing surface area solution interesting for such an andeavour.", "parent_id": null, "depth": 1, "replies": [ { "comment...
1,760,371,797.552442
https://hackaday.com/2024/09/09/orion-ceases-operations-future-of-meade-unclear/
Orion Ceases Operations, Future Of Meade Unclear
Al Williams
[ "News", "Space" ]
[ "Orion telescopes", "telescope" ]
https://hackaday.com/wp-…/scope.png?w=800
There was a time when building a telescope was a rite of passage for budding astronomers, much as building a radio was the coming age for electronics folks. These days, many things are cheaper to buy than build, even though we do enjoy building anything we can. Orion was a big name in telescopes for many years. Their p...
32
16
[ { "comment_id": "8020591", "author": "Winston", "timestamp": "2024-09-09T11:49:03", "content": "Orion Telescopes & Binoculars Purchases Meade InstrumentsJune 1, 2021https://skyandtelescope.org/astronomy-news/orion-telescopes-binoculars-purchases-meade/Optronic Technologies, Inc., better known to bac...
1,760,371,797.2049
https://hackaday.com/2024/09/09/microsoft-sculpt-keyboard-lives-again-with-rp2040/
Microsoft Sculpt Keyboard Lives Again With RP2040
Tom Nardi
[ "Microcontrollers", "Peripherals Hacks" ]
[ "custom PCB", "drop-in replacement", "QMK", "rp2040" ]
https://hackaday.com/wp-…t_feat.jpg?w=800
Hackaday readers are likely the kind of folks that have a favorite keyboard, so you can probably imagine how devastating it would be to find out that the board you’ve sworn by for years is going out of production. Even worse, the board has some internal gremlins that show up after a few years of use, so functional ones...
8
5
[ { "comment_id": "8019360", "author": "der.ule", "timestamp": "2024-09-09T10:00:42", "content": "Incase is relauching the Microsoft Hardware portfoliohttps://www.incase.com/pages/incase-designed-by-microsoftStill, cool hack", "parent_id": null, "depth": 1, "replies": [] }, { "comm...
1,760,371,797.440313
https://hackaday.com/2024/09/08/mainframe-chip-has-360mb-of-on-chip-cache/
Mainframe Chip Has 360MB Of On-Chip Cache
Al Williams
[ "computer hacks" ]
[ "cpu", "ibm" ]
https://hackaday.com/wp-…e94bed.png?w=768
It is hard to imagine what a mainframe or supercomputer can do when we all have what amounts to supercomputers on our desks. But if you look at something like IBM’s mainframe Telum chip , you’ll get some ideas. The Telum II has “only” eight cores, but they run at 5.5 GHz. Unimpressed? It also has 360 MB of on-chip cach...
29
10
[ { "comment_id": "8017982", "author": "Hak Foo", "timestamp": "2024-09-09T06:22:44", "content": "A Top 500 list does not exclusively define ‘supercomputer’ because, if nothing else, it’s a moving target. A Raspberry Pi 1A will outbenchmark much of Cray’s 1970s and 1980s catalogue, but that doesn’t r...
1,760,371,797.329665
https://hackaday.com/2024/09/08/printed-in-space-3d-printed-metal-parts-shown-off-after-returning-from-the-iss/
Printed In Space: 3D-Printed Metal Parts Shown Off After Returning From The ISS
Maya Posch
[ "3d Printer hacks", "Space" ]
[ "3D metal printer", "international space station" ]
https://hackaday.com/wp-…nt_esa.jpg?w=800
The European Space Agency (ESA) is showing 3D-printed metal parts made onboard the International Space Station using a printer and materials the agency sent earlier this year.  While 3D printing onboard the ISS is nothing new, the printing of metal parts in space is an important advancement. The agency’s goals are to b...
21
10
[ { "comment_id": "8015774", "author": "paulvdh", "timestamp": "2024-09-09T02:14:46", "content": "Well, ISSS is 450ton of metal and other stuff. They still have 6 years to have it print itself into something else before the deorbit is scheduled.It’s one of the things I do not understand. Launch costs ...
1,760,371,797.392679
https://hackaday.com/2024/09/08/hackaday-links-september-8-2024/
Hackaday Links: September 8, 2024
Dan Maloney
[ "Hackaday Columns", "Hackaday links", "Slider" ]
[ "American Radio Relay LEague", "Animagraff", "ARRL", "blender", "boeing", "eavesdropping", "exoskeleton", "Festool", "hackaday links", "iss", "nasa", "privacy", "ransomware", "rigging", "sailing vessel", "smartphone", "Starliner" ]
https://hackaday.com/wp-…banner.jpg?w=800
OK, sit down, everyone — we don’t want you falling over and hurting yourself when you learn the news that actually yes, your phone has been listening to your conversations all along . Shocking, we know, but that certainly seems to be what an outfit called Cox Media Group (CMG) does with its “Active Listening” software,...
13
6
[ { "comment_id": "8014181", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-08T23:10:45", "content": "IIRC, Starliner’s speaker noise was explained as feedback between its audio/radio system and the audio/radio system of the ISS.", "parent_id": null, "depth": 1, "re...
1,760,371,797.493656
https://hackaday.com/2024/09/08/self-driving-cars-learn-from-our-eyes/
Self Driving Cars Learn From Our Eyes
Al Williams
[ "Transportation Hacks" ]
[ "autonomous driving", "autonomous vehicles" ]
https://hackaday.com/wp-…09/car.png?w=800
[Michelle Hampson] reports in IEEE Spectrum that Chinese researchers may improve self-driving cars by mimicking how the human eye works . In some autonomous cars, two cameras use polarizing filters to help understand details about what the car sees . However, these filters can penalize the car’s vision in low light con...
14
7
[ { "comment_id": "8012745", "author": "Daniel Scott Matthews", "timestamp": "2024-09-08T20:47:24", "content": "The real strength of human intelligence is our ability to shift modes and adapt in real time to the information sources available. i.e. We can shift focus from one sensory clue to another, o...
1,760,371,797.897671
https://hackaday.com/2024/09/08/reverse-engineering-the-web-api-of-an-akaso-ek7000-action-camera/
Reverse Engineering The Web API Of An Akaso EK7000 Action Camera
Maya Posch
[ "Reverse Engineering" ]
[ "Action camera", "camera remote" ]
https://hackaday.com/wp-…_image.png?w=800
Recently, [Richard Audette] bought an Akaso EK7000 action camera for his daughter’s no-smartphones-allowed summer camp, which meant that after his daughter returned from said camp, he was free to tinker with this new toy. Although he was not interested in peeling open the camera to ogle its innards, [Richard] was very ...
2
2
[ { "comment_id": "8011768", "author": "alialiali", "timestamp": "2024-09-08T18:01:51", "content": "Would wireshark not be ideal for this. Capturing unencrypted traffic. Not that the method used wasn’t very effective", "parent_id": null, "depth": 1, "replies": [] }, { "comment_id":...
1,760,371,797.645134
https://hackaday.com/2024/09/07/should-you-run-servo-horns-or-direct-couplings-in-your-rc-planes/
Should You Run Servo Horns Or Direct Couplings In Your RC Planes?
Lewin Day
[ "Misc Hacks" ]
[ "direct drive", "plane", "rc plane", "servo" ]
https://hackaday.com/wp-…enshot.png?w=800
Whenever you buy a servo, it usually comes with a little baggie full of various plastic horns. Most of us pick our favorite and use it in our projects. Some of us hack them up, glue them back together, and do all kinds of weird things with them. And others skip them entirely, going for direct drive instead. In a new vi...
22
11
[ { "comment_id": "7992806", "author": "Steven Clark", "timestamp": "2024-09-07T17:21:28", "content": "I always kind of assumed horns were meant as a sacrificial breakaway part. But given how often servo gears get stripped I guess maybe they didn’t work well if they were.", "parent_id": null, ...
1,760,371,798.021315
https://hackaday.com/2024/09/07/fun-and-failure/
Fun And Failure
Elliot Williams
[ "Hackaday Columns", "Slider" ]
[ "newsletter", "repair" ]
https://hackaday.com/wp-…02/Bee.jpg?w=800
My sister is a beekeeper, or maybe a meta-beekeper. She ends up making more money by breeding and selling new queen bees to other beekeepers than she does by selling honey, but that doesn’t mean that she doesn’t also process the sweet stuff from time to time. She got a free steam-heated oscillating hot knife, used for ...
20
7
[ { "comment_id": "7991802", "author": "DougM", "timestamp": "2024-09-07T14:55:03", "content": "Bench Grinders are notoriously low torque (but high speed) motors.Just about any other motor would do the trick. Try one of those online electrical surplus places, they have a zillion motors of all specs."...
1,760,371,797.96083
https://hackaday.com/2024/09/07/glowing-egg-is-a-one-oeuf-solution-for-tracking-cycles/
Glowing Egg Is A One-Oeuf Solution For Tracking Cycles
Kristina Panos
[ "Lifehacks" ]
[ "ESP8266", "fertility", "menstrual cycle", "menstruation", "ovulation", "RGB LED", "wemos d1 mini", "ws2812", "yaml" ]
https://hackaday.com/wp-…er-800.png?w=645
Look, if something happened to you every three weeks or so to basically turn you into a different person and factored heavily into whether any new humans were created, you’d probably want to keep abreast of the schedule, yeah? Yeah. So, while there are, of course, a ton of ways to do this with your phone, most of those...
28
9
[ { "comment_id": "7990789", "author": "The Commenter Formerly Known As Ren", "timestamp": "2024-09-07T12:14:37", "content": "I followed the link to learn more about how the holes in the egg were made, but didn’t find much on that.As an aside, I also clicked on the WordPress cookie policy link while t...
1,760,371,797.843854
https://hackaday.com/2024/09/07/large-language-models-on-small-computers/
Large Language Models On Small Computers
Bryan Cockfield
[ "Artificial Intelligence" ]
[ "ESP32", "GPT", "large language model", "llama", "llama.2c", "LLM", "tinyllamas" ]
https://hackaday.com/wp-…m-main.jpg?w=800
As technology progresses, we generally expect processing capabilities to scale up. Every year, we get more processor power, faster speeds, greater memory, and lower cost. However, we can also use improvements in software to get things running on what might otherwise be considered inadequate hardware. Taking this to the...
6
3
[ { "comment_id": "7989941", "author": "deL", "timestamp": "2024-09-07T09:20:24", "content": "Forget extortionate Raspberry Pi AI add-ons, many SBC processors now haveinbuiltneural processing units (NPUs)…and they absolutely book:https://www.rock-chips.com/uploads/pdf/2022.8.26/192/RK3566%20Brief%20Da...
1,760,371,798.204317
https://hackaday.com/2024/09/06/getting-started-with-polypropylene-pp-3d-printing/
Getting Started With Polypropylene (PP) 3D Printing
Maya Posch
[ "3d Printer hacks" ]
[ "polypropylene" ]
https://hackaday.com/wp-…ments.jpeg?w=799
Polypropylene (PP) is a thermoplastic that has a number of properties that sets it apart from other thermoplastics which see common use with 3D printing, including PLA, ABS and nylon (PA). Much like ABS (and the similar ASA), it is a pretty touchy material to print, especially on FDM printers. Over at the [All3DP] site...
27
15
[ { "comment_id": "7990991", "author": "sbrk", "timestamp": "2024-09-07T13:03:51", "content": "PET-G wins, in my book. I switched a number of years ago and never looked back.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "7998983", "author": "Anonymous...
1,760,371,798.161599
https://hackaday.com/2024/09/06/bluetooth-version-6-0-core-specification-released/
Bluetooth Version 6.0 Core Specification Released
Maya Posch
[ "News" ]
[ "bluetooth", "bluetooth 6" ]
https://hackaday.com/wp-…ethods.jpg?w=800
The Bluetooth SIG recently released the core specification for version 6.0 of Bluetooth. Compared to 5.x, it contains a number of changes and some new features , the most interesting probably being Channel Sounding. This builds upon existing features found in Bluetooth 5.x to determine the angle to, and direction of an...
15
7
[ { "comment_id": "7989409", "author": "Anthony", "timestamp": "2024-09-07T07:02:12", "content": "Does it have better security, I wonder?", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "7992106", "author": "The Commenter Formerly Known As Ren", ...
1,760,371,798.276418
https://hackaday.com/2024/09/06/hot-water-heater-hacked-to-run-on-solar-juice/
Hot Water Heater Hacked To Run On Solar Juice
Lewin Day
[ "Misc Hacks" ]
[ "heater", "hot water", "hot water heater", "solar panel", "solar power" ]
https://hackaday.com/wp-…905393.png?w=800
It’s 2024, and there’s no getting around it. Grid energy is expensive. [Darrell] realized that a lot of his money was going on water heating, and he came up with a neat solution. What if he could hack in some solar power to slash his bills at a minimum of fuss? It worked so well for him, he’s whipped up a calculator to...
41
12
[ { "comment_id": "7986920", "author": "Andrew", "timestamp": "2024-09-06T23:49:33", "content": "Nice! Now use solar electricity to power a heat-pump hot water heater and multiply the benefits.", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "7988027", "...
1,760,371,798.360315
https://hackaday.com/2024/09/08/2024-tiny-games-contest-an-epic-minimalist-entertainment-system-indeed/
2024 Tiny Games Contest: An Epic Minimalist Entertainment System, Indeed
Kristina Panos
[ "ATtiny Hacks", "contests", "Games" ]
[ "2024 Tiny Games Challenge", "attiny10", "GPD340" ]
https://hackaday.com/wp-…ES-800.jpg?w=800
One way to keep things tiny is to make a system with cartridges where the brain lives on each cartridge instead of the platform itself. [Michael]’s Epic Minimalist Entertainment System (EMES) is one of those, and boy, is it tiny. EMES makes use of the ATtiny10, and they don’t get much AT-tinier than that. This nearly m...
2
1
[ { "comment_id": "8023574", "author": "Ridokilos", "timestamp": "2024-09-09T21:17:33", "content": "This is the first time I’ve seen the word “lilliputian”, which my phone’s auto correct seems to indicate has the core of “lilliput” (a fictional small land according to an online dictionary), which indi...
1,760,371,798.814452
https://hackaday.com/2024/09/08/repairing-a-hallicrafters-s-120/
Repairing A Hallicrafters S-120
Al Williams
[ "Radio Hacks", "Repair Hacks", "Teardown" ]
[ "Hallicrafters", "vintage radio" ]
https://hackaday.com/wp-…rafter.png?w=800
[MIKROWAVE1] claims he’s not a radio repair guy, but he agreed to look at a malfunctioning Hallicrafters S-120 shortwave receiver. He lets us watch as he tries to get it in shape in the video below. You’ll see that one of his subscribers had done a great job restoring the radio, but it just didn’t work well. Everything...
2
1
[ { "comment_id": "8023025", "author": "Bill", "timestamp": "2024-09-09T19:16:39", "content": "When I was a kid I was handed down a 1950 era Hallicrafters receiver from my dad who bought it, I believe, at an Air Force PX. It was a pretty basic set with AM and A beat frequency oscillator which worked ...
1,760,371,798.861336
https://hackaday.com/2024/09/08/the-hidden-crystal-method/
The Hidden Crystal Method
Adam Fabio
[ "Retrocomputing" ]
[]
https://hackaday.com/wp-…193026.png?w=800
Ever been working on a project and get stuck on one of those last little details?  That’s what happened to [Empire of Scrap].  He’s building an Ohio Scientific (OSI) superboard II replica . He wants it to be accurate down to the dates on the chips. It is quite an impressive build.  The problem is the crystal. OSI used ...
25
9
[ { "comment_id": "8005068", "author": "Peter", "timestamp": "2024-09-08T08:12:30", "content": "I suffer from CDO….. that’s OCD with the letters in the right order😂", "parent_id": null, "depth": 1, "replies": [ { "comment_id": "8008886", "author": "The Commenter Form...
1,760,371,798.453714
https://hackaday.com/2024/09/07/how-hot-is-that-soldering-iron/
How Hot Is That Soldering Iron?
Al Williams
[ "Repair Hacks", "Teardown" ]
[ "soldering iron", "temperature", "thermocouple" ]
https://hackaday.com/wp-…9/lite.png?w=800
It is common these days to have a soldering iron where you can set the temperature using some sort of digital control. But how accurate is it? Probably pretty accurate, but [TheHWCave] picked up a vintage instrument on eBay that was made to read soldering iron temperature . You can see the video below, which includes a...
8
5
[ { "comment_id": "8004910", "author": "arcturus", "timestamp": "2024-09-08T07:57:42", "content": "I’ve got a meter very similar to this one. The box is grey, and the probe is just sticking out the front of the box. I think it was unbranded or at least another brand. Grabbed it along with a nice Tektr...
1,760,371,798.49668