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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2023/04/13/congratulations-low-power-winners/ | Congratulations Low-Power Winners | Elliot Williams | [
"contests",
"Hackaday Columns",
"News"
] | [] | Congratulations to the winners of the
2023 Hackaday.io Low Power Contest
! We challenged you to show us how much you could do with how little, and you did not disappoint. Our judges have put their heads together, and thanks to Digi-Key, our contest sponsor, the top three entries will be taking home a $150 gift certific... | 13 | 8 | [
{
"comment_id": "6632484",
"author": "Reluctant Cannibal",
"timestamp": "2023-04-13T19:37:54",
"content": "That Capt. Flatus O’Flaherty is obviously a fake name. WTF?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6632516",
"author": "JanW",
... | 1,760,372,334.077497 | ||
https://hackaday.com/2023/04/13/square-wheeled-bike-is-actually-an-amazing-tracked-build/ | Square-Wheeled Bike Is Actually An Amazing Tracked Build | Lewin Day | [
"Transportation Hacks"
] | [
"bicycle",
"square"
] | The invention of the wheel is considered one of the crowning achievements of early humanity. Squares don’t roll, after all. [The Q] decided to build a square-wheeled bike anyway,
with a neat tracked setup that makes for an awesome visual gag.
The wheels are made out of C-angle steel, making them both stout and incredib... | 31 | 13 | [
{
"comment_id": "6632411",
"author": "Smart Tech Tune",
"timestamp": "2023-04-13T15:37:41",
"content": "The square-wheeled bike with a tracked setup sounds like a unique visual gag. While it may not be practical for mainstream transport or velodrome racing, it’s definitely an attention-grabbing inve... | 1,760,372,334.650308 | ||
https://hackaday.com/2023/04/13/tinkercad-gets-a-move-on/ | Tinkercad Gets A Move On | Al Williams | [
"Featured",
"Interest",
"Slider",
"Software Hacks"
] | [
"physics",
"simulatation",
"tinkercad"
] | Going to the movies is an experience. But how popular do you think they’d be if you went in, bought your popcorn, picked your seat, and the curtain would rise on a large still photograph? Probably not a great business model. If a picture is worth 1,000 words, then a video is worth at least a million, and that’s why we ... | 22 | 6 | [
{
"comment_id": "6632401",
"author": "complex shape",
"timestamp": "2023-04-13T15:06:08",
"content": "They removed the ability to create shape generators so now it is very limited.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6632434",
"author": "A... | 1,760,372,334.220737 | ||
https://hackaday.com/2023/04/13/custom-bluetooth-adapter-brings-1990s-car-phone-back-online/ | Custom Bluetooth Adapter Brings 1990s Car Phone Back Online | Robin Kearey | [
"car hacks",
"Cellphone Hacks"
] | [
"1G",
"bluetooth",
"car phone",
"mitsubishi"
] | [Jeff Lau]’s Mitsubishi 3000GT comes with all the essential features you’d expect in a fancy sports car from 1993: pop-up headlights, movable spoilers, and a fully-functional telephone handset in the center console. The phone was fully functional until North America’s first-generation AMPS cellular network was shut dow... | 20 | 9 | [
{
"comment_id": "6632335",
"author": "ono",
"timestamp": "2023-04-13T11:13:03",
"content": "Nice protoboard layout !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6632356",
"author": "Bill",
"timestamp": "2023-04-13T12:16:21",
"content": "Now this... | 1,760,372,334.365357 | ||
https://hackaday.com/2023/04/13/what-can-you-do-with-discarded-fish-aggregation-devices/ | What Can You Do With Discarded Fish Aggregation Devices | Jenny List | [
"Teardown"
] | [
"buoy",
"echo sounder",
"FAD",
"iridium"
] | Often we bring you projects at the end of their trajectory so that you can marvel at a job well done, but sometimes we point you instead to the start of the story. Such is the case with [Brett Smith]’s investigation of discarded fish aggregation buoys, referred to as FADs. These 700-plus dollar devices are deployed in ... | 21 | 8 | [
{
"comment_id": "6632309",
"author": "Josuah Demangeon",
"timestamp": "2023-04-13T08:48:36",
"content": "Such a nice project!https://en.wikipedia.org/wiki/Fish_aggregating_deviceIt looks like these are totally passive (harmless even?) toward fishes: not actively sending anything that’d distract them... | 1,760,372,333.973985 | ||
https://hackaday.com/2023/04/12/autopsy-of-a-drifting-thumbstick-reveals-all/ | Autopsy Of A Drifting Thumbstick Reveals All | Lewin Day | [
"Games"
] | [
"analog stick",
"controller",
"game controller",
"gaming",
"Joystick",
"Oculus",
"thumbstick",
"vr"
] | Analog sticks have become a core part of modern video game controllers. They also routinely fail or end up drifting, consigning expensive controllers to the garbage. [sjm4306] recently did a repair job on an Oculus VR gaming controller with drifting analog sticks,
and decided to do an autopsy to figure out what actuall... | 34 | 10 | [
{
"comment_id": "6632268",
"author": "mini",
"timestamp": "2023-04-13T06:15:27",
"content": "Funny, I tore down my drifting switch joysticks and the contacts were barely worn. Sure there are marks but they’re faint.Meanwhile my working 3DS circle pad had the carbon peeling off the contacts from wear... | 1,760,372,334.300269 | ||
https://hackaday.com/2023/04/12/theres-cash-in-them-old-solar-panels/ | There’s Cash In Them Old Solar Panels | Bryan Cockfield | [
"green hacks"
] | [
"glass",
"landfill",
"metals",
"modules",
"Panels",
"recycling",
"silicon",
"solar",
"value",
"waste"
] | The first solar panels may have rolled out of Bell Labs in the 1950s, with major press around their inconsistent and patchy adoption in the decades that followed, but despite the fanfare they were not been able to compete on a price per kilowatt compared to other methods of power generation until much more recently. Si... | 82 | 20 | [
{
"comment_id": "6632231",
"author": "Nick",
"timestamp": "2023-04-13T02:09:34",
"content": "If you are serious about caring about carbon emissions and are not in favor of next-gen nuclear, then you are not serious about caring about carbon emissions.",
"parent_id": null,
"depth": 1,
"re... | 1,760,372,334.474759 | ||
https://hackaday.com/2023/04/12/the-eyes-have-it-with-this-solid-state-magic-eye/ | The Eyes Have It With This Solid State Magic Eye | Dan Maloney | [
"classic hacks"
] | [
"6E5",
"6T5",
"6U5",
"bar graph",
"led",
"lm3914",
"magic eye"
] | The classic “Magic Eye” tuning indicator was a fantastic piece of vacuum tube technology that graced all kinds of electronic gear for a fair fraction of the 20th century. But despite its prevalence, finding a new-old-stock Magic Eye tube is a tall order these days, especially for the rare versions like the 6T5. No worr... | 8 | 3 | [
{
"comment_id": "6632207",
"author": "Lee Hart",
"timestamp": "2023-04-12T23:32:49",
"content": "Very nice! That orange LED in the center is a nice touch.Did it really need 160 diodes to get each of the rings? I wonder if rectangular LEDs (say 5x2mm) could be used save some parts and make it simple ... | 1,760,372,334.02083 | ||
https://hackaday.com/2023/04/12/weird-555-function-generator-uses-feedback/ | Weird 555 Function Generator Uses Feedback | Lewin Day | [
"hardware"
] | [
"555",
"function generator"
] | There are plenty of designs out there for sawtooth and triangle function generators, many of them using the humble 555 IC. Few are readily voltage controlled, making them difficult to work with using a DAC, though.
Enter this useful design posted to EDN!
The nifty design allows both waveshape and amplitude to be contro... | 20 | 4 | [
{
"comment_id": "6632168",
"author": "ono",
"timestamp": "2023-04-12T21:42:20",
"content": "Could have been done with a FPGA",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6632184",
"author": "Andre Michael Bryx",
"timestamp": "2023-04-12T22:... | 1,760,372,333.908874 | ||
https://hackaday.com/2023/04/12/disabling-intels-backdoors-on-modern-laptops/ | Disabling Intel’s Backdoors On Modern Laptops | Bryan Cockfield | [
"computer hacks",
"Security Hacks"
] | [
"hap bit",
"IME",
"Intel Management Engine",
"novacustom",
"platform security processor",
"privacy",
"security"
] | Despite some companies making strides with ARM, for the most part, the desktop and laptop space is still dominated by x86 machines. For all their advantages, they have a glaring flaw for anyone concerned with privacy or security in the form of a hardware backdoor that can access virtually any part of the computer even ... | 32 | 13 | [
{
"comment_id": "6632126",
"author": "yadack",
"timestamp": "2023-04-12T18:44:49",
"content": "> (with the notable exception of System76)And Purism.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6632169",
"author": "Upgrade pi-top [3]",
"tim... | 1,760,372,334.15049 | ||
https://hackaday.com/2023/04/12/tech-in-plain-sight-field-guide-to-power-plugs/ | Tech In Plain Sight: Field Guide To Power Plugs | Al Williams | [
"Hackaday Columns",
"Interest"
] | [
"ac",
"mains electricity",
"plugs",
"sockets"
] | It is the bane of worldwide travel: there isn’t just one way to get AC power from the wall. The exact connector — and what you can expect when you plug in — differs from country to country. Even if you stay home, you must account for this if your designs go places and expect to plug into the wall. If you’ve ever looked... | 72 | 19 | [
{
"comment_id": "6632094",
"author": "steelman",
"timestamp": "2023-04-12T17:10:16",
"content": "without grounding, [TYPE C plugs] have mostly been replacedNo they haven’t. There are plenty devices that don’t need grounding and high currents (e.g. TV sets) that use these.",
"parent_id": null,
... | 1,760,372,334.780334 | ||
https://hackaday.com/2023/04/12/dual-extrusion-support-without-pva/ | Dual Extrusion Support Without PVA | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"supports"
] | If you have an FDM printer that features multiple hotends or can otherwise switch between different filaments, you’ve surely thought about using the capability to lay down dedicated support material. Historically the filament of choice for this is PVA, since it can be dissolved in water once the print has finished. But... | 5 | 3 | [
{
"comment_id": "6632134",
"author": "Shonky",
"timestamp": "2023-04-12T18:58:48",
"content": "Do any slicers have the option to make just the top of supports use a different material?Seems like you could save a lot of print (especially if you have a single extruder with a multi feeder setup) and cl... | 1,760,372,334.914107 | ||
https://hackaday.com/2023/04/14/low-cost-display-saved-by-rp2040/ | Low-Cost Display Saved By RP2040 | Bryan Cockfield | [
"Raspberry Pi"
] | [
"bit bang",
"color",
"display",
"driver",
"rp2040",
"spi",
"touchscreen",
"waveshare"
] | Anyone looking for components for electronics projects, especially robotics, microcontrollers, and IoT devices, has likely heard of Waveshare. They are additionally well-known suppliers of low-cost displays with a wide range of resolutions, sizes, and capabilities, but as [Dmitry Grinberg] found, they’re not all winner... | 23 | 8 | [
{
"comment_id": "6632715",
"author": "jpa",
"timestamp": "2023-04-14T16:47:33",
"content": "I don’t really understand all the rant about a SPI-connected display being slow – that’s a normal limitation of choosing SPI over parallel, and the shared bus to touch controller also makes sense if you are s... | 1,760,372,335.132938 | ||
https://hackaday.com/2023/04/14/this-week-in-security-queuejumper-js-vm2-escape-and-can-hacking/ | This Week In Security: QueueJumper, JS VM2 Escape, And CAN Hacking | Jonathan Bennett | [
"Featured",
"News",
"Security Hacks",
"Slider",
"Software Hacks"
] | [
"can-bus",
"This Week in Security",
"Watering Hole"
] | You may not be familiar with the Microsoft Message Queuing (MSMQ) service, a store and forward sort of inter-process and inter-system communication service. MSMQ has become something of a legacy product, but is still available as an optional component in Windows. And in addition to other enterprise software solutions, ... | 9 | 4 | [
{
"comment_id": "6632686",
"author": "grundt",
"timestamp": "2023-04-14T15:04:16",
"content": "For anyone else wanting to check for MSMQ: “netstat -abno | findstr 1801”(courtesyhttps://sort.veritas.com/public/documents/vie/7.0/windows/productguides/html/vcs_admin/ch08s13s07.htm)",
"parent_id": ... | 1,760,372,335.185962 | ||
https://hackaday.com/2023/04/14/self-cleaning-tech-could-help-solar-panels-keep-efficiency-up/ | Self-Cleaning Tech Could Help Solar Panels Keep Efficiency Up | Lewin Day | [
"Science"
] | [
"solar",
"solar panel",
"solar panels",
"solar power"
] | Solar panels are a special kind of magic — turning light into useful electrical energy. However, they don’t work nearly as well when they’re covered in dust, dirt, and grime. Conventional solutions involve spraying panels down with pure water, which is expensive and wasteful, or dry scrubbing, which can cause efficienc... | 58 | 8 | [
{
"comment_id": "6632627",
"author": "Jens Restemeier",
"timestamp": "2023-04-14T11:37:04",
"content": "I’m sure I’ve seen self-cleaning glass / solar panel research for quite a few years now. Is there any non-obvious problem that still needs to be solved?",
"parent_id": null,
"depth": 1,
... | 1,760,372,335.001919 | ||
https://hackaday.com/2023/04/14/its-opposite-day-for-this-novel-wankel/ | It’s Opposite Day For This Novel Wankel Engine | Bryan Cockfield | [
"Transportation Hacks"
] | [
"design",
"efficiency",
"engine",
"inside-out",
"power-to-weight",
"reliability",
"Wankel"
] | The Wankel engine seems to pop up in surprising places every so often, only to disappear into the ether before someone ultimately resurrects it for a new application and swears to get it right this time. Ultimately they come across the same problems that other Wankels suffered from, namely poor fuel efficiency and issu... | 28 | 12 | [
{
"comment_id": "6632601",
"author": "Andy Pugh",
"timestamp": "2023-04-14T08:20:45",
"content": "I was about to comment “Didn’t ‘Liquid Piston’ already do this years ago” then followed the link and realised that this _is_ Liquid Piston.It does seem like a clever design, like the best ever Betamax i... | 1,760,372,335.069774 | ||
https://hackaday.com/2023/04/13/prison-tv-gets-simple-speaker-mod/ | Prison TV Gets Simple Speaker Mod | Lewin Day | [
"home entertainment hacks"
] | [
"prison",
"retrofit",
"transparent"
] | American prisons are strict about television use. Typically they’re only to be used with headphones, and their enclosures need to be transparent so they can’t be used to smuggle goods. ClearTech makes TVs that meet these specifications, and when [Steve Pietras] got his hands on just such a unit,
he set about modding it... | 20 | 12 | [
{
"comment_id": "6632573",
"author": "Ted",
"timestamp": "2023-04-14T06:06:22",
"content": "Is there anyway Steve could stop the drugs and cellphones coming into prisons? I don’t mind my celly watching Maury as much as the other contraband.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,334.853 | ||
https://hackaday.com/2023/04/13/electric-volkswagen-adds-rooftop-solar/ | Electric Volkswagen Adds Rooftop Solar | Bryan Cockfield | [
"Transportation Hacks"
] | [
"auxiliary",
"bus",
"camping",
"electric vehicle",
"i.d. buzz",
"microbus",
"roof",
"solar",
"van",
"volkswagen",
"vw"
] | Volkswagen has continually teased the release of a new Microbus in the same way that Duke Nukem Forever strung us all along in the 00s, but unlike the fated video game it seems as though Volkswagen is finally building a hip new van rather than continually teasing its release year after year. With the clunky name of I.D... | 46 | 15 | [
{
"comment_id": "6632556",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-04-14T02:17:53",
"content": "Yes, by offloading (some) auxiliary power drains from the battery, vehicle range could be extended, but that depends on how many power drains the occupants consider necessary v... | 1,760,372,335.374723 | ||
https://hackaday.com/2023/04/13/automated-shusher-keeps-conference-loudmouths-in-line/ | Automated Shusher Keeps Conference Loudmouths In Line | Dan Maloney | [
"Misc Hacks"
] | [
"conference",
"MEMS microphone",
"mp3",
"Nano 33 BLE",
"noise",
"pulse density modulation",
"spl"
] | Few things are more annoying than being at a conference and having an inconsiderate group conducting a vociferous sidebar that drowns out the speaker. More annoying still is the inevitable shushing; nobody likes being either the shusher or the shushed. So why not take the humans out of the loop and automate the chore o... | 9 | 5 | [
{
"comment_id": "6632541",
"author": "Andrew",
"timestamp": "2023-04-13T23:32:28",
"content": "A servo to raise a 3D printed forefinger (and hand) to the 3D printed lips!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6632543",
"author": "The Comment... | 1,760,372,335.237105 | ||
https://hackaday.com/2023/04/11/the-uks-st40-spherical-tokamak-achieves-crucial-plasma-temperatures/ | The UK’s ST40 Spherical Tokamak Achieves Crucial Plasma Temperatures | Maya Posch | [
"Engineering",
"green hacks"
] | [
"clean energy",
"Fusion power",
"tokamak"
] | As the race towards the first commercially viable nuclear fusion reactor heats up, the UK-based Tokamak Energy has published a
paper
on its
recent achievements
with its ST40 spherical tokamak. Most notable is the achieving of plasma temperatures of over 100 million Kelvin, which would put this fusion reactor firmly wit... | 23 | 5 | [
{
"comment_id": "6631857",
"author": "Adam",
"timestamp": "2023-04-11T18:54:33",
"content": "Don’t forget about these dudes. The YT video they reference made for a very interesting watch.https://www.helionenergy.com/articles/ending-trenta-operations/",
"parent_id": null,
"depth": 1,
"re... | 1,760,372,335.294835 | ||
https://hackaday.com/2023/04/11/analog-anoraks-the-op-amp-contest-starts-now/ | Analog Anoraks: The Op Amp Contest Starts Now! | Elliot Williams | [
"Hackaday Columns",
"Slider"
] | [
"challenge",
"contest",
"digikey",
"op amps"
] | We thought it was time to give the analog side of Hackaday their chance to shine, and what’s the quintessential analog IC? The op amp! Whether you’re doing tricky signal conditioning, analog computations like it’s 1960, or just making music sound good, op amps are at the heart of many designs.
This contest, starting ri... | 28 | 10 | [
{
"comment_id": "6631854",
"author": "Paul",
"timestamp": "2023-04-11T18:36:54",
"content": "What’s all this stuff without mentioning RAP about?Five easy Pease’s:Troubleshooting Analog Circuits(1991)Analog Circuits(2008)His treasure troveoeuvrehosted by EDN:https://www.electronicdesign.com/home/cont... | 1,760,372,335.49357 | ||
https://hackaday.com/2023/04/11/it-isnt-webassembly-but-it-is-assembly-in-your-browser/ | It Isn’t WebAssembly, But It Is Assembly In Your Browser | Al Williams | [
"Software Development",
"Software Hacks"
] | [
"8086",
"assembly language"
] | You might think assembly language on a PC is passe. After all, we have a host of efficient high-level languages and plenty of resources. But there are times you want to use assembly for some reason. Even if you don’t, the art of writing assembly language is very satisfying for some people — like an intricate logic puzz... | 18 | 8 | [
{
"comment_id": "6631813",
"author": "Daid",
"timestamp": "2023-04-11T15:57:17",
"content": "https://daid.github.io/rgbds-live/Here, one for gameboy assembly as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6631817",
"author": "localroger",
"tim... | 1,760,372,335.546694 | ||
https://hackaday.com/2023/04/11/a-miniature-mnt-for-every-pocket/ | A Miniature MNT For Every Pocket | Kerry Scharfglass | [
"Featured",
"handhelds hacks",
"Interest",
"laptops hacks",
"Reviews",
"Slider"
] | [
"cyberdeck open source",
"Kailh chocs",
"laptop",
"libre",
"mechanical keyboard",
"MNT",
"mnt reform",
"review",
"trackball"
] | Last time Hackaday went hands on with a product from German company MNT, it was the Reform laptop; a full size computer with a full feature set and fully open source design. Now they’re back with the same value proposition and feature set crammed into a much more adorable (and colorful!) package with
the MNT Pocket Ref... | 35 | 19 | [
{
"comment_id": "6631792",
"author": "Patrick Allison",
"timestamp": "2023-04-11T14:44:32",
"content": "“If you want a fully libre device”Technically… it isn’t. It’s a compromise in terms of “libre software, but not fully libre hardware” – as in, they really don’t like binary blobs, but the iMX8.M m... | 1,760,372,335.782661 | ||
https://hackaday.com/2023/04/11/ibm-selectric-typewriters-finally-get-diy-typeballs/ | IBM Selectric Typewriters Finally Get DIY Typeballs | Bryan Cockfield | [
"classic hacks",
"Raspberry Pi"
] | [
"metal",
"openscad",
"resin",
"restoration",
"Selectric",
"typeball",
"typewriter"
] | IBM’s Selectric line of typewriters were quite popular in the 1960s, thanks in part to an innovation called the
typeball
which allowed for easy font changes on a single machine. Unfortunately, as if often the case when specialized components are involved, it’s an idea that hasn’t aged particularly well. The Selectric t... | 29 | 11 | [
{
"comment_id": "6631714",
"author": "macsimski",
"timestamp": "2023-04-11T11:32:12",
"content": "Actually the original ones I have seem to be made from metalized plastic. The coating is not that thick to keep them light enough as the acceleration they endure during typing is quite high.",
"pare... | 1,760,372,335.848969 | ||
https://hackaday.com/2023/04/11/retired-welding-robot-picks-up-side-hustle-as-cnc-router/ | Retired Welding Robot Picks Up Side Hustle As CNC Router | Dan Maloney | [
"Robots Hacks"
] | [
"abb",
"arduino",
"articulated",
"cnc",
"Industrial robot",
"rapid",
"s4",
"spindle"
] | Who says you can’t teach an old robot new tricks? Nobody, actually. That saying is about dogs. But it applies to robots too, at least judging by the way this late-90s industrial beast was put to use in a way it was never intended: as
a giant CNC router
.
The machine in question is an ABB IRB6400, a six-axis, floor-moun... | 19 | 11 | [
{
"comment_id": "6631651",
"author": "TG",
"timestamp": "2023-04-11T08:29:53",
"content": "Very jealous.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6631688",
"author": "Skwid",
"timestamp": "2023-04-11T09:56:53",
"content": "Nice. I knew a guy ... | 1,760,372,335.903399 | ||
https://hackaday.com/2023/04/10/your-multimeter-might-be-lying-to-you/ | Your Multimeter Might Be Lying To You | Bryan Cockfield | [
"Tool Hacks"
] | [
"amateur radio",
"antenna",
"circuit behavior",
"continuity",
"dc",
"ham",
"high frequency",
"multimeter",
"radio",
"short circuit",
"testing",
"tools",
"transformer"
] | Multimeters are indispensable tools when working on electronics. It’s almost impossible to build any but the most basic of circuits without one to test and troubleshoot potential issues, and they make possible a large array of measurement capabilities that are not easily performed otherwise. But when things start getti... | 33 | 11 | [
{
"comment_id": "6631602",
"author": "Wim",
"timestamp": "2023-04-11T05:38:52",
"content": "Click bait :(It’s not lying, ‘you’ just don’t know what you’re doing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631613",
"author": "Urgon",
"tim... | 1,760,372,335.971614 | ||
https://hackaday.com/2023/04/12/signed-distance-functions-modeling-in-math/ | Signed Distance Functions: Modeling In Math | Matthew Carlson | [
"Featured",
"Interest",
"Slider",
"Software Development"
] | [
"3d graphics",
"3d modeling",
"animation",
"graphics",
"rendering",
"signed distance function"
] | What if instead of defining a mesh as a series of vertices and edges in a 3D space, you could describe it as a single function? The easiest function would return the signed distance to the closest point (negative meaning you were inside the object). That’s precisely what a signed distance function (SDF) is. A signed di... | 13 | 10 | [
{
"comment_id": "6632083",
"author": "PWalsh",
"timestamp": "2023-04-12T15:00:46",
"content": "> By increasing the size of the gridI think you mean decreasing the size of the grid, or (better) increasing the resolution of the grid.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,336.029786 | ||
https://hackaday.com/2023/04/12/the-challenges-of-producing-graphene-in-quantity/ | The Challenges Of Producing Graphene In Quantity | Maya Posch | [
"Science"
] | [
"flash graphene",
"graphene"
] | We’ve all heard the incredible claims made about graphene and its many promising applications, but so far the wonder-material has been held back by the difficulty of producing it in large quantities. Although small-scale production was demonstrated many years ago using basic Scotch tape, producing grams or even kilogra... | 26 | 12 | [
{
"comment_id": "6632035",
"author": "5t5yh45yh",
"timestamp": "2023-04-12T11:25:29",
"content": "and make battery or processor ;-P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6632037",
"author": "justsayin",
"timestamp": "2023-04-12T11:32:31",
... | 1,760,372,336.095756 | ||
https://hackaday.com/2023/04/12/elegant-evening-dress-sports-servo-actuated-flowers/ | Elegant Evening Dress Sports Servo-Actuated Flowers | Robin Kearey | [
"Wearable Hacks"
] | [
"dress",
"flowers",
"servo",
"wearable electronics"
] | There’s been plenty of research into “smart fabrics”, and we’ve seen several projects involving items of clothing with electronics integrated inside. These typically include sensors and simple actuators like LEDS, but there’s no reason you can’t integrate moving electromechanical systems as well. [Rehana Al-Soltane] di... | 13 | 5 | [
{
"comment_id": "6632018",
"author": "IIVQ",
"timestamp": "2023-04-12T09:12:33",
"content": "Wow! Well done, a very creative application of simple things, executed brilliantly!It appears to me that men really lack behind in integration of tech with certain fields, especially clothing, emotion, and b... | 1,760,372,336.150943 | ||
https://hackaday.com/2023/04/11/portable-msx2-brings-the-fun-on-the-go/ | Portable MSX2 Brings The Fun On The Go | Navarre Bartz | [
"Retrocomputing"
] | [
"luggable computer",
"msx",
"Omega Home Computer",
"portable computer"
] | Something of a rarity in the US, the MSX computer standard was rather popular in other parts of the world but mostly existed in the computer-in-a-keyboard format popular in the 80s. [
Aron Hoekstra aka “nullvalue”
] wanted to build an MSX2 of their own, but decided to build it in a
period-appropriate luggable form fact... | 6 | 4 | [
{
"comment_id": "6631993",
"author": "Daniel Padilla",
"timestamp": "2023-04-12T06:41:17",
"content": "Inspiring! I expect many builds based on this idea that deviates form the standard MSX form factor. nice work.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id"... | 1,760,372,336.192711 | ||
https://hackaday.com/2023/04/11/using-old-coal-mines-as-cheap-sources-of-geothermal-heat/ | Using Old Coal Mines As Cheap Sources Of Geothermal Heat | Maya Posch | [
"green hacks"
] | [
"district heating",
"geothermal energy"
] | For as much old coal mines are a blight upon the face of the Earth, they may have at least one potential positive side-effect. Where the coal mine consists out of tunnels that were drilled deep into the soil, these tend to get flooded by groundwater after the pumps that keep them dry are turned off. Depending on the su... | 33 | 10 | [
{
"comment_id": "6631969",
"author": "DerAxeman",
"timestamp": "2023-04-12T03:39:06",
"content": "15C isn’t exactly warm in the winter but it is better than freezing. Could help quite a bit with the hot water bill too.",
"parent_id": null,
"depth": 1,
"replies": [
{
"commen... | 1,760,372,336.266537 | ||
https://hackaday.com/2023/04/11/mag-loop-antenna-has-a-brain/ | Mag Loop Antenna Has A Brain | Al Williams | [
"Radio Hacks"
] | [
"magnetic loop antenna",
"stepper motor"
] | Magnetic loop antennas are great if you are limited on space since they are just a potentially small loop of wire. The problem is, they are sharply tuned. You normally have an adjustment capacitor to tune the antenna to different frequencies. [TekMakerUK] built one with
a motor and an Arduino
that he can tune from an A... | 26 | 6 | [
{
"comment_id": "6631922",
"author": "Bruce Perens K6BP",
"timestamp": "2023-04-11T23:10:02",
"content": "What people don’t always realize is that magnetic loops are about 5% efficient.Michelle Pacquette does a great talk about them, but it doesn’t appear to be archived.Even though it’s 5% efficient... | 1,760,372,336.332031 | ||
https://hackaday.com/2023/04/11/truckla-gets-an-open-source-charging-buddy/ | Truckla Gets An Open Source Charging Buddy | Navarre Bartz | [
"car hacks",
"green hacks"
] | [
"car",
"car mod",
"cybertruck",
"EV charger",
"simone giertz",
"tailgate",
"tesla",
"truck"
] | More than three years have passed since Tesla announced its Cybertruck, and while not a one has been delivered, the first Tesla truck, Truckla, has kept on truckin’. [Simone Giertz] just posted an update of what Truckla has been up to
since it was built
.
[Giertz] and friend’s DIT (do-it-together) truck was
something o... | 11 | 3 | [
{
"comment_id": "6631965",
"author": "CityZen",
"timestamp": "2023-04-12T02:57:29",
"content": "No link to the “mating ritual” video?https://www.youtube.com/shorts/alfrNIrv0Sg",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631975",
"author": "If an ... | 1,760,372,336.395362 | ||
https://hackaday.com/2023/04/10/the-hello-world-of-gpt/ | The Hello World Of GPT? | Al Williams | [
"Artificial Intelligence"
] | [
"ai",
"GPT",
"pytorch"
] | Someone wants to learn about Arduino programming. Do you suggest they blink an LED first? Or should they go straight for a 3D laser scanner with galvos, a time-of-flight sensor, and multiple networking options? Most of us need to start with the blinking light and move forward from there. So what if you want to learn ab... | 73 | 8 | [
{
"comment_id": "6631580",
"author": "The Mighty Buzzard",
"timestamp": "2023-04-11T03:36:37",
"content": "I’ve NEVER written anything as simple as Hello World or blinking an LED. If my understanding of what’s going on is that terrible, I either read until it’s not or just start writing and learn as... | 1,760,372,336.501292 | ||
https://hackaday.com/2023/04/10/my-glasses-hear-everything-im-not-saying/ | My Glasses Hear Everything I’m Not Saying! | Al Williams | [
"Wearable Hacks"
] | [
"machine vision",
"voice command",
"voice recognition"
] | There was a time when you saw someone walking down the street talking to no one, they were probably crazy. Now you have to look for a Bluetooth headset. But soon they may just be quietly talking to their glasses. Cornell University researchers have
EchoSpeech
which use sonar-like sensors in a pair of glasses to watch y... | 4 | 3 | [
{
"comment_id": "6631560",
"author": "Tommy",
"timestamp": "2023-04-11T02:21:38",
"content": "Why does that girl look like she’s being held against her will??",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631573",
"author": "The Commenter Formerly ... | 1,760,372,336.645659 | ||
https://hackaday.com/2023/04/10/busting-wireless-esd-wrist-straps-with-ltt-and-electroboom/ | Busting Wireless ESD Wrist Straps With LTT And ElectroBOOM | Maya Posch | [
"Science",
"Tool Hacks"
] | [
"electrostatic discharge",
"esd strap"
] | Nobody likes getting zapped from an electrostatic discharge, no matter whether you’re a fragile ASIC or a bag-of-mostly-salty-water humanoid. To prevent this, ESD wrist straps and similar are essential tools, as they prevent the build-up of a charge on your humanoid’s skin, essentially like a very large electrolyte-fil... | 28 | 11 | [
{
"comment_id": "6631445",
"author": "robertrapplean",
"timestamp": "2023-04-10T20:14:23",
"content": "Very amusing, but he could have avoided the zap by holding a metal bar and using that to touch things. Just sayin’.",
"parent_id": null,
"depth": 1,
"replies": [
{
"commen... | 1,760,372,336.847288 | ||
https://hackaday.com/2023/04/10/dyson-hair-dryer-becomes-jet-engine/ | Dyson Hair Dryer Becomes Jet Engine | Al Williams | [
"3d Printer hacks"
] | [
"jet engine",
"metal 3d printing"
] | While Dyson makes some good products, they aren’t known for being economical. Case in point: [Integza] spent $500 on a hair dryer. While he does have a fine head of hair, we suspected he wasn’t after it for its intended purpose, and we were right. It turns out he
wanted to make it into a jet engine
! Why? Oh, come on. ... | 18 | 3 | [
{
"comment_id": "6631439",
"author": "Severe Tire Damage",
"timestamp": "2023-04-10T19:57:55",
"content": "Is this one of these crazy projects where wasting an incredible amount of money is part of the draw to watch the video? The horrid expression captured in the “sample” or whatever it is called ... | 1,760,372,336.903152 | ||
https://hackaday.com/2023/04/10/supercon-2022-aedan-cullen-is-creating-an-ar-system-to-beat-the-big-boys/ | Supercon 2022: Aedan Cullen Is Creating An AR System To Beat The Big Boys | Maya Posch | [
"cons",
"Hackaday Columns",
"Slider",
"Virtual Reality"
] | [
"2022 Hackaday Supercon",
"augmented reality"
] | There’s something very tantalizing about an augmented reality (AR) overlay that can provide information in daily life without having to glance at a smartphone display, even if it’s just for that sci-fi vibe. Creating a system that is both practical and useful is however far from easy, which is where
Aedan Cullen
‘s att... | 10 | 5 | [
{
"comment_id": "6631400",
"author": "Charles Lamb",
"timestamp": "2023-04-10T18:23:04",
"content": "“…off the shell components…”? This should please the mollusks.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631709",
"author": "ono",
"tim... | 1,760,372,336.698119 | ||
https://hackaday.com/2023/04/10/playing-78-rpm-shellac-records-its-not-just-about-speed/ | Playing 78 RPM Shellac Records: It’s Not Just About Speed | Maya Posch | [
"Musical Hacks"
] | [
"78 RPM",
"shellac",
"vinyl records"
] | What is the difference between 78, 45, and 33 RPM records? Obviously most people would say the speed, which of course is true to a degree.
But as [Techmoan] covers in a recent video
, there’s a whole lot more to the playback of 78 RPM records. Especially the older type without so-called ‘microgrooves’. Even if you have... | 25 | 8 | [
{
"comment_id": "6631362",
"author": "echodelta",
"timestamp": "2023-04-10T16:35:13",
"content": "Years ago I had a slim attractive mono tube preamp with the power amp chassis sitting on the floor. 10 position switches for bass and treble and another 10 position switch with many record brands both i... | 1,760,372,337.223703 | ||
https://hackaday.com/2023/04/10/the-real-john-wick-style-bullet-proof-suit/ | The Real John Wick-Style Bullet Proof Suit | Al Williams | [
"Engineering",
"Featured",
"Fiction",
"Slider"
] | [
"ballistic armor",
"bulletproof",
"john wick",
"kevlar"
] | If you’ve seen the John Wick movies, you’ve probably had to suspend your disbelief about many things, but the bulletproof suits are perhaps the hardest thing to swallow. They look like stylish suits but are impervious to just about anything at any range. What’s more is when you are hit, they seem to absorb all impact w... | 55 | 10 | [
{
"comment_id": "6631332",
"author": "Bigfoot T",
"timestamp": "2023-04-10T14:27:07",
"content": "Shoot for the head",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631341",
"author": "Ostracus",
"timestamp": "2023-04-10T14:53:06",
"c... | 1,760,372,336.998149 | ||
https://hackaday.com/2023/04/10/tree-supports-are-pretty-so-why-not-make-them-part-of-the-print/ | Tree Supports Are Pretty, So Why Not Make Them Part Of The Print? | Donald Papp | [
"3d Printer hacks"
] | [
"3d printed",
"generative",
"scaffolding",
"supports",
"tree supports"
] | Here’s an idea that [Nephlonor] shared a couple years ago, but is worth keeping in mind because one never knows when it might come in handy. He 3D printed a marble run track and
kept the generated tree supports
. As you can see in the image above, the track resembles a roller-coaster and the tree supports function as a... | 5 | 1 | [
{
"comment_id": "6631293",
"author": "tiopepe123",
"timestamp": "2023-04-10T11:36:36",
"content": "the next iteration is to add a keyboard attached with far magnets to select new routes, stopping points…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631306... | 1,760,372,337.089104 | ||
https://hackaday.com/2023/04/10/isd1700-based-lo-fi-sampler/ | ISD1700 Based Lo-Fi Sampler | Matthew Carlson | [
"Musical Hacks"
] | [
"ISD1700",
"music",
"sampler",
"sequencer"
] | Custom music instruments here at Hackaday range from wacky to poignant.
OpnBeat by [Hiro Akihabara]
focuses on something different: simplicity.
There are few buttons, the design and code are optimized to be straightforward and easy to modify, and the interface is slick. Eight musical keys complement three interface key... | 5 | 3 | [
{
"comment_id": "6631276",
"author": "Reluctant Cannibal",
"timestamp": "2023-04-10T10:26:52",
"content": "ISD15100 would give you 48 khz audio.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6631333",
"author": "chango",
"timestamp": "2023-04-10T14:33... | 1,760,372,337.036576 | ||
https://hackaday.com/2023/04/09/parallel-computing-on-the-picocray-rp2040-cluster/ | Parallel Computing On The PicoCray RP2040 Cluster | Joseph Long | [
"Microcontrollers"
] | [
"cluster computing",
"cray",
"cray-1",
"mandelbrot",
"parallel computing",
"Raspberry Pi Pico",
"rp2040"
] | [ExtremeElectronics] cleverly demonstrates that if one Raspberry Pi Pico is good, then nine must be awesome. The
PicoCray
project connects multiple Raspberry Pi Pico microcontroller modules into a parallel architecture leveraging an
I2C bus
to communicate between nodes.
The same PicoCray code runs on all nodes, but a ... | 28 | 12 | [
{
"comment_id": "6631209",
"author": "IronMew",
"timestamp": "2023-04-10T05:46:52",
"content": "I’m curious – is this actually useful for something, or is it a “because I can” project? That MCU is very versatile, but I wonder if there’s any scenario where this setup is more practical for parallel co... | 1,760,372,337.157708 | ||
https://hackaday.com/2023/04/09/holograms-the-future-of-speedy-nanoscale-3d-printing/ | Holograms: The Future Of Speedy Nanoscale 3D Printing? | Dave Rowntree | [
"Science"
] | [
"3d printing",
"dlp",
"hologram",
"Holography",
"micromachining",
"nanoparticles",
"resin printing"
] | 3D printing by painting with light beams on a vat of liquid plastic was once the stuff of science fiction, but now is very much science-fact. More than that, it’s consumer-level technology that we’re almost at the point of being blasé about. Scientists and engineers the world over have been quietly beavering away in th... | 7 | 4 | [
{
"comment_id": "6631153",
"author": "Ostracus",
"timestamp": "2023-04-10T02:36:58",
"content": "Resin as expensive as perfume.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631245",
"author": "makes you go hmmmm....",
"timestamp": "2023-04... | 1,760,372,337.272328 | ||
https://hackaday.com/2023/04/09/hackaday-links-april-9-2023/ | Hackaday Links: April 9, 2023 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"bitcoin",
"calipers",
"cryptocurrency",
"easter egg",
"hackaday links",
"heist",
"lunar",
"macOS",
"NFT",
"private key",
"rover",
"stm32",
"theft",
"Visual Studio",
"VS Code",
"wallet"
] | When it comes to cryptocurrency security, what’s the best way to secure the private key? Obviously, the correct answer is to write it on a sticky note and put it on the bezel of your monitor; nobody’ll ever think of looking there. But, if you’re slightly more paranoid, and you have access to a Falcon 9,
you might just ... | 17 | 5 | [
{
"comment_id": "6631004",
"author": "Truth",
"timestamp": "2023-04-09T23:21:44",
"content": "What happens if it undergoes a RUD (rapid unscheduled disassembly) at launch or landing. To me it sounds like there will be always backup copy of the private key here on earth, at least until it is in place... | 1,760,372,337.324611 | ||
https://hackaday.com/2023/04/09/wolverine-gives-your-python-scripts-the-ability-to-self-heal/ | Wolverine Gives Your Python Scripts The Ability To Self-Heal | Donald Papp | [
"Artificial Intelligence",
"Software Development"
] | [
"ai",
"error correction",
"GPT-4",
"python"
] | [BioBootloader] combined Python and a hefty dose of of AI for a fascinating proof of concept:
self-healing Python scripts
. He shows things working in a video, embedded below the break, but we’ll also describe what happens right here.
The demo Python script is a simple calculator that works from the command line, and [... | 38 | 12 | [
{
"comment_id": "6630938",
"author": "Josh",
"timestamp": "2023-04-09T20:54:40",
"content": "Very cool. As an aside: anyone recognize that editor and shell environment? It looks interesting.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6630960",
"a... | 1,760,372,337.468533 | ||
https://hackaday.com/2023/04/09/intels-iapx-432-gordon-moores-gamble-and-intels-failed-32-bit-cisc/ | Intel’s IAPX 432: Gordon Moore’s Gamble And Intel’s Failed 32-bit CISC | Maya Posch | [
"Retrocomputing"
] | [
"iAPX 432"
] | Intel C43201-5 Release 1 chip: Instruction Decoder and Microinstruction Sequencer of iAPX 432 General Data Processor (GDP). The chip is in a 64-contact leadless ceramic QUad Inline Package (QUIP), partially obscured by metal retention clip of the 3M socket.
In a recent
article
on
The Chip Letter
[Babbage] looks at the
... | 51 | 9 | [
{
"comment_id": "6630877",
"author": "Jon Mayo",
"timestamp": "2023-04-09T17:06:41",
"content": "You have to crack a few eggs to cook an omelette. And Intel’s later CPUs could even cook the omelette.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6631135",
... | 1,760,372,337.718029 | ||
https://hackaday.com/2023/04/07/photoplotting-pcbs-with-a-3d-printer/ | Photoplotting PCBs With A 3D Printer | Al Williams | [
"3d Printer hacks",
"PCB Hacks"
] | [
"pcb",
"photoplotter"
] | Do you ever wonder why your PCB maker uses Gerber files? It doesn’t have to do with baby food. Gerber was the company that introduced photoplotting. Early machines used a xenon bulb to project shapes from an aperture to plot on a piece of film. You can then use that film for photolithography which has a lot of uses, in... | 23 | 9 | [
{
"comment_id": "6630173",
"author": "Daniel",
"timestamp": "2023-04-07T20:31:36",
"content": "This is such beautiful Art!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6630181",
"author": "Andy Pugh",
"timestamp": "2023-04-07T21:01:56",
"content"... | 1,760,372,337.779679 | ||
https://hackaday.com/2023/04/07/spice-up-the-humble-16x2-lcd-with-big-digits/ | Spice Up The Humble 16×2 LCD With Big Digits | Dan Maloney | [
"Parts",
"Software Hacks"
] | [
"16x2",
"arduino",
"character set",
"digit",
"lcd"
] | The 16×2 LCD display is a classic in the microcontroller world, and for good reason. Add a couple of wires, download a library, mash out a few lines of code, and your project has a user interface. A utilitarian and somewhat boring UI, though, and one that can be hard to read at a distance. So why not spice it up with
t... | 16 | 8 | [
{
"comment_id": "6630146",
"author": "IIVQ",
"timestamp": "2023-04-07T18:49:30",
"content": "Nice, using the full lit character (which is in the default character set) as 9th “caracter”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6630162",
"autho... | 1,760,372,337.618769 | ||
https://hackaday.com/2023/04/07/share-your-projects-take-pictures/ | Share Your Projects: Take Pictures | Arya Voronova | [
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"photography"
] | Information is diesel for a hacker’s engine, and it’s fascinating how much can happen when you share what you’re working on. It could be a pretty simple journey – say, you record a video showing you fixing your broken headphones, highlighting a particular trick that works well for you. Someone will see it as an entire ... | 38 | 14 | [
{
"comment_id": "6630151",
"author": "JanW",
"timestamp": "2023-04-07T19:11:38",
"content": "That’s quite a long artice for saying: take not too sh***y pics of your projects and publish them. It’s what people already do for as long as there’s projects and the internet…",
"parent_id": null,
"... | 1,760,372,337.857643 | ||
https://hackaday.com/2023/04/07/hackaday-podcast-213-not-your-grandfathers-grandfather-clock-the-engineering-behind-art-hydrogen-powered-flight/ | Hackaday Podcast 213: Not Your Grandfather’s Grandfather Clock, The Engineering Behind Art, Hydrogen Powered Flight | Tom Nardi | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Join Hackaday Editors Elliot Williams and Tom Nardi as they review some of their favorite hacks and projects of the past week. The episode starts with a discussion about the recently announced Artemis II crew, and how their mission compares to the Apollo program of the 1960s and 70s.
From there, the pair theorize as to... | 7 | 5 | [
{
"comment_id": "6630131",
"author": "derek",
"timestamp": "2023-04-07T17:09:26",
"content": "Derek here (maker of the grandfather clock). …You guys really “got it” and made me laugh – you’re right, it’s a clock that’s not really a clock, just a pleasant kinetic sound maker. The other clocks in the ... | 1,760,372,339.926174 | ||
https://hackaday.com/2023/04/07/string-operations-the-hardware-way/ | String Operations The Hard(ware) Way | Al Williams | [
"Retrocomputing"
] | [
"8086",
"ken shirriff"
] | One of the interesting features of the 8086 back in 1978 was the provision for “string” instructions. These took the form of prefixes that would repeat the next instruction a certain number of times. The next instruction was meant to be one of a few string instructions that operated on memory regions and updated pointe... | 7 | 6 | [
{
"comment_id": "6630134",
"author": "Martin",
"timestamp": "2023-04-07T17:36:22",
"content": "Interesting read. I’m wondering how many compilers used those instructions, if any. Or they were used only in hand crafted assembly?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,372,339.591666 | ||
https://hackaday.com/2023/04/07/this-week-in-security-cookie-monster-cyberghost-nexx-and-dead-angles/ | This Week In Security: Cookie Monster, CyberGhost, NEXX, And Dead Angles | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"NEXX",
"supply chain attack",
"This Week in Security",
"vpn"
] | “Operation Cookie Monster” ranks as one of the best code names in recent memory. And it’s apropo, given
what exactly went down
. Genesis Market was one of those marketplaces where criminals could buy and sell stolen credentials. This one was a bit extra special.
Websites and services are getting better about detecting ... | 5 | 3 | [
{
"comment_id": "6630079",
"author": "some guy",
"timestamp": "2023-04-07T14:12:33",
"content": "About this VPN-stuff:>releasing a fixed client in just a handful of weeks.That’s a typo i assume, you meant “days”? Because “just a handful of WEEKS” is horribly slow to fix a serious problem…",
"par... | 1,760,372,339.745407 | ||
https://hackaday.com/2023/04/07/arbitrary-code-execution-over-radio/ | Arbitrary Code Execution Over Radio | Bryan Cockfield | [
"Radio Hacks",
"Security Hacks"
] | [
"amateur radio",
"APRS",
"attack",
"code execution",
"ham",
"memory",
"radio",
"research",
"security",
"software",
"vulnerability",
"winaprs"
] | Computers connected to networks are constantly threatened by attackers who seek to exploit vulnerabilities wherever they can find them. This risk is particularly high for machines connected to the Internet, but any network connection can be susceptible to attacks. As highlighted by security researcher and consultant [R... | 71 | 11 | [
{
"comment_id": "6630054",
"author": "Dude",
"timestamp": "2023-04-07T12:04:41",
"content": "> It’s a good reminder to use open-source software when possible so issues like these can get resolvedIs it better though?There aren’t that many honest people actively poring over every bit of open source co... | 1,760,372,340.038389 | ||
https://hackaday.com/2023/04/07/building-the-ohsillyscope/ | Building The OhSillyScope | Al Williams | [
"Musical Hacks",
"Raspberry Pi"
] | [
"LED music visualizer",
"music visualization"
] | If you have a Raspberry Pi connected to an LED matrix, you might think about creating a simple oscilloscope. Of course, the Pi isn’t really well-suited for that and neither is an LED matrix, so [Thomas McDonald] decided to create the
OhSillyScope
, instead.
The device isn’t very practical, but it does add some flash to... | 6 | 3 | [
{
"comment_id": "6630040",
"author": "NFM",
"timestamp": "2023-04-07T11:00:40",
"content": "I wonder if the raspi could do a realtime audio waterfall spectrum display with an RGB LED panel?I have the parts, but my programming skills are limited to solder….",
"parent_id": null,
"depth": 1,
... | 1,760,372,339.636093 | ||
https://hackaday.com/2023/04/06/tube-amplifier-uses-low-voltage-sips-battery/ | Tube Amplifier Uses Low Voltage, Sips Battery | Bryan Cockfield | [
"classic hacks"
] | [
"2P29L",
"2SH27L",
"amp",
"amplifier",
"heater",
"low power",
"low voltage",
"tube",
"vacuum tube"
] | Much like vinyl records, tube amplifiers are still prized for their perceived sound qualities, even though both technologies have been largely replaced otherwise. The major drawback to designing around vacuum tubes, if you can find them at all, is often driving them with the large voltages they often require to heat th... | 25 | 11 | [
{
"comment_id": "6629998",
"author": "holysnippet",
"timestamp": "2023-04-07T07:03:41",
"content": "The project is empty, there are no files or instructions. No photos, diagrams or videos.Is it enough to send an anecdote to be published on HaD? I must be missing something, could someone put a link t... | 1,760,372,340.102556 | ||
https://hackaday.com/2023/04/06/chatgpt-powers-a-different-kind-of-logic-analyzer/ | ChatGPT Powers A Different Kind Of Logic Analyzer | Dan Maloney | [
"Machine Learning"
] | [
"ai",
"chatbot",
"ChatGPT",
"logic",
"logical fallacy",
"machine learning",
"speech to text",
"SPP",
"whisper"
] | If you’re hoping that
this AI-powered logic analyzer
will help you quickly debug that wonky digital circuit on your bench with the magic of AI, we’re sorry to disappoint you. But if you’re in luck if you’re in the market for something to help you detect logical fallacies someone spouts in conversation. With the magic o... | 17 | 5 | [
{
"comment_id": "6629990",
"author": "shinsukke",
"timestamp": "2023-04-07T06:01:56",
"content": "Even lawyers and judges consider “precedents” as valid but when I do it its whataboutism?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6630010",
"auth... | 1,760,372,339.693992 | ||
https://hackaday.com/2023/04/06/fast-scanning-bed-leveling/ | Fast Scanning Bed Leveling | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"auto bed leveling",
"surface scanner"
] | The bane of 3D printing is what people commonly call bed leveling. The name is a bit of a misnomer since you aren’t actually getting the bed level but making the bed and the print head parallel. Many modern printers probe the bed at different points using their own nozzle, a contact probe, or a non-contact probe and de... | 29 | 12 | [
{
"comment_id": "6629942",
"author": "Conor Stewart",
"timestamp": "2023-04-07T00:16:04",
"content": "Even with all the fancy probes now, it is still best to have the bed mostly trammed and just use the probe for warping compensation or if your bed isn’t flat. The probes are great but having the pri... | 1,760,372,339.880019 | ||
https://hackaday.com/2023/04/06/reviving-a-legend-mamiya-rb67-repair/ | Reviving A Legend: Mamiya RB67 Repair | Maya Posch | [
"Repair Hacks"
] | [
"camera",
"Mamiya",
"Mamiya RB67"
] | The damaged parts in the camera are circled in red. Original graphic is from the Mamiya service manual.
When it comes to professional medium format analog cameras, the Mamiya RB67 is among the most well-known and loved, ever since its introduction in 1970. Featuring not only support for 120 and 220 film options, but al... | 26 | 14 | [
{
"comment_id": "6629868",
"author": "now just Bob",
"timestamp": "2023-04-06T20:14:38",
"content": "In a previous lifetime I owned a portrait studio and the RB67 was my mainstay camera. The 180mm lens was incredible with both excellent sharpness and exposure corner to corner, as well as offering e... | 1,760,372,339.814444 | ||
https://hackaday.com/2023/04/06/even-amstrad-spectrums-need-their-bugs-fixing/ | Even Amstrad Spectrums Need Their Bugs Fixing | Jenny List | [
"Retrocomputing"
] | [
"Amstrad",
"Amstrad Spectrum",
"sinclair",
"ZX spectum"
] | The history of the Sinclair ZX Spectrum is one that mirrors the fortunes of the British home computer industry, one of an early 8-bit boom followed by a sharp decline as manufacturers failed to capitalise on the next generation of 16-bit machines.
The grey ZX Spectrum on [Keri Szafir]’s bench
is one that encapsulates t... | 2 | 1 | [
{
"comment_id": "6629901",
"author": "NQ",
"timestamp": "2023-04-06T22:11:05",
"content": "I’m glad someone stepped to the plate and got the bugs fixing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6630042",
"author": "Keri Szafir",
"times... | 1,760,372,339.547787 | ||
https://hackaday.com/2023/04/06/retrotechtacular-voice-controlled-typewriter-science-project-in-1958/ | Retrotechtacular: Voice Controlled Typewriter Science Project In 1958 | Al Williams | [
"Hackaday Columns",
"History",
"Retrotechtacular",
"Slider"
] | [
"Retrotechtacluar",
"voice recognition"
] | Hackaday readers might know [Victor Scheinman] as the pioneer who built some of the first practical robot arms. But what was a kid like that doing in high school? Thanks to a film about the 1958 New York City Science Fair, we know he was building
a
voice-activated typewriter
. Don’t believe it? Watch it yourself below,... | 17 | 10 | [
{
"comment_id": "6629816",
"author": "Michael Black",
"timestamp": "2023-04-06T17:51:42",
"content": "Is that the same year Lee Felsenstein had a scince fair project? I can’t remember what, but there’s a photo, I think in Fire in the Valley.That was before he was at Berkeley, and Community Memory."... | 1,760,372,340.218209 | ||
https://hackaday.com/2023/04/08/mechanical-gif-animates-with-the-power-of-magnets/ | Mechanical GIF Animates With The Power Of Magnets | Dan Maloney | [
"classic hacks"
] | [
"animation",
"avionics",
"Muybridge",
"rack and pinion",
"RAF",
"relay"
] | It doesn’t matter how you pronounce it, because whichever way you choose to say “GIF” is guaranteed to cheese off about half the people listening. Such is the state of our polarized world, we suppose, but there’s one thing we all can agree on — that
a mechanical GIF is a pretty cool thing
.
What’s even better about thi... | 16 | 11 | [
{
"comment_id": "6630474",
"author": "Mechenger",
"timestamp": "2023-04-08T19:06:49",
"content": "That’s fun!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6630486",
"author": "solipso",
"timestamp": "2023-04-08T19:32:22",
"content": "I do not lik... | 1,760,372,340.272055 | ||
https://hackaday.com/2023/04/08/design-for-people/ | Design For People | Elliot Williams | [
"Hackaday Columns"
] | [
"newsletter"
] | We all make things. Sometimes we make things for ourselves, sometimes for the broader hacker community, and sometimes we make things for normal folks. It’s this last category where it gets tricky, and critical. I was reminded of all of this watching
Chris Combs’ excellent Supercon 2022 talk
on how to make it as an arti... | 52 | 18 | [
{
"comment_id": "6630363",
"author": "Dan",
"timestamp": "2023-04-08T15:07:32",
"content": "Label things! the buttons! What it even is…!Make sure that every wire is secure – give it a good shake and drop it a few times to see UFM anything is loose.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,372,340.365281 | ||
https://hackaday.com/2023/04/08/your-fuji-digital-camera-is-hackable/ | Your Fuji Digital Camera Is Hackable | Jenny List | [
"digital cameras hacks",
"Software Hacks"
] | [
"camera",
"Fuji",
"ThreadX"
] | There was a time when a digital camera was a surprisingly simple affair whose on-board processor didn’t have much in the way of smarts beyond what was needed to grab an image from the sensor and compress it onto some storage. But as they gained more features, over time cameras acquired all the trappings of a fully-fled... | 9 | 8 | [
{
"comment_id": "6630323",
"author": "Billy Bob",
"timestamp": "2023-04-08T12:48:02",
"content": "How can you make such a post without mentioning CHDK? SMH….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6630443",
"author": "Chris",
"timestamp": "2023... | 1,760,372,340.467854 | ||
https://hackaday.com/2023/04/08/reactivating-a-harris-rf-130-urt-23-transmitter/ | Reactivating A Harris RF-130 URT-23 Transmitter | Al Williams | [
"Radio Hacks",
"Teardown"
] | [
"ham radio",
"harris",
"navy"
] | If you enjoy old military hardware, you probably know that Harris made quite a few heavy-duty pieces of radio gear.
[K6YIC] picked up a nice example
: the Harris RF-130 URT-23. These were frequently used in the Navy and some other service branches to communicate in a variety of modes on HF. The entire set included an e... | 14 | 7 | [
{
"comment_id": "6630295",
"author": "dendad",
"timestamp": "2023-04-08T09:27:26",
"content": "The only Harris transmitters I have worked on were the 100KW AM Harris transmitters at Radio Australia, Shepparton. They were fun to learn as they were unlike the old AWA “normal” transmitters in that the ... | 1,760,372,340.522349 | ||
https://hackaday.com/2023/04/07/pi-microcontroller-still-runs-a-webserver/ | Pi Microcontroller Still Runs A Webserver | Bryan Cockfield | [
"Microcontrollers"
] | [
"dynamic",
"html",
"microcontroller",
"pi pico",
"pico",
"python",
"raspberry pi",
"STATIC",
"web server"
] | At first glance, the Raspberry Pi Pico might seem like a bit of a black sheep when compared to the other offerings from the Raspberry Pi Foundation. While most of the rest of their lineup can run Linux environments with full desktops, the Pico is largely limited to microcontroller duties in exchange for much smaller pr... | 14 | 6 | [
{
"comment_id": "6630268",
"author": "Ffr",
"timestamp": "2023-04-08T05:51:36",
"content": "Microdot is also worth to check out",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6630329",
"author": "william payne (@william45994166)",
"timestamp": "2023-04... | 1,760,372,340.574975 | ||
https://hackaday.com/2023/04/07/the-sounds-emitted-by-plants-are-real-but-they-are-still-not-talking/ | The Sounds Emitted By Plants Are Real But They Are Still Not Talking | Maya Posch | [
"Science"
] | [
"botany",
"plants",
"sounds"
] | A recent
paper
published by
researchers
at the university of Tel Aviv in
Cell
on the sounds they captured from ‘stressed’ plants had parts of the internet abuzz with what this meant, with some suggesting that this was an early April Fools prank. The fun part here is the news item is not that plants make noise, but rath... | 13 | 8 | [
{
"comment_id": "6630239",
"author": "SB5K",
"timestamp": "2023-04-08T02:09:21",
"content": "I thought the plants were saying “Feed me, Seymour! I’m a mean green momma from outer space!”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6630242",
"author": "O... | 1,760,372,340.714336 | ||
https://hackaday.com/2023/04/07/riding-the-rails-by-ebike/ | Riding The Rails By Ebike | Bryan Cockfield | [
"Transportation Hacks"
] | [
"bicycle",
"califorina",
"ebike",
"electric",
"exploration",
"history",
"outriggers",
"rail",
"railroad",
"train"
] | As most developed countries around the world continue to modernize their transportation infrastructure with passenger rail, countries in North America have been abandoning railroads for over a century now, assuming that just one more lane will finally solve their traffic problems. Essentially the only upside to the aba... | 42 | 15 | [
{
"comment_id": "6630227",
"author": "John McHugh",
"timestamp": "2023-04-08T00:14:27",
"content": "A couple of decades ago, we lived in Pittsburgh, Pa. There were many miles of abandoned rail lines north of us. At that time I looked into building a “rail bike” and found that there was an active co... | 1,760,372,340.79579 | ||
https://hackaday.com/2023/04/06/forget-chatgpt-and-play-rock-paper-scissors-with-yourself-instead/ | Forget ChatGPT And Play Rock-Paper-Scissors With Yourself Instead | Orlando Hoilett | [
"Arduino Hacks"
] | [
"ChatGPT",
"rock paper scissors"
] | This isn’t like the cool AI everyone’s getting caught up with these days, but we’re sure it will make a
fun party gimmick
nonetheless.
The premise of [CrazyScience]’s game is really simple, with three servos connected to labels that display rock, paper, and scissors, respectively. The game code is written to pick a lab... | 3 | 3 | [
{
"comment_id": "6629783",
"author": "Jan Praegert",
"timestamp": "2023-04-06T15:38:49",
"content": "There is a nice drinking game (German style including Jägermeister) with RPS…https://www.youtube.com/watch?v=WKR9e4WNvSY",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comme... | 1,760,372,340.838899 | ||
https://hackaday.com/2023/04/06/if-they-fire-the-nukes-will-they-even-work/ | If They Fire The Nukes, Will They Even Work? | Lewin Day | [
"Featured",
"Interest",
"Misc Hacks",
"Original Art",
"Slider"
] | [
"a-bomb",
"h-bomb",
"nuclear",
"nuclear weapon",
"nuclear weapons"
] | 2022 was a harrowing year in a long line of harrowing years. A brutal war in Europe raised the prospect of nuclear war as the leaders behind the invasion rattled sabers and made thinly veiled threats to use weapons of mass destruction. And all this as we’re still working our way through the fallout of a global pandemic... | 146 | 30 | [
{
"comment_id": "6629770",
"author": "Olivier",
"timestamp": "2023-04-06T14:44:58",
"content": "Its important to remember a few things in regards to “A brutal war in Europe raised the prospect of nuclear war as the leaders behind the invasion rattled sabers and made thinly veiled threats to use weap... | 1,760,372,341.079138 | ||
https://hackaday.com/2023/04/06/finding-paths-with-water-is-a-mazing/ | Finding Paths With Water Is A-Mazing | Al Williams | [
"Science"
] | [
"fluidics",
"maze"
] | We aren’t sure if it qualifies as fluidic logic, but [Steve Mould] was inspired by a simulation of water flowing through a maze and decided to
build some actual mazes and watch water flowing through them
. It turns out there are several physical effects in play, and you can see [Steve] discuss them in the video below.
... | 18 | 9 | [
{
"comment_id": "6629735",
"author": "juergenUK",
"timestamp": "2023-04-06T12:21:21",
"content": "Really amazing",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6629738",
"author": "Nathan",
"timestamp": "2023-04-06T12:27:30",
"content": "I’m not su... | 1,760,372,340.894492 | ||
https://hackaday.com/2023/04/06/printing-antennas-on-circuit-boards/ | Printing Antennas On Circuit Boards | Bryan Cockfield | [
"PCB Hacks",
"Radio Hacks"
] | [
"2.4 ghz",
"antenna",
"Coax",
"microwave",
"pcb",
"printed",
"radio",
"wi-fi",
"yagi",
"yagi-uda"
] | Yagi-Uda antennas, or simply “Yagis”, are directional antennas that focus radio waves to increase gain, meaning that the radio waves can travel further in that direction for a given transmitter power. Anyone might recognize an old TV antenna on a roof that uses this type of antenna, but they can be used to increase the... | 19 | 12 | [
{
"comment_id": "6629699",
"author": "hardsoftlucid",
"timestamp": "2023-04-06T08:14:20",
"content": "looks more like a mono-pole though",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6629709",
"author": "John",
"timestamp": "2023-04-06T09:54... | 1,760,372,341.131808 | ||
https://hackaday.com/2023/04/05/no-home-cinema-is-complete-without-a-motorized-projector/ | No Home Cinema Is Complete Without A Motorized Projector | Jenny List | [
"home entertainment hacks"
] | [
"home theatre",
"projector",
"scissor lift"
] | In the home of the future, everything is automated. Some of us are already there, in dwellings fully tricked-out with IoT and smart home devices. But they don’t somehow look as
futuristic
as a home in which everything is
motorized
. We don’t know whether this was the intention, but we certainly get a futuristic vibe fr... | 5 | 3 | [
{
"comment_id": "6629733",
"author": "Martin",
"timestamp": "2023-04-06T11:56:54",
"content": "Even with my high rooms of 3,3m the postion of the bemer about 20cm below the ceiling is perfect for viewing. I never missed any lift. The beamer is of course mounted upside down so it projects the image d... | 1,760,372,341.173449 | ||
https://hackaday.com/2023/04/05/opening-up-asic-design/ | Opening Up ASIC Design | Bryan Cockfield | [
"Software Hacks"
] | [
"ASIC",
"circuit",
"design",
"ic",
"integrated circuit",
"memory",
"openram",
"ram",
"sram",
"tool"
] | The odds are that if you’ve heard about application-specific integrated circuits (ASICs) at all, it’s in the context of cryptocurrency mining. For some currencies, the only way to efficiently mine them anymore is to build computers so single-purposed they can’t do anything else. But an ASIC is a handy tool to develop f... | 7 | 3 | [
{
"comment_id": "6629677",
"author": "Bill Gates",
"timestamp": "2023-04-06T03:34:32",
"content": "Nice! SRAM compilers are a huge deal.Now we need some DFT tools, scan insertion, drc checking, ATPG, compression, etc.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_i... | 1,760,372,341.215151 | ||
https://hackaday.com/2023/04/05/rp2040-and-5v-logic-best-friends-this-fx9000p-confirms/ | RP2040 And 5V Logic – Best Friends? This FX9000P Confirms! | Arya Voronova | [
"Microcontrollers",
"Raspberry Pi",
"Retrocomputing"
] | [
"5V tolerant",
"Raspberry Pi Pico",
"rp2040"
] | Over the years, we’ve seen some modern microcontrollers turn out to be 5V-tolerant – now,
RP2040 joins the crowd
. Half a year ago, when we covered
an ISA card based on a Pi Pico,
[Eben Upton]
left a comment
saying that RP2040 is, technically, 5V tolerant for GPIO input purposes. The datasheets don’t state this because... | 25 | 11 | [
{
"comment_id": "6629657",
"author": "Conor Stewart",
"timestamp": "2023-04-06T01:08:02",
"content": "I’m surprised they didn’t just make the GPIO 5 V tolerant. Some other microcontrollers like STM32 manage it. The rp2040 is meant for hobbyists and a lot of hobbyists level components still use 5 V."... | 1,760,372,341.516993 | ||
https://hackaday.com/2023/04/05/a-soft-soldering-jig-for-hard-projects/ | A Soft Soldering Jig For Hard Projects | Matthew Carlson | [
"Tool Hacks"
] | [
"3d printed",
"custom tool",
"openscad",
"silicone"
] | We’ve seen some absolutely gorgeous freeform circuit sculptures. There’s a mystic quality to taking what has normally been hidden away for safety and reliability reasons and putting it on display for everyone to see. Of course, creating these unique circuit sculptures takes considerable time and effort. [Inne] created
... | 22 | 7 | [
{
"comment_id": "6629595",
"author": "J",
"timestamp": "2023-04-05T20:41:56",
"content": "This. Is. AMAZING. I need to get this now",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6629617",
"author": "Eric",
"timestamp": "2023-04-05T21:45:03",
"cont... | 1,760,372,341.353256 | ||
https://hackaday.com/2023/04/05/tempus-nectit-a-diy-knitting-clock-with-instructions/ | Tempus Nectit, A DIY Knitting Clock With Instructions | Navarre Bartz | [
"clock hacks",
"home hacks",
"Reverse Engineering"
] | [
"clock",
"fiber arts",
"knitting",
"knitting clock",
"raspberry pi",
"scarf",
"stepper motor",
"textiles",
"time",
"yarn",
"yarn work"
] | We’re no strangers to unusual clocks here at Hackaday, and some of our favorites make time a little more tangible like
[Kyle Rankin]’s knitting clock
.
Inspired by our coverage of
[Siren Elise Wilhelmsen]’s knitting clock
, [Rankin] decided to build one of his own. Since details on the build from the original artist we... | 1 | 1 | [
{
"comment_id": "6674868",
"author": "Nick",
"timestamp": "2023-08-22T08:37:34",
"content": "The write-up in the first link superb. Much, much better than a Youtube video. Thank you, [Kyle Rankin]!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,341.295207 | ||
https://hackaday.com/2023/04/05/retrotechtacular-solder-like-its-1944/ | Retrotechtacular: Solder Like Its 1944! | Al Williams | [
"Hackaday Columns",
"Retrotechtacular",
"Slider"
] | [
"Retrotechtacluar",
"soldering"
] | When we first saw this 1944 US Office of Education film about hand soldering, we figured it might still have some good information. Well, perhaps it does, but the 1944 soldering was with a giant iron, and the work looked more like metal bricks than anything we’ve soldered lately. Of course, the physics is all the same,... | 37 | 11 | [
{
"comment_id": "6629540",
"author": "TG",
"timestamp": "2023-04-05T17:11:55",
"content": "Periscope Film is a treasure trove. So much beautiful & ridiculous old military and industrial gadgetry. Lovely standard broadcasting accent narration. Hand-painted title cards. Glad that channel exists",
... | 1,760,372,341.591703 | ||
https://hackaday.com/2023/04/05/typewriter-mashup-becomes-120-year-old-teletype/ | Typewriter Mashup Becomes 120-Year-Old Teletype | Jenny List | [
"classic hacks"
] | [
"steampunk",
"teletype",
"typewriter"
] | Vintage typewriters can be beautiful and elegant devices. But there’s a limit to their value if, as with the 1903 Remington owned by [Daniel Ross], they are fire-damaged and have a seized mechanism. What did he do with what was essentially a piece of scrap metal? Produce an unholy mashup of the vintage machine and a 19... | 13 | 8 | [
{
"comment_id": "6629510",
"author": "Michael Black",
"timestamp": "2023-04-05T15:41:13",
"content": "People wou ld use typewriters as keyboards, for CW or RTTY. Though I recall none used for printing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6629523"... | 1,760,372,341.721756 | ||
https://hackaday.com/2023/04/05/how-tattoos-interact-with-the-immune-system-could-have-impacts-for-vaccines/ | How Tattoos Interact With The Immune System Could Have Impacts For Vaccines | Lewin Day | [
"Current Events",
"Featured",
"Interest",
"Medical Hacks",
"Science",
"Slider"
] | [
"immune",
"immune system",
"immunology",
"ink",
"macrophage",
"macrophages",
"tattoo",
"vaccine"
] | Tattoos are an interesting technology. They’re a way of marking patterns and designs on the skin that can last for years or decades. All this, despite the fact that our skin sloughs off on a regular basis!
As it turns out, tattoos actually have a deep and complex interaction with our immune system, which hold some of t... | 40 | 19 | [
{
"comment_id": "6629482",
"author": "Arya Voronova",
"timestamp": "2023-04-05T14:13:59",
"content": "oh that’s fascinating, thank you",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6629483",
"author": "Ostracus",
"timestamp": "2023-04-05T14:... | 1,760,372,341.457882 | ||
https://hackaday.com/2023/04/05/classic-film-camera-goes-digital-with-game-boy-tech/ | Classic Film Camera Goes Digital With Game Boy Tech | Robin Kearey | [
"digital cameras hacks",
"Nintendo Game Boy Hacks"
] | [
"cmos image sensor",
"film camera",
"game boy camera",
"Holga"
] | Despite having been technologically obsolete for a decade or two, analog photography is still practiced by hobbyists and artists to achieve a particular aesthetic. One might imagine a similar thing happening with early digital cameras, and indeed it has: the Game Boy Camera has seen use in dozens of projects. [Michael ... | 8 | 3 | [
{
"comment_id": "6629607",
"author": "Hirudinea",
"timestamp": "2023-04-05T21:26:46",
"content": "Wouldn’t it be simpler to just use a Pi camera module, I mean from a supply point, GameBoy cameras have to be getting rare?",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,372,341.776772 | ||
https://hackaday.com/2023/04/05/a-nor-gate-for-an-alu/ | A NOR Gate For An ALU? | Jenny List | [
"computer hacks"
] | [
"ALU",
"discrete cpu",
"forth",
"NOR-gate"
] | If you know anything about he design of a CPU, you’ll probably be able to identify that a critical component of all CPUs is the Arithmetic Logic Unit, or ALU. This is a collection of gates that can do a selection of binary operations, and which depending on the capabilities of the computer, can be a complex component. ... | 18 | 8 | [
{
"comment_id": "6629441",
"author": "Nowhere",
"timestamp": "2023-04-05T09:13:05",
"content": "“It’s a surprise then to find that a working CPU can be made with just a single NOR gate”Typo. s/CPU/AlU/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6629447",... | 1,760,372,341.901647 | ||
https://hackaday.com/2023/04/04/upgrade-your-voodoo-with-more-memory/ | Upgrade Your Voodoo With More Memory | Al Williams | [
"Retrocomputing"
] | [
"3dfx",
"piggyback",
"vga"
] | In 1996, the 3Dfx VooDoo VGA chipset changed computer graphics forever. Because of the high cost of memory, most of the boards had only 4 MB of memory — which seemed a lot back then. However, the chipset could actually handle up to 8 MB. [Bits and Bolts] couldn’t stand that his board only had 4 MB, so he did what any g... | 23 | 10 | [
{
"comment_id": "6629414",
"author": "big F",
"timestamp": "2023-04-05T06:35:37",
"content": "This got me thinking, how many old things that use memory do I have that could actually run more ram than the manufacturer deemed it necessary to fit. All those memory controllers and chip sets not living ... | 1,760,372,341.837154 | ||
https://hackaday.com/2023/04/04/reshoring-vacuum-tube-manufacturing-one-tube-at-a-time/ | Reshoring Vacuum Tube Manufacturing, One Tube At A Time | Dan Maloney | [
"Parts"
] | [
"12AX7",
"300B",
"amplifier",
"audiophile",
"guitar",
"thermionic",
"triode",
"vacuum tube",
"valves"
] | For most of us, vacuum tubes haven’t appeared in any of our schematics or BOMs in — well, ever. Once mass-manufacturing made reliable transistors cheap enough for hobbyists, vacuum tubes became pretty passe, and it wasn’t long before the once mighty US tube industry was decimated, leaving the few remaining tube enthusi... | 64 | 18 | [
{
"comment_id": "6629369",
"author": "Paul",
"timestamp": "2023-04-05T02:25:28",
"content": "So, now, who’s going to re-shore audio transformer manufacturing?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6629380",
"author": "Miroslav",
"tim... | 1,760,372,342.065171 | ||
https://hackaday.com/2023/04/04/xiaomi-scooter-firmware-hacking-gets-hands-on/ | Xiaomi Scooter Firmware Hacking Gets Hands-On | Arya Voronova | [
"Security Hacks",
"Transportation Hacks"
] | [
"electric scooter",
"escooter",
"firmware hacking",
"Firmware modding",
"scooter",
"scooter hacking",
"xiaomi"
] | Scooter hacking is wonderful – you get to create a better scooter from a pre-made scooter platform, and sometimes you can do that purely through firmware modifications. Typically, hackers have been uploading firmware using Bluetooth OTA methods, and at some point, we’ve seen the always-popular Xiaomi scooters starting ... | 18 | 4 | [
{
"comment_id": "6629354",
"author": "casainho",
"timestamp": "2023-04-05T00:55:03",
"content": "I think the best way is to replace the motor controller with VESC + DIY board with ESP32 running a Python firmware to implement the EScooter logic application. Also, add own DIY display with another ESP3... | 1,760,372,341.964646 | ||
https://hackaday.com/2023/04/04/3d-printed-post-modern-grandfather-clock/ | 3D Printed Post Modern Grandfather Clock | Matthew Carlson | [
"3d Printer hacks",
"clock hacks"
] | [
"3d print",
"anchor escapement",
"grandfather clock",
"modern"
] | Projects can often spiral, not down or up, but out. For [Derek] he started playing around with a 3D printed escapement mechanism and thought it was a wonderful bit of engineering. But with a simple drum and weight, it only had a runtime of a few minutes. What started as a simple “can I make it run longer”
spiraled into... | 18 | 9 | [
{
"comment_id": "6629255",
"author": "craig",
"timestamp": "2023-04-04T20:09:19",
"content": "Very cool proof of concept but 100 minutes of run time? We have a not even fancy cucko clock from Germany that uses weights and runs for several days, would be a week maybe if we mounted it higher up (the w... | 1,760,372,342.223642 | ||
https://hackaday.com/2023/04/04/silkscreen-busy-put-labels-inside-pads/ | Silkscreen Busy? Put Labels Inside Pads | Arya Voronova | [
"PCB Hacks"
] | [
"gerber",
"text-in-pad"
] | When making a PCB informative and self-documenting, there’s often just not enough space to silkscreen all the labels you want, and slowly but surely, you collect a set of tricks: using different through-hole pad shapes to denote ground or power pins, standardized pinouts for connectors, your own signal name shortening ... | 21 | 13 | [
{
"comment_id": "6629251",
"author": "Nik",
"timestamp": "2023-04-04T20:00:19",
"content": "I remember I saw marking flags look like resisitors, but just a wire with PVC labels soldered into PCB.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6629267",
"au... | 1,760,372,342.123709 | ||
https://hackaday.com/2023/04/04/supercon-2022-chris-combs-reveals-his-art-world-compatibility-layer/ | Supercon 2022: Chris Combs Reveals His Art-World Compatibility Layer | Anool Mahidharia | [
"cons",
"Hackaday Columns",
"Slider"
] | [
"2022 Hackaday Supercon",
"art",
"Hackaday Supercon",
"Supercon 2022",
"supercon video"
] | [Chris Combs] is a full time artist who loves using technology to create unique art projects and has been building blinky artwork since about a decade now. In his 2022 Supercon talk “
Art-World Compatibility Layer: How to Hang and Sell Your Blinky Goodness as Art
” (Slides, PDF), [Chris] takes us behind the scenes and ... | 12 | 7 | [
{
"comment_id": "6629210",
"author": "Myself",
"timestamp": "2023-04-04T17:54:06",
"content": "It may also help to familiarize yourself with the vocabulary of art-wankery, better known as International Art English. There’s a fantastic article by that name (and various rebuttals to it), which are wor... | 1,760,372,342.170353 | ||
https://hackaday.com/2023/04/04/new-expansion-module-brings-standard-slots-to-ancient-laptop/ | New Expansion Module Brings Standard Slots To Ancient Laptop | Robin Kearey | [
"laptops hacks",
"Retrocomputing"
] | [
"expansion card",
"ISA slot",
"laptop",
"Sharp PC-4600"
] | Upgrading and repairing vintage laptops is often a challenge — even if their basic hardware is compatible with ordinary PCs, they often use nonstandard components and connectors due to space constraints. The Sharp PC-4600 series from the late 1980s is a case in point: although it comes with standard serial and parallel... | 10 | 4 | [
{
"comment_id": "6629194",
"author": "Arya Voronova",
"timestamp": "2023-04-04T16:58:02",
"content": "as a long-term reader of Hackaday, I highly recommend also reading the article. if it helps, you have to scroll down from where the headline is.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,372,342.275576 | ||
https://hackaday.com/2023/04/04/the-liquid-trees-of-belgrade-the-facts-behind-the-furore/ | The Liquid Trees Of Belgrade: The Facts Behind The Furore | Lewin Day | [
"Current Events",
"Featured",
"Interest",
"Science",
"Slider"
] | [
"air pollution",
"algae",
"bioreactor",
"carbon dioxide",
"climate change",
"microalgae",
"pollution"
] | Historically, nature has used trees to turn carbon dioxide back into oxygen for use by living creatures. The trees play a vital role in the carbon cycle, and have done so for millennia. Recently, humans have thrown things off a bit by getting rid of lots of trees and digging up a lot more carbon.
While great efforts ar... | 126 | 27 | [
{
"comment_id": "6629150",
"author": "jpa",
"timestamp": "2023-04-04T14:16:56",
"content": "No analysis of the CO2 released during manufacturing? I’ll pull my own numbers then, 1-2 tons of CO2 during manufacturing seems reasonable estimate, and maybe 100 kg captured per year. So let’s hope these are... | 1,760,372,342.659901 | ||
https://hackaday.com/2023/04/04/open-source-faceid-with-realsense/ | Open-Source FaceID With RealSense | Arya Voronova | [
"Linux Hacks",
"Software Hacks"
] | [
"depth camera",
"depth sensing",
"face recognition",
"Intel RealSense",
"Realsense"
] | RealSense cameras have been a fascinating piece of tech from Intel — we’ve seen a number of cool applications in the hacker world, from robots to smart appliances. Unfortunately Intel did discontinue parts of the RealSense lineup at one point, specifically the LiDAR and face tracking-tailored models. Apparently, these ... | 6 | 3 | [
{
"comment_id": "6629128",
"author": "sweethack",
"timestamp": "2023-04-04T12:42:35",
"content": "PAM is an archaic system that should die as soon as possible. It was made by and for mad scientists, without a single active neuron. Since its inception 40 years ago, it’s still not able to propose 2 si... | 1,760,372,342.495465 | ||
https://hackaday.com/2023/04/04/cp-m-6502-style/ | CP/M 6502-Style | Al Williams | [
"Retrocomputing"
] | [
"6502",
"CP/M",
"retrocomputing"
] | There are projects you create to share with the world, but there are also those you do just because you want something for yourself. Lucky for us, [Dietrich-L]’s 30-year-long project to create
CPM-65
, a CP/M-like OS for the 6502, has become both.
[Dietrich-L] does admit that the documentation is “sparse” and “for my p... | 8 | 4 | [
{
"comment_id": "6629094",
"author": "jalnl",
"timestamp": "2023-04-04T08:52:57",
"content": "“Apparently, the system uses some low memory which necessitated the relocation” – Erm, no, it’s a 6502, so the first 256 bytes is the zero page, and the second 256 bytes is the stack :D.",
"parent_id": ... | 1,760,372,342.707139 | ||
https://hackaday.com/2023/04/03/truly-flexible-circuits-are-a-bit-of-a-stretch/ | Truly Flexible Circuits Are A Bit Of A Stretch | Michael Shaub | [
"hardware",
"News"
] | [
"conductive ink",
"flexible PCB",
"material science",
"panasonic",
"stretchable",
"University of Coimbra"
] | Flexible PCBs have become increasingly common in both commercial devices and DIY projects, but
Panasonic’s new stretchable, clear substrate for electrical circuits called Beyolex
takes things a step further. The material is superior to existing stretchable films like silicone, TPU, or PDMS due to its high heat toleranc... | 5 | 4 | [
{
"comment_id": "6629108",
"author": "John7",
"timestamp": "2023-04-04T10:36:23",
"content": "Disco era is soo coming back !!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6629168",
"author": "macsimski",
"timestamp": "2023-04-04T15:02:55",
"conte... | 1,760,372,342.751649 | ||
https://hackaday.com/2023/04/03/machine-learning-helps-electron-microscopy/ | Machine Learning Helps Electron Microscopy | Al Williams | [
"Machine Learning",
"Science"
] | [
"electron microscope",
"machine learning",
"stem"
] | Machine learning is supposed to help us do everything these days, so why not electron microscopy? A team from Ireland has done just that and published their results
using machine learning to enhance STEM
— scanning transmission electron microscopy. The result is important because it targets a very particular use case —... | 8 | 4 | [
{
"comment_id": "6629047",
"author": "𐂀 𐂅",
"timestamp": "2023-04-04T03:22:21",
"content": "I wouldn’t call that an image enhancement as much as an image interpretation or analysis, it is the “opinion” of the neural network.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,342.943414 | ||
https://hackaday.com/2023/04/03/an-ultra-low-power-dash-cam/ | An Ultra Low Power Dash Cam | Matthew Carlson | [
"Arduino Hacks",
"car hacks"
] | [
"arduino",
"dash cam",
"low power",
"power regul"
] | Dash cameras are handy as they provide a video recording of interactions on the road. However, their utility comes from the fact that they are always recording while driving. This always-on means power draw. [Kuzysk] took it upon himself to
cut that power draw by a factor of almost 70x
.
He found his existing dash cam ... | 19 | 9 | [
{
"comment_id": "6629000",
"author": "Steve",
"timestamp": "2023-04-03T23:36:10",
"content": "Got a broken link to instructables.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6629004",
"author": "Truth",
"timestamp": "2023-04-03T23:45:02",
"conte... | 1,760,372,342.895781 | ||
https://hackaday.com/2023/04/03/server-network-cards-made-extra-cool/ | Server Network Cards Made Extra Cool | Arya Voronova | [
"computer hacks"
] | [
"pci",
"pci express",
"PCI-E",
"PCIe"
] | Using cheap and powerful server expansion cards in your desktop builds is a tempting option for many hackers. Of course, they don’t always fit mechanically or work perfectly; for instance, some server-purpose cards are designed for intense amounts of cooling that servers come with, and will overheat inside a relatively... | 25 | 11 | [
{
"comment_id": "6628959",
"author": "philosiraptor117",
"timestamp": "2023-04-03T21:15:06",
"content": "this thing blows.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6628988",
"author": "Flawless",
"timestamp": "2023-04-03T22:58:15",
... | 1,760,372,343.006517 | ||
https://hackaday.com/2023/04/03/a-compact-camera-running-linux-whats-not-to-like/ | A Compact Camera Running Linux? What’s Not To Like! | Jenny List | [
"digital cameras hacks"
] | [
"linux",
"samsung",
"samsung NX"
] | One of the devices swallowed up by the smartphone for the average person is the handheld camera, to the extent that the youngsters are reported to be now rediscovering 20-year-old digital cameras for their retro cool factor. Cameras aren’t completely dead though, as a mirrorless compact or a DSLR should still blow the ... | 25 | 10 | [
{
"comment_id": "6628925",
"author": "Nik",
"timestamp": "2023-04-03T19:05:59",
"content": "Can it run DOOM?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6629038",
"author": "Corom",
"timestamp": "2023-04-04T01:42:35",
"content": "T... | 1,760,372,343.071609 | ||
https://hackaday.com/2023/04/03/largest-ever-hydrogen-fuel-cell-plane-takes-flight/ | Largest Ever Hydrogen Fuel Cell Plane Takes Flight | Lewin Day | [
"Hackaday Columns",
"Science",
"Slider"
] | [
"flight",
"fuel cell",
"fuel cells",
"hydrogen",
"hydrogen fuel cell"
] | In the automotive world, batteries are quickly becoming the energy source of the future. For heavier-duty tasks, though, they simply don’t cut the mustard. Their energy density, being a small fraction of that of liquid fuels, just can’t get the job done. In areas like these, hydrogen holds some promise as a cleaner fue... | 72 | 11 | [
{
"comment_id": "6628905",
"author": "Dude",
"timestamp": "2023-04-03T17:36:30",
"content": ">Hydrogen may be energy dense when it comes to weight, but by volume, it’s only a quarter as dense as jet fuel.Liquid hydrogen, that is. It raises the question, how do you keep the fuel pods filled up and wa... | 1,760,372,343.181717 | ||
https://hackaday.com/2023/04/03/pieeg-offers-affordable-brain-computer-interface/ | PiEEG Offers Affordable Brain-Computer Interface | Tom Nardi | [
"Peripherals Hacks",
"Raspberry Pi"
] | [
"biosignals",
"brain-computer interface",
"eeg"
] | One day in the future, we may interact with our electronic devices not with physical input or even voice commands, but simply by thinking about what we want to do. Such brain–computer interfaces (BCIs), combined with machine learning, could allow us to turn our ideas into reality faster and with less effort than ever b... | 13 | 8 | [
{
"comment_id": "6628899",
"author": "Matt",
"timestamp": "2023-04-03T16:48:57",
"content": "On the overall subject of a brain-computer interface, while this has the potential to provide all manner of benefits, particularly for disabled people, I have no doubt that there will be some requirement to ... | 1,760,372,343.231319 | ||
https://hackaday.com/2023/04/03/self-healing-concrete-what-ancient-roman-concrete-can-teach-us/ | Self-Healing Concrete: What Ancient Roman Concrete Can Teach Us | Maya Posch | [
"Engineering",
"Featured",
"Interest",
"Science",
"Slider"
] | [
"cement",
"concrete",
"roman concrete"
] | Concrete is an incredibly useful and versatile building material on which not only today’s societies, but also the ancient Roman Empire was built. To this day
Roman concrete
structures can be found in mundane locations such as harbors, but also the
Pantheon
in Rome, which to this day forms the largest unreinforced conc... | 30 | 11 | [
{
"comment_id": "6628870",
"author": "PeteSahat",
"timestamp": "2023-04-03T14:08:53",
"content": "Never heard of carbon carbonate…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6628885",
"author": "Art Mezins",
"timestamp": "2023-04-03T15:37... | 1,760,372,343.304377 |
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