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https://hackaday.com/2022/04/11/2022-hackaday-prize-hack-chat/ | 2022 Hackaday Prize Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"Hack Chat"
] | Join us on Wednesday, April 13 at noon Pacific for the
2022 Hackaday Prize Hack Chat
with
Majenta Strongheart
!
Let’s face it: this world is pretty broken right now. From environmental crisis to disease and famine, shortages of just about everything, infrastructure failures, not to mention wars and social breakdown, th... | 23 | 6 | [
{
"comment_id": "6455569",
"author": "PWalsh",
"timestamp": "2022-04-11T16:35:14",
"content": "I was considering funding a HAD contest about solving wealth inequality. (I have money set aside for the prize.)Basically, a completely fair trade simulation will show that wealth inequality will eventuall... | 1,760,372,732.826818 | ||
https://hackaday.com/2022/04/11/need-a-jtag-adapter-use-your-pico/ | Need A JTAG Adapter? Use Your Pico! | Arya Voronova | [
"Raspberry Pi",
"Tool Hacks"
] | [
"debug",
"jtag",
"jtag tools",
"pi pico",
"pico",
"Raspberry Pi Pico",
"rp2040"
] | JTAG is a powerful interface for low-level debugging and introspection of all kinds of devices — CPUs, FPGAs, MCUs and a whole lot of complex purpose-built chips like RF front-ends. JTAG adapters can be quite obscure, or cost a pretty penny, which is why we’re glad to see that [Adam Taylor] from [ADIUVO]
made a tutoria... | 9 | 4 | [
{
"comment_id": "6455560",
"author": "Daniel",
"timestamp": "2022-04-11T16:03:59",
"content": "You ought to add buffers/level shifters also to prevent damage to your 3.3V target when its power supply is turned off before you disconnect the Pico from USB.",
"parent_id": null,
"depth": 1,
... | 1,760,372,732.182461 | ||
https://hackaday.com/2022/04/11/mothballing-rosalind-how-to-put-a-space-mission-in-storage/ | Mothballing Rosalind: How To Put A Space Mission In Storage | Dan Maloney | [
"Current Events",
"Featured",
"Interest",
"Original Art",
"Slider",
"Space"
] | [
"ESA",
"mars",
"rosalind franklin"
] | In planetary exploration circles, Mars has quite a bad reputation. The Red Planet has a habit of eating spacecraft sent there to explore it, to the degree that nearly half of the missions we’ve thrown at it have failed in one way or another. The “Mars Curse” manifests itself most spectacularly when landers fail to nego... | 13 | 6 | [
{
"comment_id": "6455551",
"author": "Piotrsko",
"timestamp": "2022-04-11T15:26:32",
"content": "Pretty sure the igniters aren’t stored onboard, there’s fake actuators. You don’t want one going off in your lab, ever. Kinda fubars your cleanroom.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,372,732.551318 | ||
https://hackaday.com/2022/04/11/this-end-table-conceals-a-close-encounter/ | This End Table Conceals A Close Encounter | Jenny List | [
"Toy Hacks"
] | [
"furniture",
"model railroad",
"model railway"
] | If you’re of a Certain Age, perhaps you had a train set as a child. An oval of track, a loco, and some rolling stock; it matters not whether it was
Thomas the Tank Engine
or a large express train — they were at the time a pretty cool toy. Move forward a few decades, and model railways have become either super-expensive... | 18 | 7 | [
{
"comment_id": "6455506",
"author": "Paul",
"timestamp": "2022-04-11T12:39:44",
"content": "A lot of sheets of plywood and wasted wood, making circles like that. Surely making it a few arcs could reduce it to a single sheet.But I suppose if you put that much time and other expense into the project... | 1,760,372,732.44288 | ||
https://hackaday.com/2022/04/11/swing-gate-motors-come-to-help-for-opening-a-giant-servery-window/ | Swing Gate Motors Come To Help For Opening A Giant Servery Window | Arya Voronova | [
"hardware",
"Misc Hacks"
] | [
"linear actuator",
"linear actuators",
"repurposing",
"swing gate"
] | [Martin Roberts] wrote to us, telling us
about a build
that his company, [Ocean View Workshop], was tasked with. Creating a four meter wide window able to open vertically is no small feat, and it had to be custom-built because the local company building such windows wasn’t comfortable working with anything other than a... | 34 | 11 | [
{
"comment_id": "6455470",
"author": "anon",
"timestamp": "2022-04-11T08:36:41",
"content": "While it’s nice to see people wearing helmets, the words “engineering”, “safety” and “code” (standard) are not mentioned in the article – what’s to keep peoples head getting bashed in?",
"parent_id": nul... | 1,760,372,732.268249 | ||
https://hackaday.com/2022/04/09/twitch-and-blink-your-way-through-typing-with-this-facial-keyboard/ | Twitch And Blink Your Way Through Typing With This Facial Keyboard | Dan Maloney | [
"Software Development",
"Video Hacks"
] | [
"dlib",
"Face Mesh",
"facial recognition",
"gesture",
"keyboard",
"morse",
"opencv",
"python"
] | For those that haven’t experienced it, the early days of parenthood are challenging, to say the least. Trying to get anything accomplished with a raging case of sleep deprivation is hard enough, but the little bundle of joy who always seems to need to be in physical contact with you makes doing things with your hands n... | 17 | 7 | [
{
"comment_id": "6454994",
"author": "JanW",
"timestamp": "2022-04-09T11:03:30",
"content": "Looks like a good facial workout!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6455019",
"author": "Ostracus",
"timestamp": "2022-04-09T13:51:01",
... | 1,760,372,732.883107 | ||
https://hackaday.com/2022/04/09/night-vision-now-in-color/ | Night Vision: Now In Color | Al Williams | [
"News",
"Science"
] | [
"infrared",
"night vision",
"nightvision"
] | We’ve all gotten used to seeing movies depict people using night vision gear where everything appears as a shade of green. In reality the infrared image is monochrome, but since the human eye is very sensitive to green, the false-color is used to help the wearer distinguish the faintest glow possible. Now researchers f... | 36 | 8 | [
{
"comment_id": "6454961",
"author": "RÖB",
"timestamp": "2022-04-09T09:10:12",
"content": "No offence [Al Williams], I love your articles.But…I get a big belly laugh when people with normal colour perception talk (or write) about colour.I’m colour blind and I’ll bet someone will have a dig at me fo... | 1,760,372,732.39369 | ||
https://hackaday.com/2022/04/08/enjoy-this-animatronic-eyeballs-smooth-moves/ | Enjoy This Animatronic Eyeball’s Smooth Moves | Donald Papp | [
"Robots Hacks"
] | [
"animatronic",
"eyeball",
"eyes",
"I just think they're neat",
"nunchuk",
"robotic",
"wii nunchuk"
] | [Enza3D] shows off a
surprisingly compact articulated animatronic eyeball
that can be intuitively controlled with a Wii nunchuk controller. The design uses 3D printed parts and some tiny servos, and all of the necessary electronics can be easily purchased online. The mechanical design of the eye is very impressive, and... | 10 | 7 | [
{
"comment_id": "6454951",
"author": "Fosselius",
"timestamp": "2022-04-09T07:05:22",
"content": "Really cool design :) Getting LOTR vibes :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454969",
"author": "John",
"timestamp": "2022-04-09T... | 1,760,372,732.319802 | ||
https://hackaday.com/2022/04/08/just-in-case-you-want-to-charge-your-neighbors-tesla/ | Just In Case You Want To Charge Your Neighbor’s Tesla | Al Williams | [
"Security Hacks"
] | [
"car hacks",
"car security",
"sdr",
"tesla"
] | Tesla vehicles have a charging port that is under a cover that only opens on command from a charging station. Well, maybe not only. [IfNotPike] reports that he was able to
replay the 315MHz signal
using a software defined radio and pop the port open on any Tesla he happened to be near.
Apparently, opening the charging ... | 67 | 18 | [
{
"comment_id": "6454910",
"author": "Ken",
"timestamp": "2022-04-09T02:18:44",
"content": "So what?I can open the ‘charger port’ on almost any ICE car on the road (you may know it as the gas cap), and I’m not aware of any wide-spread shenanigans.Why couldn’t it be enough to say that Teslas open the... | 1,760,372,732.646673 | ||
https://hackaday.com/2022/04/08/a-bargain-in-bionic-knees/ | A Bargain In Bionic Knees | Al Williams | [
"Arduino Hacks",
"Medical Hacks"
] | [
"microprocessor knee",
"prosthetics"
] | You probably don’t want to lose a leg, but if you have to there are many options now that were unthinkable not long ago. That is, if you can afford them. A microprocessor knee — a prosthetic with some smarts in it — can run anywhere from $25,000 to well over $100,000. However [Lucas Galey], a PhD candidate at the Unive... | 17 | 6 | [
{
"comment_id": "6454946",
"author": "rasz_pl",
"timestamp": "2022-04-09T06:15:49",
"content": ">You can’t get a LIMBS passive knee in the United States, as it doesn’t meet federal standards for healthcare technologyDo you need that to sell prosthetics in US? or only to get on a list of products cov... | 1,760,372,732.49388 | ||
https://hackaday.com/2022/04/08/wordle-comes-to-the-nokia-n-gage-thanks-to-new-sdk/ | WordleComes To The Nokia N-Gage Thanks To New SDK | Tom Nardi | [
"Games",
"Software Development"
] | [
"N-Gage",
"nokia",
"sdk",
"Wordle"
] | You probably never imagined you’d be reading about new software getting developed for Nokia’s infamous N-Gage handheld game system in 2022, and we certainly never thought we’d be writing about it. But here we are. Of course, we aren’t talking about a commercial title — this is
an unofficial port of
Wordle
by “taco phon... | 3 | 2 | [
{
"comment_id": "6454861",
"author": "Alphatek",
"timestamp": "2022-04-08T20:18:58",
"content": "Interesting, and apropos nothing, reminded me I have a Nokia N770 in a cupboard somewhere!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454929",
"auth... | 1,760,372,732.926296 | ||
https://hackaday.com/2022/04/08/a-close-look-at-a-little-known-8-bit-computer/ | A Close Look At A Little Known 8-bit Computer | Al Williams | [
"Retrocomputing",
"Teardown"
] | [
"6800",
"retrocomputing",
"SWTP"
] | If you read about the history of personal computing, you hear a few familiar names like Microsoft, Apple, and even Commodore. But there were a host of companies that were well known and well regarded back then that are all but forgotten today. Godbout computing, Ohio Scientific, and Southwest Technical Products (SWTP).... | 47 | 19 | [
{
"comment_id": "6454840",
"author": "Tom Brusehaver",
"timestamp": "2022-04-08T18:56:09",
"content": "In high school my friends Scott and Steve went together and bought one.I struggled with an 1802 based system",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,372,733.177647 | ||
https://hackaday.com/2022/04/10/retrotechtacular-a-diy-television-for-very-early-adopters/ | Retrotechtacular: A DIY Television ForVeryEarly Adopters | Dan Maloney | [
"Retrotechtacular"
] | [
"1930s",
"cathode ray tube",
"crt",
"retrotechtacular",
"television",
"tv"
] | By our very nature, hackers tend to get on the bandwagon of new technology pretty quickly. When something gee-whiz comes along, it’s folks like us who try it out, even if that means climbing steep learning curves or putting together odd bits of technology rather than waiting for the slicker products that will come out ... | 21 | 11 | [
{
"comment_id": "6455227",
"author": "BT",
"timestamp": "2022-04-10T09:11:17",
"content": "Burried in one of the pages it says the BBC did 4 half-hour test broadcasts a week, so they had to do all their testing and adjustments in that time. So I guess that’s what they watched!",
"parent_id": nul... | 1,760,372,733.088284 | ||
https://hackaday.com/2022/04/09/lora-powered-birdhouses-enable-wireless-networking-when-the-internets-down/ | LoRa-Powered Birdhouses Enable Wireless Networking When The Internet’s Down | Robin Kearey | [
"Wireless Hacks"
] | [
"ham radio",
"LoRa",
"mesh network",
"packet radio"
] | One of the design requirements for the networks that evolved into the Internet was the ability to keep functioning, even if some nodes or links were disabled or destroyed in war. The packet-switched architecture that still powers today’s Internet is a direct result of that: if one link stops functioning, information is... | 26 | 13 | [
{
"comment_id": "6455203",
"author": "Dan",
"timestamp": "2022-04-10T05:30:40",
"content": "That’s much nicer than the fake trees they use to “hide” cellphone masts! Shame they didn’t include a camera on the inside of the box though, seems like a missed opportunity!",
"parent_id": null,
"dep... | 1,760,372,733.248467 | ||
https://hackaday.com/2022/04/09/sdr-listens-in-to-your-tires/ | SDR Listens In To Your Tires | Al Williams | [
"car hacks",
"Wireless Hacks"
] | [
"RTL-SDR",
"tacoma",
"tpms"
] | [Ross] has a 2008 Toyota Tacoma. Like many late model cars, each tire contains a direct tire pressure monitoring sensor or TPMS that wirelessly sends data about the tire status to the car. However, unlike some cars, the system has exactly one notification to the driver: one of your tires is low. It doesn’t tell you whi... | 26 | 12 | [
{
"comment_id": "6455193",
"author": "RW ver 0.0.1",
"timestamp": "2022-04-10T04:20:23",
"content": "Nice, I don’t suppose anyone has come across info on programming the damn things? I have an early TPMS system, where all the spares are gonna have dead batteries anyway, and be a damn nuisance… then ... | 1,760,372,733.422557 | ||
https://hackaday.com/2022/04/09/cat-is-not-your-average-meow-cropad/ | CAT Is Not Your Average Meow-cropad | Kristina Panos | [
"Arduino Hacks",
"Peripherals Hacks"
] | [
"arduino",
"arduino pro micro",
"macro keyboard",
"macro pad"
] | Are you completely over the idea of the keyboard in any flattish form and looking for something completely different for inputting your data? Or do you want a mega macropad for 3D design, GIMP or Inkscape work, or to use while relaxing with a nice first-person shooter? Then
this ergonomic, double-fistable keyboard/cont... | 3 | 2 | [
{
"comment_id": "6455220",
"author": "Foldi-One",
"timestamp": "2022-04-10T07:53:13",
"content": "interesting, wonder how comfortable it is ergonomically for different hand sizes.I was thinking of something in a very similar form factor but mirror paired to go into the arm rests of the Sim/ normal c... | 1,760,372,733.033101 | ||
https://hackaday.com/2022/04/09/amazing-connect-fore-robot-challenges-your-putting-practice/ | Amazing “Connect Fore!” Robot Challenges Your Putting Practice | Donald Papp | [
"Artificial Intelligence",
"Games",
"Robots Hacks"
] | [
"ai",
"automated",
"automated opponent",
"connect four",
"games",
"golf",
"robotic",
"scottish"
] | We’ve just come across [Bithead]’s amazing, robotically-automated mashup of miniature golf and
Connect Four
, which also includes an AI opponent who pulls no punches in its drive to win.
Connect Fore!
celebrates Scotland — the birthplace of golf, after all — and looks absolutely fantastic.
Scotty the AI opponent uses t... | 1 | 1 | [
{
"comment_id": "6455163",
"author": "Mike",
"timestamp": "2022-04-10T00:43:35",
"content": "Great build! I like how it trash talks you during the game, gives a sense of an actual opponent.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,733.359035 | ||
https://hackaday.com/2022/04/09/best-ways-to-make-pcb-breakaway-tabs-revealed/ | Best Ways To Make PCB Breakaway Tabs, Revealed | Donald Papp | [
"how-to",
"Science"
] | [
"breakaway",
"breakaway tab",
"empirical",
"mouse bites",
"pcb",
"perforation line",
"v-groove"
] | Most of us are familiar with the concept of producing PCBs in a panel, and snapping them apart afterwards. V-grooves that go
most
of the way through a PCB are one way to go about this, but a line of perforations along which to snap a tab is another. But what’s the best size and spacing of holes to use? Sparkfun’s [Nick... | 20 | 9 | [
{
"comment_id": "6455086",
"author": "monsonite",
"timestamp": "2022-04-09T17:30:14",
"content": "About 20 years ago, I worked for a company that made a high volume telephone dialler product.After about the first 100,000 were produced, we found that we were getting some unusual failures.After some a... | 1,760,372,733.31273 | ||
https://hackaday.com/2022/04/09/the-virtue-of-wires-in-the-age-of-wireless/ | The Virtue Of Wires In The Age Of Wireless | Elliot Williams | [
"Hackaday Columns",
"Rants",
"Slider"
] | [
"home automation",
"i2c",
"microcontrollers",
"networking",
"rants",
"rs485",
"sensors",
"uart",
"usart"
] | We ran an
article this week about RS-485
, a noise resistant differential serial multidrop bus architecture. (Tell me where else you’re going to read articles like that!) I’ve had my fun with RS-485 in the past, and reading this piece reminded me of those days.
You see, RS-485 lets you connect a whole slew of devices u... | 47 | 21 | [
{
"comment_id": "6455041",
"author": "Alysson+Rowan",
"timestamp": "2022-04-09T14:46:33",
"content": "Living in a 400 year old house, wireless has an incredibly limited and patchy coverage – that includes network, bluetooth and mobile telephony – which makes most of the commercial products such as w... | 1,760,372,733.555282 | ||
https://hackaday.com/2022/04/08/pcb-thermal-design-hack-gets-hot-and-heavy/ | PCB Thermal Design Hack Gets Hot And Heavy | Tom Nardi | [
"Hackaday Columns"
] | [
"cooling",
"Hack Chat",
"PCB design",
"thermal conductivity",
"traces"
] | Thanks to the relatively recent rise of affordable board production services, many of the people reading Hackaday are just now learning the ropes of PCB design. For those still producing the FR4 equivalent of “Hello World”, it’s accomplishment enough that all the traces go where they’re supposed to. But eventually your... | 1 | 1 | [
{
"comment_id": "6455175",
"author": "Sally",
"timestamp": "2022-04-10T01:57:31",
"content": "So the physics of the 1950s still hold true, but if you use lots of layers with large copper pours in between, the inner layers might not be more insulated. OK",
"parent_id": null,
"depth": 1,
... | 1,760,372,733.470975 | ||
https://hackaday.com/2022/04/08/hackaday-podcast-163-movie-sound-defeating-dymo-drm-3dp-guitar-neck-biometrics-bereft-of-big-brother/ | Hackaday Podcast 163: Movie Sound, Defeating Dymo DRM, 3DP Guitar Neck, Biometrics Bereft Of Big Brother | Kristina Panos | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Join Hackaday Editor-in-Chief Elliot Williams and Assignments Editor Kristina Panos as we spend an hour or so dissecting some of the more righteous hacks and projects from the previous week. We’ll discuss a DIY TPM module that satisfies Windows 11, argue whether modern guts belong in retrocomputer builds even if it mak... | 7 | 3 | [
{
"comment_id": "6454838",
"author": "William Jackson",
"timestamp": "2022-04-08T18:37:54",
"content": "The Dymo people now count the number of labels used and once the roll is done. The old chip can not be used to reuse another generic roll of same sized labels. More work needed…",
"parent_id":... | 1,760,372,733.605084 | ||
https://hackaday.com/2022/04/08/its-almost-a-new-raspberry-pi-compute-module-4-but-not-quite/ | It’s Almost A New Raspberry Pi Compute Module 4. But Not Quite | Jenny List | [
"Raspberry Pi"
] | [
"cm4",
"raspberry pi",
"Raspberry Pi Compute Module"
] | We know that readers are familiar with the global chip shortage and its effects on product availability. The Raspberry Pi folks haven’t escaped its shadow, for even though they’ve managed to preserve availability of their RP2040 microcontroller, it’s fair to say that some of their flagship Linux-capable boards have bee... | 21 | 6 | [
{
"comment_id": "6454782",
"author": "Pat",
"timestamp": "2022-04-08T15:11:27",
"content": "One day, a Raspberry Pi will come along with a full industrial temp range…OK, probably not.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454787",
"author":... | 1,760,372,733.698031 | ||
https://hackaday.com/2022/04/08/this-week-in-security-vulnerable-boxes-government-responses-and-new-tools/ | This Week In Security: Vulnerable Boxes, Government Responses, And New Tools | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"botnet",
"hydra",
"This Week in Security"
] | The Cyclops Blink botnet
is thought to be the work of an Advanced Persistent Threat (APT) from Russia, and seems to be limited to Watchguard and Asus devices. The normal three and four letter agencies publicized their findings back in February, and urged everyone with potentially vulnerable devices to go through the st... | 1 | 1 | [
{
"comment_id": "6454960",
"author": "tomás zerolo",
"timestamp": "2022-04-09T09:02:47",
"content": "On salt, wounds and the Office of Property Recovery:“… trash the bogus paperwork …”No, they won’t. They are going to sell the gathered data elsewhere, surely they’re a cent or two worth. I mean: a va... | 1,760,372,733.643641 | ||
https://hackaday.com/2022/04/08/astrophotography-on-the-game-boy-camera/ | Astrophotography On The Game Boy Camera | Bryan Cockfield | [
"Nintendo Game Boy Hacks"
] | [
"3d printed",
"astrophotography",
"camera",
"game boy",
"lens",
"macro",
"moon"
] | The Game Boy Camera was the first digital camera that many of us ever interacted with. At the time it was fairly groundbreaking to take pictures without film, even though the resolution was extremely low by modern standards, and it could only shoot two-bit color. It’s been long enough since its release that it’s starti... | 4 | 4 | [
{
"comment_id": "6454744",
"author": "Frankel",
"timestamp": "2022-04-08T11:20:43",
"content": "Floyd–Steinberg dithering is timeless, those photos are amazing! This muddy-green display and the amber terminals on old CRTs are my favourite about the computing of olden.",
"parent_id": null,
"d... | 1,760,372,733.766406 | ||
https://hackaday.com/2022/04/08/shredder-rebuilt-from-the-ashes-aims-to-produce-more-ashes/ | Shredder Rebuilt From The Ashes, Aims To Produce More Ashes | Arya Voronova | [
"Tool Hacks"
] | [
"cardboard",
"gearbox",
"rebuild",
"shredder",
"shredder feeding",
"wood briquette"
] | What do you do when you buy a broken shredder and, upon disassembly, find its gears in pieces? You might reach towards your 3D printer – this one’s not
that
kind of shredder, however. [New Yorkshire Workshop]
gives us a master class on reviving equipment
and putting it to good use – this one’s assigned to help turn the... | 16 | 6 | [
{
"comment_id": "6454730",
"author": "Dan",
"timestamp": "2022-04-08T09:38:05",
"content": "That’s a decent shredder!Though if the aim was to shred cardboard into small pieces, you could have got a puppy instead :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id... | 1,760,372,733.933014 | ||
https://hackaday.com/2022/04/07/raspberry-pi-test-stand-tells-you-which-glues-to-use/ | Raspberry Pi Test Stand Tells You Which Glues To Use | Dan Maloney | [
"Misc Hacks"
] | [
"adhesive",
"glue",
"load cell",
"materials testing",
"raspberry pi",
"stepper",
"strain gauge",
"strength"
] | Not all glues are created equal; or rather, not every glue is good for every application. But how is one to know which glue to use in which kinds of joints? The answer to that is not always clear, but
solid numbers on the comparative strength of different glues
are a great place to start.
To quantify what can ordinaril... | 6 | 3 | [
{
"comment_id": "6454705",
"author": "echodelta",
"timestamp": "2022-04-08T06:17:02",
"content": "What about Titebond 2? Any liquid 8 hour epoxy? These are the 2 I use most. Then there is good ole’ hot hide glue which won’t win for a good reason, but I it use also.",
"parent_id": null,
"dept... | 1,760,372,733.976447 | ||
https://hackaday.com/2022/04/07/stress-testing-an-arduinos-eeprom/ | Stress-Testing An Arduino’s EEPROM | Bryan Cockfield | [
"Arduino Hacks"
] | [
"arduino",
"Cycles",
"eeprom",
"memory",
"storage",
"testing",
"writes"
] | Every time one of us flashes an Arduino’s internal memory, a nagging thought in the backs of our minds reminds us that, although everything in life is impermanent, nonvolatile re-writable memory is even more temporary. With a fixed number of writes until any EEPROM module fails, are we wasting writes every time we uplo... | 29 | 12 | [
{
"comment_id": "6454671",
"author": "PreferLinux",
"timestamp": "2022-04-08T02:37:45",
"content": "That’s not surprising. The first page of the datasheet lists 10,000 cycles for the flash (i.e. where the program is stored) and 100,000 for the EEPROM (what was tested here).However, that is with a da... | 1,760,372,734.076231 | ||
https://hackaday.com/2022/04/07/upcycled-nixie-clock-fit-for-a-friend/ | Upcycled Nixie Clock Fit For A Friend | Chris Wilkinson | [
"clock hacks"
] | [
"arduino",
"IN-4",
"nixie",
"nixie clock",
"nixie tube"
] | Building a clock from parts is a rite of passage for makers, and often represents a sensible introduction into the world of electronics. It’s also hard to beat the warm glow of Nixie tubes in a desktop clock, as [Joshua Coleman] discovered when
building a Nixie tube clock for a friend
.
The original decision to upcycle... | 0 | 0 | [] | 1,760,372,734.010409 | ||
https://hackaday.com/2022/04/07/wireless-weather-station-gets-solar-powered-supercap-upgrade/ | Wireless Weather Station Gets Solar-Powered Supercap Upgrade | Robin Kearey | [
"home hacks"
] | [
"moteino",
"supercapacitors",
"weather station"
] | When [knight-of-ni] bought an Acurite Atlas weather station to replace his earlier 5-in-1 model, he was initally happy with its performance. However, after just ten months the batteries in the outdoor unit died; since the previous model would happily run for several years on one charge, this was a bit of a bummer. Clim... | 18 | 9 | [
{
"comment_id": "6454621",
"author": "Dude",
"timestamp": "2022-04-07T20:59:14",
"content": "The voltage of a solar panel stays up pretty well despite being cloudy as long as the panel is pointed towards the brightest area of the sky.A “6 Volt” panel is actually more than six volts – that’s usually ... | 1,760,372,734.215424 | ||
https://hackaday.com/2022/04/07/openmower-open-source-robotic-lawn-mower-with-rtk-gps/ | OpenMower: Open Source Robotic Lawn Mower With RTK GPS | Dave Rowntree | [
"Robots Hacks"
] | [
"autonomous mower",
"BLDC",
"gps",
"KiCAD",
"Raspberry Pi 4",
"Raspberry Pi Pico",
"RTK"
] | Robotic mowers are becoming a common sight in some places, enabled by the cost of motors and the needed control electronics being much lower, thanks to the pace of modern engineering. But, in many cases, they still appear to be really rather dumb, little more than a jacked up bump-and-go with a spinning blade. [Clemens... | 44 | 15 | [
{
"comment_id": "6454610",
"author": "Erin",
"timestamp": "2022-04-07T19:24:39",
"content": "living in Houston, I’m excited for this. Not sure if it’d eat through my crap as-is but maybe if I did a regular mow before it gets really hot it could keep the HOA off me for the 35C+ times of year.",
... | 1,760,372,734.158128 | ||
https://hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up/ | Remoticon 2021 // Rob Weinstein Builds An HP-35 From The Patent Up | Chris Lott | [
"cons",
"Featured",
"Retrocomputing",
"Reverse Engineering",
"Slider"
] | [
"2021 Hackaday Remoticon",
"calculator",
"fpga",
"hewlett packard",
"hp-35",
"retro calculator",
"reverse engineer",
"verilog"
] | Fifty years ago, Hewlett-Packard introduced the first handheld scientific calculator, the HP-35. It was quite the engineering feat, since equivalent machines of the day were bulky desktop affairs, if not rack-mounted. [Rob Weinstein] has long been a fan of HP calculators, and used an HP-41C for many years until it wore... | 40 | 10 | [
{
"comment_id": "6454576",
"author": "Truth",
"timestamp": "2022-04-07T17:21:46",
"content": "> But even more complicated is the serial processor architecture of the calculator.This made me instantly think of SERV the SErial RISC-V CPU (https://github.com/olofk/serv). Where Olof Kindgren, the creato... | 1,760,372,734.300044 | ||
https://hackaday.com/2022/04/07/inside-an-11-ton-clock-with-1000-pieces/ | Inside An 11 Ton Clock With 1,000 Pieces | Al Williams | [
"clock hacks"
] | [
"big ben",
"clock"
] | We aren’t ashamed to admit it, but we like clocks. We’ve built quite a few and clock projects show up regularly in the pages of Hackaday. But there is one clock that is among the most famous in the world: Britain’s Big Ben. It has been getting some repairs and the BBC was nice enough to
make a video of the giant mechan... | 21 | 8 | [
{
"comment_id": "6454549",
"author": "Michael Henderson",
"timestamp": "2022-04-07T16:01:49",
"content": "How does adding mass to a pendulum make it swing faster?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454551",
"author": "Bob",
"time... | 1,760,372,734.56738 | ||
https://hackaday.com/2022/04/07/just-what-on-earth-is-a-therm/ | Just What On Earth Is A Therm? | Jenny List | [
"Current Events",
"Featured",
"Interest",
"Rants",
"Slider"
] | [
"customary units",
"gas",
"imperial units",
"therm",
"units"
] | With the news here in Europe full of the effect of the war in Ukraine on gas supplies and consequently, prices, there it was on the radio news: a unit of measurement so uniquely British that nobody uses it in the real world and nobody even has a clue what it really means. We’re speaking of
the Therm
, one of those word... | 86 | 22 | [
{
"comment_id": "6454499",
"author": "DainBramage",
"timestamp": "2022-04-07T14:07:08",
"content": "I wonder how many therms it takes to raise a cubic smoot of water one degree Rankine?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454509",
"author... | 1,760,372,734.464729 | ||
https://hackaday.com/2022/04/07/custom-macro-keyboard-with-sweet-backlighting/ | Custom Macro Keyboard With Sweet Backlighting | Bryan Cockfield | [
"Peripherals Hacks"
] | [
"32u4",
"3d printed",
"arduino",
"custom",
"keyboard",
"led",
"leonardo",
"macro",
"pushbutton",
"switch",
"usb"
] | From the smallest 60% keyboards for those with no desk space to keyboards with number pads for those doing data entry all day, there’s a keyboard size and shape for just about everyone. The only problem, even with the largest keyboards, is that they’re still fairly limited in what they can do. If you find yourself wish... | 10 | 4 | [
{
"comment_id": "6454485",
"author": "werfwe",
"timestamp": "2022-04-07T12:58:17",
"content": "create small keyboard is easy because gpio is bighow create big keyboard with 250 keys?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454740",
"author": ... | 1,760,372,734.344045 | ||
https://hackaday.com/2022/04/07/turning-old-plotter-parts-into-a-smooth-camera-slider/ | Turning Old Plotter Parts Into A Smooth Camera Slider | Robin Kearey | [
"digital cameras hacks"
] | [
"camera slider",
"cutting plotter",
"stepper motor"
] | Taking apart old stuff and re-using the parts to make something new is how many hackers first got started in the world of mechanical and electronic engineering. But even after years working in industry we still get that tinge of excitement whenever someone offers us an old device “for parts”, and immediately begin to i... | 3 | 2 | [
{
"comment_id": "6454532",
"author": "Thermio",
"timestamp": "2022-04-07T15:16:56",
"content": "Nice, I love these sorts of builds. Remember when repstraps and plotters were made of re-used assemblies like this?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6... | 1,760,372,734.509796 | ||
https://hackaday.com/2022/04/06/old-casio-calculator-learns-new-tricks/ | Old Casio Calculator Learns New Tricks | Chris Wilkinson | [
"classic hacks",
"Software Hacks"
] | [
"assembly",
"calculator",
"casio",
"conways game of life",
"forth",
"game of life"
] | [George Stagg] recently found himself stung by the burden of free time while in lockdown. Needing a project to keep him occupied, he decided to
upgrade his 90s Casio CFX-9850G calculator to run custom machine code
.
All [George] really wanted was for his vintage calculator to understand Reverse Polish Notation (RPN). T... | 12 | 11 | [
{
"comment_id": "6454445",
"author": "Severe Tire Damage",
"timestamp": "2022-04-07T05:46:16",
"content": "Now this is true hacking. Anything that begins with reading out a ROM and disassembling the contents is playing the game by the best of rules.",
"parent_id": null,
"depth": 1,
"rep... | 1,760,372,734.617814 | ||
https://hackaday.com/2022/04/06/a-gaggle-of-boards-makes-for-an-i2c-playground/ | A Gaggle Of Boards Makes For An I2C Playground | Tom Nardi | [
"Parts",
"Software Hacks"
] | [
"i2c",
"logic analyser",
"serial communications",
"sniffing"
] | It’s not much of a stretch to assume that the majority of Hackaday readers are at least familiar with I2C. In fact, there’s an excellent chance that anyone who’s ever done more with an Arduino than blink the onboard LED has at one time or another used the serial communication protocol to talk to a sensor, display, or o... | 8 | 3 | [
{
"comment_id": "6454455",
"author": "WereCatf",
"timestamp": "2022-04-07T06:58:57",
"content": "Even though I2C may seem pretty simple at first, it too has all sorts of aspects to it that many people (hobbyists?) seem to not know about, like e.g. I’ve seen quite a few projects where the developer d... | 1,760,372,734.66851 | ||
https://hackaday.com/2022/04/06/accessible-arduino-mouse-helps/ | Accessible Arduino Mouse Helps | Al Williams | [
"Arduino Hacks"
] | [
"accessibility",
"arduino",
"mouse",
"MPU-6050"
] | We enjoy access to cheap stuff because of the mass market for things like mice, keyboards, and cell phones. But if you need a device that doesn’t have mass appeal, you will have to pay a lot more if you can find it at all. However, with modern techniques like 3D printing and Arduino-like microcontrollers being cheap an... | 3 | 2 | [
{
"comment_id": "6454401",
"author": "Hirudinea",
"timestamp": "2022-04-07T00:12:10",
"content": "It may sound corny but helping people is the best of hacking.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6454484",
"author": "Nath",
"timest... | 1,760,372,734.705979 | ||
https://hackaday.com/2022/04/06/hacking-a-fuel-sensor-into-a-portable-tank-literally/ | Hacking A Fuel Sensor Into A Portable Tank, Literally | Tom Nardi | [
"Transportation Hacks"
] | [
"boat",
"float sensor",
"fuel tank",
"gas tank"
] | Regular readers of Hackaday will know that the projects we feature are generally of the high-tech variety. Microcontrollers, 3D printed parts, embedded Linux, lots of wires, that sort of thing. But that’s not to say we don’t appreciate the somewhat more visceral builds out there; after all, hacking is about creative pr... | 23 | 12 | [
{
"comment_id": "6454353",
"author": "limroh",
"timestamp": "2022-04-06T21:03:47",
"content": "> though it should be noted that the resulting damage to the threads will likely make it difficult to remove the nuts in the future.I don’t know how much torque was required for that but maybe cutting slit... | 1,760,372,734.88989 | ||
https://hackaday.com/2022/04/06/pong-in-hardware-virtually/ | Pong In Hardware… Virtually | Al Williams | [
"classic hacks",
"Software Hacks"
] | [
"falstad",
"pong"
] | We are big fans of the Falstad circuit simulator. Sure, it isn’t perfect, but there’s nothing else like it when you want to whip up a simple circuit. But we were blown away when we saw a more or less complete hardware implementation of
Pong
in Falstad
. No kidding. Starting with
the original schematics
, there are mult... | 5 | 4 | [
{
"comment_id": "6454561",
"author": "Stiletto",
"timestamp": "2022-04-07T16:35:05",
"content": "Pong has been emulated in MAME using its own integrated circuit simulation engine for many years now. (https://www.mamedev.org)This is still cool tho.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,372,734.931828 | ||
https://hackaday.com/2022/04/06/whales-help-scientists-investigate-the-mystery-of-menopause/ | Whales Help Scientists Investigate The Mystery Of Menopause | Lewin Day | [
"Hackaday Columns",
"Science",
"Slider"
] | [
"menopause",
"menstrual cycle",
"whale",
"whales"
] | Menopause is the time of life when menstrual periods come to a halt, and a woman is no longer able to bear children. The most obvious cause of menopause is when the ovaries run out of eggs, though it can also be caused by a variety of other medical processes. While menopause is in many ways well-understood, the biologi... | 7 | 5 | [
{
"comment_id": "6454331",
"author": "RW ver 0.0.3",
"timestamp": "2022-04-06T19:58:07",
"content": "[b]Whale oil[/b] is thankfully no longer harvested giving us more opportunity to study these fascinating creatures. Though also large [b]beef[/b] cattle apparently do not have menopause, or maybe are... | 1,760,372,734.994063 | ||
https://hackaday.com/2022/04/06/magnetic-hockey-game-uses-a-555/ | Magnetic Hockey Game Uses A 555 | Jenny List | [
"Toy Hacks"
] | [
"555",
"hockey",
"magnetic hockey"
] | We love a good project here at Hackaday, particularly one that makes us want to pick it up and have a go at whatever it does for ourselves. And when we see such a project and find that it contains the One Chip To Rule Them All (otherwise known as the NE555 timer), our collective cup runneth over with joy. So
[Andrew Fe... | 1 | 1 | [
{
"comment_id": "6454413",
"author": "Piecutter",
"timestamp": "2022-04-07T01:27:16",
"content": "Cool!But I have to admit being a bit disappointed that it’s not a maglev table.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,735.04318 | ||
https://hackaday.com/2022/04/06/grid-level-energy-storage-and-the-challenge-of-storing-energy-efficiently/ | Grid-Level Energy Storage And The Challenge Of Storing Energy Efficiently | Maya Posch | [
"Current Events",
"Engineering",
"Featured",
"Slider"
] | [
"battery storage",
"grid storage",
"redox flow batteries"
] | Although every electrical grid begins with the production of electricity, there are times when storing this power in some form instead of using it immediately is highly convenient. Today’s battery-powered gadgets are an obvious example of such time-shifting, but energy storage plays a major role on the grid itself, too... | 118 | 17 | [
{
"comment_id": "6454224",
"author": "Dude",
"timestamp": "2022-04-06T14:20:34",
"content": ">Although a reasonable solution may be found in the futurePower-to-X. Synthetic petrochemicals, basically. The only way to economically store huge amounts of energy and produce all the stuff that we’re using... | 1,760,372,735.294918 | ||
https://hackaday.com/2022/04/06/helping-the-war-effort-with-3d-printed-tourniquets/ | Helping The War Effort With 3D Printed Tourniquets | Dan Maloney | [
"Medical Hacks"
] | [
"emergency medicine",
"medical",
"tourniquet",
"ukraine"
] | It’s a sad statement on the modern world that even civilians are at risk for severe traumatic injuries in the course of going about their lives. And if something unthinkable happens to you or someone you love, here’s hoping both that the injury can be treated, and that someone is nearby who both knows what to do and is... | 32 | 13 | [
{
"comment_id": "6454188",
"author": "sweethack",
"timestamp": "2022-04-06T11:57:42",
"content": "The first rule of a tourniquet is to never use it. You can cause multiple injuries while using it (even if done right!). Installing a tourniquet means you’re giving up in saving the member. You are like... | 1,760,372,735.44588 | ||
https://hackaday.com/2022/04/06/build-a-tpm-module-for-your-server/ | Build A TPM Module For Your Server | Jenny List | [
"computer hacks",
"Security Hacks"
] | [
"ASRock",
"TPM",
"Trusted Platform Module"
] | One of the big stories surrounding the announcement of Windows 11 was that it would require support for TPM 2.0, or Trusted Platform Module, to run. This takes the form of an on-board cryptographic processor, which Microsoft claims will help against malware, but which perhaps more importantly for Redmond, can be used t... | 60 | 15 | [
{
"comment_id": "6454150",
"author": "Jonathan Wilson",
"timestamp": "2022-04-06T08:16:07",
"content": "Wouldn’t surprise me if part of the reason for the TPM requirement is to help prevent illegal copies of Windows 11 from being used.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,735.542343 | ||
https://hackaday.com/2022/04/05/fix-every-broken-via-to-return-this-game-to-life/ | Fix Every Broken Via To Return This Game To Life | Jenny List | [
"Nintendo Hacks",
"Repair Hacks"
] | [
"nintendo",
"repair",
"rework",
"soldering"
] | We all know the havoc that water in the wrong place can do to a piece of electronics, and thus we’ve probably all had devices damaged beyond repair. Should [Solderking] have thrown away the water-damaged PCB from a Nintendo Pokemon Ruby cartridge? Of course he should, but when faced with a board on which all vias had s... | 11 | 7 | [
{
"comment_id": "6454116",
"author": "Mike",
"timestamp": "2022-04-06T05:47:07",
"content": "I wonder if it was just a few vias that needed replacing. Though this works if you gotta catch them all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6454124",
"... | 1,760,372,735.590702 | ||
https://hackaday.com/2022/04/05/rc-car-test-tether-takes-car-testing-to-new-lengths/ | RC Car Test Tether Takes Car Testing To New Lengths | Ryan Flowers | [
"car hacks"
] | [
"distance",
"failure mode",
"R/C car",
"radio controlled car"
] | It’s fascinating to see what happens when a creative hacker is given a set of constraints to work within. [rctestflight] found themselves in a very specific set of circumstances: Free RC cars from sponsors, and no real purpose for them. Instead of just taking them apart to see what made them tick (itself the past time ... | 8 | 5 | [
{
"comment_id": "6454410",
"author": "Richard Taillon",
"timestamp": "2022-04-07T00:52:32",
"content": "Hello there, just wondering if you have tested the aarma typhon 3s to the typhon 6s. Do you have any spare typhon 3s parts? I need a new wing. Mine snapped at the park when I was driving it. Can... | 1,760,372,735.372903 | ||
https://hackaday.com/2022/04/05/a-3d-printed-35mm-movie-camera/ | A 3D Printed 35mm Movie Camera | Jenny List | [
"Video Hacks"
] | [
"35mm film",
"camera",
"movie camera"
] | Making a camera can be as easy as taking a cardboard box with a bit of film and a pin hole, but making a more accomplished camera requires some more work. A movie camera has all the engineering challenges as a regular camera with the added complication of a continuous film transport mechanism and shutter. Too much work... | 19 | 8 | [
{
"comment_id": "6454076",
"author": "NQ",
"timestamp": "2022-04-06T00:16:56",
"content": "This is the perfect camera for a bigfoot sighting!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6454092",
"author": "Paul",
"timestamp": "2022-04-06T02:14:16",... | 1,760,372,735.64502 | ||
https://hackaday.com/2022/04/05/led-filaments-make-a-retro-clock-without-any-retro-parts/ | LED Filaments Make A Retro Clock Without Any Retro Parts | Robin Kearey | [
"clock hacks"
] | [
"LED filament",
"numitron clock",
"seven segment LED"
] | We love clock projects here at Hackaday, and we’ve seen many beautiful designs based on a wide variety of display technologies. There are various types of glass tubes like Nixies, Numitrons and classic VFD displays, all of which have that warm “retro” glow to them. Then there’s LEDs, which are useful for making cool pi... | 9 | 8 | [
{
"comment_id": "6454048",
"author": "Christian",
"timestamp": "2022-04-05T20:41:50",
"content": "Beautiful! Very well done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6454057",
"author": "macsimski",
"timestamp": "2022-04-05T21:42:39",
"conten... | 1,760,372,735.691211 | ||
https://hackaday.com/2022/04/05/solder-pot-from-the-kitchen/ | Solder Pot From The Kitchen | Al Williams | [
"Tool Hacks"
] | [
"desoldering",
"solder pot"
] | We aren’t shy of dangerous projects, but, then again,
a large cooking pan full of lead solder
might be a bit much, even for us. It goes without saying that you should be extremely careful and you won’t want to use any of the cookware again for any other purpose. You can see the build in the video below.
On the one hand... | 15 | 6 | [
{
"comment_id": "6454017",
"author": "Joseph Chiu (@toybuilder)",
"timestamp": "2022-04-05T18:42:56",
"content": "The nice thing about a proper solder pot is that you can have just enough solder to form a crown of solder. It makes it easier to “roll” the board onto and off the solder, which I find r... | 1,760,372,735.741914 | ||
https://hackaday.com/2022/04/05/magpies-help-each-other-escape-tracking-devices-with-this-one-weird-trick/ | Magpies Help Each Other Escape Tracking Devices With This One Weird Trick | Lewin Day | [
"Hackaday Columns",
"Science",
"Slider"
] | [
"bird",
"magpie",
"science",
"tracking",
"tracking device"
] | Scientists who work with animals love to track their movements. This can provide interesting insights on everything from mating behaviour, food sources, and even the way animals behave socially – or anti-socially, as the case may be.
This is normally achieved with the use of tracking devices, affixed to an animal so th... | 19 | 10 | [
{
"comment_id": "6454003",
"author": "RW ver 0.0.3",
"timestamp": "2022-04-05T17:56:08",
"content": "What you need for a somewhat intelligent species is a device with a colorful screen and maybe some fun games on which it will carry around everywhere of it’s own volition.",
"parent_id": null,
... | 1,760,372,737.9227 | ||
https://hackaday.com/2022/04/05/a-simple-linear-power-supply-done-well/ | A Simple Linear Power Supply, Done Well | Jenny List | [
"classic hacks",
"Parts"
] | [
"linear power supply",
"power supply",
"psu"
] | When reaching for a power supply design it’s normal here in 2022 to reach for a switching design. They’re lightweight, very efficient, and often available off-the-shelf at reasonable prices. Their benefits are such that it’s become surprisingly rare to see a traditional linear power supply with a mains-frequency transf... | 45 | 17 | [
{
"comment_id": "6453971",
"author": "Michael Black",
"timestamp": "2022-04-05T15:55:31",
"content": "I thought the cost of transformers factored in. Even decades ago, I’d hesitate to put a transformer in a project, because those generally cost money. You could scrounge, but consumer equipment oft... | 1,760,372,737.60171 | ||
https://hackaday.com/2022/04/05/hacker-dictionary-rs-485-will-go-the-distance/ | Hacker Dictionary: RS-485 Will Go The Distance | Arya Voronova | [
"Featured",
"how-to",
"Skills",
"Slider"
] | [
"differential pair",
"differential signaling",
"impedance",
"max485",
"Modbus",
"multidrop bus",
"rs-485",
"rs485"
] | RS485 is a communication standard that should be part of the advanced hardware hacker’s arsenal; it’s not commonly encountered, but powerful exactly when you need it. It’s a physical layer interface for wired communications that uses a single differential pair for noise immunity, has good long-distance properties, and ... | 59 | 28 | [
{
"comment_id": "6453949",
"author": "Andy Pugh",
"timestamp": "2022-04-05T14:05:25",
"content": "RS485 is commonly used to control the spindle VFD on hobby CNC routers.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453985",
"author": "paulvdh",
... | 1,760,372,737.750924 | ||
https://hackaday.com/2022/04/05/wireless-bootloader-saves-you-from-swapping-rom-chips/ | Wireless Bootloader Saves You From Swapping ROM Chips | Robin Kearey | [
"Wireless Hacks"
] | [
"6502",
"bootloader",
"nRF24L01+"
] | Flashing your code into an Arduino, an ESP32 or any other modern microcontroller platform is pretty straightforward: connect the device through USB, fire up the appropriate software platform, and press “program”. But those who followed embedded programming classes in the ’80s and ’90s will remember a more complicated p... | 14 | 5 | [
{
"comment_id": "6453940",
"author": "d00d",
"timestamp": "2022-04-05T12:34:16",
"content": "I really like the idea for the development convenience, but the security enthusiast in me smiles and sarcastically has to say, “Congrats on the new back door!”",
"parent_id": null,
"depth": 1,
"r... | 1,760,372,737.647216 | ||
https://hackaday.com/2022/04/04/samd11-provides-two-serial-ports-for-price-of-one/ | SAMD11 Provides Two Serial Ports For Price Of One | Tom Nardi | [
"Microcontrollers",
"Tool Hacks"
] | [
"serial",
"serial adapter",
"USB to serial"
] | While the average computer user likely hasn’t given much thought to the lowly serial port in decades, the same can’t be said for the hardware hacker. Cheap serial-to-USB adapters are invaluable for snooping debug ports or programming chips, and if you ask us, you can never have too many laying around the bench. [Quenti... | 22 | 7 | [
{
"comment_id": "6453701",
"author": "bdgr",
"timestamp": "2022-04-04T16:33:41",
"content": "” 404The page you’re looking for could not be found.”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453702",
"author": "some guy",
"timestamp": "20... | 1,760,372,737.859968 | ||
https://hackaday.com/2022/04/04/a-power-button-for-raspberry-pi-courtesy-of-device-tree-overlays/ | A Power Button For Raspberry Pi, Courtesy Of Device Tree Overlays | Maya Posch | [
"ARM",
"Featured",
"Interest",
"Linux Hacks",
"Raspberry Pi",
"Skills",
"Slider"
] | [
"Device Tree",
"device tree overlay",
"linux kernel"
] | As a standard feature of the Linux kernel,
device tree overlays
(DTOs) allow for easy enabling and configuration of features and drivers, such as those contained within the standard firmware of a Raspberry Pi system. Using these DTOs it’s trivial to set up features like as a soft power-off button, triggering an externa... | 11 | 7 | [
{
"comment_id": "6453674",
"author": "steelman",
"timestamp": "2022-04-04T14:29:57",
"content": "DTB is loaded by the Linux kernel on bootNo, it is loaded by a bootloader in parallel with the kernel.On platforms that do not use a BIOS-like system to auto-detect devicesBIOS was never meant for device... | 1,760,372,738.033294 | ||
https://hackaday.com/2022/04/04/turn-timing-diagrams-into-ascii-art-for-friendlier-pasting/ | Turn Timing Diagrams Into ASCII Art, For Friendlier Pasting | Donald Papp | [
"Microcontrollers",
"Software Hacks"
] | [
"ascii art",
"json",
"timing diagram",
"verilog",
"wavedrom"
] | We all use text-based fields at one time or another, and being limited to ASCII only can end up being a limitation. That’s what led [Luke Wren] to create
asciiwave
, a fantastic tool that turns WaveDrom timing diagrams into ASCII art. Unlike images, ASCII timing diagrams are suitable for pasting into comment fields, ch... | 21 | 11 | [
{
"comment_id": "6453616",
"author": "RetepV",
"timestamp": "2022-04-04T11:16:11",
"content": "Ok, nice for sake of argument. But you loose small but important timing facts, like the wire only going high a few nanoseconds after the clock went high.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,372,737.982174 | ||
https://hackaday.com/2022/04/04/quick-swap-socket-for-stemma-qt-experiments/ | Quick-Swap Socket For Stemma QT Experiments | Arya Voronova | [
"Misc Hacks"
] | [
"hot swap sockets",
"i2c",
"JST",
"stemma",
"stemma qt"
] | [kmatch98] shares a quick hack with us over at Hackaday.io – a 3D-printed
socket for Adafruit Stemma QT-based I2C modules
. Since Adafruit has standardized the dimensions for their Stemma QT boards, it’s possible to make a socket that would fit many different sensors at once, where the board just slides in.
This remind... | 6 | 2 | [
{
"comment_id": "6453646",
"author": "Frankel",
"timestamp": "2022-04-04T12:46:27",
"content": "Elegant and free as in freedom 3d printed bracket! Replacing cheap dupont wires still is easier than dealing with a loose almost proprietary connector. I’d solder the classic pins to the board myself as l... | 1,760,372,737.358539 | ||
https://hackaday.com/2022/04/03/servo-surgery-teaches-us-diy-encoder-implants/ | Servo Surgery Teaches Us DIY Encoder Implants | Arya Voronova | [
"Robots Hacks"
] | [
"closed loop servo motors",
"digital servo",
"ds3225",
"hobby servo",
"optical encoder",
"robot arm",
"robotic arm",
"servo control",
"Servo driver",
"servo motor",
"servo motors",
"servos"
] | Today, we shall talk about how [Adam Bäckström]
took a DS3225 servo and rebuilt it to improve its accuracy
, then built a high-precision robot arm with those modified servos to show just how much of an improvement he’s got – up to 36 times better positional accuracy. If this brings a
déjà vu
feeling, that’s because
we’... | 14 | 6 | [
{
"comment_id": "6453566",
"author": "Matt",
"timestamp": "2022-04-04T06:13:18",
"content": "Oh my god. I am amazed. Also 2:15-2:16 that was awesome =)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6453584",
"author": "moeb",
"timestamp": "2022-04-04T... | 1,760,372,737.797502 | ||
https://hackaday.com/2022/04/03/tshwatch-helps-you-learn-more-about-yourself/ | TshWatch Helps You Learn More About Yourself | Arya Voronova | [
"Wearable Hacks"
] | [
"BME680",
"data logger",
"data logging",
"datalogger",
"DataLogging",
"DS3231",
"DS3231 RTC",
"e-ink",
"e-ink display",
"eink",
"ESP32",
"ESP32 ULP",
"health hacking",
"health monitor",
"MAX30101",
"smartwatch",
"ULP",
"wearable",
"wearable electronics",
"Wearables"
] | TshWatch
is a project by [Ivan / @pikot] that he’s been working on for the past two years. [Ivan] explains that he aims to create a tool meant to help you understand your body’s state. Noticing when you’re stressed, when you haven’t moved for too long, when your body’s temperature is elevated compared to average values... | 13 | 3 | [
{
"comment_id": "6453543",
"author": "PWalsh",
"timestamp": "2022-04-04T02:53:31",
"content": "I’m right now looking for a personal training monitor that doesn’t require a cloud presence or send my info to some remote company for processing.They don’t exist.I might recommend buttons on the device th... | 1,760,372,737.406939 | ||
https://hackaday.com/2022/04/03/hackaday-links-april-3-2022/ | Hackaday Links: April 3, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links",
"Slider"
] | [
"2022 Hackaday Prize",
"color code",
"components",
"computed tomography",
"CT Scan",
"design",
"first aid",
"hackaday links",
"PLA",
"Secret Life Of Components",
"splint",
"sustainability",
"Tim Hunkin"
] | It’s that time of year again —
the 2022 Hackaday Prize has officially launched
, and we’re excited to see what it turns out. This year’s theme is “Sustainability, Resilience, and Circularity,” and just in time, too; if the last couple of years has taught us anything, it’s that we’ve got a lot of failure points built in... | 7 | 4 | [
{
"comment_id": "6453519",
"author": "Mog",
"timestamp": "2022-04-03T23:41:44",
"content": "I’m reading through Luiz’s component guide right now, and agreed 100%, it’s fantastic!My only hope is that I hope I can get in touch with him to offer some editing assistance. While not detracting at all from... | 1,760,372,738.080537 | ||
https://hackaday.com/2022/04/05/how-did-dolby-digital-sound-work-on-film/ | How Did Dolby Digital Sound Work On Film? | Jenny List | [
"Video Hacks"
] | [
"Dolby Digital",
"film sound",
"sound"
] | When we go to the cinema and see a film in 2022, it’s very unlikely that what we’re seeing will in fact be a film. Instead of large reels of transparent film fed through a projector, we’ll be watching the output of a high-quality digital projector. The advantages for the cinema industry in terms of easier distribution ... | 27 | 7 | [
{
"comment_id": "6453906",
"author": "Viktor",
"timestamp": "2022-04-05T08:18:29",
"content": "Dolby lobby.Where’s the open source?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453911",
"author": "Frankel",
"timestamp": "2022-04-05T08:46:4... | 1,760,372,738.144688 | ||
https://hackaday.com/2022/04/04/esp32-is-two-better-than-one/ | ESP32: Is Two Better Than One? | Al Williams | [
"Microcontrollers",
"Wireless Hacks"
] | [
"ESP32",
"wifi",
"wifi antenna"
] | We’ve looked at the WROOM-DA module before. It’s an ESP32 with two antennas, and [Andreas Spiess] says it is the
ugliest ESP32
he’s ever seen. But beauty is only skin deep, after all. Did [Andreas] find beauty in the twin antennas? Watch the video below and see for yourself.
According to the block diagram, the twin ant... | 10 | 8 | [
{
"comment_id": "6453874",
"author": "ambutura",
"timestamp": "2022-04-05T05:10:07",
"content": "Typo – 8MB of memory",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453886",
"author": "Elliot Williams",
"timestamp": "2022-04-05T06:14:16",
... | 1,760,372,738.230673 | ||
https://hackaday.com/2022/04/04/detailed-big-screen-multimeter-review/ | Detailed Big Screen Multimeter Review | Al Williams | [
"Reviews",
"Teardown"
] | [
"multimeter",
"review",
"test equipment review"
] | It seems like large-screen cheap meters are really catching on. [TheHWcave] does a very detailed review of a
KAIWEETS KM601
, which is exactly the same as a few dozen other Chinese brands you can get from the usual sources. You can see the review in the video below.
If we learned nothing else from this video, we did le... | 5 | 4 | [
{
"comment_id": "6453879",
"author": "Nikolai",
"timestamp": "2022-04-05T05:48:04",
"content": "I really missed my ц4353https://www.youtube.com/watch?v=uYg3tJjDWpM",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453920",
"author": "demon256",
... | 1,760,372,738.185645 | ||
https://hackaday.com/2022/04/04/rubber-band-slide-rule-doesnt-slide-but-rotates/ | Rubber Band “Slide Rule” Doesn’t Slide, But Rotates | Al Williams | [
"Misc Hacks"
] | [
"logarithms",
"math",
"slide rule"
] | Around here we mostly enjoy slide rules. We even have our own collections including some cylindrical and circular ones. But [Mathologer] discusses a recent Reddit post that explains a circular slide rule-like device using
a wheel and a stretchable rubber band
. While it probably would be difficult to build the actual d... | 11 | 4 | [
{
"comment_id": "6453820",
"author": "PWalsh",
"timestamp": "2022-04-04T23:03:34",
"content": "Am I the only one who entered 25.8069 into a calculator and squared it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453825",
"author": "Bryantherobotma... | 1,760,372,738.402098 | ||
https://hackaday.com/2022/04/04/monitor-space-weather-and-the-atmosphere-with-your-cellphone/ | Monitor Space Weather And The Atmosphere With Your Cellphone! | Jenny List | [
"Cellphone Hacks",
"Science"
] | [
"atmospherics",
"cellphone",
"gnss"
] | Above our heads, the atmosphere is a complex and unpredictable soup of gasses and charged particles subject to the influence of whatever the Sun throws at it. Attempting to understand it is not for the faint-hearted, so it has for centuries been the object of considerable research. A new project from the European Space... | 9 | 5 | [
{
"comment_id": "6453778",
"author": "weather enjoyer",
"timestamp": "2022-04-04T20:19:09",
"content": "check out dark sky app if this topic is of interest.barometric crowdsourced weather modelingit was acquired by apple a while back and still operates today. it has provided me with many timely and ... | 1,760,372,738.520549 | ||
https://hackaday.com/2022/04/04/levitate-the-ne555-way/ | Levitate The NE555 Way | Jenny List | [
"classic hacks"
] | [
"555",
"ultrasonic levitation",
"ultrasound"
] | Ultrasonic levitation — the practice of creating a standing wave between two ultrasonic sources and positioning lightweight objects such that they can float in the pressure minimums between them — has been a source of fascination to more than one experimenter. [Peter Lin] demonstrated this in the video below the break,... | 16 | 5 | [
{
"comment_id": "6453781",
"author": "Jon",
"timestamp": "2022-04-04T20:21:08",
"content": "Should have used a…. oh dang, nevermind.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453785",
"author": "Tadpole",
"timestamp": "2022-04-04T20:27:... | 1,760,372,738.474623 | ||
https://hackaday.com/2022/04/04/confessions-of-a-crimpoholic/ | Confessions Of A Crimpoholic | Dan Maloney | [
"Hackaday Columns",
"Rants",
"Slider",
"Tool Hacks"
] | [
"crimping",
"rants",
"tools"
] | Hi, my name is Dan and I’m a crimpoholic.
Honestly, I didn’t know I was a serial abuser of crimping tools until this weekend. I’ve been working on a small solar power system, and on Saturday I found myself struggling to get the BMS installed on the battery. I bought a Bluetooth dongle to connect the BMS to a smartphone... | 80 | 20 | [
{
"comment_id": "6453712",
"author": "SteveS",
"timestamp": "2022-04-04T17:09:42",
"content": "Great! an excellent opportunity to ask if anybody knows of a good crimping tool for the 2mm Hirose connectors that we all use once in a whileI use them occasionally enough to want a real crimper (rather th... | 1,760,372,738.951613 | ||
https://hackaday.com/2022/04/03/is-your-device-actually-usb-3-0-or-is-the-connector-just-blue/ | Is Your Device Actually USB 3.0, Or Is The Connector Just Blue? | Donald Papp | [
"Repair Hacks",
"Teardown"
] | [
"counterfeit",
"grey market",
"HDMI capture device",
"teardown",
"usb"
] | Discount (or even grey market) electronics can be economical ways to get a job done, but one usually pays in other ways. [Majenko] ran into this when a need to capture some HDMI video output
ended up with rather less than was expected
.
Faced with two similar choices of discount HDMI capture device, [Majenko] opted for... | 66 | 21 | [
{
"comment_id": "6453480",
"author": "Ghent+the+Slicer",
"timestamp": "2022-04-03T20:20:36",
"content": "Somewhere in PRC:Employee: “Boss if we use blue plastic, we can charge more….’cause…”Boss: “Blue it is”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "64... | 1,760,372,738.772058 | ||
https://hackaday.com/2022/04/03/flashing-ti-chips-with-an-esp/ | Flashing TI Chips With An ESP | Bryan Cockfield | [
"Microcontrollers"
] | [
"browser",
"c/c++",
"ESP32",
"flashing",
"library",
"microcontroller",
"programming",
"server",
"texasinstruments",
"ti",
"wifi"
] | Texas Instruments is best known to the general public for building obsolete calculators and selling them at extraordinary prices to students, but they also build some interesting (and reasonably-priced) microcontrollers as well. While not as ubiquitous as Atmel and the Arduino platform, they can still be found in plent... | 29 | 11 | [
{
"comment_id": "6453445",
"author": "Rumble_in_the_Jungle",
"timestamp": "2022-04-03T17:13:12",
"content": "I will be devil’s advocate. Advantage of having TI obsolete calc is certainty of its output. If there was any bug, it will be found in 30 years by countless engineers. Not so much with app wr... | 1,760,372,738.836458 | ||
https://hackaday.com/2022/04/03/3d-printering-dont-tune-to-a-middle-c-after-all/ | Don’t Tune Your 3D Printer To Middle ‘C’ After All | Dave Rowntree | [
"3d Printer hacks"
] | [
"3d printing",
"belt tension",
"chugging temperature",
"stepper motor"
] | Layer shift caused by the belt being way too loose.
3D printer belt tension seems like a simple thing to deal with — you set the tension and then check it’s good now and then. If it gets really loose, then the teeth can slip and you’ll get some shifts in the print, ruining it, but its an easy fix. But, we hear you ask,... | 22 | 8 | [
{
"comment_id": "6453449",
"author": "Capo Mafia",
"timestamp": "2022-04-03T17:26:17",
"content": "Ugh… tensioning to a frequency only works if a) the belt mass/length is always the same, and b) the length of the belt is always the same. In other words, it may be OK for a particular model with a pa... | 1,760,372,739.013895 | ||
https://hackaday.com/2022/04/03/using-statistics-instead-of-sensors/ | Using Statistics Instead Of Sensors | Bryan Cockfield | [
"Machine Learning"
] | [
"coefficient of determination",
"coffee",
"espresso",
"jupyter",
"linear",
"machine",
"machine learning",
"model",
"python",
"r2",
"regression",
"statistics"
] | Statistics often gets a bad rap in mathematics circles for being less than concrete at best, and being downright misleading at worst. While these sentiments might ring true for things like political polling, it hides the fact that statistical methods can be put to good use in engineering systems with fantastic results.... | 9 | 6 | [
{
"comment_id": "6453396",
"author": "Frankel",
"timestamp": "2022-04-03T11:33:05",
"content": "Glad to be a savage myself. I drink straight from my Senseo pad machine with unskimmed milk and 1 sweetener tab. I just wonder if it wasn’t easier to use one of these Dynalon Ball Flow Indicator (check go... | 1,760,372,739.059345 | ||
https://hackaday.com/2022/04/03/this-big-3d-printed-game-boy-actually-runs-macos/ | This Big 3D-Printed Game Boy Actually Runs MacOS | Robin Kearey | [
"handhelds hacks"
] | [
"3D printed enclosure",
"game boy",
"hackintosh"
] | While mobile gaming has largely moved to smartphones these days, the classic Game Boy remains a hugely popular platform for retro enthusiasts, owing in no small part to its enormous library of quality games. The original Game Boy hardware is pretty much bulletproof, but feels a bit outdated today because it lacks moder... | 3 | 1 | [
{
"comment_id": "6453390",
"author": "jpa",
"timestamp": "2022-04-03T10:49:52",
"content": "Once the M1 Macbooks start hitting scrap piles, we may see some very interesting hacks. The motherboard is pretty tiny so it could fit many kinds of devices, with display connected through USB-C.",
"paren... | 1,760,372,739.094873 | ||
https://hackaday.com/2022/04/02/compaq-286-laptop-gets-raspberry-transfusion/ | Compaq 286 Laptop Gets Raspberry Transfusion | Tom Nardi | [
"computer hacks",
"Raspberry Pi"
] | [
"286",
"compaq",
"vintage computer"
] | We know, we know. A lot of you don’t like projects that consist of gutting a vintage computer (or anything else, for that matter) and replacing its internals with modern electronics. But can you
really
look at the clunky
Compaq LTE 286 laptop that [Dmitry Brant] hacked a Raspberry Pi into
and honestly say it’s a machin... | 27 | 16 | [
{
"comment_id": "6453360",
"author": "irox",
"timestamp": "2022-04-03T05:55:36",
"content": "Nice build!If I still had mine, I’d definitely want to try that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6453362",
"author": "Joshua",
"timestamp": "202... | 1,760,372,739.16333 | ||
https://hackaday.com/2022/04/02/retrotechtacular-the-transatlantic-radiotelephone-system-of-the-1930s/ | Retrotechtacular: The Transatlantic Radiotelephone System Of The 1930s | Dan Maloney | [
"Retrotechtacular"
] | [
"radio",
"radiotelephone",
"ssb"
] | With the web of undersea cables lacing the continents together now, it’s hard to imagine that it wasn’t until 1956 that the first transatlantic telephone cable was laid. Sure, there were telegraph cables under the Atlantic starting as early as the late 1800s, but getting your voice across the ocean on copper was a long... | 8 | 2 | [
{
"comment_id": "6453352",
"author": "Isaac",
"timestamp": "2022-04-03T03:55:54",
"content": "If this sort of thing interests you, get a copy of the Bell System Technical Journal for January, 1957 (Google will find it for you). The entire thing is devoted to a set of _very_technical_ discussions on ... | 1,760,372,739.207717 | ||
https://hackaday.com/2022/04/02/monitoring-water-quality-using-lots-of-sensors-and-machine-learning/ | Monitoring Water Quality Using Lots Of Sensors And Machine Learning | Robin Kearey | [
"green hacks"
] | [
"citizen science",
"pollution monitoring",
"water quality"
] | Despite great progress over the past century, more than a billion people still don’t have access to clean drinking water today. Much of the water on Earth’s surface is polluted, but it’s not always easy to tell a dirty stream from a clean one. Professional kit for water analysis can be expensive, which is why [kutluhan... | 9 | 6 | [
{
"comment_id": "6453324",
"author": "sdfdsfdsf",
"timestamp": "2022-04-02T23:21:31",
"content": "What is the point of this? Both in the sense of “why does is require a neutral network to say yea/nea when water quality is a matter of whether any of the particular tests are out of an acceptable range... | 1,760,372,739.252597 | ||
https://hackaday.com/2022/04/02/razor-crest-control-lever-for-the-grogu-in-your-life/ | Razor CrestControl Lever For The Grogu In Your Life | Chris Wilkinson | [
"Microcontrollers",
"Peripherals Hacks"
] | [
"Grogu",
"lever",
"Mandalorian",
"prop",
"star wars",
"throttle"
] | If you’re looking to add a little more sci-fi authenticity to your gaming setup, you could do much worse than this
functional control lever replica
that [ZapWizard] has entered into the Hackaday.io Sci-Fi Contest.
Taking inspiration from Disney’s
The Mandalorian,
this functional prop is almost identical to the throttle... | 9 | 6 | [
{
"comment_id": "6453358",
"author": "jpa",
"timestamp": "2022-04-03T05:25:03",
"content": "“Trinket M0 measures the resistance of an ultra-thin potentiometer, and masquerades as a typical one-axis USB throttle.”Is it masquerading when that is exactly what it is? :)",
"parent_id": null,
"dep... | 1,760,372,739.298461 | ||
https://hackaday.com/2022/04/02/busted-1960s-vacuum-tube-radio-sings-again/ | Busted 1960s Vacuum Tube Radio Sings Again | Chris Wilkinson | [
"Radio Hacks",
"Repair Hacks"
] | [
"am radio",
"radio",
"vacuum tube"
] | Restoring a vintage radio receiver has the potential to be a fun weekend project, but it pays to know what you’re up against. Especially in the case of vacuum tube electronics, running down gremlins in the circuits isn’t always a straightforward process (also,
please
mind the high voltage that is present in old vacuum ... | 12 | 8 | [
{
"comment_id": "6453283",
"author": "Joshua",
"timestamp": "2022-04-02T18:27:01",
"content": "That’s really cool, kudos!By the way, to who ever reads this comment and wonders what to do with an AM radio in 2022 :These AM radios can be used for much more than just medium wave reception.With an exter... | 1,760,372,739.346446 | ||
https://hackaday.com/2022/04/02/eyes-on-the-prize/ | Eyes On The Prize! | Elliot Williams | [
"contests"
] | [
"2022 Hackaday Prize",
"newsletter"
] | This year’s Hackaday Prize is off to a roaring start. And that’s fantastic, because this year’s challenge is a particularly important one: reducing mankind’s footprint on the earth through better energy collection, better resource use, and keeping what we’ve already got running a little bit longer. Not only is this goi... | 4 | 3 | [
{
"comment_id": "6453257",
"author": "Bob",
"timestamp": "2022-04-02T14:17:21",
"content": "This means changing our habits. Quickly. Not something people are generally enthusiastic to do. And, it isn’t zero cost. So, perhaps one or five percent of people will actually make the effort even if lif... | 1,760,372,739.677434 | ||
https://hackaday.com/2022/04/02/briefcase-computer-is-a-glorious-cyberpunk-build/ | Briefcase Computer Is A Glorious Cyberpunk Build | Lewin Day | [
"computer hacks"
] | [
"briefcase computer",
"computer"
] | There are plenty of gaming laptops on the market these days, but none quite fit the requirements of one [ParticularlyPippin]. Thus, they set out on building their own portable computer, ending up with a rig in a briefcase
with a decidedly cyberpunk feel.
We love this?!
The design relies on desktop components, with the ... | 3 | 3 | [
{
"comment_id": "6453232",
"author": "Foldi-One",
"timestamp": "2022-04-02T11:53:06",
"content": "Very nice, though the keyboard like that seems like a bad idea. Still looks great, seems like it should work well, a little ergonomic inconvenience (and probably should pack it with some foam when close... | 1,760,372,739.626492 | ||
https://hackaday.com/2022/04/02/this-motorcycle-uses-water/ | This Motorcycle Uses Water! | Jenny List | [
"Transportation Hacks"
] | [
"electrolysis",
"hydrogen",
"motorcycle"
] | Doing the rounds among motorcycle enthusiasts for the last week has been a slightly unusual machine variously portrayed as running on water or sea water. This sounds like the stuff of the so-called “Free energy” fringe and definitely not the normal Hackaday fare, but it comes alongside pictures of a smiling teenager an... | 38 | 14 | [
{
"comment_id": "6453218",
"author": "mime",
"timestamp": "2022-04-02T09:37:31",
"content": "Ok so yes this is interesting: if you can charge your battery at home with solar, then you can use your scooter/moped to run off water while the battery is electrolysing your water.I wonder what the energy r... | 1,760,372,739.75708 | ||
https://hackaday.com/2022/04/01/making-your-own-technically-hdmi-oled-monitor/ | Making Your Own Technically-HDMI OLED Monitor | Arya Voronova | [
"computer hacks",
"laptops hacks",
"Linux Hacks"
] | [
"DDC",
"hdmi",
"I2C oled",
"oled",
"oled display",
"OLED SSD1306",
"SMBus",
"ssd1306"
] | One day, [mitxela] got bored and decided to
build his own HDMI monitor
– the unconventional way. HDMI has a few high-speed differential pairs, but it also has an I2C interface used for detecting the monitor’s resolution and issuing commands like brightness control. In fact, I2C is the backbone for a lot of side channel... | 17 | 6 | [
{
"comment_id": "6453205",
"author": "CheiftainOTT",
"timestamp": "2022-04-02T07:05:02",
"content": "That’s a pretty dope unconventional way to kill some time with a cheap, small lil OLED display I’m sure many (including myself) just have chilling in their hoarded spare parts collection. 👌 Great jo... | 1,760,372,739.961064 | ||
https://hackaday.com/2022/04/01/using-a-vacuum-diode-to-make-the-cleanest-noise-source-youve-ever-seen/ | Using A Vacuum Diode To Make The Cleanest Noise Source You’ve Ever Seen | Robin Kearey | [
"Radio Hacks"
] | [
"noise measurement",
"noise source",
"vacuum diode"
] | Noise is an annoying but unavoidable part of any engineering project. Fixing noise issues is hard enough, but even just measuring how much noise an amplifier adds to your signal is tricky without proper equipment like a spectrum analyzer. One other thing that makes noise measurements easier is a good, stable noise sour... | 15 | 4 | [
{
"comment_id": "6453181",
"author": "Michael Black",
"timestamp": "2022-04-02T03:17:53",
"content": "Of course, noise is more significant the higher in frequency. I’m not sure 200MHz really covers the important range.At lower frequencies, noise is more significant than what even a tube generates. ... | 1,760,372,739.807306 | ||
https://hackaday.com/2022/04/01/stresses-revealed-with-a-polariscope/ | Stresses Revealed With A Polariscope | Bryan Cockfield | [
"Science"
] | [
"glass",
"lcd",
"light",
"materials",
"plastic",
"polariscope",
"polarized",
"polarizer",
"stress"
] | There are a lot of ways that stresses can show up, at least when discussing materials science. Cracks in concrete are a common enough example, but any catastrophic failure in a material is often attributable to some stress that couldn’t be withstood. If you’re interested in viewing those stresses before they result in ... | 13 | 5 | [
{
"comment_id": "6453168",
"author": "RÖB",
"timestamp": "2022-04-02T01:26:44",
"content": "Rather than paying so much for a small polarising film online you can just pull apart ans old LCD monitor and take the polarizing film out. It’s the size of the monitor picture and costs nothing.Also, for kic... | 1,760,372,740.010985 | ||
https://hackaday.com/2022/04/01/aarp-swipes-right-on-senior-social-network/ | AARP Swipes Right On Senior Social Network | Kristina Panos | [
"News"
] | [
"AARP",
"facebook",
"Facebook is terrible"
] | Can you believe that Facebook turns 18 this year? One of the troubled teenager’s biggest problems is that not only are the young people still leaving in droves, many of the remaining denizens are 50 or over and susceptible to the various predators and sources of misinformation that plague the site.
Well,
AARP wants to ... | 19 | 9 | [
{
"comment_id": "6453126",
"author": "John Q. Public",
"timestamp": "2022-04-01T20:35:58",
"content": "I left Farcebook 5 years ago.It’s a disease. People are more concerned with with other people think instead ow what they know. Once they have your info, it lives forever.Didn’t have things like it ... | 1,760,372,740.176899 | ||
https://hackaday.com/2022/04/01/a-gang-of-hackrfs-makes-for-a-wideband-sdr/ | A Gang Of HackRFs Makes For A Wideband SDR | Arya Voronova | [
"Radio Hacks"
] | [
"clock distribution",
"GnuRadio",
"HackRF",
"sdr",
"wideband receiver",
"wideband sdr"
] | [Oleg Kutkov] decided to
build a wideband SDR
– for satellite communication research and monitoring, you know, the usual. He decided on a battery of HackRF boards – entire eight of them, in fact. Two 1×4 and one 1×2 RF splitters and an LNA on their combined RF input made for a good start to the project, and from there,... | 13 | 8 | [
{
"comment_id": "6453110",
"author": "ganzuul",
"timestamp": "2022-04-01T19:03:01",
"content": "I love this. If multilateration is possible with this gear, I’d love it even more. =)Also, for more pretty visuals:https://kb.ettus.com/Fosphor",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,372,740.066857 | ||
https://hackaday.com/2022/04/01/hackaday-report-will-2022-bring-a-new-dawn-for-the-chip-shortage/ | Hackaday Report: Will 2022 Bring A New Dawn For The Chip Shortage? | Jenny List | [
"Current Events",
"Featured"
] | [
"chip",
"chip industry",
"chip shortage",
"chips"
] | As the world begins to slowly pull itself out of the economic effects of the pandemic, there’s one story that has been on our minds for the past couple of years, and it’s probably on yours too. The chip shortage born during those first months of the pandemic has remained with us despite the best efforts of the industry... | 33 | 11 | [
{
"comment_id": "6453083",
"author": "mjrippe",
"timestamp": "2022-04-01T17:06:07",
"content": "It wasn’t until the sunflower oil bit that I got the joke. Well done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6453084",
"author": "Ryan Flowers",
"t... | 1,760,372,740.262688 | ||
https://hackaday.com/2022/04/01/hackaday-podcast-162-hackaday-prize-is-on-thermal-printers-are-so-hot-these-days-cloud-chambers-are-super-cool-and-batteries-must-be-replaceable/ | Hackaday Podcast 162: Hackaday Prize Is On, Thermal Printers Are So Hot These Days, Cloud Chambers Are Super Cool, And Batteries Must Be Replaceable | Tom Nardi | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Join Hackaday Editor-in-Chief Elliot Williams and Managing Editor Tom Nardi for your weekly review of the best projects, hacks, and bits of news that we can cram into 45 minutes or so. We’ll look at the latest developments in DIY air-powered engines, discuss the whimsical combination of GitHub’s API and a cheap thermal... | 8 | 3 | [
{
"comment_id": "6453123",
"author": "Dude",
"timestamp": "2022-04-01T20:30:14",
"content": "People don’t appreciate how much simply the ability to choose which picture among a hundred to publish changes how photographs relay reality. When there were only 24 pictures on a roll, you had to live with ... | 1,760,372,740.117485 | ||
https://hackaday.com/2022/04/01/3d-printing-a-guitar-neck/ | 3D Printing A Guitar Neck | Lewin Day | [
"Musical Hacks"
] | [
"3D printed parts",
"belt printer",
"guitar",
"infinite build volume printer"
] | A lot of first-time guitar builders focus on making the body and skip the neck, which has lots of tricky dimensions to get right to if you want a nicely playable instrument. However, [Jón Schone] of
Proper Printing
wanted to start with the hard part on his guitar building journey,
and set about 3D printing a guitar nec... | 11 | 8 | [
{
"comment_id": "6453069",
"author": "Paul",
"timestamp": "2022-04-01T15:35:49",
"content": "He probably should have used more infill to make it stiffer. Otherwise go all-in an try to print a neck-through-body guitar!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_i... | 1,760,372,740.308363 | ||
https://hackaday.com/2022/04/01/this-week-in-security-more-state-sponsored-activity-spring4shell/ | This Week In Security: More State-Sponsored Activity, Spring4Shell | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"Brian Krebs",
"cisco",
"Spring4Shell",
"This Week in Security"
] | [Editor’s note:
There is a second, fake iteration
of this column out today. This is obviously the real column.]
An
alert from CISA
, combined with an
unsealed pair of indictments
, sheds some new light on how Russian hackers pursue high-value targets. The key malware here is Triton, essentially a rootkit designed for t... | 4 | 3 | [
{
"comment_id": "6453070",
"author": "Joel B",
"timestamp": "2022-04-01T16:03:01",
"content": "That last note about Ubiquiti. It frustrates me when a company does stuff like that. I’ve been wanting to buy a decent security camera setup, and was eyeing up a Ubiquiti setup, but this has me wanting to ... | 1,760,372,740.350327 | ||
https://hackaday.com/2022/04/01/this-week-in-security-hackerman-twitters-best-and-signs-to-watch-out-for/ | This WeeΚ In Security: Hackerman, Twitter’s Best, And Signs To Watch Out For | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"Al Yankovic",
"hackerman"
] | [Editor’s note:
There is a second, fake iteration
of this column out today. This is obviously the real column.]
First off, there’s an amazing video tutorial from [Hackerman], embedded below the break. It’s a beginners guide to temporal displacement through GPU accelerated, cellular-connected partition board. The centra... | 6 | 5 | [
{
"comment_id": "6453081",
"author": "Dan",
"timestamp": "2022-04-01T16:59:23",
"content": "The K is slightly larger…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6453082",
"author": "Jonathan Bennett",
"timestamp": "2022-04-01T17:03:31",
... | 1,760,372,740.445327 | ||
https://hackaday.com/2022/04/01/mangopi-to-bring-a-sd-card-sized-linux-module/ | MangoPi To Bring A SD-Card-Sized Linux Module | Arya Voronova | [
"ARM",
"hardware"
] | [
"Allwinner",
"Allwinner h616",
"ARM Cortex A53",
"castellated",
"flexypins",
"hdmi",
"m-core",
"mangopi",
"single board computer",
"som",
"system-on-module"
] | Today’s Diminutive Device is a
small castellated System-On-Module
(Twitter link,
nitter proxy
) from [MangoPi] called M-Core, with a quad-core A53 CPU and 1 GB of RAM. As such, it’s very capable of running Linux, and even sports an HDMI output! Taking a closer look at the devboard picture, we can spot traces for three ... | 14 | 6 | [
{
"comment_id": "6453044",
"author": "BT",
"timestamp": "2022-04-01T12:00:32",
"content": "Those “FlexyPins” just look wrong when photographed from above, as if things that are supposed to be connected, aren’t!In an era of surface mount surely they are a pain. Surely it is possible to make a surface... | 1,760,372,740.401101 | ||
https://hackaday.com/2022/04/01/tracer-a-platform-for-all-things-movement-logging/ | Tracer, A Platform For All Things Movement Logging | Arya Voronova | [
"Wearable Hacks"
] | [
"ble",
"bluetooth LE",
"data logger",
"data logging",
"ESP32",
"hackaday.io",
"LSM6DSL",
"VL53L0X",
"wearable",
"Wearables"
] | [elektroThing] is
building a lightweight, battery-powered board
to track and measure movement of all kinds, called Tracer. Powered by an ESP32, it has a LSM6DSL 6DoF accelerometer & gyroscope sensor, and a VL53L0X Time-of-Flight sensor. A small Li-ion battery in a holder reportedly provides for 5 hours of streaming dat... | 2 | 2 | [
{
"comment_id": "6453032",
"author": "Erik Johansson",
"timestamp": "2022-04-01T10:22:41",
"content": "This is nice, I thought it was going to gps and all that likehttps://www.crowdsupply.com/unsurv-technologies/unsurv-offlineOne problem with all these hats on chips is that it’s hard to have them al... | 1,760,372,740.489812 | ||
https://hackaday.com/2022/03/31/watching-a-spacewalk-in-real-time/ | Watching A Spacewalk In Real Time | Al Williams | [
"News",
"Space"
] | [
"astrophotography",
"iss",
"spacewalk",
"telescope"
] | If you go to, say, a football game, you probably don’t get to see as much of the game as close as you do when you stay home and watch on TV. But there’s something about being there that counts. That’s probably how [Sebastian Voltmer] feels. While we’ve all seen video of astronauts and cosmonauts spacewalking, [Sebastia... | 6 | 2 | [
{
"comment_id": "6453042",
"author": "Truth",
"timestamp": "2022-04-01T11:26:10",
"content": "I’m still trying to wrap my head around pointing a telescope at something that is 400 km (~250 miles) away and being able to make out that level of detail. Stack 100 frames from a video with FireCapture or ... | 1,760,372,740.53231 | ||
https://hackaday.com/2022/03/31/texture-map-gcode-directly-in-blender-with-nozzleboss/ | Texture Map GCode Directly In Blender With NozzleBoss | Dave Rowntree | [
"3d Printer hacks"
] | [
"3d printing",
"blender",
"gcode",
"polar"
] | We’ve seen this
funky dual disk polar printer
already recently, but [Heinz Loepmeier] has been busy working on it, so here’s an update. The primary focus here is
nozzleboss, a blender plugin
which enables the surface textures of already sliced objects to be manipulated. The idea is to read in the gcode for the object, ... | 5 | 3 | [
{
"comment_id": "6452989",
"author": "rclark",
"timestamp": "2022-04-01T02:26:10",
"content": "Neat. Still a lot of activity in this area. I let my son do the printing. I just send him the stl files :) and somehow out pops a part.My son sent a picture of a 3D printed castle that is just a little... | 1,760,372,741.198404 | ||
https://hackaday.com/2022/03/31/modern-frugal-pcb-breathes-new-life-into-soviet-made-led-watch/ | Modern, Frugal PCB Breathes New Life Into Soviet-Made LED Watch | Robin Kearey | [
"Wearable Hacks"
] | [
"bubble display",
"LED watch",
"Soviet electronics"
] | The first electronic digital watches were admired for their pioneering technology, if not their everyday practicality, when they were introduced in the 1970s. Their power-hungry LED displays lit up only when you pressed a button, and even then the numbers shown were tiny. Their cases were large and heavy, and they drai... | 12 | 5 | [
{
"comment_id": "6452975",
"author": "Michael Black",
"timestamp": "2022-04-01T00:19:03",
"content": "We got LED watches because they were new, and “futuristic”. The main point was they were digital, rather than a watch with hands and a dial.As I recall, the first digital watches were LCD, very exp... | 1,760,372,741.150662 | ||
https://hackaday.com/2022/03/30/building-your-own-80386dx-isa-single-board-microcomputer/ | Building Your Own 80386DX ISA Single Board Microcomputer | Maya Posch | [
"classic hacks",
"computer hacks",
"Retrocomputing",
"Reverse Engineering"
] | [
"80386",
"custom SBC",
"isa",
"pc"
] | Having grown up with 386-level systems during the early 90s like so many of us, [Alexandru Groza] experienced an intense longing to experience the nostalgia of these computer systems from an interesting angle: by building his own
80386DX-based single board computer
. Courtesy of the 16-bit ISA form factor, the entire s... | 36 | 14 | [
{
"comment_id": "6452734",
"author": "[skaarj]",
"timestamp": "2022-03-31T05:58:10",
"content": "And – once again – all the Respect for the absolute Perfection goes to the Realms of Dracula, that magic land near the Black Sea where prehistoric digital Dinosaurs are rebuilt from scratch using tons of... | 1,760,372,740.976632 | ||
https://hackaday.com/2022/03/30/whats-that-accessusb-menu-in-my-lg-smarttv/ | What’s That AccessUSB Menu In My LG SmartTV? | Arya Voronova | [
"Reverse Engineering"
] | [
"accessusb",
"ida",
"ida pro",
"LG",
"smart tv",
"smart tv hack",
"smart tv hacks"
] | One boring evening, [XenRE] was
looking through service menus on their LG Smart TV
(Russian,
Google Translate
), such menus accessible through use of undocumented IR remote codes. In other words, a fairly regular evening. They noticed an “Access USB Status” entry and thought the “Access USB” part looked peculiar. A few... | 23 | 10 | [
{
"comment_id": "6452671",
"author": "Ken",
"timestamp": "2022-03-31T02:40:02",
"content": "“From the factory, your TV might have options accessible but locked or hidden, just like your laptop’s BIOS. Such options might be region lock toggles that limit content playback depending on volatile and sen... | 1,760,372,741.033539 | ||
https://hackaday.com/2022/03/30/solar-harvesting-is-better-with-big-capacitors/ | Hackaday Prize 2022: Solar Harvesting Is Better With Big Capacitors | Lewin Day | [
"green hacks",
"Misc Hacks"
] | [
"2022 Hackaday Prize",
"hackaday",
"LIC capacitor",
"solar",
"solar harvesting",
"solar power"
] | The sun is a great source of energy, delivering in the realm of 1000 watts per square meter on a nice clear day. [Jasper Sikken] has developed many projects that take advantage of this power over the years, and has just completed his latest solar harvesting module
for powering microcontroller projects.
The concept is s... | 26 | 10 | [
{
"comment_id": "6452651",
"author": "galah",
"timestamp": "2022-03-31T00:24:28",
"content": "Interesting gadget, but I’m confused about the sweet spot use case.The LIC here seems to hold a little over 1000J, depending on max voltage. My reading of the datasheet suggests max voltage drops as tempera... | 1,760,372,741.094183 | ||
https://hackaday.com/2022/03/30/freedmo-gets-rid-of-dymo-label-printer-drm/ | #FreeDMO Gets Rid Of DYMO Label Printer DRM | Arya Voronova | [
"Reverse Engineering",
"Tool Hacks"
] | [
"blue pill",
"bluepill",
"consumer",
"diy",
"drm",
"dymo",
"everything as a service",
"i2c",
"reverse engineering",
"ReverseEngineering",
"stm32",
"thermal printer"
] | DYMO 550 series printer marketing blurb says “The DYMO® LabelWriter® 550 Turbo label printer comes with unique Automatic Label Recognition™”, which, once translated from marketing-ese, means “this printer has DRM in its goshdarn thermal stickers”. Yes, DRM in the stickers that you typically buy in generic rolls. [FREEP... | 51 | 26 | [
{
"comment_id": "6452584",
"author": "Arthur Mezins",
"timestamp": "2022-03-30T20:10:16",
"content": "I’ve been using Brother PC label makers for over a decade and they’re good — not great, since I don’t know what that could be yet. Brother’s big problem is their funky editor that doesn’t auto-anyth... | 1,760,372,741.378455 |
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