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https://hackaday.com/2021/06/25/hackaday-podcast-124-hard-drivin-with-graphene-fooled-by-lasers-etching-with-poison-acid-and-all-the-linux-commands/ | Hackaday Podcast 124: Hard Drivin’ With Graphene, Fooled By Lasers, Etching With Poison Acid, And All The Linux Commands | Dan Maloney | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys marvel at the dangerous projects on display this week, including glass etching with hydrofluoric acid and pumping 200,000 A into a 5,000 A fuse. A new board that turns the Raspberry Pi into an SDR shows off the power of the secondary memory interface (SMI) present in tho... | 4 | 2 | [
{
"comment_id": "6359597",
"author": "Dude",
"timestamp": "2021-06-25T21:38:55",
"content": "Don’t apologize for the faker guy. He has other fake videos and the website sells fake electronics education with the videos – it’s a part of a bigger scam.",
"parent_id": null,
"depth": 1,
"repl... | 1,760,373,040.468663 | ||
https://hackaday.com/2021/06/25/game-boy-color-gets-a-rechargeable-battery/ | Game Boy Color Gets A Rechargeable Battery | Lewin Day | [
"Nintendo Hacks"
] | [
"game boy",
"nintendo"
] | Nintendo’s classic Game Boy has long been the darling queen of the handheld scene. However, with many fans modifying their handhelds with power-sucking features like modern backlit LCDs, running on AA batteries can become a frustrating exercise as they rapidly run out.
[esotericsean] gets around that by modifying his G... | 21 | 7 | [
{
"comment_id": "6359516",
"author": "Gareth",
"timestamp": "2021-06-25T16:00:35",
"content": "There’s a lot of my devices that could benefit from this!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6359517",
"author": "Nandru",
"timestamp": "2021-06-... | 1,760,373,040.531184 | ||
https://hackaday.com/2021/06/25/this-week-in-security-schemeflood-modern-wardialing-and-more/ | This Week In Security: Schemeflood, Modern Wardialing, And More! | Jonathan Bennett | [
"computer hacks",
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"%p%s%s%s%s%n",
"My Book Live",
"This Week in Security",
"Windows 11"
] | There’s been yet another technique discovered to fingerprint users, and this one can even work in the Tor browser.
Scheme flooding
works by making calls to application URLs, something like
steam://browsemedia
. If your machine supports the requested custom URL, a pop-up is displayed, asking permission to launch the ext... | 17 | 6 | [
{
"comment_id": "6359496",
"author": "GrizzlyAdams",
"timestamp": "2021-06-25T14:45:15",
"content": "Even better for TOR, run three machines. Your normal daily driver which never touches TOR, your TOR entrance node which only allows TOR traffic to the outside world (and is situated on a DMZ, outside... | 1,760,373,041.069433 | ||
https://hackaday.com/2021/06/25/3d-printed-mecanum-wheels-for-hoverboard-motors/ | 3D Printed Mecanum Wheels For Hoverboard Motors | Tom Nardi | [
"Parts",
"Robots Hacks"
] | [
"hoverboard",
"hoverboard motor",
"mecanum wheels",
"rover"
] | At this point, somebody taking the motors out of a cheap “hoverboard” and using them to power a scooter or remote controlled vehicle isn’t exactly a new idea. But in the case of the FPV rover [Proto G] has been working on, his choice of motors is only part of the story. The real interesting bit is the
3D printed omnidi... | 9 | 4 | [
{
"comment_id": "6359479",
"author": "john",
"timestamp": "2021-06-25T12:55:49",
"content": "Got me wondering where I can get some of those motors to try to make a small windmill.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359484",
"author": "Va... | 1,760,373,040.688035 | ||
https://hackaday.com/2021/06/25/simulating-the-game-boy-printers-actual-paper-output/ | Simulating The Game Boy Printer’s Actual Paper Output | Lewin Day | [
"Nintendo Game Boy Hacks",
"Nook Hacks"
] | [] | Sometimes, we appreciate electronic devices not for their outright performance and crystal clear output, but precisely because they kind of suck in a unique and charming way. The Game Boy Camera, and its companion the Game Boy Printer, are much loved for precisely this reason.
[Raphael BOICHOT] decided that he wanted t... | 7 | 5 | [
{
"comment_id": "6359444",
"author": "John",
"timestamp": "2021-06-25T08:10:16",
"content": "Funny. The Japanese says, “Boobs!” With a poop in the middle.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6359447",
"author": "Gregg Eshelman",
"timestamp":... | 1,760,373,040.57629 | ||
https://hackaday.com/2021/06/24/review-and-teardown-of-economical-programmable-dc-power-supply/ | Review And Teardown Of Economical Programmable DC Power Supply | Donald Papp | [
"Reviews",
"Teardown"
] | [
"power supply",
"programmable power supply",
"review",
"teardown"
] | [Kerry Wong] isn’t afraid to get his hands dirty, and is always more than willing to open things up and see what makes them tick. This time,
he reviews and tears down the Topshak LW-3010EC programmable DC power supply
, first putting the unit through its paces, then opens it up to see how it looks on the inside.
The To... | 14 | 6 | [
{
"comment_id": "6359438",
"author": "rewolff",
"timestamp": "2021-06-25T06:48:43",
"content": "The maximum of “200mA” measured is wrong. First 2V / 100 Ohm is about 20mA not 200mA.Second the 2V is wrong: His scope clipped the signal at the edge of the screen, so AFTER capture, you cannot bring stuf... | 1,760,373,040.895134 | ||
https://hackaday.com/2021/06/24/rocky-linux-is-ready-for-prime-time/ | Rocky Linux Is Ready For Prime Time! | Jonathan Bennett | [
"computer hacks",
"Linux Hacks",
"News"
] | [
"CentOS",
"linux",
"Rocky Linux"
] | For some small percentage of the Hackaday crowd, our world got turned upside down at the end of last year, when Red Hat announced changes to CentOS. That distro is the official repackage of Red Hat Enterprise Linux, providing a free, de-branded version of RHEL. The big problem was that CentOS 8 support has been cut way... | 23 | 9 | [
{
"comment_id": "6359412",
"author": "Gregg Eshelman",
"timestamp": "2021-06-25T02:10:30",
"content": "*Quietly hums the “Rocky” theme music.*https://www.youtube.com/watch?v=DhlPAj38rHc",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359413",
"author... | 1,760,373,040.637921 | ||
https://hackaday.com/2021/06/24/hacked-ac-window-unit-split-in-half-to-cool-the-garage/ | Hacked AC Window Unit Split In Half To Cool The Garage | Tom Nardi | [
"home hacks"
] | [
"air conditioner",
"cooling",
"garage",
"garage door"
] | It’s getting into the hot summer months for those of us in the Northern Hemisphere, and for many Hackaday readers, that means its time to get the old window air conditioner out of storage and lug it back into position. But what if you’re trying to cool a space that doesn’t have a convenient window? In that case, this c... | 34 | 14 | [
{
"comment_id": "6359381",
"author": "Jack",
"timestamp": "2021-06-24T23:25:50",
"content": "It would be even better if he converted the unit into a water chiller, and then the water/glycol cooling loop would be easy to diy into almost any configuration, including multiple fan coils from a single co... | 1,760,373,040.839389 | ||
https://hackaday.com/2021/06/24/fat-tire-bike-turned-hubless/ | Fat Tire Bike Turned Hubless | Danie Conradie | [
"Transportation Hacks"
] | [
"bicycle",
"the q",
"tron"
] | Bicycle wheels have looked pretty much the same for over a century, and for very good reason: It works. [The Q] decided to ignore reason for a bit and focus on looks, so he built a
fat tire bike without any hubs or spokes
.
To make this work, he fabricated two sets of ring shaped “hubs” about the size of the rims, with... | 45 | 20 | [
{
"comment_id": "6359315",
"author": "Morofry",
"timestamp": "2021-06-24T20:15:15",
"content": "Since when has practicality ever been the sole basis for desire?I want one.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359333",
"author": "Foldi-One"... | 1,760,373,041.158499 | ||
https://hackaday.com/2021/06/24/active-ball-joint-uses-spherical-gear/ | Active Ball Joint Uses Spherical Gear | Al Williams | [
"3d Printer hacks",
"Robots Hacks"
] | [
"ABENICS",
"ball joint",
"cross spherical gear",
"spherical gear"
] | A common CAD operation is to take a 2D shape and extrude it into a 3D shape. But what happens if you take a gear and replicate it along a sphere and then rotate it and do it again? As you can see in the video below, you wind up with a porcupine-like ball that you can transfer power to at nearly any angle. There’s
a pap... | 41 | 12 | [
{
"comment_id": "6359281",
"author": "Jim",
"timestamp": "2021-06-24T18:43:58",
"content": "Medical hip replacement merit?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359282",
"author": "Menno",
"timestamp": "2021-06-24T18:47:36",
... | 1,760,373,040.770303 | ||
https://hackaday.com/2021/06/24/iss-gets-roll-out-solar-panels-in-post-shuttle-fix/ | ISS Gets Roll-Out Solar Panels In Post-Shuttle Fix | Tom Nardi | [
"Current Events",
"Hackaday Columns",
"News",
"Slider",
"Space"
] | [
"international space station",
"iss",
"nasa",
"solar array",
"solar power",
"Space Shuttle"
] | Astronauts are currently installing the first of six new solar arrays on the International Space Station (ISS), in a bid to bolster the reduced power generation capability of the original panels which have now been in space for over twenty years. But without the Space Shuttle to haul them into orbit, developing direct ... | 18 | 8 | [
{
"comment_id": "6359286",
"author": "Chris Maple",
"timestamp": "2021-06-24T19:04:13",
"content": "their operational efficiency has dropped considerably with age.How much?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359288",
"author": "Photovolt... | 1,760,373,041.216185 | ||
https://hackaday.com/2021/06/24/mechanically-multiplexed-flip-dot/ | Mechanically Multiplexed Flip-Dot | Danie Conradie | [
"Misc Hacks"
] | [
"3d printed",
"flip dot display",
"james bruton",
"multiplexer",
"servos"
] | Flip dots displays are timeless classics, but driving the large ones can quickly turn into a major challenge. The electromagnets require a lot of current to operate, and the driver circuits can get quite expensive. [James Bruton] wanted to build his own, but followed a bit of a different route, building a
mechanically ... | 11 | 4 | [
{
"comment_id": "6359239",
"author": "nooby",
"timestamp": "2021-06-24T15:45:25",
"content": "Cool! In 1983 they made a color versionhttps://www.youtube.com/watch?v=J-gCBh6rk3M&t=11s",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359252",
"author": ... | 1,760,373,041.630711 | ||
https://hackaday.com/2021/06/23/silicon-jumpers-make-this-wire-free-breadboard-programmable/ | Silicon Jumpers Make This Wire-Free Breadboard Programmable | Dan Maloney | [
"The Hackaday Prize",
"Tool Hacks"
] | [
"2021 Hackaday Prize",
"analog switch",
"breadboard",
"cmos",
"crosspoint",
"jumper",
"solderless"
] | There’s no doubting the utility of the trusty solderless breadboard, but you have to admit they’re less than perfect. They’re not ideal for certain types of circuits, of course, but that’s less of a problem than those jumper wires. The careless will end up with their components hopeless tangled in a rat’s nest of jumpe... | 23 | 12 | [
{
"comment_id": "6358977",
"author": "Green",
"timestamp": "2021-06-23T18:46:42",
"content": "That’s a really cool project. A neat addition would be small screens on each side that diagram what connections are currently made.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,041.4131 | ||
https://hackaday.com/2021/06/23/pipewire-the-newest-audio-kid-on-the-linux-block/ | PipeWire, The Newest Audio Kid On The Linux Block | Jonathan Bennett | [
"computer hacks",
"digital audio hacks",
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"jack",
"linux",
"Pipewire",
"pro audio",
"pulseaudio"
] | Raise your hand if you remember when
PulseAudio
was famous for breaking audio on Linux for everyone. For quite a few years, the standard answer for any audio problem on Linux was to uninstall PulseAudio, and just use
ALSA
. It’s probably the case that a number of distros switched to Pulse before it was quite ready. My ... | 65 | 27 | [
{
"comment_id": "6358947",
"author": "Foldi-One",
"timestamp": "2021-06-23T17:17:30",
"content": "Damn that is cool, I’ve hated pulse ever since I first started trying to get it to behave. It has got better since, but its still a tremendous pain for many many things compared to without it… But it do... | 1,760,373,041.350058 | ||
https://hackaday.com/2021/06/23/big-spinning-disk-makes-a-small-color-video-display/ | Big Spinning Disk Makes A Small Color Video Display | Donald Papp | [
"Arduino Hacks",
"Video Hacks"
] | [
"arduino",
"nipkov disk",
"nipkow disk",
"persistence of vision",
"POV",
"spinning disk"
] | Believe it or not, the Mickey Mouse clip used for this demonstration is actually in the public domain.
The earliest televisions used a spinning disk technology called the Nipkow disk, which is exactly what [Science ‘n’ Stuff] recreated with their
Arduino-based mechanical color television
(video link, also embedded belo... | 6 | 3 | [
{
"comment_id": "6358929",
"author": "Dude",
"timestamp": "2021-06-23T15:54:35",
"content": ">Believe it or notI don’t have to, because it isn’t. The copyright for “Steamboat Willie” expires in 2024 and this is a color clip, so it must be later production which is STILL under copyright for far longe... | 1,760,373,041.680399 | ||
https://hackaday.com/2021/06/23/how-graphene-may-enable-the-next-generations-of-high-density-hard-drives/ | How Graphene May Enable The Next Generations Of High-Density Hard Drives | Maya Posch | [
"Featured",
"News",
"Science",
"Slider"
] | [
"carbon",
"coc",
"graphene",
"hamr",
"hdd",
"magnetic storage"
] | After decades of improvements to hard disk drive (HDD) technology, manufacturers are now close to taking the next big leap that will boost storage density to new levels. Using laser-assisted writes, manufacturers like
Seagate are projecting
50+ TB HDDs by 2026 and 120+ TB HDDs after 2030. One part of the secret recipe ... | 30 | 9 | [
{
"comment_id": "6358934",
"author": "Gareth",
"timestamp": "2021-06-23T16:01:54",
"content": "Spinning disks. How… quaint.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358993",
"author": "Eric Chapin",
"timestamp": "2021-06-23T19:37:26",
... | 1,760,373,041.753304 | ||
https://hackaday.com/2021/06/23/test-your-blue-pill-board-for-a-genuine-stm32f103c8-mcu/ | Test Your ‘Blue Pill’ Board For A Genuine STM32F103C8 MCU | Maya Posch | [
"Microcontrollers"
] | [
"blue pill",
"stm32"
] | With the market for STM32F103C8-based ‘Blue Pill’ boards slowly being overrun with boards that contain either a cloned, fake or outright broken chip, [Terry Porter] really wanted to have an easy, automated way to quickly detect whether a new board contains genuine STM32 silicon, or some fake that tries to look the part... | 39 | 10 | [
{
"comment_id": "6358883",
"author": "Gravis",
"timestamp": "2021-06-23T12:00:26",
"content": "The real question is if this will result in better boards or better fakes.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358886",
"author": "helge",
... | 1,760,373,041.582964 | ||
https://hackaday.com/2021/06/23/the-compromises-of-raspberry-pi-hardware-documentation/ | The Compromises Of Raspberry Pi Hardware Documentation | Maya Posch | [
"News",
"Raspberry Pi"
] | [
"open hardware",
"open source software",
"raspberry pi"
] | [Rowan Patterson] informed us about a recent ticket he opened over at the Raspberry Pi Documentation GitHub repository. He asked about the
the lack of updates
to the Raspberry Pi 4’s USB-C power schematics for this board. You may recall that the USB-C power issue was
covered by us
back in July of 2019, yet the current ... | 86 | 13 | [
{
"comment_id": "6358828",
"author": "John",
"timestamp": "2021-06-23T08:47:01",
"content": "In my opinion, the raspberry pi foundation is unconcerned with anything beyond getting a product out the door. Their advertising is not true in all markets, and they refuse to address false advertising. Avoi... | 1,760,373,041.872031 | ||
https://hackaday.com/2021/06/22/modifying-a-snes-rom-to-be-widescreen/ | Modifying A SNES Rom To Be Widescreen | Matthew Carlson | [
"Games",
"home entertainment hacks",
"Nintendo Hacks"
] | [
"emulator",
"nintendo",
"ROM hack",
"snes",
"super mario world",
"widescreen"
] | Turning a game like
Super Mario World for SNES into a widescreen game
is not a small task, but [Vitor Vilela] accomplished just that. [Vitor] has a long list of incredible patches such as optimizing code for better frame rates and adding code to take advantage of the
SA-1 accelerator chip
, so out of anyone he has the ... | 7 | 6 | [
{
"comment_id": "6358818",
"author": "Laserbeak43",
"timestamp": "2021-06-23T07:05:30",
"content": "I’ve always daydreamed of doing something like this for the nes. Thanks!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6358823",
"author": "Iván Stepaniuk"... | 1,760,373,041.917997 | ||
https://hackaday.com/2021/06/24/you-cant-put-the-toothpaste-back-in-the-tube-but-it-used-to-be-easier/ | You Can’t Put The Toothpaste Back In The Tube, But It Used To Be Easier | Kristina Panos | [
"Featured",
"green hacks",
"History",
"News",
"Original Art",
"Slider"
] | [
"aluminium",
"aluminum",
"get the lead out",
"glass jar",
"lead",
"toothpaste",
"toothpaste tubes"
] | After five years of research,
Colgate-Palmolive recently revealed Australia’s first recyclable toothpaste tube
. Why is this exciting? They are eager to share the design with the rest of the toothpaste manufacturers and other tube-related industries in an effort to reduce the volume of plastic that ends up in landfills... | 60 | 16 | [
{
"comment_id": "6359222",
"author": "doobie",
"timestamp": "2021-06-24T14:11:18",
"content": "Sure you can put toothpaste back in a tube. I have one I bought years ago that you can refill for camping trips. It has two caps. One in the front where you put out your toothpaste into your brush. And ... | 1,760,373,042.163131 | ||
https://hackaday.com/2021/06/24/a-pi-usb-webcam-that-was-born-to-boot-quick/ | A Pi USB Webcam That Was Born To Boot Quick | Sonya Vasquez | [
"Raspberry Pi"
] | [] | In the age of business Zoom rooms, having a crisp webcam is key for introducing fellow executives to your pet cat. Unfortunately, quality webcams are out of stock and building your own is out of the question. Or is it? [Dave Hunt] thought otherwise and cooked up the idea of using the Raspberry Pi’s USB on-the-go mode t... | 16 | 7 | [
{
"comment_id": "6359176",
"author": "Pax",
"timestamp": "2021-06-24T11:26:34",
"content": "<1sec and <128kb should be possible with bare metal bootcode.bin.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359242",
"author": "Adam",
"timestam... | 1,760,373,041.969331 | ||
https://hackaday.com/2021/06/24/breaking-down-the-usb-keyboard-interface-with-old-fashioned-pen-and-paper/ | Breaking Down The USB Keyboard Interface With Old-Fashioned Pen And Paper | Stephen Ogier | [
"Peripherals Hacks"
] | [
"HID usb",
"keyboard",
"reverse engineering",
"usb",
"usb hid",
"usb keyboard"
] | What is better for gaming, old PS/2 style keyboards, or modern USB devices? [Ben Eater] sets out to answer this question, but along the way
he ends up breaking down the entire USB keyboard interface.
It turns out that PS/2 and USB are very, very different. A PS/2 keyboard sends your keystroke every time you press a key... | 37 | 8 | [
{
"comment_id": "6359131",
"author": "deshipu",
"timestamp": "2021-06-24T08:12:34",
"content": "> even a much nicer keyboard that uses the faster full-speed USB protocol is still only just about as fast as PS/2.Humans are only so fast, so it doesn’t make sense to make keyboards faster. The USB HID p... | 1,760,373,042.055618 | ||
https://hackaday.com/2021/06/23/gorgeous-specimen-is-the-final-word-in-word-clocks/ | Gorgeous Specimen Is The Final Word In Word Clocks | Tom Nardi | [
"clock hacks",
"Raspberry Pi"
] | [
"python",
"RGB LED",
"word clock",
"ws2812"
] | At this point, it’s safe to say that word clocks aren’t quite as exciting as they once were. We’ve seen versions that boil the concept down to what amounts to a parts bin build, which for better or for worse, takes a lot of the magic out of it. You just get an array of LEDs, put some letters in front of it, write some ... | 14 | 5 | [
{
"comment_id": "6359119",
"author": "CRJEEA",
"timestamp": "2021-06-24T06:53:21",
"content": "I really like how much thought has gone into the backlight of this. The backlight feels like a project in its own right, even without the word clock itself.The fact that it doesn’t just illuminate a segmen... | 1,760,373,042.220001 | ||
https://hackaday.com/2021/06/23/spectrum-display-uses-tiny-cpu-and-many-leds/ | Spectrum Display Uses Tiny CPU And Many LEDs | Al Williams | [
"Arduino Hacks",
"ATtiny Hacks"
] | [
"attiny85",
"fft",
"led matrix",
"shift register",
"spectrum analyzier",
"TPIC6B595"
] | You would think the hard part about creating a
spectrum analyzer
using a pint-sized ATTiny85 would be the software. But for [tuenhidiy], we suspect the hard part was fabricating an array of 320 LEDs that the little processor can drive. The design does work though, as you can see in the video below.
The key is to use a ... | 1 | 1 | [
{
"comment_id": "6360156",
"author": "Nick",
"timestamp": "2021-06-28T12:43:32",
"content": "This is amazing. On an ATTiny85!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,042.407422 | ||
https://hackaday.com/2021/06/23/john-mcafees-wild-ride-is-over/ | John McAfee’s Wild Ride Is Over | Dan Maloney | [
"News"
] | [
"antivirus",
"McAfee",
"news",
"obituary",
"suicide"
] | John McAfee, the founder of McAfee Associates and pioneer in the antivirus field,
was found dead today, June 23, 2021, of an apparent suicide
in a Barcelona prison cell.
Born in 1945, the term “colorful” doesn’t begin to describe the life of McAfee. His entree into the nascent computer industry began with a degree in m... | 53 | 24 | [
{
"comment_id": "6359048",
"author": "Johan",
"timestamp": "2021-06-23T23:39:25",
"content": "The man was a legend, and an example (sometimes a bad one) to many. I for one will miss his antics. Btw, in October of 2020 he announced that if he was ever found dead in his cell it was involuntary.",
... | 1,760,373,042.36875 | ||
https://hackaday.com/2021/06/23/piezo-pickup-makes-wax-records-easy-to-digitize/ | Piezo Pickup Makes Wax Records Easy To Digitize | Dan Maloney | [
"Misc Hacks"
] | [
"acoustic",
"audacity",
"edison",
"phonograph",
"piezo",
"shunt",
"wax"
] | Sound recording and playback have come a long way in the last century or so, but it’s fair to say there’s still a lot of interesting stuff locked away on old recordings. Not having a way to play it back is partly to blame; finding an antique phonograph that plays old-timey cylinder recordings is pretty hard. But even t... | 27 | 8 | [
{
"comment_id": "6359016",
"author": "Garth Bock",
"timestamp": "2021-06-23T20:44:31",
"content": "This is awesome ! I have in my DJ library a collection of wax cylinder recordings. They were obviously made with the microphone in the horn method. There is so much history that can be saved by convert... | 1,760,373,042.284418 | ||
https://hackaday.com/2021/06/22/steady-hand-brings-gba-cart-back-from-the-grave/ | Steady Hand Brings GBA Cart Back From The Grave | Tom Nardi | [
"Nintendo Game Boy Hacks",
"Repair Hacks"
] | [
"game boy advance",
"gba",
"PCB repair",
"repair"
] | The flash chips used in Game Boy Advance (GBA) cartridges were intended to be more reliable and less bulky than the battery-backed SRAM used to save player progress on earlier systems. But with some GBA titles now hitting their 20th anniversary, it’s not unheard of for older carts to have trouble loading saves or creat... | 15 | 4 | [
{
"comment_id": "6358615",
"author": "John",
"timestamp": "2021-06-22T11:30:28",
"content": "I’ve repaired a number of pc engines that have been previously reworked. They’re not too bad, but this process can always take more time than it’s really worth.",
"parent_id": null,
"depth": 1,
"... | 1,760,373,042.529518 | ||
https://hackaday.com/2021/06/22/good-enough-for-the-spruce-goose-good-enough-for-satellites/ | Good Enough For The Spruce Goose, Good Enough For Satellites | Al Williams | [
"Space"
] | [
"ESA",
"WISA",
"wood",
"wooden",
"wooden satellite",
"woodsat"
] | Wood products have a long history in aviation even though modern materials have eclipsed them in many areas. But lately we’ve noticed several plywood satellites, including
this one the ESA plans to launch
. The WISA Woodsat is a test of WISA plywood, a particular brand made in Finland to show how it can withstand the o... | 31 | 11 | [
{
"comment_id": "6358581",
"author": "Glen Searle (@GenesisMachines)",
"timestamp": "2021-06-22T08:10:14",
"content": "One of the requirements for a cubesat launch is that you can’t be a contamination risk to your neighbours in the cubesat launch bay. One man’s minor out-gassing is another’s fogged ... | 1,760,373,042.904029 | ||
https://hackaday.com/2021/06/21/see-acorn-archimedes-get-repaired-and-refurbished-in-glorious-detail/ | See Acorn Archimedes Get Repaired And Refurbished, In Glorious Detail | Donald Papp | [
"Repair Hacks",
"Retrocomputing"
] | [
"1990s",
"acorn archimedes",
"refurbish",
"retrocomputing",
"vintage"
] | Want to see a 90s-era Acorn Archimedes A3020 home computer get opened up, refurbished, and taken for a test drive?
Don’t miss [drygol]’s great writeup on Retrohax
, because it’s got all that, and more!
A modern upgrade allowing the use of a CF card in place of an internal hard drive, via a CF2IDE adapter and 3D-printed... | 3 | 3 | [
{
"comment_id": "6358594",
"author": "Jonah",
"timestamp": "2021-06-22T09:28:57",
"content": "Very cool! I love to see these kind of posts on Hackaday. Really cool to see this retro tech being updated and refurbished.:)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment... | 1,760,373,042.834094 | ||
https://hackaday.com/2021/06/21/a-collection-of-linux-tools-on-steroids/ | A Collection Of Linux Tools On Steroids | Al Williams | [
"Linux Hacks"
] | [
"cli",
"command line",
"linux"
] | Sometimes we do things because “that’s the way we’ve always done them.” Screws, for example, had slotted heads in the 1500s and slotted heads are notoriously bad, but despite Robertson in 1907 and Phillips in the 1930s, it took decades for slotted screw heads to become uncommon and they still lurk in a few areas. Many ... | 75 | 24 | [
{
"comment_id": "6358543",
"author": "Reg",
"timestamp": "2021-06-22T02:45:23",
"content": "As an old Unix guy who absolutely hates colored text. I can only laugh. It’s the first thing I disable if the system does that. I use bold black on white.Why? Because the focal distance for the human eye ... | 1,760,373,042.787352 | ||
https://hackaday.com/2021/06/21/vga-from-scratch-on-a-homebrew-8-bit-computer/ | VGA From Scratch On A Homebrew 8-bit Computer | Bryan Cockfield | [
"Video Hacks"
] | [
"8 bit",
"homebrew",
"latch",
"retro",
"scratch",
"ttl",
"vga",
"video"
] | [James Sharman] has built an impressive 8-bit homebrew computer. Based on TTL logic chips, it has a pipelined design which makes it capable of Commodore-level computing, but [James] hasn’t quite finished everything yet. While it is currently built on its own custom PCB, it has a limiting LCD display which isn’t up to t... | 9 | 4 | [
{
"comment_id": "6358536",
"author": "Garth Bock",
"timestamp": "2021-06-22T02:05:27",
"content": "Excellent project ! Reminiscent of probably how early computer started out…. in a basement or garage. (I love all the blinken lights…. er I mean status lights).",
"parent_id": null,
"depth": 1,... | 1,760,373,042.676805 | ||
https://hackaday.com/2021/06/21/forget-smart-watch-build-a-smart-hat/ | Forget Smart Watch; Build A Smart Hat | Al Williams | [
"Arduino Hacks",
"Wearable Hacks"
] | [
"arduino",
"hat",
"wearable"
] | Smart watches are pretty common today, but how many people do you know with a smart hat? [Oliver] built
Wilson
which he bills as “the IoT hat.” We wonder if the name was inspired by the Home Improvement character of the same name who only appeared as a hat above the fence line. You can see a video of the project, below... | 4 | 3 | [
{
"comment_id": "6358514",
"author": "Richard collins",
"timestamp": "2021-06-21T21:42:04",
"content": "Nice work. Here is mine I built some time ago based on the Adafruit project. I wrote my own app. Sorry video is short. My hat is flat so needs recharging. :Dhttps://youtu.be/GCGQUNvn4CQhttps://you... | 1,760,373,042.943926 | ||
https://hackaday.com/2021/06/21/a-laser-display-board-of-your-very-own/ | Fake: A Laser Display Board Of Your Very Own | Jenny List | [
"Laser Hacks"
] | [
"laser",
"laser display",
"real or fake",
"vector display"
] | Update 6/23/21:
Many people have called this out as fake. When viewed at 1/4 speed, you can see the logos in the YouTube video are always full-off or full-on and never caught mid way through a scanned frame. The images may be projected from off-camera to the left, rather than by the diode behind the screen. It’s a neat... | 64 | 28 | [
{
"comment_id": "6358443",
"author": "jose7380",
"timestamp": "2021-06-21T18:44:12",
"content": "Why don´t you use the spining pentagonal mirror, like barcode readers do???",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358450",
"author": "jonmayo",... | 1,760,373,043.26938 | ||
https://hackaday.com/2021/06/20/arduino-nano-memory-upgrade-with-no-soldering/ | Arduino Nano Memory Upgrade With No Soldering | Al Williams | [
"Arduino Hacks",
"Software Hacks"
] | [
"arduino",
"arduino nano",
"optiboot"
] | Ok, we’ll come clean. [Design Build Destroy] didn’t really add any memory to his Arduino Nano. But he did get about 1.5K more program space when compared to the stock setup. The trick? On some Nano boards and clones, the bootloader is set to use a large block of reserved memory, but Optiboot only requires a fraction of... | 20 | 13 | [
{
"comment_id": "6358257",
"author": "Ted Themistokleous",
"timestamp": "2021-06-21T02:37:21",
"content": "Neat! More memory is always better!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358375",
"author": "Gravis",
"timestamp": "2021-06-... | 1,760,373,043.001902 | ||
https://hackaday.com/2021/06/20/hackaday-links-june-20-2021/ | Hackaday Links: June 20, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"hackaday links"
] | The hits just keep coming for Elon Musk, as this week
Starlink users reported their new satellite dishes apparently can’t take the heat
. Granted, the places these reports are coming from are really, really hot, like Topock, Arizona, where one Starlink beta tester is located and where the air temperature is expected to... | 15 | 5 | [
{
"comment_id": "6358232",
"author": "Hirudinea",
"timestamp": "2021-06-20T23:30:29",
"content": "50C!? Screw the dish, I don’t operate in that temperature! So what about putting some big ass copper cooling fins on it? (Until the copper thieves steal it.)",
"parent_id": null,
"depth": 1,
... | 1,760,373,043.055059 | ||
https://hackaday.com/2021/06/20/raspberry-pi-hat-adds-sdr-with-high-speed-memory-access/ | Raspberry Pi Hat Adds SDR With High Speed Memory Access | Al Williams | [
"Radio Hacks",
"Raspberry Pi"
] | [
"caribou",
"cariboulite",
"raspberry pi",
"sdr",
"Secondary Memory Interface",
"SMI",
"software-defined radio"
] | An SDR add-on for the Raspberry Pi isn’t a new idea, but the open source
cariboulite project looks like a great entry into the field
. Even if you aren’t interested in radio, you might find the project’s use of a special high-bandwidth memory interface to the Pi interesting.
The interface in question is the poorly-docu... | 57 | 12 | [
{
"comment_id": "6358207",
"author": "julian martinez",
"timestamp": "2021-06-20T20:09:36",
"content": "the links for smi explanation and github repo are broken…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358209",
"author": "julian martinez",
... | 1,760,373,043.166852 | ||
https://hackaday.com/2021/06/20/tiny-tesla-valves-etched-in-glass/ | Tiny Tesla Valves Etched In Glass | Bryan Cockfield | [
"chemistry hacks",
"Science"
] | [
"acid",
"etch",
"glass",
"huygens optics",
"laser",
"small",
"Tesla valve"
] | While it’s in vogue right now to name fancy new technology after Tesla, the actual inventor had plenty of his own creations that would come to bear his namesake, including Tesla coils, Tesla oscillators, Tesla turbines and even the infamous Tesla tower. One of the lesser known inventions of his is the Tesla valve, a ch... | 8 | 3 | [
{
"comment_id": "6358183",
"author": "Ostracus",
"timestamp": "2021-06-20T17:52:02",
"content": "I could see this as part of a lab-on-a-chip.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358211",
"author": "Paul",
"timestamp": "2021-06-20T... | 1,760,373,043.315583 | ||
https://hackaday.com/2021/06/20/19-coils-make-charging-wireless/ | 19 Coils Make Charging Wireless | Al Williams | [
"Teardown"
] | [
"wireless charger",
"wireless charging",
"xiaomi"
] | Wireless charging is conceptually simple. Two coils form an
ad hoc
transformer with the primary in the charger and the secondary in the charging device. However, if you’ve ever had a wireless charging device, you know that reality can be a bit more challenging since the device must be positioned just so on the charger.... | 57 | 15 | [
{
"comment_id": "6358136",
"author": "socksbot",
"timestamp": "2021-06-20T14:19:38",
"content": "Even the product name on the box is “Multi-coil wireless fast charging board”.It’s a pretty complex design and the PCB inspection is thorough enough to give you an idea of its capabilities, but I can’t b... | 1,760,373,043.565856 | ||
https://hackaday.com/2021/06/20/compact-mm-sorter-goes-anywhere/ | Compact M&M Sorter Goes Anywhere | Kristina Panos | [
"Arduino Hacks"
] | [
"arduino",
"CdS cell",
"light dependent resistor",
"M&M sorter",
"photocell",
"RGB LED",
"servo",
"stepper motor"
] | Let’s face it — eating different colored candy like M&Ms or Skittles is just a little more fun if you sort your pile by color first. The not-fun part is having to do it by hand. [Jackofalltrades_] decided to tackle this time-worn problem for engineering class because it’s awesome and it satisfies the project’s requirem... | 12 | 8 | [
{
"comment_id": "6358110",
"author": "Iván Stepaniuk",
"timestamp": "2021-06-20T11:14:55",
"content": "Reminds me of the famous “M&M’s (WARNING: ABSOLUTELY NO BROWN ONES)” clause on Van Halen’s contract.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358135... | 1,760,373,043.756861 | ||
https://hackaday.com/2021/06/20/a-mini-usb-display-for-your-pc-desktop/ | A Mini USB Display For Your PC Desktop | Jenny List | [
"computer hacks",
"Microcontrollers"
] | [
"display",
"lcd",
"usb display"
] | By now it’s likely that most Hackaday readers will be used to USB display adapters, in their most common form channeling DisplayPort over the ubiquitous serial interface. Connecting to projectors and other screens with a laptop becomes a breeze, and gone are the days of “Will my laptop work in the venue” stress for peo... | 22 | 8 | [
{
"comment_id": "6358098",
"author": "CampGareth",
"timestamp": "2021-06-20T08:27:05",
"content": "Transferring screenshots over USB is a sort of homebrew version of DisplayLink. I’d look at that for any potential improvements.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,043.450296 | ||
https://hackaday.com/2021/06/21/keebin-with-kristina-the-one-with-the-chinese-typewriter/ | Keebin’ With Kristina: The One With The Chinese Typewriter | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Slider"
] | [
"cables",
"KBD news",
"Kinesis",
"Kinesis Advantage",
"Lois Lew",
"macro pad",
"ZAP! cables"
] | As much as I’d like to devote an article to each and every bit of keyboard-related what-have-you that I come across in my travels through the intertubes, there just aren’t enough hours. And after all, this isn’t Clack-a-Day. To that end, I gained editorial approval to bring you a periodic round-up of news and other tid... | 12 | 9 | [
{
"comment_id": "6358423",
"author": "dovenyi",
"timestamp": "2021-06-21T17:23:05",
"content": "Thanks for featuring the Digest!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6358424",
"author": "Ken",
"timestamp": "2021-06-21T17:34:24",
"content"... | 1,760,373,044.283344 | ||
https://hackaday.com/2021/06/21/microscopy-hack-chat-with-zachary-tong/ | Microscopy Hack Chat With Zachary Tong | Dan Maloney | [
"Hackaday Columns"
] | [
"atomic force",
"confocal",
"electron microscope",
"Hack Chat",
"micron",
"microscope",
"microscopy"
] | Join us on Wednesday, June 23 at noon Pacific for the
Microscopy Hack Chat
with
Zachary Tong
!
There was a time when electronics was very much a hobby that existed in the macroscopic world. Vacuum tubes, wire-wound resistors, and big capacitors were all mounted on terminal strips and mounted in a heavy chassis or enclo... | 0 | 0 | [] | 1,760,373,043.601593 | ||
https://hackaday.com/2021/06/21/raspberry-pi-floppy-driver-uncovers-fishy-secrets/ | Raspberry Pi Floppy Driver Uncovers Fishy Secrets | Chris Lott | [
"Raspberry Pi",
"Retrocomputing"
] | [
"fdc",
"file systems",
"floppy disk",
"floppy disk controller",
"floppy formats",
"raspberry pi"
] | A forum post by New Zealand electronics enthusiast [zl2wrw]
about retreiving waypoints from a mysterious floppy disk caught our eye. The navigation system on his friend’s fishing boat had died and was replaced. But the old waypoints were stored on a 3-1/2 inch floppy disk that was unreadable on a normal PC. Not to be d... | 13 | 5 | [
{
"comment_id": "6358387",
"author": "Jerry",
"timestamp": "2021-06-21T15:05:17",
"content": "Sweet. Bookmarked..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6358421",
"author": "k-ww",
"timestamp": "2021-06-21T17:14:25",
"content": "I worked ab... | 1,760,373,043.803707 | ||
https://hackaday.com/2021/06/21/review-inkplate-6plus/ | Review: Inkplate 6PLUS | Tom Nardi | [
"Featured",
"Kindle hacks",
"Microcontrollers",
"Reviews",
"Slider"
] | [
"development board",
"e-ink",
"e-paper",
"e-reader",
"e-waste recycling",
"electronic paper",
"ESP32",
"kindle"
] | While the price of electronic paper has dropped considerably over the last few years, it’s still relatively expensive when compared to more traditional display technology. Accordingly, we’ve seen a lot of interest in recovering the e-paper displays used in electronic shelf labels and consumer e-readers from the likes o... | 13 | 6 | [
{
"comment_id": "6358381",
"author": "dings",
"timestamp": "2021-06-21T14:36:11",
"content": "Could be interesting if it was available without the Display.(Kindles with broken USB port are quite cheap)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358395",... | 1,760,373,043.865258 | ||
https://hackaday.com/2021/06/21/rf-burns-and-exploding-pc-speakers-sophos-looks-at-the-evidence/ | RF Burns And Exploding PC Speakers: Sophos Looks At The Evidence | Jenny List | [
"classic hacks",
"computer hacks"
] | [
"kernel driver",
"LKML",
"PC speaker"
] | Every year in the month of June, someone by the unlikely name of [R.F. Burns] posts a question to the Linux Kernel Mailing List asking whether a Linux kernel module is possible that would blow the PC speaker. It’s fairly obviously a joke, which is why the UK-based anti-virus company Sophos
have devoted a light-hearted ... | 24 | 17 | [
{
"comment_id": "6358344",
"author": "Markus",
"timestamp": "2021-06-21T11:31:02",
"content": "I once blew a speaker literally using a MiniCrescendo (elektor reading folks know what that was – Japanese Mosfets hardly to be obtained) with 40 Vpp and a looot of Amps floating on a 50Hz hum (fuses are f... | 1,760,373,044.043086 | ||
https://hackaday.com/2021/06/21/even-with-ac-hazmat-suit-isnt-really-cool/ | Even With AC, Hazmat Suit Isn’t Really Cool | Al Williams | [
"Misc Hacks"
] | [
"air conditioning",
"cooling suit",
"hazmat",
"suit"
] | We’ll admit that the coolness factor of an air conditioned faux spacesuit made out of a hazmat suit will largely depend on where you wear it. At your next chess club meeting, maybe a hit. On a blind date, probably not. [Saveitforparts] apparently doesn’t mind and the combination of very warm weather and the donation of... | 30 | 14 | [
{
"comment_id": "6358301",
"author": "Alice Lalita Heald",
"timestamp": "2021-06-21T08:21:50",
"content": "Peltier pls",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358377",
"author": "Gravis",
"timestamp": "2021-06-21T14:20:29",
"c... | 1,760,373,043.982705 | ||
https://hackaday.com/2021/06/20/rock-a-bye-baby-on-the-mechatronic-crib-shaker/ | Rock-A-Bye Baby, On The Mechatronic Crib Shaker | Dan Maloney | [
"Lifehacks",
"Misc Hacks"
] | [
"bed",
"Child",
"crib",
"infant",
"lead screw",
"mechatronics",
"parent",
"recirculating ball",
"sleep",
"stepper",
"toddler"
] | While an engineering mindset is a valuable tool most of the time, there are some situations where it just seems to be a bad fit. Solving problems within the family unit would seem to be one such area, but then again,
this self-rocking mechatronic crib
seems to be just the cure for sleepytime woes.
From the look of [Pet... | 13 | 8 | [
{
"comment_id": "6358271",
"author": "Mac",
"timestamp": "2021-06-21T05:32:52",
"content": "I think mine was easier…. :/)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6358294",
"author": "Dad of self swinging babies",
"timestamp": "2021-06-21T07:35:2... | 1,760,373,043.920022 | ||
https://hackaday.com/2021/06/22/print-your-own-flexures/ | Print Your Own Flexures | Chris Lott | [
"3d Printer hacks"
] | [
"3d printing",
"flexures",
"living hinge"
] | Game developer and eternal learner [David Tucker] just
posted a project
where he’s making linear flexures on a 3D printer. Tinkerer [Tucker] wanted something that would be rigid in five of the six degrees of freedom, but would provide linear motion along one axis. In this case, it is for a pen or knife on a CNC flatbed... | 12 | 6 | [
{
"comment_id": "6358791",
"author": "irox",
"timestamp": "2021-06-23T03:07:32",
"content": "One of my favorite constant force compliant mechanisms:https://www.thingiverse.com/thing:4624094If you want to dive deep into compliant mechanisms checkout “The FACTs of Mechanical Design” youtube channel:ht... | 1,760,373,044.178313 | ||
https://hackaday.com/2021/06/22/flexible-prototyping-for-e-textiles-that-doesnt-cost-an-arm-and-a-leg/ | Flexible Prototyping For E-Textiles That Doesn’t Cost An Arm And A Leg | Kristina Panos | [
"how-to",
"Wearable Hacks"
] | [
"acrylic",
"conductive thread",
"magnets",
"prototyping",
"velcro"
] | Let’s face it: pretty much everything about e-textiles is fiddly. If wearables were easy, more people would probably work in that space. But whereas most circuit prototyping is done in two dimensions, the prototyping of wearables requires thinking and planning in 3D. On top of that, you have to figure out how much cond... | 3 | 3 | [
{
"comment_id": "6358808",
"author": "John",
"timestamp": "2021-06-23T06:20:58",
"content": "Those are some good ideas! I also really like the idea of using magnets to hold the conductive thread to the IO on the Lilypad. I’m going to have to pull out my Lilypad and try that out. Thanks for the tips!... | 1,760,373,044.22151 | ||
https://hackaday.com/2021/06/22/doom-comes-to-the-nrf5340/ | DOOM Comes To The NRF5340 | Tom Nardi | [
"Microcontrollers",
"Software Hacks"
] | [
"bluetooth",
"doom",
"nordic",
"nrf",
"nRF5340"
] | If you’re looking for a reminder of how powerful the tiny microcontrollers that run our everyday gadgets have become, check out the work impressive work
[Audun Wilhelmsen] has done to get DOOM running on the Nordic Semiconductor nRF5340
. This is the sort of Bluetooth SoC you’d expect to find in a headset or wireless k... | 14 | 2 | [
{
"comment_id": "6358737",
"author": "dmitry Grinberg",
"timestamp": "2021-06-22T20:55:23",
"content": "Article lost me at this nonsense: <>C-M33 is Little endian. stopped reading there",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358739",
"author... | 1,760,373,045.309177 | ||
https://hackaday.com/2021/06/22/pi-pico-powered-atx-motherboard/ | Pi Pico-Powered ATX Motherboard | Chris Lott | [
"Retrocomputing",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"Micro-ATX",
"Paspberry Pi Pico",
"retro computer",
"rp2040"
] | For a couple of years, embedded developer and Rust addict [Jonathan Pallant] aka [theJPster] has been working on a
simple computer which he calls the Neotron
. The idea is to
make a computer that is not only easy to use but easy to understand
as well. He describes it as a CP/M- or DOS-like operating system for small AR... | 18 | 9 | [
{
"comment_id": "6358710",
"author": "retger",
"timestamp": "2021-06-22T19:02:12",
"content": "Why only one cpu?why not 3 or 7? please 2 fpga, 2 smal signal cpu and meybe 2 differe archetecture",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6358742",
... | 1,760,373,047.071558 | ||
https://hackaday.com/2021/06/22/human-google-ruth-freitag-issac-asimov-and-bibliographies/ | Human Google: Ruth Freitag, Isaac Asimov, And Bibliographies | Al Williams | [
"Biography",
"Featured",
"History",
"Original Art",
"Slider"
] | [
"bibliography",
"librarian",
"library of congress",
"profiles in science",
"reference librarian",
"ruth freitag"
] | You don’t often turn on a light and think, “That power company is sure on the ball!” You generally only think of them when the lights go out without warning. I think the same is true of search. You don’t use Google or DuckDuckGo or any of the other search engines and think “Wow! How awesome it is to have this much info... | 32 | 14 | [
{
"comment_id": "6358676",
"author": "Mark S.",
"timestamp": "2021-06-22T17:05:04",
"content": "pssttt… Asimov’s first name is Isaac and not Issac. You might want to give Google a try some time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6358678",
"aut... | 1,760,373,047.191312 | ||
https://hackaday.com/2021/06/22/heatsink-makes-vr-even-cooler/ | Heatsink Makes VR Even Cooler | Al Williams | [
"Virtual Reality"
] | [
"virtual reality",
"vr",
"vr headset"
] | Our first thought was that having big fins coming out of your VR goggles might not look very cool. But then we realized if you are wearing VR goggles, that’s probably not your biggest concern. (Ba-doom, tss.) Seriously, though, high-intensity graphics can cause your phone or device to get pretty toasty up there pressed... | 12 | 6 | [
{
"comment_id": "6358660",
"author": "voidnill",
"timestamp": "2021-06-22T16:00:17",
"content": "I love it when some projects solve a problem in a very simple way. It doesn’t look so bad that it would interfere with the design of the VR goggles.",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,373,046.959699 | ||
https://hackaday.com/2021/06/22/teardown-franz-crystal-metronome/ | Teardown: Franz Crystal Metronome | Tom Nardi | [
"Hackaday Columns",
"Musical Hacks",
"Slider",
"Teardown"
] | [
"4-bit",
"metronome",
"microcontroller",
"oscillator",
"vintage hardware"
] | I wish I could tell you that there’s some complex decision tree at play when I select a piece of hardware to take apart for this series, but ultimately it boils down two just two factors: either the gadget was something I was personally interested in, or it was cheap. An ideal candidate would check both boxes, but that... | 16 | 11 | [
{
"comment_id": "6358642",
"author": "cliff claven",
"timestamp": "2021-06-22T14:28:32",
"content": "Good to see that another one of these is kept ticking along",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6358644",
"author": "Ryan B Erickson",
"time... | 1,760,373,047.016746 | ||
https://hackaday.com/2021/06/19/is-it-a-plasma-tweeter-or-a-singing-tesla-coil/ | Is It A Plasma Tweeter Or A Singing Tesla Coil? | Jenny List | [
"home entertainment hacks"
] | [
"plasma tweeter",
"tesla coil",
"tweeter"
] | When our ears resolve spatial information, we do so at the higher treble frequencies rather than the bass. Thus when setting up your home cinema you can put the subwoofer almost anywhere, but the main speakers have to project a good image. The theoretical perfect tweeter for spatial audio is a zero mass point source, s... | 6 | 3 | [
{
"comment_id": "6357911",
"author": "mrehorst",
"timestamp": "2021-06-19T09:44:23",
"content": "One of the many problems with plasma tweeters is that the flame produces a continuous noise that gets mixed with the music. It’s hard to tell in this video because it seems like there’s a fan running in ... | 1,760,373,047.305978 | ||
https://hackaday.com/2021/06/18/a-model-of-dry-humor/ | A Model Of Dry Humor | Brian McEvoy | [
"home hacks",
"how-to"
] | [
"brown and sticky",
"craft",
"DK",
"donkey kong",
"fun",
"game",
"humor",
"model",
"n64",
"scale",
"treehouse"
] | If you want to see a glorious combination of model bananas in a treehouse mixed with a lot of tongue-in-cheek humor, you will appreciate
[Studson]’s build video
. Video also after the break. He is making an homage to Donkey Kong 64 from 1999, which may be a long time ago for some folks’ memory (Expansion Pak). Grab a p... | 5 | 4 | [
{
"comment_id": "6357893",
"author": "Jan",
"timestamp": "2021-06-19T06:44:15",
"content": "cool build, funny vid, interesting tips and the end result looks awesome!Thanks for posting",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6357905",
"author": "then... | 1,760,373,046.858659 | ||
https://hackaday.com/2021/06/18/3d-printing-food-university-style/ | 3D Printing Food University Style | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"3d printing food",
"paste",
"paste extruder",
"syringe"
] | While refitting a 3D printer for food printing isn’t really a new idea, we liked the detailed summary that appeared from a team from the University of Birmingham which converted an i3 clone printer to use
a syringe extruder
.
The syringe in question was meant for veterinarian use and is made of metal. The paper suggest... | 5 | 4 | [
{
"comment_id": "6357877",
"author": "Ostracus",
"timestamp": "2021-06-19T04:04:27",
"content": "Considering the mass production that’s food this will remain kind of a niche item where it’s strengths apply.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "635788... | 1,760,373,047.623974 | ||
https://hackaday.com/2021/06/18/check-soil-moisture-at-a-glance-with-this-useful-display/ | Check Soil Moisture At A Glance With This Useful Display | Lewin Day | [
"Misc Hacks"
] | [
"moisture",
"soil",
"soil moisture sensor"
] | Keeping soil moist is key to keeping most plants happy. It can be a pain having to dip one’s fingers into dirty soil on the regular, so it’s desirable to have a tool to do the job instead.
[Andrew Lamchenko] built a capable soil moisture monitor, and equipped it with an E-ink display for easy readings at a glance.
The ... | 6 | 2 | [
{
"comment_id": "6357890",
"author": "sllw",
"timestamp": "2021-06-19T06:35:50",
"content": "this is that big! why this is not integrate with water container ;)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6357899",
"author": "Dude",
"timestamp": "20... | 1,760,373,046.910639 | ||
https://hackaday.com/2021/06/18/just-how-water-resistant-is-the-casio-f91w/ | Just How Water Resistant Is The Casio F91W? | Lewin Day | [
"clock hacks"
] | [
"casio",
"Casio F91W",
"F91W"
] | Water resistance is an important feature of a modern watch. It makes wearing the watch far more practical in this modern world of sudden rainstorms and urban water balloon ambushes. The Casio F91W, one of the company’s most popular watches, is claimed to be water resistant to “30 meters”, which in ISO parlance, means i... | 25 | 13 | [
{
"comment_id": "6357833",
"author": "Just how water resistant?",
"timestamp": "2021-06-18T20:13:46",
"content": "But the question still remains. How water resistant is the casio F91w. Down to 10metrs? 15meters? 30meters? 50meters? I need answers now that you have asked the question!",
"parent_i... | 1,760,373,047.586199 | ||
https://hackaday.com/2021/06/18/formula-1-tv-broadcasting-in-187-scale/ | Formula 1 TV Broadcasting In 1:87 Scale | Chris Lott | [
"Video Hacks"
] | [
"miniatures",
"model car",
"modeling",
"race car",
"video"
] | [Gerrit Braun], co-founder of the [Miniatur Wunderland] model railway and miniature airport attraction in Hamburg, takes his model building seriously. For more than five years, he and his team have been meticulously planning, testing, and building a 1:87 scale of Formula 1’s Monaco Grand Prix. Models at the
Wunderland
... | 11 | 9 | [
{
"comment_id": "6357818",
"author": "schlagbohrer",
"timestamp": "2021-06-18T18:47:13",
"content": "The Miniatur Wunderland is amazing. I’ve been there multiple times and everytime you will find new stuff even on the “old” sections. Those dairy videos show the endless effort they put into the displ... | 1,760,373,047.120925 | ||
https://hackaday.com/2021/06/18/do-you-spaceapi/ | Do You SpaceAPI? | Jenny List | [
"Hackerspaces",
"Software Hacks"
] | [
"community",
"hackerspaces",
"spaceapi"
] | Here at Hackaday we’re privileged to be part of a global community of hackers, makers, technology enthusiasts and creative people whose collective works make our daily news feeds such a fascinating read. We encounter you all directly in the physical world rather the virtual one at the many events across the community, ... | 8 | 4 | [
{
"comment_id": "6357854",
"author": "ROB",
"timestamp": "2021-06-18T22:47:27",
"content": "Oh look! There’s a hacker space only 4500 km from me lol.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357863",
"author": "Anita Space",
"timestamp... | 1,760,373,047.405644 | ||
https://hackaday.com/2021/06/19/apollo-shift-register-is-discrete/ | Apollo Shift Register Is Discrete | Al Williams | [
"Teardown"
] | [
"apollo",
"DTL",
"ken shirriff",
"nasa",
"shift register",
"space"
] | We’re unabashed fans of [Ken Shirriff] here at Hackaday, and his latest post about an
Apollo-era transistorized shift register
doesn’t disappoint. Of course, nowadays a 16-bit shift register is nothing special. But in 1965, this piece of Apollo test hardware weighed five pounds and likely cost at least one engineer’s s... | 10 | 5 | [
{
"comment_id": "6358073",
"author": "Paul",
"timestamp": "2021-06-20T05:12:51",
"content": "“Engineer salary per day”?More likely per month for such specialized test equipment manufactured individually in very small quantities.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,047.481365 | ||
https://hackaday.com/2021/06/19/turning-gamecube-n64-pads-into-midi-controllers/ | Turning GameCube & N64 Pads Into MIDI Controllers | Lewin Day | [
"Musical Hacks",
"Nintendo Hacks"
] | [
"arduino",
"arduino pro micro",
"gamecube",
"midi",
"n64",
"nintendo",
"nintendo 64",
"nintendo gamecube"
] | It’s fair to say that the Nintendo 64 and GameCube both had the most unique controllers of their respective console generations. The latter’s gamepads are still in high demand today as the
Smash Bros.
community continues to favor its traditional control scheme. However, both controllers can easily be repurposed for mus... | 2 | 2 | [
{
"comment_id": "6358145",
"author": "Yeshua Watson",
"timestamp": "2021-06-20T14:57:11",
"content": "I’ve done the drum thing with all the Rock Band sets that are staying to pile up in dumpsters due to new console incompatibilities. Although, I implemented the midi interface in software simply conv... | 1,760,373,047.524298 | ||
https://hackaday.com/2021/06/19/ipod-hifi-gains-new-high-notes/ | IPod HiFi Gains New High Notes | Jenny List | [
"home entertainment hacks"
] | [
"crossover",
"ipod",
"ipod hifi",
"speaker",
"tweeter"
] | The iPod HiFi was a stereo speaker add-on produced by Apple in the mid-2000s for their iPod range, a $300-plus speaker cabinet with twin drivers per channel, an iPod dock, aux, and TOSLINK interfaces. It’s caught the eye of [Jake], in particular one posted on Reddit that had an extra set of tweeters to improve the HiFi... | 1 | 1 | [
{
"comment_id": "6486002",
"author": "edba",
"timestamp": "2022-06-22T08:59:24",
"content": "Hi, the Github images are not available. Could you please re-upload?",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,047.66834 | ||
https://hackaday.com/2021/06/19/1700-regulatory-approvals-revoked-in-south-korea/ | 1700 Regulatory Approvals Revoked In South Korea | Chris Lott | [
"News"
] | [
"international",
"legal",
"regulatory compliance",
"south korea",
"telecommunications"
] | For the first time since its inception, the Korea Communications Commission this week
revoked the regulatory approvals
of 1,696 telecommunications devices from 378 companies, both foreign and domestic. Those companies must recall unsold inventory from the shelves, and prove conformity of existing products already sold.... | 40 | 9 | [
{
"comment_id": "6357986",
"author": "Justin",
"timestamp": "2021-06-19T20:26:52",
"content": "“Boss, our EMC testing failed.” “Well, just send it to China to get tested. They’ll pass anything.” Problem solved. I know a lot of bosses that would be ok with this.",
"parent_id": null,
"depth... | 1,760,373,047.748054 | ||
https://hackaday.com/2021/06/19/vacuum-tube-magic-comes-to-the-741/ | Vacuum Tube Magic Comes To The 741 | Jenny List | [
"classic hacks",
"Radio Hacks"
] | [
"741",
"op-amp",
"tube"
] | Some of you may remember a recent project that featured on these pages, a 555 timer reproduced using vacuum tubes. Its creator [Usagi Electric] was left at loose ends while waiting for a fresh PCB revision of the 555 to be delivered, so set about creating a new vacuum tube model of a popular chip,
this time the ubiquit... | 41 | 9 | [
{
"comment_id": "6357948",
"author": "mime",
"timestamp": "2021-06-19T17:27:13",
"content": "Well, the 6dj8 tubes he’s using are used with an anode voltage of 24V, and they were designed to work with a typical voltage of 90V. If he increases the voltage, the tubes should work better.",
"parent_i... | 1,760,373,048.083432 | ||
https://hackaday.com/2021/06/19/growing-up-with-computers/ | Growing Up With Computers | Elliot Williams | [
"computer hacks",
"Hackaday Columns",
"Rants",
"Slider"
] | [
"children",
"computers",
"education",
"newsletter",
"retrocomputing"
] | My son is growing up with computers. He’s in first grade, and had to list all of the things that he knows how to do with them. The list included things like mousing around, drawing ghosts with the paint program, and — sign of the times — muting and unmuting the microphone when he’s in teleconferences. Oh yeah, and typi... | 78 | 24 | [
{
"comment_id": "6357940",
"author": "Danjovic",
"timestamp": "2021-06-19T16:44:34",
"content": "Z80 Assembly language is a tasteful snack for the eager mind of a teenager. Those were good times!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357942",
... | 1,760,373,048.304791 | ||
https://hackaday.com/2021/06/19/tell-time-the-cistercian-way/ | Tell Time The Cistercian Way | Jenny List | [
"clock hacks"
] | [
"Cistercian",
"cistercian clock",
"led matrix"
] | It’s rare for the fields of the engineer and the mediaevalist to coincide, but
there’s a clock project bringing the two fields together
. The Cistercian monastic order used an intriguing number system from the 13th century onwards that could represent any four-digit number as a series of radicals expressed in the four ... | 10 | 8 | [
{
"comment_id": "6357916",
"author": "Val",
"timestamp": "2021-06-19T11:04:17",
"content": "Is this a prank clock for colour blind people?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357962",
"author": "BrightBlueJim",
"timestamp": "2021-... | 1,760,373,047.932722 | ||
https://hackaday.com/2021/06/18/hackaday-podcast-123-radioactive-rhinos-wile-e-coyote-jetpack-radio-hacks-3-ways-and-battery-welders-on-the-spot/ | Hackaday Podcast 123: Radioactive Rhinos, Wile E. Coyote Jetpack, Radio Hacks 3-Ways, And Battery Welders On The Spot | Dan Maloney | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday’s Mike Szczys is taking a bit of vacation this week, so Elliot is joined by Staff Writer Dan Maloney to talk about all the cool hacks and great articles that turned up this week. Things were busy, so there was plenty to choose from, but how would we not pick one that centers around strapping a jet engine to yo... | 0 | 0 | [] | 1,760,373,048.717892 | ||
https://hackaday.com/2021/06/18/led-matrix-glasses-built-with-the-help-of-graph-paper/ | LED Matrix Glasses Built With The Help Of Graph Paper | Lewin Day | [
"LED Hacks"
] | [
"led glasses",
"led matrix"
] | These days, there’s all manner of addressable LEDs out there that can be easily used to produce blinky, flashy projects. However, there’s nothing stopping makers from doing things the old fashioned way, and hacking together an matrix out of raw LEDs.
[Deepak Khatri] did just that with his own custom build.
Rather than ... | 5 | 3 | [
{
"comment_id": "6357774",
"author": "seand",
"timestamp": "2021-06-18T15:51:19",
"content": "Finally, I can have meme laser eyes IRL.Neat project but I wonder how much you can see when those things are on!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357... | 1,760,373,048.00734 | ||
https://hackaday.com/2021/06/18/this-week-in-security-updates-leaks-hacking-old-hardware-and-making-new/ | This Week In Security: Updates, Leaks, Hacking Old Hardware, And Making New | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"android",
"ios",
"This Week in Security",
"wrt54gl"
] | First off, Apple has issued
an update for some very old devices
. Well, vintage 2013, but that’s a long time in cell-phone years. Fixed are a trio of vulnerabilities, two of which
are reported to be exploited in the wild
. CVE-2021-30761 and CVE-2021-30762 are both flaws in Webkit, allowing for arbitrary code execution... | 8 | 5 | [
{
"comment_id": "6357801",
"author": "Jack",
"timestamp": "2021-06-18T19:34:28",
"content": "The right answer for what apple should be doing here is obvious. Have a physical “switch” which must be moved to enable such sideloading. A waleld garden is not a morally acceptable software ecosystem, but t... | 1,760,373,048.128473 | ||
https://hackaday.com/2021/06/18/mistaken-identity-piezo-actuators-not-test-pads/ | Mistaken Identity — Piezo Actuators Not Test Pads | Chris Lott | [
"Teardown"
] | [
"hard disk",
"hard drive read head",
"micro-actuators",
"milli-actuators",
"piezoresistive transducer"
] | One hard disk recently failed in the EEVBlog laboratory’s NAS. Keeping true to his catch phrase, [Dave “Tear it Apart” Jones] opened it up and
gave us an inside tour
of a modern hard disk drive. There are so many technological wonders to behold in modern HDDs these days — the mechanical design, electronics and magnetic... | 16 | 5 | [
{
"comment_id": "6357727",
"author": "Slacker",
"timestamp": "2021-06-18T11:31:04",
"content": "This is a sad video.Take a look at this guy’s channel takes them apart and repairs themhttps://youtube.com/c/hddrecoveryservices",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,373,048.361336 | ||
https://hackaday.com/2021/06/18/blowing-a-5000a-fuse-takes-some-doing/ | Blowing A 5000 A Fuse Takes Some Doing | Lewin Day | [
"Misc Hacks"
] | [
"5000a fuse",
"fuse",
"photonicinduction"
] | Fuses are generally there to stop excessive electrical currents from damaging equipment or people’s soft, fleshy bodies when faults occur. However, some people like to blow them just for fun, and [Photonicinduction] is just one of those people. He recently decided to push the boat out,
setting his mind to the task of p... | 37 | 21 | [
{
"comment_id": "6357687",
"author": "Marvin",
"timestamp": "2021-06-18T08:13:54",
"content": "Insanely insane insanity here!I love it :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6357697",
"author": "Leander",
"timestamp": "2021-06-18T08:45:29",
... | 1,760,373,048.436323 | ||
https://hackaday.com/2021/06/17/scratch-built-tracked-robot-reporting-for-duty/ | Scratch Built Tracked Robot Reporting For Duty | Tom Nardi | [
"Raspberry Pi",
"Robots Hacks"
] | [
"night vision",
"node-red",
"remote controlled",
"rover",
"tank tread",
"tracked robot"
] | Inspired by battle-hardened military robots, [Engineering Juice] wanted to build his own remote controlled rover that could deliver live video from the front lines. But rather than use an off-the-shelf tracked robot chassis,
he decided to design and 3D print the whole thing from scratch
. While the final product might ... | 18 | 10 | [
{
"comment_id": "6357678",
"author": "ExploWare",
"timestamp": "2021-06-18T07:00:01",
"content": "that picture is not showing a Raspberry Pi 4 though",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357688",
"author": "three_d_dave",
"timestam... | 1,760,373,048.676801 | ||
https://hackaday.com/2021/06/17/the-regulatory-side-of-rolling-your-own-moderate-solar-farm/ | The Regulatory Side Of Rolling Your Own Moderate Solar Farm | Donald Papp | [
"green hacks",
"home hacks"
] | [
"inspections",
"NEC",
"power company",
"power grid",
"regulatory compliance",
"solar",
"solar farm"
] | [Russell Graves] lives in Idaho and recently connected his solar installation to the grid, which meant adhering to regulatory requirements for both the National Electric Code (NEC) as well as complying with the local power company’s own regulations.
His blog post is an interesting look at the whole regulatory process a... | 25 | 8 | [
{
"comment_id": "6357668",
"author": "reg",
"timestamp": "2021-06-18T04:35:32",
"content": "A good friend of mine went through the visible disconnect when he plumbed is generator up to his house, even though the generator had an approved transfer switch. In the end the power company allowed him to ... | 1,760,373,048.612375 | ||
https://hackaday.com/2021/06/16/review-battery-spot-welders-why-you-should-buy-a-proper-spot-welder/ | Review: Battery Spot Welders, Why You Should Buy A Proper Spot Welder | Jenny List | [
"Hackaday Columns",
"Reviews",
"Tool Hacks"
] | [
"battery pack",
"battery spot welder",
"review",
"spot welder"
] | Making battery packs is a common pursuit in our community, involving spot-welding nickel strips to the terminals on individual cells. Many a pack has been made in this way, using reclaimed 18650 cells taken from discarded laptops. Commercial battery spot welders do a good job but have a huge inrush current and aren’t c... | 64 | 27 | [
{
"comment_id": "6357228",
"author": "gebi",
"timestamp": "2021-06-16T14:06:03",
"content": "i’ve no idea how you came to the conclusion that battery spot welders “don’t deliver” in general…kweld (the one you linked to as MOSFET based spot welder) works great and reliable since years.Started using i... | 1,760,373,048.869131 | ||
https://hackaday.com/2021/06/16/modular-box-design-eases-silicone-mold-making/ | Modular Box Design Eases Silicone Mold-Making | Donald Papp | [
"Tool Hacks"
] | [
"3d printed",
"adjustable",
"casting",
"magnets",
"mold making",
"resin",
"silicone"
] | Resin casting is a fantastic way to produce highly detailed parts in a wide variety of colors and properties, and while the process isn’t complicated, it does require a certain amount of care and setup. Most molds are made by putting a part into a custom-made disposable box and pouring silicone over it, but [Foaly] was... | 13 | 5 | [
{
"comment_id": "6357219",
"author": "stupid",
"timestamp": "2021-06-16T12:54:13",
"content": "Legos and a plastic bag is the correct answer.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357233",
"author": "UnderSampled",
"timestamp": "202... | 1,760,373,048.923663 | ||
https://hackaday.com/2021/06/16/an-automatic-shop-vac-dust-extractor/ | An Automatic Shop Vac Dust Extractor | Jenny List | [
"Tool Hacks"
] | [
"chop saw",
"dust extraction",
"shop vac"
] | Finding cheap or even free tools in the second-hand adverts is probably a common pursuit among Hackaday readers. Thus many of you will like [DuctTape Mechanic], have a row of old woodworking bench tools. The experience we share with him is a lack of dust extraction, which makes
his adaption of a second-hand shop vac
as... | 11 | 7 | [
{
"comment_id": "6357181",
"author": "DL",
"timestamp": "2021-06-16T08:31:40",
"content": "It’s “adaptation”, instead of “adaption. Third line.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357201",
"author": "Stu",
"timestamp": "2021-06-16... | 1,760,373,048.763329 | ||
https://hackaday.com/2021/06/15/aprs-implemented-at-low-cost-and-small-size/ | APRS Implemented At Low Cost And Small Size | Bryan Cockfield | [
"Radio Hacks"
] | [
"APRS",
"digital",
"ESP32",
"inexpensive",
"modem",
"small",
"voice"
] | Before smartphones and Internet of Things devices were widely distributed, the Automatic Packet Reporting System (APRS) was the way to send digital information out wirelessly from remote locations. In use since the 80s, it now has an almost hipster “wireless data before it was cool” vibe, complete with plenty of people... | 17 | 10 | [
{
"comment_id": "6357173",
"author": "Lou",
"timestamp": "2021-06-16T06:12:50",
"content": "…. he hopes that the project will be a way to modernize the APRS protocol….Why? There’s nothing wrong with APRS as it stands.The biggest problem is that almost no one has ever used the system as it was envisi... | 1,760,373,048.979324 | ||
https://hackaday.com/2021/06/15/art-with-technology-hack-chat/ | Art With Technology Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"animation",
"art",
"blender",
"gaming",
"Hack Chat",
"motion capture",
"stop motion",
"technology"
] | Join us on Wednesday, June 16 at noon Pacific for the
Art with Technology Hack Chat
with
Cory Collins
!
As hackers, we naturally see the beauty of technology. We often talk in terms of the aesthetics of a particular hack, or the elegance of one solution over another, and we can marvel at the craftsmanship involved in e... | 0 | 0 | [] | 1,760,373,049.504588 | ||
https://hackaday.com/2021/06/15/cheap-expandable-floor-piano-plays-with-heart-and-soul/ | Cheap, Expandable Floor Piano Plays With Heart And Soul | Kristina Panos | [
"Arduino Hacks",
"Musical Hacks"
] | [
"arduino",
"arduino mega",
"floor piano",
"leds",
"MPR121"
] | Ever since we saw the movie
Big,
we’ve wanted a floor piano. Still do, actually. We sometimes wonder how many floor pianos that movie has sold. It’s definitely launched some builds, too, but perhaps none as robust as
this acrylic and wooden beauty by [FredTSL]
. If you want more technical detail,
check out the project ... | 9 | 3 | [
{
"comment_id": "6357169",
"author": "echodelta",
"timestamp": "2021-06-16T05:11:24",
"content": "I would like to see an isotonic layout, less reach more pads redundancy. With all the pads the same size, you could move to different types. Bayon or the other, or any layout.",
"parent_id": null,
... | 1,760,373,049.024228 | ||
https://hackaday.com/2021/06/15/developing-a-power-over-ethernet-stack-light/ | Developing A Power Over Ethernet Stack Light | Tom Nardi | [
"LED Hacks",
"Microcontrollers"
] | [
"dmx",
"ESP32",
"ethernet",
"PoE",
"power over ethernet",
"stack light"
] | A common sight on factory floors, stack lights are used to indicate the status of machinery to anyone within visual range. But hackers have found out you can pick them up fairly cheap online, so we’ve started to see them used as indicators in slightly more mundane situations than they were originally intended for.
[Tyl... | 9 | 4 | [
{
"comment_id": "6357116",
"author": "Inhibit",
"timestamp": "2021-06-15T22:08:07",
"content": "Fairly cheap! That’s tens of dollars, at least!If you’ve got a 3D printer and a parts bin of LEDs there’s a model up on Thingiverse to DIY the whole build.https://www.thingiverse.com/thing:4268994",
"... | 1,760,373,049.882342 | ||
https://hackaday.com/2021/06/17/cloned-memory-module-fixes-broken-scopemeter/ | Cloned Memory Module Fixes Broken Scopemeter | Dan Maloney | [
"News",
"Repair Hacks",
"Teardown"
] | [
"flash",
"fluke",
"memory",
"ram",
"reverse engineering",
"scopemeter"
] | Finding broken test gear and fixing it up to work again is a time-honored tradition among hackers. If you’re lucky, that eBay buy will end up being DOA because of a popped fuse or a few bad capacitors, and a little work with snips and a soldering iron will earn you a nice piece of test gear and bragging rights to boot.... | 9 | 6 | [
{
"comment_id": "6357405",
"author": "John",
"timestamp": "2021-06-17T09:10:51",
"content": "Wow, that’s amazing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6357422",
"author": "CRJEEA",
"timestamp": "2021-06-17T11:06:34",
"content": "That memo... | 1,760,373,049.929873 | ||
https://hackaday.com/2021/06/16/retrotechtacular-discovering-aerodynamics-with-the-chrysler-airflow/ | Retrotechtacular: Discovering Aerodynamics With The Chrysler Airflow | Dan Maloney | [
"Retrotechtacular"
] | [
"aerodynamics",
"automotive",
"car",
"design",
"retrotechtacular",
"streamlining",
"wind tunnel"
] | When you think about it, for most of human history we’ve been a pretty slow bunch. At any time before about 150 years ago, if you were moving faster than a horse can run, you were probably falling to your death. And so the need to take aerodynamics into consideration is a pretty new thing.
The relative novelty of aerod... | 31 | 6 | [
{
"comment_id": "6357364",
"author": "Chris L Snyder",
"timestamp": "2021-06-17T03:40:06",
"content": "looks like a lot of the products that came out of Europe in the 30’s",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357379",
"author": "Mwil",
... | 1,760,373,049.391068 | ||
https://hackaday.com/2021/06/16/wood-and-brass-drink-temperature-monitor-looks-good-has-class/ | Wood And Brass Drink Temperature Monitor Looks Good, Has Class | Kristina Panos | [
"Arduino Hacks",
"Lifehacks"
] | [
"9V battery",
"arduino",
"arduino nano",
"IR temperature sensor",
"leds",
"lever switch",
"limit switch"
] | We’ve all been there. Your current project has hit a wall, or the next step will take days to complete, and you need something to do in the meantime. So you start a project that you envision will fit nicely in the gap, and then, inevitably, it doesn’t. Maybe it even takes so long that the original project gets finished... | 7 | 4 | [
{
"comment_id": "6357341",
"author": "rpavlik",
"timestamp": "2021-06-16T23:49:40",
"content": "What a lovely result, looking forward to watching the video. Circuit sculpture always looks so cool when well done, and this looks closer to my level (I struggle to make perf board look tidy…)",
"pare... | 1,760,373,049.467792 | ||
https://hackaday.com/2021/06/16/repairing-a-300w-co2-laser-one-toasted-part-at-a-time/ | Repairing A 300W CO2 Laser, One Toasted Part At A Time | Tom Nardi | [
"Laser Hacks",
"Repair Hacks"
] | [
"diy inductor",
"inductor",
"laser",
"power supply"
] | A couple months back, [macona] got his hands on a 300 watt Rofin CO2 laser in an unknown condition. Unfortunately, its condition became all too known once he
took a peek inside the case of the power supply and was confronted with some very toasty components
. It was clear that the Magic Smoke had been released with a c... | 27 | 8 | [
{
"comment_id": "6357305",
"author": "Per Jensen",
"timestamp": "2021-06-16T20:41:05",
"content": "LMLM2576HVT ? I think this one got an LM too much ;D",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357306",
"author": "Cree",
"timestamp": "2... | 1,760,373,049.573489 | ||
https://hackaday.com/2021/06/16/sunlight-based-life-clock-predicts-your-darkest-hour/ | Sunlight-Based Life Clock Predicts Your Darkest Hour | Kristina Panos | [
"Arduino Hacks",
"clock hacks",
"Solar Hacks",
"The Hackaday Prize"
] | [
"arduino",
"arduino pro mini",
"e-paper",
"e-paper display",
"life expectancy",
"the hackaday prize"
] | The past year has been quite a ride for everyone on Earth. But you never know which day is going to be your last, so you might as well live a little, eh?
This clock doesn’t actually know when you’ll kick off, either
. But just for fun, it predicts the number of years remaining until you go to that hackerspace in the sk... | 9 | 6 | [
{
"comment_id": "6357288",
"author": "Dude",
"timestamp": "2021-06-16T18:51:37",
"content": "The last bit will be like watching a big download complete on a 56k modem.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6357291",
"author": "John Q. Public",
... | 1,760,373,049.624783 | ||
https://hackaday.com/2021/06/16/the-other-first-computer-konrad-zuse-and-the-z3/ | The Other First Computer: Konrad Zuse And The Z3 | Chris Lott | [
"Engineering",
"Featured",
"History",
"Slider"
] | [
"computer history",
"Inventor",
"Konrad Zuse"
] | Bavarian Alps, Dec. 1945:
Since 1935, Berlin engineer Konrad Zuse has spent his entire career developing a series of automatic calculators, the first of their kind in the world: the Z1, Z2, Z3, S1, S2, and Z4. He accomplished this with a motley group of engineers, technicians, and mathematicians who were operating agai... | 43 | 20 | [
{
"comment_id": "6357276",
"author": "Ren",
"timestamp": "2021-06-16T17:19:55",
"content": "2nd paragraph:“Two years ago, during the Battle of Berlin, ”Did you mean “Two years earlier”?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357278",
"author... | 1,760,373,049.760802 | ||
https://hackaday.com/2021/06/16/printable-hot-swap-sockets-make-keyboard-building-even-cooler/ | Printable Hot-Swap Sockets Make Keyboard Building Even Cooler | Kristina Panos | [
"Peripherals Hacks"
] | [
"hot swap",
"hot swap sockets",
"mechanical keyboard"
] | Okay, so you want to build a keyboard — something crazy-curvy like the dactyl or dactyl manuform. The kind of keyboard that has to be hand-wired, because key wells and rigid PCBs do not play well together. You want to build this keyboard, but all that hand-wiring would mean that you can’t easily swap switches later. An... | 7 | 5 | [
{
"comment_id": "6357320",
"author": "Curlyknob",
"timestamp": "2021-06-16T21:34:45",
"content": "Keyboardaday",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357333",
"author": "bbp",
"timestamp": "2021-06-16T22:49:57",
"content": "C... | 1,760,373,049.668214 | ||
https://hackaday.com/2021/06/17/using-heaters-to-display-time/ | Using Heaters To Display Time | Bryan Cockfield | [
"clock hacks"
] | [
"clock",
"display",
"ESP8266",
"heat",
"ntp",
"pcb",
"resistor",
"smd",
"thermochromic"
] | We’re always fans of interesting clock builds around here, whether it’s a word clock, marble clock, or in this case a clock using a unique display method. Of course, since this is a build by Hackaday’s own [Moritz v. Sivers] the display that was chosen for this build was a custom thermochromic display. These displays u... | 9 | 8 | [
{
"comment_id": "6357626",
"author": "Dave",
"timestamp": "2021-06-17T23:24:30",
"content": "Nice clock!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6357627",
"author": "rnjacobs",
"timestamp": "2021-06-17T23:25:37",
"content": "A very long time... | 1,760,373,050.299816 | ||
https://hackaday.com/2021/06/17/upgrading-the-powerbook-100-with-a-fresh-new-battery/ | Upgrading The PowerBook 100 With A Fresh New Battery | Lewin Day | [
"laptops hacks"
] | [
"battery",
"laptop",
"laptop battery",
"macintosh",
"Powerbook",
"powerbook 100"
] | The PowerBook 100 was one of the earliest Apple laptops released, coming not long after the breakout Macintosh Portable. Unlike modern hardware, it relied on sealed lead acid batteries. [360alaska] has such a laptop whose original battery is long dead,
so they set about building a replacement battery with lithium cells... | 12 | 7 | [
{
"comment_id": "6357587",
"author": "Esot.eric",
"timestamp": "2021-06-17T20:40:58",
"content": "Back when laptops could run off AC AND charge at the same time!I love seeing folk go to such efforts to keep machines like this alive. Emulation is fun and all, but nothing like the real thing, and some... | 1,760,373,050.046184 | ||
https://hackaday.com/2021/06/17/a-tidy-octave-mod-for-the-casio-sk-1/ | A Tidy Octave Mod For The Casio SK-1 | Lewin Day | [
"Musical Hacks"
] | [
"casio",
"Casio SK-1",
"keyboard",
"sampler",
"sampling keyboard"
] | 1985 saw the release of the Casio SK-1, a compact sampling keyboard that brought the technology to a lower price point than ever before. However, one drawback of this was that it comes stock with only a 2.5 octave keyboard. [Jonas Karlsson] wanted a little more range out of the instrument,
so set about hacking in his o... | 5 | 3 | [
{
"comment_id": "6357812",
"author": "mjrippe",
"timestamp": "2021-06-18T18:29:19",
"content": "As the oscillator is an LC type, I wonder if it would not be easier to change the values of those two components via a multi-pole switch?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,050.091007 | ||
https://hackaday.com/2021/06/17/how-to-get-into-cars-land-speed-racing/ | How To Get Into Cars: Land Speed Racing | Lewin Day | [
"car hacks",
"Hackaday Columns",
"Original Art",
"Slider"
] | [
"car hacks",
"cars",
"how to get into cars",
"land speed racing",
"Land speed record"
] | Land speed racing is one of the oldest forms of motorsport, and quite literally consists of going very, very fast in (ideally) a straight line. The higher the speed your car can attain, the better! It’s about the pure pursuit of top speed above all else, and building a car to compete is a calling for a dedicated few. I... | 12 | 8 | [
{
"comment_id": "6357561",
"author": "IIVQ",
"timestamp": "2021-06-17T18:35:44",
"content": "I remember seeing on TV (must’ve been late 1990’s) a “race” on a salt flat between a Dodge Viper or so and something that I remember as the Thrust SSC but might’ve been another car. The Viper just split whil... | 1,760,373,050.212772 | ||
https://hackaday.com/2021/06/17/the-ridiculous-gamecube-keyboard-controller-gets-modded/ | The Ridiculous GameCube Keyboard Controller Gets Modded | Lewin Day | [
"Nintendo Hacks"
] | [
"gamecube",
"gamecube keyboard",
"keyboard",
"nintendo",
"nintendo gamecube"
] | Believe it or not, there was a keyboard peripheral sold for the original GameCube, and it was built into the middle of a controller. Designed for the Phantasy Star Online games, it allowed players to easily communicate with others via chat. [peachewire] got their hands on one,
and set about modifying it in the way only... | 4 | 3 | [
{
"comment_id": "6357616",
"author": "Jason",
"timestamp": "2021-06-17T22:36:50",
"content": "It still completely baffles me that this product existed at all, cool mod though!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357650",
"author": "Steven... | 1,760,373,050.256092 | ||
https://hackaday.com/2021/06/17/where-are-all-the-cheap-x86-single-board-pcs/ | Where Are All The Cheap X86 Single Board PCs? | Jenny List | [
"computer hacks",
"Featured",
"hardware",
"Interest",
"Slider"
] | [
"amd",
"CPU architecture",
"intel",
"raspberry pi",
"single board computer",
"x86"
] | If we were to think of a retrocomputer, the chances are we might have something from the classic 8-bit days or maybe a game console spring to mind. It’s almost a shock to see mundane desktop PCs of the DOS and Pentium era join them, but those machines now form an important way to play DOS and Windows 95 games which are... | 154 | 50 | [
{
"comment_id": "6357470",
"author": "Tom Brusehaver",
"timestamp": "2021-06-17T14:18:25",
"content": "There is a component missing in the hypothesis stated above.What if Linux had never come along?Would there be a place for any cup that doesn’t run windows? Arm, risc or otherwise.",
"parent_id"... | 1,760,373,050.891601 | ||
https://hackaday.com/2021/06/17/is-that-an-emp-generator-in-your-pocket-or-is-my-calculator-just-broken/ | Is That An EMP Generator In Your Pocket Or Is My Calculator Just Broken? | Dan Maloney | [
"Misc Hacks"
] | [
"electromagnetic pulse",
"emp",
"high voltage",
"hv",
"RF",
"scrambler",
"spark gap"
] | Ah, what fond memories we have of our misspent youth, walking around with
a 9,000-volt electromagnetic pulse generator
in our Levi’s 501s and zapping all the electronic devices nobody yet carried with them everywhere they went. Crazy days indeed.
We’re sure that’s not at all what [Rostislav Persion] had in mind when de... | 42 | 17 | [
{
"comment_id": "6357426",
"author": "Kilian Demmel",
"timestamp": "2021-06-17T11:15:38",
"content": "Has anyone ever used one of these against an electronic door lock? I wonder what would happen…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357430",
... | 1,760,373,050.378629 | ||
https://hackaday.com/2021/06/15/23-scale-vt100-terminal-gets-closer-to-its-roots/ | 2:3 Scale VT100 Terminal Gets Closer To Its Roots | Tom Nardi | [
"classic hacks",
"Raspberry Pi"
] | [
"DEC VT100",
"emulator",
"serial terminal",
"simulator",
"Terminal emulator",
"vt100"
] | When
[Michael Gardi] finished his scaled down DEC VT100 replica a few months ago
, he made it very clear that the project was only meant to look like a vintage terminal on the outside. A peek into the case revealed nothing more exotic than a Raspberry Pi running its default operating system, making the terminal just as... | 44 | 13 | [
{
"comment_id": "6357078",
"author": "Erik",
"timestamp": "2021-06-15T18:36:56",
"content": "You’re missing a lot of the vt100 experience if you don’t make it 2/3 as heavy as the original. For this size, that would be 28 lbs.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,051.14528 | ||
https://hackaday.com/2021/06/15/alice-ball-steamrolled-leprosy/ | Alice Ball Steamrolled Leprosy | Kristina Panos | [
"Biography",
"chemistry hacks",
"Featured",
"Medical Hacks",
"Original Art"
] | [
"chaulmoogra",
"chaulmoogra oil",
"ester compound",
"leprosy",
"the Ball Method"
] | Leprosy is a bacterial disease that affects the skin, nerves, eyes, and mucosal surfaces of the upper respiratory tract. It is transmitted via droplets and causes skin lesions and loss of sensation in these regions. Also known as Hansen’s disease after the 19th century scientist who discovered its bacterial origin, lep... | 22 | 7 | [
{
"comment_id": "6357060",
"author": "spiritplumber",
"timestamp": "2021-06-15T17:15:11",
"content": "Yep, this sort of thing keeps happening. Also see Antonio Meucci because he was an immigrant.“If you become an inventor, you can make someone else very, very rich!” doesn’t sound very motivational w... | 1,760,373,050.525836 | ||
https://hackaday.com/2021/06/15/printed-catamaran/ | Printed Catamaran | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"boat",
"catamaran",
"lake",
"ocean",
"river",
"watercraft"
] | If you want to send some instruments out on the lake or the ocean, you’ll want something that floats. Sure, if you need to be underwater, or if you can fly over the water there are other options, but sometimes you want to be on the surface. For stability, it is hard to beat a catamaran — a boat with two hulls that each... | 8 | 3 | [
{
"comment_id": "6357170",
"author": "William Joseph Gallant",
"timestamp": "2021-06-16T05:38:56",
"content": "Yes it’s an RC boat but how long till the boating industry begins printing full sized vessels?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "63572... | 1,760,373,050.676201 | ||
https://hackaday.com/2021/06/15/your-1958-punch-card-machine-tested-tubes/ | Your 1958 Punch Card Machine Tested Tubes | Al Williams | [
"Hackaday Columns",
"Slider",
"Tool Hacks"
] | [
"hickok",
"punch cards",
"punched cards",
"tube",
"tube tester"
] | We think of punched cards as old-fashioned, but still squarely part of the computer age. Turns out, cards were in use way before they got conscripted by computers. Jacquard looms are one famous example. The U.S. Census famously used punched cards for tabulating the census without anything we’d consider a computer. But ... | 12 | 7 | [
{
"comment_id": "6357021",
"author": "Ken",
"timestamp": "2021-06-15T14:07:27",
"content": "“If you were the kind of person who would change your own oil, you’d probably look to see if you could spot a burned out tube and try replacing it. If you couldn’t spot it, you’d pull all the tubes out. If yo... | 1,760,373,050.618362 |
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