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https://hackaday.com/2023/08/17/litter-box-sensor-lets-you-know-exactly-what-the-cats-been-up-to/ | Litter Box Sensor Lets You Know Exactly What The Cat’s Been Up To | Dan Maloney | [
"home hacks"
] | [
"cat",
"feline",
"home-assistant",
"litter box",
"MQ135",
"mqtt",
"NodeMCU",
"pets"
] | In our experience, there’s rarely any question when the cat uses the litter box. At all. In the entire house. For hours. And while it may be instantly obvious to the most casual observer that it’s time to clean the thing out, that doesn’t mean there’s no value in
quantifying your feline friend’s noxious vapors
. For sc... | 16 | 8 | [
{
"comment_id": "6673800",
"author": "David",
"timestamp": "2023-08-17T20:55:48",
"content": "It may be spelled “PIR sensor,” but it’s pronounced “PURR sensor”. Because feline.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6673936",
"author": "-jef... | 1,760,372,199.188175 | ||
https://hackaday.com/2023/08/17/angry-robot-face-is-less-than-friendly/ | Angry Robot Face Is Less Than Friendly | Lewin Day | [
"Robots Hacks"
] | [
"halloween",
"led",
"Raspberry Pi Pico",
"robot",
"robot face"
] | Sometimes you just need to create a creepy robot head and give it an intimidating personality. [Jens] has done just that, and ably so,
with his latest eerie creation.
The robot face is introduced to us with a soundtrack befitting
Stranger Things,
or maybe
Luke Million.
The build was inspired by The Doorman, a creepy ar... | 10 | 3 | [
{
"comment_id": "6673769",
"author": "Joshua",
"timestamp": "2023-08-17T18:50:30",
"content": "Andross?! 😱",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6673829",
"author": "chango",
"timestamp": "2023-08-17T23:22:36",
"content": "S... | 1,760,372,198.965443 | ||
https://hackaday.com/2023/08/17/a-turing-complete-cpu-in-sunvox-why-not/ | A Turing-Complete CPU In Sunvox? Why Not! | Dave Rowntree | [
"Musical Hacks"
] | [
"16-bit",
"cpu",
"emulation",
"SunVox"
] | Day-time software engineer and part-time musician, [Logickin,] knows a thing or two about programming the SunVox modular synthesiser and tracker software. Whilst the software is normally used for creating music and sound effects, they decided to really push it, and
create the VOXCOM-1610, a functional turing-complete C... | 7 | 3 | [
{
"comment_id": "6673708",
"author": "The Commenter Formerly Known as Ren",
"timestamp": "2023-08-17T16:01:25",
"content": "How is “turning complete” different from Turing Complete? B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6673721",
"author... | 1,760,372,198.909892 | ||
https://hackaday.com/2023/08/17/why-nuclear-bombs-cant-set-the-world-on-fire/ | Why Nuclear Bombs Can’t Set The World On Fire | Lewin Day | [
"Featured",
"Interest",
"Science"
] | [
"Manhattan Project",
"nuclear bomb",
"nuclear weapon",
"nuclear weapons",
"trinity test"
] | Before the first atomic bomb was detonated, there were some fears that a fission bomb could “ignite the atmosphere.” Yes, if you’ve just watched
Oppenheimer,
read about the Manhattan Project, or looked into atomic weapons at all, you’ll be familiar with the concept. Physicists determined the risk was “near zero,” proce... | 63 | 13 | [
{
"comment_id": "6673676",
"author": "BobH",
"timestamp": "2023-08-17T14:08:00",
"content": "> The two concluded that no matter how hot any one section of the Earth’s atmosphere might become, a runaway nuclear chain reaction was likely to be sustained.This should probably be UNLIKELY to be sustai... | 1,760,372,199.629396 | ||
https://hackaday.com/2023/08/17/2023-cyberdeck-contest-cyberdeck-red-is-ready-for-action/ | 2023 Cyberdeck Contest: Cyberdeck Red Is Ready For Action | Dan Maloney | [
"contests",
"Cyberdecks"
] | [
"2023 Cyberdeck Challenge",
"cyberdeck",
"HackRF",
"hdmi",
"Latte Panda",
"sdr",
"windows"
] | What exactly constitutes a cyberdeck is up for debate, but for us, one thing is clear: A cyberdeck needs to look like it’s ready to go to battle. When the machines finally rise up and try to wipe us all out, someone toting around a machine like
Cyberdeck Red
is probably going to be a sight for sore eyes; clearly, such ... | 8 | 4 | [
{
"comment_id": "6673630",
"author": "Foldi-One",
"timestamp": "2023-08-17T11:20:35",
"content": "This thing seems to fold up really really neatly, looks quite practical and i like the audio concept of turning the desk into part of the speaker system, though every new desk is probably going to be an... | 1,760,372,199.011643 | ||
https://hackaday.com/2023/08/17/fluorescent-filament-makes-object-identification-easier/ | Fluorescent Filament Makes Object Identification Easier | Navarre Bartz | [
"3d Printer hacks"
] | [
"3d printer filament",
"CSAIL",
"FDM",
"infrared",
"infraredtags",
"ir",
"label",
"machine readable",
"machine vision",
"mit",
"mit csail",
"qr code"
] | QR codes are a handy way to embed information, but they aren’t exactly pretty. New work from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) have a new way to produce high contrast QR codes that are
invisible
. [PDF]
If this sounds familiar, you may remember CSAILs previous project
embedding QR co... | 14 | 3 | [
{
"comment_id": "6673603",
"author": "WereCatf",
"timestamp": "2023-08-17T08:46:40",
"content": "Why would any thieves be lugging any boxes around, when it’d be far easier to just stuff the valuables themselves and anything else they want to grab with them into a gym bag or similar?",
"parent_id... | 1,760,372,199.133206 | ||
https://hackaday.com/2023/08/16/bringing-an-adm-3a-back-to-life/ | Bringing An ADM-3A Back To Life | Chris Lott | [
"Repair Hacks",
"Retrocomputing"
] | [
"ADM-3A",
"cataract",
"crt",
"Lear Siegler",
"terminal"
] | [David] at Usagi Electric ended up with an old Lear Siegler ADM-3A terminal in a trade a couple of years ago. But the CRT face was plagued with so-called cataracts, and the condition of the insides was unknown. The video ( below the break )
shows the restoration process
, which went quite smoothly. [David] was relieved... | 23 | 16 | [
{
"comment_id": "6673561",
"author": "I'm not that old, am I?",
"timestamp": "2023-08-17T05:29:07",
"content": "When I was using ADM-3A terminals in school, my favorite feature was “This is not a keypunch.”The line editor on the Cyber 7600 really did treat the terminal as a “glass TTY”.If I recall ... | 1,760,372,199.076471 | ||
https://hackaday.com/2023/08/16/the-dipole-antenna-isnt-as-simple-as-it-appears/ | The Dipole Antenna Isn’t As Simple As It Appears | Dan Maloney | [
"Radio Hacks"
] | [
"antenna",
"bandwidth",
"dipole",
"frequency",
"impedance",
"Reactive",
"resistive",
"vna",
"wavelength"
] | Dipole antennas are easy, right? Just follow the formula, cut two pieces of wire, attach your feedline, and you’re on the air. But then again, maybe not. You’re always advised to cut the legs a little long so you can trim to the right length, but why? Shouldn’t the math just be right? And what difference does wire cho... | 47 | 11 | [
{
"comment_id": "6673577",
"author": "Dude",
"timestamp": "2023-08-17T06:10:42",
"content": "Long story short: the math assumes things like the speed of light in vacuum, but adding air and other media in between changes the speed of light slightly, so the math goes off.",
"parent_id": null,
... | 1,760,372,199.440364 | ||
https://hackaday.com/2023/08/16/a-nifty-tool-for-counting-neopixels/ | A Nifty Tool For Counting Neopixels | Lewin Day | [
"LED Hacks"
] | [
"neopixel",
"Neopixels",
"ws2812b"
] | Picture it. You’ve got a big roll of NeoPixels, but you have no idea how many are actually on the tape. Or you need to count how many WS2812B LEDs are in a display to properly plan your animations.
Fear not, for [Gustavo Laureano] has built the perfect tool for counting the addressable LEDs.
The tool is based on a Rasp... | 25 | 6 | [
{
"comment_id": "6673512",
"author": "paulvdh",
"timestamp": "2023-08-16T23:38:53",
"content": "Fun little project but it is quite slow. Apart from the actual time it takes to do the measurement, the most logical improvement would be to start with an initial guess (Maybe just “50” or the last measur... | 1,760,372,199.516109 | ||
https://hackaday.com/2023/08/16/new-motherboard-improves-old-crt-television/ | New Motherboard Improves Old CRT Television | Chris Lott | [
"Repair Hacks",
"Video Hacks"
] | [
"crt",
"mainboard",
"multi standard",
"ntsc",
"pal",
"SECAM",
"television"
] | While browsing AliExpress from his digital basement, [Adrian Black] stumbled upon what seemed like a brand-new mainboard for a CRT television set. He decided to take a gamble and ordered one.
It finally arrived, and was indeed a brand new product from 2023
.
DIGITAL MAIN BOARD OF TV, Work ath [sic] HONGXUN products wit... | 37 | 20 | [
{
"comment_id": "6673456",
"author": "Brock",
"timestamp": "2023-08-16T20:23:29",
"content": "These exist due to the hobby arcade market. Enthusiasts/collectors want original CRT displays and sometimes you’ve got a perfectly good tube with a burned out main board that can be brought back to life wit... | 1,760,372,199.354456 | ||
https://hackaday.com/2023/08/16/a-delorean-with-an-electrifying-secret/ | A DeLorean With An Electrifying Secret | Navarre Bartz | [
"Transportation Hacks"
] | [
"car hack",
"car restoration",
"Chevy Bolt",
"DeLorean",
"electric car",
"EV conversion",
"restomod"
] | There are few production cars with as much geek cred as the DMC DeLorean. If you want to kick the nerdiness up a notch without doing a full
Back to the Future
prop-mod, then the next best thing is to
make it an EV
.
[Bill Carlson] took a
1981 DeLorean
and transplanted the drivetrain from a
Chevy Bolt
to electrify this ... | 47 | 9 | [
{
"comment_id": "6673427",
"author": "HaHa",
"timestamp": "2023-08-16T19:09:11",
"content": "Who decides ‘geek cred’?Because a DeLorian is not a car that carries much cred with anybody except ‘Back to the Future’ fans. There might be some ‘geeks’ in that group, but no many.It was a very mediocre car... | 1,760,372,199.71223 | ||
https://hackaday.com/2023/08/16/ask-hackaday-why-retrocomputing/ | Ask Hackaday: Why Retrocomputing? | Al Williams | [
"Ask Hackaday",
"Hackaday Columns",
"Retrocomputing",
"Slider"
] | [
"Ask Hackaday",
"Rant",
"retrocomputing",
"vintage computing"
] | I recently dropped in on one of the Vintage Computer Festival events, and it made me think about why people — including myself — are fascinated with old computer technology. In my case, I lived through a lot of it, and many of the people milling around at VCF did too, so it could just be nostalgia. But there were also ... | 81 | 37 | [
{
"comment_id": "6673382",
"author": "YGDES",
"timestamp": "2023-08-16T17:05:35",
"content": "Just because.Oh and no nagging OS message from a corporate overlord, or forced reboot for unplanned emergency updates. Or ads.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,372,199.87479 | ||
https://hackaday.com/2023/08/16/building-a-diy-cloud-chamber/ | Building A DIY Cloud Chamber | Lewin Day | [
"Science"
] | [
"cloud chamber",
"physics",
"radiation"
] | [RCLifeOn] happened to come into possession of some radioactive uranium ore. He thus decided to
build a cloud chamber
to visualize the products of radioactive decay in a pleasing visual manner.
The construction is fairly straightforward stuff. A 3D-printer build plate was used to heat isopropyl alcohol to a vapor, whil... | 7 | 7 | [
{
"comment_id": "6673359",
"author": "MarB",
"timestamp": "2023-08-16T15:38:40",
"content": "Cloud chamber day?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6673364",
"author": "MarB",
"timestamp": "2023-08-16T15:53:59",
"content": "By the way, t... | 1,760,372,199.753846 | ||
https://hackaday.com/2023/08/16/giving-solar-powers-mortal-enemies-a-dusting-without-wasting-water/ | Giving Solar Power’s Mortal Enemies A Dusting Without Wasting Water | Maya Posch | [
"Engineering",
"Interest",
"Original Art",
"Science"
] | [
"cleaning",
"electrostatic",
"pv solar",
"solar panel",
"solar panel cleaning"
] | A prerequisite for photovoltaic (PV) and concentrated solar power (CSP) technologies to work efficiently is as direct an exposure to the electromagnetic radiation from the sun as possible. Since dust and similar particulates are excellent at blocking the parts of the EM spectrum that determine their efficiency, keeping... | 28 | 12 | [
{
"comment_id": "6673337",
"author": "fiddlingjunky",
"timestamp": "2023-08-16T14:23:41",
"content": "I like that dust intensity map, and how it only shows country-level. There is doubtlessly huge variability with, say, Brazil, Kazakhstan, Australia, and the US.",
"parent_id": null,
"depth":... | 1,760,372,200.067744 | ||
https://hackaday.com/2023/08/16/polaroid-develops-its-pictures-remotely/ | Polaroid Develops Its Pictures Remotely | Bryan Cockfield | [
"Raspberry Pi"
] | [
"developing",
"digital",
"film",
"picture frame",
"polaroid",
"raspberry pi",
"remote"
] | For those who didn’t experience it, it’s difficult to overstate the cultural impact of the Polaroid camera. In an era where instant gratification is ubiquitous, it’s easy to forget that there was a time when capturing a photograph meant waiting for film to be developed or relying on the meticulous art of darkroom proce... | 8 | 5 | [
{
"comment_id": "6673288",
"author": "Krzysztof",
"timestamp": "2023-08-16T11:08:39",
"content": "> To help preserve the spirit of the original Polaroid, at no point is an image saved permanently.If I remember correctly, Polaroids WERE permament photos, just developed in minutes right from camera.",... | 1,760,372,200.109611 | ||
https://hackaday.com/2023/08/16/building-a-peltier-powered-cloud-chamber/ | Building A Peltier-Powered Cloud Chamber | Lewin Day | [
"Science"
] | [
"cloud chamber",
"peltier"
] | If you’ve been watching Oppenheimer and it’s gotten you all excited about the idea of radioactive decay, you might want to visualize it. A cloud chamber is the perfect way to do that,
and [NuclearPhoenix] is here to show us just how to build one.
The build relies on a Peltier device to cool a 10 cm square copper plate ... | 15 | 8 | [
{
"comment_id": "6673262",
"author": "70sJukebox",
"timestamp": "2023-08-16T08:27:07",
"content": "I’ve always loved these things, ever since I was a kid.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6673275",
"author": "mms",
"timestamp": "2023-08-1... | 1,760,372,200.160734 | ||
https://hackaday.com/2023/08/15/vintage-artificial-horizon-is-beautiful-in-motion/ | Vintage Artificial Horizon Is Beautiful In Motion | Lewin Day | [
"classic hacks"
] | [
"artificial horizon",
"avionics"
] | Attitude indicators are super useful if you’re flying a plane, particularly in foggy conditions or over water. They help you figure out which way the plane is pointing relative to the unforgiving ground below. [Hack Modular] has been toying with a few,
and even figured out how to get them powered up!
The attitude indic... | 10 | 7 | [
{
"comment_id": "6673280",
"author": "Joshua",
"timestamp": "2023-08-16T10:13:26",
"content": "“They have the beautiful vintage glow that you only get from filament bulbs and deftly painted instrumentation.”Absolutely. I hope that we get that back, eventually.With new materials or luminous gases, ma... | 1,760,372,200.204184 | ||
https://hackaday.com/2023/08/15/dielectric-mirror-shines-bright/ | Dielectric Mirror Shines Bright | Al Williams | [
"Science"
] | [
"3m",
"dielectric mirror",
"mirror"
] | We knew the mirrors in our house were not really very good mirrors, optically speaking. Your mirror eats up 20 to 40 percent of the light that hits it. High-quality first-surface mirrors are better, but [Action Lab] has a video (see below) of something really different:
a polymer dielectric mirror
with 99.5% reflectivi... | 31 | 13 | [
{
"comment_id": "6673209",
"author": "Comedicles",
"timestamp": "2023-08-16T03:14:13",
"content": "Perfect for the Star Wars speeder illusion that uses mirrors.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6673214",
"author": "Brandon Hicks",
"timest... | 1,760,372,199.997837 | ||
https://hackaday.com/2023/08/15/2023-cyberdeck-challenge-a-ham-radio-cyberdeck/ | 2023 Cyberdeck Challenge: A Ham Radio Cyberdeck | Lewin Day | [
"contests",
"Cyberdecks"
] | [
"2023 Cyberdeck Challenge",
"cyberdeck",
"ham radio"
] | Cyberdecks rock because their homebrewed nature lets them feature all kinds of nifty additional functionality. [Kaushlesh] has built his deck with an eye to ham radio use,
and it’s a rugged and impressive thing.
The deck is built into a weatherproof enclosure, with various 3D-printed parts helping to integrate the comp... | 27 | 9 | [
{
"comment_id": "6673202",
"author": "Maker For Real",
"timestamp": "2023-08-16T01:18:07",
"content": "When will we stop glorifying raspberry pi case-mods?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6673210",
"author": "Dan",
"timestamp":... | 1,760,372,200.274847 | ||
https://hackaday.com/2023/08/15/hackaday-prize-2023-parol6-a-gpl-desktop-robotic-arm/ | Hackaday Prize 2023: PAROL6 – A GPL Desktop Robotic Arm | Dave Rowntree | [
"Robots Hacks"
] | [
"6 DOF Robot arm",
"planetary gearbox",
"rs485",
"stepper motor",
"STM32F4",
"TMC2209"
] | Parol 6 is a 3D-printed six-axis robot arm
created by [Petar Crnjak] as a combination of the principles from a few previous projects. Aside from a pneumatic gripper, each axis is driven by a stepper motor, with at least a few of these axes being driven through a metal planetary gearbox for extra precision and torque.
F... | 8 | 3 | [
{
"comment_id": "6673175",
"author": "VeeDee",
"timestamp": "2023-08-15T21:02:55",
"content": "Open loop control and repeatability 🤡",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6673181",
"author": "Dave Rowntree",
"timestamp": "2023-08-15... | 1,760,372,200.499604 | ||
https://hackaday.com/2023/08/15/nfc-puts-a-stake-in-the-ground/ | NFC Puts A Stake In The Ground | Michael Shaub | [
"3d Printer hacks",
"News"
] | [
"3d print",
"3d printed",
"database",
"garden",
"gardening",
"NFC",
"NFC tag",
"website"
] | Sometimes we have a new part or piece of tech that we want to use, and it feels like a solution looking for a problem. Upon first encountering NFC Tags, [nalanj] was looking for an application and thought they might make a great update to old-fashioned plant markers in a garden. Those are usually small and, being outsi... | 21 | 10 | [
{
"comment_id": "6673165",
"author": "Andrzej",
"timestamp": "2023-08-15T19:35:12",
"content": "I know it’s commonplace today, but to me it seems just “wrong” to use “the cloud” for the simplest of tasks that require no external network whatsoever.But whatever, this is just the company’s ad pretendi... | 1,760,372,200.448055 | ||
https://hackaday.com/2023/08/15/keebin-with-kristina-the-one-with-the-qwerty-drum-set/ | Keebin’ With Kristina: The One With The QWERTY Drum Set | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"drum typewriter",
"kaleidograph",
"keytar",
"solenoid",
"the kaleidograph",
"too many typewriters",
"typewriter collection",
"wearable keyboard"
] | What does portability in a keyboard mean to you? For Hackaday’s own [Brian McEvoy],
the image evokes that quintessential 80s instrument, the keytar
.
But those left-hand keys aren’t just for show — they’re macro keys. It runs on an Adafruit Feather 32u4 Bluefruit, so [Brian] can forego the cord and rock out all over th... | 1 | 1 | [
{
"comment_id": "6673205",
"author": "crispernaki",
"timestamp": "2023-08-16T01:56:08",
"content": "Eric Carr! Yay!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,200.598985 | ||
https://hackaday.com/2023/08/15/uchaser-follows-you-anywhere/ | UChaser Follows You Anywhere | Matthew Carlson | [
"Microcontrollers",
"Tool Hacks"
] | [
"ESP-Now",
"ESP32",
"HC-SR04",
"ultrasonic"
] | If you’ve been making up for lost years of travel in 2023, you might have seen a fellow traveler in the airport terminal or train station walking with their luggage happily careening behind them. [Jesse R] and [Brian Lindahl] wanted more of that. They wanted an
open-source, low-cost system that could be put in anything... | 16 | 12 | [
{
"comment_id": "6673118",
"author": "Jesse R",
"timestamp": "2023-08-15T15:42:14",
"content": "Savvy readers may remember this concept fromhttps://hackaday.com/2012/04/20/one-hackaday-readers-experience-going-on-the-ben-heck-show/After years of people reaching out to replicate this project I’ve dec... | 1,760,372,200.548543 | ||
https://hackaday.com/2023/08/15/screwdrivers-and-nuclear-safety-the-demon-core/ | Screwdrivers And Nuclear Safety: The Demon Core | Al Williams | [
"Featured",
"History",
"Original Art",
"Slider"
] | [
"Manhattan Project",
"nuclear",
"radiation"
] | Harry Daghlian and Louis Slotin were two of many people who worked on the Manhattan Project. They might not be household names, but we believe they are the poster children for safety procedures. And not in a good way.
Harry Daghlian (
CC-BY-SA 3.0
, Arnold Dion)
Slotin assembled the core of the “Gadget” — the plutonium... | 61 | 20 | [
{
"comment_id": "6673092",
"author": "Dude",
"timestamp": "2023-08-15T14:29:28",
"content": "Wasn’t this article done recently? I’ve seen the Slotin incident pop up at least five times in the past few months.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "66... | 1,760,372,200.903578 | ||
https://hackaday.com/2023/08/15/automation-for-the-nes/ | Automation For The NES | Bryan Cockfield | [
"Games"
] | [
"automation",
"controller",
"emulator",
"gaming",
"nes",
"nintendo",
"retrocomputing",
"shift register",
"tool assisted speedrun"
] | Old hardware might not be anywhere close to as powerful as modern technology, but it does have a few perks. Aesthetics can of course drive the popularity of things like retro gaming systems, but the ease of understanding the underpinnings of their inner workings is also critical. The Nintendo Entertainment System, now ... | 11 | 4 | [
{
"comment_id": "6673057",
"author": "adrian",
"timestamp": "2023-08-15T11:13:03",
"content": "Automated gameplay ?I thought the entire point of a game was to play it. A machine to play for you is an interesting exercise but seems inappropriate.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,372,200.744507 | ||
https://hackaday.com/2023/08/15/low-res-arduino-thermal-camera/ | Low Res Arduino Thermal Camera | Al Williams | [
"Arduino Hacks",
"digital cameras hacks"
] | [
"arduino",
"thermal camera"
] | Do you know how you see those cheap telescopes at the department store? The box has beautiful pictures that probably came from the Hubble. What you will see is somewhat different. You have to carefully look at [upir’s]
Arduino thermal camera project
because it intersperses pictures of what you expect an 8×8 sensor will... | 10 | 5 | [
{
"comment_id": "6673063",
"author": "Hezza Davie",
"timestamp": "2023-08-15T12:06:15",
"content": "Wait, was half that video an ad? Thumbnail was also misleading as an added bonus.Project is OK, quite fun, nothing complicated. Uploader and to a lesser extent the HaD writer are in the sin bin.",
... | 1,760,372,200.795251 | ||
https://hackaday.com/2023/08/14/a-guide-to-field-stripping-your-voyager-tricorder/ | A Guide To Field Stripping YourVoyagerTricorder | Tom Nardi | [
"handhelds hacks",
"Teardown"
] | [
"prop",
"reproduction",
"star trek",
"tricorder"
] | For the last few years, [Mangy_Dog] has been working on what is easily the most technically and aesthetically impressive
Star Trek
tricorder prop the world has ever seen. With each new version of the hardware we’ve gotten the occasional peek under the hood or source code walk-through, but these limited presentations ha... | 8 | 3 | [
{
"comment_id": "6672992",
"author": "Joshua",
"timestamp": "2023-08-15T05:27:47",
"content": "I think it’s quite fascinating and admirable that the community of the Tricorder hobby/sub-genre has always been trying to go beyond making props. Most if in not all homebrewed Tricorders or Scanners (ENT)... | 1,760,372,201.069782 | ||
https://hackaday.com/2023/08/14/thin-client-wysens-up-to-become-openwrt-router/ | Thin Client Wysens Up To Become OpenWrt Router | Jonathan Bennett | [
"computer hacks"
] | [
"openwrt",
"thin client",
"Wyse"
] | For some of us, unused hardware lying around just calls to be used. It seems like [Miles Goodhew] heard the call, and wanted to put a Dell Wyse 3040 thin client to use —
in this case as a wireless router
. It seems simple enough. OpenWrt supports x64_64 targets, and the thin client has 2G of ram and 8G of flash. It sho... | 27 | 13 | [
{
"comment_id": "6672974",
"author": "daev",
"timestamp": "2023-08-15T02:40:28",
"content": "it’d be a good candidate for a router7 based install (https://router7.org), as it uses a mainline kernel and isn’t strongly opinionated regarding serial devices.",
"parent_id": null,
"depth": 1,
... | 1,760,372,201.018986 | ||
https://hackaday.com/2023/08/14/a-speaker-with-dancing-ferrofluid/ | A Speaker With Dancing Ferrofluid | Al Williams | [
"Art",
"Portable Audio Hacks"
] | [
"ferrofluid",
"speaker"
] | A speaker project isn’t usually very different, but we couldn’t help but notice [Electronoob’s] latest speaker not for its audio performance but because it
features dancing ferrofluid
and is an unusual work of art. The housing is 3D printed and includes some translucent portions for LEDs.You can see and hear the speake... | 2 | 1 | [
{
"comment_id": "6672949",
"author": "Jon H",
"timestamp": "2023-08-14T23:17:39",
"content": "It would be interesting if the ferrofluid particles could be colored somehow. Perhaps according to weight, or size. And then if there’s any sorting by weight or size in how the particles respond to the magn... | 1,760,372,200.945963 | ||
https://hackaday.com/2023/08/14/adding-power-over-ethernet-support-to-a-mac-mini/ | Adding Power Over Ethernet Support To A Mac Mini | Maya Posch | [
"Mac Hacks"
] | [
"mac mini",
"PoE"
] | Wiring up a Mac Mini’s new PoE module. (Credit: Ivan Kuleshov)
Despite all the fancy features on modern Apple Mac systems like USB-C and Thunderbolt, they have one glaring omission: the absolute lack of any form of Power-over-Ethernet (PoE). This is an issue that [
Ivan Kuleshov]
sought to rectify
with some delicate bo... | 10 | 3 | [
{
"comment_id": "6672945",
"author": "KenN",
"timestamp": "2023-08-14T23:06:23",
"content": "I’ve found it easiest to add PoE with custom cabling that splits out the power-carrying conductors before the computer, or by fabricating a splitter box with an RJ45 jack for the cable to the powered device,... | 1,760,372,201.124891 | ||
https://hackaday.com/2023/08/14/a-digital-camera-for-the-1984-market/ | A Digital Camera For The 1984 Market | Jenny List | [
"digital cameras hacks"
] | [
"digital camera",
"ega",
"ESP32-CAM",
"TGA"
] | Digital cameras are a ubiquitous consumer and professional product here in 2023, and because of the wide availability of parts it’s relatively straightforward to construct one for yourself. Four decades ago though, film was king, but
that hasn’t stopped [
Georg Lukas
] from building a digital camera for the 1984 market... | 17 | 6 | [
{
"comment_id": "6672901",
"author": "ono",
"timestamp": "2023-08-14T18:44:02",
"content": "CCDs were available and ADCs too. No need to decap a poor RAM chip.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6673012",
"author": "Jan",
"timesta... | 1,760,372,201.229465 | ||
https://hackaday.com/2023/08/14/2023-hackaday-supercon-tickets-on-sale-now/ | 2023 Hackaday Supercon Tickets On Sale Now! | Elliot Williams | [
"News",
"Slider"
] | [
"2023 Hackaday Supercon",
"2023 Hackaday Superconference"
] | The 2023 Hackaday Superconference isn’t taking place until November, but the time to
get your tickets
is
right now
.
Hackaday’s Supercon is far and away the coolest hardware-focused hacker con of the year, and if you’re Hackaday, you absolutely want to be there. Honestly, just the crowd that Supercon brings together is... | 12 | 7 | [
{
"comment_id": "6672820",
"author": "fid",
"timestamp": "2023-08-14T16:12:57",
"content": "I can hear The Monkeys singing “I’m a believer.”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6672821",
"author": "fid",
"timestamp": "2023-08-14T16... | 1,760,372,201.173183 | ||
https://hackaday.com/2023/08/14/black-graphics-on-your-tv-for-a-greener-world/ | Black Graphics On Your TV, For A Greener World? | Jenny List | [
"green hacks"
] | [
"carbon footprint",
"graphics",
"power",
"tv"
] | Can you really save energy by carefully choosing the colors displayed on a TV screen? Under some conditions, yes. Or at least that’s the conclusion of a team at the BBC that looked at reducing the energy consumption impact of their output by using what they call
Lower Carbon Graphics
. In short, they’re trying to ensur... | 95 | 19 | [
{
"comment_id": "6672803",
"author": "adrian",
"timestamp": "2023-08-14T15:34:40",
"content": "Maybe the set manufacturers could turn the screen off when a static image is displayed for long enough ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6672849",
... | 1,760,372,201.376216 | ||
https://hackaday.com/2023/08/14/this-3d-scanner-uses-a-sensor-you-might-not-know-about/ | This 3D Scanner Uses A Sensor You Might Not Know About | Jenny List | [
"Laser Hacks"
] | [
"3d scanner",
"laser",
"laser displacement"
] | The huge diversity of sensors and other hardware which our community now has access to seems comprehensive, but there remain many parts which have made little impact due to cost or scarcity. It’s one of these which [Enginoor] has taken for the sensor in a 3D scanner,
an industrial laser displacement sensor.
This sensor... | 24 | 6 | [
{
"comment_id": "6672750",
"author": "imqqmi",
"timestamp": "2023-08-14T11:35:11",
"content": "Maybe on a 5 axes head it could scan an object on most of its sides? Advantage is that no contact with the object is needed like with touch probes. A high resolution (sub mm) scanner for small objects of a... | 1,760,372,201.517831 | ||
https://hackaday.com/2023/08/14/home-network-organization-gets-out-of-hand/ | Home Network Organization Gets Out Of Hand | Chris Lott | [
"Network Hacks",
"Tech Hacks"
] | [
"cable management",
"home office",
"network",
"rack mount server"
] | [SpookyGhost] has a big home network, and has taken cable management and server organization to the extreme. He has written about individual components before, but
this blog post brings it all together
and reviews the entire system. The networking gear is installed in a closet and mounted in a 25U tall 19-inch rack. Fr... | 59 | 19 | [
{
"comment_id": "6672689",
"author": "BsAtHome",
"timestamp": "2023-08-14T08:21:07",
"content": "Impressive electricity bill that must be for a home server/network.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6672697",
"author": "Manfred",
... | 1,760,372,201.618777 | ||
https://hackaday.com/2023/08/13/linux-kernel-from-first-principles/ | Linux Kernel From First Principles | Al Williams | [
"Linux Hacks",
"Software Development"
] | [
"kernel",
"linux"
] | Want to learn the internals of the Linux kernel? Version 6.5-rc5 has about 36 million lines of code in it, so good luck! [Seiya] has a different approach. Go back to the beginning and examine
the 0.01 version of the kernel
. Now you are talking about 10,000 lines and, removing comments and blanks, way less.
Sure, some ... | 13 | 9 | [
{
"comment_id": "6672758",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-08-14T12:19:36",
"content": "Yes! I WHAT to learn about the internals of the Linux kernel!B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6672777",
"author": ... | 1,760,372,201.801292 | ||
https://hackaday.com/2023/08/13/update-your-chinese-radio-without-the-pain/ | Update Your Chinese Radio Without The Pain | Jenny List | [
"Software Hacks"
] | [
"firmware update",
"Quansheng",
"webserial"
] | The new hotness in cheap radios this year has been the Quansheng UV-K5, a Chinese handheld transceiver with significant RF abilities and easy modding. The amateur radio community have seized upon it with glee and already reverse-engineered much of the firmware, but flashing the thing has always required a minor effort.... | 45 | 9 | [
{
"comment_id": "6672628",
"author": "NS",
"timestamp": "2023-08-14T02:08:32",
"content": "Baofeng UV-5R is good enough for an analog FM radio. That other thing is no better than Baofeng.I would only switch from Baofeng, once I find a DMR Digital Mode Radio",
"parent_id": null,
"depth": 1,
... | 1,760,372,201.753712 | ||
https://hackaday.com/2023/08/13/hackaday-links-august-13-2023/ | Hackaday Links: August 13, 2023 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"ai",
"debunk",
"eula",
"flip",
"hackaday links",
"heist",
"interconnect",
"LEO",
"LK-99",
"machine learning",
"MEO",
"orbit",
"Pimoroni",
"research platform",
"room temperature superconductor",
"Scripps",
"semiconductor",
"skepticism",
"space junk",
"superconductor",
"terms ... | Remember that time when the entire physics community dropped what it was doing to replicate the extraordinary claim that a room-temperature semiconductor had been discovered? We sure do, and if it seems like it was just yesterday, it’s probably because it pretty much was.
The news of LK-99
, a copper-modified lead apat... | 14 | 6 | [
{
"comment_id": "6672606",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-08-13T23:15:46",
"content": "So long FLIP, I recall reading about your introduction in grade school!I don’t suppose I could buy it for a song, could I?",
"parent_id": null,
"depth": 1,
"repli... | 1,760,372,201.675152 | ||
https://hackaday.com/2023/08/13/portable-1990s-pos-will-strain-your-back/ | Portable 1990s POS Will Strain Your Back | Chris Lott | [
"Phone Hacks",
"Teardown"
] | [
"mobile phone",
"motorola",
"point of sale",
"portable"
] | [JR] over at [Tech Throwback] got ahold of an unusual piece of gear recently —
a portable Point of Sale (POS) credit card machine from the late 1990s
(video, embedded below the break ). Today these machines can be just a small accessory that works in conjunction with your smart phone, but only the most dedicated mercha... | 4 | 4 | [
{
"comment_id": "6672612",
"author": "Thinkerer",
"timestamp": "2023-08-13T23:51:16",
"content": "What is the quote about a good idea at the wrong time? From what little I can find, they were trying to be Square three decades too early. From Bloomberg:US Wireless Data Inc/OldU.S. Wireless Data Inc... | 1,760,372,201.849114 | ||
https://hackaday.com/2023/08/13/making-things-square-in-three-dimensions/ | Making Things Square In Three Dimensions | Bryan Cockfield | [
"Tool Hacks"
] | [
"carpentry",
"diagonals",
"metalworking",
"saddle",
"square",
"string",
"three dimensions",
"Twist",
"welding"
] | Measure twice, cut once is excellent advice when building anything, from carpentry to metalworking. While this adage will certainly save a lot of headache, mistakes, and wasted material, it will only get you part of the way to constructing something that is true and square, whether that’s building a shelf, a piece of f... | 32 | 8 | [
{
"comment_id": "6672526",
"author": "jawnhenry",
"timestamp": "2023-08-13T17:53:53",
"content": "One of the two absolute requirements for graduation from the world-class engineering school I attended was the making of a 1-inch cube out of iron or steel. This requirement was, thankfully, dropped wel... | 1,760,372,201.920438 | ||
https://hackaday.com/2023/08/13/eliminating-charge-carrier-trapping-in-organic-semiconductors/ | Eliminating Charge-Carrier Trapping In Organic Semiconductors | Maya Posch | [
"Science"
] | [
"charge trap",
"oled",
"organic semiconductor"
] | For organic semiconductors like the very common organic light-emitting diode (OLED), the issue of degradation due to contaminants that act as charge traps is a major problem. During the development of OLEDs, this was very pronounced in the difference between the different colors and the bandgap which they operated in. ... | 4 | 2 | [
{
"comment_id": "6672507",
"author": "Gravis",
"timestamp": "2023-08-13T16:55:37",
"content": "Note: TBPi, Trz, and Cz are chemical structures.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6672557",
"author": "Stu",
"timestamp": "2023-08-13T19:45:51"... | 1,760,372,201.962894 | ||
https://hackaday.com/2023/08/13/stuffing-a-32-pin-chip-into-a-28-pin-socket/ | Stuffing A 32-Pin Chip Into A 28-Pin Socket | Dan Maloney | [
"Retrocomputing"
] | [
"27C512",
"39SF010",
"65uino",
"bodge",
"eeprom",
"flash",
"pull-up",
"retrocomputing",
"rom"
] | What’s the difference between a 64k ROM in a 28-pin DIP and a 128k ROM in a 32-pin DIP? Aside from the obvious answers of “64k” and “four pins,” it turns out that these two chips have a lot in common, enough so that
it only takes a little bodging to make them interchangeable
— more or less.
For a variety of reasons rev... | 29 | 8 | [
{
"comment_id": "6672434",
"author": "MarB",
"timestamp": "2023-08-13T11:41:04",
"content": "Maybe it’s time to break away from the Arduino footprint and design a proper PCB.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6672436",
"author": "CodeAsm... | 1,760,372,202.033903 | ||
https://hackaday.com/2023/08/13/modern-demo-for-a-casio-pb-700-pocket-computer-plotter/ | Modern Demo For A Casio PB-700 Pocket Computer Plotter | Chris Lott | [
"Retrocomputing"
] | [
"casio",
"microcassette",
"Midjourney",
"pb-700",
"plotter",
"pocket pc"
] | [Fred] has a Casio PB-700 pocket calculator / computer, complete with the companion docking station featuring a four-color pen plotter, model FA-10, and a microcassette tape recorder, model CM-1. He really wanted to see what this plotter could do, but there were no demos that he could find. So despite only having one w... | 9 | 5 | [
{
"comment_id": "6672400",
"author": "Amenjet",
"timestamp": "2023-08-13T08:09:39",
"content": "I had a play with a similar mechanism here:https://youtu.be/gj6BrnpXvRsIt’s not actually the same mechanism, it’s a bit larger.there is also a typewriter that uses a similar mechanism to write characters:... | 1,760,372,202.086842 | ||
https://hackaday.com/2023/08/11/hackaday-podcast-231-harnessing-sparks-hacking-food-and-leaving-breadcrumbs/ | Hackaday Podcast 231: Harnessing Sparks, Hacking Food, And Leaving Breadcrumbs | Al Williams | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Editor-in-Chief Elliot Williams and Al Williams don’t always agree on the best text editor to use, but they do — usually — agree on what makes a great hack. This week, they found plenty of Hackaday posts to discuss, ranging from exotic eavesdropping on keyboards, oscilloscopes, and several posts of interest to anyone w... | 0 | 0 | [] | 1,760,372,202.127526 | ||
https://hackaday.com/2023/08/11/grblhal-cnc-controller-based-on-rp2040-pico/ | GrblHAL CNC Controller Based On RP2040 Pico | Chris Lott | [
"cnc hacks",
"Microcontrollers"
] | [
"cnc",
"grbl",
"grblHAL",
"rp2040"
] | [Phil Barrett] designed a new CNC controller
breakout board called the PicoCNC
which uses the Raspberry Pi Pico RP2040 module and grblHAL. It packs a bunch of features typical of these controllers, and if you use the Pico W, you get WiFi connectivity along with USB. And if you don’t want connectivity, you can execute G... | 18 | 6 | [
{
"comment_id": "6671903",
"author": "paulvdh",
"timestamp": "2023-08-11T15:14:05",
"content": "On first sight, this project is quite similar to a Teensy breakout board:https://hackaday.com/2020/11/11/teensy-controller-for-powerful-cncs/Teensy can also work with Ethernet, which gives inherent extra ... | 1,760,372,202.201533 | ||
https://hackaday.com/2023/08/11/this-week-in-security-its-con-season/ | This Week In Security: It’s Con Season | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"blackhat",
"defcon",
"This Week in Security"
] | It must be Blackhat/DEFCON season. Up first in the storm of named vulnerabilities, we have
Downfall
. The
PDF has the juicy details
here. It’s quite similar to the Zenbleed issue from last week, in that it abuses speculative execution to leak data via a hidden register. Unlike Zenbleed, this isn’t direct access, but us... | 8 | 5 | [
{
"comment_id": "6671883",
"author": "zoobab",
"timestamp": "2023-08-11T14:04:04",
"content": "CCC Camp next week near Berlin:https://events.ccc.de/camp/2023/infos/index.htmlI won’t be there this year :-(",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "667189... | 1,760,372,202.677828 | ||
https://hackaday.com/2023/08/11/using-jtag-to-dump-the-xboxs-secret-boot-rom/ | Using JTAG To Dump The Xbox’s Secret Boot ROM | Maya Posch | [
"Xbox Hacks"
] | [
"hacking the xbox",
"interposer",
"jtag",
"xbox"
] | When Microsoft released its first entry into the video game console market with the Xbox, a lot of the discussions at the time revolved around the fact that it used a nearly off-the-shelf Intel CPU and NVIDIA GPU solution. This made it quite different from the very custom consoles from Nintendo and Sony, and invited th... | 13 | 6 | [
{
"comment_id": "6671850",
"author": "Mathias",
"timestamp": "2023-08-11T11:21:12",
"content": "I wonder if it would have been possible to disconnect TRST by CNC-drilling from the other side. Some research suggests, og Xbox was 4 layers with GND and Power on L2&3. So that might be possible. The ques... | 1,760,372,202.369881 | ||
https://hackaday.com/2023/08/11/usb-c-cable-tester-is-compact-and-affordable/ | USB-C Cable Tester Is Compact And Affordable | Chris Lott | [
"Tech Hacks",
"Tool Hacks"
] | [
"cable tester",
"test equipment",
"usb",
"USB C"
] | We’ve all been bitten before by USB cables which were flaky, built for only charging, or just plain broken. With the increased conductor count and complexity of USB Type C, there are many more ways your cable can disappoint you. Over in Austria, [Peter Traunmüller] aka [petl] has designed the
C2C caberQU USB C cable te... | 32 | 11 | [
{
"comment_id": "6671824",
"author": "Slurm",
"timestamp": "2023-08-11T08:33:02",
"content": "They were also featured and tested in the latest EEVblog Mailbag (Episode 1558 @ 30m 36s).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6671825",
"author": "Gre... | 1,760,372,202.525582 | ||
https://hackaday.com/2023/08/10/an-lm386-oscillator-thanks-to-tungsten-under-glass/ | An LM386 Oscillator Thanks To Tungsten Under Glass | Dan Maloney | [
"classic hacks",
"Misc Hacks"
] | [
"agc",
"automatic gain control",
"feedback",
"incandescent",
"lm386",
"oscillator",
"positive temperature Coefficient",
"PTC",
"tungsten",
"wien bridge"
] | Once ubiquitous, the incandescent light bulb has become something of a
lucerna non grata
lately. Banned from home lighting, long gone from flashlights, and laughed out of existence by automotive engineers, you have to go a long way these days to find something that still uses a tungsten filament.
Strangely enough,
this... | 41 | 13 | [
{
"comment_id": "6671791",
"author": "elwing",
"timestamp": "2023-08-11T06:20:07",
"content": "“We were honestly a bit surprised that the FFT analysis showed as many harmonics as it did” well, they are at around -60dB compared to F0… that’s definitely nice for a simple negative feedback oscillator….... | 1,760,372,202.452852 | ||
https://hackaday.com/2023/08/10/install-chimeraos-and-never-leave-the-sofa/ | Install ChimeraOS And Never Leave The Sofa | Dave Rowntree | [
"Games"
] | [
"Chimera",
"os",
"remote gaming",
"retro gaming",
"steam deck"
] | There are some projects that initially don’t seem to make sense, but actually turn out to have valid use cases.
ChimeraOS appears to be one of those
. The idea is that if you own a gaming PC, but it is not necessarily located where you want to be all the time (like in a gaming den or office for example) then ChimeraOS ... | 9 | 6 | [
{
"comment_id": "6671764",
"author": "Despondent",
"timestamp": "2023-08-11T03:53:24",
"content": "Meh",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6671790",
"author": "techelement",
"timestamp": "2023-08-11T06:18:25",
"content": "I don’t get it.... | 1,760,372,202.721193 | ||
https://hackaday.com/2023/08/12/opening-a-curta-with-great-care/ | Opening A Curta — With Great Care | Chris Lott | [
"handhelds hacks",
"Teardown",
"Tool Hacks"
] | [
"Curta",
"mechanical calculator"
] | We’ve always admired Curta mechanical calculators, and would be very hesitant to dismantle one. But [Janus Cycle] did just that — and succeeded. A friend sent him a Curta Model 2 calculator that was frozen up. Just opening the case involved percussive force to remove a retaining pin, and once inside he discovered the m... | 29 | 22 | [
{
"comment_id": "6672381",
"author": "Drone",
"timestamp": "2023-08-13T06:18:23",
"content": "That YouTube video had 100% of my attention. Thank You, DavidAnd of-course: “42 is The Answer to the Ultimate Question of Life, the Universe, and Everything”.[1]1.https://en.wikipedia.org/wiki/Phrases_from_... | 1,760,372,204.287769 | ||
https://hackaday.com/2023/08/12/liquid-metal-battery-goes-into-production/ | Liquid Metal Battery Goes Into Production | Bryan Cockfield | [
"Battery Hacks"
] | [
"ambri",
"antimony",
"base load",
"battery",
"battery storage",
"grid storage",
"liquid metal",
"mit",
"renewables"
] | The news is rife with claims of the next great thing in clean energy generation, but most of these technologies never make it to production. Whether that’s due to cost issues, production, or scalability, we’re often teased with industry breakthroughs that never come to fruition. Multi-layered solar panels, wave and tid... | 89 | 23 | [
{
"comment_id": "6672334",
"author": "Robert D",
"timestamp": "2023-08-13T02:28:48",
"content": "Half the cost of current battery technology, and 95% capacity after 20 years. Probably uses LK99 electrodes too. Sounds way too good to be true.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,204.784725 | ||
https://hackaday.com/2023/08/12/bench-power-supply-turned-realistic-flight-sim-panel/ | Bench Power Supply Turned Realistic Flight Sim Panel | Tom Nardi | [
"Peripherals Hacks",
"Xbox Hacks"
] | [
"flight simulator",
"microsoft flight simulator",
"xbox"
] | Flight simulator software has been available for about as long as desktop PCs have been a thing, but modern incarnations such as 2020’s
Microsoft Flight Simulator
have really raised the bar — not only graphically, but in terms of interactivity. There’s a dizzying array of switches and buttons that you can fiddle with i... | 0 | 0 | [] | 1,760,372,204.408104 | ||
https://hackaday.com/2023/08/12/blackberry-pi-puts-desktop-linux-in-your-pocket/ | Blackberry Pi Puts Desktop Linux In Your Pocket | Tom Nardi | [
"handhelds hacks",
"Raspberry Pi"
] | [
"blackberry",
"handheld computer",
"linux",
"Raspberry Pi Zero"
] | Let’s face it — Android wasn’t what most of us had in mind when we imagined having Linux running on our phones. While there’s a (relatively) familiar kernel hiding at the core of Google’s mobile operating system, the rest of the environment is alien enough that you can’t run Linux software on it without jumping through... | 32 | 9 | [
{
"comment_id": "6672275",
"author": "Anonymous",
"timestamp": "2023-08-12T20:59:25",
"content": "Let’s face it, Raspberry Pi wasn’t what most of us want when we talk about SBC: overpriced, outdated hardware with low performance/watt.Outperformed by any metric in their own ARM SBC, make no sense to ... | 1,760,372,204.36501 | ||
https://hackaday.com/2023/08/12/inside-a-cordless-soldering-station/ | Inside A Cordless Soldering Station | Al Williams | [
"Teardown",
"Tool Hacks"
] | [
"bluetooth",
"cordless soldering iron",
"soldering iron",
"supercapacitor"
] | There was a time when soldering stations were unusual in hobby labs. These days, inexpensive stations are everywhere. [Kerry Wong] looks at the
TS1C station, which is tiny and cordless
. As he points out, cordless irons are not new, but modern battery technology has made them much more practical. However, this iron doe... | 17 | 10 | [
{
"comment_id": "6672219",
"author": "Daniel Dunn",
"timestamp": "2023-08-12T17:18:19",
"content": "Rather than a capacitor, they could use LTO batteries. If it’s a lithium capacitor the cycle life might not be infinite anyway.Hopefully Pine64 will make a next gen cheap version!",
"parent_id": n... | 1,760,372,204.588154 | ||
https://hackaday.com/2023/08/12/blinded-with-science/ | Blinded With Science | Elliot Williams | [
"Hackaday Columns",
"News",
"Rants",
"Slider"
] | [
"newsletter",
"rants"
] | So
the room-temperature superconductor was a super disappointment
, but even though the claims didn’t stand up in the end, the even better news is that real science was done. A paper making extraordinary claims came out, the procedure to make LK-99 was followed in multiple labs around the world, and then it was tested.... | 62 | 14 | [
{
"comment_id": "6672166",
"author": "Joshua",
"timestamp": "2023-08-12T14:15:13",
"content": "To the younglings, the title might be a reference to an oldie song, “She Blinded Me with Science”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6672180",
... | 1,760,372,204.963616 | ||
https://hackaday.com/2023/08/12/arbitrary-waveforms-on-the-cheap/ | Arbitrary Waveforms On The Cheap | Al Williams | [
"Tool Hacks"
] | [
"pico",
"test equipment",
"Waveform Generator"
] | A signal generator that can produce the usual sine, square, and triangle waves is handy and has been a staple of electronic benches for decades. Being able to craft custom signals opens up new horizons, but historically, these instruments were expensive. The price has come down, though, and [Rishin Goswami] made a
5 MH... | 26 | 5 | [
{
"comment_id": "6672161",
"author": "DeveloperLen",
"timestamp": "2023-08-12T13:40:56",
"content": "The project I work on at work has need for a multi-channel signal generator. Our standard product has 64 sensors reporting analog data with mid-to-high end precision and accuracy requirements, includ... | 1,760,372,204.657038 | ||
https://hackaday.com/2023/08/12/throw-freecad-some-curves/ | Throw FreeCAD Some Curves | Al Williams | [
"cnc hacks"
] | [
"cad",
"freecad",
"wireframe"
] | [Mango Jelly] got a question from someone trying to model a phone box with a complex curved roof. We have to admit that when we saw it, we knew it would be hard to model well. Naturally, there are several ways it could be one, but [Mango Jelly] used the curves workbench in FreeCAD to
produce a wireframe of the shape
, ... | 43 | 11 | [
{
"comment_id": "6672102",
"author": "Daniel Dunn",
"timestamp": "2023-08-12T08:35:15",
"content": "Super cool! I should probably start using curves more, just rounding with fillets gets visually dull pretty fast. Hopefully we’ll get alternative fillet profiles or to make stuff a bit easier someday... | 1,760,372,204.862393 | ||
https://hackaday.com/2023/08/11/retrotechtacular-building-the-first-computers-for-banking/ | Retrotechtacular: Building The First Computers For Banking | Dan Maloney | [
"Retrotechtacular",
"Slider"
] | [
"banking",
"check",
"cheque",
"ERMA",
"general electric",
"pcb",
"wave solder",
"wire wrap"
] | If you’ve ever wondered where the term “banker’s hours” came from, look back to the booming post-war economy of 1950s America. That’s when banks were deluged with so many checks, each of which had to be reconciled by hand, that they had to shut their doors at 2:00 or 3:00 in the afternoon, just to have a hope of gettin... | 26 | 11 | [
{
"comment_id": "6672092",
"author": "TG",
"timestamp": "2023-08-12T06:07:30",
"content": "Good illustration of how even when things are very difficult and complicated, people find a way. I can hardly believe core memory was ever a thing.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,204.46972 | ||
https://hackaday.com/2023/08/11/a-little-bit-of-science-history-repeating-itself-boyles-list/ | A Little Bit Of Science History Repeating Itself: Boyle’s List | Al Williams | [
"Rants",
"Science"
] | [
"robert boyle",
"science"
] | In a recent blog post, [Benjamin Breen] makes an interesting case that 2023 might
go down in history as the start of a scientific revolution
, and that’s even if LK-99 turns out to be a dud. He points to several biomedical, quantum computing, and nuclear fusion news items this year as proof.
However, we aren’t as convi... | 24 | 8 | [
{
"comment_id": "6672065",
"author": "SB5K",
"timestamp": "2023-08-12T02:16:42",
"content": "For example, scientists have found based on large-diameter binary stars, that modified Newtonian dynamics might be correct. This eliminates the need for “Dark Matter”, which I always found was a bit like epi... | 1,760,372,204.530685 | ||
https://hackaday.com/2023/08/11/solar-boat-makes-waves/ | Solar Boat Makes Waves | Bryan Cockfield | [
"Transportation Hacks"
] | [
"battery bank",
"boat",
"sailboat",
"solar",
"trolling motor"
] | The two best days in a boat owner’s life are the day they buy it, and the day they sell it. At least, that’s the common saying among people who actually spend money to buy a boat. [saveitforparts], on the other hand, looks like he’s going to have many more great days
on this boat than that since he cobbled it together ... | 11 | 8 | [
{
"comment_id": "6672056",
"author": "Myself",
"timestamp": "2023-08-12T01:20:55",
"content": "Brilliant, I’ve had exactly this on my drawing board for years but I don’t think I’d actually use it much, so I’ve not pursued it. Fantastic to see it done by someone who actually makes use of it!My sketch... | 1,760,372,205.008521 | ||
https://hackaday.com/2023/08/11/weather-station-with-distributed-sensors/ | Weather Station With Distributed Sensors | Bryan Cockfield | [
"Wireless Hacks"
] | [
"design",
"ESP-Now",
"ESP32",
"gui",
"modular",
"sensors",
"weather station"
] | Building a weather station is a fairly common project that plenty of us have taken on, and for good reason. They can be built around virtually any microcontroller or full-scale computer, can have as many or few sensors as needed, and range from simple, straightforward projects to more complex systems capable of doing t... | 2 | 2 | [
{
"comment_id": "6672162",
"author": "Dan",
"timestamp": "2023-08-12T13:44:13",
"content": "This is cool.Tangentially, this is the type of project I wish more ham radio enthusiasts would embrace. Instead of wondering why kids aren’t interested in rag-chewing on 20 meters, woo them with the prospect ... | 1,760,372,205.468934 | ||
https://hackaday.com/2023/08/11/hackaday-prize-2023-circuit-scout-lends-a-hand-or-two-for-troubleshooting/ | Hackaday Prize 2023: Circuit Scout Lends A Hand (Or Two) For Troubleshooting | Dan Maloney | [
"The Hackaday Prize",
"Tool Hacks"
] | [
"2023 Hackaday Prize",
"cnc",
"gantry",
"KiCAD",
"pcb",
"pick and place",
"pnp",
"probe",
"testing",
"troubleshooting"
] | Troubleshooting a circuit is easy, right? All you need is a couple of hands to hold the probes, another hand to twiddle the knobs, a pair of eyes to look at the schematic, another pair to look at the circuit board, and, for fancy work, X-ray vision to see through the board so you know what pads to probe. It’s child’s p... | 13 | 9 | [
{
"comment_id": "6671961",
"author": "petsfed",
"timestamp": "2023-08-11T18:59:41",
"content": "Did you read the part where it says you can pick out *testpoints* from your schematic to do the probing on? With a good automation toolchain, this turns the boring and time-consuming process of basic func... | 1,760,372,205.317392 | ||
https://hackaday.com/2023/08/11/ku-go-the-world-war-ii-death-ray/ | Ku-Go: The World War II Death Ray | Al Williams | [
"Featured",
"History",
"Interest",
"Slider"
] | [
"death ray",
"magnetron",
"microwave"
] | Historians may note that World War II was the last great “movie war.” In those days, you could do many things that are impossible today, yet make for great movie drama. You can’t sneak a fleet of ships across the oceans anymore. Nor could you dig tunnels right under your captor’s nose. Another defining factor is that i... | 66 | 13 | [
{
"comment_id": "6671936",
"author": "Ostracus",
"timestamp": "2023-08-11T17:41:57",
"content": "“They did have success on animal tests in 1943. Even two meters away, the weapon caused damage to test animals. Engines didn’t see much effect unless they were totally exposed to the beam.”Wrap them in a... | 1,760,372,205.581089 | ||
https://hackaday.com/2023/08/10/automated-drone-takes-care-of-weeds/ | Automated Drone Takes Care Of Weeds | Bryan Cockfield | [
"drone hacks"
] | [
"agriculture",
"artificial intelligence",
"automation",
"battery swap",
"drone",
"farming",
"FIELD",
"herbicide",
"image recognition",
"landing pad",
"quadcopter",
"weeds"
] | Commercial industrial agriculture is responsible for providing food to the world’s population at an incredibly low cost, especially when compared to most of human history when most or a majority of people would have been involved in agriculture. Now it’s a tiny fraction of humans that need to grow food, while the rest ... | 38 | 14 | [
{
"comment_id": "6671727",
"author": "a_do_z",
"timestamp": "2023-08-10T23:25:40",
"content": "Cool. Got one for pigeons?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671768",
"author": "irox",
"timestamp": "2023-08-11T04:13:33",
"... | 1,760,372,205.265103 | ||
https://hackaday.com/2023/08/10/laser-engraver-uses-all-of-the-dvd-drive/ | Laser Engraver Uses All Of The DVD Drive | Bryan Cockfield | [
"Laser Hacks"
] | [
"arduino",
"cnc",
"dvd drive",
"engraver",
"gcode",
"laser",
"optical drive",
"stepper motor"
] | For the last ten to fifteen years, optical drives have been fading out of existence. There’s little reason to have them around anymore unless you are serious about archiving data or unconvinced that streaming platforms will always be around. While there are some niche uses for them still, we’re seeing more and more get... | 18 | 6 | [
{
"comment_id": "6671673",
"author": "ryanbarrett",
"timestamp": "2023-08-10T20:33:50",
"content": "Uh, no, it uses a laser module that is clearly not from one of the DVD drives.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671674",
"author": "rya... | 1,760,372,205.375703 | ||
https://hackaday.com/2023/08/10/a-hobsons-coupler-leads-to-a-weird-engine/ | A Hobson’s Coupler Leads To A Weird Engine | Al Williams | [
"Parts"
] | [
"Cardan",
"coupling",
"Hobson",
"Robert Murray-Smith",
"universal joint"
] | You want to join two shafts. What do you need? A coupler, of course. If the shafts don’t line up, you might consider an Oldham coupler. But what if the shafts are at a 90-degree angle to each other? Then you need a Hobson’s coupler. [Robert Murray-Smith] has
the 3D printed hookup
for you and a video that you can see be... | 19 | 10 | [
{
"comment_id": "6671633",
"author": "Steven-X",
"timestamp": "2023-08-10T18:40:34",
"content": "That was pretty cool to watch, and made perfect sense as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6671640",
"author": "Pete",
"timestamp": "202... | 1,760,372,205.429257 | ||
https://hackaday.com/2023/08/10/canadian-engineers-they-have-a-ring-about-them/ | Canadian Engineers? They Have A Ring About Them | Al Williams | [
"Hackaday Columns",
"Slider"
] | [
"canada",
"iron ring",
"professional engineering"
] | How can you spot an engineer? It can be tricky, but it is a little easier in Canada. That’s because many Canadian engineers have been through the Ritual of the Calling of an Engineer and wear an iron or steel ring to symbolize their profession. The ring has a very odd history that originated in 1922 as the brainchild o... | 100 | 25 | [
{
"comment_id": "6671597",
"author": "Michael Mirsky",
"timestamp": "2023-08-10T17:15:56",
"content": "I will always remember the excitement and anticipation I felt in the spring of 1978 when the day of the mysterious secret iron ring ceremony approached. Only other engineers were allowed to attend ... | 1,760,372,205.832236 | ||
https://hackaday.com/2023/08/10/pentablinky-when-one-led-is-not-blinky-enough/ | PentaBlinky – When One LED Is Not Blinky Enough | Dave Rowntree | [
"classic hacks",
"LED Hacks"
] | [
"blinky",
"discrete transistors",
"led",
"ring oscillator"
] | [michimartini] over on Hackaday.io loves playing with multivibrator circuits, and has come across a
simple example of a ring oscillator
. This is a discrete transistor RC-delay design utilizing five identical stages, each of which has a transistor that deals with charging and discharging the timing capacitor, passing a... | 4 | 3 | [
{
"comment_id": "6671665",
"author": "ertgretge",
"timestamp": "2023-08-10T20:07:21",
"content": "5b = 3224 hours clock system",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6671953",
"author": "willmore",
"timestamp": "2023-08-11T18:50:07",
"conte... | 1,760,372,205.631046 | ||
https://hackaday.com/2023/08/10/the-world-id-orb-and-the-question-of-what-defines-a-person/ | The World ID Orb And The Question Of What Defines A Person | Maya Posch | [
"Current Events",
"Featured",
"Science",
"Slider"
] | [
"biometrics",
"iris scan",
"world id"
] | Among the daily churn of ‘Web 3.0’, blockchains and cryptocurrency messaging, there is generally very little that feels genuinely interesting or unique enough to pay attention to. The same was true for OpenAI CEO Sam Altman’s Ethereum blockchain-based Worldcoin when it was launched in 2021 while promising many of the s... | 68 | 21 | [
{
"comment_id": "6671543",
"author": "Miles",
"timestamp": "2023-08-10T14:21:41",
"content": "Something you have (fingerprint, iris) should never replace something you know for security.This is a finite amount of information, computers should not be allowed to determine what an individual is based o... | 1,760,372,205.944092 | ||
https://hackaday.com/2023/08/10/weird-lens-allows-light-field-passthrough-for-vr-headset/ | Weird Lens Allows Light Field Passthrough For VR Headset | Donald Papp | [
"Virtual Reality"
] | [
"light field",
"passthrough",
"prototype",
"vr"
] | Light Fields are a subtle but critical element to making 3D video look “real”, and it has little to do with either resolution or field of view. Meta (formerly Facebook) provides a look at
a prototype VR headset
that provides light field passthrough video to the user for a more realistic view of their surroundings, and ... | 16 | 6 | [
{
"comment_id": "6671510",
"author": "Foldi-One",
"timestamp": "2023-08-10T11:54:27",
"content": "I’ve never understood why everyone seems to want active videocamera to screen passthough as the point of research. The best result for “pass through” would be to just let us use our eyes directly – whic... | 1,760,372,205.687604 | ||
https://hackaday.com/2023/08/10/minimizing-stress-on-a-coin-cell-battery/ | Minimizing Stress On A Coin Cell Battery | Bryan Cockfield | [
"Battery Hacks"
] | [
"battery",
"boost converter",
"buck converter",
"coin cell",
"dc-dc",
"life",
"smps",
"switch mode",
"voltage sag"
] | When it comes to powering tiny devices for a long time, coin cell batteries are the battery of choice for things like keyfobs, watches, and even some IoT devices. They’re inexpensive and compact and a great choice for very small electricity needs. Their major downside is that they have a relatively high internal resist... | 20 | 5 | [
{
"comment_id": "6671497",
"author": "DaveJ",
"timestamp": "2023-08-10T10:34:49",
"content": "I smell B.S., energizer all over again.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671584",
"author": "Lee Hart",
"timestamp": "2023-08-10T16:1... | 1,760,372,206.227148 | ||
https://hackaday.com/2023/08/09/myth-tested-dos-cant-multitask/ | Myth Tested: DOS Can’t Multitask | Jenny List | [
"Retrocomputing"
] | [
"dos",
"ms-dos",
"multitasking"
] | It’s a piece of common knowledge, that MS-DOS wasn’t capable of multitasking. For that, the Microsoft-based PC user would have to wait for the 80386, and usable versions of Windows. But like so many such pieces of received Opinion, this one is full of holes. As [Lunduke] investigates,
there were several ways to multita... | 77 | 25 | [
{
"comment_id": "6671425",
"author": "David Kuder",
"timestamp": "2023-08-10T05:13:32",
"content": "Lest ye not forget there was once a multiuser multitasking BASIC operating system for PCs. Yes, someone saw fit to do such a thing, for business users, because BASIC is the only programming language ... | 1,760,372,206.060966 | ||
https://hackaday.com/2023/08/09/why-vr-as-monitor-replacement-is-likely-to-be-terrible-for-a-while-yet/ | Why VR As Monitor Replacement Is Likely To Be Terrible For A While Yet | Donald Papp | [
"Virtual Reality"
] | [
"analysis",
"headset",
"monitor replacement",
"vr"
] | Putting on a headset and using virtual monitors in VR instead of physical ones is a use case that pops up, but is it really something feasible? [Karl Guttag], who has long experience and a deep understanding of the technical challenges that face such devices,
doesn’t seem to think so
.
In his writeup [Karl] often focus... | 26 | 15 | [
{
"comment_id": "6671402",
"author": "leo60228",
"timestamp": "2023-08-10T02:11:33",
"content": "This seems to ignore that Apple doesn’t do hinting and removed subpixel font smoothing a few years ago?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671517",
... | 1,760,372,206.38214 | ||
https://hackaday.com/2023/08/09/pedal-car-vs-ministry-of-transport/ | Pedal Car Vs Ministry Of Transport | Jonathan Bennett | [
"News",
"Transportation Hacks"
] | [
"e-bike",
"electric assist",
"quadricycle"
] | [Tim] from the “Way Out West” Youtube channels has started a fun project — building a wooden pedal-car heavily inspired by “Bugsy Malone”. The kids-sized gangsters in that movie got around in kid-sized pedal cars. Apparently kid-sized [Tim] just loved the idea, but just didn’t have the skills or tools to try to build o... | 49 | 20 | [
{
"comment_id": "6671368",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2023-08-09T23:12:59",
"content": "” It would be petal powered”Throwback to the 1960s “Flower Power”?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671376",
"a... | 1,760,372,206.314446 | ||
https://hackaday.com/2023/08/09/3d-print-your-own-seiko-style-magic-lever-energy-harvester/ | 3D Print Your Own Seiko-Style “Magic Lever” Energy Harvester | Donald Papp | [
"green hacks"
] | [
"energy harvesting",
"magic lever",
"mechanical energy",
"ratchet",
"Robert Murray-Smith",
"seiko",
"self winding"
] | Back in 1956, Seiko created their “magic lever” as an integral part of self-winding mechanical watches, which were essentially mechanical energy harvesters. The magic lever is a type of ratcheting arrangement that ensures a main gear only ever advances in a single direction. [Robert Murray-Smith] goes into detail in
th... | 20 | 5 | [
{
"comment_id": "6671328",
"author": "Reluctant Cannibal",
"timestamp": "2023-08-09T20:12:37",
"content": "If we now understand how it works, surely it;s no longer magic? Was it indeed ever magic?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671337",
... | 1,760,372,206.435942 | ||
https://hackaday.com/2023/08/09/2023-hackaday-prize-a-reinvented-solar-tracker/ | 2023 Hackaday Prize: A Reinvented Solar Tracker | Matthew Carlson | [
"green hacks",
"Solar Hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"renewable energy",
"solar panel",
"solar tracker"
] | It probably goes without saying that solar panels need to be pointed at the sun for optimal performance. The tricky bit is that the sun has a funny habit of moving on you. For those with a solar panel on their balcony or garden,
mysoltrk tracks the sun to get the most out of a small solar panel
.
[Fulvio] built the tra... | 35 | 17 | [
{
"comment_id": "6671298",
"author": "Ostracus",
"timestamp": "2023-08-09T18:34:32",
"content": "Great for small. Not so much for bigger.https://www.solarreviews.com/blog/are-solar-axis-trackers-worth-the-additional-investment",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,206.574198 | ||
https://hackaday.com/2023/08/09/share-your-projects-leave-breadcrumbs/ | Share Your Projects: Leave Breadcrumbs | Arya Voronova | [
"Hackaday Columns",
"internet hacks",
"Skills",
"Slider"
] | [
"documentation",
"forums",
"research"
] | I’ve talked about a low-effort way to document your projects by taking plenty of pictures, and about ways that your PCBs could be documenting themselves. Today, let’s talk about a quick and easy way that you could help other hackers as you go through your own hacking adventures — leaving breadcrumbs.
In short, breadcru... | 20 | 14 | [
{
"comment_id": "6671288",
"author": "komradebob",
"timestamp": "2023-08-09T17:17:53",
"content": "One of my favourite breadcrumbs is writing directly on my point to point wired prototype boards, long before I commit to actual pcb, I have a board with plenty of small notes. Hint: Fine india ink pen.... | 1,760,372,206.500428 | ||
https://hackaday.com/2023/08/09/ms-dos-meets-the-fediverse/ | MS-DOS Meets The Fediverse | Bryan Cockfield | [
"Retrocomputing",
"Software Hacks"
] | [
"dos",
"Fediverse",
"IBM PC",
"mastodon",
"networking",
"retrocomputing",
"Social Media",
"tcp/ip"
] | By now, most Windows users are set up with decently functional machines running Windows 10 or 11. Of course there are a few legacy machines still lagging behind on Windows 7 or 8 and plenty of computers in industrial settings running ancient proprietary software on Windows XP. But only the most hardcore of IBM PC users... | 30 | 11 | [
{
"comment_id": "6671257",
"author": "zoobab",
"timestamp": "2023-08-09T15:36:07",
"content": "NE2000 compatible cards were all the rage if you wanted to get decent driver support under Linux.Realtek RTL8139 was the winning chipset!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,206.648204 | ||
https://hackaday.com/2023/08/09/humanitys-return-to-the-moon-and-the-prospect-of-south-pole-moon-bases/ | Humanity’s Return To The Moon And The Prospect Of South Pole Moon Bases | Maya Posch | [
"Featured",
"Original Art",
"Slider",
"Space"
] | [
"artemis program",
"moon",
"moon base",
"moon colonization"
] | The last time that a human set foot on the Moon, it was December 1972 — when the crew of the Apollo 17 mission spent a few days on the surface before returning to Earth. Since then only unmanned probes have either touched down on the lunar surface or entered orbit to take snapshots and perform measurements.
But after y... | 31 | 10 | [
{
"comment_id": "6671252",
"author": "Mystick",
"timestamp": "2023-08-09T15:00:26",
"content": "What interesting features will their con-badges have?Will the flight computer be a repurposed TRS-80?What role will the Arduino and Raspi-Pi play in play?What arcane coding will the residents need to know... | 1,760,372,206.773273 | ||
https://hackaday.com/2023/08/09/running-doom-in-a-keycap-takes-careful-work/ | RunningDOOMIn A Keycap Takes Careful Work | Donald Papp | [
"Games",
"Raspberry Pi"
] | [
"doom",
"keycap",
"rp2040",
"rp2040 doom"
] | Shoehorning
DOOM
into different hardware is a classic hacker’s exercise, and [TheKeebProject]
managed to squeeze the 1993 classic into a custom keycap
with the help of a Raspberry Pi RP2040, a custom PCB, and a clear resin enclosure. It even has a speaker for sound!
All processing is done inside the keycap, which is a ... | 4 | 3 | [
{
"comment_id": "6671207",
"author": "Power Ranger",
"timestamp": "2023-08-09T11:52:13",
"content": "“we’d like to remind fans that we’ve also seen DOOM shrink in terms of power consumption, all the way down to 1 mW.”It’s quite funny that there was a long comment thread on that article pointing out ... | 1,760,372,206.697529 | ||
https://hackaday.com/2023/08/09/super-mario-in-sed-sort-of/ | Super MarioIn Sed, Sort Of | Dave Rowntree | [
"Games",
"Software Hacks"
] | [
"graphical",
"nintendo",
"sed",
"super mario world"
] | We
definitely needed to reach for a sed reference guide for this one
, but looking at the animated GIF of the script running, it
is
recognizably
Super Mario Bros.
albeit with minimal gameplay beyond jumping obstacles and avoiding or destroying koopas et al. Creator [Ivan Chebykin] is for certain a master of the dark ar... | 7 | 3 | [
{
"comment_id": "6671178",
"author": "Joshua",
"timestamp": "2023-08-09T08:20:20",
"content": "My, for half a second, my heart almost sank into my boots! 😲Here in Germany, “SED” is known as an acronym for former East Germany’s political party.An unpleasant contemporary, mildly said.https://en.wikip... | 1,760,372,206.816 | ||
https://hackaday.com/2023/08/08/inside-the-pet-keyboard/ | Inside The PET Keyboard | Al Williams | [
"Retrocomputing"
] | [
"pet",
"retrocomputer"
] | These days, you have a certain expectation for computer keys on a keyboard. Of course, there are variations and proponents of different mechanisms and noise levels. However, back in the late part of the 20th century, it was a different world. Computers came with a bewildering and sometimes befuddling array of keyboards... | 10 | 7 | [
{
"comment_id": "6671156",
"author": "Mog",
"timestamp": "2023-08-09T06:16:09",
"content": "“[Norbert] has worked on emulation able to accommodate software that wants to read the hardware directly”You mean just like every other emulator that emulates the Commodore PET has done? If you emulate the 68... | 1,760,372,206.861867 | ||
https://hackaday.com/2023/08/08/the-orb-web-desktop/ | The Orb Web Desktop | Dave Rowntree | [
"Software Hacks"
] | [
"javascript",
"php",
"web desktop",
"webassembly"
] | [Hugo Leisink] is a programmer who contributes to Open Source projects. In their spare time, they have been developing a
web-browser-based operating system called Orb
. It is available for the princely sum of zero cheeseburgers and doesn’t need a high-spec machine to run smoothly. The project is built using PHP and Jav... | 28 | 14 | [
{
"comment_id": "6671130",
"author": "Ostracus",
"timestamp": "2023-08-09T02:31:08",
"content": "Front-end to remote virtualization.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671135",
"author": "Joshua",
"timestamp": "2023-08-09T03:09:4... | 1,760,372,207.189274 | ||
https://hackaday.com/2023/08/08/stm32-oscilloscope-uses-all-the-features/ | STM32 Oscilloscope Uses All The Features | Bryan Cockfield | [
"Tool Hacks"
] | [
"adc",
"analog to digital",
"microcontroller",
"oscilloscope",
"stm32",
"tft screen"
] | [jgpeiro] is no slouch when it comes to building small, affordable oscilloscopes out of common microcontrollers. His most recent, based on an RP2040 with two channels that ran at 100 MSps, put it on the order of plenty of commercially-available oscilloscopes at this sample rate but at a fraction of the price. He wanted... | 29 | 10 | [
{
"comment_id": "6671114",
"author": "ian 42",
"timestamp": "2023-08-09T00:04:16",
"content": "looks good, all it needs is an i2c mode (I use my i2c bus monitor about 10 times more than my oscilloscope..) :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "... | 1,760,372,207.507032 | ||
https://hackaday.com/2023/08/08/no-need-to-buy-a-woodchipper-build-one/ | No Need To Buy A Woodchipper – Build One! | Dave Rowntree | [
"hardware",
"Tool Hacks"
] | [
"C45 steel",
"garden",
"gearmotor",
"metalworking",
"steel",
"wood chipper"
] | Polish YouTuber
WorkshopFromScratch
finally got fed up with tripping over piles of garden detritus and decided to
have a go at building a woodchipper
(Video, embedded below). Since they had a ‘small’ 1.5kW gearmotor just lying idle (as you do) it was an obvious fit for a machine that needs torque rather than supersonic... | 32 | 11 | [
{
"comment_id": "6671072",
"author": "Eternal Damnation",
"timestamp": "2023-08-08T21:02:48",
"content": "All you need to make $300 machine is a $10000 workshop 🤡",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671103",
"author": "Padrote",
... | 1,760,372,207.343622 | ||
https://hackaday.com/2023/08/08/hackaday-prize-2023-machining-metals-with-sparks/ | Hackaday Prize 2023: Machining Metals With Sparks | Bryan Cockfield | [
"The Hackaday Prize",
"Tool Hacks"
] | [
"2023 Hackaday Prize",
"cutting",
"EDM",
"Electrical Discharge Machining",
"electricity",
"machining",
"metalworking",
"plasma",
"spark"
] | Working with metals can present a lot of unique challenges even for those with a fairly well-equipped shop. Metals like aluminum and some types of steel can be cut readily with grinders and saws, but for thick materials or some hardened steels, or when more complex cuts need to be made, mechanical cutting needs to be r... | 3 | 2 | [
{
"comment_id": "6671059",
"author": "Max S.",
"timestamp": "2023-08-08T19:41:55",
"content": "I thought EDM was always done under water, (de-ionized). Here the water is just sprayed on?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671127",
"aut... | 1,760,372,207.873752 | ||
https://hackaday.com/2023/08/08/easyeda2kicad-never-draw-a-footprint-again/ | Easyeda2KiCad: Never Draw A Footprint Again | Arya Voronova | [
"Hackaday Columns",
"Parts",
"PCB Hacks",
"Slider"
] | [
"easyeda",
"footprint creation",
"JLCPCB",
"KiCAD",
"LCSC"
] | What if I told you that you might never need to draw a new footprint again? Such is my friend’s impression of the tool that she’s shown me and I’m about to show you in turn, having used this tool for a few projects, I can’t really disagree!
We all know of the JLCPCB/LCSC/EasyEDA trio, and their integration makes a lot ... | 38 | 9 | [
{
"comment_id": "6671025",
"author": "nidrtho",
"timestamp": "2023-08-08T17:14:44",
"content": "“Never X Y again!” is clickbait since before Internet was even a thing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6671037",
"author": "Arya Voronova"... | 1,760,372,207.272612 | ||
https://hackaday.com/2023/08/08/hacking-fake-food/ | Hacking Fake Food | Al Williams | [
"Art"
] | [
"fake food",
"sculpting",
"shokuhin sampuru",
"wax"
] | Ever seen a restaurant where they display fake models of the food on the menu? We never thought much about how
shokuhin sampuru
— the Japanese name — were made until we watched [Process X]’s video showing a 71-year-old artist
creating food models
. We aren’t sure what we — or you — would do with this information, but i... | 24 | 4 | [
{
"comment_id": "6671021",
"author": "ThantiK",
"timestamp": "2023-08-08T17:01:33",
"content": "I remember in the 00s when this was a huge “FW:FW:FW:FW:FW:Grandma says the food we are eating is fake!” – so I learned about this back then, but this is some nostalgia to bring to the table today.",
... | 1,760,372,207.632068 | ||
https://hackaday.com/2023/08/08/under-the-sea-optical-repeaters-for-submarine-cables/ | Under The Sea: Optical Repeaters For Submarine Cables | Dan Maloney | [
"Engineering",
"Featured",
"Original Art",
"Slider"
] | [
"fiberoptics",
"repeater",
"transatlantic cable",
"transoceanic",
"undersea"
] | Once a month or so, I have the privilege of sitting down with Editor-in-Chief Elliot Williams to record the
Hackaday Podcast
. It’s a lot of fun spending a couple of hours geeking out together, and we invariably go off on ridiculous tangents with no chance of making the final cut, except perhaps as fodder for the intro... | 25 | 9 | [
{
"comment_id": "6670999",
"author": "aquahoodch",
"timestamp": "2023-08-08T15:34:09",
"content": "I always like to point out to add 1 to every measurement of undersea pressure when referring for total ata or atomspheres. I see this always on watches and the say it’s a 10 ata or 100 meters, but the ... | 1,760,372,207.57334 | ||
https://hackaday.com/2023/08/08/different-etching-strokes-for-different-pcbs-folks/ | Different Etching Strokes For Different PCBs, Folks | Dan Maloney | [
"chemistry hacks",
"PCB Hacks"
] | [
"Chemistry",
"etchant",
"etching",
"ferric chloride",
"Hydrochloric acid",
"pcb",
"peroxide",
"sodium persulfate"
] | [Sebastian] probably didn’t think he was wading into controversial waters when he posted on
his experimental method for etching PCBs
(
in German
). It’s not like etching with hydrochloric acid and peroxide is anything new, really; it was just something new to him. But is it even possible these days to post something an... | 44 | 15 | [
{
"comment_id": "6670931",
"author": "Olaf",
"timestamp": "2023-08-08T11:29:17",
"content": "The important word here is “German”, because we live more and more in a nannystate.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6670935",
"author": "Sebas... | 1,760,372,207.717944 | ||
https://hackaday.com/2023/08/08/reviving-an-8-inch-hard-drive-from-the-1980s/ | Reviving An 8-Inch Hard Drive From The 1980s | Maya Posch | [
"Retrocomputing"
] | [
"1980's",
"hard drive"
] | As part of the eternal quest within the realm of retrocomputing, storage devices can be one of the most challenging, especially when it comes to firmly obsolete hard drives, such as the CDC Finch drive. This compact 8″ HDD replaced the previous 14″ models with a form factor that was decidedly more portable. These Finch... | 17 | 12 | [
{
"comment_id": "6670917",
"author": "Ale",
"timestamp": "2023-08-08T09:45:34",
"content": "I really like his restoration of the Centurion and all the information he gives. I hope he advances with the other, drum memory machines, too, exciting technology. I am amazed at how robust they were.",
"... | 1,760,372,207.778756 | ||
https://hackaday.com/2023/08/07/enhance-your-enclosures-with-a-shadow-line/ | Enhance Your Enclosures With A Shadow Line | Donald Papp | [
"3d Printer hacks"
] | [
"3d printing",
"cad",
"design tips",
"enclosures",
"injection molding",
"shadow lines"
] | Some design techniques and concepts from the injection molding world apply very nicely to 3D printing, despite them being fundamentally different processes. [Teaching Tech] demonstrates
designing shadow lines into 3D printed parts
whose surfaces are intended to mate up to one another.
This is a feature mainly seen in e... | 15 | 8 | [
{
"comment_id": "6670885",
"author": "Andrew",
"timestamp": "2023-08-08T07:40:35",
"content": "I thought that line was for a screwdriver for me to pop the two halves apart. Learn something new every day!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6670924... | 1,760,372,207.831579 | ||
https://hackaday.com/2023/08/07/linux-containers-the-hard-way/ | Linux Containers The Hard Way | Al Williams | [
"Linux Hacks"
] | [
"containers",
"linux"
] | If you want to make containers under Linux, plenty of high-level options exist. [Lucavallin] wanted to learn more about how containers really work, so he decided to
tackle the problem using the low-level kernel functions
, and he shared the code with us on GitHub.
Containers are more isolated than processes but not qui... | 10 | 5 | [
{
"comment_id": "6670875",
"author": "steelman",
"timestamp": "2023-08-08T05:40:59",
"content": "These capabilities are available in the kernel started with version 6.0.x,Which capabilities exactly? Because AFAIK most of them (namespaces, seccomp, capabilities, cgroups) have existed for quite some t... | 1,760,372,207.917421 | ||
https://hackaday.com/2023/08/07/when-the-sojourner-mars-rover-nearly-ran-lisp/ | When TheSojournerMars Rover Nearly Ran LISP | Maya Posch | [
"Robots Hacks",
"Space"
] | [
"lisp",
"mars rover"
] | During the late 1980s NASA’s Jet Propulsion Laboratory (JPL) was busy developing the first ever wheeled robot that would roam the surface of Mars. Due to the long round-trip times of any signals between Mars and Earth, development of the firmware that would control the rover was a major point, with the two teams occupi... | 12 | 6 | [
{
"comment_id": "6670831",
"author": "Matt Cramer",
"timestamp": "2023-08-08T00:03:34",
"content": "Launching interplanetary space parentheses!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8056966",
"author": "ArsenieBoca multumesc tie",
"t... | 1,760,372,208.097405 | ||
https://hackaday.com/2023/08/07/the-egyptian-coin-box-trick/ | The Egyptian Coin Box ‘Trick’ | Dave Rowntree | [
"hardware",
"Toy Hacks"
] | [
"bluetooth",
"capacitive sensing",
"cnc routing",
"esp32-C3",
"magic"
] | [James Stanley] likes to spend time making puzzles and gadgets for escape rooms, and decided for a change to try their hand at a bit of magic. The idea was to
construct a ‘magic box’, in which a coin can be placed in one of a number of slots
, and then be able to remotely be able to determine the slot by means unseen. ... | 9 | 5 | [
{
"comment_id": "6670804",
"author": "irox",
"timestamp": "2023-08-07T21:21:03",
"content": "“a lay audience just needs to think “the box is rigged” to think they’ve figured out how it works”I feel this is solved by showmanship and misdirection rather than technology. The “magician” needs to convin... | 1,760,372,208.047956 | ||
https://hackaday.com/2023/08/07/perfecting-the-pulse-oximeter/ | Perfecting The Pulse Oximeter | Orlando Hoilett | [
"Medical Hacks",
"Wearable Hacks"
] | [
"Analog devices",
"biohack",
"MAX30001",
"Maxim Integrated",
"photoplethysmography",
"pulse oximeter",
"texas instruments"
] | We’re always looking for interesting biohacks here on Hackaday, and this new research article describing a
calibrated pulse oximeter for different skin tones
really caught our attention.
Pulse oximeters are handy little instruments that measure your blood oxygen saturation using photoplethysmography (PPG)
and are a top... | 28 | 8 | [
{
"comment_id": "6670764",
"author": "Hirudinea",
"timestamp": "2023-08-07T19:10:46",
"content": "Melanin is supposed to absorb UV radiation so could a UV light, camera be used to sense the amount of melanin in the skin and use an algorithm to compensate?",
"parent_id": null,
"depth": 1,
... | 1,760,372,208.162523 | ||
https://hackaday.com/2023/08/07/all-about-usb-c-example-circuits/ | All About USB-C: Example Circuits | Arya Voronova | [
"Hackaday Columns",
"how-to",
"Interest",
"Skills",
"Slider"
] | [
"Type-C",
"USB C",
"USB Type-C",
"USB-C PD"
] | In the six months that have passed after the last USB-C article has been released, I have thought up a bunch of ways that these articles could have been improved. It’s, of course, normal to have such a feeling — expected, even. I now believe that there’s a few gaps that I could bridge. For instance, I have not provided... | 8 | 7 | [
{
"comment_id": "6670732",
"author": "Chris",
"timestamp": "2023-08-07T17:16:37",
"content": "Another great article, and great reference material!I just tested my USB-C edge connector to program an RP2040, and it actually works really well! Now all my projects going forward will a reversible connect... | 1,760,372,208.423139 | ||
https://hackaday.com/2023/08/07/what-can-we-do-with-these-patient-monitor-videos/ | What Can We Do With These Patient Monitor Videos? | Tom Nardi | [
"Video Hacks"
] | [
"medical",
"prop",
"simulation"
] | So we’ll admit from the start that we’re not entirely sure how the average Hackaday reader can put this content to use. Still, these
simulated patient monitor videos on YouTube
gotta be useful for
something
. Right?
Uploaded by [themonitorsolution], each fourteen-minute 1080p video depicts what a patient monitor would ... | 22 | 13 | [
{
"comment_id": "6670696",
"author": "slacker24l7",
"timestamp": "2023-08-07T15:35:49",
"content": "raw data is better, but you could use it to train a neural network to identify patients condition.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6670698",
... | 1,760,372,208.265647 | ||
https://hackaday.com/2023/08/06/hackaday-prize-2023-loshark-the-radio-debugger-for-lora/ | Hackaday Prize 2023: LoShark, The Radio Debugger For LoRa | Jonathan Bennett | [
"Radio Hacks",
"The Hackaday Prize"
] | [
"2023 Hackaday Prize",
"LoRa"
] | LoRa, the Long Range wireless protocol is pretty great for trickling data across long distances. There are some great embedded devices based around STM32, NRF52, and ESP32 microcontrollers. What’s been missing for quite a while is a device that allows for full access to a LoRa radio from a more capable CPU. The wait ma... | 24 | 5 | [
{
"comment_id": "6670354",
"author": "Jouni",
"timestamp": "2023-08-06T17:49:20",
"content": "So they stuffed Linux in front of Semtechs Lora modem (SX12XX-series) so that people can run javascript?I mean what is wrong with elcheapo ESP32 + SX12XX chip boards? You can basically do the same “debuggin... | 1,760,372,208.481962 |
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