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https://hackaday.com/2021/10/27/vintage-arcade-used-negative-voltage-to-turn-volume-up-to-11/ | Vintage Arcade Used Negative Voltage To Turn Volume Up To 11 | Ryan Flowers | [
"classic hacks",
"Games",
"Reviews"
] | [
"arcade",
"arcade cabinet",
"negative voltage"
] | When [Nicole Express] got her hands on the logic board for the 1986 SNK arcade game
Athena
, she ran into a rather thorny problem: The board expected to be fed negative five volts! [Nicole]’s analysis of the problem and a brilliant solution are outlined
in her well written blog post
.
[Nicole]’s first task was to find ... | 50 | 18 | [
{
"comment_id": "6394316",
"author": "JD",
"timestamp": "2021-10-27T08:20:45",
"content": "A mistake here: “ATX PSU’s stopped providing negative voltage after the ISA slot disappeared from PC’s”ATX PSUs have always, and to this day, provide negative 12V (used to this day for things like RS232 driver... | 1,760,372,907.700819 | ||
https://hackaday.com/2021/10/25/modified-car-alternator-powers-speedy-diy-e-bike/ | Modified Car Alternator Powers Speedy DIY E-Bike | Tom Nardi | [
"Transportation Hacks"
] | [
"alternator",
"bike",
"e-bike",
"esc"
] | Your garden variety automotive alternator is ripe for repurposing as is, but with a little modification, it can actually be used as a surprisingly powerful brushless motor. Looking to demonstrate the capabilities of one of these rebuilt alternators,
[DIY King] bolted one to the back of a old bicycle
and got some impres... | 40 | 11 | [
{
"comment_id": "6393823",
"author": "Greg A",
"timestamp": "2021-10-25T20:22:18",
"content": "i wonder what makes it wobble at speed. 43mph happens to be the fastest i’ve ever gone on a bike and my bike gets real stable & easy to handle anything over 10mph. but i’ve seen little kids taking downhi... | 1,760,372,907.091471 | ||
https://hackaday.com/2021/10/25/mastering-memory-for-microcontrollers-elecia-white-to-deliver-remoticon-keynote/ | Mastering Memory For Microcontrollers: Elecia White To Deliver Remoticon Keynote | Mike Szczys | [
"cons",
"Featured"
] | [
"2021 Hackaday Remoticon",
"elecia white",
"embedded engineering",
"keynote",
"memory",
"memory map",
"ram"
] | I’m excited to share the news that Elecia White will deliver a keynote talk at the Hackaday Remoticon in just a few short weeks.
Get your free ticket now
!
Elecia is well-known throughout the embedded engineering world. She literally wrote the book on it — or at least
a
book on it, one I have had in my bedside table fo... | 1 | 1 | [
{
"comment_id": "6393864",
"author": "Eric",
"timestamp": "2021-10-25T22:19:10",
"content": "yes please!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,907.18782 | ||
https://hackaday.com/2021/10/25/fast-indoor-robot-watches-ceiling-lights-instead-of-the-road/ | Fast Indoor Robot Watches Ceiling Lights, Instead Of The Road | Donald Papp | [
"car hacks",
"Robots Hacks"
] | [
"autonomous",
"DIYrobocars",
"indoor racing",
"localization",
"opencv",
"position sensing",
"racing",
"robot car"
] | [Andy]’s robot is an autonomous RC car, and he shares
the localization algorithm he developed to help the car keep track of itself
while it zips crazily around an indoor racetrack. Since a robot like this is perfectly capable of driving faster than it can sense, his localization method is the secret to pouring on addit... | 15 | 10 | [
{
"comment_id": "6393795",
"author": "Iván Stepaniuk",
"timestamp": "2021-10-25T18:32:28",
"content": "The Samsung vacuum robots also navigate using a camera that faces up.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393817",
"author": "X",
... | 1,760,372,907.245075 | ||
https://hackaday.com/2021/10/25/vcf-east-2021-novasaur-ttl-computer-sets-the-bar/ | VCF East 2021: Novasaur TTL Computer Sets The Bar | Tom Nardi | [
"cons",
"Hackaday Columns",
"Retrocomputing",
"Slider"
] | [
"emulation",
"gigatron",
"Intel 8080",
"TTL computer",
"VCF East",
"VCF East 2021"
] | There was certainly no shortage of unique computers on display at the 2021 Vintage Computer Festival East; that’s sort of the point. But even with the InfoAge Science and History Museum packed to the rafters with weird and wonderful computing devices stretching back to the very beginning of the digital age,
Alastair He... | 12 | 4 | [
{
"comment_id": "6393778",
"author": "Ren",
"timestamp": "2021-10-25T17:50:38",
"content": "Now to hook it up to a mouse using the info in last week’s HaD article!B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393856",
"author": "Anachronda",
... | 1,760,372,907.142192 | ||
https://hackaday.com/2021/10/25/soft-robotics-hack-chat/ | Soft Robotics Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"assistive",
"FlowIO",
"Hack Chat",
"inflatable",
"Pneumatics",
"robotics",
"silicone",
"vacuum",
"wearable"
] | Join us on Wednesday, October 27 at noon Pacific for the
Soft Robotics Hack Chat
with
Ali Shtarbanov
!
By this point in technological history, we’ve all been pretty well trained in how to think about robots. Designs vary wildly, but to achieve their goals, most robots have one thing in common: they’re rigid. Whether it... | 0 | 0 | [] | 1,760,372,906.97717 | ||
https://hackaday.com/2021/10/25/the-longest-ever-flight-was-over-64-days-in-a-cessna-172/ | The Longest Ever Flight Was Over 64 Days In A Cessna 172 | Lewin Day | [
"Featured",
"History",
"Misc Hacks",
"Original Art",
"Slider"
] | [
"endurance",
"endurance flight",
"flight",
"hacienda",
"record flight",
"world record",
"world record flight"
] | Often, when we think of long-endurance flights, our first thoughts jump to military operations. Big planes with highly-trained crew will fly for long periods, using air-to-air refuelling to stay aloft for extended periods.
However, many of the longest duration flights have been undertaken as entirely civilian operation... | 71 | 16 | [
{
"comment_id": "6393729",
"author": "Ren",
"timestamp": "2021-10-25T15:57:22",
"content": "I was wondering until the final paragraph, if the pilots’ hearing was damaged.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6394781",
"author": "BIll",
... | 1,760,372,907.618175 | ||
https://hackaday.com/2021/10/25/fail-of-the-week-alternator-powered-electric-go-kart-doesnt-go/ | Fail Of The Week: Alternator Powered Electric Go-Kart Doesn’t Go | Adam Fabio | [
"Transportation Hacks"
] | [
"aging wheels",
"alternator",
"fail",
"go-kart"
] | What do you give a six-year-old who loves going fast but doesn’t like loud noises?
Convert a gas go-kart to electric of course
! (Video, embedded below.) That goal started [Robert Dunn] of Aging Wheels down a long path toward a go-kart that almost, but doesn’t quite… work.
If you’ve watched any of [Robert’s] videos, yo... | 21 | 7 | [
{
"comment_id": "6393726",
"author": "Observer",
"timestamp": "2021-10-25T15:29:12",
"content": "I think he messed up in the installation of his Hall sensors.By placing them equidistant around internal circumference of the stator, they will all trigger on the same phase–which you don’t want. Evidenc... | 1,760,372,907.464135 | ||
https://hackaday.com/2021/10/25/tackle-the-monkey-raspberry-pi-gets-round-screen/ | Tackle The Monkey: Raspberry Pi Gets Round Screen | Al Williams | [
"Raspberry Pi"
] | [
"circular display",
"circular screen",
"round display",
"round screen",
"spi",
"SPI display",
"SPI screen",
"tackle the monkey first"
] | You could argue that the project to
add a round screen to a Raspberry Pi
from [YamS1] isn’t strictly necessary. After all, you could use a square display with a mask around it, giving up some screen real estate for aesthetics. However, you’d still have a square shape around the screen and there’s something eye-catching... | 18 | 9 | [
{
"comment_id": "6393676",
"author": "Prabesh Sapkota",
"timestamp": "2021-10-25T11:05:54",
"content": "post the video toodont wanna read about it, want to see it",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393799",
"author": "punkdigerati",
... | 1,760,372,907.516477 | ||
https://hackaday.com/2021/10/25/mesmerizing-mechanical-seven-segment-display/ | Mesmerizing Mechanical Seven-Segment Display | Adam Zeloof | [
"Art",
"clock hacks"
] | [
"art",
"display",
"mechnical",
"seven segment",
"wood"
] | Seven-segment displays are ubiquitous. From where I’m writing this, I can see several without even having to swivel my chair. We’re all familiar with their classic visage; slightly italicized numbers that are brought to life by LEDs. There are a boatload of variants available– you can get displays with a decimal point,... | 14 | 9 | [
{
"comment_id": "6393665",
"author": "Jan",
"timestamp": "2021-10-25T09:21:36",
"content": "nice!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393669",
"author": "Thomas Anderson",
"timestamp": "2021-10-25T09:48:08",
"content": "Wow",
"paren... | 1,760,372,907.294769 | ||
https://hackaday.com/2021/10/24/omni-wheeled-cane-steers-the-visually-impaired-away-from-obstacles/ | Omni-Wheeled Cane Steers The Visually-Impaired Away From Obstacles | Kristina Panos | [
"Lifehacks",
"Microcontrollers",
"News"
] | [
"cane",
"gps",
"lidar",
"omniwheel",
"visually impaired"
] | Sure, there are smart canes out there, commercial and otherwise. We’ve seen more than a few over the years. But a group of students at Stanford University have managed to bring something novel to the augmented cane.
Theirs features a motorized omni wheel that sweeps smoothly from left to right during normal cane operat... | 21 | 5 | [
{
"comment_id": "6393616",
"author": "RetiredHobgoblin",
"timestamp": "2021-10-25T05:24:13",
"content": "What could go wrong?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393639",
"author": "Bob",
"timestamp": "2021-10-25T07:09:32",
"content": "... | 1,760,372,907.760859 | ||
https://hackaday.com/2021/10/24/the-humble-ne-2-neon-lamp-has-a-new-trick/ | The Humble NE-2 Neon Lamp Has A New Trick | Dave Rowntree | [
"Misc Hacks"
] | [
"NE-2",
"neon",
"transducer",
"ultrasound"
] | Ah, the humble neon lamp. The familiar warm orange glow has graced the decks of many a DIY timepiece, sometimes in a purely indicating duty, and sometimes forming a memory element in place of a more conventional semiconductor device. Capable of many other tricks such as the ability to protect RF circuits from HV transi... | 45 | 16 | [
{
"comment_id": "6393609",
"author": "Experienced Experimenter",
"timestamp": "2021-10-25T04:01:54",
"content": "They can also detect electromagnetic waves including light and terahertz radiation. They are technically simple but multi-application devices that were primarily used as indicator lights.... | 1,760,372,907.892175 | ||
https://hackaday.com/2021/10/24/hackaday-links-october-24-2021/ | Hackaday Links: October 24, 2021 | Kristina Panos | [
"Hackaday Columns",
"Hackaday links"
] | [
"Asteroids",
"kde",
"kickstarter",
"Lucy",
"macro pad",
"meteorites",
"robot dogs"
] | It seems that the engineers of NASA’s Lucy spacecraft have some ‘splaining to do. The $981M asteroid-seeking mission launched without a hitch, but when the two solar panels unfolded,
one of them failed to latch into place
. Lucy’s two large solar arrays combine to an impressive 51 square meters. Both are critical to th... | 13 | 7 | [
{
"comment_id": "6393558",
"author": "Ostracus",
"timestamp": "2021-10-24T23:35:19",
"content": "“This move was prompted by several environmentalist groups who pointed out that continuing to recommend gas appliances would not put America on track to reach Biden’s 2050 net-zero carbon emissions goal,... | 1,760,372,907.805051 | ||
https://hackaday.com/2021/10/24/is-a-diode-a-switch/ | Is A Diode A Switch? | Dave Rowntree | [
"Parts"
] | [
"PIN diode",
"RF",
"Switching circuit"
] | Many hardware people around these parts will be familiar with devices used as switches, using at least three-terminals to effect this, an input, an output and a gate. Typical devices that spring to mind are bipolar transistors, triacs and and ye olde triode valve. Can you use a diode to switch a signal even if it has o... | 41 | 11 | [
{
"comment_id": "6393527",
"author": "Michael Black",
"timestamp": "2021-10-24T21:15:28",
"content": "Ironically, diodes have also been used as variable resistors. For switches, you want them full on or off, but by varying the current into the diode, some level of variable resistance. In some ways ... | 1,760,372,908.22509 | ||
https://hackaday.com/2021/10/24/tricky-screw-heads-have-disappearing-slots/ | Tricky Screw Heads Have Disappearing Slots | Ryan Flowers | [
"Misc Hacks",
"Tool Hacks"
] | [
"EDM",
"electric discharge machining",
"fastener",
"machining",
"precision",
"precision machining"
] | Perhaps you’ve seen them, demonstrations of a machined piece of metal that upon further inspection is actually
two
pieces machined so perfectly that they appear as one. With extremely tight tolerances, it’s not possible to determine where one piece of metal ends and another begins — that is, until the secret is reveale... | 51 | 24 | [
{
"comment_id": "6393476",
"author": "Gravis",
"timestamp": "2021-10-24T17:16:52",
"content": "This is the type screw that evil geniuses use in their giant building-destroying robots.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393479",
"author": "Bill... | 1,760,372,908.064012 | ||
https://hackaday.com/2021/10/24/dactyl-chimera-leaves-the-learning-out-of-the-curve/ | Dactyl Chimera Leaves The Learning Out Of The Curve | Kristina Panos | [
"Peripherals Hacks",
"Tool Hacks"
] | [
"adjustable keyboard",
"dactyl keyboard",
"ergonomic keyboard",
"keyboard"
] | Have you been wanting to build your own keyboard, ergonomic or otherwise, but are hesitant to spend all that time and filament on something that may not be a good fit for your hands? Glad as we are that the dactyl is open-source, to get in there and really mess around with it requires intimate knowledge of either OpenS... | 11 | 4 | [
{
"comment_id": "6393455",
"author": "Severe Tire Damage",
"timestamp": "2021-10-24T14:58:09",
"content": "Well frankly I would much much rather work in OpenSCAD than FreeCAD anyday. And I really mean it.But I can take the inverse of this article as a tip that a bunch of keyboard related work has a... | 1,760,372,908.15371 | ||
https://hackaday.com/2021/10/24/capacitive-touch-controller-for-fpgas/ | Capacitive Touch Controller For FPGAs | Bryan Cockfield | [
"FPGA"
] | [
"button",
"capacitive touch",
"fpga",
"hid",
"sensor",
"software",
"vhdl"
] | Most projects that interface with the real world need some sort of input device. Obviously this article is being written from a standardized “human interface device” but when the computers become smaller the problem can get more complicated. We can’t hook up a USB keyboard to every microcontroller since we often only n... | 10 | 6 | [
{
"comment_id": "6393423",
"author": "ROB",
"timestamp": "2021-10-24T11:11:54",
"content": "[Stephan Nolting] isn’t mentioned.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393503",
"author": "Ren",
"timestamp": "2021-10-24T18:52:56",
... | 1,760,372,908.10727 | ||
https://hackaday.com/2021/10/24/bring-that-old-hi-fi-into-the-2020s/ | Bring That Old Hi-Fi Into The 2020s | Jenny List | [
"home entertainment hacks"
] | [
"audio",
"bluetooth",
"ESP32",
"hi-fi",
"streaming"
] | It’s a distressing moment for some of us, when a formerly prized piece of electronic equipment reaches a point of obsolescence that we consider jettisoning it. [Jon Robinson] ran into this dilemma by finding the Kenwood Hi-Fi amplifier his 17-year-old self had spent his savings on. It was a very good amp back in the da... | 41 | 17 | [
{
"comment_id": "6393404",
"author": "Noble Hill",
"timestamp": "2021-10-24T08:28:29",
"content": "Cool, raw muscle with a brain . Thank you Dr Frankenstein!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393920",
"author": "Dennis Dickey",
... | 1,760,372,908.34505 | ||
https://hackaday.com/2021/10/23/this-arduino-terminal-does-all-the-characters/ | This Arduino Terminal Does All The Characters | Jenny List | [
"Arduino Hacks"
] | [
"ansi",
"serial terminal",
"terminal",
"unicode"
] | The job of a dumb terminal was originally to be a continuation of that performed by a paper teletype, to send text from its keyboard and display any it receives on its screen. But as the demands of computer systems extended beyond what mere ASCII could offer, their capabilities were extended with extra characters and g... | 10 | 5 | [
{
"comment_id": "6393397",
"author": "Evan Rowley",
"timestamp": "2021-10-24T05:14:09",
"content": "I wonder what would be required for this to have a keyboard send input.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393448",
"author": "mrule",
... | 1,760,372,908.27408 | ||
https://hackaday.com/2021/10/23/gravity-defying-water-drop-display-shows-potential/ | Gravity-Defying Water Drop Display Shows Potential | Dave Rowntree | [
"Misc Hacks"
] | [
"3d printing",
"resin printing",
"stop motion",
"water"
] | [3DPrintedLife aka Andrew DeGonge] saw that advert for gatorade that shows some slick stop-motion animation using a so-called ‘liquid printer’ and wondered how they built the machine and got it to work so well. The answer, it would seem, involves a
lot of hard work and experimentation
.
Conceptually it’s not hard to gr... | 9 | 4 | [
{
"comment_id": "6393385",
"author": "Brant Holeman",
"timestamp": "2021-10-24T02:08:59",
"content": "Company in Milwaukee has a business with a similar approach",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393411",
"author": "alfcoder",
"... | 1,760,372,908.504776 | ||
https://hackaday.com/2021/10/23/automating-pool-monitoring-and-chemical-dosing/ | Automating Pool Monitoring And Chemical Dosing | Lewin Day | [
"Misc Hacks"
] | [
"home automation",
"pool"
] | Anyone who has had a backyard pool will know that it only takes a little lapsed attention to turn the whole thing green. For those sick of having to stay on top of things, the idea of automating pool care may be attractive. This project from [Discreet Mayor]
hopes to do just that.
Data is graphed for easy analysis usin... | 7 | 2 | [
{
"comment_id": "6393398",
"author": "kanniget",
"timestamp": "2021-10-24T05:58:56",
"content": "Owned a pool for 4 years in the early 2000’s. Once I realised the local pool company made money from over selling chemicals I never had another algae bloom.Convert the pool to a Salt Chlorinator or make ... | 1,760,372,908.636103 | ||
https://hackaday.com/2021/10/23/esp32-cam-makes-a-dandy-motion-detector/ | ESP32-Cam Makes A Dandy Motion Detector | Al Williams | [
"ARM",
"Holiday Hacks"
] | [
"animatronic",
"ESP32",
"ESP32-CAM",
"halloween",
"motion detetion",
"motion sensor",
"motion tracking"
] | Halloween is right around the corner and just about every Halloween project needs some kind of motion sensor. Historically, we’ve used IR and ultrasonic sensors but [Makers Mashup] decided to use an ESP32-Cam as a motion sensor in
his latest animatronic creation
. You can see a video of the device and how it works belo... | 7 | 5 | [
{
"comment_id": "6393333",
"author": "LordNothing",
"timestamp": "2021-10-23T20:07:18",
"content": "this particular module has been on my maybe list for some time now. i hear its not actually very good at video, but im glad it still has its uses.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,372,908.590987 | ||
https://hackaday.com/2021/10/23/an-echo-dot-for-the-1980s/ | An Echo Dot For The 1980s | Kristina Panos | [
"home hacks",
"Misc Hacks"
] | [
"amazon echo dot",
"answering machine",
"echo dot",
"panasonic"
] | There’s so much obsolete technology out there with great design. It’s really sad to see it end up in the landfill, because even though the insides may be outdated, good design is forever. Take this 1980s Panasonic answering machine, for instance.
The smoky plastic of the cassette lid is the perfect screen for Dot
, bec... | 14 | 3 | [
{
"comment_id": "6393297",
"author": "Jonathan Bennett",
"timestamp": "2021-10-23T18:02:50",
"content": "Also works great to hide a near-magical decryption tool.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393352",
"author": "Jason",
"tim... | 1,760,372,908.552832 | ||
https://hackaday.com/2021/10/23/in-search-of-the-first-comment/ | In Search Of The First Comment | Elliot Williams | [
"Hackaday Columns",
"Slider",
"Software Hacks"
] | [
"Ask Hackaday",
"comments",
"literate programming",
"software"
] | Are you writing your code for humans or computers? I wasn’t there, but my guess is that at the dawn of computing, people thought that they were writing for the machines. After all, they were writing in machine language, and whatever bits they flipped into the electronic brain stayed in the electronic brain, unless punc... | 105 | 23 | [
{
"comment_id": "6393240",
"author": "Martin",
"timestamp": "2021-10-23T14:09:48",
"content": "First languages were machine languages, and programs were first written on paper. Comments in mashine language are even more important than in moderl languages, mashine language is so cryptic to humans tha... | 1,760,372,908.916342 | ||
https://hackaday.com/2021/10/23/chip-tester-knows-if-your-old-chips-are-working/ | Chip Tester Knows If Your Old Chips Are Working | Al Williams | [
"Tool Hacks"
] | [
"chip tester",
"commodore",
"IC Tester",
"retrocomputing",
"test equipment"
] | [Noel’s Retro Lab] has looked at retro chip testers before, but in a recent video you can see below he’s looking at the
Chip Tester Pro
, a preassembled chip tester for vintage chips, especially those used in Commodore computers. The device looks good on the surface with a form factor like a calculator or cell phone, a... | 6 | 5 | [
{
"comment_id": "6393219",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-10-23T11:28:35",
"content": "Nice post & potentially relevant given various chips shortages in that ye oldie C or HC 4000/7400 series might just offer some fiddle factors is glue etc in prototypes & repa... | 1,760,372,908.730662 | ||
https://hackaday.com/2021/10/23/you-can-build-a-lego-rubiks-cube/ | You Can Build A Lego Rubik’s Cube | Lewin Day | [
"Misc Hacks",
"Toy Hacks"
] | [
"lego",
"rubiks cube"
] | Rubik’s cubes are a popular puzzle — one found exciting or infuriating depending on your personal bent. [PuzzLEGO] has designed a LEGO Rubik’s cube, with the latest revision
improving on flimsy earlier designs.
The first step was to design a core that would allow the cube to rotate freely without being too loose. This ... | 4 | 3 | [
{
"comment_id": "6393212",
"author": "Danjovic",
"timestamp": "2021-10-23T10:21:41",
"content": "Add a new layer and problem solved!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393233",
"author": "Ren",
"timestamp": "2021-10-23T13:36:42",... | 1,760,372,908.951728 | ||
https://hackaday.com/2021/10/22/vacuum-forming-with-3d-printed-buck-tutorial/ | Vacuum Forming With 3D Printed Buck Tutorial | Al Williams | [
"3d Printer hacks"
] | [
"plastic",
"vacuum formed",
"vacuum former",
"vacuum forming"
] | [Matterhackers] has a nice video tutorial on using
vacuum forming to create plastic items
. Sure, you have a 3D printer, but vacuum forming has some advantages if you are making thin and flexible items quickly. But don’t feel bad. The master item in the process is from a 3D printer. Like a mold, the forming won’t produ... | 9 | 4 | [
{
"comment_id": "6393177",
"author": "Tim",
"timestamp": "2021-10-23T06:16:24",
"content": "This is far too easy to replicate to pay such an amount, besides shouldn’t the DIY version be covered being this is hackaday?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,372,908.775478 | ||
https://hackaday.com/2021/10/22/supply-chain-attack-npm-library-used-by-facebook-and-others-was-compromised/ | Supply Chain Attack: NPM Library Used By Facebook And Others Was Compromised | Ryan Flowers | [
"Software Development",
"Software Hacks"
] | [
"compromise",
"facebook",
"github",
"javascript",
"malware",
"NPM",
"supply chain",
"supply chain attack"
] | Here at Hackaday we love the
good
kinds of hacks, but now and then we need to bring up a less good kind. Today it was learned that the
NPM package
ua-parser-js
was compromised
, and any software using it as a library may have become victim of a supply chain attack. What is
ua-parser-js
and why does any of this matter?
... | 26 | 10 | [
{
"comment_id": "6393169",
"author": "NiHaoMike",
"timestamp": "2021-10-23T04:59:27",
"content": "Time to launch a counterattack that floods them with fake data and submit false shares to the mining pools to get the accounts blacklisted as cheaters?",
"parent_id": null,
"depth": 1,
"repl... | 1,760,372,909.416664 | ||
https://hackaday.com/2021/10/22/3d-printer-cuts-metal/ | 3D Printer Cuts Metal | Bryan Cockfield | [
"3d Printer hacks"
] | [
"3d printer",
"5-Axis",
"cnc",
"electrode",
"machine",
"metal",
"modification",
"print head",
"salt water",
"tool"
] | Every now and then we’ll see a 3D printer that can print an entire house out of concrete or print an entire rocket out of metal. But usually, for our budget-friendly hobbyist needs, most of our 3D printers will be printing small plastic parts. If you have patience and a little bit of salt water, though, take a look at ... | 19 | 10 | [
{
"comment_id": "6393134",
"author": "Grawp",
"timestamp": "2021-10-23T00:30:51",
"content": "I wonder how much work it would be to get to sub 50um accuracy and precision.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393138",
"author": "3dAdd",
"tim... | 1,760,372,909.038101 | ||
https://hackaday.com/2021/10/22/vizio-in-hot-water-over-smart-tv-gpl-violations/ | Vizio In Hot Water Over Smart TV GPL Violations | Tom Nardi | [
"home entertainment hacks",
"News",
"Software Hacks"
] | [
"gpl",
"right to repair",
"smart tv",
"SmartCast",
"software license",
"Vizio"
] | As most anyone in this community knows, there’s an excellent chance that any consumer product on the market that’s advertised as “smart” these days probably has some form of Linux running under the hood. We’re also keenly aware that getting companies to hold up their end of the bargain when it comes to using Linux and ... | 70 | 15 | [
{
"comment_id": "6393078",
"author": "Morgan T",
"timestamp": "2021-10-22T20:11:48",
"content": "YES PLEASE, given the success of openWRT (and a previous user), I would Install OPEN VISIO in a HEARTBEAT.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393080",... | 1,760,372,909.179466 | ||
https://hackaday.com/2021/10/22/testing-3d-printed-cutting-blades-is-scary-work/ | Testing 3D Printed Cutting Blades Is Scary Work | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"3d printing",
"blade",
"cutting blade",
"cutting disc"
] | [Ivan Miranda] comes from a land where the shops close on Sundays. Thus, when he found himself in need of a cutting blade, he realised he would have to build his own, or simply wait. He elected to do the former,
and we get to enjoy the journey.
(Video, embedded below.)
His first attempt was to cut a wooden plank with a... | 15 | 8 | [
{
"comment_id": "6393059",
"author": "SPD",
"timestamp": "2021-10-22T19:04:58",
"content": "Friedrich Mohs rolls in his grave.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393060",
"author": "smellsofbikes",
"timestamp": "2021-10-22T19:08:59",
"... | 1,760,372,909.266716 | ||
https://hackaday.com/2021/10/22/retrotechtacular-this-15th-century-siege-cannon-might-kill-you-instead-of-the-target/ | Retrotechtacular: This 15th-Century Siege Cannon Might Kill You Instead Of The Target | Jenny List | [
"Hackaday Columns",
"History",
"Retrotechtacular",
"Slider"
] | [
"cannon",
"ironwork",
"metalwork",
"wrought iron"
] | For a happy weekend away in early September, I joined a few of my continental friends for the NewLine event organised by Hackerspace Gent in Belgium. You may have seen some of the resulting write-ups here, and for me the trip is as memorable for the relaxing weekend break it gave me in a mediaeval city as it is for the... | 10 | 8 | [
{
"comment_id": "6393047",
"author": "SparkyGSX",
"timestamp": "2021-10-22T18:10:30",
"content": "Now they made a barrel, but how would they cap it, such that the cap wouldn’t be blasted off?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393158",
"... | 1,760,372,909.312482 | ||
https://hackaday.com/2021/10/22/hackaday-podcast-141-lowfer-badges-outrun-clocks-dichroic-lamps-and-piano-action/ | Hackaday Podcast 141: LowFER Badges, Outrun Clocks, Dichroic Lamps, And Piano Action | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Hackaday editors Mike and Elliot Williams catch up on a week’s worth of hacks. It turns out there are several strange radio bands that don’t require a license, and we discuss this weekend’s broadcast where you can listen in. It’s unlikely you’ve ever seen the website check-box abused quite like this: it’s the display f... | 0 | 0 | [] | 1,760,372,909.219832 | ||
https://hackaday.com/2021/10/22/mystery-hp-gear-teardown/ | Mystery HP Gear Teardown | Al Williams | [
"Teardown"
] | [
"hewlett packard",
"HP",
"teardown",
"test equipment"
] | What’s round, has what looks like a vacuum tube in the center, and was made in the 1950s by HP? We don’t know either, but [The Signal Path] restored one and shows us this mystery instrument in
a recent video
that you can see below. We aren’t going to spoil the surprise over what the device is, but we will share that he... | 6 | 3 | [
{
"comment_id": "6393012",
"author": "Lee Studley",
"timestamp": "2021-10-22T15:40:48",
"content": "Dielectric breakdown tester?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393050",
"author": "Col. Panek",
"timestamp": "2021-10-22T18:23:5... | 1,760,372,909.355082 | ||
https://hackaday.com/2021/10/22/this-week-in-security-argentina-mysterysnail-and-l0phtcrack/ | This Week In Security: Argentina, MysterySnail, And L0phtcrack | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"l0pht",
"Patch Tuesday",
"This Week in Security"
] | The government of Argentina has a national ID card system, and as a result maintains a database containing data on every citizen in the country. What could possibly go wrong? Predictably,
an attacker has managed to gain access to the database
, and is offering the entire dataset for sale. The Argentinian government has... | 43 | 12 | [
{
"comment_id": "6392984",
"author": "X",
"timestamp": "2021-10-22T14:25:58",
"content": "People keep saying “if we were more careful in our C and C++ coding, we would not have these issues” but somehow that never happens, and we still keep getting the same security issues over and over again for de... | 1,760,372,909.692965 | ||
https://hackaday.com/2021/10/22/quick-reaction-saves-esa-space-telescope/ | Quick Reaction Saves ESA Space Telescope | Roger Cheng | [
"Space"
] | [
"ESA",
"gamma ray",
"gamma ray detector",
"mission",
"reaction wheel",
"space",
"space debris",
"space safety",
"space telescope",
"telescope"
] | Once launched, most spacecraft are out of reach of any upgrades or repairs. Mission critical problems must be solved with whatever’s still working on board, and sometimes there’s very little time. Recently ESA’s INTEGRAL team was confronted with a ruthlessly ticking
three hour deadline to save the mission
.
European Sp... | 5 | 4 | [
{
"comment_id": "6392986",
"author": "Ren",
"timestamp": "2021-10-22T14:29:25",
"content": "Bravo to the ESA team!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6393020",
"author": "Olivier",
"timestamp": "2021-10-22T16:07:57",
"content": "Impress... | 1,760,372,909.613902 | ||
https://hackaday.com/2021/10/22/an-open-source-game-boy-printer-that-doesnt-print/ | An Open Source Game Boy Printer That Doesn’t Print | Tom Nardi | [
"Nintendo Game Boy Hacks",
"Peripherals Hacks"
] | [
"emulation",
"ESP32",
"game boy",
"game boy printer",
"sd card"
] | While we’ll admit seeing your Game Boy Camera shots come out on a little slip of thermal paper was pretty neat back in 1998, anyone who’s still using the Game Boy Printer these days is probably more interested in getting their images in digital form. Which is why the
open source NeoGB Printer is so exciting
.
A collabo... | 11 | 5 | [
{
"comment_id": "6392971",
"author": "Danners",
"timestamp": "2021-10-22T13:26:44",
"content": "Other than mandating you to involve your actual GB/GBA system in the process, what does this do for you that a $50 GB Operator won’t?That seems like a far more fully-featured Gameboy solution overall, wit... | 1,760,372,909.572817 | ||
https://hackaday.com/2021/10/21/new-part-day-raspberry-pi-lego-hat/ | New Part Day: Raspberry Pi LEGO HAT | Dave Rowntree | [
"Misc Hacks",
"Raspberry Pi"
] | [
"lego",
"lego mindstorms",
"LEGO Spike",
"raspberry pi"
] | The Raspberry Pi Foundation have been busy little bees for the last couple of years producing their own silicon, new boards and now in collaboration with the LEGO Education team a
new HAT to connect to the LEGO SPIKE education platform
. This new HAT board will work with every Raspberry Pi board with a 40-pin GPIO head... | 18 | 6 | [
{
"comment_id": "6392873",
"author": "BrightBlueJim",
"timestamp": "2021-10-22T05:09:33",
"content": "Now, what possible reason could they have for not opening the source code for this. Unbelievable.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6392879",
... | 1,760,372,909.748988 | ||
https://hackaday.com/2021/10/21/mechanical-linkage-cad-for-everyone/ | Mechanical Linkage CAD For Everyone | Al Williams | [
"Robots Hacks"
] | [
"cad",
"Mechanisms",
"simulation"
] | As much as some of us don’t like it, building things for real requires some mechanical component. Maybe it is something as simple as an enclosure or even feet for a PCB, but unless you only write software or play with simulators, you’ll eventually have to build something. It is a slippery slope between drilling holes f... | 32 | 13 | [
{
"comment_id": "6392843",
"author": "Saabman",
"timestamp": "2021-10-22T02:40:59",
"content": "That’s quiet mesmerizing .Damn another project…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393213",
"author": "Nick Bodley",
"timestamp": "20... | 1,760,372,909.940194 | ||
https://hackaday.com/2021/10/21/oculus-go-vr-headset-gets-root-access-no-jailbreak-needed/ | Oculus Go VR Headset Gets Root Access, No Jailbreak Needed | Donald Papp | [
"Virtual Reality"
] | [
"jailbreak",
"Oculus",
"root access",
"vr"
] | The Oculus Go, Facebook’s first generation standalone VR headset, hit the market back in 2018
but it’s taken until now for owners to get an official unlocked OS build
. The release was hinted at by former Oculus CTO John Carmack in a recent Tweet as
something he had been pushing for years
. This opens the hardware comp... | 16 | 8 | [
{
"comment_id": "6392799",
"author": "ScriptGiddy",
"timestamp": "2021-10-22T00:09:55",
"content": "Any applications? Didn’t know support ended, but I’ve still got mine :) always thought it would be a cool POV drone controller.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,909.873391 | ||
https://hackaday.com/2021/10/21/building-a-devils-toothpaste-rocket-motor/ | Building A Devil’s Toothpaste Rocket Motor | Lewin Day | [
"Science"
] | [
"devil's toothpaste",
"elephant's toothpaste",
"hydrogen peroxide",
"rocket"
] | When it comes to weird and wacky homebrew rocket experiments, [Integza] keeps himself fairly busy. He’s now attempted a design repurposing Devil’s Toothpaste
for propulsion.
Devil’s Toothpaste is really the same as the famous
Elephant Toothpaste experiment,
just executed with higher concentration hydrogen peroxide. In ... | 25 | 8 | [
{
"comment_id": "6392708",
"author": "Gregg Eshelman",
"timestamp": "2021-10-21T20:35:36",
"content": "He’s still trying to use plastic for parts that need to be metal, like the nozzle mounting flange. His efforts with 3D printed ceramics would work much better if he’d fire a glaze onto them to elim... | 1,760,372,910.001592 | ||
https://hackaday.com/2021/10/21/smokeless-burn-barrel-makes-your-backyard-fire-much-cleaner/ | Smokeless Burn Barrel Makes Your Backyard Fire Much Cleaner | Lewin Day | [
"Misc Hacks"
] | [
"barrel",
"burn barrel",
"fire"
] | Old 55-gallon drums are often repurposed into fire barrels with the simple addition of a few holes cut into the walls. Generally, they’re fit enough for purpose but can have a very smoky output, particularly when overloaded. However, this design from [Building Stuff Is Fun] combines two drums into one to create a barr... | 80 | 14 | [
{
"comment_id": "6392653",
"author": "lurch",
"timestamp": "2021-10-21T18:36:33",
"content": "Years ago one of my cousins made and tried to produce a burn barrel that was also collapsible that after startup produced a smokeless burn. It was a simple design using directed louvers and a hinge pin setu... | 1,760,372,910.11453 | ||
https://hackaday.com/2021/10/21/going-forward-to-the-land-technology-for-permaculture/ | Going Forward To The Land: Technology For Permaculture | Jenny List | [
"green hacks",
"Hackaday Columns"
] | [
"farming",
"green hacking",
"permaculture"
] | It’s usual for a Hackaday scribe to read hundreds of web pages over a typical week as we traverse the world in search of the good stuff to bring you. Sometimes they’re obvious Hackaday stories but as you’ll all no doubt understand we often end up on wild tangents learning about stuff we never expected to be excited abo... | 34 | 15 | [
{
"comment_id": "6392623",
"author": "Ren",
"timestamp": "2021-10-21T17:11:37",
"content": "“Sometimes they’re obvious Hackaday stories but as you’ll all no doubt understand we often end up on wild tangents learning about stuff we never expected to be excited about. ”I often wish the “Not a Hack!” p... | 1,760,372,910.191872 | ||
https://hackaday.com/2021/10/20/quit-hunching-over-your-screen-with-a-little-robotic-help/ | Quit Hunching Over Your Screen With A Little Robotic Help | Dave Rowntree | [
"Robots Hacks"
] | [
"arduino",
"MPU-6050",
"robotics",
"servo"
] | [Norbert Zare] has identified a problem many of us suffer from – chronically bad posture. Its very common to see computer users hunched forwards over a screen, which eventually will lead to back problems. He mentions that most posture correction devices are pretty boring, so the obvious solution to [Norbert] was to bui... | 8 | 5 | [
{
"comment_id": "6392363",
"author": "Fyllyx",
"timestamp": "2021-10-20T23:17:31",
"content": "LoL, I like it.Kept expecting it to slap him",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6392378",
"author": "Ahron Wayne",
"timestamp": "2021-1... | 1,760,372,910.233703 | ||
https://hackaday.com/2021/10/20/building-a-hammer-powered-by-gunpowder/ | Building A Hammer Powered By Gunpowder | Lewin Day | [
"Tool Hacks"
] | [
"blank",
"blank cartridges",
"gunpowder",
"hammer"
] | Hammers are pretty straightforward tools. If you need more impact force, just get a bigger hammer. Alternatively, you can look at enhancing performance with chemical means, and we don’t mean by using steroids. No, instead, you can try hammering with the aid of gunpowder,
and [i did a thing] has done just that.
The buil... | 24 | 12 | [
{
"comment_id": "6392324",
"author": "drenehtsral",
"timestamp": "2021-10-20T20:09:30",
"content": "I built a little toy cannon that shoots plastic airsoft pellets using these same RamSet blanks and it will happily hurl a 6mm plastic pellet through thin sheet steel. It makes a satisfying “bang” too... | 1,760,372,910.289167 | ||
https://hackaday.com/2021/10/20/labyrinthian-circuit-sculpture-evokes-moods-with-sound-and-light/ | Labyrinthian Circuit Sculpture Evokes Moods With Sound And Light | Ryan Flowers | [
"Art"
] | [
"art",
"circuit art",
"Circuit Sculpture",
"ESP32",
"lm380"
] | In a famous letter penned by Victorian era author Oscar Wilde, he wrote:
“Art is useless because its aim is simply to create a mood. It is not meant to instruct, or to influence action in any way. It is superbly sterile, and the note of its pleasure is sterility.”
We can’t help but wonder if [Eirik Brandal] was evoking... | 5 | 4 | [
{
"comment_id": "6392296",
"author": "x14km2d",
"timestamp": "2021-10-20T19:00:34",
"content": "So beautiful. I love it. <3",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6392298",
"author": "Ren",
"timestamp": "2021-10-20T19:04:00",
"content": "It... | 1,760,372,910.331298 | ||
https://hackaday.com/2021/10/20/tech-in-plain-sight-glucose-meters/ | Tech In Plain Sight: Glucose Meters | Al Williams | [
"Hackaday Columns",
"Interest",
"Medical Hacks",
"Original Art",
"Slider"
] | [
"diabetes",
"glucose",
"glucose meter"
] | If you or someone you know is diabetic, it is a good bet that a glucose meter is a regular fixture in your life. They are cheap and plentiful, but they are actually reasonably high tech — well, at least parts of them are.
The meters themselves don’t seem like much, but that’s misleading. A battery, a few parts, a displ... | 27 | 9 | [
{
"comment_id": "6392266",
"author": "Don Latham",
"timestamp": "2021-10-20T17:14:52",
"content": "The test strips now cost approximately $1.00 each; they are a cash cow just as is the insulin. My endocrinologist claims they are a whopping +- 20% accurate. Any attempt to break into this monopoly ... | 1,760,372,910.550257 | ||
https://hackaday.com/2021/10/20/refining-the-greatest-joystick-of-the-1980s/ | Refining The Greatest Joystick Of The 1980s | Tom Nardi | [
"classic hacks",
"Peripherals Hacks"
] | [
"3D printed parts",
"Joystick",
"retrocomputing",
"retrogaming"
] | The Competition Pro joystick is often considered to be the pinnacle of input devices, at least as far as the 1980s gaming goes. But the design isn’t perfect, and time hasn’t been kind to certain aspects of its mechanism. For example, the large rubber disc used to keep the stick centered on early generations of the hard... | 24 | 10 | [
{
"comment_id": "6392243",
"author": "irox",
"timestamp": "2021-10-20T15:56:10",
"content": "If you want to restore a rubber part (assuming it’s not badly damaged already) try soaking it in brake fluid over night. I picked this tip up from some motorcycle restoration folks, it’s worked well the cou... | 1,760,372,910.390651 | ||
https://hackaday.com/2021/10/20/know-audio-it-all-depends-on-the-dac/ | Know Audio: It All Depends On The DAC | Jenny List | [
"digital audio hacks",
"Hackaday Columns",
"Musical Hacks",
"Slider"
] | [
"audio",
"audio dac",
"dac",
"know audio"
] | Our trip through the world of audio technology has taken us step-by step from your ears into a typical home Hi-Fi system. We’ve seen the speakers and the amplifier, now it’s time to take a look at what feeds that amplifier.
Here, we encounter the first digital component in our journey outwards from the ear, the Digital... | 29 | 10 | [
{
"comment_id": "6392232",
"author": "h2odragon",
"timestamp": "2021-10-20T15:06:59",
"content": "A DAC with low clock jitter is a rare treasure",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6392250",
"author": "Jeff",
"timestamp": "2021-10-... | 1,760,372,910.618202 | ||
https://hackaday.com/2021/10/20/kicad-team-releases-warning-regarding-domain-name/ | KiCad Team Releases Warning Regarding Domain Name | Jim Heaney | [
"News"
] | [
"domain names",
"domain squatting",
"KiCAD"
] | On October 19th, [Seth_h] from the KiCad Project posted on the KiCad forums that the project’s original domain name
kicad-pcb.org
has been unexpectedly sold to a third party, and
urged members of the community to avoid any links to this old website
.
KiCad has used the domain
kicad-pcb.org
since 2012 as the official so... | 23 | 9 | [
{
"comment_id": "6392205",
"author": "SwAkE",
"timestamp": "2021-10-20T13:25:37",
"content": "Fellow (D)NS server and black list managers: please sink all resolution requests to the old kicad-pcb.org domain in a deeeeep hole. Something along 127.0.0.1 would be very appropriate.(Pi-hole, uBlack origi... | 1,760,372,910.694722 | ||
https://hackaday.com/2021/10/20/spinning-threads-put-the-bite-on-filament-in-this-novel-extruder-design/ | Spinning Threads Put The Bite On Filament In This Novel Extruder Design | Dan Maloney | [
"3d Printer hacks"
] | [
"3d printing",
"extruder",
"hot end",
"spinning",
"stepper",
"thread"
] | When it comes to innovation in FDM 3D printing, there doesn’t seem to be much room left to move the needle. Pretty much everything about filament printing has been reduced to practice, with more or less every assembly available off the shelf. Even the business end — the extruder — is so optimized that there’s not much ... | 29 | 16 | [
{
"comment_id": "6392180",
"author": "aamaco",
"timestamp": "2021-10-20T11:39:55",
"content": "Another advantage: it’s about the coolest looking extruder I’ve ever seen.Also, it’s probably a lot easier to visually monitor extrusion rates.",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,372,912.422798 | ||
https://hackaday.com/2021/10/20/audio-tape-interface-revives-microcassettes-as-storage-medium/ | Audio Tape Interface Revives Microcassettes As Storage Medium | Robin Kearey | [
"Retrocomputing"
] | [
"analog",
"audio cassette",
"microcassette"
] | In the early 1980s cassette tapes were the standard storage medium for home computer users; readers of a certain age will remember fiddling with audio jacks, tape counters and signal levels, then waiting for several minutes while a program (hopefully) loaded correctly. While most people happily upgraded to much more re... | 37 | 9 | [
{
"comment_id": "6392153",
"author": "BrightBlueJim",
"timestamp": "2021-10-20T08:34:33",
"content": "I don’t understand. Why do people want to re-invent the 80s? Sure, it was a time of great change. But the changes were all transitional, and things got even better, LATER.",
"parent_id": null... | 1,760,372,912.805822 | ||
https://hackaday.com/2021/10/19/flickering-jack-o-lantern-is-an-easy-beginner-build/ | Flickering Jack O’ Lantern Is An Easy Beginner Build | Lewin Day | [
"Holiday Hacks"
] | [
"arduino",
"halloween",
"jack-o-lanterns"
] | The Jack o’ Lantern is a fun Halloween tradition, though one that does come with a few risks. It’s pretty easy to slice off a bit of finger when carving a stiff pumpkin, and candles draw more enmity from fire crews than most household items. For the electronics beginner looking for a learning project, [Oyvind’s] build
... | 8 | 2 | [
{
"comment_id": "6392278",
"author": "Taylor H",
"timestamp": "2021-10-20T18:07:07",
"content": "I remember reading somewhere a long time ago that the flickering LED candles use a pre-set flicker pattern that was recorded from real candles because they found that purely random flickering wasn’t “rea... | 1,760,372,912.264563 | ||
https://hackaday.com/2021/10/19/sign-detects-rf-to-show-you-are-on-the-air/ | Sign Detects RF To Show You Are On The Air | Al Williams | [
"LED Hacks"
] | [
"edge lighting",
"edge-lit",
"ham radio",
"on the air",
"on the air sign"
] | Like a lot of hams, [Stuart] wanted an “on the air” sign. These signs often connect to a PTT switch or maybe an output from the transmitter that also does things like switches antennas or switches in an amplifier. [Stuart’s] version, though, simply senses the radio frequency emissions from the transmitter and
lights up... | 2 | 2 | [
{
"comment_id": "6392109",
"author": "Scoldog",
"timestamp": "2021-10-20T02:12:13",
"content": "I just got one of these for $20 from my local electronics storehttps://www.zavvi.com.au/gift-home-office/on-air-light/13030328.html?affil=thggpsad&switchcurrency=AUD&shippingcountry=AU&&thg_ppc_campaign=7... | 1,760,372,912.214946 | ||
https://hackaday.com/2021/10/19/the-calls-are-coming-from-inside-the-house-or-workshop/ | The Calls Are Coming From Inside The House (or Workshop) | Kristina Panos | [
"classic hacks",
"Phone Hacks"
] | [
"audio transfomrer",
"lantern battery",
"telephone"
] | Hot on the heels of their carbon microphone build a few years ago,
[Simplifier] strung up a two-phone network between the house and the workshop
. Both telephones are completely DIY except for the pair of switches on the front. Each side has a bell, a microphone, and an audio transformer. Listening is done through a pa... | 16 | 8 | [
{
"comment_id": "6392077",
"author": "Ren",
"timestamp": "2021-10-20T00:03:44",
"content": "1876 all over again!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6392082",
"author": "Unfocused",
"timestamp": "2021-10-20T00:15:48",
"content": "2 left ... | 1,760,372,912.360778 | ||
https://hackaday.com/2021/10/19/esp32-clock-pushes-outrun-graphics-over-composite/ | ESP32 Clock Pushes Outrun Graphics Over Composite | Tom Nardi | [
"classic hacks",
"Microcontrollers",
"Video Hacks"
] | [
"clock",
"composite video",
"ESP32",
"Outrun",
"vaporwave"
] | We’ve covered plenty of clocks powered by the ESP32, but this one from [Marcio Teixeira] is really something special. Rather than driving a traditional physical display, the microcontroller is instead
generating a composite video signal of an animated digital clock
. This could be fed into whatever device you wish, but... | 24 | 12 | [
{
"comment_id": "6392031",
"author": "Danjovic",
"timestamp": "2021-10-19T20:48:17",
"content": "Awesome!!!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6392039",
"author": "hackshack",
"timestamp": "2021-10-19T21:13:47",
"content": "This is mag... | 1,760,372,912.733217 | ||
https://hackaday.com/2021/10/19/turning-old-masks-into-3d-printer-filament/ | Turning Old Masks Into 3D Printer Filament | Tom Nardi | [
"3d Printer hacks",
"green hacks"
] | [
"Covid-19",
"filament extruder",
"Filastruder",
"masks",
"pandemic",
"personal protective equipment"
] | Disposable masks have been a necessity during the COVID-19 pandemic, but for all the good they’ve done, their disposal represents a monumental ecological challenge that has largely been ignored in favor of more immediate concerns. What exactly are we supposed to do with the hundreds of billions of masks that are used o... | 23 | 5 | [
{
"comment_id": "6391992",
"author": "Nathan",
"timestamp": "2021-10-19T18:49:51",
"content": "What exactly are we supposed to do with the hundreds of billions of masks that are used once or twice and then thrown away?A better question might be how can you separate them from the waste stream. I’d ve... | 1,760,372,912.484374 | ||
https://hackaday.com/2021/10/19/vcf-east-roars-back-to-life/ | VCF East Roars Back To Life | Tom Nardi | [
"cons",
"Current Events",
"Hackaday Columns",
"Retrocomputing",
"Slider"
] | [
"VCF East 2021",
"Vintage Computer Festival",
"Vintage Computer Festival East"
] | It didn’t take long to realize that the
2021 Vintage Computer Festival East
— returning to the InfoAge Science and History Museum in Wall, New Jersey after being held virtually last year — was a massive success. In fact, the first clue came before I even got out of my car. When a volunteer came up to my window to apolo... | 15 | 10 | [
{
"comment_id": "6391973",
"author": "Ren",
"timestamp": "2021-10-19T17:50:23",
"content": "Thanks for the report!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6391977",
"author": "rclark",
"timestamp": "2021-10-19T18:00:00",
"content": "Neat stu... | 1,760,372,912.672679 | ||
https://hackaday.com/2021/10/19/the-quadrivium-ensemblebot-is-a-labour-of-love/ | The Quadrivium EnsembleBot Is A Labour Of Love | Dave Rowntree | [
"Musical Hacks"
] | [
"arduino",
"CAN",
"orchestra",
"organ"
] | The
Quadrivium EnsembleBot project
is a mashup between old school musical instruments and the modern MIDI controlled world. Built by a small team over several years, these hand crafted instruments look and sound really nice.
The electronics side of things is taken care of with a pile of Arduinos and off-the-shelf modul... | 5 | 3 | [
{
"comment_id": "6392001",
"author": "echodelta",
"timestamp": "2021-10-19T19:24:07",
"content": "That snare drum is too loud even in a glass case, tempo is too fast too. Other than that it’s a good little fairground organ.I’ve noticed for years that children will run the tempo all the way up to max... | 1,760,372,912.306971 | ||
https://hackaday.com/2021/10/19/the-low-down-on-long-wave-unlicensed-experimental-radio/ | The Low-Down On Long-Wave: Unlicensed Experimental Radio | Adam Zeloof | [
"Featured",
"Interest",
"Original Art",
"Radio Hacks",
"Slider"
] | [
"amateur radio",
"experimental",
"ham radio"
] | In the 125 years since Marconi made his first radio transmissions, the spectrum has been divvied up into ranges and bands, most of which are reserved for governments and large telecom companies. Amidst all of the corporate greed, the “little guys” managed to carve out their own small corner of the spectrum, with the he... | 70 | 21 | [
{
"comment_id": "6391904",
"author": "WO8E",
"timestamp": "2021-10-19T14:16:53",
"content": "Here’s the fun part.. You can drive your PA with up to a watt. It doesn’t say what your final output should be.“15.217 Operation in the band 160–190kHz.(a) The total input power to the final radio frequency ... | 1,760,372,912.596509 | ||
https://hackaday.com/2021/10/19/the-pinephone-pro-is-here-but-its-still-probably-not-the-year-of-open-source-linux-on-the-smartphone/ | The PinePhone Pro Is Here. But It’s Still Probably Not The Year Of Open-Source Linux On The Smartphone | Jenny List | [
"Cellphone Hacks"
] | [
"Pine64",
"pinephone",
"PinePhone Pro"
] | A trope in open source commentary over the last decades has been the phrase “Is this the year of Linux on the desktop?”, as though the open source OS will finally break through and challenge Windows. In fact the process has been one of stealth rather than explosive growth, as the likes of ChromeOS with its Linux underp... | 82 | 19 | [
{
"comment_id": "6391873",
"author": "Steve Spence",
"timestamp": "2021-10-19T11:03:45",
"content": "36 million+ raspberry pi’s sold, and growing. Linux rules.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6391907",
"author": "X",
"timestamp... | 1,760,372,913.05727 | ||
https://hackaday.com/2021/10/19/drone-and-high-voltage-spin-up-this-diy-corona-motor/ | Drone And High Voltage Spin Up This DIY Corona Motor | Tom Nardi | [
"classic hacks",
"Science"
] | [
"corona motor",
"electrostatic motor",
"high voltage",
"Plasma Channel"
] | The average Hackaday user could probably piece together a rough model of a simple DC motor with what they’ve got kicking around the parts bin. We imagine some of you could even get a brushless one up and running without too much trouble. But what about an electrostatic corona motor? If your knowledge of turning high vo... | 5 | 5 | [
{
"comment_id": "6391959",
"author": "Jack",
"timestamp": "2021-10-19T16:55:32",
"content": "Howard w Sam’s produced a manual to make and repair electromechanical generators and motors back in the day. Although kind of a rare book today , one can find a copy at your local library. Great reading , an... | 1,760,372,913.107582 | ||
https://hackaday.com/2021/10/18/polf-retro-3d-game-uses-only-a-character-display/ | POLF: Retro 3D Game Uses Only A Character Display | Donald Papp | [
"Games",
"Retrocomputing"
] | [
"character based",
"commodore",
"POLF",
"retro",
"vintage"
] | Got a retrocomputing itch? So does [David Given], and luckily for us all
he indulged it by writing POLF: a first-person 3D game for the Commodore PET
that uses only the system’s 40×25 text mode character display for visuals. It’s a fantastic achievement, considering that the 80s-era computer boasts 32 kB of memory and ... | 11 | 6 | [
{
"comment_id": "6391814",
"author": "Bob",
"timestamp": "2021-10-19T05:08:18",
"content": "32k of RAM? Man, wish my pet had that much.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6391826",
"author": "irox",
"timestamp": "2021-10-19T06:38:46",
"... | 1,760,372,913.254359 | ||
https://hackaday.com/2021/10/18/a-microwave-frequency-doubler/ | A Microwave Frequency Doubler | Al Williams | [
"Radio Hacks"
] | [
"frequency doubler",
"microstrip",
"microwave",
"RF",
"strip line",
"stripline"
] | It is an age-old problem. You have a 2.5 GHz source and you want it at 5 GHz. You need a
frequency doubler
. [All Electronics Channel] has an interesting video that talks not only about the theory of such a device but shows a practical one made with copper strips on a blank PCB substrate.
A fun thing about microwaves i... | 14 | 9 | [
{
"comment_id": "6391795",
"author": "Paulo Dutra - PU4THZ",
"timestamp": "2021-10-19T02:42:41",
"content": "Interesting… RF Copper tape magic is the best!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6391796",
"author": "Paulo Dutra - PU4THZ",
"time... | 1,760,372,913.204894 | ||
https://hackaday.com/2021/10/21/announcing-the-next-round-of-remoticon-talks/ | Announcing The Next Round Of Remoticon Talks | Kristina Panos | [
"cons",
"Hackaday Columns"
] | [
"2021 Hackaday Remoticon",
"presenters",
"Remoticon",
"talks"
] | It’s coming up fast — Hackaday Remoticon 2021 is just a few weeks away, and we’re working around the clock to load up the weekend with awesome and inspiring talks that are bound to get the creative juices racing through your crazy straw brain.
Come and practice your neuroplasticity with us on November 19th and 20th. Re... | 2 | 1 | [
{
"comment_id": "6393066",
"author": "nebk",
"timestamp": "2021-10-22T19:28:46",
"content": "Looking forward to the talks, particularly the ESP32 WiFi reverse engineering.As a side note, the code of conduct link on the registration page is broken.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,372,913.152472 | ||
https://hackaday.com/2021/10/21/3d-printable-scope-probe-adapts-to-your-needs/ | 3D Printable Scope Probe Adapts To Your Needs | Dave Rowntree | [
"Tool Hacks"
] | [
"3d printing",
"oscilloscope",
"probe"
] | If there’s one this we electronics engineers are precious about, it’s our test gear. The instruments themselves can be obscenely expensive, since all that R&D effort needs to be paid back over a much smaller user base compared to say a DVD player. The test probes themselves can often come with an eye-watering price tag... | 18 | 8 | [
{
"comment_id": "6392570",
"author": "X",
"timestamp": "2021-10-21T15:13:29",
"content": "In our lab we had to put anti theft devices on the scope probes because they 10:1 away.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6392596",
"author": "RP",... | 1,760,372,913.317568 | ||
https://hackaday.com/2021/10/21/the-incredible-tech-of-the-vacuum-seal-flask/ | The Incredible Tech Of The Vacuum-Seal Flask | Kristina Panos | [
"Featured",
"History",
"Interest",
"Science",
"Slider"
] | [
"convection",
"dewar flask",
"endothermic",
"evaporation",
"exothermic",
"heat conduction",
"in this house we obey the laws of thermodynamics",
"radiation",
"Sir James Dewar",
"thermodynamics",
"thermos",
"vacuum sealed"
] | I recently started using a 50-year-old vacuum-seal flask that belonged to my Grandpa so that I don’t have to leave the dungeon as often to procure more caffeine. Besides looking totally awesome on my side desk, this thing still works like new, at least as far as I can tell — it’s older than I am.
Sir James Dewar’s orig... | 38 | 19 | [
{
"comment_id": "6392531",
"author": "Nathan",
"timestamp": "2021-10-21T14:10:37",
"content": "Don’t forget to fill (and empty) your vacuum-sealed flask with hot or cold water first to eliminate its thermal capacity before filling with fluid of choice!",
"parent_id": null,
"depth": 1,
"r... | 1,760,372,913.399085 | ||
https://hackaday.com/2021/10/21/build-a-moon-phase-clock-that-looks-like-the-real-thing/ | Build A Moon Phase Clock That Looks Like The Real Thing | Lewin Day | [
"clock hacks"
] | [] | The moon is a beautiful thing that has captivated humanity for centuries, particularly before the advent of television and the Internet when there was nothing else to watch. [JCM_MatSci] developed a clock which tracks the phases of the moon, so you can keep an eye on the state of Earth’s satellite without even having
t... | 8 | 6 | [
{
"comment_id": "6392534",
"author": "Ren",
"timestamp": "2021-10-21T14:15:22",
"content": "“Antique”-a-thera mechanism.B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6392693",
"author": "Punbelievable",
"timestamp": "2021-10-21T20:11:15"... | 1,760,372,913.460979 | ||
https://hackaday.com/2021/10/21/british-licence-plate-camera-fooled-by-clothing/ | British Licence Plate Camera Fooled By Clothing | Jenny List | [
"News",
"Transportation Hacks"
] | [
"license plate",
"number plate",
"ocr"
] | It’s a story that has caused consternation and mirth in equal measure amongst Brits, that
the owners of a car in Surrey received a fine for driving in a bus lane miles away in Bath,
when in fact the camera had been confused by the text on a sweater worn by a pedestrian. It seems the word “knitter” had been interpreted ... | 43 | 13 | [
{
"comment_id": "6392447",
"author": "Nitpicker Smartyass",
"timestamp": "2021-10-21T08:04:48",
"content": "In discussions about “AI” (haha, insane laughter from someone having used semi-automated self correcting statistical methods in software since the 1980s …) I always, almost every single time, ... | 1,760,372,913.578059 | ||
https://hackaday.com/2021/10/20/raspberry-pi-tablet-gets-radio-surgical-enhancement/ | Raspberry Pi Tablet Gets Radio Surgical Enhancement | Al Williams | [
"Radio Hacks",
"Raspberry Pi"
] | [
"raspberry pi",
"RTL-SDR",
"sdr"
] | We always get excited when we buy a new tablet. But after a few months, it usually winds up at the bottom of a pile of papers on the credenza, a victim of not being as powerful as our desktop computers and not being as convenient as our phones. However, if you don’t mind a thick tablet, you can get the RasPad enclosure... | 27 | 3 | [
{
"comment_id": "6392433",
"author": "John",
"timestamp": "2021-10-21T06:13:47",
"content": "Who do I have to kill (or what do I have to google) to get some short extension cables like that?! I can’t find any shorter than 10cm, and that double HDMI cable setup is awesome! Finding narrow and progress... | 1,760,372,913.663201 | ||
https://hackaday.com/2021/10/20/bright-lightbulb-saves-old-radios/ | Bright Lightbulb Saves Old Radios | Al Williams | [
"Radio Hacks",
"Repair Hacks"
] | [
"dim bulb",
"dim bulb tester",
"light bulb",
"variac",
"vintage"
] | If you work on old equipment, you know that there’s always that tense moment when you first plug it in and turn it on. No matter how careful you have been, there’s some chance your garage sale find is going to go up in smoke. [BasinStreetDesign]
built a little box
that can help. On one side is a variac and the device y... | 45 | 15 | [
{
"comment_id": "6392388",
"author": "Col_Panek",
"timestamp": "2021-10-21T02:10:58",
"content": "Answers the question of “what do I do with all these incandescents? ”I”ve used small ones for regulating the charging current on batteries.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,913.750379 | ||
https://hackaday.com/2021/10/18/laser-pointer-and-arduino-make-a-minimalistic-shooting-game/ | Laser Pointer And Arduino Make A Minimalistic Shooting Game | Robin Kearey | [
"Arduino Hacks",
"Games"
] | [
"arcade game",
"arduino",
"laser pointer",
"shooter"
] | Video games are great and all, but sometimes you just want the thrill of manipulating actual objects in addition to watching action on a screen. This must have been the reason why Nintendo’s Duck Hunt became so popular despite the simplicity of its gameplay. Prolific hacker [mircemk] similarly made a computer-plus-phys... | 7 | 5 | [
{
"comment_id": "6391809",
"author": "DSM",
"timestamp": "2021-10-19T04:42:06",
"content": "Looks like a fun project, but I’m pretty sure you can detect and display hits with just LEDs if they are of a similar color to the laser. Even one of those LED array modules so you can score the accuracy.",
... | 1,760,372,913.846917 | ||
https://hackaday.com/2021/10/18/build-a-dog-ball-launcher-that-kinda-looks-like-a-dog/ | Build A Dog Ball Launcher That Kinda Looks Like A Dog | Lewin Day | [
"Misc Hacks"
] | [
"ball launcher",
"dog",
"pi pico"
] | The average garden dog will play fetch long beyond the average human’s endurance. If you want to keep your dog exercised without hurting your pitching arm, [brankly’s] automatic dog ball launcher
might just be what you need.
The design is straightforward. The 3D printed housing features a large funnel into which a ball... | 12 | 6 | [
{
"comment_id": "6391728",
"author": "Snow",
"timestamp": "2021-10-18T20:09:54",
"content": "i don’t have a dog but wouldn’t it make more sense to build it in such a way that the dog can actually put the ball back for another go?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,913.998957 | ||
https://hackaday.com/2021/10/18/the-hp3458a-king-of-multimeters-for-three-decades/ | The HP3458A: King Of Multimeters For Three Decades | Al Williams | [
"Repair Hacks",
"Teardown",
"Tool Hacks"
] | [
"agilent",
"HP",
"HP3458A",
"metrology"
] | [Marco] looks at a lot of meters. However, he considers the
HP3458A
the best even though they were introduced more than 30 years earlier in 1989. Someone donated one to [Marco] but it presented some error messages on startup and exhibited erratic behavior, so he had some repairs to do.
The error codes hinted there were... | 16 | 7 | [
{
"comment_id": "6391684",
"author": "smellsofbikes",
"timestamp": "2021-10-18T18:51:20",
"content": "I used to work with one of the engineers who designed the analog section of this. He said it was an enormous effort and took them a lot more work than they anticipated, and he thinks that’s part of... | 1,760,372,913.802375 | ||
https://hackaday.com/2021/10/18/they-milk-cows-dont-they/ | They Milk Cows, Don’t They? | Kristina Panos | [
"chemistry hacks",
"Hackaday Columns",
"Interest",
"Original Art",
"Slider"
] | [
"casein",
"dairy",
"fermentation",
"milk proteins"
] | You’ve no doubt heard of the many alternatives to cow’s milk that are available these days. Perhaps you’ve even tried a few of them in your quest to avoid lactose. Some coffeehouses have already moved on from soy milk, offering only oat or almond milk instead of 2% and whole. Their reasoning is that soy milk is a highl... | 90 | 20 | [
{
"comment_id": "6391636",
"author": "Ren",
"timestamp": "2021-10-18T17:15:26",
"content": "I could not find a video link of Fry and Leela milking Holstein bugs on the Moon.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6393182",
"author": "Samson",... | 1,760,372,914.266618 | ||
https://hackaday.com/2021/10/18/making-your-projects-move-jeremy-fielding-to-deliver-remoticon-keynote/ | Making Your Projects Move: Jeremy Fielding To Deliver Remoticon Keynote | Dan Maloney | [
"cons",
"Featured",
"Slider"
] | [
"2021 Hackaday Remoticon",
"keynote"
] | We’re really excited to announce that Jeremy Fielding will give a keynote address at Hackaday Remoticon in November!
Get your free ticket now
!
The projects we in this community choose to tackle often take a lot to see to completion. Parts, tools, expertise, time; all are critical to getting projects from concept to re... | 4 | 4 | [
{
"comment_id": "6391787",
"author": "rich",
"timestamp": "2021-10-19T01:57:01",
"content": "Good call guys. Jeremy Fielding is a good choice and brings things to an easy understanding for the lay person as you guys do and have a reputation for, without skimping on the intellectual and technical ne... | 1,760,372,914.311284 | ||
https://hackaday.com/2021/10/18/arduino-brings-usb-mouse-to-homebrew-computer/ | Arduino Brings USB Mouse To Homebrew Computer | Tom Nardi | [
"Arduino Hacks",
"Peripherals Hacks",
"Retrocomputing"
] | [
"6502 processor",
"Arduino Mega 2560",
"homebrew computer",
"interrupt",
"usb hid",
"usb mouse"
] | When building your own homebrew computer, everything is a challenge. Ultimately, that’s kind of the point. If you didn’t want to
really
get your hands dirty with the nuts and bolts of the thing, you wouldn’t have built it in the first place. For example, take the lengths to which
[rehsd] was willing to go in order to s... | 2 | 1 | [
{
"comment_id": "6392261",
"author": "Ren",
"timestamp": "2021-10-20T17:05:20",
"content": "Okay, no other comments yet…I’m musing on whether this could be used to add mouse to a Timex-Sinclair 1000 (ZX81).(Yes, I know this is for a 6502 and the TS1000 is Z80)",
"parent_id": null,
"depth": 1... | 1,760,372,913.951451 | ||
https://hackaday.com/2021/10/18/electric-vehicles-the-gasoline-problem-and-synthetic-fuels-part-1/ | Electric Vehicles, The Gasoline Problem, And Synthetic Fuels | Dan Maloney | [
"chemistry hacks",
"Current Events",
"Featured",
"Interest",
"Science",
"Slider"
] | [
"alkane",
"asphalt",
"crude oil",
"diesel",
"distillation",
"fuel",
"gasoline",
"hydrocarbons",
"kerogen"
] | When you’re standing at the gas station filling up your car, watching those digits on the pump flip by can be a sobering experience. Fuel prices, especially the price of gasoline, have always been keenly watched, so it’s hard to imagine a time when gasoline was a low-value waste product. But kerosene, sold mainly for l... | 115 | 17 | [
{
"comment_id": "6391543",
"author": "Stajp",
"timestamp": "2021-10-18T14:09:55",
"content": "Can the gasoline be used in some kind of thermal based powerplant, but with less pollution for the same amount of energy as in ICE automobiles?",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,914.794159 | ||
https://hackaday.com/2021/10/18/play-doom-using-web-browser-checkboxes-finally/ | Play DOOM Using Web Browser Checkboxes (Finally) | Chris Wilkinson | [
"Games"
] | [
"doom",
"game",
"port",
"webassembly"
] | If you’ve ever felt the need to render DOOM using nothing but web browser checkboxes, [Andrew Healey] has you covered with his
recent port of the first-person shooter
. Naturally, this gets our
tick
of approval.
Yes, you read that right. You can now play DOOM in a 160 x 100 grid of HTML-generated checkboxes, much like ... | 13 | 7 | [
{
"comment_id": "6391513",
"author": "Gravis",
"timestamp": "2021-10-18T12:25:42",
"content": "We’ve ported DOOM to so many things that I’m pretty sure that there is eventually be quantum computer demonstration of which shows every possible state of DOOM and allows you to navigate (endlessly) throug... | 1,760,372,914.365523 | ||
https://hackaday.com/2021/10/18/printable-caliper-jaws-increase-precision-deflect-derision/ | Printable Caliper Jaws Increase Precision, Deflect Derision | Dan Maloney | [
"Tool Hacks"
] | [
"caliper",
"cutting",
"jaws",
"machining",
"marking",
"precision"
] | If you’ve watched as many machining videos as we have, no doubt you’ve seen someone commit the cardinal sin of metalworking: using caliper jaws to scratch a mark into metal. Even if it’s a cheap Harbor Freight caliper rather than an expensive Starrett or Mitutoyo tool being abused, derision and scorn predictably rain d... | 25 | 7 | [
{
"comment_id": "6391475",
"author": "Chris",
"timestamp": "2021-10-18T08:31:18",
"content": "I have a 15€ pair of calipers specifically for scribing. Takes two minutes to stone a point back onto the jaws about once a year. This design is fine but if you attach this contraption to your calipers, you... | 1,760,372,914.430127 | ||
https://hackaday.com/2021/10/17/an-easy-fix-for-inconsistent-layers-in-cheap-3d-printers/ | An Easy Fix For Inconsistent Layers In Cheap 3D Printers | Dan Maloney | [
"3d Printer hacks"
] | [
"3d printer",
"Cetus Mk3",
"eccentric",
"extruder",
"extrusion problem",
"gear",
"layer leight",
"stepper",
"wobble"
] | If there’s one thing you can say about [Stefan] from CNC Kitchen, it’s that he’s methodical when he’s working on an improvement to his 3D printing processes, or when he’s chasing down a problem with a printer. Case in point:
this root-cause analysis of extrusion inconsistencies
with an entry-level 3D printer.
The print... | 26 | 6 | [
{
"comment_id": "6391451",
"author": "Justin Drentlaw",
"timestamp": "2021-10-18T05:44:39",
"content": "I would not consider the Cetus Mk. 3 an entry level printer. An entry level printer would be something closer to an Ender 3 Pro. And regarding it’s “insanely low price”, I paid $780 total for my C... | 1,760,372,914.491747 | ||
https://hackaday.com/2021/10/17/arduino-nano-floppy-emulator-for-when-your-disk-is-not-accessible/ | Arduino Nano Floppy Emulator For When Your Disk Is Not Accessible | Jenny List | [
"Arduino Hacks"
] | [
"arduino nano",
"floppy disk",
"floppy emulator"
] | Among the plethora of obsolete removable media there are some which are lamented, but it can be difficult to find those who regret the passing of the floppy disk. These flexible magnetic disks in hard plastic covers were a staple of computing until some time in the early 2000s, and their drives could be found by the cr... | 15 | 7 | [
{
"comment_id": "6391436",
"author": "That kid",
"timestamp": "2021-10-18T02:42:12",
"content": "AwesomeAlways a need for floppy emulation for retro support",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6391447",
"author": "Chris",
"timestamp": "2021-... | 1,760,372,914.54331 | ||
https://hackaday.com/2021/10/17/hackaday-links-october-17-2021/ | Hackaday Links: October 17, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"counting",
"fellowship",
"hackaday links",
"ohs",
"Open Hardware Summit",
"optics",
"PCB design",
"stun gun",
"walrus",
"WWF"
] | We found
a couple of headlines this week
that seemed pretty alarming at first, mentioning as they did both “Chinese grannies” and “stun guns.” Digging a little deeper, it appears that widespread elder abuse isn’t what this is about, although there certainly is an unsavory aspect to the story. Apparently, it’s pretty co... | 22 | 6 | [
{
"comment_id": "6391382",
"author": "deshipu",
"timestamp": "2021-10-17T23:04:53",
"content": "The important question about the stun gun is: does it also work against leafblowers?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6391415",
"author": "T... | 1,760,372,914.599978 | ||
https://hackaday.com/2021/10/17/qb64-hits-version-2-0-gets-enhanced-debugging/ | QB64 Hits Version 2.0, Gets Enhanced Debugging | Tom Nardi | [
"classic hacks",
"Software Development"
] | [
"basic",
"cross-platform",
"debugging",
"QB64",
"Qbasic"
] | Despite the name, BASIC isn’t exactly a language recommended for beginners these days. Technology has moved on, and now most people would steer you towards Python if you wanted to get your feet wet with software development. But for those who got their first taste of programming by copying lines of BASIC out of a compu... | 28 | 13 | [
{
"comment_id": "6391347",
"author": "tim",
"timestamp": "2021-10-17T20:37:42",
"content": "QB64 is awesome – I have used it for several projects, including logging fire alarm panel data, ID scans at gates, etc. Compiled .exe is self-contained and runs quick and smooth.",
"parent_id": null,
... | 1,760,372,914.863536 | ||
https://hackaday.com/2021/10/17/vise-tripod-lets-you-put-the-tool-where-you-need-it/ | Vise Tripod Lets You Put The Tool Where You Need It | Lewin Day | [
"Tool Hacks"
] | [
"tool",
"tool hacks",
"tools",
"vise"
] | Vises are useful things for holding whatever you’re working on, but too often they’re stuck to a bench. [seamster] has experienced the glory of having a more portable solution, however, and has shared his design for a heavy duty vise tripod
that provides just that.
The trick is that to be useful, the design must be hea... | 7 | 6 | [
{
"comment_id": "6391324",
"author": "Alex99a",
"timestamp": "2021-10-17T18:29:31",
"content": "I’d still worry about pushing it over if the loads on it aren’t straight down. Perhaps mount it on a stout steel plate heavy enough to make it more stable, but not so heavy that it isn’t at least luggable... | 1,760,372,914.907673 | ||
https://hackaday.com/2021/10/17/machining-wood-inlays-no-cnc-required/ | Machining Wood Inlays, No CNC Required | Dan Maloney | [
"Tool Hacks"
] | [
"cnc",
"drill",
"inlay",
"parser",
"passer",
"routing",
"steel",
"template",
"tool",
"woodworking"
] | It’s almost hard to remember a time when the obvious answer to most questions about manufacturing wasn’t “Throw it on the CNC.” CNC machines have become so entrenched that the acronym has become a verb; few people would misunderstand a statement like “Let’s just CNC that.”
But before CNC machines became so ubiquitous, ... | 13 | 6 | [
{
"comment_id": "6391292",
"author": "JuergenUK",
"timestamp": "2021-10-17T14:39:37",
"content": "Retro-mechanics – exellent video",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6391296",
"author": "Menga",
"timestamp": "2021-10-17T14:55:46",
"cont... | 1,760,372,914.956186 | ||
https://hackaday.com/2021/10/17/a-redesigned-zx-spectrum-desktop-computer-that-works-surprisingly-well/ | A Redesigned ZX Spectrum Desktop Computer That Works Surprisingly Well | Jenny List | [
"Retrocomputing"
] | [
"sinclair",
"ZX microdrive",
"ZX Spectrum"
] | Retrocomputer enthusiasts will quite often be found pondering the great
what ifs
of their hobby. What if Commodore had had a half-way decent marketing division is a popular one, but the notoriously penny-pinching ways of Sinclair Research are also a plentiful source. What if Sinclair had won the competition for a compu... | 20 | 7 | [
{
"comment_id": "6391290",
"author": "Mark S.",
"timestamp": "2021-10-17T14:36:25",
"content": "Unfortunately, Microdrives are a dead end street. the tape cartridges use a small block of felt to press the tape against the playback head. That piece of felt inevitably crumbles to dust and this kills t... | 1,760,372,915.014851 | ||
https://hackaday.com/2021/10/17/electronic-covid-test-tear-down-shows-frustrating-example-of-1-time-use-waste/ | Electronic Covid Test Tear Down Shows Frustrating Example Of 1-Time-Use Waste | Al Williams | [
"Medical Hacks",
"Teardown"
] | [
"antigen",
"antigen test",
"coronavirus",
"COVID",
"Covid-19"
] | The latest video from [TheSignalPath] is a result of his purchase of a home COVID-19 test.
He found an electronic version that connects to your cell phone and displays the results on the phone
. The device is an antigen test and, internally, works like the home tests that show the results using lines similar to a pregn... | 68 | 34 | [
{
"comment_id": "6391232",
"author": "SparkyGSX",
"timestamp": "2021-10-17T08:52:32",
"content": "Why does this even exist? Especially in the current semiconductor crisis, this is completely ridiculous, it’s wasteful, more complicated then the normal test strip, and apparently, a lot less reliable.M... | 1,760,372,915.219674 | ||
https://hackaday.com/2021/10/16/the-wireless-ps-2-keyboard-that-never-was/ | The Wireless PS/2 Keyboard That Never Was | Dan Maloney | [
"Retrocomputing"
] | [
"ESP8266",
"fpga",
"neptUNO",
"PS/2",
"retrocomputer",
"websocket",
"wemos d1 mini"
] | The PS/2-style port was once about as ubiquitous on PCs as USB connectors are today, and more than a few of us accumulated a fair collection of keyboards and mice that sported the 6-pin mini-DIN plug. They’re not nearly as common today, but when you need one, you need one, so if your stockpile of PS/2 keyboards has dwi... | 11 | 6 | [
{
"comment_id": "6391210",
"author": "Michael Black",
"timestamp": "2021-10-17T05:28:55",
"content": "The PC Jr had a wireless keyboard. Used infrared.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6391367",
"author": "Generic Human",
"time... | 1,760,372,915.436509 | ||
https://hackaday.com/2021/10/16/its-a-hack-air-scrubber-controlled-using-the-room-lighting/ | It’s A Hack: Air Scrubber Controlled Using The Room Lighting | Dave Rowntree | [
"Tool Hacks"
] | [
"arduino",
"dust extraction",
"woodworking"
] | Some products just seem to be designed to be annoying. [hardmar] discovered the
air filtration system installed in his son’s basement woodshop
was orientated for the best airflow, but rather poorly positioned to actually turning the thing on and off. For some reason the unit has its single line-of-sight IR receiver on ... | 8 | 4 | [
{
"comment_id": "6391200",
"author": "PWalsh",
"timestamp": "2021-10-17T02:45:42",
"content": "Not to cast aspersions on a good hack, but wouldn’t a small mirror close to and behind the unit give access to the IR channel from the front? IR will bounce off of a lot of things, a white-painted surface ... | 1,760,372,915.387136 | ||
https://hackaday.com/2021/10/16/the-simplest-way-to-spot-2-4ghz-rf/ | The Simplest Way To Spot 2.4GHz RF | Jenny List | [
"Radio Hacks"
] | [
"crystal radio",
"microwave",
"microwave detector"
] | When the cool kids are showing off their SDRs it’s easy to forget that a radio receiver can be very simple indeed. The crystal set is one of the earliest forms of radio receiver, a tuned circuit and a diode that would pick up those AM broadcast stations no problem. But lest you imagine that these receivers can only pic... | 24 | 7 | [
{
"comment_id": "6391180",
"author": "Michael Black",
"timestamp": "2021-10-16T23:17:20",
"content": "Something like this was in Electronics decades ago. The diode with the leads as an antenna, but a cheap “tuning meter” as the indicator. Presented as a “microwave leak detector”.",
"parent_id":... | 1,760,372,915.28112 | ||
https://hackaday.com/2021/10/16/fail-of-the-week-magnetic-levitation/ | Fail Of The Week: Magnetic Levitation | Al Williams | [
"Microcontrollers",
"Misc Hacks"
] | [
"control loop",
"maglev",
"Magnetic levitation",
"pid"
] | We are big fans of the little desktop magnetic levitation setups that float a small object on a magnet. As [3D Printed Life] points out, they look like magic. He was surprised that the commercial units use analog electronics. He decided to build
a digital version
but didn’t know what he was getting into. He details his... | 26 | 9 | [
{
"comment_id": "6391140",
"author": "Comedicles",
"timestamp": "2021-10-16T20:05:49",
"content": "Maxwell and Hamilton(ion) say it is unstable. All you need is a magnetic monople.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6391145",
"author": "Greg Ga... | 1,760,372,915.341136 | ||
https://hackaday.com/2021/10/15/heres-a-100-mhz-pin-compatible-6502-replacement/ | Here’s A 100 MHz Pin-Compatible 6502 Replacement | Lewin Day | [
"Misc Hacks"
] | [
"6502",
"65c02",
"fpga"
] | The MOS Technology 6502 CPU was a popular part in its day. In various modified versions, it powered everything from the Commodore 64 to the Nintendo Entertainment System, and showed up in a million other applications too. A popular variant is the 65C02, and [Jürgen] decided to whip up a pin-compatible FPGA version
that... | 94 | 20 | [
{
"comment_id": "6390855",
"author": "Ethan Waldo",
"timestamp": "2021-10-15T20:05:40",
"content": "Awesome! Now how do we slow this thing down….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6390908",
"author": "cliff claven",
"timestamp":... | 1,760,372,915.693215 | ||
https://hackaday.com/2021/10/15/hackaday-remoticon-call-for-proposals-extended-to-october-20th/ | Hackaday Remoticon: Call For Proposals Extended To October 20th | Kristina Panos | [
"cons"
] | [
"2021 Hackaday Remoticon",
"call for proposals",
"cfp"
] | In just a few short weeks, we’ll all be meeting up online for the second Hackaday Remoticon on November 19th and 20th. This is the year of the Talk, and who better than you, dear reader, to give one? Good news — we’ve extended the deadline for proposals to Wednesday, October 20th. We’ve all got at least one or two subj... | 0 | 0 | [] | 1,760,372,915.474068 | ||
https://hackaday.com/2021/10/15/electroplating-carbon-fibers-can-have-interesting-results/ | Electroplating Carbon Fibers Can Have Interesting Results | Lewin Day | [
"Misc Hacks"
] | [
"carbon fiber",
"composite",
"composite material"
] | Typically, electroplating is used to put coatings of one metal upon another, often for reasons of corrosion protection or to reduce wear. However, other conductive materials can be electroplated,
as demonstrated by [Michaɫ Baran].
Finer details are sparse, but [Michaɫ’s] images show the basic concept behind producing a... | 17 | 6 | [
{
"comment_id": "6390838",
"author": "Greg Garriss",
"timestamp": "2021-10-15T18:39:41",
"content": "Interesting idea. I worked with metalizing carbon fiber structures in the 80s and 90s at Boeing. Unfortunately most of it was cured epoxy and prepreg. The bare fiber was difficult to get from the man... | 1,760,372,915.52741 | ||
https://hackaday.com/2021/10/15/carbon-sequestration-as-a-service-doesnt-quite-add-up/ | Carbon Sequestration As A Service Doesn’t Quite Add Up | Lewin Day | [
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"carbon dioxide",
"carbon sequestration",
"environment",
"gas",
"greenhouse gas",
"greenhouse gases"
] | Burning fossil fuels releases carbon dioxide into the atmosphere. While most attempts to reduce greenhouse-gas emissions focus on reducing the amount of CO
2
output, there are other alternatives. Carbon capture and sequestration has been an active area of research for quite some time. Being able to take carbon dioxide ... | 128 | 26 | [
{
"comment_id": "6390796",
"author": "Stephen Walters",
"timestamp": "2021-10-15T17:08:03",
"content": "We need this, and we need it NOW.https://www.bbc.com/future/article/20161129-the-colossal-african-solar-farm-that-could-power-europehttps://en.wikipedia.org/wiki/Desertec",
"parent_id": null,
... | 1,760,372,915.869183 | ||
https://hackaday.com/2021/10/15/hackaday-podcast-140-aqua-battery-ibm-cheese-cutter-waiting-for-usb-c-and-digging-adcs/ | Hackaday Podcast 140: Aqua Battery, IBM Cheese Cutter, Waiting For USB-C, And Digging ADCs | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys chew the fat over the coolest of hacks. It’s hard to beat two fascinating old-tech demonstraters; one is a mechanical IBM computer for accurate cheese apportionment, the other an Analog-to-Digital Converter (ADC) built from logic chips. We gawk two very different uses of... | 2 | 1 | [
{
"comment_id": "6390856",
"author": "jonkangas",
"timestamp": "2021-10-15T20:06:20",
"content": "The Spruce Goose managed to have a challenging relationship with ground effect as well.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6391061",
"author... | 1,760,372,915.564836 | ||
https://hackaday.com/2021/10/15/3d-print-a-custom-t-shirt-design-step-by-step/ | 3D Print A Custom T-Shirt Design, Step-by-Step | Donald Papp | [
"3d Printer hacks",
"Art",
"Wearable Hacks"
] | [
"3d printed. t-shirt",
"art",
"custom design",
"fabric",
"iron-on"
] | Want to make a t-shirt with a custom design printed on it? It’s possible to use a 3D printer, and Prusa Research have a well-documented blog post and video detailing
two different ways to use 3D printing to create colorful t-shirt designs
. One method uses a thin 3D print as an iron-on, the other prints directly onto t... | 14 | 5 | [
{
"comment_id": "6390770",
"author": "Harvie.CZ",
"timestamp": "2021-10-15T15:25:51",
"content": "Why not use flexible filaments for iron-on method?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6390790",
"author": "chojciech",
"timestamp": ... | 1,760,372,915.927417 | ||
https://hackaday.com/2021/10/15/this-week-in-security-the-apache-fix-miss-github-malicious-actions-and-shooting-the-messenger/ | This Week In Security: The Apache Fix Miss, Github (Malicious) Actions, And Shooting The Messenger | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"apache",
"Github Actions",
"youtube"
] | Apache 2.4.50 included a fix for CVE-2021-41773. It has since been discovered that
this fix was incomplete
, and this version is vulnerable to a permutation of the same vulnerability. 2.4.51 is now available, and should properly fix the vulnerability.
The original exploit used
.%2e/
as the magic payload, which is using... | 10 | 6 | [
{
"comment_id": "6390798",
"author": "cappie",
"timestamp": "2021-10-15T17:10:09",
"content": "“processing requirements of the entire would using and uploading to YouTube all at once”I think ‘would’ should be ‘world’ in this context..",
"parent_id": null,
"depth": 1,
"replies": [
{... | 1,760,372,915.973116 | ||
https://hackaday.com/2021/10/16/pinetime-smartwatch-and-good-code-play-bad-apple/ | PineTime Smartwatch And Good Code Play Bad Apple | Brian McEvoy | [
"Wearable Hacks"
] | [
"bad apple",
"compression",
"full motion",
"music video",
"oled",
"Pinetime",
"rendering",
"smartwatch",
"video",
"watch",
"wearable"
] | PineTime is the open smartwatch from our friends at Pine64. [TT-392] wanted to prove the hardware can
play a full-motion music video
, and they are correct, to a point. When you watch the video below, you should notice the monochromatic animation maintaining a healthy framerate, and there lies all the hard work. Withou... | 11 | 5 | [
{
"comment_id": "6391117",
"author": "BlackLotus",
"timestamp": "2021-10-16T18:13:53",
"content": "The display isn’t monochromatic though…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6391136",
"author": "Miles",
"timestamp": "2021-10-16T20... | 1,760,372,916.025116 |
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