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https://hackaday.com/2021/05/05/3d-printed-camera-crane-for-the-workshop/ | 3D Printed Camera Crane For The Workshop | Danie Conradie | [
"digital cameras hacks",
"Misc Hacks"
] | [
"camera",
"camera crane",
"ivan miranda",
"tripod"
] | When you make a living building stuff and documenting the process camera setups take up a lot of time, breaking expensive equipment is an occupational hazard. [Ivan Miranda] knows this all too well, so he built a fully-featured
camera crane
to save his time and camera equipment. Video after the break.
The basic design ... | 7 | 4 | [
{
"comment_id": "6345999",
"author": "echodelta",
"timestamp": "2021-05-05T17:41:45",
"content": "Sure shines over those static shot videos and caffeinated camera holder views. Using a camera like you are wetting seedlings in a hurry, ugh.",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,373,098.584627 | ||
https://hackaday.com/2021/05/05/the-soviet-rbmk-reactor-35-years-after-the-chernobyl-disaster/ | The Soviet RBMK Reactor: 35 Years After The Chernobyl Disaster | Maya Posch | [
"Engineering",
"Featured",
"History",
"Slider"
] | [
"Chernobyl",
"industrial accidents",
"safety culture"
] | Thirty-five years ago, radiation alarms went off at the Forsmark nuclear power plant in Sweden. After an investigation, it was determined that the radiation did not come from inside the plant, but from somewhere else. Based on the prevailing winds at that time, it was ultimately determined that the radiation came from ... | 66 | 17 | [
{
"comment_id": "6345947",
"author": "Gravis",
"timestamp": "2021-05-05T14:11:27",
"content": "If I’ve learned anything from nuclear disasters then it’s that safety warnings should be able to shut down the reactors without the operator being able to override it. “I know better,” policy, and regulat... | 1,760,373,098.370787 | ||
https://hackaday.com/2021/05/04/linux-fu-mixing-bash-and-python/ | Linux Fu: Mixing Bash And Python | Al Williams | [
"Hackaday Columns",
"Linux Hacks",
"Slider"
] | [
"awk",
"bash",
"linux",
"Linux Fu",
"perl",
"python",
"shell script"
] | Although bash scripts are regularly maligned, they do have a certain simplicity and ease of creation that makes them hard to resist. But sometimes you really need to do some heavy lifting in another language. I’ll talk about Python, but actually, you can use many different languages with this technique, although you mi... | 24 | 11 | [
{
"comment_id": "6345731",
"author": "Hobthrust",
"timestamp": "2021-05-04T17:26:15",
"content": "Remember the parentheses around print if it’s Python 3!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6345736",
"author": "CRImier",
"timestamp... | 1,760,373,098.258362 | ||
https://hackaday.com/2021/05/04/new-contest-reinvented-retro/ | New Contest: Reinvented Retro | Mike Szczys | [
"contests"
] | [
"Reinvented Retro Contest",
"retro"
] | There are so many ways to make things look awesome by pulling inspiration from great retro hardware. And combining today’s futuristic functionality with yesterday’s lines, colors, and kitsch is the quick path to a winning combination. So why not give it a try and show us what you got? That’s the gist of Hackaday’s
Rein... | 22 | 7 | [
{
"comment_id": "6345735",
"author": "Bob",
"timestamp": "2021-05-04T17:38:53",
"content": "Sweet! Lucky I picked up an old portable B/W CRT a while ago that I havent used yet. And an old digital typewriter from the goodwill",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"co... | 1,760,373,098.194851 | ||
https://hackaday.com/2021/05/04/feel-what-the-temperature-is-like-outside-without-leaving-your-bed/ | Feel What The Temperature Is Like Outside Without Leaving Your Bed | Danie Conradie | [
"Tech Hacks"
] | [
"alarm clock",
"ESP8266",
"peltier",
"solenoid"
] | Your smartphone might be able to tell you what the weather is like outside, but you’d have to go outside yourself to really feel it. To do this from the comfort of your own bed, [Sagarrabanana] built a
clock that lets you really feel the temperature.
Video below with English subtitles.
It is basically a box with a sole... | 17 | 6 | [
{
"comment_id": "6345703",
"author": "Alice Lalita Heald",
"timestamp": "2021-05-04T15:09:12",
"content": "Brilliant idea!10C is different in summer and winter.I would make it like a chamber and add wind.‘peep hole’ into nature.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,098.131201 | ||
https://hackaday.com/2021/05/04/typematrix-ez-reach-2030-is-better-than-your-laptop-keyboard/ | TypeMatrix EZ-Reach 2030 Is Better Than Your Laptop Keyboard | Kristina Panos | [
"Hackaday Columns",
"Peripherals Hacks",
"Reviews",
"Slider"
] | [
"dvorak",
"dvorak mode",
"ebay",
"ergonomic",
"ergonomic keyboard",
"homing bar",
"homing bump",
"ortholinear",
"portable",
"scissor switches"
] | Maybe you’re not ready to take the leap into a full-on ergonomic split keyboard. That’s okay, that’s cool, that’s understandable. They’re weird! Especially ones like my
Kinesis Advantage
with the key bowls and such. But maybe your poor pinkies are starting to get tired and you’re ready to start using your thumbs for mo... | 38 | 19 | [
{
"comment_id": "6345686",
"author": "Greg A",
"timestamp": "2021-05-04T14:09:02",
"content": "ugh you don’t “practice” dvorak. you either switch cold turkey and endure 2-4 days of pain, or you don’t.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6345688",... | 1,760,373,098.452659 | ||
https://hackaday.com/2021/05/04/soviet-super-8-camera-hides-raspberry-pi-zero/ | Soviet Super 8 Camera Hides Raspberry Pi Zero | Tom Nardi | [
"digital cameras hacks",
"Raspberry Pi"
] | [
"Raspberry pi camera",
"super 8"
] | A few years ago [Xabier Zubizarreta] got it into his head that he wanted to put a modern digital image sensor into a classic Super 8 camera, but he didn’t want to ruin a gorgeous piece of vintage hardware in the process. After a bit of research, he discovered an export version of the Avrora camera made for the 1980 Sum... | 14 | 8 | [
{
"comment_id": "6345659",
"author": "John Little",
"timestamp": "2021-05-04T11:19:12",
"content": "I remember the Digital Super8 project from a few years back which aimed at putting a tiny little Ximea color camera into a Super8 film cartridge, and then using the cartridge with any Super8 camera st... | 1,760,373,098.025481 | ||
https://hackaday.com/2021/05/04/enjoy-an-ascii-version-of-star-wars-in-the-palm-of-your-hand-for-may-the-4th/ | Enjoy An ASCII Version Of Star Wars In The Palm Of Your Hand For May The 4th | Dan Maloney | [
"Misc Hacks"
] | [
"animation",
"ASCII",
"ascii art",
"flash",
"slide viewer",
"SPIFFS",
"star wars",
"wemos d1 mini"
] | Everyone by now has probably seen the original — and best; fight us — installment of the
Star Wars
franchise, and likely the ASCII-art animation version of it that improves greatly on the film by eliminating all those distracting special effects, human actors, and the soundtrack. But what we haven’t had until now is
a ... | 13 | 7 | [
{
"comment_id": "6345700",
"author": "Michael Black",
"timestamp": "2021-05-04T15:02:37",
"content": "May 4th is actually the day in 1961, 60 years ago exactly, that the Freedom Ride started. Initially a small group, they were testing whether interstate busing had been desegregated, as previously m... | 1,760,373,097.866282 | ||
https://hackaday.com/2021/05/03/guitar-hero-robot-actually-shreds/ | Guitar Hero Robot Actually Shreds | Matthew Carlson | [
"Games",
"Robots Hacks"
] | [
"guitar hero",
"opencv",
"ps2",
"raspberry pi",
"robot"
] | Once a popular craze, most of the public has sold or stashed away their plastic video game instruments and forgotten the likes of Guitar Hero and Rockband. Having never been quite satisfied with his scores, [Nick O’Hara] set out to create
a robot that could play a Guitar Hero controller.
It would be easy enough to use ... | 12 | 6 | [
{
"comment_id": "6345586",
"author": "Hazem",
"timestamp": "2021-05-04T05:25:12",
"content": "Nice project congratulations , How did he capture the video signal ? What hardware did he use for that? Did he use a camera or a video capture card as the article said ? What capture card did he used? And... | 1,760,373,098.072949 | ||
https://hackaday.com/2021/05/03/silicon-carbide-chips-can-go-to-hell/ | Silicon Carbide Chips Can Go To Hell | Al Williams | [
"News",
"Space"
] | [
"ieee",
"semiconductor",
"silicon carbide",
"venus"
] | IEEE Spectrum had an interesting read about circuits using
silicon carbide as a substrate
. [Alan Mantooth] and colleagues say that circuits based on this or some other rugged technology will be necessary for missions to Venus, which they liken to hell. That might seem like hyperbole, but at about 460C with an atmosphe... | 75 | 18 | [
{
"comment_id": "6345563",
"author": "Steven",
"timestamp": "2021-05-04T02:25:52",
"content": "Awesome! I’ve hoped for a long time for another mission to the surface of Venus. Interesting post, thanks.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345564",
... | 1,760,373,098.707654 | ||
https://hackaday.com/2021/05/03/ecg-project-with-all-the-messy-safety-details/ | ECG Project With All The Messy Safety Details | Orlando Hoilett | [
"Arduino Hacks",
"Medical Hacks"
] | [
"arduino",
"biomedical engineering",
"digital filter",
"electrocardiography",
"electrophysiology",
"IEC"
] | We’ve seen a number of heart rate monitoring projects on Hackaday, but
[Peter’s] electrocardiography (ECG) Instructable really caught out attention
.
If you’ve followed Hackaday for any period of time, you’re probably already somewhat familiar with the hardware needed to record the ECG. First, you need a high input imp... | 11 | 6 | [
{
"comment_id": "6345538",
"author": "NiHaoMike",
"timestamp": "2021-05-03T23:09:07",
"content": "Use BLE for easy isolated communications. And if the power usage could be lowered enough, a small solar panel of the kind often used in garden lights can be used for wireless charging without the high E... | 1,760,373,098.505511 | ||
https://hackaday.com/2021/05/03/hoverboard-turned-heavy-duty-remote-control-rover/ | Hoverboard Turned Heavy Duty Remote Control Rover | Tom Nardi | [
"Toy Hacks",
"Transportation Hacks"
] | [
"hoverboard",
"hoverboard motor",
"motorized",
"remote control",
"rover",
"wheel motor"
] | They might not be the hoverboards we were promised in
Back to the Future II
, but the popular electric scooters that have commandeered the name are exciting pieces of tech in their own way. Not because we’re looking to make a fool of ourselves by actually riding one, but because they’re packed full of useful hardware t... | 20 | 11 | [
{
"comment_id": "6345509",
"author": "tekkieneet",
"timestamp": "2021-05-03T21:15:33",
"content": "Those wheels are directly connected to the stepper motor shafts *without* additional bearings. Not what I would expect to see on a *heavy duty* rover.I have seen ghetto very *heavy duty* dolly cart bu... | 1,760,373,098.807843 | ||
https://hackaday.com/2021/05/03/teaching-a-usbasp-programmer-to-speak-tpi/ | Teaching A USBasp Programmer To Speak TPI | Chris Lott | [
"ATtiny Hacks"
] | [
"Atmel TPI",
"ATtiny20",
"in system programming",
"isp",
"jtag",
"usbasp"
] | Last Fall [Kevin] wanted to program some newer TPI-only AVRs using an old USBasp he had kicking around his lab. Finding an “odd famine of information” and “forums filled with incorrect information and schematics”, he decided to set the record straight and
document things correctly
. He sleuthed out the details and succ... | 20 | 7 | [
{
"comment_id": "6345469",
"author": "Nick",
"timestamp": "2021-05-03T18:46:37",
"content": "I solved this problem for the USBTiny and Raspberry Pi SPI programmers.https://hackaday.io/project/172310-usbtinyisp-to-tpi-adapter",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"co... | 1,760,373,099.091535 | ||
https://hackaday.com/2021/05/03/after-years-of-uncertainty-stratolaunch-flies-again/ | After Years Of Uncertainty, Stratolaunch Flies Again | Tom Nardi | [
"Current Events",
"Engineering",
"Hackaday Columns",
"Slider",
"Transportation Hacks"
] | [
"Burt Rutan",
"hypersonic",
"Scaled Composites Stratolaunch",
"spaceplane",
"SpaceShipOne",
"Stratolaunch"
] | When Paul Allen founded Stratolaunch in 2011, the hope was to make access to space cheaper and faster. The company’s massive carrier aircraft, the largest plane by wingspan ever to be built, would be able to carry rocket-powered vehicles up into the thin upper atmosphere on short notice under the power of its conventio... | 15 | 7 | [
{
"comment_id": "6345441",
"author": "HackJack",
"timestamp": "2021-05-03T17:09:48",
"content": "I have to admit that I got it mixed up with SpaceShip Two. They seem to serve a very similar purpose.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345479",
... | 1,760,373,098.864191 | ||
https://hackaday.com/2021/05/03/open-source-oxygen-hack-chat/ | Open-Source Oxygen Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"concentrator",
"Covid-19",
"Hack Chat",
"medical",
"O2",
"oxygen",
"pandemic",
"therapy",
"ventilator",
"zeolite"
] | Join us on Wednesday, May 5 at noon Pacific for the
Open-Source Oxygen Hack Chat
with Maher Daoudi and the OxiKit Team!
In such tumultuous times, it may be hard to remember last week, let alone last year. But if you dig back a bit, you may recall what a panic the world was in at this point in 2020 about the ventilator ... | 22 | 11 | [
{
"comment_id": "6345496",
"author": "Cbob",
"timestamp": "2021-05-03T19:56:35",
"content": "The “HIPAA Sanitary Air Filter” is interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345505",
"author": "bobz",
"timestamp": "2021-05-03T20:34:16",
... | 1,760,373,099.175652 | ||
https://hackaday.com/2021/05/03/i2c-paper-tape-reader-is-not-what-you-think/ | I2C Paper Tape Reader Is Not What You Think | Chris Lott | [
"Misc Hacks"
] | [
"i2c",
"optical reader",
"paper tape"
] | We’re not quite sure what drove the development of this project, but [shapoco] has put together
an intriguing device that reads I2C signals
(Japanese Twitter link) which have been printed as black and white rectangles on paper tape. He wrote a program that prints an I2C byte stream onto strips containing the SCL and SD... | 26 | 14 | [
{
"comment_id": "6345393",
"author": "Voxnulla",
"timestamp": "2021-05-03T15:13:58",
"content": "That is all sorts of glorious!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345394",
"author": "Tony",
"timestamp": "2021-05-03T15:14:41",
"content"... | 1,760,373,098.930985 | ||
https://hackaday.com/2021/05/03/genetically-modified-mosquitos-biohacking-for-disease-prevention/ | Genetically Modified Mosquitos: Biohacking For Disease Prevention | Dan Maloney | [
"Engineering",
"Featured",
"Interest",
"News",
"Science",
"Slider"
] | [
"Aedes aegypti",
"Disease",
"Florida",
"genetic engineering",
"GMO",
"malaria",
"mosquito",
"pesticide",
"transgenic",
"Yellow fever",
"Zika"
] | Many years ago, I took a summer trip to the Maryland shore with some friends. One of my buddies and I got bored with playing football on the beach, so we decided to take a hike on one of the many trails back into the wooded area behind the dunes. At the trailhead we noticed a prominent sign, warning about the presence ... | 43 | 17 | [
{
"comment_id": "6345372",
"author": "Mike",
"timestamp": "2021-05-03T14:06:47",
"content": "I walked along side a wooded area on a Florida Gulf coast beach. No warnings and the trail was a vehicle path to allow people to get to a launch for their boats. I even had regular long jeans on. I didn’t go... | 1,760,373,099.260883 | ||
https://hackaday.com/2021/05/03/commodore-64-emulator-in-vr-delivers-a-full-80s-experience/ | Commodore 64 Emulator In VR Delivers A Full 80s Experience | Donald Papp | [
"Retrocomputing",
"Virtual Reality"
] | [
"c64",
"commodore",
"commodore 64",
"retro",
"vintage",
"virtual reality",
"vr"
] | The simulated color CRT monitor looks surprisingly convincing in VR.
One way to play with vintage hardware without owning the hardware is to use an emulator, but
[omni_shaNker] announced taking it to the next level by using VR to deliver a complete Commodore 64 system, in its full glory
, complete with a native 80s hab... | 18 | 10 | [
{
"comment_id": "6345329",
"author": "AW",
"timestamp": "2021-05-03T11:47:35",
"content": "Nice.There is also this :https://www.emuvr.net/",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345331",
"author": "Nitpicker Smartyass",
"timestamp": "2021-05-0... | 1,760,373,099.316895 | ||
https://hackaday.com/2021/05/03/keep-livestock-from-razing-your-field-with-an-overgrazing-shield/ | Keep Livestock From Razing Your Field With An Overgrazing Shield | Kristina Panos | [
"Misc Hacks",
"Wearable Hacks"
] | [
"animal grazing",
"harness",
"overgrazing",
"overgrazing problem",
"wood"
] | You know, not every solution needs to be complicated to be absolutely awesome. Take the humble clothespin, for example, two pieces of cleverly carved wood (or plastic; we won’t judge) and a spring. And yet, the service it provides is useful for many applications.
The same simple elegance is also present in
[Anteneh]’s ... | 49 | 16 | [
{
"comment_id": "6345261",
"author": "Invincing",
"timestamp": "2021-05-03T08:25:29",
"content": "It will take about 3 seconds for a sheep to find out how to tilt the head and move the annoying obstacle to the side, thus preventing it from working. Also, any contraption like this attached to an unsu... | 1,760,373,099.409811 | ||
https://hackaday.com/2021/05/02/soundbar-bested-by-virtual-android-bluetooth-sniffer/ | Soundbar Bested By Virtual Android Bluetooth Sniffer | Tom Nardi | [
"home entertainment hacks",
"Software Hacks"
] | [
"bluetooth",
"reverse engineering",
"virtual machine",
"wireshark"
] | Out of the box, the Yamaha YAS-207 soundbar can be remotely controlled over Bluetooth, but only when using a dedicated application on iOS or Android. Users who want to command their hardware with their computer, or any other Bluetooth device for that matter, are left out in the cold. Or at least they were,
before [Wejn... | 12 | 2 | [
{
"comment_id": "6345209",
"author": "Drone",
"timestamp": "2021-05-03T06:48:38",
"content": "Seems like a hassle to emulate Android-x86 Dev Mode in a VM then sniff Bluetooth. Just plug a bootable copy of the Kali pen-test Linux distro on a USB stick into a machine and follow any number of examples ... | 1,760,373,099.461206 | ||
https://hackaday.com/2021/05/02/active-suspension-on-a-diy-racing-car/ | Active Suspension On A DIY Racing Car | Danie Conradie | [
"car hacks"
] | [
"active suspension",
"f1",
"racing car",
"suspension",
"wesley kagan"
] | In automotive engineering, almost every design choice is a trade-off, like performance versus fuel economy, straight-line speed versus cornering, or strength versus weight. Inspired by controversial technology for the 2020 Formula 1 season, [Wesley Kagan] is fitting his DIY racing car with actuators to
change the suspe... | 14 | 3 | [
{
"comment_id": "6345195",
"author": "Vinny",
"timestamp": "2021-05-03T02:47:06",
"content": "As a decades-long Formula 1 follower, this title is misleading: active suspension did existed on F1 in the mid-to-late 80s until it was banned for the 1994 season. 1992 and 1993 cars were the most technolog... | 1,760,373,099.511767 | ||
https://hackaday.com/2021/05/02/hackaday-links-may-2-2021/ | Hackaday Links: May 2, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"beaver",
"dragsters",
"fiber",
"hackaday links",
"isp",
"lander",
"mars",
"O Canada",
"prosthetics",
"rover",
"satellite",
"wood",
"Zhurong"
] | Mars is getting to be a busy place, what with helicopters buzzing around and rovers roving all about the place. Now it’s set to get a bit more crowded, with the planned descent of
the newly-named Chinese Zhurong rover
. Named after the god of fire from ancient Chinese mythology, the rover, which
looks a little like Opp... | 3 | 3 | [
{
"comment_id": "6345183",
"author": "Michael Black",
"timestamp": "2021-05-02T23:24:52",
"content": "“The beaver broke my internet” is at least better than “My dog ate my homework”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345395",
"author": "Ren",... | 1,760,373,099.548565 | ||
https://hackaday.com/2021/05/02/reverse-engineering-self-powered-wireless-switches/ | Reverse Engineering Self-Powered Wireless Switches | Danie Conradie | [
"Tech Hacks"
] | [
"bigclive",
"kinetic energy",
"RF",
"switch",
"wireless switches"
] | The plethora of wireless communications technologies have cut the comms wire for many applications, but these devices still require power. For home automation, this might mean a battery or mains power, but there is also an alternative that we don’t see often: Kinetic power. [Bigclivecom] bought some
kinetic switches
fr... | 30 | 12 | [
{
"comment_id": "6345157",
"author": "Gravis",
"timestamp": "2021-05-02T20:55:03",
"content": "Interesting though I wouldn’t want something so insecure in my home. I’m sure there are peculiar situations where this is an ideal switch but nothing comes to mind.",
"parent_id": null,
"depth": 1... | 1,760,373,099.710552 | ||
https://hackaday.com/2021/05/02/the-amiga-2000-you-always-wanted/ | The Amiga 2000 You Always Wanted | Jenny List | [
"Retrocomputing"
] | [
"68000",
"68k",
"amiga",
"amiga 2000",
"commodore"
] | Back in the late 1980s, Commodore pulled the masterstroke of selling several models and generations of Amiga that were all powered by essentially the same speed 68000 and associated chipset. Sure, there were differences in the RAM and other options you could fit and later models had a few extra graphics modes. Still, t... | 31 | 15 | [
{
"comment_id": "6345107",
"author": "NQ",
"timestamp": "2021-05-02T17:13:34",
"content": "Way cool. I ran a BBS in my small midwestern town on the Amiga 2000 for 4 years from 1990 to 1994 using the C-Net software which in my opinion was the most configurable bbs software ever made for the Amiga. ... | 1,760,373,099.645402 | ||
https://hackaday.com/2021/05/02/ingenuity-completes-fourth-flight-on-mars-gets-a-new-mission/ | Ingenuity Completes Fourth Flight On Mars, Gets A New Mission | Dan Maloney | [
"Hackaday Columns",
"News",
"Slider",
"Space"
] | [
"helicopter",
"Ingenuity",
"Jezero",
"mars",
"mission",
"Perseverance",
"planetary",
"uav"
] | It’s the same on Mars as it is here — just when you’re getting used to your job, the bosses go and change things up.
At least that’s our read on the situation at Jezero crater, where
the Mars Ingenuity helicopter has just had its mission upgraded and extended
. In
a Friday morning press conference
, the Ingenuity fligh... | 50 | 16 | [
{
"comment_id": "6345088",
"author": "Rogfanther",
"timestamp": "2021-05-02T15:20:18",
"content": "Yeah, typical. Management announcing changing of plans and schedules on Fridays. Corporate world has arrived on Mars.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_... | 1,760,373,099.799337 | ||
https://hackaday.com/2021/05/02/an-epic-quest-to-put-more-music-on-an-ipod-nano-3g/ | An Epic Quest To Put More Music On An IPod Nano 3G | Tom Nardi | [
"classic hacks",
"ipod hacks"
] | [
"flash storage",
"ipod",
"ipod nano",
"Rockbox"
] | While many would argue that the original iPod is the most iconic entry in the long and diverse line of digital audio players that Apple released over the years, there must certainly be some consideration for the third generation (3G) iPod Nano. It’s a device that was ahead of its time in many ways, and is still perfect... | 18 | 9 | [
{
"comment_id": "6345140",
"author": "Hirudinea",
"timestamp": "2021-05-02T19:59:44",
"content": "A year!? I admire his persistance.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6345186",
"author": "Gregg Eshelman",
"timestamp": "2021-05-03T00:37:45"... | 1,760,373,100.003035 | ||
https://hackaday.com/2021/05/02/pool-temperature-monitor-mollifies-fortunate-but-frustrated-children/ | Pool Temperature Monitor Mollifies Fortunate But Frustrated Children | Kristina Panos | [
"home hacks",
"Wireless Hacks"
] | [
"18650",
"adafruit magtag",
"ESP32",
"pool temperature monitor",
"PVC"
] | Who needs the city pool when you can party in the private pool over at Grandma and Grandpa’s house? No need to wait until Memorial Day weekend when it hits 90° F in the first week of May. But how can you placate grandchildren who want to know each and every day if it’s finally time to go swimming, and the pool itself i... | 25 | 8 | [
{
"comment_id": "6345046",
"author": "abjq",
"timestamp": "2021-05-02T10:34:33",
"content": "…and if the grandparents are getting a bit lonely they can hack the monitor by putting it in a bucket of warm water…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,100.16449 | ||
https://hackaday.com/2021/05/01/two-player-pvc-racing-rig-plays-daytona-usa/ | Two-Player PVC Racing Rig Plays Daytona USA | Lewin Day | [
"Games"
] | [
"daytona usa",
"PVC",
"pvc-pipe",
"sega"
] | SEGA’s
Daytona USA
is that big orange arcade racing machine you remember from the 90s that still seems to hang on in cinemas and pizza joints worldwide. Its controls may be floaty and physics unrealistic, but it’s probably the one racing game that almost everyone has played at one point or other.
[Tom Tilley] decided t... | 9 | 5 | [
{
"comment_id": "6345018",
"author": "captnmike",
"timestamp": "2021-05-02T05:37:28",
"content": "I don’t do video games, but everyone seemed to be having a good time, so good job",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6345537",
"author": "To... | 1,760,373,100.264433 | ||
https://hackaday.com/2021/05/01/coffee-cupping-is-a-grind-spectroscopy-could-brew-better-beans/ | Coffee Cupping Is A Grind — Spectroscopy Could Brew Better Beans | Kristina Panos | [
"chemistry hacks"
] | [
"coffee",
"coffee beans",
"coffee quality",
"cupping",
"Near Infrared",
"NIR",
"pocket spectrometer",
"robot",
"spectrometer"
] | If you’ve ever bought whole coffee beans, chances are good that there was all kinds of information on the bag that led to your decision, like the origin, the roast type, and the flavor notes. Traditionally, coffee grading — that’s judging the aroma of both dry and wet grounds and slurping the coffee evenly across the t... | 18 | 9 | [
{
"comment_id": "6344990",
"author": "Garth Bock",
"timestamp": "2021-05-02T02:15:14",
"content": "Water is very important too.Infact your life depends on waterYou see without water I can’t make coffeeWithout coffee…. well you can see where this is going…☕☕☕☕☕",
"parent_id": null,
"depth": 1... | 1,760,373,099.939468 | ||
https://hackaday.com/2021/05/01/this-bunny-reminds-toddlers-that-its-night-time/ | This Bunny Reminds Toddlers That It’s Night Time | Jenny List | [
"home hacks"
] | [
"children",
"nightlight",
"sleep",
"toddlers"
] | It’s easy to spot recent parents, they are the people who look as though they haven’t slept in months. Sometimes the little bundle of joy responsible isn’t even a babe in arms but a toddler; old enough to wake up and find their parents for some solace but not old enough to understand that not everyone is up for being w... | 14 | 8 | [
{
"comment_id": "6344973",
"author": "Mr Name Required",
"timestamp": "2021-05-01T23:41:26",
"content": "The ‘trick’ to making babies sleep is to take them outside for a short time in the early evening to see the sky, and sun setting. This helps with their circadian rythms and they sleep better. I s... | 1,760,373,100.391918 | ||
https://hackaday.com/2021/05/01/winners-of-hackadays-data-loggin-contest-bluetooth-gardening-counting-cups-and-predicting-rainfall/ | Winners Of Hackaday’s Data Loggin’ Contest: Bluetooth Gardening, Counting Cups, And Predicting Rainfall | Tom Nardi | [
"contests",
"Roundup"
] | [
"data analysis",
"data logging",
"environmental monitoring",
"machine learning",
"sensors",
"weather station"
] | The votes for
Hackaday’s Data Loggin’ Contest
have been received, saved to SD, pushed out to MQTT, and graphed. Now it’s time to announce the three projects that made the most sense out of life’s random data and earned themselves a $100 gift certificate for Tindie, the Internet’s foremost purveyor of fine hand-crafted ... | 2 | 1 | [
{
"comment_id": "6344937",
"author": "Anonymous",
"timestamp": "2021-05-01T20:44:56",
"content": "Everyone should know today is “World Naked Gardening Day“, always the first Saturday in May (yes, really).",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "634495... | 1,760,373,100.210727 | ||
https://hackaday.com/2021/05/01/could-seven-gamers-play-quake-on-just-one-1996-sgi-machine/ | Could Seven Gamers Play Quake On Just One 1996 SGI Machine? | Lewin Day | [
"computer hacks",
"Games"
] | [] | [Linus Tech Tips] undertook a fun experiment a few years back. By running multiple virtual machines on a single tower PC with tons of RAM and GPUs, it was possible to let seven gamers play on a single rig at once. [CelGenStudios] found the idea intriguing,
and has theorised that the same feat could be possible on mid-1... | 46 | 10 | [
{
"comment_id": "6344895",
"author": "Doug",
"timestamp": "2021-05-01T17:13:37",
"content": "Multi-head Linux was available over 10 years ago so what’s the big deal. HP even sold PCs pre-configured with multi-head support but only to 3rd world countries. ie they refused to sell into first world mar... | 1,760,373,100.344464 | ||
https://hackaday.com/2021/05/01/if-you-can-measure-it-you-must-display-it/ | If You Can Measure It, You Must Display It | Elliot Williams | [
"3d Printer hacks",
"Hackaday Columns",
"Tool Hacks"
] | [
"data analysis",
"data logging",
"newsletter",
"plotting"
] | When can you be sure that you’re logging enough data? When you’re logging
all
of the data! Of course there are exceptions to the above tongue-in-cheek maxim, but it’s certainly a good start. Especially since data storage on, for instance, an SD card is so easy and cheap these days, there’s almost no reason to not recor... | 16 | 4 | [
{
"comment_id": "6344852",
"author": "shinsukke",
"timestamp": "2021-05-01T14:05:22",
"content": "This is an absolutely fascinating topic to me, I would like to know what everyone else likes to use for visualising data.For example, I mostly use python+Qt or tkinter or matplotlib for displaying data ... | 1,760,373,100.451412 | ||
https://hackaday.com/2021/05/01/3d-printer-control-board-packs-a-raspberry-pi-compute-module-4/ | 3D Printer Control Board Packs A Raspberry Pi Compute Module 4 | Tom Nardi | [
"3d Printer hacks",
"Raspberry Pi"
] | [
"3D printer controller board",
"cm4",
"klipper",
"Octoprint",
"stm32"
] | Traditionally, 3D printer control boards have used simplistic 8-bit microcontrollers to command the stepper drivers and ultimately move the machine where it needs to go. Newer boards have switched over to 32-bit microcontrollers, but they’re still relatively limited computationally. Because of this, a Raspberry Pi runn... | 51 | 14 | [
{
"comment_id": "6344808",
"author": "Laura",
"timestamp": "2021-05-01T11:03:27",
"content": "Kind of a rough name, eh?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344812",
"author": "Arthur Wolf",
"timestamp": "2021-05-01T11:13:58",
... | 1,760,373,100.541492 | ||
https://hackaday.com/2021/05/01/apple-picking-robot-stems-from-labor-shortage/ | Apple-Picking Robot Stems From Labor Shortage | Kristina Panos | [
"Robots Hacks"
] | [
"apple picking",
"apples",
"gripper",
"harvesting",
"harvesting robot",
"robotic gripper"
] | Among all the job-related problems wrought by the pandemic, here is another one that comes as the result of people generally staying home: there are hardly any backpackers to do traditional transient backpacker jobs like picking apples. Researchers at Monash University’s Department of Mechanical and Aerospace engineeri... | 35 | 15 | [
{
"comment_id": "6344791",
"author": "fabien tuizat",
"timestamp": "2021-05-01T09:19:36",
"content": "pommes gratuite??",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344923",
"author": "Hirudinea",
"timestamp": "2021-05-01T19:38:05",
... | 1,760,373,100.61598 | ||
https://hackaday.com/2021/04/30/modding-a-casio-w800-h-with-a-countdown-timer/ | Modding A Casio W800-H With A Countdown Timer | Lewin Day | [
"Misc Hacks"
] | [
"casio",
"watch",
"wrist watch",
"wristwatch"
] | Stock, the Casio W800-H wristwatch ships with dual time modes, multiple alarms, and a stopwatch – useful features for some. However, more is possible if you just know where to look.
[Ian] decided to dive under the hood and enable a countdown timer feature hidden from the factory.
The hack involves popping open the case... | 28 | 11 | [
{
"comment_id": "6344771",
"author": "Michael Black",
"timestamp": "2021-05-01T05:18:57",
"content": "I’ve never bothered with countdown timers, too much effort to set them up.So if I’m timing something, I just use the stopwatch function. No setup, and I just need to check occasionally.",
"pare... | 1,760,373,100.682825 | ||
https://hackaday.com/2021/04/30/vga-graphics-card-in-74xx-logic/ | VGA Graphics Card In 74xx Logic | Chris Lott | [
"Video Hacks"
] | [
"74 series logic",
"8-bit computers",
"vga",
"video card"
] | Feeling nostalgic we presume, [Glen Kleinschmidt] set out to build a
640x480x64 VGA controller card
from discrete logic chips. If we ignore the 512Kx8 Cypress SRAM video memory, he succeeds, too — and on a very readable,
single page A3 schematic
. The goal is to interface some of his older 8-bit machines, like the TRS-... | 17 | 10 | [
{
"comment_id": "6344745",
"author": "RÖB",
"timestamp": "2021-05-01T01:44:34",
"content": "This is really well done. I like the timing domain fix U5 U6 U7. Bonus point do the raw SR latch U21.I kinda got freaked out with the 1 indexing U2 (P0).I done may of these in VHDL (yeah cheating) so I may ha... | 1,760,373,100.742647 | ||
https://hackaday.com/2021/04/30/looks-like-a-pi-zero-is-actually-an-esp32-development-board/ | Looks Like A Pi Zero, Is Actually An ESP32 Development Board | Donald Papp | [
"Crowd Funding",
"Microcontrollers"
] | [
"atmegazero",
"CircuitPython",
"ESP32",
"ESP32-S2",
"espressif",
"groupgets",
"micropython",
"pi zero"
] | ATMegaZero ESP32- S2, showing optional color-coded 40-pin header (top)
The
ATMegaZero ESP32-S2 is currently being funded with a campaign on GroupGets
, and it’s a microcontroller board modeled after the Raspberry Pi Zero’s form factor. That means instead of the embedded Linux system most of us know and love, it’s an ES... | 34 | 9 | [
{
"comment_id": "6344516",
"author": "Owlman",
"timestamp": "2021-04-30T11:05:31",
"content": "“With CircuitPython, there are no upfront desktop downloads needed. Once you get your board set up, open any text editor, and start editing code. It’s that simple.” – CircuitPython website.Right up until y... | 1,760,373,100.817083 | ||
https://hackaday.com/2021/04/30/an-arduino-with-a-floppy-drive/ | An Arduino With A Floppy Drive | Jenny List | [
"Arduino Hacks",
"Retrocomputing"
] | [
"arduino",
"floppy disk",
"retrocomputer"
] | For many of us the passing of the floppy disk is unlamented, but there remains a corps of experimenters for whom the classic removable storage format still holds some fascination. The interface for a floppy drive might have required some complexity back in the days of 8-bit microcomputers, but even for today’s less acc... | 30 | 16 | [
{
"comment_id": "6344487",
"author": "JWhitten",
"timestamp": "2021-04-30T08:15:57",
"content": "I think you may have misspelled “corps of experimenters” there :-)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344663",
"author": "Hirudinea",
... | 1,760,373,100.972957 | ||
https://hackaday.com/2021/04/29/this-diy-split-flap-display-does-both-time-and-weather/ | This DIY Split-Flap Display Does Both Time And Weather | Donald Papp | [
"3d Printer hacks",
"clock hacks",
"Raspberry Pi"
] | [
"3d printed",
"python",
"raspberry pi",
"split flap",
"split-flap display",
"time",
"weather"
] | With little more than four economical stepper motors, a Raspberry Pi Zero, and a 3D printer, [Thomas Barlow] made himself
an awfully slick Smart Flip Clock
that can display not only the time, but also weather data as well. This is done by adding a few extra graphics to some of the split-flaps, so numbers can also be us... | 5 | 2 | [
{
"comment_id": "6344486",
"author": "Alphatek",
"timestamp": "2021-04-30T08:06:30",
"content": "He’s made an effort, but the write up is terrible!* The schematic is incomplete (where’s the switch?)* There’s no indication of how to assemble the parts* How does he (does he?) find the home-point of ea... | 1,760,373,101.251057 | ||
https://hackaday.com/2021/04/29/shipping-a-crt-lessons-learned/ | Shipping A CRT: Lessons Learned | Chris Lott | [
"how-to",
"Tech Hacks"
] | [
"crt",
"IBM 5153",
"retrocomputing"
] | Old CRT computer enthusiast [x86VileR] recently tracked down an IBM 5153 monitor for which he had been searching several years. Unfortunately shipping a heavy glass CRT isn’t easy. In fact, it took [VileR]
three tries to get a functioning monitor delivered intact and working
. The first one seemed reasonably protected ... | 75 | 43 | [
{
"comment_id": "6344415",
"author": "YGDES",
"timestamp": "2021-04-30T02:06:09",
"content": "Been there, done that, got the t-shirt…https://hackaday.io/page/2466-another-ebay-horror-storyIt took “only” 2 ebay auctions to get one boatanchor in working state.",
"parent_id": null,
"depth": 1,
... | 1,760,373,101.085177 | ||
https://hackaday.com/2021/04/29/an-attempt-at-3d-printing-a-hybrid-rocket-engine/ | An Attempt At 3D Printing A Hybrid Rocket Engine | Lewin Day | [
"3d Printer hacks"
] | [
"3d printed rocket",
"hybrid rocket",
"rocket"
] | Liquid fuelled engines are throttleable and monstrously powerful, but highly complex. Meanwhile, solid rocket engines are simple and cheap, but once you light them, they’re going full-bore until burnout. Hybrid rocket engines offer perks from both worlds, with simple solid fuel and the ability to throttle down by regul... | 6 | 5 | [
{
"comment_id": "6344404",
"author": "Comedicles",
"timestamp": "2021-04-29T23:36:01",
"content": "The most fascinating thing to me about his work is that he does burning flaming rocketing experiments in an attic! I’m no safety warrior but I confess I find myself looking for the fire extinguisher. (... | 1,760,373,101.294628 | ||
https://hackaday.com/2021/04/29/rgb-led-rings-teach-old-dash-new-tricks/ | RGB LED Rings Teach Old Dash New Tricks | Tom Nardi | [
"car hacks",
"LED Hacks",
"Microcontrollers"
] | [
"canbus",
"dashboard",
"digital display",
"led ring",
"miata",
"RGB LED"
] | We’ve seen several so-called “digital dash” upgrades over the years that either augment, or completely replace, a vehicle’s original dashboard indicators with new displays. Whether its seven segment LEDs or a full-on graphical interface powered by the Raspberry Pi, the end result is the same: a dashboard that looks wil... | 9 | 5 | [
{
"comment_id": "6344463",
"author": "[skaarj]",
"timestamp": "2021-04-30T05:56:43",
"content": "So I’m the only one obsessed with CRTs in dashboard.Cool.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344484",
"author": "Kelvin",
"timestamp... | 1,760,373,101.891099 | ||
https://hackaday.com/2021/04/29/a-50-cnc/ | A $50 CNC | Al Williams | [
"Arduino Hacks",
"cnc hacks"
] | [
"cnc",
"stepper motor"
] | In theory, there’s isn’t much to building a CNC machine. Hook a bit to a motor and move the motor around with some lead screws and stepper motors. Easy. But, of course, the devil is in the details. [DAZ] made
a nice-looking and inexpensive rig
that probably isn’t the most precise CNC in the world, but it looks like it ... | 63 | 14 | [
{
"comment_id": "6344333",
"author": "mark",
"timestamp": "2021-04-29T18:51:23",
"content": "CNC is an initialism which stands for “Computer Numerical Control”, a collective adjective. It describes the word that follows it, differentiating it from, for example, a manual device. But if nothing foll... | 1,760,373,101.75652 | ||
https://hackaday.com/2021/04/30/look-out-below-chinas-heavy-lift-rocket-due-for-uncontrolled-reentry-within-days/ | Look Out Below! China’s Heavy-Lift Rocket Due For Uncontrolled Reentry Within Days | Tom Nardi | [
"News",
"Space"
] | [
"china",
"low earth orbit",
"reentry",
"rocket",
"space station"
] | On April 28th, China successfully put the core module of their Tianhe space station into orbit with the latest version of the Long March 5B heavy-lift booster. This rocket, designed for launching large objects into low Earth orbit, is unique in that the 33.16 m (108.8 ft) first stage carries the payload all the way to ... | 57 | 22 | [
{
"comment_id": "6344692",
"author": "Hirudinea",
"timestamp": "2021-04-30T21:49:49",
"content": "Historically China was the central Kingdom and all others were tributaries or barbarians, seems in the CPP this attitude has never changed.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,101.394857 | ||
https://hackaday.com/2021/04/30/an-led-heartbeat-display-you-can-wear-on-your-sleeve/ | An LED Heartbeat Display You Can Wear On Your Sleeve | Lewin Day | [
"Medical Hacks"
] | [
"emotibit",
"heart monitor",
"heart rate monitor",
"PPG",
"pulse oximeter"
] | There are a few different ways to take a person’s pulse, with varying utility depending on the categories said patient fits in to. [Nitin Nair]’s method doesn’t really have a medical application,
but it’s certainly a neat example of what you can do with modern sensors.
The build combines an EmotiBit sensor platform wit... | 3 | 3 | [
{
"comment_id": "6344676",
"author": "Greg A",
"timestamp": "2021-04-30T21:03:21",
"content": "At the children’s museum here there is an exhibit that is some sort of bespoke circuit to count your pulse if you put one hand each on a couple of electrodes (brass cylinders on a durable handle). It is s... | 1,760,373,101.436563 | ||
https://hackaday.com/2021/04/30/homemade-edm-machine-moves-from-prototype-to-production/ | Homemade EDM Machine Moves From Prototype To Production | Dan Maloney | [
"cnc hacks",
"Tool Hacks"
] | [
"arc",
"cnc",
"dielectric",
"EDM",
"Electrical Discharge Machining",
"igbt",
"subtractive"
] | Of all the methods of making big pieces of metal into smaller pieces of metal, perhaps none is more interesting than electrical discharge machining. EDM is also notoriously fussy, what with having to control an arc discharge while precisely positioning the tool relative to the workpiece. Still, some home gamers give it... | 42 | 18 | [
{
"comment_id": "6344640",
"author": "coldfarnorth",
"timestamp": "2021-04-30T19:05:07",
"content": "I really have nothing other to say than “This is awesome!”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352999",
"author": "Frank",
"times... | 1,760,373,101.595599 | ||
https://hackaday.com/2021/04/30/mice-develop-inside-an-artificial-womb/ | Mice Develop Inside An Artificial Womb | Kristina Panos | [
"Featured",
"Interest",
"Lifehacks",
"News",
"Science"
] | [
"gestation",
"mice",
"mouse embryos"
] | Well, it looks like those fetus fields from
The Matrix
(1999) just became a little bit more plausible. Although people-growing is probably a long way off,
mice can now mostly develop inside an artificial uterus
(try private window if you hit a paywall) thanks to a breakthrough in developmental biology. So far, the mice... | 40 | 17 | [
{
"comment_id": "6344618",
"author": "bob",
"timestamp": "2021-04-30T17:39:31",
"content": "Long term human hibernation for interstellar travel is currently impossible but keeping embryos on ice and gestating them artificially is increasingly possible.",
"parent_id": null,
"depth": 1,
"r... | 1,760,373,101.517981 | ||
https://hackaday.com/2021/04/30/hackaday-podcast-116-three-diy-lab-instruments-two-tickers-and-a-microcar/ | Hackaday Podcast 116: Three DIY Lab Instruments, Two Tickers, And A MicroCar | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys select our favorite hardware hacks of the past week. This episode is packed with DIY lab instruments, including a laser microscope, a Raspberry Pi spectrometer, and a stepper motor tester that can tell you what’s going on all the way down to the microsteps. We wax poetic... | 2 | 1 | [
{
"comment_id": "6344598",
"author": "Lokesh Kaushik",
"timestamp": "2021-04-30T16:05:16",
"content": "Unable to download it, it says file not available.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344602",
"author": "Mike Szczys",
"times... | 1,760,373,101.634021 | ||
https://hackaday.com/2021/04/30/airports-are-now-airbnbs-for-honeybees/ | Airports Are Now AirBNBs For Honeybees | Kristina Panos | [
"News"
] | [
"airport",
"bees",
"colony collapse disorder",
"honeybees",
"symbiosis"
] | In the summer of 2012, honeybees swarmed the Pittsburgh airport, probably because the conditions are favorable there. Like many airports, the tarmac is surrounded by wild, wide-open fields that exist to contain the cacophony. And a couple of nearby creeks are dotted with plenty of forage-worthy wildflowers.
Free honey?... | 12 | 8 | [
{
"comment_id": "6344594",
"author": "socksbot",
"timestamp": "2021-04-30T15:58:48",
"content": "*AirBeeNBeeThat is all.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6344604",
"author": "Ostracus",
"timestamp": "2021-04-30T16:31:18",
"content": "... | 1,760,373,101.837231 | ||
https://hackaday.com/2021/04/30/this-week-in-security-dan-kaminsky-banned-from-kernel-development-ransomware-and-the-pentagons-ipv4-addresses/ | This Week In Security: Dan Kaminsky, Banned From Kernel Development, Ransomware, And The Pentagon’s IPv4 Addresses | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"Drupal",
"ipv4",
"ransomware",
"This Week in Security"
] | This week we’re starting off with a somber note, as
Dan Kaminsky passed at only 42
, of diabetic ketoacidosis. Dan made a name for himself by noticing a weakness in DNS response verification that could allow attackers to poison a target DNS resolver’s cache. A theoretical attack was known, where spoofed DNS responses c... | 22 | 8 | [
{
"comment_id": "6344578",
"author": "Ostracus",
"timestamp": "2021-04-30T14:51:10",
"content": "” We’ve covered some of the vulnerabilities, but ransomware schemes are actively hitting the unpatched NAS devices exposed to the internet. ”I think I see the problem.",
"parent_id": null,
"depth... | 1,760,373,103.993042 | ||
https://hackaday.com/2021/04/28/alone-but-not-lonely-remembering-astronaut-michael-collins/ | Alone, But Not Lonely: Remembering Astronaut Michael Collins | Dan Maloney | [
"Featured",
"Interest",
"News",
"Slider"
] | [
"apollo 11",
"astronaut",
"Columbia",
"Michael Collins",
"nasa",
"National Air and Space Museum",
"obituary"
] | With many of the achievements of the Space Race now more than half a century behind us, it’s no wonder that we’re steadily losing the men who rode the rockets of the Mercury, Gemini, and Apollo programs into space. They were all very much in their primes at the time, but no matter what you’ve accomplished in life, even... | 21 | 10 | [
{
"comment_id": "6344090",
"author": "Leonard",
"timestamp": "2021-04-28T22:19:35",
"content": "A hero.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6344092",
"author": "Tom Brusehaver",
"timestamp": "2021-04-28T22:34:25",
"content": "If you ever... | 1,760,373,103.933802 | ||
https://hackaday.com/2021/04/28/winners-of-hackadays-earth-day-contest-solar-lic-auto-return-parafoil-water-flowmeter/ | Winners Of Hackaday’s Earth Day Contest: Solar LIC, Auto-Return Parafoil, & Water Flowmeter | Mike Szczys | [
"contests",
"Roundup"
] | [
"Earth Day Challenge",
"flow meter",
"high-altitude",
"high-altitude baloon",
"LIC",
"Lithium Ion Capacitor",
"parachute",
"parafoil"
] | Winners have just been announced for
Hackaday’s Earth Day Challenge
. We were on the lookout for projects that raise awareness of environmental issues and are happy to celebrate three top winners. Each have won a $200 shopping spree from Digi-Key who sponsored this contest.
Pictured above is
the Open Flow Meter
by [Ebe... | 10 | 5 | [
{
"comment_id": "6344080",
"author": "Stan. SWAN",
"timestamp": "2021-04-28T21:50:02",
"content": "Whoops -the capacitor used is an astounding 100 Farads! Your account (somewhat understandably !) says a more normal 100 uF…",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,373,103.51122 | ||
https://hackaday.com/2021/04/28/lamps-double-as-secret-surround-sound-speakers/ | Lamps Double As Secret Surround Sound Speakers | Tom Nardi | [
"home entertainment hacks"
] | [
"lamp",
"LED lighting",
"speaker",
"surround sound",
"table lamp"
] | Combined with today’s massive flat panel displays, a nice surround sound system can provide an extremely immersive environment for watching movies or gaming. But a stumbling block many run into is speaker placement. The front speakers generally just go on either side of the TV, but finding a spot for the rear speakers ... | 23 | 10 | [
{
"comment_id": "6344053",
"author": "Misterlaneous",
"timestamp": "2021-04-28T20:19:27",
"content": "While AC could induce a 60hz hum, a wall wart usually has extremely dirty power with lots of high frequency harmonics. It’d be better to run power up 1 pole and audio up another, to run AC to the sp... | 1,760,373,104.116982 | ||
https://hackaday.com/2021/04/28/clever-gas-mixer-gets-just-the-right-blend-for-homebrew-laser-tubes/ | Clever Gas Mixer Gets Just The Right Blend For Homebrew Laser Tubes | Dan Maloney | [
"Laser Hacks",
"Tool Hacks"
] | [
"carbon dioxide",
"compressor",
"gas",
"helium",
"laser",
"mixer",
"nitrogen",
"volumetric"
] | [Lucas] over at Cranktown City on YouTube has been very busy lately, but despite current appearances, his latest project is not a welder. Rather, he built
a very clever gas mixer
for filling his homemade CO2 laser tubes, which only looks like a welding machine. (Video, embedded below.)
We’ve been following [Lucas] on h... | 11 | 5 | [
{
"comment_id": "6344029",
"author": "Dan",
"timestamp": "2021-04-28T18:37:20",
"content": "Very cool idea and device. But seems very much like unnecessary work to change bottle so many times. Why not add a solenoid for each bottle and get the mix done automatically.",
"parent_id": null,
"de... | 1,760,373,103.558673 | ||
https://hackaday.com/2021/04/28/vcf-swap-meet-takes-step-back-to-move-forward/ | VCF Swap Meet Takes Step Back To Move Forward | Tom Nardi | [
"cons",
"Current Events",
"Hackaday Columns",
"Retrocomputing",
"Slider"
] | [
"computer show",
"swap meet",
"VCF",
"VCF East",
"Vintage Computer Festival",
"Vintage Computer Festival East"
] | When computers were the sort of thing you ordered from a catalog and soldered together in your garage, swap meets were an invaluable way of exchanging not just hardware and software, but information. As computers became more mainstream and readily available, the social aspect of these events started to take center stag... | 44 | 16 | [
{
"comment_id": "6344002",
"author": "Jon H",
"timestamp": "2021-04-28T17:18:33",
"content": "Y’all should have a Calendar page on the site to which organizations could submit events like this.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344006",
... | 1,760,373,103.872783 | ||
https://hackaday.com/2021/04/28/grinding-coffee-beans-the-machine-shop-way/ | Grinding Coffee Beans The Machine Shop Way | Kristina Panos | [
"Lifehacks",
"Misc Hacks"
] | [
"blade grinder",
"burr grinder",
"coffee grinder",
"flywheel",
"food-grade industrial light bulb"
] | Okay, so you bought a bag of heavenly-smelling single-origin beans down at the hipster coffee shop, but forgot to have them ground. What do you do? If you’re [Jimmy DiResta], there’s no way you can run down to Walmart and pick up a grinder for $15. You commune with your tools and spend a few hours building a grinder fr... | 31 | 12 | [
{
"comment_id": "6343980",
"author": "Charles",
"timestamp": "2021-04-28T16:23:46",
"content": "yea, when i saw the beveled gear i too figured it was a burr grinder. A real barista would never use a shear grinder. But i agree it is a cool hack…",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,373,103.629186 | ||
https://hackaday.com/2021/04/28/exploring-the-world-of-nintendo-3ds-homebrew/ | Exploring The World Of Nintendo 3DS Homebrew | Tom Nardi | [
"Featured",
"handhelds hacks",
"Interest",
"Nintendo Hacks",
"Slider",
"Software Hacks"
] | [
"console hacking",
"console modding",
"custom firmware",
"emulation",
"homebrew",
"nintendo",
"Nintendo 3DS",
"Retroarch"
] | When Nintendo officially ended production of the 3DS in September 2020, it wasn’t exactly a surprise. For one thing, some variation of the handheld system had been on the market since 2011. Which is not to say the product line had become stagnant: the system received a considerable mid-generation refresh, and there was... | 20 | 10 | [
{
"comment_id": "6343960",
"author": "mark g",
"timestamp": "2021-04-28T14:58:15",
"content": "I never did get a 3DS. I loved the DS, though. Specifically, the DS Lite was a great size, at a great price, and with an amazing library of games. It was also easy to run homebrew on with a simple flash ca... | 1,760,373,104.052827 | ||
https://hackaday.com/2021/04/29/wireless-micropython-programming-with-thonny/ | Wireless MicroPython Programming With Thonny | Chris Lott | [
"Hackaday Columns",
"how-to"
] | [
"ESP32",
"micropython",
"Thonny",
"WebREPL"
] | I’ve been playing with a few MicroPython projects recently on several different embedded platforms, including a couple of ESP32 WiFi modules. There are various ways to program these modules:
Use a serial terminal and
ampy
(maintained by [devxpy] since being dropped by Adafruit in 2018).
If you use Pycom boards or WiFy ... | 11 | 8 | [
{
"comment_id": "6344355",
"author": "Ricardo Ruiz Diaz",
"timestamp": "2021-04-29T20:05:39",
"content": "I would like to know “Why NO”, I would like to know your opinion, in advance thank you very much for your time.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_i... | 1,760,373,103.687488 | ||
https://hackaday.com/2021/04/29/ascii-schematic-diagrams/ | ASCII Schematic Diagrams | Chris Lott | [
"Tech Hacks"
] | [
"ascii art",
"schematics"
] | We wondered recently about those crude ASCII schematics you see in some documentation — are there any dedicated schematic-focused tools to draw them, or are they just hand-crafted using various ASCII-art drawing tools? To our surprise, there is such a tool. It is called
AACircuit
and was developed by [Andreas Weber]. I... | 40 | 19 | [
{
"comment_id": "6344278",
"author": "deneteus",
"timestamp": "2021-04-29T15:38:25",
"content": "I haven’t seen ascii schematics since the 90s. That’s some BBS and Newsgroup type shizz.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344294",
"author... | 1,760,373,104.196548 | ||
https://hackaday.com/2021/04/29/solar-and-wind-could-help-support-ethiopias-grand-dam-project/ | Solar And Wind Could Help Support Ethiopia’s Grand Dam Project | Lewin Day | [
"Current Events",
"Featured",
"green hacks",
"News",
"Slider"
] | [
"dam",
"egypt",
"ethiopia",
"GERD",
"Grand Ethiopian Renaissance Dam",
"hydroelectric",
"hydroelectric plant",
"hydropower",
"infrastructure",
"sudan"
] | Ethiopia is in the midst of a major nation-building project, constructing the Grand Ethiopian Renaissance Dam (GERD). Upon completion, GERD will become the largest hydropower plant in Africa, providing much needed electricity for the country’s growing population.
The project dams the Blue Nile, a river which later flow... | 22 | 9 | [
{
"comment_id": "6344250",
"author": "aleksclark",
"timestamp": "2021-04-29T14:21:55",
"content": "I like it – essentially treating the dam as a grid battery has a lot of benefits.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6344251",
"author": "a... | 1,760,373,104.262401 | ||
https://hackaday.com/2021/04/29/print-your-own-wireless-2-1-speaker-system/ | Print Your Own Wireless 2.1 Speaker System | Lewin Day | [
"3d Printer hacks"
] | [
"3d printed speaker",
"bluetooth speaker",
"Speaker enclosure"
] | Buying a set of stylish bookshelf speakers is a perfectly reasonable thing to do, and remains legal in most free countries around the world. However, if you really want to impress with a pretty pair to crank out your tunes, you might consider designing and printing your own.
[EH_Design] did just that with a stylish 2.1... | 17 | 12 | [
{
"comment_id": "6344209",
"author": "2.2 enjoyer",
"timestamp": "2021-04-29T11:37:01",
"content": "cool buildhumans can discern stereo cues at low frequencyit’s subtleeasier if you can relax and listenpeople are differenthave nice day",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,104.386495 | ||
https://hackaday.com/2021/04/29/rc-ekranoplan-uses-lidar-to-fly-in-ground-effect/ | RC Ekranoplan Uses LIDAR To Fly In Ground Effect | Lewin Day | [
"Misc Hacks"
] | [
"ardupilot",
"ekranoplan",
"lidar"
] | Ekranoplans are a curious class of vehicle; most well known for several Soviet craft designed to operate at sea, flying just above the waves in ground effect. [rctestflight] had accidentally come across the ground effect flight regime himself years ago,
and decided it was time to build an ekranoplan of his own.
I want ... | 33 | 4 | [
{
"comment_id": "6344198",
"author": "Dude",
"timestamp": "2021-04-29T09:54:24",
"content": "It’s a moot point whether this is actually demonstrating the ground effect, or whether it’s simply flying low to the ground, since these tiny RC planes have so much power to their weight that you can strap a... | 1,760,373,104.332911 | ||
https://hackaday.com/2021/04/28/measuring-an-atom/ | Measuring An Atom | Al Williams | [
"Science"
] | [
"atom",
"Chemistry",
"molecule",
"science"
] | Do you need a well-equipped lab to
measure the size of an atom
(German,
machine translation
)? According to [stoppi], no. You need sunflower oil, some bear moss spores, and a bit of gasoline. You’ll also need some common things like a syringe, a baking sheet, and a jar. You can see the whole process in the video below.... | 17 | 9 | [
{
"comment_id": "6344161",
"author": "Pedant",
"timestamp": "2021-04-29T06:21:07",
"content": "https://youtu.be/lmgCgzjlWO4This looks A LOT like Matt Parker & Steve Mould’s experiment with oleic acid for Pi Day 2021. For their experiment, they worked backwards, using the volume of an oleic acid mole... | 1,760,373,104.969786 | ||
https://hackaday.com/2021/04/28/open-source-pizza-compass-will-show-you-the-way/ | Open Source Pizza Compass Will Show You The Way | Tom Nardi | [
"gps hacks",
"LED Hacks"
] | [
"compass",
"geolocation",
"gps",
"joe grand",
"RGB LED"
] | In
Pirates of the Caribbean
, Captain Jack Sparrow has an enchanted compass that points to what the holder wants most in life.
The Pizza Compass created by [Joe Grand] is basically the same thing
, except it’s powered by a Particle Boron instead of a voodoo spell. Though depending on who’s holding the thing, we imagine... | 18 | 10 | [
{
"comment_id": "6344129",
"author": "Eric",
"timestamp": "2021-04-29T02:35:39",
"content": "How often did you have trouble reflashing your particle? Especially when the workbench attempt to put it into dfu mode?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "... | 1,760,373,105.261814 | ||
https://hackaday.com/2021/04/26/where-were-going-we-dont-need-keycaps/ | Where We’re Going, We Don’t Need Keycaps | Kristina Panos | [
"Microcontrollers",
"Peripherals Hacks"
] | [
"adjustable",
"adjustable keyboard",
"Elite-C",
"Kailh chocs",
"key wells",
"QMK",
"RJ-9"
] | Just when we thought we’d seen the peak of ergonomic, split keyboards, along comes [Peter Lyons] with the Squeezebox —
an adjustable, column-staggered, streamlined beauty with 21 keys per hand
. Much like the Kinesis Advantage and the Dactyl, the user’s fingers are allowed to dangle comfortably and stay in their natura... | 14 | 4 | [
{
"comment_id": "6343481",
"author": "Foldi-One",
"timestamp": "2021-04-26T23:36:30",
"content": "What all these ideas miss is a mouse pointer you don’t have to move for, which is the one thing I miss about not using a laptop (preferably with the IBM Thinkpad style joystick) much anymore. With such ... | 1,760,373,104.917515 | ||
https://hackaday.com/2021/04/26/pneumatic-can-crusher-awaits-your-command/ | Pneumatic Can Crusher Awaits Your Command | Tom Nardi | [
"Arduino Hacks",
"Tool Hacks"
] | [
"can crusher",
"ESP-01",
"google assistant",
"Pneumatic cylinder",
"Solenoid valve",
"voice controlled"
] | A powerful robot awaiting for a verbal command to crush its foes might sound like something from a science fiction film, but now
it’s a permanent fixture of the [Making Stuff] garage
. (Video, embedded below.) Thankfully this robot’s sworn enemy are aluminum cans, and the person controlling it with their voice isn’t a... | 22 | 8 | [
{
"comment_id": "6343416",
"author": "Darren",
"timestamp": "2021-04-26T20:20:44",
"content": "The recycling depot here in Canada won’t take cans that are crushed. If you crush them you can still recycle it but you won’t get your deposit back.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,373,104.862346 | ||
https://hackaday.com/2021/04/26/indian-makers-respond-to-the-covid-19-pandemic-by-producing-oxygen-concentrators/ | Indian Makers Respond To The COVID-19 Pandemic By Producing Oxygen Concentrators | Jenny List | [
"Medical Hacks"
] | [
"COVID",
"crowdfunding",
"Maker's Asylum",
"oxikit",
"oxygen concentrator"
] | We’ve all spent the last year or more under the shadow of the COVID-19 pandemic, and though some of us may have been vaccinated or come through its various waves it remains far from over. One of the hardest-hit parts of the world at the moment is in India, where health services are struggling to maintain adequate oxyge... | 56 | 14 | [
{
"comment_id": "6343371",
"author": "Val",
"timestamp": "2021-04-26T18:45:07",
"content": "This article seems really well timed with the Indian new year hehe",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343404",
"author": "geocrasher",
"t... | 1,760,373,105.201418 | ||
https://hackaday.com/2021/04/26/linux-fu-a-little-bit-of-network-history-repeating-itself/ | Linux Fu: A Little Bit Of (Network) History Repeating Itself | Al Williams | [
"Hackaday Columns",
"Linux Hacks",
"Network Hacks",
"Slider"
] | [
"linux",
"Linux Fu",
"network",
"pcap",
"tcpdump",
"tcpreplay",
"wireshark"
] | These days, embedded systems often have networks and that can make them significantly more complex. Networks are usually pretty nondeterministic and there are a variety of oddball conditions. For example, when your public-access pick and place machine gets written up on Hackaday and you suddenly get a 50X surge in traf... | 5 | 2 | [
{
"comment_id": "6343328",
"author": "Matt Hallacy",
"timestamp": "2021-04-26T17:20:30",
"content": "“tcpdump src 192.168.1.111 # data to .111”Should be“tcpdump dest 192.168.1.111 # data to .111”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343384",
... | 1,760,373,105.011964 | ||
https://hackaday.com/2021/04/26/disney-imagineerings-project-kiwi-bears-groot/ | Disney Imagineering’s “Project Kiwi” Bears Groot | Zach Zeman | [
"Robots Hacks"
] | [
"animatronics",
"bipedal",
"bipedal robot",
"disney",
"disney engineering",
"imagineering",
"walking robot"
] | Some days, we might be forgiven for believing Boston Dynamics has cornered the market on walking robots. They (and other players) are making incredible progress in their field, but three years ago Disney, trying to create autonomous, free-walking robotic actors for some of their more diminutive film characters, found n... | 31 | 12 | [
{
"comment_id": "6343251",
"author": "Ostracus",
"timestamp": "2021-04-26T15:36:55",
"content": "Uncanny Valley is soon going to have a field day.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343341",
"author": "Dude",
"timestamp": "2021-0... | 1,760,373,104.800456 | ||
https://hackaday.com/2021/04/26/blocking-out-the-sun-viable-climate-countermeasure-or-absolute-madness/ | Blocking Out The Sun: Viable Climate Countermeasure Or Absolute Madness? | Lewin Day | [
"Engineering",
"Featured",
"green hacks",
"Original Art",
"Science",
"Slider"
] | [
"climate change",
"geoengineering",
"global warming",
"scopex",
"stratospheric aerosol injection"
] | If there’s one thing humans hate, it’s exercising willpower. Whether its abstaining from unhealthy foods, going to bed early, or using less energy and reducing greenhouse gas emissions, we’re famously bad at it. Conversely, if there’s one thing humans love, it’s a workaround. Something that lets us live our lives as th... | 155 | 32 | [
{
"comment_id": "6343202",
"author": "Doug Leppard",
"timestamp": "2021-04-26T14:07:58",
"content": "Madness",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343208",
"author": "Anthony Selby",
"timestamp": "2021-04-26T14:15:57",
"cont... | 1,760,373,105.645306 | ||
https://hackaday.com/2021/04/26/build-an-esp32-stock-ticker-to-watch-your-gme-gains/ | Build An ESP32 Stock Ticker To Watch Your GME Gains | Tom Nardi | [
"classic hacks",
"Microcontrollers"
] | [
"embossing",
"ink",
"paper tape",
"solenoid",
"stock ticker",
"stocks"
] | Meme investing is all the rage these days, and what better way to get in on the
loss
fun than with your very own old-timey mechanical stock ticker? Unfortunately, they’re about as expensive and rare as you might expect for a piece of Victorian-era electronics. Lucky for us,
[secretbatcave] has shown that you can put to... | 14 | 4 | [
{
"comment_id": "6343163",
"author": "mrehorst",
"timestamp": "2021-04-26T11:38:25",
"content": "This looks like a fun project. I always loved watching Gomez Addams checking his investments on a stock ticker- buy high, sell low!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,105.316053 | ||
https://hackaday.com/2021/04/27/ask-hackaday-why-make-modular-hardware/ | Ask Hackaday: Why Make Modular Hardware? | Adam Zeloof | [
"Ask Hackaday",
"Hackaday Columns",
"handhelds hacks",
"News",
"Original Art",
"Raspberry Pi"
] | [
"modular",
"Project Ara",
"raspberry pi",
"Snap Circuits"
] | In the movies, everything is modular. Some big gun fell off the spaceship when it crashed? Good thing you can just pick it up and fire it as-is (looking at you,
Guardians of the Galaxy 2
). Hyperdrive dead? No problem, because in the Star Wars universe you can just drop a new one in and be on your way.
Of course, thing... | 33 | 12 | [
{
"comment_id": "6343715",
"author": "localroger",
"timestamp": "2021-04-27T17:16:34",
"content": "The problems with modularity are size and durability. Phones are hyper-miniaturized and there simply isn’t room in the form factor for the connectors and module walls that would separate the functions... | 1,760,373,105.389371 | ||
https://hackaday.com/2021/04/27/paper-pi-is-an-ergonomic-cyberdeck-meant-for-thumbs/ | Paper Pi Is An Ergonomic Cyberdeck Meant For Thumbs | Kristina Panos | [
"Raspberry Pi"
] | [
"cyberdeck",
"e-ink",
"e-ink display",
"Emacs",
"Miryoku layout",
"raspberry pi"
] | What’s the fastest way to master console stuff like
screen
or
emacs
? Force yourself to use it exclusively, of course. But maybe you’d be tempted to cheat with a desktop. We know we would be. In that case, you ought to build
a console-only cyberdeck like this sweet little thing
by [a8skh4].
This cyberdeck serves anothe... | 7 | 6 | [
{
"comment_id": "6343708",
"author": "pac",
"timestamp": "2021-04-27T16:15:31",
"content": "Yes…I know what my next project will be now.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6343712",
"author": "Eitwo Stave",
"timestamp": "2021-04-27T16:35:18... | 1,760,373,105.437557 | ||
https://hackaday.com/2021/04/27/review-sequre-sq-d60-temperature-controlled-soldering-iron/ | Review: Sequre SQ-D60 Temperature Controlled Soldering Iron | Jenny List | [
"Hackaday Columns",
"Reviews",
"Slider",
"Tool Hacks"
] | [
"Sequre",
"soldering iron",
"temperature controlled soldering iron"
] | Over the past few years a new class of soldering iron has arisen: a temperature controlled iron no longer tied to a bulky mains-powered base station, but using low-voltage DC power and with all electronics concealed in a svelte handle. First came the Miniware TS100, and then many more, with slightly different feature ... | 38 | 16 | [
{
"comment_id": "6343670",
"author": "Somun",
"timestamp": "2021-04-27T14:16:19",
"content": "“would expect it to contain a USB-PD chip, an 8-bit microcontroller because it has none of the firmware upgradeable features of the TS100 or Pinecil”The product page that is in the article actually says it ... | 1,760,373,105.728096 | ||
https://hackaday.com/2021/04/27/texture-adds-stiffness-to-3d-parts/ | Texture Adds Stiffness To 3D Parts | Al Williams | [
"3d Printer hacks"
] | [
"bead pattern",
"ideamaker",
"pattern",
"sheet metal"
] | [Stefan] is always looking for a way to make stronger and better 3D prints. His latest experiments involve using
a texture on thin plastic parts to increase stiffness
. You can see the texture pattern in the banner above and the video below.
While a lot of people looked at IdeaMaker’s new texturing feature as something... | 16 | 10 | [
{
"comment_id": "6343658",
"author": "Ocen Jude Thaddeus",
"timestamp": "2021-04-27T13:37:26",
"content": "The idea of using texture on a thin plastics i could rate it 97%. am not sure of its brittleness and its hardness. Thanks",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,373,105.779344 | ||
https://hackaday.com/2021/04/27/the-evil-crow-is-ready-to-cause-some-rf-mayhem/ | The Evil Crow Is Ready To Cause Some RF Mayhem | Tom Nardi | [
"Radio Hacks",
"Tool Hacks"
] | [
"CC1101",
"ESP32",
"pentesting",
"radio",
"RTL-SDR"
] | There’s no doubt that the RTL-SDR project has made radio hacking more accessible than ever, but there’s only so far you can go with a repurposed TV tuner. Obviously the biggest shortcoming is the fact that you can only listen to signals, and not transmit them. If you’re ready to reach out and touch someone, but don’t n... | 34 | 11 | [
{
"comment_id": "6343623",
"author": "julian martinez",
"timestamp": "2021-04-27T10:34:22",
"content": "nice project but this is no really SDR since the CC1101 radio transceivers are not for SDR they implement the phy layer and they output decoded bits or viceversa not IQ samples.",
"parent_id":... | 1,760,373,105.915468 | ||
https://hackaday.com/2021/04/26/logic-flows-literally-in-this-water-adder/ | Logic Flows, Literally, In This Water Adder | Al Williams | [
"Misc Hacks"
] | [
"fluid logic",
"fluidic logic",
"fluidics",
"water computer"
] | A lot of elementary electronic texts use water as an analogy for electricity. You know, pressure is voltage, flow is current, and pipe diameter is resistance. It is ironic, then, that some people use fluids to build logic gates and, in fact, you can make any logic circuit you like using nothing but
water flowing throug... | 31 | 14 | [
{
"comment_id": "6343549",
"author": "Shirley Marquez",
"timestamp": "2021-04-27T05:38:18",
"content": "Doesn’t that type of logic date back to the Nixon administration?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343553",
"author": "Phillip",
... | 1,760,373,105.842331 | ||
https://hackaday.com/2021/04/26/retrotechtacular-renewable-energy-1948-edition/ | Retrotechtacular: Renewable Energy, 1948 Edition | Al Williams | [
"History"
] | [
"clean power",
"hydroelectric",
"Retrotechtacluar"
] | If you’ve got 10 minutes, how about a quick break to watch a video about renewable clean electric power? Must be a recent video, right? Nope. The
Coronet Instruction Film
below is from 1948 and covers using rivers to generate power. Hydropower isn’t a new idea, of course, and the film starts out with an old-fashioned w... | 22 | 6 | [
{
"comment_id": "6343532",
"author": "Michael Black",
"timestamp": "2021-04-27T03:21:09",
"content": "The sc’win (sockeye salmon) has never fully recovered from when the Grand Coulee Dam went up on the Columbia river. Though I gather some like the pneumatic tube that gets them upstream.",
"pare... | 1,760,373,105.974497 | ||
https://hackaday.com/2021/04/26/3d-printed-laser-scanning-confocal-microscope-measures-microns/ | 3D-Printed Laser Scanning Confocal Microscope Measures Microns | Dan Maloney | [
"Misc Hacks"
] | [
"confocal",
"delta bot",
"laser",
"metrology",
"microscope",
"optics",
"pinhole"
] | When one thinks about microscopy, it seems to be mostly qualitative. Looking at a slide teeming with bacteria or protozoans is less about making measurements and more about recognizing features and describing their appearance. Not all microscopes are created equal, though, with some being far more optimized for making ... | 15 | 9 | [
{
"comment_id": "6343143",
"author": "RÖB",
"timestamp": "2021-04-26T09:20:04",
"content": "Needs a polarizer in the detector path.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6343146",
"author": "Harvie.CZ",
"timestamp": "2021-04-26T09:34:05",
... | 1,760,373,106.121025 | ||
https://hackaday.com/2021/04/25/keep-in-touch-with-grandma-with-this-lo-tech-interface/ | Keep In Touch With Grandma, With This Lo-Tech Interface | Jenny List | [
"home hacks"
] | [
"accessibility",
"elderly",
"raspberry pi"
] | We have so many options through which to communicate with our friends and relatives during the lockdown, thanks to our smartphones and the number of apps that serve all possible needs. Impressive as they are though, a smartphone is not suitable for everyone. In particular older people can find them less easy to use, an... | 17 | 6 | [
{
"comment_id": "6343118",
"author": "Rick",
"timestamp": "2021-04-26T06:17:12",
"content": "Is this is some kind of electronic ouija board?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343255",
"author": "purplepeopleated",
"timestamp": "... | 1,760,373,106.172149 | ||
https://hackaday.com/2021/04/25/small-open-source-vehicle-hacking-platform/ | Small Open Source Vehicle Hacking Platform | Chris Lott | [
"car hacks"
] | [
"can-bus",
"car hacking",
"development boards",
"STM32F103"
] | [Florian] and his engineering team at Munich-based
bmc::labs
has developed a
clever set of prototyping boards
for vehicle hacking and rapid product development, collectively called the bmc::board or bmc::mini. These stackable development boards were initially designed for in-house use. The team took a general purpose a... | 9 | 4 | [
{
"comment_id": "6343110",
"author": "rok",
"timestamp": "2021-04-26T04:39:21",
"content": "Using a STM32F103 in a new design feels like powering a 3D printer with an ATMEGA328P.I don´t understand why a compatible, more powerful, equally available and barely more expensive STM32F411 was not used, in... | 1,760,373,106.276778 | ||
https://hackaday.com/2021/04/25/hackaday-links-april-25-2021/ | Hackaday Links: April 25, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"chip shortage",
"Ever Given",
"hackaday links",
"Ingenuity",
"mars",
"moxie",
"semiconductor",
"Stack Oveflow",
"Suez",
"wire bonding"
] | There’s much news from the Jezero Crater on Mars this week, and all of it was good. Not only did the
Ingenuity helicopter make history
by making the first powered, controlled flight of an aircraft on another planet, it made
a second longer, more complex flight
just a couple of days later. This time, the autonomous roto... | 14 | 6 | [
{
"comment_id": "6343082",
"author": "limroh",
"timestamp": "2021-04-26T01:26:30",
"content": "> On the other hand, it could be a sign of separation driving them to get something working.Desperation?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6343095",
... | 1,760,373,106.226259 | ||
https://hackaday.com/2021/04/25/arduino-mkr-makes-nespresso-monitoring-easy/ | Arduino MKR Makes Nespresso Monitoring Easy | Jenny List | [
"home hacks"
] | [
"Arduino MKR",
"coffee maker",
"Nespresso"
] | Monitoring an appliance with a microcontroller usually follows a well-worn path of diving inside and finding somewhere in the electrical circuitry that can be connected through some kind of interface to a microcontroller.
For his Nespresso pod coffee machine, [Steadman] eschewed tearing into the device
, and instead ch... | 23 | 4 | [
{
"comment_id": "6343036",
"author": "Ken",
"timestamp": "2021-04-25T20:46:37",
"content": "“A commodity sound threshold sensor board is hooked up to an Arduino MKR Zero, and this set-up logs coffee consumption.”I think this could more accurately be described as logging coffee “production”, not cons... | 1,760,373,106.402839 | ||
https://hackaday.com/2021/04/25/an-esp32-development-board-for-sailors/ | An ESP32 Development Board For Sailors | Anool Mahidharia | [
"Transportation Hacks"
] | [
"boats",
"development board",
"ESP32",
"ESP32-WROOM-32",
"marine electronics",
"NMEA 2000",
"Signal K"
] | [Matti Airas] wanted to have a better electronics platform for making his boat smarter, more connected, and safer. He found traditional marine electronics expensive and not suited for hacking and tinkering. There was also the issue of lack of interoperability between device generations from the same supplier and betwee... | 8 | 5 | [
{
"comment_id": "6343054",
"author": "Phil",
"timestamp": "2021-04-25T23:16:33",
"content": "Extra points for building arum level sensor.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6343081",
"author": "Astro Jetson",
"timestamp": "2021-04-26T01:17:... | 1,760,373,106.543316 | ||
https://hackaday.com/2021/04/25/forth-module-the-size-of-a-stick-of-gum/ | Forth Module The Size Of A Stick Of Gum | Chris Lott | [
"hardware",
"Microcontrollers"
] | [
"development boards",
"forth",
"Gumstick",
"module"
] | Australian engineer [John Catsoulis] developed a
small module called the Scamp2
dedicated to running Forth. The focus of his Udamonic project was not only to highlight Forth, but to make a module which was easy to use and doesn’t require any IDE on your computer. According to the website, these modules have found their... | 27 | 7 | [
{
"comment_id": "6342985",
"author": "Ø",
"timestamp": "2021-04-25T17:14:22",
"content": "I don’t know how I feel about the fact that I feel more informed regarding the fact that there’s mil-spec chewing gum, than a forth compatible microcontroller dev board.",
"parent_id": null,
"depth": 1,... | 1,760,373,106.723889 | ||
https://hackaday.com/2021/04/28/cubesat-for-under-1000/ | CubeSat For Under $1000? | Chris Lott | [
"Space"
] | [
"cubesat",
"low cost",
"Satellites",
"space hacks"
] | Want to build your own CubeSat but have been put off by the price? There may be a solution in the works — [RG Sat] has challenged himself to
design and build one for less than $1,000
. (Video, embedded below.)
He begins by doing a survey of available low-cost options in the first video, and finds there isn’t a complete... | 19 | 13 | [
{
"comment_id": "6343909",
"author": "Pinski1_",
"timestamp": "2021-04-28T11:33:41",
"content": "It’s easily possible to build a Cubesat/PocketQube for cheap, but you can’t be cheap on the launch. That’s easily $10 of thousands that you have to pay to someone for a spot on a launcher.",
"parent_... | 1,760,373,106.656409 | ||
https://hackaday.com/2021/04/28/run-out-of-gpio-on-your-pi-dont-despair/ | Run Out Of GPIO On Your Pi? Don’t Despair! | Jenny List | [
"Raspberry Pi"
] | [
"CSI connector",
"gpio",
"raspberry pi"
] | When the first Raspberry Pi rolled off the production line back in 2012 it sported a 26-pin expansion header that seemed to conceal endless possibilities. A later upgrade to the 40-pin header we have today unleashed a few more precious interfaces, but even then it’s still possible to run out. This was the problem faced... | 25 | 8 | [
{
"comment_id": "6343886",
"author": "Shoe",
"timestamp": "2021-04-28T08:09:49",
"content": "That’s quite cool, how long before there’s an expansion HAT which breaks these out on headers via ribbon cables?Also, what’s with the custom CPU heat spreader?",
"parent_id": null,
"depth": 1,
"r... | 1,760,373,106.604036 | ||
https://hackaday.com/2021/04/27/boat-anchor-nixie-clock-plays-the-cold-warrior-role-convincingly/ | Boat Anchor Nixie Clock Plays The Cold Warrior Role Convincingly | Dan Maloney | [
"clock hacks",
"Retrocomputing"
] | [
"cold war",
"H-P",
"hewlett packard",
"IN-1",
"nixie",
"rubidium",
"test equipment"
] | The early Cold War years may have been suffused with existential dread thanks to the never-ending threat of nuclear obliteration, but at least it did have a great look. Think cars with a ton of chrome, sheet steel toys with razor-sharp edges, and pretty much the entire look of the
Fallout
franchise. And now you can add... | 13 | 12 | [
{
"comment_id": "6343871",
"author": "Canuckfire",
"timestamp": "2021-04-28T05:30:50",
"content": "This is a masterclass on enclosure design and finishing skills.Layout, labelling, the details on this are awesome for a project with this many details.Seriously good job to the creator of this, and now... | 1,760,373,106.931248 | ||
https://hackaday.com/2021/04/27/diy-grader-box-rocks-no-need-for-shocks/ | DIY Grader Box + Rocks = No Need For Shocks | Kristina Panos | [
"Misc Hacks"
] | [
"DIY grader box",
"grader box",
"oak",
"pallet wood"
] | Between the mini bike and the nearby woods, [HowToLou] has a lot for the rest of us to be envious of. Unfortunately, the terrain on the dirt path is too bumpy and uneven for a nice ride. But rather than spend hundreds to buy or rent an official grader box, [Lou] looked at his riding mower and said,
I can do that myself... | 17 | 11 | [
{
"comment_id": "6343844",
"author": "Ren",
"timestamp": "2021-04-28T02:45:22",
"content": "He didn’t ride the minibike over the same place of the trail in the “after” video, but about 2 feet to the side.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6343850"... | 1,760,373,106.980447 | ||
https://hackaday.com/2021/04/27/supersized-van-de-graaff-generator-packs-a-punch/ | Supersized Van De Graaff Generator Packs A Punch | Tom Nardi | [
"Science"
] | [
"high voltage",
"Plasma Channel",
"static electricity",
"van de graaff"
] | The Van de Graaff generator is a staple of science museums, to the point that even if the average person might not know its name, there’s an excellent chance they’ll be familiar with the “metal ball that makes your hair stand up” description. That’s partly because they’re a fairly safe way to show off high voltages, bu... | 19 | 9 | [
{
"comment_id": "6343814",
"author": "jibé",
"timestamp": "2021-04-27T23:28:57",
"content": "A little bit disappointed by the video background music, I was expecting something more Hamill-ish…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6343815",
"autho... | 1,760,373,106.798726 | ||
https://hackaday.com/2021/04/27/how-best-to-get-your-project-on-hackaday/ | How Best To Get Your Project On Hackaday | Lewin Day | [
"Ask Hackaday",
"Interest",
"Slider"
] | [
"article",
"articles",
"hackaday",
"presentation",
"presentation skills",
"project management"
] | We’re blessed to have such a great community at Hackaday. Our tipline often overfloweth with all manner of projects and builds of all stripes. We see it all here, from beginners just starting out with their first Arduino to diehard hackers executing daringly complex builds in their downtime, and everything in between.
... | 34 | 15 | [
{
"comment_id": "6343762",
"author": "J. Peterson",
"timestamp": "2021-04-27T20:11:20",
"content": "It’s funny, I’ve had simple projects I spent a few hours on (and even projects that didn’t work out) posted here.But a major 3D printing survey I spent years on wasn’t published.Check it out anyway:ht... | 1,760,373,106.88168 | ||
https://hackaday.com/2021/04/27/helicopter-is-full-of-compressed-air/ | Helicopter Is Full Of Compressed Air | Al Williams | [
"drone hacks"
] | [
"air turbine",
"helicopter",
"Schlieren",
"Schlieren photography"
] | [Tom] likes to build little helicopters and decided to build one that
runs on compressed air
. (Video, embedded below.) Turns out it was a little harder than he thought. Originally, he was trying for a compressed air quadcopter. He’d already worked with an air turbine, but putting on a vehicle that can lift itself into... | 14 | 6 | [
{
"comment_id": "6343748",
"author": "Fred",
"timestamp": "2021-04-27T18:55:45",
"content": "If you look at the energy density of compressed air vs pressure and then pressure vessel weight vs internal pressure for a given volume, you’ll see that this can only result in very small flight times, even ... | 1,760,373,107.033535 | ||
https://hackaday.com/2021/04/25/fertilizing-plants-with-a-custom-3d-printed-pump/ | Fertilizing Plants With A Custom 3D-Printed Pump | Bryan Cockfield | [
"News"
] | [
"3d printer",
"ESP32",
"esphome",
"fertilizer",
"growing",
"nutrient",
"peristaltic",
"plant",
"pump",
"soil"
] | For all but the most experienced gardeners and botanists, taking care of the soil around one’s plants can seem like an unsolvable mystery. Not only does soil need the correct amount of nutrients for plants to thrive, but it also needs a certain amount of moisture, correct pH, proper temperature, and a whole host of oth... | 20 | 6 | [
{
"comment_id": "6342953",
"author": "Exceptions are probably a bit more numerious than indicated.",
"timestamp": "2021-04-25T14:50:29",
"content": "[T]hat is completely 3D printed with the exception of the rollers and the screws that hold the assembly together and the electronics and the motor and ... | 1,760,373,107.090496 | ||
https://hackaday.com/2021/04/25/7000-rpm-on-a-3d-printed-gearbox/ | 7000 RPM On A 3D-Printed Gearbox | Chris Lott | [
"Tech Hacks"
] | [
"3D printed gears",
"gearbox",
"hand crank"
] | [Steven] at the
3D Printer Academy
has been working on a variety of different gear designs. He recently embarked on a
series of experiments
to see how fast he can spin a 3D-printed gearbox.
After testing several kinds of gear teeth, gear diameters, and gear spacing, he finally struck upon an 81:1 ratio gearbox. It has ... | 17 | 8 | [
{
"comment_id": "6343076",
"author": "Mr Name Required",
"timestamp": "2021-04-26T00:38:23",
"content": "I’m tryng to figure out the aim of this project, it seems somewhat pointless. Is it to (a) spin 3D-printed gears until they fly apart, or (b) that the friction becomes so high that it stalls the ... | 1,760,373,107.232304 | ||
https://hackaday.com/2021/04/25/ken-sherriff-picks-apart-mystery-chip-from-twitter-photo/ | [Ken Shirriff] Picks Apart Mystery Chip From Twitter Photo | Matthew Carlson | [
"hardware"
] | [
"chip decap",
"comparator",
"ic",
"ken shirriff",
"reverse engineer",
"reverse engineering"
] | It’s no secret that the work of [Ken Shirriff] graces the front pages of Hackaday quite frequently. He’s back again, this time
reverse engineering a comparator chip from a photo on Twitter
. The mysterious chip was decapped, photographed under a microscope, and subsequently
posted on the internet with an open call to f... | 24 | 9 | [
{
"comment_id": "6342888",
"author": "g",
"timestamp": "2021-04-25T08:17:51",
"content": "Sherriff? Just how much lower can HaD get? There’s no limit, is there?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6342891",
"author": "Gravis",
"tim... | 1,760,373,107.375727 | ||
https://hackaday.com/2021/04/24/was-novells-ne2000-really-that-bad/ | Was Novell’s NE2000 Really That Bad? | Jenny List | [
"Retrocomputing"
] | [
"isa",
"NE2000",
"network card"
] | If you used almost any form of networked PC in the late 1980s or the 1990s, the chances are that you will at some point have encountered the Novell NE2000 network card. This 16-bit ISA card became a
de facto
standard for 16-bit network cards, such that very few “NE2000” cards were the real thing. A host of clones fille... | 42 | 15 | [
{
"comment_id": "6342866",
"author": "aki009",
"timestamp": "2021-04-25T05:39:42",
"content": "I loved the NE2000 stuff way back then. As the article implies, if you chose your clone carefully, there was nothing wrong with the NE2000 clones. (Conversely, if you didn’t it’d not be a great experience.... | 1,760,373,107.453896 | ||
https://hackaday.com/2021/04/24/a-modern-mac-using-an-ancient-mac-display/ | A Modern Mac Using An Ancient Mac Display | Jenny List | [
"Retrocomputing"
] | [
"composite sync",
"crt",
"macOS"
] | If you own an Apple product you probably live in a world with a few proprietary interfaces, but by and large your displays and desktop peripherals will use familiar ports such as USB and DisplayPort. For the Mac owner of yore though it was a different matter, as [Dandu] is here to tell us with
the tale of a vintage App... | 8 | 5 | [
{
"comment_id": "6342864",
"author": "RÖB",
"timestamp": "2021-04-25T05:24:42",
"content": "From memory, just about everything (apart from the IBM PC) had composite (mixed) sync.I just had a quick brows at JAMMA arcade standard of that era, a number of “home” computer and of course any TV had combin... | 1,760,373,107.499414 | ||
https://hackaday.com/2021/04/24/virtual-reality-experiment-tricks-your-feet-into-walking-while-sitting-down/ | Virtual Reality Experiment Tricks Your Feet Into Walking While Sitting Down | Al Williams | [
"Virtual Reality"
] | [
"virtual reality",
"vr",
"walking"
] | The whole idea behind virtual reality is that you don’t really know what’s going on in the world around you. You only know what your senses tell you is there. If you can fake out your vision, for example, then your brain won’t realize you are floating in a tank providing power for the robot hordes. However, scientists ... | 3 | 1 | [
{
"comment_id": "6342827",
"author": "Cogidubnus Rex",
"timestamp": "2021-04-24T23:56:09",
"content": "This sort of thing was shown 10 years ago by a friend of mine. No VR or electrodes needed. I think the method was place the subject with a view of one of their hands and a dummy opposing hand. Stro... | 1,760,373,107.536211 | ||
https://hackaday.com/2021/04/24/clay-pot-mp3-player-whipped-up-with-the-freedom-k64f/ | Clay Pot MP3 Player Whipped Up With The Freedom-K64F | Lewin Day | [
"digital audio hacks",
"Misc Hacks"
] | [
"clay",
"clay pot",
"FRDM-K64F",
"mp3 player"
] | In the streaming era, few of us think about MP3s on a day to day basis anymore. Our music collection is managed by warring executives in streaming companies from far-off lands. However, for [vinod], they’re still useful —
seeing as he just built himself an MP3 player that fits in a clay pot
.
The build is based on the ... | 13 | 8 | [
{
"comment_id": "6342781",
"author": "Misterlaneous",
"timestamp": "2021-04-24T20:36:28",
"content": "My yard is largely clay, so as terraforming progresses, I’ve been doing experiments with using the dirt from the yard to make clay stepping stones. I guess I could do a writeup or something. 🤷♂️",... | 1,760,373,107.597189 |
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