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|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2024/07/25/end-of-an-era-sony-cuts-production-of-writable-optical-media/ | End Of An Era: Sony Cuts Production Of Writable Optical Media | Lewin Day | [
"Featured",
"Interest",
"News",
"Original Art"
] | [
"blu-ray",
"cd",
"CD-R",
"dvd",
"dvd-r",
"dvdr",
"optical media"
] | The 1990s saw a revolution occur, launched by the CD burner. As prices of writeable media and drives dropped, consumers rushed to duplicate games, create their own mix CDs, and backup their data on optical disc. It was a halcyon time.
Fast forward to today, and we’re very much on downward curve when it comes to optical... | 64 | 14 | [
{
"comment_id": "6779454",
"author": "clancydaenlightened",
"timestamp": "2024-07-25T14:40:20",
"content": "Well just like cdr and dvdrSomeone else still makes them",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6779468",
"author": "Dan",
"timestamp": ... | 1,760,371,844.766497 | ||
https://hackaday.com/2024/07/25/retro-inspired-cyberdeck-scrolls-around-cyberspace/ | Retro Inspired Cyberdeck Scrolls Around Cyberspace | Tom Nardi | [
"Cyberdecks",
"Peripherals Hacks"
] | [
"cyberdeck",
"Raspberry Pi Zero",
"rotary encoder",
"scroll wheel"
] | It’s difficult to nail down exactly what counts as a “real” cyberdeck in this brave new era of bespoke computing. But at the minimum, most in the community would agree that a proper deck should have a non-traditional form factor, and be designed to meet the unique needs of the builder. If you’re looking for a fantastic... | 24 | 11 | [
{
"comment_id": "6779429",
"author": "Foldi-One",
"timestamp": "2024-07-25T12:21:47",
"content": "This thing seems pretty darn neat, somewhere between a calculator, portable terminal and just a regular computer… I can see something like that sitting on my desk and even though I hate those little key... | 1,760,371,844.503821 | ||
https://hackaday.com/2024/07/25/pnut-a-self-compiling-c-transpiler-targeting-human-readable-posix-shell/ | Pnut: A Self-Compiling C Transpiler Targeting Human-Readable POSIX Shell | Maya Posch | [
"Software Development"
] | [
"shell scripting",
"transpiler"
] | Shell scripting is one of those skills that are absolutely invaluable on especially UNIX and BSD-based systems like the BSDs, the two zillion Linux distributions as well as MacOS. Yet not every shell is the same, and not everybody can be bothered to learn the differences between the sh, bash, ksh, zsh, dash, fish and o... | 16 | 9 | [
{
"comment_id": "6779392",
"author": "Sravdar",
"timestamp": "2024-07-25T08:12:46",
"content": "This looks pretty usefull. Would be extra usefull If it were to compile into windows shell scripts as well.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6779459... | 1,760,371,844.554484 | ||
https://hackaday.com/2024/07/24/hacking-an-iot-camera-reveals-hard-coded-root-password/ | Hacking An IoT Camera Reveals Hard-Coded Root Password | Dan Maloney | [
"Security Hacks"
] | [
"Binwalk",
"boot",
"camera",
"firmware",
"Ghidra",
"hash",
"IoT",
"ip address",
"linux",
"root",
"strings",
"uboot"
] | Hacking — at least the kind where you’re breaking into stuff — is very much a learn-by-doing skill. There’s simply no substitute for getting your hands dirty and just trying something. But that doesn’t mean you can’t learn something by watching, with
this root password exploit on a cheap IP video camera
being a good lo... | 24 | 7 | [
{
"comment_id": "6779379",
"author": "Reformed Astronomer",
"timestamp": "2024-07-25T06:23:31",
"content": "Not unexpected … The only cheap camera I have was found to have telnet ports open and a hardcoded root password – it was blank. it accepts a change via passed, until reboot when it becomes b... | 1,760,371,844.295339 | ||
https://hackaday.com/2024/07/24/manually-computing-logarithms-to-grok-calculators/ | Manually Computing Logarithms To Grok Calculators | Maya Posch | [
"Science",
"Software Development"
] | [
"logarithm",
"mathematics"
] | Logarithms are everywhere in mathematics and derived fields, but we rarely think about how trigonometric functions, exponentials, square roots and others are calculated after we punch the numbers into a calculator of some description and hit ‘calculate’. How do we even know that the answer which it returns is remotely ... | 20 | 8 | [
{
"comment_id": "6779341",
"author": "David",
"timestamp": "2024-07-25T02:13:46",
"content": "My high school math teacher taught how to calculate logs and trig functions using various series. I don’t remember anything about optimization though.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,371,844.394563 | ||
https://hackaday.com/2024/07/24/a-lenticular-clock-spells-out-the-hours/ | A Lenticular Clock Spells Out The Hours | Jenny List | [
"clock hacks"
] | [
"clock",
"display",
"lenticular display"
] | So many are the clock projects which cross the Hackaday threshold, that it’s very rare indeed to see something that hasn’t already been done. We think we’ve not seen a lenticular clock before though, and we’re thus impressed by
this one produced by [Moritz Sivers]
.
You may well be familiar with lenticular images from ... | 1 | 1 | [
{
"comment_id": "6779381",
"author": "Jan",
"timestamp": "2024-07-25T06:50:40",
"content": "cool, very cool concept… but not without issues.In fairy tales this all works fine, but in real life Snow White will read a different time value than the dwarfs.",
"parent_id": null,
"depth": 1,
"... | 1,760,371,844.140603 | ||
https://hackaday.com/2024/07/24/a-puzzle-for-the-visually-impaired-or-blindfolded/ | A Puzzle For The Visually Impaired, Or Blindfolded | Kristina Panos | [
"Games"
] | [
"3d printing",
"puzzle",
"visually impaired"
] | There’s no reason why a visually impaired person can’t enjoy putting together a jigsaw puzzle. It just needs to look a little different.
Or, in this case, feel different
.
16-year-old [feazellecw] has come up with just the solution — a puzzle with pieces that have both a defining texture and a slant in the z-height to ... | 8 | 5 | [
{
"comment_id": "6779259",
"author": "Antoni",
"timestamp": "2024-07-24T20:55:09",
"content": "meybe put transistor, battery, led and other electronic stuff and make a circuit electronic?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6779295",
"author": "... | 1,760,371,844.340533 | ||
https://hackaday.com/2024/07/24/floss-weekly-episode-793-keeping-an-eye-on-things-with-hilight-io/ | FLOSS Weekly Episode 793: Keeping An Eye On Things With Hilight.io | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts"
] | [
"FLOSS Weekly",
"Highlight.io",
"Monitoring"
] | This week Jonathan Bennett and
Aaron Newcomb
chat with
Jay Khatri
, the co-founder of
Highlight.io
. That’s a web application monitoring tool that can help you troubleshoot performance problems, find bugs, and improve experiences for anything that runs in a browser or browser-like environment. Why did they opt to make ... | 0 | 0 | [] | 1,760,371,844.435438 | ||
https://hackaday.com/2024/07/24/supercon-2023-jesse-t-gonzalez-makes-circuit-boards-that-breathe-and-bend/ | Supercon 2023: Jesse T. Gonzalez Makes Circuit Boards That Breathe And Bend | Lewin Day | [
"cons",
"Hackaday Columns"
] | [
"2023 Hackaday Supercon",
"pcbs",
"printed circuit boards",
"robot",
"robots",
"valves"
] | Most robots are built out of solid materials like metal and plastic, giving them rigid structures that are easy to work with and understand. But you can open up much wider possibilities if you explore alternative materials and construction methods. As it turns out, that’s precisely what [Jesse T. Gonzalez] specializes ... | 5 | 5 | [
{
"comment_id": "6779158",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-24T17:35:18",
"content": "That reminds me of the guy who remodeled his apartment in the style of Enterprise 1701D.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "... | 1,760,371,844.230986 | ||
https://hackaday.com/2024/07/24/exploring-soap-films/ | Exploring Soap Films | Al Williams | [
"Art",
"Science"
] | [
"fluid dynamics",
"science project",
"soap"
] | While fluid dynamics sounds like a dull topic,
SoapFilmScope
promises to make it fun by using your cell phone to observe the interactions between sound waves and liquid membranes. You can make your own with some PVC pipe, some 3D-printed attachments, a speaker, and a few other odds and ends.
If your PVC pipe doesn’t ma... | 3 | 3 | [
{
"comment_id": "6779143",
"author": "Cheese Whiz",
"timestamp": "2024-07-24T16:35:15",
"content": "“While fluid dynamics sounds like a dull topic,”Speak for yourself! =P",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6779161",
"author": "The Commenter For... | 1,760,371,844.183668 | ||
https://hackaday.com/2024/07/24/the-rise-of-the-disappearing-polymorphs/ | The Rise Of The Disappearing Polymorphs | Lewin Day | [
"Featured",
"Original Art",
"Science"
] | [
"chemical engineering",
"disappearing polymorphs",
"drug",
"drugs",
"medicine",
"paroxetine",
"paroxetine hydrochloride",
"pharmaceutical",
"pharmaceuticals",
"ritonavir"
] | Science and engineering usually create consistent results. Generally, when you figure out how to make something, you can repeat that at will to make
more
of something. But what if, one day, you ran the same process, and got different results? You double-checked, and triple-checked, and you kept ending up with a differe... | 40 | 17 | [
{
"comment_id": "6779105",
"author": "garberPark",
"timestamp": "2024-07-24T14:26:34",
"content": "I never knew. Brilliant and shocking. This is why HAD is must reading!!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6779728",
"author": "12L14",
... | 1,760,371,844.854389 | ||
https://hackaday.com/2024/07/24/is-it-time-for-synthetic-diamonds-to-shine/ | Is It Time For Synthetic Diamonds To Shine? | Kristina Panos | [
"chemistry hacks"
] | [
"chemical vapor deposition",
"diamond",
"lab-grown diamond",
"synthetic diamond"
] | The process of creating a diamond naturally takes between 1 and 3.3 billion years. Conversely, a lab-grown diamond can now be created in 150 minutes. But despite being an ethical and environmentally-friendly alternative to the real thing, the value of lab-grown diamonds has plummeted in recent years. Manufacturers are ... | 38 | 10 | [
{
"comment_id": "6779058",
"author": "Tom",
"timestamp": "2024-07-24T11:29:44",
"content": "It’s not that surprising that synthetic diamonds aren’t comparable in value to naturally-occurring ones. When the main quality of something is its rarity, saying “Hey, look, these are just as good but not as... | 1,760,371,844.986845 | ||
https://hackaday.com/2024/07/24/tiny-games-challenge-a-retro-racing-game-on-a-16x2-lcd/ | Tiny Games Challenge: A Retro Racing Game On A 16×2 LCD | Dan Maloney | [
"contests"
] | [
"16x2",
"2024 Tiny Games Challenge",
"lcd",
"racer",
"sprite"
] | Sometimes, all it takes is a change in perspective to take something boring and make it fun. That’s true about 16×2 LCD; in its usual landscape format, it’s a quick and easy way to provide a character-based display for a project. But flip it 90 degrees and use a little imagination, and it can become
a cool retro racing... | 9 | 5 | [
{
"comment_id": "6779065",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-24T11:55:31",
"content": "Tetris?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6779291",
"author": "Eric",
"timestamp": "2024-07-24T22:23:35",... | 1,760,371,844.900705 | ||
https://hackaday.com/2024/07/23/need-a-tube-reach-for-plywood/ | Need A Tube? Reach For Plywood! | Al Williams | [
"classic hacks"
] | [
"plywood",
"woodworking"
] | To be clear, when we are talking about tubes, we mean ordinary cylinders, not vacuum-amplifying elements. With that out of the way, when we need a tube like that, we usually think of PVC or some other kind of pipe product. Or maybe we’ll 3D print what we need. But not [GregO29]. He made his tubes
from plywood
.
You can... | 14 | 8 | [
{
"comment_id": "6778997",
"author": "Chris",
"timestamp": "2024-07-24T05:27:34",
"content": "Looks like he used regular thin plywood. There are special plywoods available for bending. The grain in all layers runs in the same direction, instead of alternating perpendicular layers.",
"parent_id":... | 1,760,371,845.086583 | ||
https://hackaday.com/2024/07/23/colour-film-processing-for-the-2020s-hacker/ | Colour Film Processing For The 2020s Hacker | Jenny List | [
"chemistry hacks"
] | [
"colour film",
"film",
"film photography"
] | We’re now somewhere over two decades since the mass adoption of digital photography made chemical film obsolete in a very short time, but the older technology remains in use by artists and enthusiasts. There’s no longer a speedy developing service at you local mall though, so unless you don’t mind waiting for one of th... | 17 | 6 | [
{
"comment_id": "6778990",
"author": "Jouni",
"timestamp": "2024-07-24T04:32:35",
"content": "Developing and digitalizing color film has been done by hobbyist millions of times. It’s pretty straight forward process and doesn’t contain any “secrets”. Even the chemicals today are pretty forgiving, qui... | 1,760,371,845.141903 | ||
https://hackaday.com/2024/07/23/workholding-options-for-the-beginner-cnc-operator/ | Workholding Options For The Beginner CNC Operator | Navarre Bartz | [
"cnc hacks"
] | [
"adhesive",
"clamp",
"cnc",
"cnc clamp",
"cnc workpiece clamp",
"Cutting and Machining",
"cyanoacrylate",
"glue",
"masking",
"superglue",
"tape",
"toe clamp",
"work fixing",
"workholding"
] | Designing a file to cut on a CNC is only part of the process. You also have to keep it in place while the machine does its work. [G
arrett Fromme
] walks us through
five different work holding techniques
.
Since every project is different and stock material can vary from thin veneer to much larger pieces, there’s no on... | 6 | 4 | [
{
"comment_id": "6779003",
"author": "jpa",
"timestamp": "2024-07-24T06:01:46",
"content": "If you need cutting from multiple sides of an object, cutting a jig in some scrap piece is very helpful. You can mill exactly the shape and size of the first side and the XYZ origin will be accurately in plac... | 1,760,371,845.038532 | ||
https://hackaday.com/2024/07/23/automatic-garbage-can-keeps-cooking-cleaner/ | Automatic Garbage Can Keeps Cooking Cleaner | Bryan Cockfield | [
"home hacks"
] | [
"automation",
"distance sensor",
"garbage bin",
"garbage can",
"home automation",
"infrared",
"mircontroller",
"servo",
"ultrasonic"
] | Over the last decade or so, we’ve been inundated with appliances with wireless or “smart” technology that is often of dubious utility. No one really needs a tablet in their refrigerator or Wi-Fi on their coffee maker. A less glamorous kitchen appliance that actually might benefit from some automation and connectivity i... | 30 | 12 | [
{
"comment_id": "6778903",
"author": "BT",
"timestamp": "2024-07-23T20:09:02",
"content": "“nothing…overly complicated”Here in the UK we have had “pedal bins” since about 1950 so you don’t have to touch the lid.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,371,845.20832 | ||
https://hackaday.com/2024/07/23/2024-tiny-games-challenge-improving-reaction-time/ | 2024 Tiny Games Challenge: Improving Reaction Time | Kristina Panos | [
"contests",
"Games"
] | [
"2024 Tiny Games Challenge",
"ESP32",
"reaction time"
] | What lies at the heart of many games? In a sense, it’s your response time, which is a function of hand-eye coordination. Although the 2024 Business Card Challenge has come to a close, [gokux] tends to go small anyway, and has taken their miniature approach to the Tiny Games Challenge with
this awesome little reaction t... | 3 | 2 | [
{
"comment_id": "6779005",
"author": "Sebastius",
"timestamp": "2024-07-24T06:24:48",
"content": "I love this game! Might actually duplicate it someday (and also make a large scale version with big buttons, not sure yet).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comme... | 1,760,371,845.252055 | ||
https://hackaday.com/2024/07/23/keebin-with-kristina-the-one-with-the-key-cap-map/ | Keebin’ With Kristina: The One With The Key Cap Map | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"Artsey",
"Artsey layout",
"key cap map",
"key cap world map",
"key caps",
"nicenano",
"vacuum forming",
"Zerograph"
] | So, [zyumbik]’s trademark seems to be sexing things up, and the Artsey layout did not escape their gaze.
This is the Sexy Artsey
. Let’s back up a bit.
Image by [zyumbik] via
reddit
Artsey
is a keyboard layout for chording, and this keyboard is built for it. It’s a one-handed keyboard meant for pressing multiple keys a... | 5 | 4 | [
{
"comment_id": "6778860",
"author": "John",
"timestamp": "2024-07-23T17:49:58",
"content": "Zerograph Not sure I read this correctly, but the description of using a pendulum on the transmitting end and a matched pendulum on the receiving end as a clock signal with the data transmission (character d... | 1,760,371,845.329731 | ||
https://hackaday.com/2024/07/23/could-carbon-fiber-be-the-new-asbestos/ | Could Carbon Fiber Be The New Asbestos? | Maya Posch | [
"Science"
] | [
"asbestos",
"carbon fiber"
] | Could carbon fiber inflict the same kind of damage on the human body as asbestos? That’s the question which [Nathan] found himself struggling with
after taking a look
at carbon fiber-reinforced filament under a microscope, revealing a sight that brings to mind fibrous asbestos samples. Considering the
absolutely horrif... | 54 | 23 | [
{
"comment_id": "6778814",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-23T16:08:37",
"content": "Rats!Now I need to cancel my order for the Koenigsegg!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6778829",
"author": "Jon Mayo"... | 1,760,371,845.430585 | ||
https://hackaday.com/2024/07/23/you-can-use-leds-as-sensors-too/ | You Can Use LEDs As Sensors, Too | Lewin Day | [
"Featured",
"LED Hacks",
"News"
] | [
"forrest mims",
"led",
"led as a sensor",
"led sensor",
"light sensor",
"microcontroller",
"op-amp",
"photodiode",
"photosensor",
"sensor"
] | LEDs are a wonderful technology. You put in a little bit of power, and you get out a wonderful amount of light. They’re efficient, cheap, and plentiful. We use them for so much!
What you might not have known is that these humble components have a secret feature, one largely undocumented in the datasheets. You can use a... | 69 | 35 | [
{
"comment_id": "6778777",
"author": "paulvdh",
"timestamp": "2024-07-23T14:18:17",
"content": "Do remember here that this is an unspecified and untested property of LED’s. Some do work quite well as light sensors, while others do not work at all as light sensors, even when they are just a bare die ... | 1,760,371,846.433895 | ||
https://hackaday.com/2024/07/23/photoresistor-based-single-pixel-camera/ | Photoresistor-based Single Pixel Camera | Alexander Rowsell | [
"digital cameras hacks"
] | [
"alt-azimuth",
"ESP32",
"numpy",
"Pandas",
"photoresistor",
"python",
"servo",
"single pixel camera"
] | [Hugh] has been going back through episodes of the Hackaday podcast, and Elliot mentioned in episode 67 that it can often be inspiring to go back through the archives of Hackaday to find ideas for new projects. Well, he did just that and came across a single-pixel camera made using an infrared photodiode. He decided to... | 18 | 10 | [
{
"comment_id": "6778746",
"author": "Joshua",
"timestamp": "2024-07-23T11:39:22",
"content": "photo‐elektrischer bildabtaster?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6778757",
"author": "Emrah özmen",
"timestamp": "2024-07-23T12:37:31",
"c... | 1,760,371,845.541724 | ||
https://hackaday.com/2024/07/23/brain-implant-uses-graphene-instead-of-metal-probes/ | Brain Implant Uses Graphene Instead Of Metal Probes | Maya Posch | [
"Science"
] | [
"brain implants",
"brain-computer interface"
] | Implantable electrodes for the (human) brain have been around for a many decades in the form of Utah arrays and kin, but these tend to be made out of metal, which can cause issues when stimulating the surrounding neurons with an induced current. This is due to faradaic processes between the metal probe and an electroly... | 7 | 3 | [
{
"comment_id": "6778741",
"author": "Joshua",
"timestamp": "2024-07-23T10:58:20",
"content": "Interesting. It’s a start, I think. I had to sigh when I read “a company” though.I hope it’s not again some commercial venture that closes its doors soon and then leave patients (test subjects) on their ow... | 1,760,371,845.59317 | ||
https://hackaday.com/2024/07/22/exploring-cheap-tantalum-caps-of-mysterious-provenance/ | Exploring Cheap Tantalum Caps Of Mysterious Provenance | Dan Maloney | [
"Parts"
] | [
"AliExpress",
"capacitor",
"digi-key",
"equivalent series resistance",
"ESR",
"LCSC",
"mouser",
"parts",
"surplus",
"tantalum"
] | We’ve all heard about the perils of counterfeit chips, and more than a few of us have probably been bitten by those scruple-free types who run random chips through a laser marker and foist them off as something they’re not. Honestly, we’ve never understood the business model here — it seems like the counterfeiters spen... | 27 | 10 | [
{
"comment_id": "6778720",
"author": "C",
"timestamp": "2024-07-23T08:15:17",
"content": "I once had a cheap Arduino Mega board with a tantalum input capacitor. I plugged in a heavy duty DC power supply. The inrush current made the capacitor explode with a loud pop. A fireball flew out and landed on... | 1,760,371,846.025248 | ||
https://hackaday.com/2024/07/22/mechanical-intelligence-and-counterfeit-humanity/ | Mechanical Intelligence And Counterfeit Humanity | Maya Posch | [
"Artificial Intelligence"
] | [
"artifical intelligence"
] | It would seem fair to say that the second half of last century up till the present day has been firmly shaped by our relation with technology and that of computers in particular. From the bulking behemoths at universities, to microcomputers at home, to today’s smartphones, smart homes and ever-looming compute cloud, we... | 12 | 4 | [
{
"comment_id": "6778681",
"author": "jawnhenry",
"timestamp": "2024-07-23T02:54:19",
"content": "“I have found that the reason a lot of people are interested in artificial intelligence is for the same reason that a lot of people are interested in artificial limbs: they are missing one.”and…“Artific... | 1,760,371,845.914413 | ||
https://hackaday.com/2024/07/22/cw-not-hard-enough-try-this-tiny-paddle/ | CW Not Hard Enough? Try This Tiny Paddle | Bryan Cockfield | [
"Radio Hacks"
] | [
"continuous wave",
"cw",
"ham",
"morse",
"paddle",
"portable",
"pota",
"radio",
"small",
"SOTA",
"summits on the air",
"tiny"
] | For a long time, a Morse code proficiency was required to obtain an amateur radio license in many jurisdictions around the world, which was a much higher bar of entry than most new hams have to pass. Morse, or continuous wave (CW) is a difficult skill to master, and since the requirement has been dropped from most lice... | 7 | 4 | [
{
"comment_id": "6778656",
"author": "H",
"timestamp": "2024-07-22T23:46:22",
"content": "For small messages?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6778739",
"author": "A ham",
"timestamp": "2024-07-23T10:50:43",
"content": "... | 1,760,371,846.144959 | ||
https://hackaday.com/2024/07/22/bluetooth-printer-works-with-appletalk/ | Bluetooth Printer Works With AppleTalk | Navarre Bartz | [
"Retrocomputing"
] | [
"imac g3",
"mini printer",
"thermal printer",
"wireless"
] | For retrocomputing enthusiasts, getting old computers to work with newer peripherals can be an exciting challenge or horrible headache. If you need to print out receipts from an old Mac, you might just be in luck now that [Hamin Mousavi] has gotten
AppleTalk to work with cat printers
.
[Mousavi] uses a Raspberry Pi 4 h... | 1 | 1 | [
{
"comment_id": "6778745",
"author": "Alexander Rowsell",
"timestamp": "2024-07-23T11:37:36",
"content": "I have one of the “cat” printers, and while you can do a lot of neat stuff with the official app, it would indeed be nice to control it directly. I am hoping to either build (or find) a solution... | 1,760,371,845.780856 | ||
https://hackaday.com/2024/07/22/a-throne-for-lego-baron-harkonnen/ | A Throne For LEGO Baron Harkonnen | Kristina Panos | [
"Arduino Hacks",
"Toy Hacks"
] | [
"arduino",
"arduino nano",
"automata",
"dune",
"lego",
"stepper",
"stepper motor"
] | If you’re both a LEGO and a
Dune
fan, unless you’ve been living in a cave on Mars with your eyes shut and fingers in your ears, you’re probably aware that LEGO released a set for the royal Atreides ornithopter. The blades flap and everything. Anyway, it comes with several minifigures, including one that doesn’t quite f... | 2 | 2 | [
{
"comment_id": "6778617",
"author": "Cad the Mad",
"timestamp": "2024-07-22T19:52:31",
"content": "Simple, elegant, and a satisfyingly polished build.Very nice. Not every project needs to be super technical or elaborate.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comme... | 1,760,371,845.957189 | ||
https://hackaday.com/2024/07/22/small-mammals-appear-to-have-a-secret-infrared-sense/ | Small Mammals Appear To Have A Secret Infrared Sense | Lewin Day | [
"Hackaday Columns",
"Science",
"Slider"
] | [] | If you’ve ever watched
Predator
, you’ve noted the tactical advantage granted to the alien warrior by its heat vision. Indeed, even with otherwise solid camoflauge, Dutch and his squad ended up very much the hunted.
And yet, back in reality, it seems the prey might be the one with the ability to sense in the infrared s... | 23 | 11 | [
{
"comment_id": "6778582",
"author": "H Hack",
"timestamp": "2024-07-22T18:02:56",
"content": "I used an IR led/sensor in a rodent trap. The video camera recorded one rat approaching in the dark, freezing and bolting away. No other beast ever came close again.",
"parent_id": null,
"depth": 1... | 1,760,371,846.10004 | ||
https://hackaday.com/2024/07/22/making-a-solid-state-6ak8-tube/ | Making A Solid State 6AK8 Tube | Al Williams | [
"classic hacks",
"Parts"
] | [
"fet",
"mosfet",
"tube"
] | [M Caldeira] had a project in mind: replacing a
common vacuum tube with a solid-state equivalent
. The tube in question was an EABC80 or 6AK8 triple diode triode. The key was identifying a high-voltage FET and building it, along with some other components, into a tube base to make a plug-in replacement for the tube. Yo... | 13 | 7 | [
{
"comment_id": "6778533",
"author": "Sohere",
"timestamp": "2024-07-22T16:35:35",
"content": "Article in QST from 1969 about replacing existing tube circuits with fetshttps://www.qsl.net/kh6grt/page4/tubesters/MOSFETs%20for%20Tubes.pdf",
"parent_id": null,
"depth": 1,
"replies": []
},... | 1,760,371,846.198022 | ||
https://hackaday.com/2024/07/22/reviewing-nuclear-accidents-separating-fact-from-fiction/ | Reviewing Nuclear Accidents: Separating Fact From Fiction | Maya Posch | [
"Current Events",
"Featured",
"Original Art",
"Slider"
] | [
"Chernobyl",
"Chornobyl",
"Fukushima",
"nuclear power",
"three mile island"
] | Few types of accidents speak as much to the imagination as those involving nuclear fission. From the unimaginable horrors of the nuclear bombs on Nagasaki and Hiroshima, to the fever-pitch reporting about the accidents at Three Mile Island, Chernobyl and Fukushima, all of these have resulted in many descriptions and vi... | 94 | 29 | [
{
"comment_id": "6778484",
"author": "SeattleSipper",
"timestamp": "2024-07-22T14:24:52",
"content": "Separating fact from fiction, indeed. No mention of the costs to date of the partial cleanups. Dismissing the deaths caused. No mention of the fact that Chernobyl and Fukushima are not really cleane... | 1,760,371,846.576042 | ||
https://hackaday.com/2024/07/22/fauxtrs-is-definitely-not-a-trash-80/ | FauxTRS Is Definitely Not A Trash 80 | Jenny List | [
"Raspberry Pi",
"Retrocomputing"
] | [
"3D printed enclosure",
"emulation",
"recreation",
"trs-80"
] | Among the 8-bit home micro boom from the late 1970s through early 1980s, the introduction to computing for many wasn’t a pricey Apple or Commodore, instead it was the slightly lower budget machine from Radio Shack. The TRS-80 series of computers live on and have a loyal following among retro computing enthusiasts. But ... | 12 | 4 | [
{
"comment_id": "6778454",
"author": "Joshua",
"timestamp": "2024-07-22T12:59:58",
"content": "Guys, I really appreciate those model making efforts but after all those yeaes, could you please start to pay the CRT the tribute it deserves?Using an LCD as a substitute is all nice and soft and warm, bu... | 1,760,371,846.25802 | ||
https://hackaday.com/2024/07/22/an-avo-8-teardown/ | An AVO 8 Teardown | Al Williams | [
"Repair Hacks",
"Teardown"
] | [
"analog meter",
"AVO"
] | AVO meters — literally amp, volt, ohm meters — are not very common in North America but were staples in the UK. [TheHWcave] found an AVO 8 that is probably from the 1950s or 1960s and
wanted to get it working
. You can see the project in the video below.
These are very different from the standard analog meters many of ... | 7 | 3 | [
{
"comment_id": "6778386",
"author": "BT",
"timestamp": "2024-07-22T08:13:22",
"content": "“We were surprised that the meter didn’t have a parallax-correcting mirror.”I think it does, right at the bottom of the scale. In later models they moved it further up the scale because the curve of the scale ... | 1,760,371,846.687187 | ||
https://hackaday.com/2024/07/21/coax-stub-filters-demystified/ | Coax Stub Filters Demystified | Dan Maloney | [
"Radio Hacks"
] | [
"amateur radio",
"bandpass",
"coaxial",
"filter",
"ham",
"impedance",
"matching",
"RF",
"stub"
] | Unless you hold a First Degree RF Wizard rating, chances are good that coax stubs seem a bit baffling to you. They look for all the world like short circuits or open circuits, and yet work their magic and act to match feedline impedances or even as bandpass filters. Pretty interesting behavior from a little piece of co... | 9 | 3 | [
{
"comment_id": "6778365",
"author": "Walrus",
"timestamp": "2024-07-22T06:49:48",
"content": "No offense but this is literally RF 101 covered in the most basic of EM fields and waves classes and well known by high school diploma ham radio enthusiasts everywhere. Maybe better to tone down the comme... | 1,760,371,846.736348 | ||
https://hackaday.com/2024/07/21/cerametal-lets-you-print-metal-cheaply-and-easily/ | CeraMetal Lets You Print Metal, Cheaply And Easily | Elliot Williams | [
"3d Printer hacks"
] | [
"3D metal printer",
"3d printing",
"3d printing clay",
"metal"
] | 3D printing metal has been somewhat of a holy grail for the last decade in the hobby 3DP scene. We’ve seen a number of solutions, including using expensive filaments that incorporate metal into the usual plastic. In parallel, we’ve seen ceramic printers, and paste printers in general, coming into their own. What if you... | 27 | 11 | [
{
"comment_id": "6778348",
"author": "Mhajicek",
"timestamp": "2024-07-22T05:45:14",
"content": "Seems you’d be better off printing a mold and pressing in your metal clay.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6778424",
"author": "Jan-Willem... | 1,760,371,846.646685 | ||
https://hackaday.com/2024/07/21/hackaday-links-july-21-2024/ | Hackaday Links: July 21, 2024 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"AirTag",
"baseball",
"bsod",
"CrowdStrike",
"cybersecurity",
"deployment",
"fema",
"Find My Device",
"hackaday links",
"strike",
"Texas",
"umpire",
"Waffle House",
"Whattaburger"
] | When monitors around the world display a “Blue Screen of Death” and you know it’s probably your fault, it’s got to be a terrible, horrible, no good, very bad day at work. That’s likely the situation inside CrowdStrike this weekend, as engineers at the cybersecurity provider struggle to recover from
an update rollout th... | 20 | 8 | [
{
"comment_id": "6778238",
"author": "Bruce.desertrat",
"timestamp": "2024-07-21T23:07:25",
"content": "My",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6778247",
"author": "bruce.desertrat",
"timestamp": "2024-07-21T23:33:53",
"cont... | 1,760,371,846.882764 | ||
https://hackaday.com/2024/07/21/a-modchip-for-a-fridge/ | A Modchip For A Fridge | Jenny List | [
"home hacks"
] | [
"555",
"fridge",
"modchip"
] | An annoying fridge that beeps incessantly when the door is open too long should be an easy enough thing to fix by disconnecting the speaker, but when as with [kennedn]’s model it’s plumbed in and the speaker is inaccessible, what’s to be done? The answer:
create a mod chip for a fridge
.
While the fridge electronics th... | 52 | 10 | [
{
"comment_id": "6778191",
"author": "Misterlaneous",
"timestamp": "2024-07-21T20:46:57",
"content": "We use more ice in the summer than my fridge can make with it’s normal cycle. It can just barely keep up if I keep turning the fast ice setting on, but that turns off after 12-24 hours, even when th... | 1,760,371,846.822361 | ||
https://hackaday.com/2024/07/21/powering-biology-with-batteries/ | Powering Biology With Batteries | Navarre Bartz | [
"Science"
] | [
"ATP",
"bioelectrical",
"bioelectrocatalysis",
"biology",
"Chemistry",
"electrobiological",
"electrobiotechnology",
"enzyme",
"synthetic biology"
] | We’ve all been there — you forgot your lunch, but there are AC outlets galore. Wouldn’t it be so much simpler if you could just plug in like your phone? Don’t try it yet, but biologists have taken us one step further to being able to
fuel ourselves on those sweet, sweet electrons
.
Using an “electrobiological module” o... | 18 | 9 | [
{
"comment_id": "6778144",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-21T18:08:00",
"content": "One step closer to becoming Borg!I welcome our new hybrid overlords!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6778156",
... | 1,760,371,847.32145 | ||
https://hackaday.com/2024/07/21/ask-hackaday-should-we-teach-basic/ | Ask Hackaday: Should We Teach BASIC? | Al Williams | [
"classic hacks",
"Software Development"
] | [
"basic",
"programming"
] | Suppose you decide you want to become a novelist. You enroll in the Hackaday Famous Novelists School where your instructor announces that since all truly great novels are written in Russian, our first task will be to learn Russian. You’d probably get up and leave. The truth is, what makes a great (or bad) novel transce... | 184 | 50 | [
{
"comment_id": "6778076",
"author": "Danjovic",
"timestamp": "2024-07-21T14:07:49",
"content": "I have always thought that BASIC makes more sense to Arduino beginners than C++.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6778086",
"author": "Gunp... | 1,760,371,847.269685 | ||
https://hackaday.com/2024/07/21/welding-wood-is-as-simple-as-rubbing-two-sticks-together/ | Welding Wood Is As Simple As Rubbing Two Sticks Together | Dan Maloney | [
"Science"
] | [
"Argon",
"biopolymers",
"friction welding",
"lignin",
"stir welding",
"vacuum",
"welding",
"wood"
] | Can you weld wood? It seems like a silly question — if you throw a couple of pieces of oak on the welding table and whip out the TIG torch, you know nothing is going to happen. But as [Action Lab] shows us in the video below,
welding wood is technically possible
, if not very practical.
Since experiments like this some... | 12 | 8 | [
{
"comment_id": "6778056",
"author": "paulvdh",
"timestamp": "2024-07-21T11:52:12",
"content": "This also reminds me of making pellets from sawdust under high pressure. But I never looked into details of whether this should be called “welding” or if it’s more like “glueing” wood with it’s own lignin... | 1,760,371,847.045208 | ||
https://hackaday.com/2024/07/21/all-about-pnp-transistors/ | All About PNP Transistors | Al Williams | [
"Parts"
] | [
"bipolar transistor",
"pnp transistor",
"transistor"
] | In the early days, PNP bipolar transistors were common, but the bulk of circuits you see today use NPN transistors. As [Aaron Danner] points out, many people think PNP transistors are “backward” but they have an important role to play in many circuits. He
explains it all
in a recent video you can see below.
He does exp... | 21 | 7 | [
{
"comment_id": "6778075",
"author": "akimmet",
"timestamp": "2024-07-21T13:57:48",
"content": "NPN silicon transistors are more common simply because they are easier to manufacture, and therefore cheaper. With early germanium transistors, most devices were PNP for the same reason.",
"parent_id"... | 1,760,371,847.380587 | ||
https://hackaday.com/2024/07/20/using-femtosecond-laser-pulses-to-induce-metastable-hidden-states-in-magnetite/ | Using Femtosecond Laser Pulses To Induce Metastable Hidden States In Magnetite | Maya Posch | [
"Laser Hacks",
"Science"
] | [
"magnetite"
] | Hidden states are a fascinating aspect of matter, as these can not normally be reached via natural processes (i.e. non-ergodic), but we can establish them using laser photoexcitation. Although these hidden states are generally very unstable and will often decay within a nanosecond, there is evidence for more persistent... | 0 | 0 | [] | 1,760,371,847.425678 | ||
https://hackaday.com/2024/07/20/working-through-the-art-of-electronics-exercises/ | Working ThroughThe Art Of ElectronicsExercises | Al Williams | [
"Parts",
"Tech Hacks"
] | [
"Art Of Electronics"
] | [The Engineering Experience] has an ambitious series of videos. He’s working through circuit examples from the awesome book “
The Art of Electronics
.” In the latest installment, he’s looking at a
pulse generator
that uses bipolar transistors. So far, there are 43 videos covering different exercises.
If you’ve read the... | 10 | 8 | [
{
"comment_id": "6778034",
"author": "Steven Gates",
"timestamp": "2024-07-21T08:07:57",
"content": "I unfortunately never took up electronics (again) after retiring from the Air Force some 30 years ago. Before my stint in the Air Force, as a kid, I was all about electronics. Vacuum tube electronics... | 1,760,371,847.621466 | ||
https://hackaday.com/2024/07/20/new-additive-manufacturing-contenders-hip-and-centrifugal-printing/ | New Additive Manufacturing Contenders: HIP And Centrifugal Printing | Maya Posch | [
"3d Printer hacks",
"Tech Hacks"
] | [
"Additive Manufacturing",
"sintering"
] | Additive Manufacturing (AM) is a field of ever-growing importance, with many startups and existing companies seeking to either improve on existing AM technologies or market new approaches. At the RAPID + TCT 2024 tradeshow it seems that we got
two more new AM approaches
to keep an eye on to see how they develop. These ... | 6 | 3 | [
{
"comment_id": "6777970",
"author": "SpillsDirt",
"timestamp": "2024-07-20T23:40:04",
"content": "> what seems like a budget version of typical powder sintering AM printers.NO. Not budget version AT ALL. Hot Isostatic Pressing involves pressures as high as 43000 psi at temperatures up to 2000°C. Th... | 1,760,371,847.478888 | ||
https://hackaday.com/2024/07/20/this-vintage-computing-device-is-no-baby-food/ | This Vintage Computing Device Is No Baby Food | Al Williams | [
"Retrocomputing"
] | [
"retrocomputer",
"tape drive"
] | Today, if you want a computer for a particular task, you go shopping. But in the early days of computing, exotic applications needed custom computers. What’s more is that with the expense of computers, you likely got one made that fit exactly what you needed and no more. That led to many oddball one-off or nearly one-o... | 10 | 5 | [
{
"comment_id": "6777963",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-20T22:00:22",
"content": "So, we have to wait until the next video to see what’s going on in the back, and maybe the inside.I hope someone out there knows more about the machine.",
"parent_id": null... | 1,760,371,847.5263 | ||
https://hackaday.com/2024/07/20/2024-business-card-challenge-cardtunes-bluetooth-speaker/ | 2024 Business Card Challenge: CardTunes Bluetooth Speaker | Donald Papp | [
"contests",
"Musical Hacks",
"PCB Hacks"
] | [
"bluetooth speaker",
"business card",
"ESP32",
"fpc",
"wireless"
] | A business card form factor can be quite limiting, but that didn’t stop [Schwimmflugel] from creating
CardTunes
, an ESP32-based Bluetooth audio speaker that tried something innovative to deliver the output.
What’s very interesting about this design is the speaker itself. [Schwimmflugel] aimed to create a speaker out o... | 8 | 7 | [
{
"comment_id": "6777920",
"author": "PEBKAC",
"timestamp": "2024-07-20T18:01:16",
"content": "I can’t help but think that the issue with the speaker was actually enclosure design.Having two diaphragms pushing/pulling on a tiny sealed(ish) volume of air just doesn’t leave much room for… Amplitude.Es... | 1,760,371,847.573022 | ||
https://hackaday.com/2024/07/20/do-your-research/ | Do Your Research | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Slider"
] | [] | We were talking about a sweet hack this week, wherein [Alex]
busts the encryption for his IP web cam firmware
so that he can modify it later. He got a number of lucky breaks, including getting root on the device just by soldering on a serial terminal, but was faced with having to reverse-engineer a binary that implemen... | 7 | 3 | [
{
"comment_id": "6777876",
"author": "Nobody",
"timestamp": "2024-07-20T14:43:31",
"content": "Pro Tip: If you want to know when someone is reverse engineering your firmware, add ‘interesting strings’ to your binary, and setup a web site indexed by the major search engines containing those strings. ... | 1,760,371,847.666565 | ||
https://hackaday.com/2024/07/20/sealed-packs-of-pokemon-cards-give-up-their-secrets-without-opening-them/ | Sealed Packs Of Pokémon Cards Give Up Their Secrets Without Opening Them | Donald Papp | [
"Machine Learning",
"Science",
"Toy Hacks"
] | [
"computed tomography",
"ct scanner",
"pokemon",
"x-ray"
] | [Ahron Wayne] succeeded in something he’s been trying to accomplish for some time: figuring out
what’s inside a sealed Pokémon card packet without opening it
. There’s a catch, however. It took buying an X-ray CT scanner off eBay, refurbishing and calibrating it, then putting a load of work into testing and scanning te... | 32 | 16 | [
{
"comment_id": "6777845",
"author": "Slurm",
"timestamp": "2024-07-20T11:40:43",
"content": "Reminds me of Q’s X-Ray Document Scanner from 1995 James Bond GoldenEye.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6777865",
"author": "Jack Meoff",
"tim... | 1,760,371,847.737119 | ||
https://hackaday.com/2024/07/20/robot-seeks-and-sucks-up-cigarette-butts-with-its-feet/ | Robot Seeks And Sucks Up Cigarette Butts, With Its Feet | Donald Papp | [
"green hacks",
"Robots Hacks"
] | [
"cigarette butt",
"robot",
"trash",
"vacuum"
] | It would be better if humans
didn’t
toss cigarette butts on the ground in the first place, but change always takes longer than we think it should. In the meantime, researchers at the Italian Institute of Technology have used the problem as an opportunity to explore what seems to be a novel approach:
attaching vacuum pi... | 30 | 14 | [
{
"comment_id": "6777821",
"author": "Menno",
"timestamp": "2024-07-20T09:17:13",
"content": "Smokers always declare themselves as being very social, as they will chat with random other addicts in their designated smoking areas, sometimes even giving out their poison.If I look at how the floor looks... | 1,760,371,848.184682 | ||
https://hackaday.com/2024/07/19/modern-in-circuit-emulator-for-the-6809/ | Modern In-Circuit Emulator For The 6809 | Alexander Rowsell | [
"ARM",
"computer hacks",
"hardware",
"Microcontrollers",
"Retrocomputing"
] | [
"CoCo",
"in-circuit debugger",
"In-Circuit-Emulator",
"motorola 6809",
"Teensy 4.1",
"TRS-80 Colour Computer"
] | The Motorola 6809, released in 1978, was the follow-up to their 6800 from four years earlier. It’s a powerful little chip with many 16-bit features, although it’s an 8-bit micro at heart. Despite its great improvements over the 6800, and even technical superiority over the Z80 and 6502 (hardware multiply, for example!)... | 12 | 6 | [
{
"comment_id": "6777828",
"author": "MG",
"timestamp": "2024-07-20T09:58:55",
"content": "Fun fact: The 6809 was also the backbone of the Fairlight CMI series, one of the first successful lines of sampling synthesizers. The CMI IIx, at least, used 3 of them.",
"parent_id": null,
"depth": 1,... | 1,760,371,848.110746 | ||
https://hackaday.com/2024/07/19/the-continuing-venusian-mystery-of-phosphine-and-ammonia/ | The Continuing Venusian Mystery Of Phosphine And Ammonia | Maya Posch | [
"Science",
"Space"
] | [
"Phosphine",
"venus"
] | The planet Venus is in so many ways an enigma. It’s a sister planet to Earth and also within relatively easy reach of our instruments and probes, yet we nevertheless know precious little about what is going on its surface or even inside its dense atmosphere. Much of this is of course due to planets like Mars getting al... | 18 | 8 | [
{
"comment_id": "6777796",
"author": "brucedesertrat",
"timestamp": "2024-07-20T02:31:06",
"content": "” like Mars getting all the orbiting probes and rovers scurrying around on its barren, radiation-blasted surface”Yeah, well there is the minor points of Venus having 92 atmospheres pressure, nearly... | 1,760,371,850.186121 | ||
https://hackaday.com/2024/07/19/desiccants-tested-side-by-side/ | Desiccants, Tested Side By Side | Jenny List | [
"chemistry hacks",
"News"
] | [
"desiccant",
"drying",
"silica gel"
] | We’re so used to seeing a little sachet of desiccant drop out of a package when we open it, that we seldom consider these essential substances. But anyone who spends a while around 3D printing soon finds the need for drying their filament, and knowing a bit about the subject becomes of interest. It’s refreshing then to... | 40 | 15 | [
{
"comment_id": "6777770",
"author": "David",
"timestamp": "2024-07-19T23:13:18",
"content": "One benefit for Team Rice is that it is relatively soft and unlikely to scratch up your phone if you just stick it in rice. Many other products will require proper protection of the phone or pouches for the... | 1,760,371,850.090026 | ||
https://hackaday.com/2024/07/19/watch-this-rc-jet-thrust-system-dance/ | Watch This RC Jet Thrust System Dance | Donald Papp | [
"drone hacks",
"how-to"
] | [
"3d printed",
"EDF",
"jet",
"rc",
"Thrust vectoring"
] | An EDF (electric duct fan) is a motor that basically functions as a jet engine for RC aircraft. They’re built for speed, but to improve maneuverability (and because it’s super cool) [johnbecker31] designed
a 3D-printable method of adjusting the EDF’s thrust
on demand.
Before 3D printers were common, making something li... | 7 | 5 | [
{
"comment_id": "6777768",
"author": "Andrzej",
"timestamp": "2024-07-19T22:48:58",
"content": "Nitpick warning.A typical quadcopter maneuvers by adjusting thrust. Here we have thrust vectoring. The term is used in both videos, so why not stick to it?Calling this “adjusting” thrust is technically co... | 1,760,371,850.422949 | ||
https://hackaday.com/2024/07/19/how-ten-turn-pots-are-made/ | How Ten Turn Pots Are Made | Al Williams | [
"classic hacks",
"Parts"
] | [
"10 turn pot",
"potentiometer",
"ten turn pot"
] | It is easy to think of a potentiometer as a simple device, but there are many nuances. For example, some pots are linear — a change of a few degrees at the low end will change the resistance the same amount as the same few degrees at the high end. Others are logarithmic. Changes at one end of the scale are more dramati... | 5 | 3 | [
{
"comment_id": "6777742",
"author": "0xdeadbeef",
"timestamp": "2024-07-19T20:04:22",
"content": "It needs one more turn of wire, so that it can be turned up to 11. ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777749",
"author": "john",
... | 1,760,371,849.746711 | ||
https://hackaday.com/2024/07/19/supercon-2023-pierce-nichols-is-teaching-robots-to-sail/ | Supercon 2023: [Pierce Nichols] Is Teaching Robots To Sail | Navarre Bartz | [
"cons",
"Hackaday Columns",
"Slider",
"Transportation Hacks"
] | [
"cargo",
"cargo ship",
"catamaran",
"sail",
"sailboat",
"sailing",
"sails",
"shipping",
"upwind",
"wing sail"
] | Sailing the high seas with the wind conjures a romantic notion of grizzled sailors fending off pirates and sea monsters, but until the 1920s, wind-powered vessels were the primary way goods traveled the sea. The meager weather-prediction capabilities of the early 20th Century spelled the end of the sailing ship for mos... | 12 | 5 | [
{
"comment_id": "6777695",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-19T17:33:12",
"content": "AIUI, sailing wessels are commonly used along the east coast of Africa extending to India.Having grown up far from “big water” I find the numerous sailing terms in the article ... | 1,760,371,849.950839 | ||
https://hackaday.com/2024/07/19/hackaday-podcast-episode-280-tv-tubes-as-amplifiers-smart-tech-in-sportsballs-and-adrian-gives-us-the-fingie/ | Hackaday Podcast Episode 280: TV Tubes As Amplifiers, Smart Tech In Sportsballs, And Adrian Gives Us The Fingie | Dan Maloney | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Despite the summer doldrums, it was another big week in the hacking world, and Elliot sat down with Dan for a rundown. Come along for the ride as Dan betrays his total ignorance of soccer/football, much to Elliot’s amusement. But it’s all about keeping the human factor in sports, so we suppose it was worth it. Less con... | 3 | 1 | [
{
"comment_id": "6777687",
"author": "Elliot Williams",
"timestamp": "2024-07-19T17:04:42",
"content": "Podcast came out late today — I lost about three hours worth of work because of a bizarre Audacity crash from which it never recovered. Grrr….Anyway, I bit the bullet and re-did it _all_. So enj... | 1,760,371,850.131056 | ||
https://hackaday.com/2024/07/19/so-you-can-tuna-fish/ | So YouCanTuna Fish | Kristina Panos | [
"Arduino Hacks",
"Musical Hacks"
] | [
"music",
"resistance",
"tuna fish",
"tune a fish"
] | You know what they say. But it’s 2024, after all. Shouldn’t you be able to tune a fish by now?
As [ChromaLock] shows us in the video below
, it’s absolutely possible, and has been all along.
Of course, you can’t possibly put a rainbow trout (or any other fish) under tension until it produces audible tones. So, how does... | 10 | 9 | [
{
"comment_id": "6777667",
"author": "Misterlaneous",
"timestamp": "2024-07-19T16:06:36",
"content": "This reminds me of the makey makey I backed on Kickstarter in 2012",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6777668",
"author": "Tomsz",
"timest... | 1,760,371,850.288167 | ||
https://hackaday.com/2024/07/19/this-week-in-security-snowflake-the-cvd-tension-and-kasperskys-exit-and-breaking-bsod/ | This Week In Security: Snowflake, The CVD Tension, And Kaspersky’s Exit — And Breaking BSOD | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"Breaking BSOD",
"snowflake",
"This Week in Security"
] | In the past week, AT&T
has announced an absolutely massive data breach
. This is sort of a multi-layered story, but it gives me an opportunity to use my favorite piece of snarky IT commentary: The cloud is a fancy way to talk about someone else’s servers. And when that provider has a security problem, chances are, so d... | 37 | 6 | [
{
"comment_id": "6777614",
"author": "Zoe Nagy",
"timestamp": "2024-07-19T14:03:28",
"content": "Good thing I disabled Windows automatic update since Windows 7.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777619",
"author": "shinsukke",
"... | 1,760,371,850.369721 | ||
https://hackaday.com/2024/07/18/supercon-2023-bringing-arcade-classics-to-new-hardware/ | Supercon 2023: Bringing Arcade Classics To New Hardware | Tom Nardi | [
"classic hacks",
"cons",
"Hackaday Columns",
"Nintendo Game Boy Hacks",
"Slider"
] | [
"code porting",
"decompile",
"reverse engineering",
"Supercon 2023"
] | The processing power of modern game consoles is absolutely staggering when compared to the coin-op arcade machines of the early 1980s. Packed with terabytes of internal storage and gigabytes of RAM, there’s hardly a comparison to make with the Z80 cabinets that ran classics like
Pac-Man
. But despite being designed to ... | 8 | 5 | [
{
"comment_id": "6777344",
"author": "Buzz McCool",
"timestamp": "2024-07-18T17:35:41",
"content": "Lost me at the convert the Z80 assembly over to C step.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6777356",
"author": "The Commenter Formerly Known As ... | 1,760,371,850.238873 | ||
https://hackaday.com/2024/07/18/this-modded-shopping-cart-probably-isnt-street-legal/ | This Modded Shopping Cart Probably Isn’t Street Legal | Bryan Cockfield | [
"Transportation Hacks"
] | [
"caster wheels",
"drift",
"drifting",
"go-kart",
"scooter",
"shopping cart",
"transportation",
"vehicle"
] | If you don’t count the high center of gravity, the weight limit, the weak chassis, or the small size, a standard shopping cart is an almost ideal platform for building a fun drifting kart. At least, that was [Garage Avenger]’s thought process
when he started this build to turn a shopping cart into the ultimate drift ve... | 9 | 7 | [
{
"comment_id": "6777334",
"author": "Miles",
"timestamp": "2024-07-18T17:07:05",
"content": "He is making a Crazy Kart (X)XL. It is a commercially available ‘drift’ cart. Look up ‘Ken Box’ to see it doing its thing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"commen... | 1,760,371,850.000058 | ||
https://hackaday.com/2024/07/18/secrets-of-the-old-digital-design-titans/ | Secrets Of The Old Digital Design Titans | Al Williams | [
"Featured",
"Skills",
"Slider"
] | [
"digital design",
"karnaugh"
] | Designing combinatorial digital circuits seems like it should be easy. After all, you can do everything you want with just AND, OR, and NOT gates. Bonus points if you have an XOR gate, but you can build everything you need for combinatorial logic with just those three components. If all you want to do is design somethi... | 46 | 18 | [
{
"comment_id": "6777284",
"author": "Pat",
"timestamp": "2024-07-18T14:28:00",
"content": "Okay, it’s kindof hilarious you start off by saying “you can build everything you need for combinatorial logic with just those three components” and promptly show how only 2 of the 3 are needed: it’s like the... | 1,760,371,850.520557 | ||
https://hackaday.com/2024/07/18/lasers-could-help-us-recycle-plastics-into-carbon-dots/ | Lasers Could Help Us Recycle Plastics Into Carbon Dots | Lewin Day | [
"green hacks",
"News"
] | [
"carbon dots",
"laser",
"plastic",
"recycling",
"science"
] | As it turns out, a great deal of plastics are thrown away every year, a waste which feels ever growing. Still,
as reported by
Sci-Tech Daily
, there may be help on the way from our good friend, the laser!
The research paper
from the
University of Texas
outlines the use of lasers for breaking down tough plastics into th... | 17 | 8 | [
{
"comment_id": "6777224",
"author": "Andrew",
"timestamp": "2024-07-18T11:39:30",
"content": "Just burn it. It’s made of oil.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777242",
"author": "Zoe Nagy",
"timestamp": "2024-07-18T12:17:04",
... | 1,760,371,850.574086 | ||
https://hackaday.com/2024/07/18/are-hackers-the-future-of-amateur-radio/ | Are Hackers The Future Of Amateur Radio? | Jenny List | [
"Radio Hacks"
] | [
"amateur radio",
"hackers",
"ham radio"
] | If amateur radio has a problem, it’s that shaking off an image of being the exclusive preserve of old men with shiny radios talking about old times remains a challenge. Especially, considering that so many amateurs
are
old men who like to talk a lot about old times. It’s difficult to attract new radio amateurs in the a... | 120 | 35 | [
{
"comment_id": "6777175",
"author": "thedryparn",
"timestamp": "2024-07-18T08:53:18",
"content": "Sadly that is how it is. I am an Electronics Engineer and have been a radio fan since I was 14. I got all the books and joined a course to get the HAM license i had longed for.After a while i grew sick... | 1,760,371,851.529166 | ||
https://hackaday.com/2024/07/17/free-and-open-e-reader-from-the-ground-up/ | Free And Open E-Reader From The Ground Up | Bryan Cockfield | [
"Kindle hacks"
] | [
"calibre",
"e-ink",
"e-reader",
"ebook",
"floss",
"foss",
"good display",
"hardware",
"kindle",
"open",
"open source",
"raspberry pi compute",
"server"
] | Although ebooks and e-readers have a number of benefits over reading an analog paper book as well as on more common electronic devices like tablets, most of them are locked behind proprietary systems like Kindle which make it difficult to take control over your electronic library. While there are a few off-brand e-read... | 21 | 7 | [
{
"comment_id": "6777140",
"author": "tindieuser",
"timestamp": "2024-07-18T06:45:48",
"content": "Could you post it on tindie without rpi?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6777243",
"author": "drikti",
"timestamp": "2024-07-18T12:18:20",... | 1,760,371,851.359038 | ||
https://hackaday.com/2024/07/17/las-vegas-sphere-powered-by-nvidia-gpus-and-with-impressive-power-bill/ | Las Vegas’ Sphere: Powered By Nvidia GPUs And With Impressive Power Bill | Maya Posch | [
"News"
] | [
"las vegas"
] | A daytime closeup of the LED pucks that comprise the exosphere of the Sphere in Paradise, Nevada (Credit: Y2kcrazyjoker4, Wikimedia)
As the United States’ pinnacle of extravaganza, the Las Vegas Strip and the rest of the town of Paradise are on a seemingly never-ending quest to become brighter, glossier and more over t... | 51 | 12 | [
{
"comment_id": "6777104",
"author": "SRSLY??",
"timestamp": "2024-07-18T02:27:14",
"content": ">Meanwhile the 2.3 billion USD price tag for the Sphere would have gotten Nevada 16.5% of a nuclear power station like Arizona’s Palo VerdeDid I miss something somewhere?the Sphere was the brain child of,... | 1,760,371,851.055812 | ||
https://hackaday.com/2024/07/19/carbon-cement-supercapacitors-proposed-as-an-energy-storage-solution/ | Carbon–Cement Supercapacitors Proposed As An Energy Storage Solution | Maya Posch | [
"Engineering",
"Science"
] | [
"concrete",
"supercapacitor"
] | Although most energy storage solutions on a grid-level focus on batteries, a group of researchers at MIT and Harvard University have proposed using supercapacitors instead, with
their 2023 research article
by [Nicolas Chanut] and colleagues published in
Proceedings of the National Academy of Sciences
(PNAS). The twist ... | 29 | 13 | [
{
"comment_id": "6777565",
"author": "Joseph Eoff",
"timestamp": "2024-07-19T11:15:10",
"content": "Previous article on the same subject:https://hackaday.com/2023/08/01/mit-crack-the-concrete-capacitor/The biggest difference here is that there’s a direct link to the research paper. In the Hackaday... | 1,760,371,851.138311 | ||
https://hackaday.com/2024/07/19/retro-calculator-panders-to-trekkies-or-trekkers/ | Retro Calculator Panders To Trekkies… Or Trekkers | Al Williams | [
"Retrocomputing",
"Teardown"
] | [
"calculator",
"star trek"
] | Back in 1976, when calculators were not common or cheap, a company named MEGO made the Star Trekulator: a calculator sporting a
Star Trek
theme. However, it was a bit odd since the calculator didn’t correspond to anything you ever saw on the TV show. It was essentially a very simple calculator with a
Star Trek
picture ... | 10 | 5 | [
{
"comment_id": "6777569",
"author": "Paul",
"timestamp": "2024-07-19T11:39:22",
"content": "“They should have gone VFD.”It *does* use a VFD — plainly visible, espepcially around 6:15 in the video.Kinda surprised C.H.A.P. can’t identify an inductor or a resistor array package. Pretty common compone... | 1,760,371,851.689031 | ||
https://hackaday.com/2024/07/18/mechanical-keyboard-laptop-clacktop/ | Mechanical Keyboard + Laptop = Clacktop | Kristina Panos | [
"laptops hacks",
"Peripherals Hacks"
] | [
"Laptop keyboard",
"lenovo yoga",
"mechanical keyboard"
] | What do you do when your laptop keyboard breaks for the second time? Well, most people might use an external keyboard until they couldn’t take it anymore and bought a new machine.
But [Marcin Plaza] isn’t most people.
It took more than twelve hours of CAD, but [Marcin] redesigned the case to be at least twice as thick ... | 21 | 11 | [
{
"comment_id": "6777513",
"author": "Dave",
"timestamp": "2024-07-19T06:09:19",
"content": "But can you type in Morse code by repeatedly slamming your laptop shut?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6777519",
"author": "Jan",
"timestamp": ... | 1,760,371,851.1925 | ||
https://hackaday.com/2024/07/18/retrotechtacular-ford-model-t-wheels-start-to-finish/ | Retrotechtacular: Ford Model T Wheels, Start To Finish | Dan Maloney | [
"Retrotechtacular"
] | [
"ash",
"bearing",
"felloe",
"ford",
"hickory",
"hub",
"manufacturing",
"model t",
"retrotechtacular",
"spoke",
"tire",
"wheel",
"wooden"
] | There’s no doubt that you’ll instantly recognize clips from
the video below
, as they’ve been used over and over for more than 100 years to illustrate the development of the assembly line. But those brief clips never told the whole story about just how much effort Ford was forced to put into manufacturing just one comp... | 20 | 10 | [
{
"comment_id": "6777506",
"author": "the gambler",
"timestamp": "2024-07-19T05:02:32",
"content": "If you enjoy and want to learn more how wheels are made i highly recommend EngelsCoachShop on youtube. He has made pretty much every type of wheel out there from small stuff to borax wagon wheels to ... | 1,760,371,851.585789 | ||
https://hackaday.com/2024/07/18/using-opencv-to-catch-a-hungry-thief/ | Using OpenCV To Catch A Hungry Thief | Alexander Rowsell | [
"Software Development",
"Video Hacks"
] | [
"cat",
"cat food",
"FLIR Boson",
"motion detection",
"opencv"
] | Rory, the star of the show
[Scott] has a neat little closet in his carport that acts as a shelter and rest area for their outdoor cat, Rory. She has a bed and food and water, so when she’s outside on an adventure she has a place to eat and drink and nap in case her humans aren’t available to let her back in. However, [... | 17 | 8 | [
{
"comment_id": "6777458",
"author": "TimT",
"timestamp": "2024-07-18T23:21:15",
"content": "I had to battle raccoons once trying to keep them out of food I was putting out for a stray cat I was trying to rescue. I finally figured out racoons can’t really jump gaps like a cat and can’t climb a pole... | 1,760,371,851.79208 | ||
https://hackaday.com/2024/07/18/single-stepping-the-6502-processor/ | Single-Stepping The 6502 Processor | Bryan Cockfield | [
"Microcontrollers"
] | [
"6502",
"clock",
"cmos",
"data bus",
"debugging",
"flip-flop",
"registers",
"single-step",
"ttl"
] | Although marketing folk and laypeople may credit [Steve Jobs] as the man behind the success of Apple, those in the tech world know the real truth that without [Steve Wozniak] nothing would have ever gotten off the ground during the early days of the computer company. As an exhibit of his deep knowledge of the machines ... | 19 | 9 | [
{
"comment_id": "6777421",
"author": "reg",
"timestamp": "2024-07-18T20:55:12",
"content": "Way back in the early 1980’s I worked at a place repairing the control boards for printers. The printers were wildly popular and I still see one in use here and there even today.On a lot of them the issue wa... | 1,760,371,851.64368 | ||
https://hackaday.com/2024/07/18/a-nostalgic-look-at-a-kids-shortwave-resistor/ | A Nostalgic Look At A Kid’s Shortwave Receiver | Al Williams | [
"classic hacks",
"Radio Hacks"
] | [
"shortwave"
] | [Mikrowave1] had a
Unelco shortwave receiver
as a kid. This was a typical simple radio for the 1960s using germanium and silicon transistors. It also had plug-in coils you had to insert into sockets depending on the frequency band you wanted to receive.
While simple AM radios were all the rage, they didn’t have to oper... | 10 | 5 | [
{
"comment_id": "6777371",
"author": "Cheese Whiz",
"timestamp": "2024-07-18T18:36:44",
"content": "Shortwave resistor?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777374",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "20... | 1,760,371,851.73575 | ||
https://hackaday.com/2024/07/17/office-supplies-make-math-sculptures-if-you-know-what-youre-doing/ | Office Supplies Make Math Sculptures If You Know What You’re Doing | Lewin Day | [
"Art"
] | [
"binder clip",
"maths",
"office supplies",
"paper clip",
"paperclip"
] | Ever been fiddling around at your desk in the office, wondering if some grander structure might come from an assemblage of paper clips, pens, and binder clips? You’re not alone. Let your mind contemplate these beautiful maths sculptures
from [Zachary Abel].
[Zachary] has a knack for both three-dimensional forms and the... | 7 | 1 | [
{
"comment_id": "6777083",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-18T00:51:23",
"content": "It must be nice to have a job that has so much free time.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777105",
"author": "... | 1,760,371,851.838314 | ||
https://hackaday.com/2024/07/17/digitally-reading-a-micrometers-output/ | Digitally Reading A Micrometer’s Output | Lewin Day | [
"Tool Hacks"
] | [
"dial gauge",
"gauge",
"measurement",
"metrology",
"micrometer"
] | If you’re instrumenting your machine tools, or if you’re just curious, you might want to get granular access to the output of a digital micrometer or the like. [Tommy] set his mind to figuring out the communications protocol of the ClockWise Tools dial indicator for this very purpose.
And he succeeded!
Work began by fi... | 11 | 7 | [
{
"comment_id": "6777045",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-17T21:26:57",
"content": "It gives me hope that I can fix my broken 1 meter Mitutoyo caliper.Replacement circuit board is no longer available.",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,371,852.161464 | ||
https://hackaday.com/2024/07/17/floss-weekly-episode-792-rust-coreutils/ | FLOSS Weekly Episode 792: Rust Coreutils | Jonathan Bennett | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Coreutils",
"FLOSS Weekly",
"rust"
] | This week Jonathan Bennett and Jeff Massie chat with Sylvestre Ledru about the
Rust Coreutils
! Why would we want to re-implement 50 year old utilities, what’s the benefit of doing them in Rust, and what do the maintainers of the regular coreutils project think about it?
Did you know you can watch the live recording of... | 9 | 3 | [
{
"comment_id": "6777026",
"author": "AgainAgain",
"timestamp": "2024-07-17T19:56:22",
"content": "the goal is to “rewrite it in x” is to move everything to permissive liscenses. then lock future changes away. just like every thing else “security” is used as pretext.",
"parent_id": null,
"de... | 1,760,371,852.111683 | ||
https://hackaday.com/2024/07/17/hacker-tactic-single-pcb-panels/ | Hacker Tactic: Single-PCB Panels | Arya Voronova | [
"Hackaday Columns",
"Slider"
] | [
"design",
"KiCAD",
"KiKit",
"panelization",
"pcb"
] | Ordering a PCB? Two of them? Three? Five? For about eight years now, I’ve been regularly ordering large numbers of different PCBs, and, naturally, have developed a toolkit to make things smoother. One trick is PCB panelization, and you should really know about it.
You might’ve encountered PCB panels already. Perhaps, i... | 35 | 14 | [
{
"comment_id": "6776988",
"author": "KDawg",
"timestamp": "2024-07-17T17:45:18",
"content": "remember, you are paying them to throw away the material between the boards, do you really need gaps that big?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "677699... | 1,760,371,852.29052 | ||
https://hackaday.com/2024/07/17/making-art-with-maxwells-equations/ | Making Art With Maxwell’s Equations | Lewin Day | [
"Art"
] | [
"graph",
"maths",
"maxwell's equations"
] | When you think of art, you might think of portraiture, landscapes, or other kinds of paintings. But mathematics can feel artistic at times, too. We’ve all seen gorgeous Mandelbrot fractals, and less gorgeous Julia fractals, but that’s not all that’s out there. As [Prof. Halim Boutayeb] demonstrates,
Maxwell’s equations... | 5 | 3 | [
{
"comment_id": "6777110",
"author": "echodelta",
"timestamp": "2024-07-18T02:38:41",
"content": "There is a tree nursery near town on both sides of the road where they planted the trees rather precisely on a grid. When you drive by there is a stationary pattern across the whole “forest” of math mad... | 1,760,371,852.209726 | ||
https://hackaday.com/2024/07/17/fdm-filament-troubles-keeping-hygroscopic-materials-from-degrading/ | FDM Filament Troubles: Keeping Hygroscopic Materials From Degrading | Maya Posch | [
"3d Printer hacks",
"Featured",
"Original Art",
"Science",
"Slider"
] | [
"FDM",
"hydrolysis",
"hygroscopic"
] | Despite the reputation of polymers used with FDM 3D printing like nylon, ABS, and PLA as being generally indestructible, they do come with a whole range of moisture-related issues that can affect both the printing process as well as the final result. While the concept of ‘baking’ such 3D printing filaments prior to pri... | 18 | 8 | [
{
"comment_id": "6776940",
"author": "Beowulf Shaeffer",
"timestamp": "2024-07-17T14:36:15",
"content": "“…the messy world of materials science and manufacturing, both of which are simultaneously marvels of modern science while also giving engineers terrible nightmares.”Amen.",
"parent_id": null... | 1,760,371,852.350031 | ||
https://hackaday.com/2024/07/17/hacking-an-ip-camera-to-run-your-own-software/ | Hacking An IP Camera To Run Your Own Software | Lewin Day | [
"digital cameras hacks"
] | [
"camera",
"counterfeit software",
"encryption",
"ip camera",
"reverse engineering",
"rsa"
] | Ah, generic unbranded IP cameras. Safe, secure? Probably not. [Alex] has been hacking around with one of his very own,
and he’s recently busted the thing wide open.
Determining that the camera had a software update function built in, [Alex] saw an opening for hijinks. The first issue was that the camera only accepts en... | 18 | 8 | [
{
"comment_id": "6776993",
"author": "Peter M Shipley",
"timestamp": "2024-07-17T18:05:10",
"content": "been there done that 20 years ago with the original netgear IP camera.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777099",
"author": "Anthony... | 1,760,371,852.681711 | ||
https://hackaday.com/2024/07/17/a-look-at-the-dec-vt220-a-proper-serial-terminal/ | A Look At The DEC VT220, A Proper Serial Terminal | Tom Nardi | [
"Retrocomputing"
] | [
"DEC",
"serial terminal"
] | If you’re reading Hackaday, we’re willing to bet that if somebody asked you about a serial terminal, you’d immediately think about a piece of software — a tool you run on the computer to communicate with some hardware gadget over UART. You might even have a favorite one, perhaps minicom or tio. You’d be technically cor... | 52 | 24 | [
{
"comment_id": "6776859",
"author": "Iván Stepaniuk",
"timestamp": "2024-07-17T08:29:43",
"content": "Looks cereal enough to me",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6776892",
"author": "David Given",
"timestamp": "2024-07-17T11:33:... | 1,760,371,852.554533 | ||
https://hackaday.com/2024/07/16/seiko-had-a-smartwatch-in-1984/ | Seiko Had A Smartwatch In 1984 | Lewin Day | [
"Wearable Hacks"
] | [
"seiko",
"smartwatch",
"watch"
] | You might think of the smartwatch era as beginning with Apple, relatively recently. Or, you might think back to those fancy Timex models with the datalink thing going on in the 1990s. Seiko can beat them all, though, with its UC-2000 smartwatch that debuted
all the way back in 1984.
The UC2200 was the bigger docking st... | 32 | 17 | [
{
"comment_id": "6776838",
"author": "Dave",
"timestamp": "2024-07-17T05:36:43",
"content": "I am quite impressed with that. I had the Timex DataLink circa 1995, but this looks fantastic at a decade earlier.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "67768... | 1,760,371,852.629682 | ||
https://hackaday.com/2024/07/16/remembering-seymour-cray/ | Remembering Seymour Cray | Al Williams | [
"Retrocomputing"
] | [
"cray",
"supercomputer"
] | If you think of supercomputers, it is hard not to think of Seymour Cray. He built giant computers at Control Data Corporation and went on to build the famous Cray supercomputers. While those computers aren’t especially amazing today, for their time, they were modern marvels. [Asianometry]
has a great history of Cray
, ... | 28 | 17 | [
{
"comment_id": "6776815",
"author": "Glen Akins",
"timestamp": "2024-07-17T02:08:17",
"content": "They were bought by Hewlett Packard Enterprise, not Hewlett Packard.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6780706",
"author": "Jim",
... | 1,760,371,852.781618 | ||
https://hackaday.com/2024/07/16/dme-with-a-twist-of-limesdr/ | DME With A Twist Of LimeSDR | Al Williams | [
"Radio Hacks"
] | [
"avionics",
"distance measuring equipment",
"DME"
] | Navigating aircraft today isn’t like the old days. No more arrows painted on a barn roof or rotating airway beacons. Now, there are a host of radio navigation aids. GPS, of course, is available. But planes often use VOR to determine a bearing to a known point and DME — distance measuring equipment — to measure the dist... | 0 | 0 | [] | 1,760,371,852.719405 | ||
https://hackaday.com/2024/07/16/playing-rock-paper-scissors-with-a-time-of-flight-sensor/ | Playing Rock, Paper Scissors With A Time Of Flight Sensor | Lewin Day | [
"Parts"
] | [
"gesture recognition",
"rock paper scissors",
"time of flight",
"Time of Flight Sensor",
"tof sensor"
] | You can do all kinds of wonderful things with cameras and image recognition. However, sometimes spatial data is useful, too. As [madmcu] demonstrates, you can use depth data from a time-of-flight sensor for gesture recognition,
as seen in this rock-paper-scissors demo.
If you’re unfamiliar with time-of-flight sensors, ... | 3 | 1 | [
{
"comment_id": "6777061",
"author": "Garth",
"timestamp": "2024-07-17T22:14:32",
"content": "Nice….but can it play….Rock, Paper, Scissors, Lizard, Spock….?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6777063",
"author": "The Commenter Formerly Kn... | 1,760,371,852.823535 | ||
https://hackaday.com/2024/07/16/cuda-but-make-it-amd/ | CUDA, But Make It AMD | Lewin Day | [
"computer hacks",
"Machine Learning"
] | [
"amd",
"ATI",
"CUDA",
"general purpose gpu",
"gpgpu",
"radeon"
] | Compute Unified Device Architecture, or CUDA, is a software platform for doing big parallel calculation tasks on NVIDIA GPUs. It’s been a big part of the push to use GPUs for general purpose computing, and in some ways, competitor AMD has thusly been left out in the cold. However, with more demand for GPU computation t... | 40 | 13 | [
{
"comment_id": "6776730",
"author": "Kryptylomese",
"timestamp": "2024-07-16T18:33:46",
"content": "Games and graphical applications run on both nVIDIA and AMD, on all the major operating systems. An abstraction layer for CUDA doesn’t seem impossible!",
"parent_id": null,
"depth": 1,
"r... | 1,760,371,852.91479 | ||
https://hackaday.com/2024/07/16/show-us-your-minimalist-games-and-win/ | Show Us Your Minimalist Games, And Win | Elliot Williams | [
"contests",
"Hackaday Columns",
"Slider"
] | [
"2024 Tiny Games Challenge",
"contest",
"digikey",
"Hackaday Contests"
] | Sometimes the tightest constraints inspire the highest creativity. The
2024 Tiny Games Challenge
invites you to have the most fun with the most minimal setup. Whether that’s tiny size, tiny parts count, or tiny code, we want you to show us that big fun can come in small packages.
The Tiny Games Challenge starts now and... | 16 | 7 | [
{
"comment_id": "6776705",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-16T17:15:59",
"content": "I think seeing Bedoiun children playing with pebbles was watching a minimalist game.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6776... | 1,760,371,852.979173 | ||
https://hackaday.com/2024/07/16/giving-people-an-owl-like-visual-field-via-vr-feels-surprisingly-natural/ | Giving People An Owl-like Visual Field Via VR Feels Surprisingly Natural | Donald Papp | [
"Video Hacks",
"Virtual Reality"
] | [
"360 degree camera",
"perception",
"vr",
"VR camera"
] | We love hearing about a good experiment, and here’s a pretty neat one: researchers used a VR headset, an off-the-shelf VR360 camera, and some custom software to glue them together. The result?
Owl-Vision
squashes a full 360° of un-distorted horizontal visual perception into 90° of neck travel to either side. One can se... | 29 | 10 | [
{
"comment_id": "6776671",
"author": "Cheese Whiz",
"timestamp": "2024-07-16T15:56:26",
"content": "Next we start strapping these to owls so they can give their necks a break.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6776863",
"author": "Dan",
... | 1,760,371,853.137538 | ||
https://hackaday.com/2024/07/16/smart-ball-technology-has-reached-football-but-the-euros-show-us-its-not-necessarily-for-the-better/ | Smart Ball Technology Has Reached Football, But The Euros Show Us It’s Not Necessarily For The Better | Lewin Day | [
"Current Events",
"Featured",
"Original Art",
"Slider"
] | [
"adidas",
"ball",
"football",
"footballs",
"smart ball",
"smartball",
"soccer",
"var",
"video assistant referee"
] | Adidas brought smart balls to Euro 2024, for better or worse. Credit: Adidas
The good old fashioned game of football used to be a simple affair. Two teams of eleven, plus a few subs, who were all wrangled by a referee and a couple of helpful linesmen. Long ago, these disparate groups lived together in harmony. Then, ev... | 56 | 19 | [
{
"comment_id": "6776631",
"author": "Doctor Wizard",
"timestamp": "2024-07-16T14:27:51",
"content": "The way to end the controversy would be to eliminate referees entirely. Players must abide by the rules of the sensors, the technology, and the programming. Much like a video game. If the PlaySta... | 1,760,371,853.073415 | ||
https://hackaday.com/2024/07/16/times-up-for-mbed/ | Time’s Up For Mbed | Jenny List | [
"ARM",
"News"
] | [
"arm",
"mbed",
"microcontroller"
] | In a forum post has come the announcement that mBed, ARM’s accessible microcontroller development platform,
is to reach end-of-life in July 2026
. This means that the online platform and OS will no longer be supported by ARM, though the latter will remain an open source project. The website will be shuttered, and no ne... | 18 | 11 | [
{
"comment_id": "6776586",
"author": "halherta",
"timestamp": "2024-07-16T11:23:43",
"content": "mbed was a great idea but was marred by bugs, partial (undocumented) support for hundreds of boards and then the release of mbedos. If they stuck to supporting 1-5 boards, squashed bugs as soon as they a... | 1,760,371,853.503019 | ||
https://hackaday.com/2024/07/16/flexures-make-robotic-fingers-simpler-to-print/ | Flexures Make Robotic Fingers Simpler To Print | Dan Maloney | [
"Robots Hacks"
] | [
"anthropomorphic",
"biomimetic",
"compliant mechanism",
"finger",
"flexure",
"print in place",
"spring"
] | Designing an anthropomorphic robotic hand seems to make a lot of sense — right up until the point that you realize just how complex the human hand is. What works well in bone and sinew often doesn’t translate well to servos and sensors, and even building a single mechanical finger can require dozens of parts.
Or, if yo... | 6 | 6 | [
{
"comment_id": "6776592",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-16T12:03:57",
"content": "“- right up until the point that you realize just how complex the human hand is. ”One fourth of the human bones are in the hands and feet.",
"parent_id": null,
"depth"... | 1,760,371,853.357799 | ||
https://hackaday.com/2024/07/15/sharing-3d-printing-with-kids/ | Sharing 3D Printing With Kids | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"kids"
] | If you have a hobby, it is natural to want to share it with kids. If you are interested in 3D printing, you may even have kids who want to try their hand at printing without prompting. There are a number of “kid printers” aimed specifically at that market. Are they worthwhile? How old is old enough? [Everson Siqueirar]... | 16 | 6 | [
{
"comment_id": "6776547",
"author": "Teds",
"timestamp": "2024-07-16T06:44:05",
"content": "I like tech as much as anyone else here but do kids really need to be able to print lots of useless low quality plastic junk that will certainly end up in a landfill in less than 3 years ?Might get some flak... | 1,760,371,853.411366 | ||
https://hackaday.com/2024/07/15/turning-horrible-browser-controls-into-a-game/ | Turning Horrible Browser Controls Into A Game | Bryan Cockfield | [
"Games"
] | [
"breakout",
"browser",
"game",
"human interface device",
"javascript",
"knob-out",
"usb volume control",
"volume"
] | With all of the various keyboards, mouses (mice?), and other human interface devices (HID) available for our computers, there’s no possible way for developers to anticipate every type of input for every piece of software they build. Most of the time everything will work fine as long as some basic standards are kept, bo... | 7 | 4 | [
{
"comment_id": "6776477",
"author": "Satacoy",
"timestamp": "2024-07-16T02:54:20",
"content": "I enjoyed the Amiga Hyrbris or Battle Squadron sound samples.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6776483",
"author": "Andrew",
"timestamp": "202... | 1,760,371,853.450322 | ||
https://hackaday.com/2024/07/15/low-cost-cryocooler-pumps-out-cheap-diy-liquid-nitrogen/ | Low-Cost Cryocooler Pumps Out Cheap DIY Liquid Nitrogen | Dan Maloney | [
"chemistry hacks"
] | [
"Argon",
"compressor",
"condenser",
"cryocooler",
"ethylene",
"expansion",
"Joule-Thomson",
"nitrogen",
"propane"
] | A word of caution if you’re planning to try
this cryocooler method for making liquid nitrogen
: not only does it involve toxic and flammable gasses and pressures high enough to turn the works into a bomb, but you’re likely to deplete your rent account with money you’ll shell out for all the copper tubing and fittings. ... | 18 | 8 | [
{
"comment_id": "6776457",
"author": "craig",
"timestamp": "2024-07-16T01:24:23",
"content": "Best intro paragraph on HaD ever. Definitely gonna read the rest!!!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6776734",
"author": "spaceminions",
... | 1,760,371,853.603847 | ||
https://hackaday.com/2024/07/15/how-the-bell-system-was-built/ | How The Bell System Was Built | Al Williams | [
"Phone Hacks"
] | [
"att",
"bell",
"telephone"
] | We’ve often thought that while going to the moon in the 1960s was audacious, it was just the flashiest of many audacious feats attempted and accomplished in the 20th century. Imagine, for a minute, that the phone system didn’t exist today, and you stood up in front of a corporate board and said, “Let’s run copper wire ... | 9 | 3 | [
{
"comment_id": "6776405",
"author": "Hirudinea",
"timestamp": "2024-07-15T20:23:50",
"content": "Considering they are ripping out copper wire with gay abandon now you probably would be sent to the laughing academy if you suggested running copper to everyone in the country.",
"parent_id": null,
... | 1,760,371,853.550207 | ||
https://hackaday.com/2024/07/15/congratulations-to-the-2024-business-card-challenge-winners/ | Congratulations To The 2024 Business Card Challenge Winners! | Elliot Williams | [
"contests",
"Hackaday Columns",
"Slider"
] | [
"2024 Business Card Challenge",
"contest",
"digikey",
"hackaday"
] | When you ask a Hackaday crowd to design a business card, you should expect to be surprised by what you get. But still, we were surprised by the breadth of entries! Our judges wracked their brains to pick their top ten, and then we compared notes, and three projects rose to the top, but honestly the top ten could have a... | 8 | 4 | [
{
"comment_id": "6776390",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-15T19:56:45",
"content": "Congratulations to all the mentioned contestants!Some real ingenuity is shown in these cards!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_i... | 1,760,371,853.769666 | ||
https://hackaday.com/2024/07/15/reverse-engineering-a-shahed-136-drone-air-data-computer/ | Reverse-Engineering A Shahed-136 Drone Air Data Computer | Maya Posch | [
"Reverse Engineering"
] | [
"Air Data Computer",
"drone",
"shahed"
] | Top of the air data computer module, with pressure sensors, RS232 driver and DC-DC converter visible. (Credit: Le Labo de Michel, YouTube)
An air data computer (ADC) is a crucial part of an avionics package that can calculate the altitude, vertical speed, air speed and more from pressure (via pitot tubes) and temperatu... | 22 | 5 | [
{
"comment_id": "6776365",
"author": "EH",
"timestamp": "2024-07-15T18:11:12",
"content": "It’s not doxing when all the information is right on the data sheet. The maker of that DC-DC converter:Mornsun Guangzhou Science & Technology Co., Ltd.Address: No. 5, Kehui St. 1, Kehui Development Center, Sci... | 1,760,371,853.979123 | ||
https://hackaday.com/2024/07/15/nitric-acid-is-the-hot-new-way-to-pick-locks/ | Nitric Acid Is The Hot New Way To Pick Locks | Lewin Day | [
"News"
] | [
"germany",
"lock pick",
"lock picking",
"lockpick",
"lockpicking"
] | Lockpicking is a grand skill to have, and one that’s often presumed to be one of the dark arts of the burglar. However, a new technique has come to the fore in some European contexts. It appears
nitric acid is being used to damage locks
to allow criminals to gain entry into residential premises.
Germany’s
Bild
has cove... | 60 | 22 | [
{
"comment_id": "6776294",
"author": "dudefromthenorth",
"timestamp": "2024-07-15T15:38:12",
"content": "picking locks does destroy them, unlike acid, so inaccurate headline",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6776296",
"author": "dudefrom... | 1,760,371,853.917227 | ||
https://hackaday.com/2024/07/15/keebin-with-kristina-the-one-with-the-24-hour-macro-pad/ | Keebin’ With Kristina: The One With The 24-Hour Macro Pad | Kristina Panos | [
"Featured",
"Peripherals Hacks",
"Slider"
] | [
"dyeing keycaps",
"Fifi keyboard",
"getting a win",
"Helios",
"Helios-Klimax",
"keycap dyeing",
"macro pad",
"macropad",
"Moonlander",
"PBT",
"Smart ring"
] | They say Rome wasn’t built in a day, but
this great little music-controlling macro pad by [nibbler] actually was
. Why? Because as Hackaday’s own [Donald Papp] reminded us,
we all need a win sometimes
, especially as projects drag on and on without any end in sight.
Image by [nibbler] via
Toxic Antidote
As [nibbler] po... | 2 | 2 | [
{
"comment_id": "6776298",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2024-07-15T15:50:08",
"content": "“Rome wasn’t built in a day…”But it was burned in one!B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6776486",
"author": "crispe... | 1,760,371,853.81881 | ||
https://hackaday.com/2024/07/15/linksys-velop-routers-caught-sending-wifi-creds-in-the-clear/ | Linksys Velop Routers Caught Sending WiFi Creds In The Clear | Tom Nardi | [
"internet hacks",
"Security Hacks"
] | [
"linksys",
"plaintext",
"router"
] | A troubling report from the Belgian consumer protection group Testaankoop: several models of Velop Pro routers from Linksys were found to be sending WiFi configuration data out to a remote server during the setup process. That would be bad enough, but not only are these routers reporting private information to the moth... | 14 | 9 | [
{
"comment_id": "6776109",
"author": "Zoe Nagy",
"timestamp": "2024-07-15T12:02:28",
"content": "Correction, first it’s sent to NSA, then AWS.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6776379",
"author": "A",
"timestamp": "2024-07-15T19... | 1,760,371,854.030565 | ||
https://hackaday.com/2024/07/15/simple-version-of-pong-played-on-a-row-of-leds/ | Simple Version OfPongPlayed On A Row Of LEDs | Tom Nardi | [
"Arduino Hacks",
"Games",
"LED Hacks"
] | [
"1D Pong",
"arduino nano",
"pong"
] | As far as video games go,
Pong
is already about as simple as it gets. But if even two dimensions is a bit more than you’re looking to tackle, [mircemk] shows how you can
distill the core gameplay of this iconic title
to its absolute minimum using an Arduino and a row of LEDs.
While [mircemk] brings their usual design a... | 5 | 5 | [
{
"comment_id": "6776055",
"author": "Senile Data Systems",
"timestamp": "2024-07-15T10:05:56",
"content": "15 years ago I played PONG on a single character of that LCD. I’m collecting vintage video game consoles. Now one that I built myself can be considered vintage. Damn, time!I was sooo close to ... | 1,760,371,854.10419 |
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