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https://hackaday.com/2021/08/15/hackaday-links-august-15-2021/ | Hackaday Links: August 15, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"Apollo-Soyuz",
"ar",
"chip shortage",
"hackaday links",
"HP-65",
"reverse passthrough",
"semiconductor",
"space hotel",
"space tourism",
"supply chain",
"virtual reality",
"vr",
"X Server",
"Xeyes"
] | Unless you’re in the market for a new car, household appliance, or game console, or if you’re involved in the manufacture of these things, chances are pretty good that the global semiconductor shortage hasn’t directly impacted you yet. But we hobbyists might be due for a comeuppance as
the chip shortage starts to impac... | 13 | 7 | [
{
"comment_id": "6372717",
"author": "Bret Tschacher",
"timestamp": "2021-08-15T23:27:44",
"content": "As far as the price of chips goes, I doubt a $10 chip will sell for $350. There IS such a thing as pricing items right out of the market. When the price must be passed on to the end consumer and th... | 1,760,372,984.311805 | ||
https://hackaday.com/2021/08/15/solar-display-case-is-a-portable-triple-monitor-setup/ | Solar Display Case Is A Portable Triple Monitor Setup | Lewin Day | [
"green hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"multimonitor",
"solar",
"solar panel",
"solar power"
] | They say once you start using twin monitors on the desktop, you’ll never want to go back. It’s even worse when you upgrade to three or more. However, it can be difficult to take such a set up on the road. Desiring better productivity on the go is what spurred [Brian Whitsett] to develop the Solar Display Case
to solve ... | 10 | 4 | [
{
"comment_id": "6372696",
"author": "Foldi-One",
"timestamp": "2021-08-15T20:36:18",
"content": "Really neat idea, though I don’t think there is near enough surface area on those monitors to reliably get close to powering them, unless they are transflective tech monitors (which don’t seem to be mad... | 1,760,372,984.427955 | ||
https://hackaday.com/2021/08/15/a-cold-gas-thruster-on-an-rc-car/ | A Cold Gas Thruster On An RC Car | Lewin Day | [
"Toy Hacks"
] | [
"cold gas thruster",
"R/C car",
"radio control"
] | Tesla have boldly claimed that one day they’ll ship a Roadster complete with a cold-gas thruster for truly ridiculous acceleration. Whether or not that ever comes to pass remains to be seen, but [Engineering After Hours] decided to try out the technology
on an RC car instead.
The thruster uses a pair of disposable CO2 ... | 12 | 4 | [
{
"comment_id": "6372661",
"author": "Alex99a",
"timestamp": "2021-08-15T17:42:30",
"content": "I had a model car (Monogram or Revell) back in the sixties powered by CO2 capsules… nobody tried to be fancy calling it a “cold gas thruster”, tho.",
"parent_id": null,
"depth": 1,
"replies": ... | 1,760,372,984.943014 | ||
https://hackaday.com/2021/08/15/solar-fueled-emergency-power-pack/ | Solar Fueled Emergency Power Pack | Chris Lott | [
"Lifehacks"
] | [
"emergency power",
"emergency preparedness",
"power pack",
"solar charger",
"solar panels"
] | Heavy rainfall in Northern Europe last month caused disastrous flooding in several countries. [Daniel Jedecke] was on assignment in the North Rhine-Westphalia region of Germany during the floods and saw the damage firsthand. He was struck by the lack of emergency power, and set about the task of designing a
simple, por... | 23 | 14 | [
{
"comment_id": "6372620",
"author": "jpa",
"timestamp": "2021-08-15T14:13:57",
"content": "My emergency power pack is two ebike batteries, having a total of 600 Wh. But it would be a good idea to work out the wiring to run some LED lights off them ahead of time.",
"parent_id": null,
"depth"... | 1,760,372,984.143212 | ||
https://hackaday.com/2021/08/15/3d-printed-fabric-stiffens-on-demand/ | 3D Printed Fabric Stiffens On Demand | Al Williams | [
"3d Printer hacks",
"Wearable Hacks"
] | [
"3d printed fabric",
"fabric",
"jamming transistion",
"octahedron"
] | Researchers in Singapore and at CalTech have developed a 3D printed fabric with an interesting property: it is generally flexible but can
stiffen on demand
. You can see a video about the new fabric, below.
The material consists of nylon octahedrons interlocked. The cloth is enclosed in a plastic envelope and vacuum-pa... | 20 | 10 | [
{
"comment_id": "6372605",
"author": "vib",
"timestamp": "2021-08-15T11:28:16",
"content": "Similar in use to what is used to transport wounded people: a bag filled with styrofoam balls, when the air is removed from the bag it hold shape and becomes stiff. This thing is a bit different since it´s a ... | 1,760,372,984.198175 | ||
https://hackaday.com/2021/08/15/touchscreen-makes-for-a-neat-wavetable-synth/ | Touchscreen Makes For A Neat Wavetable Synth | Lewin Day | [
"Arduino Hacks"
] | [
"arduino",
"midi",
"synth",
"synthesizer",
"wavetable",
"wavetable synthesis"
] | A popular tool in chiptune software like LSDJ allows the user to draw a waveform and use it as the basis for a wavetable synth. It’s fun and it can produce some great bleeps and bloops.
[Kevin] has created a similar tool using an Arduino and a touchscreen.
You can draw the waveform! That’s neat.
The build is based on t... | 8 | 3 | [
{
"comment_id": "6372596",
"author": "Niklas Roy",
"timestamp": "2021-08-15T09:34:20",
"content": "Like a mini Fairlight CMI?https://en.wikipedia.org/wiki/Fairlight_CMI",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6372694",
"author": "William Wesley",
... | 1,760,372,984.252912 | ||
https://hackaday.com/2021/08/14/yo-dawg-we-heard-you-like-retrocomputers/ | Yo Dawg, We Heard You Like Retrocomputers | Bryan Cockfield | [
"Retrocomputing"
] | [
"8 bit",
"atari",
"basic",
"c64",
"commodore",
"compile",
"cross-platform",
"emulator",
"kernel",
"python",
"translation"
] | The idea of having software translation programs around to do things like emulate a Super Nintendo on your $3000 gaming computer or, more practically, run x86 software on a new M1 Mac, seems pretty modern since it is so prevalent in the computer world today. The idea of using software like this is in fact much older an... | 20 | 6 | [
{
"comment_id": "6372573",
"author": "Peter",
"timestamp": "2021-08-15T05:23:06",
"content": "I was working on a Connection Machine in an FLGA years ago, and I’d love for someone to do a LISP machine…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6372574",
... | 1,760,372,984.551426 | ||
https://hackaday.com/2021/08/14/making-ferroelectric-solar-cells-better/ | Making Ferroelectric Solar Cells Better | Al Williams | [
"Science",
"Solar Hacks"
] | [
"barium titantate",
"ferroelectric",
"solar cell"
] | Researchers claim that using
several very thin layers of ferroelectric crystals
can lead to significantly better ferroelectric solar cell efficiency. But don’t pull the panels off your roof yet. Conventional cells are still much more efficient than ferroelectric devices — at least, for now.
Unlike conventional silicon-... | 17 | 7 | [
{
"comment_id": "6372569",
"author": "Chris Maple",
"timestamp": "2021-08-15T04:59:38",
"content": "As far as I can tell from the linked article, the best efficiency less than 1% and that’s in the ultraviolet where not much of the sun’s energy gets to the ground. Efficiency in the visible region is ... | 1,760,372,984.896564 | ||
https://hackaday.com/2021/08/14/3d-printed-smart-glasses-put-linux-in-your-face/ | 3D Printed Smart Glasses Put Linux In Your Face | Tom Nardi | [
"The Hackaday Prize",
"Wearable Hacks"
] | [
"2021 Hackaday Prize",
"augmented reality",
"hand tracking",
"head mounted display",
"Pi Zero W",
"wearable"
] | Unimpressed by DIY wearables powered by dinky microcontrollers,
[Teemu Laurila] has been working on a 3D printed head-mounted computer
that puts a full-fledged Linux desktop in your field of view. It might not be as slim and ergonomic as Google Glass, but it more than makes up for it in terms of raw potential.
Featurin... | 20 | 8 | [
{
"comment_id": "6372542",
"author": "Niko",
"timestamp": "2021-08-15T00:24:20",
"content": "It’s so subtle is didn’t even notice he was wearing anything!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6372560",
"author": "Kilian",
"timestamp": "2021-0... | 1,760,372,984.38413 | ||
https://hackaday.com/2021/08/14/the-zeloof-z2-intergrated-circuit-has-100-transistors/ | The Zeloof Z2 Intergrated Circuit Has 100 Transistors | Jenny List | [
"hardware"
] | [
"chip fabrication",
"Chip Printer",
"integrated circuit",
"Sam Zeloof"
] | Back in 2018 we reported on the first silicon integrated circuit to be produced in a homemade chip fab. It was the work of [Sam Zeloof], and his Z1 chip was a modest six-transistor amplifier. Not one to rest on his laurels, he’s back with another chip, this time
the Z2 is a hundred-transistor array
. The Z2 occupies ab... | 31 | 11 | [
{
"comment_id": "6372512",
"author": "Leonard",
"timestamp": "2021-08-14T20:22:40",
"content": "More than 16 times more transistors every three years. We’ll be buying CPU’s from him in 15 years (hoping on a more than linear expansion)",
"parent_id": null,
"depth": 1,
"replies": [
{... | 1,760,372,984.495885 | ||
https://hackaday.com/2021/08/14/surplus-syringes-make-satisfactory-tuner-for-amateur-radio-experimentation/ | Surplus Syringes Make Satisfactory Tuner For Amateur Radio Experimentation | Ryan Flowers | [
"Radio Hacks"
] | [
"amateur radio",
"copper tape",
"ferrite",
"impedance matching",
"syringe",
"variable capacitor",
"variable inductor"
] | Amateur Radio as a hobby has a long history of encouraging experimentation using whatever one might have on hand. When [Tom Essenpreis] wanted to use his 14 MHz antenna outside of its designed frequency range, he knew he’d need an impedance matching circuit. The most common type is an L-Match circuit which uses a varia... | 8 | 4 | [
{
"comment_id": "6372514",
"author": "chango",
"timestamp": "2021-08-14T20:51:01",
"content": "Imagine an electromechanical pneumatic automatic antenna tuner…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6372809",
"author": "some guy",
"tim... | 1,760,372,984.740619 | ||
https://hackaday.com/2021/08/14/goals-and-goalposts/ | Goals And Goalposts | Elliot Williams | [
"Hackaday Columns",
"Rants"
] | [
"feature creep",
"finishing",
"newsletter",
"projects"
] | In the winter, I hatched a vague plan to learn some of the modern unmanned aerial vehicle tech. Everybody needs an autonomous vehicle, and we’ve got some good flying fields within walking distance, so it seemed like it could work. Being me, that meant buying the cheapest gear that could possibly work, building up the p... | 14 | 9 | [
{
"comment_id": "6372478",
"author": "PWalsh",
"timestamp": "2021-08-14T14:43:15",
"content": "Extrinsic motivations are goals, things you get in exchange for being done such as money or likes.Intrinsic motivations are what you get while doing something, and fall into 4 categories: learning somethin... | 1,760,372,985.041753 | ||
https://hackaday.com/2021/08/14/reverse-engineering-a-topfield-vfd-front-panel/ | Reverse Engineering A Topfield VFD Front Panel | Tom Nardi | [
"Parts"
] | [
"consumer electronics",
"front panel",
"Hynix",
"python",
"reverse engineering",
"salvage",
"Topfield",
"uart",
"vfd"
] | Hackers love the warm glow of a vacuum fluorescent display (VFD), and there’s no shortage of dead consumer electronics from which they can be pulled to keep our collective parts bins nicely stocked. Unfortunately, figuring out how to actually drive these salvaged modules can be tricky. But thanks to the efforts of [Lau... | 2 | 1 | [
{
"comment_id": "6372460",
"author": "CMH62",
"timestamp": "2021-08-14T12:46:47",
"content": "Mike S. featured a story on Dave Jones reverse engineering work on VFD’s back 6 years ago:https://hackaday.com/2015/03/04/reverse-engineer-a-vfd-after-exploring-how-they-work/",
"parent_id": null,
"... | 1,760,372,985.086039 | ||
https://hackaday.com/2021/08/14/pomodachi-a-productivity-pet-you-feed-by-working/ | Pomodachi: A Productivity Pet You Feed By Working | Kristina Panos | [
"Lifehacks",
"Microcontrollers"
] | [
"HalloWing M4 Express",
"Kailh",
"Kailh box whites",
"NeoKey Featherwing",
"pomodoro",
"productivity",
"the pomodoro technique"
] | Being productive doesn’t have to be a lonely endeavor. Even if you’re a lone wolf, who wouldn’t benefit from having a cute little productivity pet to cheer them on? That’s the idea behind [droxpopuli]’s
Pomodachi, which combines a hardware implementation of the Pomodoro technique with a virtual pet
. It adds some fun, ... | 1 | 1 | [
{
"comment_id": "6372627",
"author": "Electric Ed",
"timestamp": "2021-08-15T14:57:05",
"content": "Wikipedia tells me the name is from the Italian ‘pomodoro’, but ‘pomo’ is the Finnish word for ‘boss’. That’s just to creepy if it is a coincidence. At least for Finns.",
"parent_id": null,
"d... | 1,760,372,984.98706 | ||
https://hackaday.com/2021/08/13/usb-mouse-hack-for-pachyderm-protection/ | USB Mouse Hack For Pachyderm Protection | Ryan Flowers | [
"classic hacks",
"Peripherals Hacks"
] | [
"arduino",
"earthquake detector",
"magnetic damper",
"plumbing supplies",
"PVC",
"seismic",
"seismometer",
"usb mouse"
] | When most of us think of seismometers, our minds conjure up images of broken buildings, buckled roads, and search and rescue teams digging through rubble. But when [Subir Bhaduri] his team were challenged with solving real world problems as frugally as possible as part of the 2020 Frugal Science course, he thought of f... | 25 | 7 | [
{
"comment_id": "6372450",
"author": "Andrew",
"timestamp": "2021-08-14T10:57:17",
"content": "I like it, but why not put the mouse at the other end? i.e. place the mouse next to the ‘scratched plastic’, and even use the mouse’s LED illumination. As the central part vibrates, so the mouse sensor wil... | 1,760,372,985.335939 | ||
https://hackaday.com/2021/08/13/googles-periodic-table/ | Google’s Periodic Table | Al Williams | [
"chemistry hacks"
] | [
"Chemistry",
"elements",
"google",
"periodic table",
"tom lehrer"
] | One of the nice things about the Internet is that you don’t need huge reference books anymore. You really don’t need big wall charts, either. A case in point: what science classroom didn’t have a periodic table of the elements? Now you can just look up an
interactive one
from Google. They say it is 3D and we suppose th... | 44 | 14 | [
{
"comment_id": "6372402",
"author": "Maave",
"timestamp": "2021-08-14T02:53:38",
"content": "The internet is an amazing library if you know how to search it. It seems my friends have issues witha) picking the right keywordsb) filtering garbage, finding the relevant informationLet me know if anyone ... | 1,760,372,985.218864 | ||
https://hackaday.com/2021/08/13/filtering-coffee-through-3d-printed-glass/ | Filtering Coffee Through 3D Printed Glass | Lewin Day | [
"3d Printer hacks"
] | [
"coffee",
"glass-impregnated filament",
"impregnated filament"
] | Typically, when we think of 3D printing, we think of gooey melted plastics or perhaps UV-cured resins. However, there’s a great deal of research going on around printing special impregnated filaments with alternative materials inside. [Ahron Wayne] has been working on these very materials, and decided to make himself a... | 11 | 5 | [
{
"comment_id": "6372409",
"author": "Steven Gann",
"timestamp": "2021-08-14T03:30:00",
"content": "Finally, a more overcomplicated and pretentious way to brew coffee than a Chemex. I suspect I’ll start seeing setups like this all over my office soon.",
"parent_id": null,
"depth": 1,
"re... | 1,760,372,985.140497 | ||
https://hackaday.com/2021/08/13/hacked-ikea-air-quality-sensor-gets-custom-pcb/ | Hacked IKEA Air Quality Sensor Gets Custom PCB | Tom Nardi | [
"hardware",
"Microcontrollers"
] | [
"air quality",
"custom PCB",
"esp-12f",
"ESP8266",
"ikea",
"retrofit",
"sensor"
] | Last month we brought word of the IKEA VINDRIKTNING, a $12 USD air quality sensor that could easily be upgraded to log data over the network with the addition of an ESP8266. It only took a couple of wires soldered to the original PCB, and since there was so much free space inside the enclosure, you didn’t even have to ... | 19 | 7 | [
{
"comment_id": "6372330",
"author": "Ostracus",
"timestamp": "2021-08-13T20:16:38",
"content": "Interesting. Stick one outside and see what climate change is doing to the environment.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6372345",
"author"... | 1,760,372,985.27775 | ||
https://hackaday.com/2021/08/13/rotary-time-tracker-puts-a-new-spin-on-productivity/ | Rotary Time Tracker Puts A New Spin On Productivity | Kristina Panos | [
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"gray code",
"led",
"magnets",
"photoresistor",
"rotary encoder"
] | Like many of us, [quincy] feels the distracting pull of non-work programs on what has become a mixed-use computer. So what’s the answer to the puzzle of work-life balance? We’re not sure, but time management and keeping track of tasks will probably get you most of the way there. The only problem is that keeping track o... | 3 | 3 | [
{
"comment_id": "6372320",
"author": "Xasin",
"timestamp": "2021-08-13T19:55:10",
"content": "Oh, that’s a wonderful way to do the dial.Magnets do have a satisfying snap action after all, which must be quite pleasant :DAnd great, now I want to build my own version of this as a sort of smart home con... | 1,760,372,985.377145 | ||
https://hackaday.com/2021/08/13/retrotechtacular-las-hilarious-subway-safety-film-from-1992/ | Retrotechtacular: LA’s Hilarious Subway Safety Film From 1992 | Lewin Day | [
"Retrotechtacular",
"Transportation Hacks"
] | [
"retrotechtacular",
"subway"
] | Subways! They’ve been around for an awfully long time; almost as long as modern railways themselves, believe it or not. Building underground was undertaken in earnest by those in the 19th century, who set out to build networks of stations to allow residents to get around a city quickly and effectively.
That fact should... | 17 | 8 | [
{
"comment_id": "6372281",
"author": "Iván Stepaniuk",
"timestamp": "2021-08-13T17:11:34",
"content": "I recently learned LA has a “smog season”. Something must have gone terrybly wrong with this city’s public transport policy.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,985.563543 | ||
https://hackaday.com/2021/08/13/hackaday-podcast-131-have-a-heart-transputer-pi-just-the-wing-and-a-flipped-cable-fries-radio/ | Hackaday Podcast 131: Have A Heart, Transputer Pi, Just The Wing, And A Flipped Cable Fries Radio | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Mike Szczys and Elliot Williams recount the past week in hardware hacking. There’s a new Tamagochi hack that runs the original ROM on plain old microcontrollers like the STM32. Did you know you can blast the Bayer filter off a camera sensor using a powerful laser and the sensor will still work? We didn... | 1 | 1 | [
{
"comment_id": "6372505",
"author": "Bret Tschacher",
"timestamp": "2021-08-14T19:26:10",
"content": "I found it interesting that as I was reading this morning, I found out one of the people responsible for the early 70’s TV program, The Banana Split Gang was the inventor of the artificial heart !"... | 1,760,372,985.601847 | ||
https://hackaday.com/2021/08/13/audio-cassette-tape-data-retrospective/ | Audio Cassette Tape Data Retrospective | Al Williams | [
"Retrocomputing"
] | [
"Amstrad",
"audio cassette",
"audio tape",
"cassette",
"cassette drive",
"tape"
] | It has been a long time since we stored software and computer data on audiotape. But it used to be the
de facto
standard for hobby computers and [Noel] has
a great video about the Amstrad’s system
(embedded below) which was pretty typical and how the process could be sped up since today, you have perfect audio reproduc... | 12 | 4 | [
{
"comment_id": "6372268",
"author": "Wasilków",
"timestamp": "2021-08-13T15:51:33",
"content": "is possible using cassete to internet? I download data trought cassete and put to the terminal/browserseeking cassete is my data sending to ‘cassete’ internet.",
"parent_id": null,
"depth": 1,
... | 1,760,372,985.709906 | ||
https://hackaday.com/2021/08/13/this-week-in-security-john-deere-proxylogin-detailed-and-pneumatic-tubes/ | This Week In Security: John Deere, ProxyLogin Detailed, And Pneumatic Tubes | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"microsoft exchange",
"Series of Tubes",
"This Week in Security"
] | We’ve covered
the right-to-repair saga
, and one of the companies that have become rather notorious is John Deere. The other side to the poorly managed interconnected mess is security issues. There’s a certain irony to how this story started: Somebody noticed that John Deere equipment didn’t have any CVEs at all. A nor... | 14 | 4 | [
{
"comment_id": "6372279",
"author": "Stellan",
"timestamp": "2021-08-13T17:03:02",
"content": "Fixing some of those vulnerabilities in the John Deere software will also cause problems for many farms. Several of those vulnerabilities are used to circumvent the “Authorized Repair” checks that preven... | 1,760,372,985.66013 | ||
https://hackaday.com/2021/08/13/doom-on-a-desk-phone-is-just-the-tip-of-the-iceburg/ | DOOM On A Desk Phone Is Just The Tip Of The Iceberg | Tom Nardi | [
"Linux Hacks",
"Software Hacks"
] | [
"Binwalk",
"desk phone",
"does it run doom",
"doom",
"Embedded Linux",
"serial port",
"u-boot"
] | These days we expect even the cheapest of burner smartphones to feature a multi-core processor, at least a gigabyte of RAM, and a Linux-based operating system. But obviously those sort of specs are unnecessary for an old school POTS desktop phone. Well, that’s what we thought.
Then [Josh Max] wrote in to tell us about ... | 23 | 10 | [
{
"comment_id": "6372245",
"author": "DainBramage",
"timestamp": "2021-08-13T13:46:51",
"content": "That phone plays DOOM faster than my 1993 PC did! (and it was a decent computer at the time)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6372270",
... | 1,760,372,985.768966 | ||
https://hackaday.com/2021/08/13/no-hole-in-one-perseverance-strikes-out-on-first-mars-core-attempt/ | No Hole In One: Perseverance Strikes Out On First Mars Core Attempt | Dan Maloney | [
"News",
"Space"
] | [
"bore",
"drill",
"mars",
"nasa",
"Perseverance",
"robot",
"rover",
"sample"
] | There’s a military adage that no plan survives first contact with the enemy. While we haven’t gone to war with Mars, at least not yet, it does seem to be a place where the best-laid scientific plans are tested in the extreme. And
the apparent failure of Perseverance to retrieve its first Martian core sample
is yet anot... | 19 | 7 | [
{
"comment_id": "6372209",
"author": "betsuin",
"timestamp": "2021-08-13T11:10:55",
"content": "I can see a volcanic cone shape suggesting the core became some kind of flour and piled up round the sides.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6372304... | 1,760,372,985.824694 | ||
https://hackaday.com/2021/08/12/virtual-racers-battle-it-out-on-portable-ws2812-track/ | Virtual Racers Battle It Out On Portable WS2812 Track | Tom Nardi | [
"Games",
"LED Hacks"
] | [
"1D",
"racing game",
"RGB LED",
"ws2812"
] | Sure modern video games are impressive, but you certainly don’t need a 4K display or high speed Internet connection to have a good time. For a perfect example, take a look at
this unique one-dimensional racing game put together by [mircemk]
. This variation of [Gerardo Barbarov Rostan]’s Open LED Race project has been ... | 7 | 5 | [
{
"comment_id": "6372156",
"author": "SwAkE",
"timestamp": "2021-08-13T06:38:38",
"content": "Dear Tom Nardi, my brain does not succeed in computing the sentence with: “that a look at this” I believe it would benefit from changing the first word to “take”.This game reminds me of an arcade game back ... | 1,760,372,985.955398 | ||
https://hackaday.com/2021/08/12/arduino-finds-treasure/ | Arduino Finds Treasure | Bryan Cockfield | [
"Arduino Hacks"
] | [
"arduino",
"coils",
"ferrous",
"metal detector",
"nano",
"nonferrous",
"range"
] | A beach is always a relaxing summer vacation destination, a great place to hang out with a drink and a book or take a swim in the ocean. For those who need a more active beach-going activity with an electronics twist, though, metal detecting is always a popular choice too. And, of course, with an Arduino and some know-... | 6 | 4 | [
{
"comment_id": "6372205",
"author": "Paul Geraghty",
"timestamp": "2021-08-13T10:48:35",
"content": "Great, add a radio and GPS, stick it on the bottom of your robot, and let it loose in the fields. Coins, gold, treasure, bullets, unexploded ordnance, yeah.",
"parent_id": null,
"depth": 1,... | 1,760,372,985.996296 | ||
https://hackaday.com/2021/08/12/how-to-make-resin-prints-crystal-clear/ | How To Make Resin Prints Crystal Clear | Kristina Panos | [
"how-to",
"LED Hacks"
] | [
"crystals",
"jewelry",
"led",
"led jewelry",
"resin 3d printer",
"resin printer"
] | [Matou] has always been entranced by the beauty of natural crystal formations [and has long wished for a glowing crystal pendant]. Once he got a resin-based 3D printer, he was majorly disappointed to find out that although transparent resin prints look like delicious candy when they’re still wet, they turn cloudy and d... | 19 | 10 | [
{
"comment_id": "6372095",
"author": "a_do_z",
"timestamp": "2021-08-12T23:36:47",
"content": "This left me wondering if a polished+uv resin coated part would have given a better finish.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6372114",
"autho... | 1,760,372,986.049574 | ||
https://hackaday.com/2021/08/12/incredibly-slow-films-now-playing-in-dazzling-color/ | Incredibly Slow Films, Now Playing In Dazzling Color | Tom Nardi | [
"home entertainment hacks",
"Microcontrollers",
"Video Hacks"
] | [
"digital photo frame",
"e-ink",
"e-paper",
"ffmpeg",
"stm32",
"video",
"waveshare"
] | Back in 2018 we covered a project that would break a video down into its individual frames and slowly cycle through them on an e-paper screen. With a new image pushed out every three minutes or so, it would take thousands of hours to “watch” a feature length film. Of course, that was never the point. The idea was to tu... | 8 | 4 | [
{
"comment_id": "6372108",
"author": "Robot",
"timestamp": "2021-08-13T00:54:19",
"content": "Ohh. This is lovely. I’d totally purchase a kit. 300 days is pretty impressive and I’d be tempted to extend the battery life with indoor PV cells (not a joke! They’re a thing.)",
"parent_id": null,
... | 1,760,372,986.096041 | ||
https://hackaday.com/2021/08/12/a-digital-white-cane-for-the-visually-impaired/ | A Digital White Cane For The Visually Impaired | Chris Wilkinson | [
"The Hackaday Prize",
"Wearable Hacks"
] | [
"2021 Hackaday Prize",
"assistance",
"distance sensor",
"hackaday.io",
"visual impairment",
"wearable"
] | The white cane (and its many variants) is an everyday carry for many visually impaired people. This low-tech tool allows those afflicted by visual impairment to safely navigate the world around them, and has been ubiquitous in many parts of the world for decades. [Madaeon] has been hard at work going one step further i... | 22 | 9 | [
{
"comment_id": "6372013",
"author": "Bob",
"timestamp": "2021-08-12T18:49:56",
"content": "This is not a substitute for a cane. Aside from the possible detection of objects at head height this lacks many of the features of a cane. A cane identifies the user as visually impaired by its distinctive... | 1,760,372,986.210533 | ||
https://hackaday.com/2021/08/12/teslas-megapack-battery-burned-for-days-in-grid-storage-fire/ | Tesla’s Megapack Battery Burned For Days In Grid Storage Fire | Lewin Day | [
"Current Events",
"Featured",
"News",
"Slider"
] | [
"battery",
"grid storage",
"neoen",
"tesla"
] | Lithium rechargeable batteries have been heralded for their high-density energy storage, enabling all manner of technologies to come to fruition. From drones to practical electric cars to large-scale grid storage, the applications are endless.
The fire as seen from a drone overhead. Source: Twitter/
@FireRescueVic
Howe... | 174 | 35 | [
{
"comment_id": "6371970",
"author": "Antron Argaiv",
"timestamp": "2021-08-12T17:14:48",
"content": "You would think they’d space them out a bit more so one burning module couldn’t ignite its neighbours…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "637198... | 1,760,372,986.80235 | ||
https://hackaday.com/2021/08/12/who-needs-pin-headers/ | Who Needs Pin Headers? | Chris Lott | [
"hardware",
"Tech Hacks"
] | [
"pin headers",
"pogo clamp",
"pogo pins",
"solderless"
] | [Martin] sent this query, along with the lead photo, into the tip line, and he makes a good point. Most development and evaluation boards have multiple rows of pin headers, often arriving loose in the package — soldering is left to the user. In an abundance of caution, we usually design our prototype boards with many p... | 31 | 19 | [
{
"comment_id": "6371953",
"author": "josephsleary",
"timestamp": "2021-08-12T16:07:13",
"content": "Very Nice. I need this in my life",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6371954",
"author": "IIVQ/Tijmen Stam",
"timestamp": "2021-08-12T16:12... | 1,760,372,986.31736 | ||
https://hackaday.com/2021/08/12/review-mini-amg8833-thermal-camera/ | Review: Mini AMG8833 Thermal Camera | Jenny List | [
"Hackaday Columns",
"News",
"Reviews",
"Slider"
] | [
"AMG8833",
"infra red",
"thermal camera"
] | In our ceaseless quest to bring you the best from the cheaper end of the global electronics markets, there are sometimes gadgets that we keep an eye on for a while because when they appear they’re just a little bit too pricey to consider cheap.
Today’s subject is just such a device, it’s a minimalist infra-red camera u... | 29 | 14 | [
{
"comment_id": "6371924",
"author": "rewolff",
"timestamp": "2021-08-12T14:36:19",
"content": "My first guess for “CPU” would be that it is an GD32E230. The G4 would mean it’s a (counting the pins in the picture left as an exercise) with 16k flash.",
"parent_id": null,
"depth": 1,
"rep... | 1,760,372,986.507794 | ||
https://hackaday.com/2021/08/12/minimum-viable-quad-build-shows-what-starting-from-nothing-can-accomplish/ | Minimum Viable Quad Build Shows What Starting From Nothing Can Accomplish | Dan Maloney | [
"drone hacks"
] | [
"iterative design",
"lean",
"minimum viable product",
"MVP",
"quad",
"uav"
] | While it’s great to be experienced and have a ton of specialist knowledge needed to solve a problem, there’s something liberating about coming at things from a position of ignorance. Starting at ground zero can lead you down the path less traveled, and reveal solutions that might otherwise not have presented themselves... | 11 | 5 | [
{
"comment_id": "6371881",
"author": "norro211",
"timestamp": "2021-08-12T11:30:57",
"content": "It is worth noting that MVP is not actually about reinventing the wheel or ignoring established knowledge. It might be fun to do that and learn for yourself but it is a misuse of the terminology.",
"... | 1,760,372,986.594706 | ||
https://hackaday.com/2021/08/12/3d-prints-of-steel-um-pla-rather/ | 3D Prints Of Steel — Um — PLA, Rather | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"beam",
"beams",
"steel beams",
"structural beam",
"structural beams"
] | Need a steel beam? You can
3D print PLA beams
that are as strong as a steel beam of equivalent weight according to [RepRap]. The
Python code for FreeCAD
generates a repeating structure especially well suited for belt printers that can print a beam of any length. Keep in mind, of course, given two things that weigh the ... | 24 | 9 | [
{
"comment_id": "6371851",
"author": "Coley Christopher Logan Jr",
"timestamp": "2021-08-12T08:37:21",
"content": "This definitely seems like it could be useful. If for nothing else but mocking up a quick prototype.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id"... | 1,760,372,986.377672 | ||
https://hackaday.com/2021/08/11/thrashed-damaged-nes-controller-gets-brought-back-to-life/ | Thrashed, Damaged NES Controller Gets Brought Back To Life | Lewin Day | [
"Nintendo Hacks"
] | [
"controller",
"nes",
"nintendo"
] | Electronics might as well be a magical black box to some people. Where some would see a broken NES controller destined for the bin, [Taylor] saw the opportunity for a repair. Thus,
the damaged hardware was brought back into useful service.
The controller was bought as part of a job lot, and was heavily damaged when it ... | 6 | 5 | [
{
"comment_id": "6371869",
"author": "danjovic@gmail.com",
"timestamp": "2021-08-12T10:01:16",
"content": "I prefer to use enamelled wire for such kind of pcb repairs (and to to build electronics prototypes too).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "... | 1,760,372,986.54768 | ||
https://hackaday.com/2021/08/11/materials-for-self-learners/ | Materials For Self Learners | Chris Lott | [
"Misc Hacks"
] | [
"learning",
"reference materials",
"self learning"
] | [João Nuno Carvalho] is a passionate learner. Software engineer by day, he studies all different branches of science and engineering in his spare time. He has organized an impressive list of study / reference materials on a wide variety of subjects that interest him, from aeronautical engineering to quantum mechanics a... | 13 | 9 | [
{
"comment_id": "6371801",
"author": "Ostracus",
"timestamp": "2021-08-12T04:03:54",
"content": "” Check these out if you want to brush up on a topic — they include not only text books and reference volumes, but forums, blogs, YouTube links, etc.”I’m afraid some of that will not survive link rot.",
... | 1,760,372,986.904359 | ||
https://hackaday.com/2021/08/11/wireless-earbuds-charge-themselves/ | Wireless Earbuds Charge Themselves | Bryan Cockfield | [
"Wireless Hacks"
] | [
"dc-dc",
"deadbug",
"earbuds",
"headphones",
"solar",
"solar cell",
"step up converter",
"wireless"
] | As more and more ports are removed from our smart devices, it seems that we have one of two options available for using peripherals: either buy a dongle to continue to use wired devices, or switch to Bluetooth and deal with perpetually maintaining batteries. If neither of these options suits you, though, there’s a thir... | 20 | 6 | [
{
"comment_id": "6371762",
"author": "Gravis",
"timestamp": "2021-08-11T23:19:05",
"content": "Alternative solution attach a couple wires to each and send both signal and power through it. Never needs charging, much simpler electronics, and you can’t lose one.",
"parent_id": null,
"depth":... | 1,760,372,986.855686 | ||
https://hackaday.com/2021/08/11/3d-printing-steel-parts-at-home-via-special-filaments/ | 3D Printing Steel Parts At Home Via Special Filaments | Lewin Day | [
"3d Printer hacks"
] | [
"3d printing metal",
"aerospike",
"metal 3d printer",
"rocket",
"rocket nozzle",
"rocketry",
"steel"
] | Rocket engines are great for producing thrust from fire and fury, but they’re also difficult to make. They require high-strength materials that can withstand the high temperatures involved. [Integza], however, has tried for a long time to 3D print himself a working rocket engine. His latest attempt involves
printing an... | 31 | 13 | [
{
"comment_id": "6371707",
"author": "josephsleary",
"timestamp": "2021-08-11T20:05:35",
"content": "1stNeat",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6371730",
"author": "Rallen",
"timestamp": "2021-08-11T20:50:17",
"content": "Many tomatoes ... | 1,760,372,987.062391 | ||
https://hackaday.com/2021/08/11/a-stress-monitor-designed-specifically-to-help-you-work-from-home/ | A Stress Monitor Designed Specifically To Help You Work From Home | Orlando Hoilett | [
"Medical Hacks",
"Wearable Hacks"
] | [
"Blues wireless notecard",
"coronavirus",
"gsr",
"nRF52840",
"stress",
"Svelte",
"twilio",
"work from home"
] | There are quite a bit of mixed emotions regarding working from home. Some people love it and are thriving like they haven’t before, but others are having a bit of a hard time with it all. [Brandon] has been working from home for the last 12 years, but even after so many years of managing this type of work culture, he a... | 10 | 8 | [
{
"comment_id": "6371694",
"author": "rpavlik",
"timestamp": "2021-08-11T19:19:12",
"content": "Ooh, I like the creative sensing of “too loud in here, take a break to calm down”. I wonder what other useful indicators there could be that I could use in such a thing.",
"parent_id": null,
"dept... | 1,760,372,987.105609 | ||
https://hackaday.com/2021/08/11/figuring-out-earths-past-climate-through-paleoclimatology-and-its-lessons-for-today/ | Figuring Out Earth’s Past Climate Through Paleoclimatology And Its Lessons For Today | Maya Posch | [
"Featured",
"Interest",
"Science"
] | [
"climate change",
"paleoclimatology"
] | Roughly 4.6 billion years ago, Earth would gain its first atmosphere, yet this was an atmosphere that was completely unlike the atmosphere we know today. Today’s oxygen-rich atmosphere we’re familiar with didn’t form until the Proterozoic, between 2,500 and 541 million years ago, when oxygen-producing bacteria killed o... | 28 | 11 | [
{
"comment_id": "6371705",
"author": "DSchultz",
"timestamp": "2021-08-11T19:59:38",
"content": "The anthropocene probably begins far earlier. Around the beginning of agriculture when land clearance (CO2) and rice farming (CH4) became significant. See the work of Ruddiman.",
"parent_id": null,
... | 1,760,372,987.227576 | ||
https://hackaday.com/2021/08/11/xbox-flexure-joystick-puts-you-in-the-pilots-seat/ | Xbox Flexure Joystick Puts You In The Pilot’s Seat | Tom Nardi | [
"Peripherals Hacks",
"Xbox Hacks"
] | [
"compliant mechanism",
"flexture",
"flight stick",
"Joystick",
"microsoft flight simulator",
"xbox one"
] | With the recent release of
Microsoft Flight Simulator
on the Xbox Series X|S there’s never been a better time to get a flight stick for the console, and as you might imagine, there are a number of third party manufacturers who would love to sell you one. But where’s the fun in that?
If you’ve got a fairly well tuned 3D... | 6 | 6 | [
{
"comment_id": "6371657",
"author": "sjm4306",
"timestamp": "2021-08-11T17:09:25",
"content": "That’s really neat, print in place and flexure mechanisms in 3D printing are awesome.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6371660",
"author": "Josh K... | 1,760,372,987.156352 | ||
https://hackaday.com/2021/08/11/should-you-be-able-to-repair-it-we-think-so/ | Should You Be Able To Repair It? We Think So. | Jenny List | [
"Hackaday Columns",
"Repair Hacks",
"Slider"
] | [
"parts",
"repair",
"right to repair",
"servicing"
] | You own it, you should be able to fix it. So much equipment on sale today has either been designed to be impossible to maintain, unnecessarily too complex to maintain, maintainable only with specialist tooling only available to authorised service agents, or with no repair parts availability. It’s a hot-button issue in ... | 179 | 38 | [
{
"comment_id": "6371589",
"author": "Ken",
"timestamp": "2021-08-11T14:30:50",
"content": "First step, mandate replaceable batteries. I have multiple devices ( watches, phones) that are not designed to allow battery replacement. The life of the device is engineered to be gated by the life of the ... | 1,760,372,987.441646 | ||
https://hackaday.com/2021/08/11/practical-print-makes-ipad-a-magnificent-eye-piece/ | Practical Print Makes IPad A Magnificent Eye Piece | Ryan Flowers | [
"Tool Hacks"
] | [
"3D printable",
"3d printed",
"magnification",
"magnifier",
"magnify",
"soldering",
"tool build"
] | Be it the ever shrinking size of components, the miniscule size of the printing on such pieces, or the steady march of time that makes visits to the optometrist an annual ritual, many of us could use some assistance when things start getting fuzzy at the workbench. Arm-mounted LED magnifying lenses can be a handy helpe... | 9 | 5 | [
{
"comment_id": "6371577",
"author": "Nick",
"timestamp": "2021-08-11T13:38:38",
"content": "Good idea! I wonder if I can use the built in camera app on my ancient iPad mini, might breathe some new life into it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6... | 1,760,372,987.483696 | ||
https://hackaday.com/2021/08/11/a-whole-lot-of-stepper-motors-make-the-most-graceful-7-segment-displays/ | A Whole Lot Of Stepper Motors Make The Most Graceful 7-Segment Displays | Mike Szczys | [
"clock hacks"
] | [
"7 segment",
"7-segment display",
"charlie sheen",
"mechanical display",
"servo",
"servo motors"
] | Over the years we’ve seen many takes on the 7-segment display. Among the most interesting are the mechanical versions of what is most often an LED-based item. This week’s offering is from [John Burd], who published a very odd video showing off the clock he made. But look beyond YouTuber antics and you’ll see
the steppe... | 23 | 9 | [
{
"comment_id": "6371508",
"author": "mmmdee",
"timestamp": "2021-08-11T08:14:11",
"content": "Absolutely mesmerizing motion, entertaining video. I have not heard of Cameo and found it to be an amusing addition to the presentation. I really had not expected the clock to be that large, but in the app... | 1,760,372,987.547643 | ||
https://hackaday.com/2021/08/10/homebrew-rom-reader-saves-data-from-a-vintage-minicomputer/ | Homebrew ROM Reader Saves Data From A Vintage Minicomputer | Dan Maloney | [
"Retrocomputing"
] | [
"74LS161",
"arduino",
"backup",
"counter",
"minicomputer",
"nano",
"rom"
] | Have you ever heard of a Centurion minicomputer? If not, don’t feel bad — we hadn’t either, until [David Lovett] stumbled upon a semi-complete version of the 1980-ish mini in all its wood-trimmed, dust-encased glory. And what does a hacker do with such an acquisition but attempt to get it going again?
Of course, gettin... | 23 | 4 | [
{
"comment_id": "6371490",
"author": "Thijzer",
"timestamp": "2021-08-11T06:31:28",
"content": "There will come an era in which men will say: “He could as well have used an Arduino.”That day will come.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6371529",... | 1,760,372,987.606716 | ||
https://hackaday.com/2021/08/10/freebsd-experiment-rethinks-the-os-install/ | FreeBSD Experiment Rethinks The OS Install | Tom Nardi | [
"Software Development"
] | [
"BSD",
"freebsd",
"headless",
"installer",
"remote",
"web browser",
"web interface"
] | While the medium may have evolved from floppy disks to DVDs and USB flash drives, the overall process of installing an operating system onto a desktop computer has been more or less the same since the 1980s. In a broad sense you could say most OS installers require more clicking than typing these days, but on the whole... | 31 | 13 | [
{
"comment_id": "6371456",
"author": "John",
"timestamp": "2021-08-11T02:47:21",
"content": "Perhaps it is limited bfor people looking for niche hardware requirements, but for modern computers and users who want to try out something new/different, it sounds like a good step forward. It’s not the new... | 1,760,372,987.691195 | ||
https://hackaday.com/2021/08/10/esp8266-network-meters-show-off-unique-software/ | ESP8266 Network Meters Show Off Unique Software | Tom Nardi | [
"Network Hacks",
"Software Development"
] | [
"Arduino libraries",
"ESP32",
"ESP8266",
"network monitor"
] | Like the “Three Seashells” in
Demolition Man
, this
trio of bright yellow network monitors created by [David Chatting] might be difficult to wrap your head around at first glance
. They don’t have any obvious controls, and their constantly moving indicators are abstract to say the least. But once you understand how to ... | 15 | 4 | [
{
"comment_id": "6371441",
"author": "Fred",
"timestamp": "2021-08-10T23:48:51",
"content": "I can see this being weaponized for remote delivery of a drone bomb to a particular cellphone. Just need the MAC address. It’ll sit there waiting for the device to be in range, then launch, get within a cert... | 1,760,372,987.852746 | ||
https://hackaday.com/2021/08/10/making-a-left-handed-nes-controller/ | Making A Left-Handed NES Controller | Lewin Day | [
"Nintendo Hacks"
] | [
"nes",
"nintendo"
] | The controller for the original Nintendo Entertainment System is a classic, but perhaps not best known for its adherence to good ergonomic principles. Regardless, it can grow awkward to use for long stretches of time. To help alleviate this,
[Taylor] whipped up an easy way to convert a NES controller to left-handed ope... | 19 | 11 | [
{
"comment_id": "6371406",
"author": "jalnl",
"timestamp": "2021-08-10T20:59:56",
"content": "The funny thing is, arcades switched from a right-handed joystick to a left-handed one to make the games harder. Now we’re so used to dpads/sticks on the left-hand side, that left-handed people want them on... | 1,760,372,987.7964 | ||
https://hackaday.com/2021/08/10/building-an-army-of-faux-cameras-in-the-name-of-art/ | Building An Army Of Faux Cameras In The Name Of Art | Tom Nardi | [
"Art",
"Microcontrollers"
] | [
"art installation",
"ESP-Now",
"ESP8266",
"privacy",
"surveillance",
"surveillance state"
] | After taking mental note of the number of surveillance cameras pointed at him while standing in line at the local Home Depot,
[Mac Pierce] was inspired to create
A Scanner Darkly
.
The art installation uses beams of light projected by mock security cameras to create a dot-matrix character display on the opposing wall, ... | 9 | 6 | [
{
"comment_id": "6371405",
"author": "Pardalis",
"timestamp": "2021-08-10T20:56:23",
"content": "I don’t know about this. Reproducing presumably referenced equipment with 3D prints still seems wasteful to me, and the final install doesn’t have the punch it could. Now, if those were ultra-cheap proje... | 1,760,372,987.738458 | ||
https://hackaday.com/2021/08/09/animation-in-education-1950s-style/ | Animation In Education, 1950’s Style | Chris Lott | [
"Art",
"Science"
] | [
"animation",
"antenna theory",
"education",
"electromagnetism",
"National Film Board of Canada",
"Royal Canadian Air Force",
"training"
] | Back before the days of computers, animation was drawn by hand. We typically think of cartoons and animated feature films, but there were other genres as well. For example, animation was also used in educational and training films. [Javier Anderson] has tracked down a series of antenna and RF training videos from the R... | 8 | 3 | [
{
"comment_id": "6371204",
"author": "Robert Smith",
"timestamp": "2021-08-10T02:39:55",
"content": "These vids used some of the very first CGI:https://www.youtube.com/playlist?list=PL8_xPU5epJddRABXqJ5h5G0dk-XGtA5cZ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id... | 1,760,372,989.57282 | ||
https://hackaday.com/2021/08/09/relay-logic-nixie-tube-clock-checks-all-the-boxes/ | Relay Logic Nixie Tube Clock Checks All The Boxes | Ryan Flowers | [
"clock hacks",
"hardware"
] | [
"clock",
"cmos logic",
"led",
"nixie",
"nixie tubes",
"relay",
"relay logic",
"relays"
] | There are a few words in the electrical engineering lexicon that will perk any hardware hacker’s ears. The first of course is “Nixie tubes” with their warm cold war era ambiance and nostalgia inducing aura. A close second is “relay logic”. Between their place in computing and telecom history and the way a symphony of c... | 5 | 5 | [
{
"comment_id": "6371174",
"author": "mrehorst",
"timestamp": "2021-08-09T23:22:33",
"content": "Better get some spare relays for the seconds counter!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6371180",
"author": "steve",
"timestamp": "2021-08-09T... | 1,760,372,989.721244 | ||
https://hackaday.com/2021/08/09/improving-oled-vu-meters-with-a-little-physics/ | Improving OLED VU Meters With A Little Physics | Tom Nardi | [
"Microcontrollers",
"Software Hacks"
] | [
"oled",
"physics",
"VU meter"
] | Last month we featured a project that aimed to recreate the iconic mechanical VU meter with an Arduino and a common OLED display. It was cheap and easy to implement, and promised to bring a little retro style to your otherwise thoroughly modern project.
[sjm4306] liked the idea, but thought it was a tad too stiff.
So h... | 23 | 12 | [
{
"comment_id": "6371114",
"author": "Michael Black",
"timestamp": "2021-08-09T20:16:17",
"content": "As I recall, a proper VU meter is well specified, including how fast it follows the signal.But most of the time, hobbyists were deally with cheap meters that showed relative levels.",
"parent_i... | 1,760,372,989.819528 | ||
https://hackaday.com/2021/08/09/using-a-laser-to-blast-away-a-bayer-array/ | Using A Laser To Blast Away A Bayer Array | Stephen Ogier | [
"Laser Hacks"
] | [
"lasers",
"optics",
"Pi Cam",
"raspberry pi",
"Raspberry pi camera",
"spectrometer",
"spectroscope"
] | A Bayer array, or Bayer filter, is what lets a digital camera take color photos. It’s an array of tiny color filters that sit on top of a camera’s CCD. The filter makes it so that each sub-pixel in the image sensor only sees red, green, or blue light. The Bayer filter is an elegant tool that gives us color digital phot... | 47 | 20 | [
{
"comment_id": "6371065",
"author": "Greg Garriss",
"timestamp": "2021-08-09T18:47:44",
"content": "Using a laser to remove an optical filter ( intentionally ) is certainly an interesting approach to making a B&W camera.",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,372,989.993449 | ||
https://hackaday.com/2021/08/09/a-new-flying-car-illustrates-the-same-old-problems/ | A New Flying Car Illustrates The Same Old Problems | Lewin Day | [
"car hacks",
"Hackaday Columns",
"Slider"
] | [
"car",
"flying car"
] | For almost as long as there have been cars and planes, people have speculated that one day we will all get around in flying cars. They’d allow us to “avoid the traffic” by flying through the air instead of sitting in snarling traffic jams on the ground.
The Klein Vision AirCar hopes to be just such a panacea to our mod... | 98 | 28 | [
{
"comment_id": "6371031",
"author": "Tom Brusehaver",
"timestamp": "2021-08-09T17:16:16",
"content": "The reasons listed above (flight plans… Harder to fly than drive) aren’t the reason these flying cars don’t work.They don’t work because a flying car doesn’t do flying or driving well.A car with he... | 1,760,372,990.125576 | ||
https://hackaday.com/2021/08/09/vintage-displays-hack-chat-with-fran-blanche/ | Vintage Displays Hack Chat With Fran Blanche | Dan Maloney | [
"Hackaday Columns"
] | [
"Bina-View",
"electroluminescent",
"G-Force 1",
"Hack Chat",
"Nimo",
"nixie",
"retro",
"vacuum fluorescent display",
"vfd",
"vintage"
] | Join us on Wednesday, August 11 at noon Pacific for the
Vintage Displays Hack Chat
with
Fran Blanche
!
In terms of ease of integration and density of the information that can be shown, it’s hard to argue with the fact that modern displays like LCD panels are anything but superior to the character-based displays of yore... | 1 | 1 | [
{
"comment_id": "6372221",
"author": "Denis V",
"timestamp": "2021-08-13T12:06:47",
"content": "Fran’s absolutely amazing. Her knowledge of hands-on electronics is excellent!",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,372,989.757681 | ||
https://hackaday.com/2021/08/09/so-you-can-solder-small-smd-devices-the-question-is-just-how-small/ | So You Can Solder Small SMD Devices. The Question Is, Just How Small? | Jenny List | [
"Parts"
] | [
"008004",
"555",
"smd",
"soldering",
"soldering challenge"
] | A highlight of last year’s Hackaday Remoticon was a soldering competition that had teams from around the world came together online and did the well-known MakersBox SMD Challenge kit in which a series of LED circuits of decreasing size must be soldered. The Hackaday crew acquitted themselves well, and though an 01005 r... | 15 | 7 | [
{
"comment_id": "6371001",
"author": "JanW",
"timestamp": "2021-08-09T15:40:01",
"content": "There’s a BGA version of the 555?! Didn’t know that…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6371148",
"author": "aki009",
"timestamp": "2021-... | 1,760,372,990.242265 | ||
https://hackaday.com/2021/08/09/permanent-artificial-hearts-long-sought-replacements-may-not-be-far-away/ | Permanent Artificial Hearts: Long-Sought Replacements May Not Be Far Away | Dan Maloney | [
"Engineering",
"Featured",
"Medical Hacks",
"News",
"Slider"
] | [
"artificial heart",
"BiVACOR",
"heart",
"human heart",
"Jarvik-7",
"TAH",
"total artificial heart"
] | The number of artificial prosthetic replacement parts available for the human body is really quite impressive. From prosthetic eyes to artificial hips and knees, there are very few parts of the human body that can’t be swapped out with something that works at least as well as the original, especially given that the OEM... | 44 | 18 | [
{
"comment_id": "6370981",
"author": "TrantorianMagpie",
"timestamp": "2021-08-09T14:17:24",
"content": "“there are very few parts of the human body that can’t be swapped out with something that works at least as well as the original”Huh? Is this serious?Prosthetic eyes? You mean glass eyes with whi... | 1,760,372,989.90567 | ||
https://hackaday.com/2021/08/09/this-old-mouse-building-a-usb-adapter-for-a-vintage-depraz-mouse/ | This Old Mouse: Building A USB Adapter For A Vintage Depraz Mouse | Ryan Flowers | [
"classic hacks",
"Peripherals Hacks",
"Retrocomputing"
] | [
"arduino",
"classic hacks",
"Computing",
"de9",
"microcontroller",
"mouse",
"retro",
"usb"
] | When [John Floren] obtained a vintage Depraz mouse, he started out being content to just have such a great piece of history in his possession. But if you’re like him, you know it’s not enough to just
have
something. What would it be like to
use
it?
To find out,
[John] embarked on a mission to build a USB adapter for hi... | 14 | 6 | [
{
"comment_id": "6370942",
"author": "tym0tym",
"timestamp": "2021-08-09T11:59:45",
"content": "“Further deviating from the norm, he found that the quadrature encoders were connected directly to the DE9 connector.”So it’s something like an Amiga mouse?",
"parent_id": null,
"depth": 1,
"r... | 1,760,372,990.291681 | ||
https://hackaday.com/2021/08/09/custom-camera-flash-is-built-for-stealth/ | Custom Camera Flash Is Built For Stealth | Zach Zeman | [
"classic hacks"
] | [
"camera flash",
"camera hack",
"custom PCB",
"disposable camera",
"disposable camera flash",
"film photography",
"photography"
] | As [Joshua Bird] began his foray into the world of film photography, he was taken back by the old technology’s sheer hunger for light. Improvised lighting solutions yielded mixed results, and he soon realized he needed a true camera flash. However, all the options he found online were large and bulky; larger than the c... | 28 | 14 | [
{
"comment_id": "6370911",
"author": "abjq",
"timestamp": "2021-08-09T08:58:04",
"content": "When I was into film photography back in the ’80’s I found that the greatest improvement to my flash photography was to use a slave flash pointed usually at the ceiling, it gave far more natural illumination... | 1,760,372,990.193364 | ||
https://hackaday.com/2021/08/08/from-tube-and-wing-to-just-wing-the-future-of-airliners/ | From Tube And Wing To Just Wing: The Future Of Airliners | Danie Conradie | [
"Transportation Hacks"
] | [
"airliner",
"control systems",
"flying wing",
"real engineering"
] | Airliners have become an unremarkable part of modern life, but unless you happen to be an aircraft enthusiast, you’d be forgiven for thinking the latest Airbus model looks more or less the same as the Boeing 707 that ushered in the Jet Age. But that might soon change, with blended wing airliners looking like the next s... | 77 | 20 | [
{
"comment_id": "6370874",
"author": "Gregg Eshelman",
"timestamp": "2021-08-09T05:24:30",
"content": "BWB airliners, like nuclear fusion and flying cars everywhere, are always “coming soon”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370899",
"... | 1,760,372,990.400878 | ||
https://hackaday.com/2021/08/08/accurate-digital-clock-keeps-ticking-with-fpga/ | Accurate Digital Clock Keeps Ticking With FPGA | Chris Lott | [
"clock hacks"
] | [
"atmega328",
"digital clock",
"fpga",
"oven controlled crystal oscillator"
] | Even the most punctual among us are content to synchronize their clocks to external time sources like navigation satellite constellations, network time servers, frequency-controlled AC mains, or signals broadcast by radio stations such as WWV, CHU, and DFC77 — but not [zaphod]. After building a couple of more tradition... | 12 | 6 | [
{
"comment_id": "6370865",
"author": "diane",
"timestamp": "2021-08-09T03:44:00",
"content": "I hope to see many more FPGA projects",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370867",
"author": "James L Horn",
"timestamp": "2021-08-09T04:33:56",
... | 1,760,372,990.492484 | ||
https://hackaday.com/2021/08/08/hackaday-links-august-8-2021/ | Hackaday Links: August 8, 2021 | Kristina Panos | [
"Hackaday Columns",
"Hackaday links"
] | [
"antiphonary",
"antique books",
"chip shortage",
"GitHub Copilot",
"zoom",
"zoombombing"
] | Do you have burning opinions about GitHub Copilot, the AI pair programmer that Microsoft introduced a few months ago? Are you worried about the future of free and open software? The
Free Software Foundation is funding a call for white papers
of 3,000 or fewer words that address either Copilot itself or the subjects of ... | 6 | 4 | [
{
"comment_id": "6370823",
"author": "Nick",
"timestamp": "2021-08-08T23:14:51",
"content": "I think the worst *idea* for a name was Georgium Sidus.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370835",
"author": "Redhatter (VK4MSL)",
"timestamp": "... | 1,760,372,990.443112 | ||
https://hackaday.com/2021/08/08/reactos-is-going-places-with-more-stable-amd64-smp-and-multi-monitor-support/ | ReactOS Is Going Places, With More Stable AMD64, SMP, And Multi-Monitor Support | Jenny List | [
"Software Development"
] | [
"open source",
"reactos",
"windows"
] | In the crowd of GNU/Linux and BSD users that throng our community, it’s easy to forget that those two families are not the only games in the open-source operating system town. One we’ve casually kept an eye on for years is ReactOS, the long-running open-source Windows-compatible operating system that is doing its best ... | 54 | 14 | [
{
"comment_id": "6370787",
"author": "doragasu",
"timestamp": "2021-08-08T20:08:44",
"content": "Unfortunately this OS is very very far from being a useful replacement for Windows XP. Nowadays any Linux distro with Wine has a much higher chance to nicely run your Windows only programs than ReactOS.I... | 1,760,372,990.682464 | ||
https://hackaday.com/2021/08/10/charles-lindbergh-the-famous-inventor/ | Charles Lindbergh The Famous… Inventor? | Al Williams | [
"Featured",
"History",
"Medical Hacks",
"Original Art"
] | [
"carrel",
"lindbergh",
"perfusion pump"
] | Most people remember Charles Lindbergh for his non-stop solo flight across the Atlantic which made him an international celebrity. If you are a student of history, you might also know he was at the center of a very controversial trial surrounding the kidnapping of his child or even that he had a dance named after him. ... | 25 | 5 | [
{
"comment_id": "6371357",
"author": "Alexander Wikström",
"timestamp": "2021-08-10T17:26:53",
"content": "I first read “perfusion pump” as “diffusion pump” and though that is an important bit of scientific equipment to just casually invent and not be known for. Though, writing this, I have no clue ... | 1,760,372,991.34156 | ||
https://hackaday.com/2021/08/10/new-contest-halloween-hackfest/ | New Contest: Halloween Hackfest | Mike Szczys | [
"contests",
"Hackaday Columns",
"Holiday Hacks",
"Slider"
] | [
"halloween",
"Halloween Hackfest"
] | It’s as if Halloween was made for hardware hackers. The world is begging us to build something cleaver as we decorate our houses and ourselves for the big day. And one thing’s for sure: the Hackaday crowd never disappoints. This year we’re fully embracing that with
the Halloween Hackfest, our newest contest beginning t... | 4 | 4 | [
{
"comment_id": "6371343",
"author": "Aaron Eiche",
"timestamp": "2021-08-10T16:43:11",
"content": "I’ll take this opportunity to encourage folks to take a look at XLights, and open source Light control system. It is an incredibly powerful tool and really is a fantastic show runner. It obviously doe... | 1,760,372,991.012766 | ||
https://hackaday.com/2021/08/10/workshop-organization-with-panels/ | Workshop Organization With Panels | Chris Lott | [
"Lifehacks"
] | [
"lab bench",
"project storage",
"storage",
"workbench",
"workspace"
] | Tired of all your completed (or half-completed) projects cluttering up your workspace? Or you toss them in a box and later forget which box? Well [Another Maker] aka [Develop With Dan] came up with a solution which he dubs Mission Control — panelize your projects and store them in one of many cubbyholes which are provi... | 21 | 8 | [
{
"comment_id": "6371345",
"author": "macsimski",
"timestamp": "2021-08-10T16:49:47",
"content": "Hmm. some of those panels should be table or car sized for my projects…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6371359",
"author": "reg",
"timesta... | 1,760,372,991.074053 | ||
https://hackaday.com/2021/08/10/china-maglev-train-aspirations-boosted-by-new-600-km-h-design/ | China MagLev Train Aspirations Boosted By New 600 Km/h Design | Lewin Day | [
"Current Events",
"Featured",
"Slider",
"Transportation Hacks"
] | [
"maglev",
"Magnetic levitation",
"train"
] | Maglev trains have long been touted as the new dawn for train technology. Despite keen and eager interest in the mid-20th century, development has been slow, and only limited commercial operations have ever seen service. One of the most well-known examples is the Shanghai Maglev Train which connects the airport to the ... | 65 | 12 | [
{
"comment_id": "6371293",
"author": "yetihehe",
"timestamp": "2021-08-10T14:08:41",
"content": "There is less friction, but what about maintaining forces needed to levitate the train?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6371299",
"author"... | 1,760,372,990.966919 | ||
https://hackaday.com/2021/08/10/tamagotchis-everywhere/ | Tamagotchis Everywhere | Matthew Carlson | [
"Microcontrollers",
"Software Hacks"
] | [
"stm32",
"tamagotchi"
] | Tamagotchi’s relatively simple technical complexity pales in comparison to its huge cultural impact, with over 76 million sold. It has spawned comics, stories, numerous toys, and offshoots such as an anime and two films. [JC] was looking through some of his old stuff and came across a Tamagotchi P1 (the original Tamago... | 15 | 8 | [
{
"comment_id": "6371275",
"author": "Molux",
"timestamp": "2021-08-10T11:42:39",
"content": "“After all, it’s just a 32MHZ E0C6S46”It’s 32,768 kHz, 32MHz is overkill…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6371339",
"author": "Padrote",
... | 1,760,372,991.12218 | ||
https://hackaday.com/2021/08/10/hiding-links-in-plain-sight-with-bookmark-knocking/ | Hiding Links In Plain Sight With Bookmark Knocking | Ryan Flowers | [
"Security Hacks",
"Software Hacks"
] | [
"base64",
"javascript",
"obfuscation",
"port knocking",
"security",
"security through obscurity"
] | Have you ever been looking for a screwdriver, USB stick, or your keys, only to find them right where you left them in plain sight? We have. As many prolific geocachers know, hiding things out in the open is a great way to make sure that people overlook them.
[Jacob Strieb] has been researching various ways to password ... | 21 | 3 | [
{
"comment_id": "6371266",
"author": "Daid",
"timestamp": "2021-08-10T09:29:52",
"content": "It’s pretty obvious for a keen observer of the bookmarks that something fishy is happening, with the bookmarks containing 5k of javascript code instead of a simple URL.",
"parent_id": null,
"depth": ... | 1,760,372,990.861054 | ||
https://hackaday.com/2021/08/09/taking-a-walk-down-computer-memory-lane/ | Taking A Walk Down [Computer] Memory Lane | Ryan Flowers | [
"Retrocomputing"
] | [
"core memory",
"crt hacks",
"delay line memory",
"mercury delay line",
"paper tape",
"punch card",
"retrocomputing"
] | There’s nothing quite like going to a museum and being given a tour by a docent who really knows their way around the exhibits. When that docent has first hand experience in the subject matter, the experience is enhanced even further. So you can imagine our excitement when hacker, maker, and former DEC mainframe memory... | 15 | 10 | [
{
"comment_id": "6371237",
"author": "J. Peterson",
"timestamp": "2021-08-10T05:45:02",
"content": "All sorts of weird stuff out there. The Friden EC-130 and it’s acoustic delay line, for example:http://www.vintagecalculators.com/html/friden_ec-130.html",
"parent_id": null,
"depth": 1,
"... | 1,760,372,991.178693 | ||
https://hackaday.com/2021/08/08/wristwatch-pcb-swaps-must-be-in-the-air/ | Wristwatch PCB Swaps Must Be In The Air | Mike Szczys | [
"clock hacks",
"Microcontrollers",
"Wearable Hacks"
] | [
"ATSAML22",
"Casio F-91W",
"segment LCD controller",
"SLCD",
"watch",
"wristwatch"
] | Are we seeing more wristwatch PCB swapping projects because more people are working on them, or because we saw one and they’re on our mind? The world may never know, but when it comes to design constraints, there’s a pretty fun challenge here both in fitting your electronic wizardry inside the confines of an injection ... | 19 | 6 | [
{
"comment_id": "6370765",
"author": "Dale Kaup",
"timestamp": "2021-08-08T17:28:59",
"content": "“fewer buttons” rather than less buttons.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370767",
"author": "Erik Johnson",
"timestamp": "2021-... | 1,760,372,991.27604 | ||
https://hackaday.com/2021/08/08/a-snes-music-player-you-can-control-with-a-browser/ | A SNES Music Player You Can Control With A Browser | Lewin Day | [
"Nintendo Hacks"
] | [
"nintendo",
"snes",
"super nintendo",
"super nintendo entertainment system",
"WebUSB"
] | Listening to chiptunes on an emulator or software-based player is fine, but sometimes you just gotta have that real hardware charm. [Kazhuu] is one such enthusiast who feels this way, and set about building a hardware player for SNES chiptunes
that can be controlled from a browser.
The build relies on an Arduino Micro ... | 3 | 2 | [
{
"comment_id": "6370844",
"author": "Mike",
"timestamp": "2021-08-09T01:27:52",
"content": "I’ve wanted a hardware spc player for some time. Nice job!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370921",
"author": "nath",
"timestamp": "2021-08-09T... | 1,760,372,991.215199 | ||
https://hackaday.com/2021/08/08/building-a-solar-powered-game-boy-pocket/ | Building A Solar Powered Game Boy Pocket | Matthew Carlson | [
"Nintendo Game Boy Hacks",
"Solar Hacks"
] | [
"gameboy",
"IPS",
"lipo",
"solar",
"solar power",
"USB C"
] | Light has always been a key part of the classic Game Boy experience. Some of us have fond memories of riding along in the back seat of a car at night, pausing and unpausing the game as the street lights overhead briefly give enough light to see the unlit display. The availability of third party IPS displays for these c... | 5 | 2 | [
{
"comment_id": "6370725",
"author": "x14km2d",
"timestamp": "2021-08-08T12:53:00",
"content": "Interesting project. In addition, I find it really good when hacker explain their projects theoretically and not just produce a short “craft video”.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,372,991.386962 | ||
https://hackaday.com/2021/08/08/giant-cnc-machine-measures-a-full-cubic-meter/ | Giant CNC Machine Measures A Full Cubic Meter | Lewin Day | [
"cnc hacks"
] | [
"3d printer",
"cnc",
"large scale",
"marlin",
"NEMA 23",
"RAMPS"
] | There are plenty of designs for table-top 3D printers, engravers, and general CNC machines out there. However, if you wanna build big things and build them fast, sometimes you need a machine that can handle bigger jobs. This gigantic 1x1x1 m 5-axis CNC machine from [Brian Brocken]
absolutely fits the bill.
The build re... | 32 | 9 | [
{
"comment_id": "6370695",
"author": "Gregg Eshelman",
"timestamp": "2021-08-08T08:15:10",
"content": "Carve foam. Glue pieces together. Lay up glass fiber and epoxy. Sand smooth. Spray on gel coat resin. Sand smooth. Apply mold release. There’s your new boat hull mold.",
"parent_id": null,
... | 1,760,372,991.630111 | ||
https://hackaday.com/2021/08/07/the-magnetosphere-has-a-ton-of-energy-can-a-guitar-amp-company-tap-into-it/ | The Magnetosphere Has A Ton Of Energy. Can A Guitar Amp Company Tap Into It? | Jenny List | [
"Solar Hacks",
"Space"
] | [
"free energy",
"magnetosphere",
"space"
] | Researching a piece on vacuum tubes, we stumbled on something unexpected from Electro-Harmonix, best known for guitar amplifiers and audio tube manufacture. In a break from their core business,
they plan to tap energy from the magnetosphere
. This came as
something of a surprise to their guitarist customers
who were no... | 55 | 26 | [
{
"comment_id": "6370669",
"author": "Ostracus",
"timestamp": "2021-08-08T05:29:37",
"content": "Space elevator could tap into it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370680",
"author": "pelrun",
"timestamp": "2021-08-08T07:14:28"... | 1,760,372,992.03147 | ||
https://hackaday.com/2021/08/07/nintendo-zapper-reborn-as-home-automation-remote/ | Nintendo Zapper Reborn As Home Automation Remote | Brian McEvoy | [
"Nintendo Hacks",
"Toy Hacks"
] | [
"nintendo",
"remote",
"switch",
"zapper"
] | Generally, using a gun to turn your lights off is dangerous and expensive, but for the [DuctTape Mechanic],
it’s just how he does things
. Video also after the break. To be fair, he uses a salvaged Nintendo Zapper, not a firearm, and replaces the guts with an RF transmitter. We are shocked that he chose a radio model i... | 3 | 2 | [
{
"comment_id": "6370652",
"author": "John",
"timestamp": "2021-08-08T02:44:29",
"content": "That’s a newer model anyway. At least it was put to some use. ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370693",
"author": "Gregg Eshelman",
... | 1,760,372,991.564242 | ||
https://hackaday.com/2021/08/07/ramps-rebuild-keeps-robox-3d-printer-out-of-junk-bin/ | RAMPS Rebuild Keeps Robox 3D Printer Out Of Junk Bin | Matthew Carlson | [
"3d Printer hacks"
] | [
"3d printer",
"arduino",
"Arduino Mega 2560",
"marlin",
"RAMPS",
"rebuild",
"refub",
"robox"
] | A 3D printer is a wonderful invention, but it needs maintenance like every machine that runs for long hours. [Rob Ward] had a well-used Robox 3D printer that was in need of some repairs, but getting the necessary replacement parts shipped to Australia was cost-prohibitive. Rather than see a beloved printer be scrapped ... | 11 | 6 | [
{
"comment_id": "6370674",
"author": "Gareth Martin",
"timestamp": "2021-08-08T06:16:46",
"content": "Nicely done.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370852",
"author": "Rob Ward",
"timestamp": "2021-08-09T02:03:54",
"con... | 1,760,372,991.857635 | ||
https://hackaday.com/2021/08/07/helicopter-seed-robot-can-also-drop-like-a-rock/ | Helicopter Seed Robot Can Also Drop Like A Rock | Danie Conradie | [
"drone hacks"
] | [
"autorotation",
"maple seed",
"RC glider"
] | Whether you know them as samara seeds, maple seeds, or helicopter seeds, most of us know the seeds that spin down to the ground on one or two blades. They have been served as the inspiration for several robotic autorotating gliders, and
researchers from the Singapore University of Technology and Design (SUTD) can now a... | 30 | 19 | [
{
"comment_id": "6370606",
"author": "vib",
"timestamp": "2021-08-07T21:00:08",
"content": "multidrop amazon delivery. right on your balcony.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370797",
"author": "Rumble_in_the_Jungle",
"timestam... | 1,760,372,992.093959 | ||
https://hackaday.com/2021/08/07/multics-gets-a-new-release-52-years-after-launch/ | MULTICS Gets A New Release… 52 Years After Launch | Jenny List | [
"computer hacks",
"Retrocomputing"
] | [
"mainframe computer",
"MULTICS",
"operating system"
] | If you have ever read anything about the history of UNIX, you may remember that its early development was influenced by an older operating system. MULTICS was developed in the 1960s by MIT and General Electric as a commercial operating system, and had been the system which UNIX writers [Thompson] and [Ritchie] had used... | 27 | 11 | [
{
"comment_id": "6370563",
"author": "Phillip Mason Allison",
"timestamp": "2021-08-07T17:27:53",
"content": "Site died. GJ.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370588",
"author": "Eric Swenson",
"timestamp": "2021-08-07T19:23:22"... | 1,760,372,991.803884 | ||
https://hackaday.com/2021/08/07/hearing-the-unhearable/ | Hearing The Unhearable | Elliot Williams | [
"Hackaday Columns",
"Radio Hacks",
"Rants"
] | [
"education",
"experimentation",
"newsletter"
] | My wife was watching a crime drama, and one of the plot twists involved a witness’ hearing aid malfunctioning so that he could hear electromagnetic waves around him. It’s not so implausible, if you think about it. Many hearing aids have a
t-coil
, which is essentially an inductor that’s designed to couple with the spea... | 51 | 24 | [
{
"comment_id": "6370532",
"author": "Michael Black",
"timestamp": "2021-08-07T14:16:57",
"content": "I cut a piece of circuit board the shape of a hearing aid, stripped off the copper, and wound some fine waire around it. Seemed to work fine.Nowadays, some have a direct conection for an external m... | 1,760,372,992.650387 | ||
https://hackaday.com/2021/08/07/capstan-drive-is-pulling-the-strings-on-this-dynamic-quadruped/ | Capstan Drive Is Pulling The Strings On This Dynamic Quadruped | Sonya Vasquez | [
"Robots Hacks"
] | [
"cable driven robot",
"capstan drive"
] | When it comes to legged robots, it’s easy to think that the complexity and machining costs would keep these creatures far away from becoming anyone’s garage hobby. But, through a series of clever design choices, [Damian Lickindorf] has found a way to beat the odds and give life to
Stanley, a low-cost, dynamic quadruped... | 9 | 7 | [
{
"comment_id": "6370505",
"author": "alfcoder",
"timestamp": "2021-08-07T11:52:57",
"content": "it looks like a dewalt electric screwdriver :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "8177000",
"author": "Bill",
"timestamp": "2025-09-0... | 1,760,372,992.188087 | ||
https://hackaday.com/2021/08/07/everything-you-always-wanted-to-know-about-radioactive-lenses/ | Everything You Always Wanted To Know About Radioactive Lenses | Al Williams | [
"digital cameras hacks",
"Misc Hacks"
] | [
"camera",
"glass",
"lens",
"radioactive",
"radioactive glass",
"radioactive lens"
] | We think of radioactive material as something buried away in bunkers with bombs, power plants, and maybe some exotic medical equipment. But turns out, there are little bits of radiation in the water, our soil, bananas, granite countertops, smoke detectors, and even some camera lenses. Camera lenses? A few decades ago, ... | 45 | 9 | [
{
"comment_id": "6370482",
"author": "David",
"timestamp": "2021-08-07T09:49:27",
"content": "I would have thought putting a radioactive lens next to film would be a bad idea. Particularly with fine grain black and white film.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,372,992.270582 | ||
https://hackaday.com/2021/08/06/game-boy-color-makes-itself-at-home-in-a-dmg-01/ | Game Boy Color Makes Itself At Home In A DMG-01 | Tom Nardi | [
"Nintendo Game Boy Hacks"
] | [
"DMG-01",
"game boy",
"game boy color",
"IPS display",
"retro gaming"
] | When we last checked in with [Bucket Mouse], he had just finished cramming a Game Boy Advance (GBA) SP motherboard into the body of the iconic Game Boy DMG-01, complete with an aftermarket IPS display. Unfortunately, after a few weeks of using the system, he ran into a few issues that sent him back to the drawing board... | 2 | 2 | [
{
"comment_id": "6370590",
"author": "Steven Gann",
"timestamp": "2021-08-07T19:25:39",
"content": "Always love seeing hacks with older gaming hardware.Very nicely done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370631",
"author": "Brick Boy",
"t... | 1,760,372,992.1405 | ||
https://hackaday.com/2021/08/06/retro-computers-from-paper/ | Retro Computers From Paper | Chris Lott | [
"Art",
"Retrocomputing"
] | [
"dollhouse",
"paper craft",
"papercraft",
"retro computer",
"retrocomputing"
] | Want to start your own collection of retro computers, for free? Well graphic designer [Rocky Bergen]’s
collection of paper craft models
might be the answer. [Rocky] has designed over a dozen models of old computers, including classics such as the IMSAI 8080, Commodore Pet, and the BBC Microcomputer to name just a few.
... | 22 | 15 | [
{
"comment_id": "6370449",
"author": "a_do_z",
"timestamp": "2021-08-07T03:25:10",
"content": "Tippling? That could explain a few articles I’ve seen here. :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370452",
"author": "Chris Lott",
"t... | 1,760,372,992.332996 | ||
https://hackaday.com/2021/08/06/pen-plotter-is-about-as-simple-as-it-can-get/ | Pen Plotter Is About As Simple As It Can Get | Al Williams | [
"3d Printer hacks"
] | [
"core xy",
"CoreXY",
"plotter"
] | Sure, we see quite a few plotters and other motion machines, but
the one
from [DAZ Projects] has the virtual of looking dead simple. The Arduino and CNC shield are old hat, of course. But some 3D printed pulleys and a very simple-looking core XY arrangement looks like this could be a pretty quick build.
You might ask; ... | 14 | 8 | [
{
"comment_id": "6370437",
"author": "ellisgl",
"timestamp": "2021-08-07T00:44:45",
"content": "Guess it wouldnt be hard to add a cutter to it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370447",
"author": "grounded",
"timestamp": "2021-... | 1,760,372,992.383439 | ||
https://hackaday.com/2021/08/06/cool-binary-clock-uses-old-school-leds-and-a-fancy-graphic-pcb/ | Cool Binary Clock Uses Old-School LEDs And A Fancy Graphic PCB | Lewin Day | [
"clock hacks"
] | [
"binary clock",
"clock",
"cmos"
] | Ah, the 5mm LED. Once a popular choice, they’ve been supplanted in modernity by smaller SMD components and/or more capable RGB parts in recent years. However, they’re still able to do the job and are a great way to give your project that proper homebrew look. [Ian Dunn] chose those very parts to produce his
4017 Decade... | 21 | 8 | [
{
"comment_id": "6370402",
"author": "Justin",
"timestamp": "2021-08-06T20:31:08",
"content": "How is it a binary clock? To me, it appears that it has 10’s and 1’s places for the hours minutes and seconds that, and in this picture, reads exactly as printed: 6:36 and 57 seconds. Wouldn’t a binary c... | 1,760,372,992.566563 | ||
https://hackaday.com/2021/08/06/a-trio-of-photodiodes-make-a-radiation-detector/ | A Trio Of Photodiodes Make A Radiation Detector | Jenny List | [
"Science",
"Tool Hacks"
] | [
"photodiode",
"radiation detector",
"transimpedance amplifier"
] | The instinctive reaction when measuring nuclear radiation is to think of a Geiger counter, as the low-pressure gas tube detectors have entered our popular culture through the Cold War. A G-M tube is not the only game in town though, and even the humble photodiode can be pressed into service. [Robert] gives us a good ex... | 44 | 14 | [
{
"comment_id": "6370388",
"author": "Steven Clark",
"timestamp": "2021-08-06T19:19:21",
"content": "Could a bank of optoisolators be used for something similar? It would be a nice way to get dark packaging on something light sensitive.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,372,992.728685 | ||
https://hackaday.com/2021/08/06/hands-on-whiskey-pirates-dc29-hardware-badge-blings-with-risc-v/ | Hands-On: Whiskey Pirates DC29 Hardware Badge Blings With RISC-V | Mike Szczys | [
"cons",
"Reviews"
] | [
"badgelife",
"CH552",
"defcon 29",
"electronic badge",
"GD32FV103",
"hardware badge",
"Padauk",
"pdk13",
"RISC-V",
"whiskey pirates"
] | The Whiskey Pirates have once again dropped an excellent electronic badge for DEF CON 29. This is, of course, unofficial, but certainly makes the list of the hottest custom bling seen so far this year.
I’m not able to make it to the con in person, but the Pirates sent over one of these badges anyway for an early look. ... | 6 | 2 | [
{
"comment_id": "6370376",
"author": "tomás zerolo",
"timestamp": "2021-08-06T18:00:00",
"content": "Mike, your GD32VF103 datasheet is somewhere on your local harddisk. No way to access it without running afoul of some laws :-)Here’s one on the intertubes:http://www.gd32mcu.com/data/documents/shujus... | 1,760,372,992.780916 | ||
https://hackaday.com/2021/08/06/hackaday-podcast-130-upside-down-3d-printer-biplane-quadcopter-gutting-a-calculator-watch-and-github-copilot/ | Hackaday Podcast 130: Upside Down 3D-Printer, Biplane Quadcopter, Gutting A Calculator Watch, And GitHub CoPilot | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys get charged up on the best hacks the week had to offer. The 3D printer design gods were good to us, delivering an upside-down FDM printer and a hack that can automatically swap out heated beds for continuous printing. We look at a drone design that builds vertical wings ... | 0 | 0 | [] | 1,760,372,992.948215 | ||
https://hackaday.com/2021/08/06/cyclocopter-flies-with-eight-spinning-horizontal-wings/ | Cyclocopter Flies With Eight Spinning Horizontal Wings | Danie Conradie | [
"drone hacks"
] | [
"cyclocopter",
"dRehmFlight",
"nicholas rehm"
] | For conventional vertical takeoff and landing rotors on vertical shafts are the most common solution, as seen in helicopters and multirotors. A much less popular solution is the cyclocopter, which consists of a pair of rotors spinning around a horizontal shaft with horizontal blades. [Nicholas Rehm] built a
remote-cont... | 20 | 14 | [
{
"comment_id": "6370360",
"author": "Wallace Owen",
"timestamp": "2021-08-06T16:39:32",
"content": "Absolutely awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370363",
"author": "Earle Rich",
"timestamp": "2021-08-06T16:53:42",
"content":... | 1,760,372,992.846144 | ||
https://hackaday.com/2021/08/06/this-week-in-security-insecure-chargers-request-forgeries-and-kernel-security/ | This Week In Security: Insecure Chargers, Request Forgeries, And Kernel Security | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"Hallucinate",
"linux kernel",
"Request Forgery",
"This Week in Security"
] | The folks at Pen Test Partners decided to
take a look at electric vehicle chargers
. Many of these chargers are WiFi-connected, and let you check your vehicle’s charge state via the cloud. How well are they secured? Predictably, not as well as they could be.
The worst of the devices tested, Project EV, didn’t actually ... | 13 | 6 | [
{
"comment_id": "6370340",
"author": "Marc S.",
"timestamp": "2021-08-06T14:33:37",
"content": "Complaining about the Pis lack of secureboot and encryption seems a bit inane to me. It was never meant for most of us adults. Wasn’t it a device for young learners? We invaded their ecosystem, we are all... | 1,760,372,992.907375 | ||
https://hackaday.com/2021/08/06/overhauling-a-battle-bot/ | Overhauling A Battle Bot | Mike Szczys | [
"Robots Hacks"
] | [
"battle bot",
"battlebots",
"overhaul",
"repair"
] | Where do old battle bots go to die? Well the great parts-bin in the
sky
corner of the workshop, where they await disassembly and use in other projects. But once in a while, if a battle bot is really lucky, they get pulled out again and put back into working order. So is the story [Charles] is telling about Overhaul 1, ... | 0 | 0 | [] | 1,760,372,993.16217 | ||
https://hackaday.com/2021/08/06/sbitx-hackable-hf-sdr-for-the-raspberry-pi/ | SBITX: Hackable HF SDR For The Raspberry Pi | Danie Conradie | [
"Radio Hacks",
"Raspberry Pi"
] | [
"ham radio",
"HF",
"raspberry pi",
"sdr"
] | Cheap, easy to use SDR dongles are an immensely powerful tool for learning about radio technology. However, building your own SDR is not something too many hackers are confident to tackle. [Ashhar Farhan, VU2ESE] hopes to change this with the
sBITX
, a hackable HF SDR transceiver designed around the Raspberry Pi.
[Ashh... | 32 | 15 | [
{
"comment_id": "6370319",
"author": "Tim",
"timestamp": "2021-08-06T11:47:53",
"content": "It’s certainly an interesting project. Perhaps a bit mishmash at the time being.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370334",
"author": "br0k3nilluzion"... | 1,760,372,993.115711 | ||
https://hackaday.com/2021/08/05/vintage-test-equipment-addiction-justified/ | Vintage Test Equipment Addiction Justified | Chris Lott | [
"3d Printer hacks"
] | [
"automated test",
"test equipment",
"vintage HP gear"
] | Recore 3D printer board developer [Elias Bakken] has
posted about the automatic test procedure
he developed using a stack-up of four (at least) pieces of vintage HP test equipment. In addition, his test jig and test philosophy is quite interesting.
Besides making a bed-of-nails test jig, he also designed a relay multip... | 2 | 2 | [
{
"comment_id": "6370321",
"author": "f1vefour",
"timestamp": "2021-08-06T11:57:50",
"content": "If only all 3d printer boards were tested like this. His testing methodology is excellent and it has caused me to take a longer look at the recore.Thanks for sharing",
"parent_id": null,
"depth":... | 1,760,372,993.208395 | ||
https://hackaday.com/2021/08/05/raspberry-pi-pico-used-as-a-transputer/ | Raspberry Pi Pico Used As A Transputer | Mike Szczys | [
"computer hacks",
"Microcontrollers",
"Retrocomputing"
] | [
"emulator",
"Raspberry Pi Pico",
"rp2040",
"transputer"
] | You can’t fake that feeling when a $4 microcontroller dev board can stand in as cutting-edge 1980s technology. Such is the case with
the working transputer that [Amen] has built using a Raspberry Pi Pico
.
For a thorough overview of the transputer you should
check out [Jenny List’s] longer article on the topic
but boil... | 43 | 24 | [
{
"comment_id": "6370273",
"author": "JWhitten",
"timestamp": "2021-08-06T03:12:41",
"content": "Wow, THAT is really cool !!! I wanted to play with the transputers back in the day, but never got a chance to do it. I was especially intrigued with Atari’s ABAQ system, which was transputer based. I wil... | 1,760,372,993.347463 | ||
https://hackaday.com/2021/08/05/kinesis-teensy-qmk-advantage-over-your-keyboard/ | Kinesis + Teensy = QMK Advantage Over Your Keyboard | Kristina Panos | [
"Peripherals Hacks"
] | [
"keyboard",
"Kinesis",
"Kinesis Advantage",
"mechanical keyboard",
"Stapelberg controller",
"Teensy"
] | Back in 2013, [Michael Stapelberg] created what is lovingly referred to as the Stapelberg controller: a replacement keyboard controller for the original Kinesis Advantage, the decades-old darling of the ergonomic clacking world. Whether you’re building a new keeb, you’ve got a broken Kinesis, or you simply want to run ... | 11 | 4 | [
{
"comment_id": "6370264",
"author": "Andrew Wells",
"timestamp": "2021-08-06T01:15:50",
"content": "There are a handful really cool bluetooth mods for the advantage similar to this one as well.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6370269",
"aut... | 1,760,372,993.262227 | ||
https://hackaday.com/2021/08/05/custom-caliper-tracks-for-when-youre-going-the-distance/ | Custom Caliper Tracks For When You’re Going The Distance | Sonya Vasquez | [
"cnc hacks"
] | [
"capacitance sensor",
"digital caliper"
] | The working principle of digital calipers is mysterious enough that we’d never think to dismantle, much less improve them, right? Well, think again, as [Limi DIY] retrofits the processing element onto a custom track,
extending the calipers measurement distance to a whopping 650 mm
. Combined with a prior project to ext... | 15 | 8 | [
{
"comment_id": "6370234",
"author": "infrared",
"timestamp": "2021-08-05T20:20:02",
"content": "This should give many desktop mills a cheap DRO.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370298",
"author": "mac012345",
"timestamp": "20... | 1,760,372,993.39831 | ||
https://hackaday.com/2021/08/05/magnus-effect-rc-aircraft-is-a-lot-harder-than-it-looks/ | Magnus-Effect RC Aircraft Is A Lot Harder Than It Looks | Danie Conradie | [
"Misc Hacks",
"News"
] | [
"aerodynamics",
"Magnus effect",
"RC airplane"
] | Conventional airfoil wings have come out on top for getting flying machines airborne over the last century, but there were a few other interesting designs that have come and gone. One of these is the Magnus effect plane, which makes use of the lift produced by a spinning cylinder. [James Whomsley] from [Project Air]
de... | 13 | 7 | [
{
"comment_id": "6370227",
"author": "x3n0x",
"timestamp": "2021-08-05T19:34:11",
"content": "Peter Sripol did this awhile ago:https://youtu.be/K6geOms33DkInteresting idea, if not terribly practical…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370230",
... | 1,760,372,993.443375 | ||
https://hackaday.com/2021/08/05/hands-on-def-con-29-badge-embraces-the-new-normal/ | Hands On: DEF CON 29 Badge Embraces The New Normal | Tom Nardi | [
"cons",
"Current Events",
"Featured",
"hardware",
"Reviews",
"Slider"
] | [
"badgelife",
"DEF CON",
"def con badge",
"defcon 29",
"hardware badge",
"macro pad",
"mechanical keyboard",
"usb hid"
] | To say that 2020 was a transformative year would be something of an understatement. The COVID-19 pandemic completely changed the way we worked, learned, and lived. Despite all those jokes about how much time people spend on their devices rather than interacting face-to-face with other humans, it turns out that when you... | 13 | 8 | [
{
"comment_id": "6370219",
"author": "smerrett79",
"timestamp": "2021-08-05T18:45:52",
"content": "Photo shows SAMD21G16B which appears to have 64k flash and 8k SRAM.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6370226",
"author": "Tom Nardi",
... | 1,760,372,993.643104 |
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