url stringlengths 37 208 | title stringlengths 4 148 | author stringclasses 173
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https://hackaday.com/2022/11/28/nabu-pc-a-1984-z-80-computer-you-can-buy-today/ | NABU PC – A 1984 Z-80 Computer You Can Buy Today | Adam Fabio | [
"Retrocomputing"
] | [
"1984",
"auction",
"cable modem",
"NABU",
"nabu PC",
"news",
"retrocomputing"
] | Want to hack on brand new 8-bit 1980s hardware? Until recently you needed a time machine, or deep pockets to do this. All that has recently changed with the NABU PC. A retro machine that can be bought brand new for $59.99, (plus shipping) no time machine needed.
[Adrian] has one in his
Digital Basement
, and breaks it ... | 63 | 19 | [
{
"comment_id": "6539284",
"author": "nono",
"timestamp": "2022-11-28T19:52:48",
"content": "Fortunately the German version, the NADU is still available. But reserved to Germanophones.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6542716",
"author"... | 1,760,372,484.118156 | ||
https://hackaday.com/2022/11/28/app-detects-parkinsons-disease-and-covid-19-via-audio/ | App Detects Parkinsons Disease And COVID-19 Via Audio | Lewin Day | [
"Hackaday Columns",
"Medical Hacks",
"Science",
"Slider"
] | [
"diagnosis",
"Disease",
"illness",
"medical",
"medical hacks",
"medicine",
"Parkinson's disease"
] | One of the challenges of diagnosing diseases is identifying them early. At this stage, signs may be vague or confusing, or difficult to identify. Early diagnosis is often tied to the best possible treatment outcomes, so there’s plenty of incentives to improve methods in this way.
A new voice-based method of diagnosing ... | 20 | 10 | [
{
"comment_id": "6539205",
"author": "Nathan",
"timestamp": "2022-11-28T18:10:36",
"content": "Did they ever test against people who weren’t in the training set? Training a nural net on 32 samples is a super low sample size, so unless they showed that it could correctly identify people it wasn’t tra... | 1,760,372,483.318013 | ||
https://hackaday.com/2022/11/28/amateur-rocketry-hack-chat/ | Amateur Rocketry Hack Chat | Dan Maloney | [
"Hackaday Columns",
"Slider"
] | [
"Hack Chat"
] | Join us on Wednesday, November 30 at noon Pacific for the
Amateur Rocketry Hack Chat
with Kip Daugirdas!
This might be going out on a limb, but it seems like most of us probably fooled around with model rockets when we were younger. Those fantastic Estes kits were great fun to put together, and launching them was alway... | 12 | 6 | [
{
"comment_id": "6539304",
"author": "BT",
"timestamp": "2022-11-28T20:19:05",
"content": "It’ll be a blast.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6539450",
"author": "cj@seej.net",
"timestamp": "2022-11-28T23:51:26",
"conten... | 1,760,372,483.821444 | ||
https://hackaday.com/2022/11/28/silicon-sleuthing-finding-a-ancient-bugfix-on-the-8086/ | Silicon Sleuthing: Finding A Ancient Bugfix On The 8086 | Al Williams | [
"Retrocomputing"
] | [
"8086",
"chip decapping",
"ken shirriff",
"polysilicon",
"reverse engineering",
"silicon"
] | Few CPUs have had the long-lasting influence that the 8086 did. It is hard to believe that when your modern desktop computer boots, it probably thinks it is an 8086 from 1978 until some software gooses it into a more modern state. When [Ken] was examining an 8086 die, however, he noticed that
part of the die didn’t loo... | 31 | 13 | [
{
"comment_id": "6539147",
"author": "Michael Black",
"timestamp": "2022-11-28T16:43:57",
"content": "Don’t forget the missing opcodes in the original 6502. There were workarounds, but I’m not sure how many CPUs made it out.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"c... | 1,760,372,483.773852 | ||
https://hackaday.com/2022/11/28/ev-chargers-could-be-a-serious-target-for-hackers/ | EV Chargers Could Be A Serious Target For Hackers | Lewin Day | [
"car hacks",
"Current Events",
"Featured",
"Interest",
"Slider"
] | [
"car",
"car hacks",
"cars",
"electric vehicle",
"ev",
"EV charger",
"evse",
"technology"
] | Computers! They’re in everything these days. Everything from thermostats to fridges and even window blinds are now on the Internet, and that makes them all ripe for hacking.
Electric vehicle chargers are becoming a part of regular life. They too are connected devices, and thus pose a security risk if not designed and m... | 56 | 14 | [
{
"comment_id": "6539090",
"author": "Foldi-One",
"timestamp": "2022-11-28T15:21:20",
"content": "> With vehicle-to-grid chargers becoming a thing, too, there is also the potential for an oscillating attack method.That in particular has worried me, the other potential pitfalls are already common in ... | 1,760,372,483.51472 | ||
https://hackaday.com/2022/11/28/carving-terrain-maps-into-plywood-with-software-help/ | Carving Terrain Maps Into Plywood With Software Help | Bryan Cockfield | [
"cnc hacks"
] | [
"cnc",
"CNC machine",
"map",
"plywood",
"relief",
"topo",
"topographic map"
] | CNC machines are incredibly versatile tools. At a machine shop, they can machine all kinds of metal and plastic parts. Beyond that, they can engrave various materials including glass, and even create PCBs. [Steve] has a CNC machine of his own creation in his shop, and while he might be employing it for those common use... | 20 | 5 | [
{
"comment_id": "6538959",
"author": "Frankel",
"timestamp": "2022-11-28T12:26:25",
"content": "Then make it a mould and pour cake layers into the mould and bake it. Everyone at the geology department would love you! The picture at least had me hungry for some topographical goodness :)",
"parent... | 1,760,372,483.946331 | ||
https://hackaday.com/2022/11/28/bicycle-gets-turn-signals-and-brake-lights-for-added-safety/ | Bicycle Gets Turn Signals And Brake Lights For Added Safety | Bryan Cockfield | [
"Transportation Hacks"
] | [
"accelerometer",
"backpack",
"bicycle",
"bike",
"brake lights",
"Circuit Playground",
"led",
"safety",
"turn signal"
] | Traveling by bicycle can be a fun and exciting mode of transportation, and can also save a ton of money compared to driving a car. There are plenty of places around the world where a bicycle is the primary mode of transportation for a significant percentage of the population, but there are many more places that are des... | 27 | 8 | [
{
"comment_id": "6538840",
"author": "Frankel",
"timestamp": "2022-11-28T09:25:09",
"content": "Good idea but not visible from 270° like a stretched out arm as they teach you when you learn riding a bicycle in your youth.Next version should be a belt you wear: Right half and left half are 2 LED stri... | 1,760,372,484.013106 | ||
https://hackaday.com/2022/11/27/mikroleo-a-4-bit-retro-learning-platform/ | MikroLeo, A 4-Bit Retro Learning Platform | Dave Rowntree | [
"Retrocomputing"
] | [
"4-bit CPU",
"digital",
"discrete",
"KiCAD",
"retro",
"risc",
"ttl"
] | MikroLeo is a discrete TTL logic-based microcomputer intended for educational purposes created by [Edson Junior Acordi], an Electronics Professor at the Brazilian Federal Institute of Paraná, Brazil. The
4-bit CPU has a
Harvard RISC architecture built entirely from 74HCT series logic
mounted on a two-sided PCB using on... | 24 | 6 | [
{
"comment_id": "6538735",
"author": "Mike",
"timestamp": "2022-11-28T06:11:23",
"content": "Not sure what kind of ” educational purposes ” your going to learn from that! When its surrounded by modern micros to help get info to and from it. Just plain silly…",
"parent_id": null,
"depth": 1... | 1,760,372,483.704208 | ||
https://hackaday.com/2022/11/27/create-a-compiler-step-by-step/ | Create A Compiler Step-By-Step | Al Williams | [
"Software Development"
] | [
"c/c++",
"compiler",
"language",
"lisp",
"parser",
"programming",
"software development"
] | While JavaScript might not be the ideal language to write a production compiler, you might enjoy the
“Create Your Own Compiler” tutorial
that does an annotated walkthrough of “
The Super Tiny Compiler
” and teaches you the basics of writing a compiler from scratch.
The super tiny compiler itself is about 200 lines of c... | 19 | 8 | [
{
"comment_id": "6538642",
"author": "Jonathan Bennett",
"timestamp": "2022-11-28T03:21:19",
"content": "Reminds me of From Nand to Tetris, which includes a section on building a compiler. In assembly in that case, I think.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"com... | 1,760,372,483.880214 | ||
https://hackaday.com/2022/11/27/heres-a-plain-c-c-implementation-of-ai-speech-recognition-so-get-hackin/ | Here’s A Plain C/C++ Implementation Of AI Speech Recognition, So Get Hackin’ | Donald Papp | [
"Artificial Intelligence",
"Software Hacks"
] | [
"ai",
"c++",
"openai",
"speech recognition",
"transcription",
"whisper"
] | [Georgi Gerganov] recently shared a great resource for running high-quality
AI-driven speech recognition in a plain C/C++ implementation
on a variety of platforms. The automatic speech recognition (ASR) model is fully implemented using only two source files and requires no dependencies. As a result, the high-quality sp... | 19 | 12 | [
{
"comment_id": "6538574",
"author": "RW ver 0.0.3",
"timestamp": "2022-11-28T01:45:28",
"content": "Local ! Yisssss…. now to dig out my IBM Home Director lol",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6538627",
"author": "The Commenter Formerly ... | 1,760,372,483.400701 | ||
https://hackaday.com/2022/11/27/come-learn-about-new-attiny-generations/ | Come Learn About New ATtiny Generations | Arya Voronova | [
"ATtiny Hacks",
"how-to"
] | [
"Atmel",
"attiny",
"chip of the week",
"comparison",
"parts"
] | As the chip shortage hit, a lot of the familiar ATtiny chips have become unavailable and overpriced, and it mostly stayed the same since then. If you ever searched for “ATtiny” on your favourite electronics component retailer website, however, you’d notice that there’s quite a few ATtiny chips in stock most of the time... | 12 | 6 | [
{
"comment_id": "6538418",
"author": "RW ver 0.0.3",
"timestamp": "2022-11-27T21:36:13",
"content": "You will possibly find that a certain application needs a lot of sensors but millisecond read speed is not essential, therefore you can use one of the simple bus protocols such as I2C etc to daisycha... | 1,760,372,484.168905 | ||
https://hackaday.com/2022/11/27/ive-got-two-turntables-and-a-laser-engraver/ | I’ve Got Two Turntables And A Laser Engraver | Bryan Cockfield | [
"Musical Hacks"
] | [
"audio",
"engraver",
"laser",
"music",
"record",
"sound",
"vinyl",
"wood"
] | Digital media provides us with a lot of advantages. For something like recording and playing back music, digital copies don’t degrade, they can have arbitrarily high quality, and they can be played in a number of different ways including through digital streaming services. That being said, a number of people don’t feel... | 29 | 17 | [
{
"comment_id": "6538329",
"author": "Matteo",
"timestamp": "2022-11-27T18:49:24",
"content": "Mvvblog, best blog in the world!!!! 😂😂😂",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6538333",
"author": "Pujo",
"timestamp": "2022-11-27T18:57:51",
... | 1,760,372,484.316598 | ||
https://hackaday.com/2022/11/27/i-need-a-hackation/ | I Need A Hackation | Elliot Williams | [
"Rants"
] | [
"newsletter"
] | In recent times, the “staycation” became a popular alternative to forays far afield: you could take time off and enjoy your local surroundings without having to get stamps in your passport. But I don’t need to go to a museum or visit an amusement park, much less catch up on Stranger Things. I’ve got a project burning i... | 45 | 20 | [
{
"comment_id": "6538214",
"author": "Myself",
"timestamp": "2022-11-27T15:11:28",
"content": "Thank you for this term and concept, Elliot.I’m on the last day of an 8-day staycation, which has been mostly housework. I did some project-type stuff in the initial days, but quickly came to reckon with a... | 1,760,372,484.251023 | ||
https://hackaday.com/2022/11/27/a-practical-discrete-386/ | A Practical Discrete 386 | Jenny List | [
"Parts"
] | [
"audio",
"audio amplifier",
"lm386"
] | There are some chips that no matter how much the industry moves away from them still remain, exerting a hold decades after the ranges they once sat alongside have left the building. Such a chip is the 386, not the 80386 microprocessor you were expecting but the LM386, a small 8-pin DIP audio amplifier that’s as old as ... | 36 | 14 | [
{
"comment_id": "6538143",
"author": "ONV",
"timestamp": "2022-11-27T13:15:04",
"content": "Is this a clickbait title?A discrete LM386 is interesting but a discrete Intel 386 would be seriously cool :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6538152"... | 1,760,372,485.099947 | ||
https://hackaday.com/2022/11/27/portable-commodore-64-lives/ | Portable Commodore 64 Lives! | Al Williams | [
"Repair Hacks",
"Retrocomputing",
"Teardown"
] | [
"commodore",
"SX-64"
] | When you think of a luggable computer, you might think of the old Compaq or — if you are old enough — a Kaypro. But you don’t see as many Commodore SX-64 computers. [The 8-Bit Guy] has wanted one for a while and finally got one, but it wasn’t working. No problem!
Just fix it
!
The device actually looks sleek compared t... | 17 | 9 | [
{
"comment_id": "6538084",
"author": "nono",
"timestamp": "2022-11-27T10:28:36",
"content": "Yikes. He´s opening the case and pulling boards out without removing the power cord. And the beast contains a CRT…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "653... | 1,760,372,484.806294 | ||
https://hackaday.com/2022/11/26/human-vs-ai-drone-racing-at-the-university-of-zurich/ | Human Vs. AI Drone Racing At The University Of Zurich | Joseph Long | [
"drone hacks"
] | [
"artificial intelligence",
"computer vision",
"drones"
] | [Thomas Bitmatta] and two other champion drone pilots visited the
Robotics and Perception Group
at the University of Zurich. The human pilots accepting the challenge to race drones against Artificial Intelligence “pilots” from the UZH research group.
The human pilots took on two different types of AI challengers. The f... | 12 | 6 | [
{
"comment_id": "6538091",
"author": "Gravis",
"timestamp": "2022-11-27T10:42:11",
"content": "The “search and rescue” rationale is obviously total BS. They obviously wanted to beat the world’s best humans at yet another task but fell short of their goal. I’m not especially rooting for their success... | 1,760,372,484.752964 | ||
https://hackaday.com/2022/11/26/blackout-logger-keeps-track-of-power-outages/ | Blackout Logger Keeps Track Of Power Outages | Abe Connelly | [
"Raspberry Pi"
] | [
"data logger",
"DS3231",
"DS3231 RTC",
"eink",
"Raspberry Pi Pico",
"rtc"
] | [Dmytro Panin] lives in Kyiv, Ukraine where there have been rolling blackouts to stabilize the power grid. To help keep track of when the blackouts might happen, be they planned or emergency, and to get more information on how long the blackouts last, [Dmytro] has created a
blackout logger
.
The build consists of a Ras... | 7 | 6 | [
{
"comment_id": "6538034",
"author": "IIVQ",
"timestamp": "2022-11-27T08:34:30",
"content": "I lived in a student house where we had power cuts 3, 4 times a day, we had a list next to the switchpanel on which we wrote time/date and whether the big power users (laundry machine, dishwasher, oven and m... | 1,760,372,484.650242 | ||
https://hackaday.com/2022/11/26/turn-your-furniture-into-a-light-show-with-hyelicht/ | Turn Your Furniture Into A Light Show With Hyelicht | Tom Nardi | [
"home hacks",
"LED Hacks"
] | [
"addressable leds",
"ikea",
"philips hue",
"sk9822",
"touch screen"
] | There’s something about the regimented square shapes of the IKEA Kallax shelf that convinced [Eike Hein] it could benefit from some RGB LED lighting, and while he
could
have simply used a commercial solution, he decided instead to develop
Hyelicht: an incredibly well documented open source lighting system featuring mul... | 18 | 8 | [
{
"comment_id": "6537848",
"author": "CityZen",
"timestamp": "2022-11-27T00:29:59",
"content": "I also like how Technology Connections lit up his grid furniture: just mount a couple of big old LCD TVs behind them.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,372,484.709152 | ||
https://hackaday.com/2022/11/26/magic-mirror-on-a-low-cpu-budget/ | Magic Mirror – On A Low CPU Budget | Arya Voronova | [
"Raspberry Pi"
] | [
"Magic Mirror",
"midori",
"Raspbian"
] | For quite a few hackers out there, it’s still hard to find a decently powerful Raspberry Pi for a non-eye-watering price. [Rupin Chheda] wanted to build a magic mirror with a web-based frontend, and a modern enough Raspberry Pi would’ve worked just fine. Sadly, all he could get was single-1 GHz-core 512MB-RAM Zero W bo... | 21 | 12 | [
{
"comment_id": "6537782",
"author": "MrSVCD",
"timestamp": "2022-11-26T22:20:07",
"content": "These instructions are just what I need for a project of mine. Thank you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6537784",
"author": "Andy",
"timesta... | 1,760,372,484.977045 | ||
https://hackaday.com/2022/11/26/tesla-coil-makes-sodium-plasma/ | Tesla Coil Makes Sodium Plasma | Al Williams | [
"Science"
] | [
"plasma",
"tesla coil"
] | Looking for a neat trick to do with your Tesla coil? [The Action Lab] uses his coil to
make a metal plasma
— in particular, sodium. You can see the results in the video below.
To create a metal plasma, you need a metal vapor and sodium can create a vapor at a relatively low temperature, especially in a vacuum. The resu... | 11 | 6 | [
{
"comment_id": "6537678",
"author": "Charles Lamb",
"timestamp": "2022-11-26T18:45:40",
"content": "Making plasma from metal vapor is quite common. Sodium vapor and mercury vapor lamps are commonly used for street lighting. Fluorescent bulbs also rely on a mercury plasma.",
"parent_id": null,
... | 1,760,372,485.024118 | ||
https://hackaday.com/2022/11/26/leds-put-new-spin-on-a-sonic-the-hedgehog-costume/ | LEDs Put New Spin On A Sonic The Hedgehog Costume | Abe Connelly | [
"Arduino Hacks",
"LED Hacks"
] | [
"arduino nano",
"costume",
"halloween",
"sonic",
"ws2812b"
] | [Wentworthm] couldn’t say no to his son’s plea for a Sonic the Hedgehog costume for Halloween but also couldn’t resist sprucing it up with LEDs either. The end result is a surprisingly cool
light up Sonic the Hedgehog costume
.
After some experimentation, [Wentworthm] ordered two costumes and ended up mixing and matchi... | 1 | 1 | [
{
"comment_id": "6537583",
"author": "Kalle",
"timestamp": "2022-11-26T16:17:11",
"content": "Great example of hacking skills being beneficial to parenting – check out his YouTube channel for similar examples.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,485.187878 | ||
https://hackaday.com/2022/11/25/hackaday-podcast-194-fpv-contest-seven-words-lots-of-coffee-and-edible-drones/ | Hackaday Podcast 194: FPV Contest, Seven Words, Lots Of Coffee, And Edible Drones | Kristina Panos | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | This week, Editor-in-Chief Elliot Williams and Assignments Editor Kristina Panos fumbled through setting up Mumble on Kristina’s new-ish computer box before hitting record and talking turkey. First off, we’ve got a fresh new contest going on, and this time it’s all about the FPVs. Then we see if Kristina can stump Elli... | 4 | 4 | [
{
"comment_id": "6536895",
"author": "KC",
"timestamp": "2022-11-25T18:29:20",
"content": "He really was a genius. The entertainment industry lost something when he died.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6539117",
"author": "Ticktok",
"ti... | 1,760,372,485.146359 | ||
https://hackaday.com/2022/11/25/when-pi-supply-falls-short-thin-clients-stand-tall-for-home-automation-and-low-power-computing/ | When Pi Supply Falls Short, Thin Clients Stand Tall For Home Automation And Low Power Computing | Ryan Flowers | [
"computer hacks"
] | [
"debian",
"home automation",
"home-assistant",
"linux",
"low power pc",
"proxmox",
"raspberry pi",
"Raspbian",
"thin client",
"thin pc"
] | Do you need a cheap, small computer for a low power computing project? Historically, many of us would reach straight for a Raspberry Pi, even if we didn’t absolutely
need
the GPIO. But with prices elevated and supplies in the dumps, [Andreas Spiess] decided that it was time to look for
alternatives to now-expensive Pi’... | 80 | 24 | [
{
"comment_id": "6536787",
"author": "Bo-Erik Sandholm",
"timestamp": "2022-11-25T15:53:41",
"content": "I Hate YouTube only documentation of a hack.The minimum should be a webpage!I read much faster than the time to talk trough videos.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,485.315989 | ||
https://hackaday.com/2022/11/25/unlocking-a-locked-down-inverter/ | Unlocking A Locked-Down Inverter | Jenny List | [
"Reverse Engineering"
] | [
"inverter",
"power inverter",
"reverse engineering"
] | There was a time when a mains inverter was a heavy, expensive, and not particularly powerful item, but thanks to switch-mode technology we are now spoiled for choice. Most inverters still work with 12 V or 24 V supplies though, so when [Chris Jones] was looking for one to run from 36 V batteries, he found a limited sup... | 21 | 7 | [
{
"comment_id": "6536707",
"author": "metalman",
"timestamp": "2022-11-25T13:33:20",
"content": "a quick and dirty way to spoof many such black box circuits,is with a small 12v light bulb and a pot or justrandom resistors",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comme... | 1,760,372,485.370895 | ||
https://hackaday.com/2022/11/25/making-paper-strandbeester/ | Making Paper Strandbeesten | Anne Ogborn | [
"classic hacks"
] | [
"automata",
"papercaft"
] | We love the artistry of paper mechanisms. Simple tools and techniques creating humor, beauty, and amazement.
[Federico Tobon] from [Wolfcat Workshop] makes amazing automata, crosses between cut paper art, origami, and traditional carved wood automata. He’s put out a useful new video on making linkages in paper parts.... | 15 | 2 | [
{
"comment_id": "6536651",
"author": "Daniel",
"timestamp": "2022-11-25T11:23:34",
"content": "Nice try, but Strandbeest is Dutch, not German. Its plural is therefore Strandbeesten.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6536710",
"author": "... | 1,760,372,485.502742 | ||
https://hackaday.com/2022/11/24/squish-that-stack-with-rampart/ | Squish That Stack With Rampart | Dave Rowntree | [
"Software Hacks"
] | [
"database",
"HTTP",
"https",
"javascript",
"Redis",
"sql",
"web server",
"websockets"
] | [P B Richards] and [Aaron Flin] were bemoaning the resource hunger of modern JavaScript environments and planned to produce a system that was much stingier with memory and CPU, that would fit better on lower-end platforms. Think Nginx, NodeJS, and your flavour of database and how much resource that all needs to run pro... | 18 | 3 | [
{
"comment_id": "6536540",
"author": "tomás zerolo",
"timestamp": "2022-11-25T07:19:02",
"content": "Ten *MEGA*bytes?My first Linux box was a 386 (admittedly a DX40, thanks, AMD) with *four megabytes*. It ran X with a choice of window managers (TWM, of course, olwm, and my favourite GWM, by Nicolas ... | 1,760,372,485.656281 | ||
https://hackaday.com/2022/11/24/homebrew-led-bulbs-keep-your-circadian-rhythms-steady/ | Homebrew LED Bulbs Keep Your Circadian Rhythms Steady | Dan Maloney | [
"LED Hacks"
] | [
"Circadian",
"color temperature",
"led",
"phospor"
] | There was a time when LED light bulbs were a premium product that commanded a premium price, mainly because of limited supply and the usual marketing tricks. But now is not that time, since you can pick up an LED bulb for a buck or two at pretty much any store. So why in the world would you go to the effort
to make you... | 18 | 7 | [
{
"comment_id": "6536444",
"author": "PWalsh",
"timestamp": "2022-11-25T03:42:25",
"content": "Most human eyes have 3 cones, for R, G, and B, and the blue cone has a peak response around 437 nm. (Some people have a 4th cone sensitive in the UV.)The circadian rhythm is sensed by ganglia in the retina... | 1,760,372,485.607244 | ||
https://hackaday.com/2022/11/24/electroplated-3d-printed-sword-shiny/ | Electroplated 3D Printed Sword: Shiny! | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"electroplating"
] | We all want to 3D print metals, but the equipment to do that is still beyond most home workshops. However, [HEN3DRIK] takes
resin 3D-printed items and electroplates them
. Might not be as good as printing in metal, but it sure looks metallic. As you can see in the video below, the sword looks like it was crafted from h... | 13 | 5 | [
{
"comment_id": "6536390",
"author": "Andrew",
"timestamp": "2022-11-25T01:29:28",
"content": "Nice, but it’s no basis for a system of government.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6536414",
"author": "Al Williams",
"timestamp": ... | 1,760,372,485.553285 | ||
https://hackaday.com/2022/11/26/defeating-a-cryptoprocessor-with-laser-beams/ | Defeating A Cryptoprocessor With Laser Beams | Arya Voronova | [
"Security Hacks"
] | [
"ATECC508A",
"ATECC608A",
"cryptographic coprocessor",
"laser glitching"
] | Cryptographic coprocessors are nice, for the most part. These are small chips you connect over I2C or One-Wire, with a whole bunch of cryptographic features implemented. They can hash data, securely store an encryption key and do internal encryption/decryption with it, sign data or validate signatures, and generate dec... | 21 | 9 | [
{
"comment_id": "6537427",
"author": "Artenz",
"timestamp": "2022-11-26T12:06:15",
"content": "> all things that you might not want to do in firmware on your MCU, with the range of attacks you’d have to defend it againstIf the crypto processor is configured as an I2C peripheral, you’d still have to ... | 1,760,372,485.803422 | ||
https://hackaday.com/2022/11/26/interpreting-the-lua-interpreter/ | Reinterpreting The Lua Interpreter | Matthew Carlson | [
"Software Development"
] | [
"interpreter",
"lua",
"lua interpreter",
"luajit"
] | The idea behind Lua is a beautiful one. A simple and concise syntax offers almost all of the niceties of a first-class language. Moreover, a naive implementation of an interpreter with a giant switch case can be implemented in an afternoon. But assembly is your go-to to get decent performance in a JIT-style interpreter... | 26 | 7 | [
{
"comment_id": "6537419",
"author": "cumclave",
"timestamp": "2022-11-26T11:52:57",
"content": "Python is useful for code which does HTTP requests, for everything else C and makefiles do good enough job.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6537421"... | 1,760,372,485.865336 | ||
https://hackaday.com/2022/11/25/telnet-gets-stubborn-sony-camera-under-control/ | Telnet Gets Stubborn Sony Camera Under Control | Tom Nardi | [
"digital cameras hacks",
"Software Hacks"
] | [
"busybox",
"firmware hack",
"sony",
"telnet",
"telnetd"
] | According to [Venn Stone], technical producer over at
LinuxGameCast
, the Sony a5000 is still a solid option for those looking to shoot 1080p video despite being released back in 2014. But while the camera is lightweight and affordable, it does have some annoying quirks — namely an overlay on the HDMI output (as seen i... | 13 | 2 | [
{
"comment_id": "6537327",
"author": "Gregg Eshelman",
"timestamp": "2022-11-26T08:57:23",
"content": "The camera hacks I want to see are breaking the 30 minute video time limit on various compact point and shoot models like the Nikon Coolpix S6200, Olympus FE240, Canon’s ELPH series etc. There are... | 1,760,372,486.126793 | ||
https://hackaday.com/2022/11/25/honey-we-shrunk-the-nuclear-reactor/ | Honey, We Shrunk The Nuclear Reactor | Al Williams | [
"News",
"Science"
] | [
"heat pipe",
"microreactor",
"nuclear"
] | [Power Engineering] took a trip to the Westinghouse facility that provides maintenance for nuclear reactors. The research division there has a new microreactor called
eVinci
and — according to the company — it is a disruptor. Technically, the device is a heat pipe-based passive cooling design that can generate 5 MW of ... | 99 | 17 | [
{
"comment_id": "6537186",
"author": "TG",
"timestamp": "2022-11-26T03:28:56",
"content": "About time! The shape reminds me of some designs I’ve read about for deep space propulsion applications. Also compact reactors, similar fuel cladding and reaction control scheme. But you pipe liquid hydrogen t... | 1,760,372,485.989707 | ||
https://hackaday.com/2022/11/25/are-slabtops-the-future-of-computing/ | Are Slabtops The Future Of Computing? | Navarre Bartz | [
"computer hacks",
"Mac Hacks"
] | [
"airplay",
"headless",
"laptop",
"macbook",
"macbook air",
"slabtop",
"wireless video interface"
] | The most popular computer ever was the Commodore 64 with its computer-in-a-keyboard form factor. If you have a longing for a keyboard computer with more modern internals, one of the easiest solutions today is to
pull the screen off a laptop
.
[Umar Shakir] wanted to see what the fuss was about regarding
a recent Apple ... | 114 | 33 | [
{
"comment_id": "6537086",
"author": "dudefromthenorth",
"timestamp": "2022-11-26T00:03:57",
"content": "You mean, like a Commodore 64 / Atari ST ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6537110",
"author": "Erik Johnson",
"timestamp"... | 1,760,372,486.326678 | ||
https://hackaday.com/2022/11/25/custom-prusa-mk3-fan-duct-gives-camera-perfect-view/ | Custom Prusa MK3 Fan Duct Gives Camera Perfect View | Tom Nardi | [
"3d Printer hacks"
] | [
"borescope",
"nozzle camera",
"Octoprint",
"prusa",
"Prusa i3 Mk3"
] | A growing trend is to mount a borescope “inspection camera” near a 3D printer’s nozzle to provide a unique up-close view of the action. Some argue that this perspective can provide valuable insight if you’re trying to fine tune your machine, but whether or not there’s a practical application for these sort of nozzle ca... | 11 | 5 | [
{
"comment_id": "6537017",
"author": "cliff claven",
"timestamp": "2022-11-25T22:10:23",
"content": "I love it. Feels like playing TRON in the arcade",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6537991",
"author": "Rekhan4242",
"timestamp"... | 1,760,372,486.17928 | ||
https://hackaday.com/2022/11/25/circular-binary-clock-uses-the-power-to-tell-time/ | Circular Binary Clock Uses The Power To Tell Time | Kristina Panos | [
"clock hacks"
] | [
"attiny85",
"binary clock",
"DS1302",
"neopixel ring",
"RGB LED ring"
] | Should a clock be round? Depends on the style of clock, we suppose. After all, we wouldn’t expect to see a digital clock with a round readout just for fun. But a binary clock — that’s another animal altogether. Whereas [JohnThinger] made just a few weeks back a linear binary clock using an RGB LED strip and an ATtiny,
... | 5 | 3 | [
{
"comment_id": "6536906",
"author": "nono",
"timestamp": "2022-11-25T18:57:09",
"content": "A cubic binary clock would have more power…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6537078",
"author": "The Commenter Formerly Known As Ren",
... | 1,760,372,486.364884 | ||
https://hackaday.com/2022/11/23/tidy-pov-display-using-the-esp32/ | Tidy POV Display Using The ESP32 | Dave Rowntree | [
"LED Hacks"
] | [
"apa102",
"arduino",
"ESP32",
"JLCEDA",
"led",
"persistance of vision",
"POV"
] | Chinese Youtuber [corebb] presents the second version of his POV display. The earlier version used 5050-sized SMT addressable LEDs, which didn’t give great resolution, so he
rev’d the design to use a much higher number
(160 to be exact) of APA102 LEDs. These are 2mm on the side, making them a little more difficult to h... | 9 | 7 | [
{
"comment_id": "6535464",
"author": "YGDES",
"timestamp": "2022-11-24T00:21:10",
"content": "Oh the memories… I designed a POV mill 9 years ago, 2m diameter, what a beast… It used a RPi gen1.https://hackaday.io/project/6955-rosace",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,486.588082 | ||
https://hackaday.com/2022/11/23/how-to-build-your-own-analog-phone-network/ | How To Build Your Own Analog Phone Network | Robin Kearey | [
"Phone Hacks"
] | [
"dtmf",
"rs-485",
"slic",
"telephone exchange"
] | Analog phones may be nearly obsolete today, but having served humanity for well over a century they’re quite likely to pop up in drawers or attics now and then. If you’ve got a few of them lying around and you think it’d be cool to hook them up and make your own local telephone system, check out [Gadget Reboot]’s lates... | 18 | 8 | [
{
"comment_id": "6535395",
"author": "TG",
"timestamp": "2022-11-23T21:35:34",
"content": "Oh yeah I built one of those once with a pair of tin cans and fishing line",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6535402",
"author": "abjq",
"... | 1,760,372,486.462309 | ||
https://hackaday.com/2022/11/23/termi2-is-siri-like-its-1976/ | Termi2 Is Siri Like It’s 1976 | Kristina Panos | [
"Microcontrollers"
] | [
"acoustic coupler",
"serial terminal",
"typewriter"
] | What are your plans for the long weekend? If you don’t have time or don’t want to dive into a new project, why not dust off something left unfinished, or do as Hackaday alum [Cameron Coward] did recently and
upgrade an old project with a new brain
.
In this case, the project in question is a terminal typewriter — a Tex... | 9 | 6 | [
{
"comment_id": "6535392",
"author": "BozoTheGenious",
"timestamp": "2022-11-23T21:29:39",
"content": "Very cool project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6535393",
"author": "Johannes Burgel",
"timestamp": "2022-11-23T21:30:11",
"con... | 1,760,372,486.411416 | ||
https://hackaday.com/2022/11/23/books-you-should-read-why-buildings-fall-down/ | Books You Should Read: Why Buildings Fall Down | Dan Maloney | [
"Hackaday Columns",
"Slider"
] | [
"books you should read",
"collapse",
"failure",
"failure analysis",
"forensics",
"structural engineering"
] | People with long commutes usually come up with tricks to stay focused and alert and avoid the dangerous tendency to zone out during the drive. One trick I used to use was keeping mental track of the various construction projects I’d pass by on my way to work, noticing which piers on a new highway overpass were nearing ... | 35 | 19 | [
{
"comment_id": "6535334",
"author": "Lee Hart",
"timestamp": "2022-11-23T19:04:10",
"content": "Author Henry Petroski has also written some great books on engineering failures. See “To Engineer is Human”, and “The Evolution of Useful Things.”",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,372,486.537954 | ||
https://hackaday.com/2022/11/23/hardware-store-chemicals-transform-sheets-into-waterproof-tarps/ | Hardware Store Chemicals Transform Sheets Into Waterproof Tarps | Ryan Flowers | [
"chemistry hacks",
"Lifehacks"
] | [
"canvas",
"knots",
"naphtha",
"recycled",
"silicone",
"tarp",
"textile",
"textiles"
] | For hackers in the Northern Hemisphere, the seasons of wet and cold are upon us. Staying dry is every bit as important as staying warm, so what better than a hack or two to keep us warm and dry! All you’ll need is a bed sheet, some rope, and a run to the local hardware store, and a bit of knowledge. [NightHawkInLight] ... | 35 | 12 | [
{
"comment_id": "6535292",
"author": "Ostracus",
"timestamp": "2022-11-23T17:02:26",
"content": "” But how can you use it like a tarp, when there are no eyelets?”Grommet tool kit. Not expensive either.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6535317",... | 1,760,372,486.781652 | ||
https://hackaday.com/2022/11/23/dont-believe-everything-you-read-the-great-electric-toaster-hoax/ | Don’t Believe Everything You Read: The Great Electric Toaster Hoax | Al Williams | [
"Current Events",
"Featured",
"Rants",
"Slider"
] | [
"hoax",
"Rant"
] | We’ve all looked up things on Wikipedia and, generally, it is usually correct information. However, the fact that anyone can edit it leads to abuse and makes it somewhat unreliable. Case in point? The BBC’s [Marco Silva] has the story of
the great online toaster hoax
which erroneously identified the inventor of the toa... | 65 | 26 | [
{
"comment_id": "6535255",
"author": "J.Cook",
"timestamp": "2022-11-23T15:56:12",
"content": "Yep. Just have a look at Tumblr’s latest (and probably greatest to date) mass collaboration (or maybe hallucination?) on the 1973 film Goncharov.(no, it’s not a real film, but there’s been enough work put... | 1,760,372,486.972401 | ||
https://hackaday.com/2022/11/23/the-13-5-million-core-computer/ | The 13.5 Million Core Computer | Al Williams | [
"computer hacks"
] | [
"cluster",
"hpc",
"supercomputer"
] | Having a dual- or quad-core CPU is not very exotic these days and CPUs with 12 or even 16 cores aren’t that rare. The
Andromeda
from Cerebras is a supercomputer with 13.5 million cores. The company claims it is one of the largest AI supercomputers ever built (but not the largest) and can perform 120 Petaflops of “dense... | 55 | 20 | [
{
"comment_id": "6535208",
"author": "Gravis",
"timestamp": "2022-11-23T12:58:44",
"content": "“40 GB of static RAM”My brain melted just thinking about this much SRAM.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6535213",
"author": "BT",
"timestamp"... | 1,760,372,486.868173 | ||
https://hackaday.com/2022/11/24/racing-cars-on-a-pcb/ | Racing Cars On A PCB | Bryan Cockfield | [
"Science"
] | [
"magnetic field",
"magnetism",
"pcb",
"Printed Circuit Board",
"race track",
"slot car"
] | Carl Friedrich Gauss was, to put it mildly, a polymath responsible for a large percentage of the things we take for granted in the modern world. As a physicist and mathematician he pioneered several fields of study including within the field of magnetism. But since he died decades before the first car was built, it’s u... | 14 | 10 | [
{
"comment_id": "6536251",
"author": "Steven Smethurst funvill@mastodon.social (@funvill)",
"timestamp": "2022-11-24T21:09:33",
"content": "That is amazing, I could see a bunch of tracks that could be connected together using this method to make a large race course.",
"parent_id": null,
"dep... | 1,760,372,487.166642 | ||
https://hackaday.com/2022/11/24/meat-space-minesweeper-game-hits-the-mark/ | Meat-Space Minesweeper Game Hits The Mark | Dave Walker | [
"3d Printer hacks",
"Games"
] | [
"3d printer",
"classic",
"game",
"minesweeper",
"stl",
"travel"
] | Hackers of a certain age will remember that before the Internet was available to distract us from our work, we had to find our own fun. Luckily, Windows was there to come to our aid, in the shape of “Minesweeper” – a classic of the age that involved figuring out/occasionally just guessing where a selection of mines had... | 9 | 3 | [
{
"comment_id": "6536207",
"author": "Jonathan Bennett",
"timestamp": "2022-11-24T19:59:55",
"content": "I can’t imagine how it would work, but 3d-printed travel Doom sounds awesome.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6536254",
"author": ... | 1,760,372,487.212398 | ||
https://hackaday.com/2022/11/24/weasley-clock-for-magically-low-cost/ | Weasley Clock For Magically Low Cost | Bryan Cockfield | [
"Arduino Hacks"
] | [
"3d printer",
"arduino",
"clock",
"cloud",
"gears",
"harry potter",
"hivemqcloud",
"mqtt",
"owntracks",
"weasley"
] | For those unfamiliar with the details of the expansive work of fiction of Harry Potter, it did introduce a few ideas that have really stuck in the collective conscious. Besides containing one of the few instances of time travel done properly and introducing a fairly comprehensive magical physics system, the one thing s... | 12 | 6 | [
{
"comment_id": "6536043",
"author": "wibble",
"timestamp": "2022-11-24T15:27:16",
"content": "Gawd, the safety stuff is a bit overblown. He really doesn’t need to be overly concerned about leaving it running unattended, the probability of it turning into a fireball is minuscule. To anyone thinking ... | 1,760,372,487.017231 | ||
https://hackaday.com/2022/11/24/its-macos-on-an-unmodified-wii/ | It’s MacOS. On An Unmodified Wii! | Jenny List | [
"computer hacks",
"Nintendo Wii Hacks"
] | [
"macOS",
"wii"
] | We’re used to the so-called “Hackintoshes”, non-Apple hardware running MacOS. One we featured recently was even built into the case of a Nintendo Wii. But [Dandu] has gone one better than that, by
running MacOS on an unmodified Wii, original Nintendo hardware
(French,
Google Translate link
).
How has this seemingly imp... | 16 | 7 | [
{
"comment_id": "6536010",
"author": "Piecutter",
"timestamp": "2022-11-24T14:44:07",
"content": "Nonintendo WhyMac?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6536019",
"author": "ono",
"timestamp": "2022-11-24T14:52:51",
"conten... | 1,760,372,487.361832 | ||
https://hackaday.com/2022/11/24/pie-stop-for-emergency-dns-needs/ | Pie Stop For Emergency DNS Needs | Bryan Cockfield | [
"Network Hacks",
"News",
"Raspberry Pi"
] | [
"ad",
"advertisement",
"blocking",
"button",
"dns",
"emergency stop",
"ESP-01",
"ESP8266",
"estop",
"filter",
"network",
"Pi-hole"
] | The war on Internet ads rages on, as the arms race between ad blockers and ad creators continues to escalate. To make a modern Internet experience even remotely palatable, plenty of people are turning to DNS-level filters to stop the ads from coming into the network at all. This solution isn’t without its collateral da... | 37 | 11 | [
{
"comment_id": "6535763",
"author": "R",
"timestamp": "2022-11-24T09:23:21",
"content": "Or just host a web page on that same Pi that anyone can access from their device , and do this in software (click button graphic to run pihole stop script)",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,372,487.437201 | ||
https://hackaday.com/2022/11/23/trackball-split-keyboard-will-roll-into-your-heart/ | Trackball Split Keyboard Will Roll Into Your Heart | Kristina Panos | [
"Peripherals Hacks"
] | [
"keyboard",
"monoblock split",
"split keyboard",
"trackball"
] | One of the nicest problems to have with a split keyboard, even a monoblock split, is deciding what to put in the middle. Most people go for either the mouse, or else their beverage of choice. Some might sub in a bowl of snacks later on in the day. Personally, we most often use the space for holding notes.
[AlSaMoMo] we... | 12 | 5 | [
{
"comment_id": "6535669",
"author": "Raniz",
"timestamp": "2022-11-24T06:43:14",
"content": "Neat. I just got my ZSA Moonlander and are starting to test out alternate layouts. I have no idea how you’d get by with only 30 keys, but I’m intrigued. Will need to work on my own layout to use layers bett... | 1,760,372,487.311276 | ||
https://hackaday.com/2022/11/23/sick-beats-using-music-and-smartphone-to-attack-a-biosafety-room/ | Sick Beats: Using Music And Smartphone To Attack A Biosafety Room | Dan Maloney | [
"Security Hacks"
] | [
"attack",
"biohazard",
"biosecurity",
"bisafety",
"BSL",
"differential pressure",
"negative pressure",
"spoof"
] | Imagine a movie featuring a scene set in a top-secret bioweapons research lab. The villain, clad in a bunny suit, strides into the inner sanctum of the facility — one of the biosafety rooms where only the most infectious and deadliest microorganisms are handled. Tension mounts as he pulls out his phone; surely he’ll us... | 15 | 7 | [
{
"comment_id": "6535539",
"author": "Ostracus",
"timestamp": "2022-11-24T03:03:51",
"content": "” You can imagine the rest.”Dumped into the outside air.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6535951",
"author": "CMH62",
"timestamp":... | 1,760,372,487.264131 | ||
https://hackaday.com/2022/11/23/the-fastest-fourier-transform-in-the-west/ | The Fastest Fourier Transform In The West | Dave Walker | [
"Arduino Hacks",
"Software Hacks"
] | [
"fast fourier transform",
"fft",
"IEEE 754",
"julia",
"optimisation",
"signal processing",
"trigonometry"
] | An interesting aspect of time-varying waveforms is that by using a trick called a Fourier Transform (FT), they can be represented as the sum of their underlying frequencies. This mathematical insight is extremely helpful when processing signals digitally, and allows a simpler way to implement frequency-dependent filtra... | 22 | 9 | [
{
"comment_id": "6535151",
"author": "Koren",
"timestamp": "2022-11-23T09:20:38",
"content": "I’m not sure I understand how Fast Fourier Transform (as in Cooley-Tuckey algorithm) is an approximation or a “real” Fourier transform of a discrete signal… The algorithm gives an exact solution of a discre... | 1,760,372,487.498845 | ||
https://hackaday.com/2022/11/22/local-iot-cat-treat-dispenser/ | Local IOT Cat Treat Dispenser | Abe Connelly | [
"3d Printer hacks",
"internet hacks",
"Raspberry Pi"
] | [
"28BYJ-48",
"3d printed",
"cat food",
"IoT",
"raspberry pi",
"treat dispenser",
"uln2003"
] | [MostElectronics], like many of us, loves cats, and so wanted to make an internet connected treat dispenser for their most beloved. The result is
an ingenious 3D printed mechanism
connected to a Raspberry Pi that’s able to serve treats through a locally run web application.
From the software side, the Raspberry Pi uses... | 9 | 6 | [
{
"comment_id": "6535162",
"author": "Jeboa",
"timestamp": "2022-11-23T10:04:29",
"content": "Would be great to see this ported to work using a Pi Pico W.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6535230",
"author": "Matias",
"timestamp... | 1,760,372,489.17682 | ||
https://hackaday.com/2022/11/22/fuel-cell-catalyst-less-is-more/ | Fuel Cell Catalyst: Less Is More | Al Williams | [
"Science"
] | [
"fuel cell",
"hydrogen"
] | A fuel cell is almost like a battery that has replenishable fuel. Instead of charging a battery with an electric current, you recharge a fuel cell with something like hydrogen or you simply consume it from a tank much as an internal combustion engine consumes gasoline. However, fuel cells usually use a catalyst — it is... | 14 | 2 | [
{
"comment_id": "6535089",
"author": "Dave",
"timestamp": "2022-11-23T03:42:11",
"content": "I did fuel cells for 10 years. I taught a class on fuel cells for 3 years. I still love fuel cells",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6535136",
"... | 1,760,372,489.079596 | ||
https://hackaday.com/2022/11/22/home-built-cpu-runs-with-home-built-toolchain/ | Home-Built CPU Runs With Home-Built Toolchain | Dave Rowntree | [
"computer hacks"
] | [
"cpu",
"custom",
"FPU",
"isa",
"risc"
] | A few years ago [Takaya Saeki] and fellow students of the University of Tokyo, were given a very limited instruction during their ‘CPU exercise’ class, along the lines of:
Take this ray-tracing program written in OCaml and run it on your CPU implemented on an FPGA
Splitting into groups to cover the CPU, FPU, simulator ... | 14 | 6 | [
{
"comment_id": "6535031",
"author": "MinorHavoc",
"timestamp": "2022-11-23T00:08:40",
"content": "And here I was proud that the CPU I created for my processor design class could execute one instruction in simulation…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,372,489.49013 | ||
https://hackaday.com/2022/11/22/new-metric-prefixes-get-bigger-and-smaller/ | New Metric Prefixes Get Bigger And Smaller | Al Williams | [
"News",
"Science"
] | [
"metrology",
"si units",
"units"
] | It always fascinates us that every single thing that is made had to be designed by someone. Even something as simple as a bag and box that holds cereal. Someone had to work out the dimensions, the materials, the printing on it, and assign it a UPC code. Those people aren’t always engineers, but someone has to think it ... | 72 | 17 | [
{
"comment_id": "6534943",
"author": "Doug",
"timestamp": "2022-11-22T21:09:24",
"content": "Who the hell is using prefixes after your exponent gets to like 10^+/-18? Other than “science enthusiasts”, of course.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": ... | 1,760,372,489.777826 | ||
https://hackaday.com/2022/11/22/minimalist-6502-system-uses-a-cpu-and-not-much-else/ | Minimalist 6502 System Uses A CPU And Not Much Else | Robin Kearey | [
"computer hacks",
"Retrocomputing"
] | [
"65c02",
"breadboard",
"minimalism",
"single board computer"
] | A central processing unit, or CPU, is the heart of any computer system. But it’s definitely not the only part: you also need RAM, ROM and at least some peripherals to turn it into a complete system that can actually do something useful. Modern microcontrollers typically have some or all of these functions integrated in... | 19 | 11 | [
{
"comment_id": "6534920",
"author": "Eric",
"timestamp": "2022-11-22T20:26:13",
"content": "https://content.thetechnickel.com/misc/fc6502/fc6502.png",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534927",
"author": "c0pperdragon",
"timestam... | 1,760,372,489.287978 | ||
https://hackaday.com/2022/11/22/a-hacker-walks-into-a-trade-show-electronica-2022/ | A Hacker Walks Into A Trade Show: Electronica 2022 | Elliot Williams | [
"cons",
"Hackaday Columns",
"Parts",
"Slider"
] | [
"electronica 2022",
"parts",
"trade fair"
] | Last week, the world’s largest electronics trade fair took place in Munich, so I had to attend.
Electronica
is so big that it happens only once every two years and fills up 14 airplane hangars. As the fairly generic name suggests, it covers anything and everything having to do with electronics. From the producers of yo... | 24 | 7 | [
{
"comment_id": "6534898",
"author": "Nick",
"timestamp": "2022-11-22T19:00:49",
"content": "“Hasselhoff at the Beach” was a beer can pyramid. Those Germans sure do love David Hasselhoff. RIP, Norm.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6535017",
... | 1,760,372,489.376894 | ||
https://hackaday.com/2022/11/22/start-your-engines-the-fpv-contest-begins-now/ | Start Your Engines: The FPV Contest Begins Now! | Elliot Williams | [
"contests",
"Hackaday Columns",
"News",
"Slider"
] | [
"contest",
"drone",
"FPV",
"quad",
"remote",
"rover",
"tank",
"video"
] | There are places that you can go in person, but for everything else, there’s FPV. Whether you’re flying race quads, diving the depths in a yellow submarine, or simply roving the surface of the land,
we want to see your builds
. If it’s remote controlled, and you feel like you’re in the pilot’s seat, it’s FPV.
That’s yo... | 15 | 7 | [
{
"comment_id": "6534861",
"author": "Kip",
"timestamp": "2022-11-22T17:26:24",
"content": "2 Possible typo’s here: One you say “whet your appetite” I think you mean “wet” and did you mean the contest ends in 2023 or in 2033 like you wrote?",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,489.233403 | ||
https://hackaday.com/2022/11/22/an-open-source-modular-flexure-construction-set/ | An Open Source Modular Flexure Construction Set | Dave Rowntree | [
"Parts"
] | [
"3d printing",
"flexure",
"GrabCAD",
"mechanism"
] | Flexures are one of those innocent-looking mechanisms that one finds inside practically any kind of consumer device. Providing constrained movements with small displacements, complete with controlled tension, they can be rather tricky to design. GrabCAD designer [Vyacheslav Popov] hails from Ukraine, and due to the cur... | 14 | 4 | [
{
"comment_id": "6534840",
"author": "FEW",
"timestamp": "2022-11-22T16:51:30",
"content": "This looks very interesting. It’s unfortunate that it’s not better documented. I will download the files and play with it. This looks like a very useful set of building blocks for developing more complex moti... | 1,760,372,489.127716 | ||
https://hackaday.com/2022/11/22/spoofing-lidar-could-blind-autonomous-vehicles-to-obstacles/ | Spoofing LIDAR Could Blind Autonomous Vehicles To Obstacles | Lewin Day | [
"car hacks",
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"autonomous driving",
"autonomous vehicles",
"car hacks",
"cars",
"lidar",
"lidar spoofing"
] | Humans manage to drive in an acceptable fashion using just two eyes and two ears to sense the world around them. Autonomous vehicles are kitted out with sensor packages altogether more complex. They typically rely on radar, lidar, ultrasonic sensors, or cameras all working in concert to detect the road conditions ahead... | 74 | 18 | [
{
"comment_id": "6534805",
"author": "TW",
"timestamp": "2022-11-22T15:33:59",
"content": "XKCD addressed something like this a while ago.https://xkcd.com/1958/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534874",
"author": "anotherArticle",
... | 1,760,372,489.675649 | ||
https://hackaday.com/2022/11/22/if-your-drone-flies-eat-it/ | If Your Drone Flies, Eat It! | Jenny List | [
"drone hacks"
] | [
"drone",
"edible drone",
"edible technology"
] | Over the years we’ve featured countless drone projects here at Hackaday, fixed wing, rotary wing, multi-rotor, and more. Among them all we think there may be a type that we’ve never seen, but that is about to change as it’s the first time we’ve brought you
an edible drone
.
Why might you need an edible drone, you ask? ... | 29 | 15 | [
{
"comment_id": "6534736",
"author": "Menno",
"timestamp": "2022-11-22T12:28:59",
"content": "So the wings will disintegrate with the slightest hint of precipitation and using a standard drone with sustenance in a weatherproof wrapping would of course be way to simple.Is it April fools yet?",
"p... | 1,760,372,489.4398 | ||
https://hackaday.com/2022/11/22/anime-inspired-holographic-virtual-assistant/ | Anime Inspired Holographic Virtual Assistant | Abe Connelly | [
"Raspberry Pi"
] | [
"digital assistant",
"hologram",
"home-assistant",
"virtual assistant",
"voice control"
] | [Jessp] has created a very cute and endearing
DIY virtual assistant called Maria
. The build combines a 3D printed housing that uses a modern take on the “Pepper’s Ghost” illusion to render a virtual, three-dimensional anime inspired assistant that can take commands to get information about the weather, play music or s... | 28 | 10 | [
{
"comment_id": "6534701",
"author": "ono",
"timestamp": "2022-11-22T09:42:35",
"content": "This is not holographic and “Pepper´s Cone” effect does not exist.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534715",
"author": "Joseph Eoff",
"... | 1,760,372,489.83742 | ||
https://hackaday.com/2022/11/21/a-game-boy-advance-downgraded/ | A Game Boy Advance – Downgraded! | Jenny List | [
"Nintendo Game Boy Hacks",
"Nintendo Hacks"
] | [
"game boy advance",
"gba",
"lcd",
"rp2040"
] | We feature a large number of game console mods here, because enhancing the experience of using a classic machine often involves some really clever work. But here’s one that’s a bit different, instead of upgrading his Game Boy Advance, [Wenting Zhang]
has downgraded it from a colour screen to a monochrome LCD
. Take a l... | 6 | 4 | [
{
"comment_id": "6534665",
"author": "Teragon",
"timestamp": "2022-11-22T06:59:40",
"content": "I’d like to see someone do one of these or even an old Lynx in OLED. Would be something to behold I imagine",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6534669",... | 1,760,372,490.034744 | ||
https://hackaday.com/2022/11/21/better-air-quality-sensing-with-co2/ | Better Air Quality Sensing With CO2 | Bryan Cockfield | [
"green hacks"
] | [
"air",
"air quality",
"arduino",
"carbon dioxide",
"co2",
"eink",
"sensor",
"VOC"
] | Measuring air quality, as anyone who has tried to tackle this problem can attest, is not as straightforward as it might seem. Even once the nebulous term “quality” is defined, most sensors use something as a proxy for overall air health. One common method is to use volatile organic compounds (VOCs) as this proxy but as... | 19 | 9 | [
{
"comment_id": "6534652",
"author": "wzhd",
"timestamp": "2022-11-22T05:53:54",
"content": "After getting an CO2 meter I found that a VOC sensor wouldn’t be necessary. The CO2 I breathe out alone is enough to make air quality in the bedroom poor.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,372,490.088376 | ||
https://hackaday.com/2022/11/21/portable-esp32-rgb-lasershow-has-all-the-trimmings/ | Portable ESP32 RGB Lasershow Has All The Trimmings | Jenny List | [
"Laser Hacks"
] | [
"ESP32",
"galvanometer",
"laser"
] | Perhaps there was a time when fancy laser effects were beyond those without the largest of bank accounts, but today they can be created surprisingly easily. [Corebb] shows us how with a neat unit using an off the shelf RGB laser module and mirror module,
driven by a ESP32 with software designed to make it as easy as po... | 47 | 11 | [
{
"comment_id": "6534586",
"author": "brufy",
"timestamp": "2022-11-22T00:17:11",
"content": "it is not dangerous for the eyes his invention? he should not wear protective glasses?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534680",
"author": "T... | 1,760,372,490.167487 | ||
https://hackaday.com/2022/11/21/reverse-engineering-the-seven-words-and-more-you-cant-say-on-tv/ | Reverse Engineering “The Seven Words (and More) You Can’t Say On TV” | Dan Maloney | [
"Reverse Engineering"
] | [
"censoring",
"closed captioning",
"EEPPROM",
"nsfw",
"ntsc",
"reverse engineering",
"television"
] | For as visionary as he was, [George Carlin] vastly underestimated the situation with his classic “Seven Words You Can’t Say on TV” bit. At least judging by
[Ben Eater]’s reverse engineering of the “TVGuardian Foul Language Filter” device
, it seems like the actual number is at least 20 times that.
To begin at the begin... | 24 | 11 | [
{
"comment_id": "6534529",
"author": "scott_tx",
"timestamp": "2022-11-21T21:44:06",
"content": "I found the spreadsheet work more impressive than the arduino programming. I didnt even know you could do stuff like that in a spreadsheet.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,490.222664 | ||
https://hackaday.com/2022/11/21/making-svd-files-searchable-with-svd2db/ | Making SVD Files Searchable With Svd2db | Maya Posch | [
"Microcontrollers",
"Software Development"
] | [
"bare metal",
"SVD file"
] | Everyone who writes bare-metal code for microcontrollers probably know the joys of looking up the details of specific registers in the reference manual, including their absolute address. Although the search function of the PDF viewer can be helpful, it’d be rather nice if there was a way to search only the registers, a... | 11 | 6 | [
{
"comment_id": "6534479",
"author": "Mykrolian",
"timestamp": "2022-11-21T19:47:56",
"content": "As rare as it is, there are still occasions to bypass the development SW and tinker with the registers. For example, I had a micropower application that varied in it’s power consumption. It was due to... | 1,760,372,490.784502 | ||
https://hackaday.com/2022/11/21/how-to-repair-the-death-of-schematics/ | How To Repair? The Death Of Schematics | Al Williams | [
"Featured",
"History",
"Rants",
"Slider"
] | [
"photofact",
"repair",
"riders"
] | There was a time when, if you were handy with a soldering iron, you could pretty easily open up a radio or TV repair business. You might not get rich, but you could make a good living. And if you had enough business savvy to do sales too, you could do well. These days there aren’t many repair shops and it isn’t any won... | 97 | 31 | [
{
"comment_id": "6534439",
"author": "Michael Black",
"timestamp": "2022-11-21T18:18:40",
"content": "But you wouldn’t buy that $399 tv set today. It would be far cheaper. In 1982, you’d think in terms of how much of your salary it cost.The “good old days” was full of inferior technology, and very... | 1,760,372,490.377884 | ||
https://hackaday.com/2022/11/21/making-a-do-it-yourself-sand-battery/ | Making A Do-It-Yourself Sand Battery | Maya Posch | [
"green hacks"
] | [
"Robert Murray-Smith",
"thermal battery",
"thermal storage"
] | Storing energy can be done in many ways, with the chemical storage method of a battery being one of the most common. Another option is a thermal battery, which basically means making something hot, and later extracting that heat again. In
this video
by [Robert Murray-Smith] the basic concept of a thermal battery that u... | 96 | 20 | [
{
"comment_id": "6534393",
"author": "Jan",
"timestamp": "2022-11-21T16:43:28",
"content": "The specific heat capacity is 4.2 kJ/(kg·K) which is actually pretty good.I doubt sand has anywhere near that.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534394"... | 1,760,372,490.739988 | ||
https://hackaday.com/2022/11/21/fdas-approval-of-cell-culture-chicken-the-rise-of-fresh-meat-without-the-animal/ | FDA’s Approval Of Cell Culture Chicken: The Rise Of Fresh Meat Without The Animal? | Maya Posch | [
"Featured",
"News",
"Original Art",
"Science",
"Slider"
] | [
"cell culture",
"cultured meat"
] | On November 14th of this year, the FDA
cleared the path
for
Upside Foods
to sell its cell-culture-based chicken products within the US. This is the first product of its kind to be cleared for commercial sale within the Americas, with only Singapore having previously
cleared
a similar product for sale, back in December ... | 105 | 31 | [
{
"comment_id": "6534345",
"author": "justsayin",
"timestamp": "2022-11-21T15:06:39",
"content": "Idk, on the face of it this looks like a great idea.. but not gonna lie, I have to admit this creeps me out more than a little",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,372,490.519709 | ||
https://hackaday.com/2022/11/21/move-aside-planar-im-slicing-my-cone-way/ | Move Aside Planar, I’m Slicing My Cone Way | Matthew Carlson | [
"3d Printer hacks"
] | [
"3d model slicing",
"conical",
"slicing",
"slicing algorithm"
] | Fleetwood Mac puns aside, very little has changed about how we “slice” models for printers in the last 30 years. However, [Stefan Hermann] of CNC Kitchen
has a demo that tries to change all that by slicing conically
.
For the uninitiated in the dark arts of printing in the third dimension, the canonical definition of n... | 12 | 6 | [
{
"comment_id": "6534320",
"author": "ono",
"timestamp": "2022-11-21T13:29:42",
"content": "Another amazing amazing slicing innovation. There have been a lot in the last years.Now combine all these modern slicing possibilities into a finite analysis, probably AI-assisted engine that would :– impleme... | 1,760,372,490.888974 | ||
https://hackaday.com/2022/11/20/homebrew-espresso-maker-modding-with-gaggiuino/ | Homebrew Espresso Maker Modding With Gaggiuino | Abe Connelly | [
"cooking hacks"
] | [
"advanced coffee machine",
"arduino nano",
"espresso",
"espresso machine",
"PID coffee machine",
"stm32"
] | For those that don’t know, Gaggia is a company that produces a line of affordable “entry-level” espresso coffee makers that offer good quality consumer espresso machines at reasonable prices. The entry level machines don’t offer fine grained control over temperature, pressure and steam which is
where the Gaggiuino proj... | 10 | 4 | [
{
"comment_id": "6534099",
"author": "Experienced Experimenter",
"timestamp": "2022-11-20T22:15:44",
"content": "I thought Turkish coffee was entry level espresso, or is it better described as cowboy espresso?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,372,490.837054 | ||
https://hackaday.com/2022/11/20/see-the-forbidden-cigarette-machine-in-action/ | See The Forbidden Cigarette Machine In Action | Elliot Williams | [
"Tool Hacks"
] | [
"3d printing",
"mechanics",
"mechanism",
"packing"
] | [Fraens] has been designing a number of fantastic 3D printed machines and making great videos that demonstrate how they work. The last installment was an automatic cigarette stuffing machine, and it’s got a number of pretty complex motions, and somehow manages to get the job done.
While [Fraens] usually uploads STL fil... | 66 | 26 | [
{
"comment_id": "6533802",
"author": "𐂀 𐂅",
"timestamp": "2022-11-20T09:11:07",
"content": "There is an interesting band called “Cigarette Rolling Machine”, their latest album “Hysteria” is pretty good, if you like the style.https://www.youtube.com/watch?v=n4yCOZcMEmwHowever I think they are talki... | 1,760,372,491.079142 | ||
https://hackaday.com/2022/11/19/colorful-split-keyboard-uses-vga-connections/ | Colorful Split Keyboard Uses VGA Connections | Kristina Panos | [
"Peripherals Hacks"
] | [
"hand wired",
"keyboard",
"split keyboard",
"vga"
] | When it comes to building a split keyboard, you have a lot of options when it comes to the cable. Many will use a standard 3.5 mm TRRS cable, and others might use something more esoteric like RJ-45 to run between the halves. This only works if you’re using two controllers; if you only want one controller, you have to p... | 14 | 7 | [
{
"comment_id": "6533869",
"author": "Evaprototype",
"timestamp": "2022-11-20T12:17:52",
"content": "Why would rj-45 be esoteric compared to vga db-15? Only the name would throw most but the connector Is easily tested and available and easy to make or purchased. My Walgreens sells cat5 Ethernet cabl... | 1,760,372,490.935904 | ||
https://hackaday.com/2022/11/19/two-esoteric-programming-languages-one-interpreter/ | Two Esoteric Programming Languages, One Interpreter | Elliot Williams | [
"computer hacks",
"Software Hacks"
] | [
"BrainF*ck",
"esoteric language",
"interpreter",
"programming"
] | Many of you will have heard of the esoteric programming language
Brainf**k_
. It’s an example language that’s nearly impossible to use because it’s
too simple
. It’s basically a Turing computer in code – you can essentially put characters into an array, read them out, increment, decrement, and branch. The rest is up to... | 9 | 6 | [
{
"comment_id": "6533794",
"author": "Patrick",
"timestamp": "2022-11-20T08:43:07",
"content": "The language is properly called Brainfuck, as always for those who are allowed in their jurisdiction to use any word without strange obfuscations.Hackaday has written about Brainfuck, and tags exist in ob... | 1,760,372,490.980747 | ||
https://hackaday.com/2022/11/19/open-source-passive-radar-taken-down-for-regulatory-reasons/ | Open-Source Passive Radar Taken Down For Regulatory Reasons | Arya Voronova | [
"Radio Hacks"
] | [
"itar",
"KrakenRF",
"krakensdr",
"passive radar",
"RTL-SDR",
"RTLSDR"
] | Open-source technology brings a world that laws and regulations are not quite prepared for. As a result, every now and then, open projects need to work around governmental regulations. In today’s news,
KrakenRF team has stumbled into an arms-trafficing legal roadblock
for their KrakenSDR-based passive radar code, and i... | 92 | 15 | [
{
"comment_id": "6533652",
"author": "James Finch (@jafinch78)",
"timestamp": "2022-11-20T00:12:43",
"content": "Of course! Why not? Especially if used to detect something some imbeciles want us to believe doesn’t exist that’s illegal (whether device(s) and/or act(s) using device(s)) and/or not to... | 1,760,372,491.209008 | ||
https://hackaday.com/2022/11/19/esp32-led-eyes-help-keep-toddler-in-bed/ | ESP32 LED Eyes Help Keep Toddler In Bed | Tom Nardi | [
"clock hacks"
] | [
"Child",
"clock",
"ntp",
"toddler"
] | We’ve seen a lot of custom clocks here at Hackaday, many of which have pushed the traditional definition of the timepiece to its absolute limit. But for all their wild designs, most of them do have something in common: they assume you can actually read a clock and understand the concept of time. But what if you’re deve... | 14 | 7 | [
{
"comment_id": "6533626",
"author": "Andrew",
"timestamp": "2022-11-19T21:26:10",
"content": "Could have used a 555.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6533632",
"author": "scott_tx",
"timestamp": "2022-11-19T22:12:49",
"... | 1,760,372,491.258696 | ||
https://hackaday.com/2022/11/19/the-barkhausen-effect-hearing-magnets-being-born/ | The Barkhausen Effect: Hearing Magnets Being Born | Dave Rowntree | [
"hardware",
"Science"
] | [
"Barkhausen",
"ferromagnetic",
"magnet",
"noise"
] | The Barkhausen effect — named after German Physicist Heinrich Barkhausen — is the term given to the noise output produced by a ferromagnetic material due to the change in size and orientation of its discrete magnetic domains under the influence of an external magnetic field. The domains are small: smaller than the micr... | 21 | 8 | [
{
"comment_id": "6533599",
"author": "The Commenter Formerly Known As Ren",
"timestamp": "2022-11-19T19:36:50",
"content": "Back in Electronics school, instead of writing in my notes what was the Barkhausen effect,I drew a doghouse and a barking dog.IOW, I didn’t learn that part of the lesson.",
... | 1,760,372,491.406154 | ||
https://hackaday.com/2022/11/21/driving-e-paper-displays-with-memory-limited-mcus/ | Driving E-Paper Displays With Memory Limited MCUs | Tom Nardi | [
"Microcontrollers"
] | [
"8 bit",
"e-ink",
"e-paper",
"Electronic shelf label"
] | It’s easy to become jaded by modern microcontrollers: for just a few bucks you can get a MCU that’s powerful enough to give a desktop computer from the early 90s a run for its money while packing in contemporary technology like WiFi and Bluetooth. For many projects we don’t even have to consider optimizing our code, be... | 20 | 8 | [
{
"comment_id": "6534267",
"author": "OG",
"timestamp": "2022-11-21T09:54:07",
"content": "“Salvaged” shelf labels?You mean stolen?I’ve yet to see one of these in the wild, BTW.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534285",
"author": "klx"... | 1,760,372,491.46546 | ||
https://hackaday.com/2022/11/20/a-handy-oshw-usb-cable-tester-for-your-toolkit/ | A Handy OSHW USB Cable Tester For Your Toolkit | Tom Nardi | [
"Tool Hacks"
] | [
"coin cell",
"test equipment",
"USB C",
"USB tester"
] | There’s no shame in admitting you’ve been burned by a cheapo USB cable — ever since some bean counter realized there was a few cents to be saved by producing “power only” USB cables, no hardware hacker has been safe.
But with this simple tester from [Álvaro Prieto]
in your arsenal, you’ll never be fooled again.
It’s ab... | 25 | 10 | [
{
"comment_id": "6534224",
"author": "bob",
"timestamp": "2022-11-21T06:49:49",
"content": "I made one of these for testing trailer tailboards and for testing the trailer sockets, but i used toggle switches to detect shorts and cross wiring.",
"parent_id": null,
"depth": 1,
"replies": []... | 1,760,372,491.343751 | ||
https://hackaday.com/2022/11/20/new-part-day-exotic-filament-for-rf-dielectric-structures/ | New Part Day: Exotic Filament For RF Dielectric Structures | Jenny List | [
"3d Printer hacks"
] | [
"3d printer filament",
"dielectric",
"microave"
] | The world of microwave RF design appears to the uninitiated to be full of unimaginably exotic devices, as engineers harness the laws of physics to tame radio signals to their will. Among the weapons in their arsenal are materials of known dielectric properties, from which can be made structures with the desired effects... | 10 | 6 | [
{
"comment_id": "6534265",
"author": "jwrm22",
"timestamp": "2022-11-21T09:49:50",
"content": "While I don’t have a direct use for this filament. It’s very useful to know it exists. It can greatly reduce cost for the RF prototypes I’ve build in the past. Even better, removing unknowns and reduce the... | 1,760,372,491.690226 | ||
https://hackaday.com/2022/11/20/hackaday-links-november-20-2022/ | Hackaday Links: November 20, 2022 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"Artemis",
"broadcast",
"hackaday links",
"jwst",
"krakensdr",
"MIRI",
"moon",
"nasa",
"orion",
"passive radar",
"radar",
"sdr",
"sls",
"telemetry"
] | Lots of space news this week, with the big story being that
Artemis I finally blasted off for its trip to the Moon
. It was a spectacular night launch, with the SLS sending the crew-rated but vacant — well,
mostly vacant
— Orion spacecraft on a week-ish long trip to the Moon, before spending a couple of weeks testing o... | 16 | 7 | [
{
"comment_id": "6534148",
"author": "Ostracus",
"timestamp": "2022-11-21T00:22:08",
"content": "Interesting he called it a supertower. Lived right next to an antenna farm. Great reception for what was on it. Drowned out some of the surrounding signals.",
"parent_id": null,
"depth": 1,
"... | 1,760,372,491.919075 | ||
https://hackaday.com/2022/11/20/this-standalone-camera-gets-the-picture-through-with-sstv/ | This Standalone Camera Gets The Picture Through With SSTV | Dan Maloney | [
"Radio Hacks"
] | [
"baofeng",
"ESP camera",
"ESP-32",
"sdr",
"Slow-scan television",
"SSTV"
] | These days, sending a picture to someone else is as simple as pulling out your smartphone and sending it by email or text message. It’s so simple a child can do it, but that simple user experience masks a huge amount of complexity, from the compression algorithms in the phones to the huge amount of distributed infrastr... | 12 | 6 | [
{
"comment_id": "6534080",
"author": "Antiemes",
"timestamp": "2022-11-20T21:15:14",
"content": "I did something simar with a DRA818 module. (The PCB part is still unfinished.)https://github.com/Antiemes/SSTV/tree/master/code/esp-idf",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,372,491.644327 | ||
https://hackaday.com/2022/11/20/tinyllama-is-a-486-in-your-pocket/ | TinyLlama Is A 486 In Your Pocket | Navarre Bartz | [
"computer hacks",
"Games",
"hardware",
"Raspberry Pi",
"Retrocomputing"
] | [
"486",
"86Duino",
"Crystal Audio",
"does it run doom",
"doom",
"dos",
"midi",
"MT-32",
"raspberry pi",
"Raspberry Pi Zero 2",
"TinyLlama",
"vga"
] | We love retrocomputing and tiny computers here at Hackaday, so it’s always nice to see projects that combine the two.
[Eivind]’s TinyLlama
lets you play DOS games on a board that fits in your hand.
Using the 486 SOM from the 86Duino, the TinyLlama adds an integrated Crystal Semiconductor audio chip for AdLib and SoundB... | 39 | 10 | [
{
"comment_id": "6534023",
"author": "Michael Black",
"timestamp": "2022-11-20T18:55:48",
"content": "But you won’t be able to get Linux for it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6534065",
"author": "paulvdh",
"timestamp": "2022-... | 1,760,372,491.863118 | ||
https://hackaday.com/2022/11/20/cheap-display-fix-brings-thermal-camera-back-to-life/ | Cheap Display Fix Brings Thermal Camera Back To Life | Robin Kearey | [
"Repair Hacks"
] | [
"display replacement",
"flir",
"right to repair"
] | When it comes to repairability of electronic devices, much depends on how helpful the original manufacturer is. Some make repairs very easy by publishing detailed service manuals and selling spare parts. Others keep everything under wraps to protect their intellectual property, turning even a supposedly simple fix into... | 5 | 3 | [
{
"comment_id": "6533934",
"author": "Stanson",
"timestamp": "2022-11-20T15:23:32",
"content": "> he quickly found that FLIR was firmly in the “all our designs are top secret” camp and wouldn’t even tell him what kind of display they had used.I still remember times when electronic device schematic w... | 1,760,372,492.067293 | ||
https://hackaday.com/2022/11/19/brainstorming/ | Brainstorming | Elliot Williams | [
"3d Printer hacks",
"Hackaday Columns"
] | [
"3d printing",
"brainstorming",
"computer vision",
"newsletter",
"rants"
] | One of the best things about hanging out with other hackers is the freewheeling brainstorming sessions that tend to occur. Case in point: I was at the Electronica trade fair and ended up hanging out with [Stephen Hawes] and [Lucian Chapar], two of the folks behind the
LumenPnP open-source pick and place machine
that we... | 5 | 3 | [
{
"comment_id": "6533589",
"author": "j.beyer",
"timestamp": "2022-11-19T19:06:18",
"content": "start by using a flir camera integrated in. it would allow material studies with data from the cooling print thermal density and load etc. this is brainstorming right, scrumming, punching the clown",
... | 1,760,372,492.112144 | ||
https://hackaday.com/2022/11/19/at-a-loss-for-words-try-a-teleprompter/ | At A Loss For Words? Try A Teleprompter | Al Williams | [
"Video Hacks"
] | [
"teleprompter"
] | With everyone doing videos these days, you might want to up your narration game with a teleprompter. [Modern Hobbyist]
can help
. Since he does videos — like the one about the teleprompter below — we assume he built it out of his own need for the device. Actually, this is his second teleprompter. The first one was larg... | 24 | 7 | [
{
"comment_id": "6533518",
"author": "macsimski",
"timestamp": "2022-11-19T12:25:05",
"content": "Most prompters sit on a rail, carrying the camera and prompter in such a way the setup is balanced.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6533612",
... | 1,760,372,491.980801 | ||
https://hackaday.com/2022/11/19/simple-mod-lets-quadruped-robot-stand-and-walk/ | Simple Mod Lets Quadruped Robot Stand And Walk | Donald Papp | [
"Robots Hacks"
] | [
"locomotion",
"mini cheetah",
"robot",
"standing",
"walker"
] | When it comes to locomotion, robots don’t typically do more than one thing at a time. Walkers stick to walking, and rollers stick to rolling. However, this
simple method of enabling a cheetah-style quadruped to stand and even walk a little
is pretty clever.
With just a couple of rigid struts attached to the shins of th... | 9 | 7 | [
{
"comment_id": "6533522",
"author": "Danjovic",
"timestamp": "2022-11-19T13:05:05",
"content": "Clever, but creepy!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6533557",
"author": "paulvdh",
"timestamp": "2022-11-19T16:05:22",
"content": "At th... | 1,760,372,492.028081 | ||
https://hackaday.com/2022/11/18/real-minecraft-furnace-generates-electricity-from-coal/ | RealMinecraftFurnace Generates Electricity From Coal | Lewin Day | [
"Games"
] | [
"furnace",
"minecraft",
"thermoelectric generator"
] | There’s a furnace in
Minecraft
that is used to power all kinds of things in the game. [Joel] of
Joel Creates
decided he wanted to build a real-world replica,
and did exactly that.
The furnace consists of a 30 cm aluminium cube, inside which the coal is burned. Thermoelectric generators (TEGs) are then placed on the sid... | 22 | 8 | [
{
"comment_id": "6533492",
"author": "Frankel",
"timestamp": "2022-11-19T07:29:54",
"content": "Coal-fired power in Australia (50%, 2011)Coal power in the United States (30.4%, 2016)Not saying we can save the world, but keep going. Personally I’d rather have green Thorium molten salt reactors, but t... | 1,760,372,492.17321 | ||
https://hackaday.com/2022/11/18/diy-robotic-platform-aims-to-solve-walking-in-vr/ | DIY Robotic Platform Aims To Solve Walking In VR | Donald Papp | [
"Robots Hacks",
"Virtual Reality"
] | [
"locomotion",
"robotic platform",
"vr",
"walking in VR"
] | [Mark Dufour]’s
TACO VR project
is a sort of robotic platform that mimics an omnidirectional treadmill, and aims to provide a compact and easily transportable way to allow a user to walk naturally in VR.
Unenthusiastic about most solutions for allowing a user to walk in VR, [Mark] took a completely different approach. ... | 32 | 14 | [
{
"comment_id": "6533469",
"author": "Christian",
"timestamp": "2022-11-19T03:56:23",
"content": "Scary to me, in a Kathy “Misery” Bates kinda way. Ankle twisting “never walk again” machine.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6533470",
"a... | 1,760,372,492.312189 | ||
https://hackaday.com/2022/11/18/scramblepad-teardown-reveals-complicated-expensive-innards/ | Scramblepad Teardown Reveals Complicated, Expensive Innards | Donald Papp | [
"Reverse Engineering",
"Security Hacks"
] | [
"7 segment",
"door access",
"number pad",
"reverse engineering",
"rfid",
"Scramblepad",
"security"
] | What’s a Scramblepad? It’s a type of number pad in which the numbers aren’t in fixed locations, and can only be seen from a narrow viewing angle. Every time the pad is activated, the buttons have different numbers. That way, a constant numerical code isn’t telegraphed by either button wear, or finger positions when pun... | 28 | 12 | [
{
"comment_id": "6533452",
"author": "The Womble",
"timestamp": "2022-11-19T02:10:07",
"content": "Been doing work in a building for a few weeks that has one of these mounted in the elevator, it’s long-disused from the looks of it, but the nasa spaghetti logo font and menacing robocop corporate desi... | 1,760,372,492.242039 | ||
https://hackaday.com/2022/11/18/augmented-reality-workbench-helps-you-to-debug-your-boards/ | Augmented Reality Workbench Helps You To Debug Your Boards | Robin Kearey | [
"Repair Hacks",
"Tech Hacks",
"Tool Hacks"
] | [
"augmented reality",
"debugging",
"lab bench",
"motion tracking"
] | No matter how advanced your design skills, the chances are you’ll need to spend some time chasing bugs in your boards after they come back from the assembly house. Testing and debugging a PCB typically involves a lot of cross-checking between the board, the layout and the schematic, which quickly becomes tiresome even ... | 17 | 13 | [
{
"comment_id": "6533409",
"author": "Olivier",
"timestamp": "2022-11-18T22:06:27",
"content": "Really cool idea, hope to see a version that requires less supporting hardware in the future",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6533422",
"aut... | 1,760,372,492.463614 | ||
https://hackaday.com/2022/11/18/faceless-clock-makes-your-think-twice-about-how-it-works/ | Faceless Clock Makes You Think Twice About How It Works | Dan Maloney | [
"clock hacks"
] | [
"analog",
"clock",
"magnet",
"neodymium",
"worm gear"
] | We love projects that make you do a double-take when you first see them. It’s always fun to think you see one thing, but then slowly realize everything is not quite what you expected. And
this faceless analog clock
is very much one of those projects.
When we first saw [Shinsaku Hiura]’s “Hollow Clock 4,” we assumed the... | 23 | 9 | [
{
"comment_id": "6533366",
"author": "Foldi-One",
"timestamp": "2022-11-18T19:11:08",
"content": "That is so subtle its extremely charming.Looks great, a fun and neat idea that doesn’t feel the need to attach neon signs pointing out its ‘impossible coolness’, Magic.",
"parent_id": null,
"dep... | 1,760,372,492.521516 | ||
https://hackaday.com/2022/11/18/hackaday-podcast-193-found-computers-internet-over-whatsapp-two-factor-c64-shifting-cars-and-self-shooting-fighter-planes/ | Hackaday Podcast 193: Found Computers, Internet Over WhatsApp, Two-Factor C64, Shifting Cars, And Self-Shooting Fighter Planes | Dan Maloney | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | This week, Editor-in-Chief Elliot Williams and Staff Writer Dan Maloney review the literature on a hack-packed week of action. We’ll find a Linux machine inside just about anything, including curb-side TVs and surprisingly secure EV chargers. No Internet? No problem — just tunnel IP through WhatsApp! We’ll see that 3D ... | 4 | 2 | [
{
"comment_id": "6533410",
"author": "Foley Matthews",
"timestamp": "2022-11-18T22:12:59",
"content": "left wondering what the incorrect response to the mystery sound was. was it something un-podcast-able? couldn’t you use a euphemism?",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,492.865511 | ||
https://hackaday.com/2022/11/18/tiny-rc-truck-and-trailer-motors-around-tabletop/ | Tiny RC Truck And Trailer Motors Around Tabletop | Lewin Day | [
"Toy Hacks"
] | [
"attiny",
"bluetooth",
"R/C car",
"radio control",
"rc"
] | Most RC cars replicate real-world race cars or fantastical off-road buggies for outdoor escapades. [diorama111] is an expert at building tiny desk-roaming models, though,
and built this exquisite micro semi-truck and trailer.
Based on a 1/150 scale truck and trailer model, the build starts with the tractor unit. It’s d... | 17 | 13 | [
{
"comment_id": "6533340",
"author": "Lee Hart",
"timestamp": "2022-11-18T16:44:58",
"content": "Fantastic workmanship!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6533345",
"author": "TG",
"timestamp": "2022-11-18T17:12:11",
"content": "That is... | 1,760,372,492.717212 | ||
https://hackaday.com/2022/11/18/this-week-in-security-mastadon-fake-software-company-and-shufflecake/ | This Week In Security: Mastodon, Fake Software Company, And ShuffleCake | Jonathan Bennett | [
"computer hacks",
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"BIG-IP",
"mastodon",
"pixel",
"This Week in Security"
] | Due to Twitter’s new policy of testing new features on production, the interest in Mastodon as a potential replacement has skyrocketed. And what’s not to love? You can host it yourself, it’s part of the Fediverse, and you can even run one of the experimental forks for more features. But there’s also the danger of putti... | 15 | 7 | [
{
"comment_id": "6533320",
"author": "Frankel",
"timestamp": "2022-11-18T15:15:05",
"content": "Mastodon like the extinct animal, not mast*a*don..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6533323",
"author": "Dan",
"timestamp": "2022-11... | 1,760,372,493.1002 | ||
https://hackaday.com/2022/11/18/supercon-balloon-continues-its-world-tour/ | Supercon Balloon W6MRR-26 Continues Its World Tour | Joseph Long | [
"Radio Hacks"
] | [
"2022 Hackaday Supercon",
"amateur radio",
"high altitude balloon",
"microcontrollers"
] | [Martin Rothfield] and other amateur radio operators from
San Francisco High Altitude Ballooning
(SF-HAB) treated conference attendees to the
2022 Hackaday Supercon
to the launch of two High Altitude Balloons (HABs). On the morning of November 6th, the two balloons were launched from a park across the street from Suppl... | 16 | 11 | [
{
"comment_id": "6533286",
"author": "Hans Summers",
"timestamp": "2022-11-18T12:30:05",
"content": "Readers may be interested to know that my U4B high altitude balloon tracker is now available athttp://qrp-labs.com/u4b– weighing 1.8 grams and costing $56.09 it is both the lightest and cheapest trac... | 1,760,372,492.769256 | ||
https://hackaday.com/2022/11/18/pop-your-way-to-a-fresh-roast-coffee/ | Pop Your Way To A Fresh Roast Coffee | Jenny List | [
"cooking hacks"
] | [
"coffee roaster",
"hot air",
"popcorn machine"
] | The preparation and consumption of coffee has become something of an art from in our community, with many people going to extravagant lengths to achieve the perfect cup. [Eric Sorensen] was keen to roast his own beans, but given the price of a dedicated roaster, instead
made his own using a hot air popcorn popper
.
The... | 17 | 9 | [
{
"comment_id": "6533295",
"author": "John Gadbois",
"timestamp": "2022-11-18T13:16:41",
"content": "The type of SSR is only rated to 5A as used. To get the listed current rating (if above 5A) it needs to be attached to an appropriately sized heat sink. This mistake is very common in DIY projects.... | 1,760,372,492.664458 | ||
https://hackaday.com/2022/11/17/building-a-lego-pneumatic-engine/ | Building A LEGO Pneumatic Engine | Lewin Day | [
"Toy Hacks"
] | [
"air engine",
"lego",
"pneumatic engine"
] | Pneumatic engines aren’t something we use every day, but they’re compelling things to see working in practice. [Nico71] built an eye-catching example out of LEGO Technic,
and it’s remarkably fully-featured.
The build relies on a single pneumatic cylinder driving a flywheel. Flow to the cylinder is determined by camshaf... | 6 | 6 | [
{
"comment_id": "6533266",
"author": "JanW",
"timestamp": "2022-11-18T09:15:05",
"content": "This video is no nonsense, on point stuff. Nice!I especially like that he shows the single mechanisms and how they work in detail.Amazing stuff!",
"parent_id": null,
"depth": 1,
"replies": []
}... | 1,760,372,492.816332 | ||
https://hackaday.com/2022/11/17/logic-via-dna/ | Logic Via DNA | Al Williams | [
"Science"
] | [
"dna",
"naughts and crosses",
"tic-tac-toe"
] | We often say you can make logic gates out of nearly anything. [Steve Mould] would agree as he just finished playing naughts and crosses (tic tac toe if you are an American) with
a tray full of DNA
. You can see the resulting game and how it works in the video below.
The use of DNA isn’t really significant as it simply ... | 8 | 5 | [
{
"comment_id": "6533224",
"author": "Gravis",
"timestamp": "2022-11-18T04:57:48",
"content": "The most important part when doing computing is reliability. Last I heard, a breakthrough made it so that errors only occurred once in ~3000 DNA logic gates. Good but still not good enough for computing.",... | 1,760,372,493.043975 | ||
https://hackaday.com/2022/11/17/supercon-badge-reads-a-punch-card/ | Supercon Badge Reads A “Punch” Card | Dave Rowntree | [
"cons",
"Retrocomputing"
] | [
"2022 Hackaday Supercon",
"badge",
"charlieplexing",
"optical",
"pixelblaze",
"punchcard"
] | This year’s Hackaday Supercon, the first since 2019 thanks to the pandemic, was a very similar affair to those of the past. Almost every hardware-orientated hacker event has its own custom electronic badge, and Supercon was no different. This year’s badge is a simulation platform for a hypothetical 4-bit CPU created by... | 10 | 5 | [
{
"comment_id": "6533292",
"author": "Winston",
"timestamp": "2022-11-18T13:02:06",
"content": "From a previous column about the badge:https://hackaday.com/2022/10/12/the-2022-supercon-badge-is-a-handheld-trip-through-computing-history/“Now, the best way to get one is to buy yourself a ticket and co... | 1,760,372,493.002239 |
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