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https://hackaday.com/2021/06/04/hacking-a-solar-inverter-rf-interface/ | Hacking A Solar Inverter RF Interface | Danie Conradie | [
"Wireless Hacks"
] | [
"2.4ghz",
"RF",
"security",
"telemetry",
"uart"
] | One of the main advantages of cheap wireless modules is that they get used in consumer electronics, so if you know what’s being used you can build your own compatible hardware. While investigating the RF interface used in a series of cheap “smart” solar inverters [Aaron Christophel], created an
Arduino library to recei... | 4 | 3 | [
{
"comment_id": "6354324",
"author": "dingodreams",
"timestamp": "2021-06-06T12:45:01",
"content": "Hi, nice job. Can I ask what the brand and model of micro inverter you are using?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6354994",
"author": "... | 1,760,373,064.661116 | ||
https://hackaday.com/2021/06/04/riding-mower-repair-uncovers-miniature-culprit/ | Riding Mower Repair Uncovers Miniature Culprit | Tom Nardi | [
"Repair Hacks"
] | [
"lawn mower",
"limit switch",
"linear actuator",
"microswitch",
"repair",
"right to repair",
"tractor"
] | Most people would be pretty upset it the lawn mower they spent $4,000 USD on had a major failure within the first year of owning it. But for [xxbiohazrdxx], it was an excuse to take a peek under the hood and
figure out what brought down this state-of-the-art piece of landscaping gear
.
It should be said that, at least ... | 62 | 24 | [
{
"comment_id": "6353984",
"author": "Phil",
"timestamp": "2021-06-04T20:27:28",
"content": "Best article ever. Anyone seen a good film recently?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353992",
"author": "zvanstefan",
"timestamp": "... | 1,760,373,065.045118 | ||
https://hackaday.com/2021/06/04/home-automation-controller-uses-chalk/ | Home Automation Controller Uses Chalk | Chris Lott | [
"home hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"Chalk board",
"display technology",
"home automation"
] | Responding to the
Rethink Displays
challenge of the
2021 Hackaday Prize contest
, freelance design engineer [Rick Pannen] brings a retro look to
his DIY home automation controller
. You could be forgiven for not even realizing it is a controller at first glance. [Rick] built this using a magnetic chalk board and instal... | 10 | 4 | [
{
"comment_id": "6353964",
"author": "CRJEEA",
"timestamp": "2021-06-04T18:38:28",
"content": "It could be interesting to have a camera pointed at a blackboard and you draw what you want to do and let object recognition change the settings accordingly.",
"parent_id": null,
"depth": 1,
"r... | 1,760,373,064.944867 | ||
https://hackaday.com/2021/06/04/shakealert-promises-earthquake-early-warning-of-about-10-seconds/ | ShakeAlert Promises Earthquake Early Warning Of About 10 Seconds | Lewin Day | [
"Featured",
"Interest",
"Misc Hacks"
] | [
"disaster",
"earthquake",
"earthquake warning system",
"earthquakes",
"natural disaster"
] | Earthquakes are highly destructive when they strike, and unlike many other natural disasters, they often hit with minimal warning. Unlike hurricanes and floods, and even volcanoes to an extent, earthquakes can be very difficult to predict. However, in recent decades, warning networks have proliferated around the world,... | 15 | 8 | [
{
"comment_id": "6353948",
"author": "chris",
"timestamp": "2021-06-04T17:26:38",
"content": "I wonder if our alert system is up to the task. My wife and I often observe that one of us will get an amber alert message on one phone, and then hours or most of a day later the other will get it. Not sur... | 1,760,373,065.310013 | ||
https://hackaday.com/2021/06/04/hackaday-podcast-121-crazy-bikes-diy-flip-dots-ev-mountain-climbing-and-trippy-tripterons/ | Hackaday Podcast 121: Crazy Bikes, DIY Flip Dots, EV Mountain Climbing, And Trippy Tripterons | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Mike Szczys and Elliot Williams discuss a great week of hardware hacks. Two delightful mechanical hacks focus on bicycles: one that puts a differential on the front fork, and the other a flywheel between the knees. Elliot was finally impressed by something involving AI — a machine-learning guitar pedal... | 3 | 2 | [
{
"comment_id": "6354002",
"author": "Dude",
"timestamp": "2021-06-04T21:39:29",
"content": "You got the hillclimb problem slightly wrong: electric cars are generally limited in their power to weight ratio and actually lose in that regard to ICE vehicles – where they gain is putting that power down... | 1,760,373,064.753525 | ||
https://hackaday.com/2021/06/04/give-3d-printed-plastic-a-well-worn-metal-look/ | Give 3D Printed Plastic A Well-Worn Metal Look | Roger Cheng | [
"3d Printer hacks"
] | [
"3d printed",
"how-to",
"post-processing",
"print finishing",
"print smoothing",
"sanding",
"smoothing parts"
] | Affordable 3D printers let us turn ideas into physical reality without a big expensive workshop, but with their power came some disadvantages. The nature of FDM printers impart layer lines and nozzle ridges in the parts they produce. They can be minimized with optimized print settings, but never eliminated. [Emily Vela... | 13 | 5 | [
{
"comment_id": "6353928",
"author": "Eric Cherry",
"timestamp": "2021-06-04T15:34:01",
"content": "I recommend using toothpaste instead of petroleum jelly. Does the same job and washes off a whole lot easier!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,064.857798 | ||
https://hackaday.com/2021/06/04/this-week-in-security-ransomware-welock-and-amazon-arbitration/ | This Week In Security: Ransomware, WeLock, And Amazon Arbitration | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"Amazon Echo",
"This Week in Security"
] | Another week of ransomware, and this time it’s the beef market that’s been shut down, due to a crippling infrastructure attack out of Russia — but hold up, it’s not that simple. Let’s cover the facts. Some time on Sunday, May 30,
JBS USA discovered a ransomware attack
against their systems. It seems that their response... | 9 | 2 | [
{
"comment_id": "6353970",
"author": "Mike",
"timestamp": "2021-06-04T19:01:24",
"content": "The real problem lies with coders these days. They focus to much on getting the task complete rather than thinking outside the box and checking for things that should never be done. For example, writing code... | 1,760,373,064.807239 | ||
https://hackaday.com/2021/06/04/soldering-iron-plus-camera-gimbal-helps-cancel-out-hackers-hand-tremors/ | Soldering Iron Plus Camera Gimbal Helps Cancel Out Hacker’s Hand Tremors | Donald Papp | [
"handhelds hacks",
"Tool Hacks"
] | [
"assistive",
"gimbal",
"soldering iron",
"stabilizer",
"tremors"
] | Soldering requires steady hands, so when [Jonathan Gleich] sadly developed a condition called an
essential tremor
affecting his hands, soldering became much more difficult. But one day, while [Jonathan] was chatting with a friend, they were visited by the Good Ideas Fairy and in true hacker fashion, he ended up
repurpo... | 39 | 14 | [
{
"comment_id": "6353887",
"author": "Foldi-One",
"timestamp": "2021-06-04T11:46:14",
"content": "Would have thought the extra weight and distance from the wrist would make it harder to manage – I’d have been thinking something that looks more like a delta printer for the motion control – you still ... | 1,760,373,065.252397 | ||
https://hackaday.com/2021/06/04/an-exercise-in-firmware-dumping-with-the-greatfet/ | An Exercise In Firmware Dumping With The GreatFET | Tom Nardi | [
"Peripherals Hacks",
"Tool Hacks"
] | [
"firmware dump",
"GreatFET",
"logitech",
"NRF24LE1",
"python",
"reverse engineering"
] | Looking to hone his hardware hacking skills, [James Chambers] recently set out to reverse engineer a common cheap wireless keyboard: the Logitech K360. The chipset it uses has already been fairly well explored (and exploited) by security researchers, but the goal here was more about gaining some practical hands-on expe... | 4 | 3 | [
{
"comment_id": "6353874",
"author": "mime",
"timestamp": "2021-06-04T08:34:50",
"content": "that’s going on my watch list! More of this please.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353920",
"author": "none",
"timestamp": "2021-06-04T14:55:1... | 1,760,373,064.712284 | ||
https://hackaday.com/2021/06/03/lamp-sheds-light-on-air-quality/ | Lamp Sheds Light On Air Quality | Kristina Panos | [
"Raspberry Pi"
] | [
"air quality",
"particulate matter",
"particulates",
"pm10",
"pm2.5",
"raspberry pi",
"Raspberry Pi Zero W"
] | It can be difficult to appreciate when the air quality is decent and when it’s poor, unless conditions are so bad that you can literally see the smog hanging in the air. Rather than try to digest a bunch of air quality numbers, [guillaume_slizewicz] built Canari —
a lovely lamp that sheds light on the air pollution pro... | 4 | 3 | [
{
"comment_id": "6353853",
"author": "ROB",
"timestamp": "2021-06-04T06:49:05",
"content": "Hi, please step into this room. The air is 100% carbon monoxide but as it has no particles of PM2.5 or above, it has a high “air quality”.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,064.89693 | ||
https://hackaday.com/2021/06/03/gdbdiff-diff-ing-a-real-rp2040-mcu-against-an-emulated-mcu/ | Gdbdiff: Diff-ing A Real RP2040 MCU Against An Emulated MCU | Maya Posch | [
"Microcontrollers"
] | [
"emulator",
"gdb",
"gdbdiff",
"rp2040"
] | What to do when developing an RP2040 emulator but validating the emulator instruction by instruction is a slow and tedious process? Why, automatically compare it against the real hardware if you’re [Uri Shaked], of course. This is the purpose of
gdbdiff
. This project uses the GDB remote serial protocol via OpenOCD to ... | 15 | 4 | [
{
"comment_id": "6353814",
"author": "Mike",
"timestamp": "2021-06-04T03:20:14",
"content": "Why would anyone need an emulator for a product that costs $5.00 ? Just buy the dam thing and try it for real.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "635383... | 1,760,373,065.359945 | ||
https://hackaday.com/2021/06/03/radio-build-goes-outside-the-box/ | Radio Build Goes Outside The Box | Bryan Cockfield | [
"Radio Hacks"
] | [
"art",
"chaos",
"enclosure",
"maple",
"radio",
"receiver",
"SI4732",
"stm32"
] | It’s easy to get caught up in a build and forget that the final version usually needs some sort of enclosure, especially things with sensitive electronics in them. The [Director of Legal Evil] at the LVL1 Louisville Hackerspace notes as much in his recent radio build. It seems as though the case was indeed an afterthou... | 4 | 2 | [
{
"comment_id": "6353798",
"author": "Jon",
"timestamp": "2021-06-04T00:58:16",
"content": "It’s more of an exclosure then?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353808",
"author": "Queeg",
"timestamp": "2021-06-04T01:47:04",
... | 1,760,373,065.402671 | ||
https://hackaday.com/2021/06/03/air-extractor-automatically-gives-ac-a-boost/ | Air Extractor Automatically Gives AC A Boost | Stephen Ogier | [
"Arduino Hacks"
] | [
"air conditioning",
"arduino nano",
"attiny85",
"current sensing",
"fan",
"hvac"
] | Portable air conditioning units are a great way to cool off a space during the hot summer months, but they require some place to blow the heat they’ve removed from your room. [VincentMakes] got a portable AC unit for his home, but he found that the place he wanted to put it was too far from the only window he could use... | 39 | 11 | [
{
"comment_id": "6353737",
"author": "punkdigerati",
"timestamp": "2021-06-03T20:18:08",
"content": "I’ll just leave this herehttps://youtu.be/_-mBeYC2KGc",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353782",
"author": "Stevebn",
"timestam... | 1,760,373,065.479533 | ||
https://hackaday.com/2021/06/03/miss-the-predictive-text-from-your-old-nokia-build-your-own-t9-keypad/ | Miss The Predictive Text From Your Old Nokia? Build Your Own T9 Keypad | Danie Conradie | [
"Peripherals Hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"keyboard",
"keypad",
"numpad",
"predictive text"
] | Do you miss the mind-blowing typing speed of your old Nokia brick with predictive text turned on? Well, so did [Guy Dupont], so he created a
USB keypad with T9 predictive text built-in
to turn typing into a one-handed affair. Video after the break.
T9 was the first predictive text technology to gain widespread use in t... | 23 | 8 | [
{
"comment_id": "6353714",
"author": "rok",
"timestamp": "2021-06-03T19:20:43",
"content": "Soon the script kiddies will need one core per key.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353731",
"author": "Vinny",
"timestamp": "2021-06-... | 1,760,373,065.634679 | ||
https://hackaday.com/2021/06/03/how-to-get-into-cars-ice-racing-mods/ | How To Get Into Cars: Ice Racing Mods | Lewin Day | [
"car hacks",
"Hackaday Columns"
] | [
"car hacks",
"cars",
"ice",
"ice racing",
"snow"
] | Typically, when it comes to inclement weather, ice is the worst of the worst of driving conditions. Regular tyres have little to no grip in such situations, and accidents are common. However, some choose to laugh at such challenges, and take to racing out on frozen lakes and rivers. The sport of ice racing can be a dem... | 6 | 4 | [
{
"comment_id": "6353706",
"author": "Piotrsko",
"timestamp": "2021-06-03T18:16:25",
"content": "The most fun you could ever have in your winter car on the St. Claire river and 4 55 gallon drums to mark the course.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id":... | 1,760,373,065.529111 | ||
https://hackaday.com/2021/06/03/retro-useless-clock-eventually-shows-you-the-time/ | Retro Useless Clock Eventually Shows You The Time | Kristina Panos | [
"clock hacks"
] | [
"clock",
"doomsday clock",
"ESP32",
"QR clock",
"qr code",
"useless machine"
] | It’s true; hackers like clocks. And hackers like useless machines. But would they like an intersection of the two? We’re thinking yes, probably, though
we would argue that this QR clock was at no point fully useless
. Yes, a QR clock as in, whip out your phone and, ignoring the conveniently-available phone time, open t... | 8 | 4 | [
{
"comment_id": "6353691",
"author": "Pinhead",
"timestamp": "2021-06-03T17:09:52",
"content": "Fail ! It doesn’t show the correct time.Where I live, it is now 19:08, but that clock stubbornly displays 17:54….What time zone is this ???",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,065.573874 | ||
https://hackaday.com/2021/06/03/mariner-4-our-first-up-close-look-at-mars/ | Mariner 4: Our First Up-Close Look At Mars | Dan Maloney | [
"Featured",
"History",
"Slider",
"Space"
] | [
"Mariner 4",
"nasa",
"photography",
"space probes"
] | In the grand scheme of things, it wasn’t all that long ago that the entire body of knowledge of our solar system was built solely with Earth-based observations. Turning first their naked eyes to the heavens, and then a succession of increasingly complex and sensitive optical and radio telescopes gathering light from al... | 51 | 12 | [
{
"comment_id": "6353653",
"author": "Rok",
"timestamp": "2021-06-03T14:07:16",
"content": "Another article about Mars (seen from USA) and still nothing about the Chinese rover Zhurong successful Mars landing ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "... | 1,760,373,065.732971 | ||
https://hackaday.com/2021/06/03/auto-aiming-nerf-gun-to-give-you-the-edge-in-battle/ | Auto-Aiming Nerf Gun To Give You The Edge In Battle | Danie Conradie | [
"Toy Hacks",
"Weapons Hacks"
] | [
"3dprintedlife",
"nerf",
"opencv",
"steppers",
"turret"
] | Ever wished for some robotic enhancements for your next nerf war? Well, it’s time to dig through the parts bin and build yourself a
nerf gun with aimbot built right in
, courtesy of [3Dprintedlife]. (Video, embedded below.)
The gun started with a design borrowed from
[Captain Slug]’s awesome catalog of open source nerf... | 13 | 4 | [
{
"comment_id": "6353636",
"author": "Ren",
"timestamp": "2021-06-03T13:10:01",
"content": "…because Googly eyes makes even killing your opponent better!B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353637",
"author": "RubyPanther",
"timestamp": ... | 1,760,373,065.932032 | ||
https://hackaday.com/2021/06/03/adding-a-laser-blaster-to-classic-atari-2600-games-with-machine-vision/ | Adding A Laser Blaster To Classic Atari 2600 Games With Machine Vision | Dan Maloney | [
"Games"
] | [
"atari 2600",
"blaster",
"laser",
"machine vision",
"opencv",
"pistol",
"Xavier"
] | Remember the pistol controller for the original Atari 2600? No? Perhaps that’s because it never existed. But now that we’re living in the future,
adding a pistol to the classic games of the 2600
is actually possible.
Possible, but not exactly easy. [Nick Bild]’s approach to the problem is based on machine vision, using... | 5 | 5 | [
{
"comment_id": "6353619",
"author": "Andrew",
"timestamp": "2021-06-03T08:34:06",
"content": "Is this Nick Bild-a-day?Not that I mind. It’s interesting to see what he has been bilding.I’ll get my coat.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353638",
... | 1,760,373,065.869669 | ||
https://hackaday.com/2021/06/02/commodore-inspired-watch-puts-basic-on-your-wrist/ | Commodore Inspired Watch Puts BASIC On Your Wrist | Tom Nardi | [
"Software Hacks",
"Wearable Hacks"
] | [
"basic",
"commodore 64",
"firmware",
"Lilygo",
"smart watch"
] | Ask a smart watch owner what their favorite wrist-mounted feature is, and they might say it’s having all their daily information available at a glance, or the ease with which they’re able to communicate with friends and family. If they
don’t
mention knocking out a few lines in their wearable BASIC interpreter, then you... | 2 | 2 | [
{
"comment_id": "6353734",
"author": "Hirudinea",
"timestamp": "2021-06-03T20:12:27",
"content": "If he really wants to impress people he should load programs off a 1541! But really I can’t wait to see it run C64 games.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment... | 1,760,373,065.826552 | ||
https://hackaday.com/2021/06/02/optical-microscope-resolves-down-to-40-nanometers/ | Optical Microscope Resolves Down To 40 Nanometers | Al Williams | [
"Science"
] | [
"Metamaterial",
"metamaterials",
"microscope",
"microscopy"
] | Optical microscopes depend on light, of course, but they are also limited by that same light. Typically, anything under 200 nanometers just blurs together because of the wavelength of the light being used to observe it. However, engineers at the University of California San Diego have published their results using
a hy... | 12 | 2 | [
{
"comment_id": "6353606",
"author": "CRJEEA",
"timestamp": "2021-06-03T07:13:21",
"content": "I know this was pretty old news, but seeing it again gets me thinking about it. Perhaps it might be possible to obtain an even greater resolution. If a material could be created that had relatively long po... | 1,760,373,065.984181 | ||
https://hackaday.com/2021/06/02/trials-begin-for-lozenge-that-rebuilds-tooth-enamel/ | Trials Begin For Lozenge That Rebuilds Tooth Enamel | Kristina Panos | [
"chemistry hacks",
"Medical Hacks"
] | [
"nano-hydroxyapatite",
"peptide",
"tooth enamel",
"toothpaste"
] | For all the cool regenerative tricks the human body can do, it’s kind of weird that we only have one shot at tooth enamel with no way to get it back. That may be about to change, as researchers at the University of Washington have developed
a lozenge that rebuilds this precious protective coating a few microns at a tim... | 48 | 11 | [
{
"comment_id": "6353550",
"author": "Inhibit",
"timestamp": "2021-06-02T23:24:05",
"content": "I always thought it was weird that the answer to a hole in a tooth is to remove even more irreplaceable tooth. I’m glad to see some incentive to remedy that.",
"parent_id": null,
"depth": 1,
"... | 1,760,373,066.087436 | ||
https://hackaday.com/2021/06/02/arduino-variometer-in-a-mint-tin/ | Arduino Variometer In A Mint Tin | Tom Nardi | [
"Arduino Hacks"
] | [
"altitude",
"arduino nano",
"BMP180",
"pressure sensor",
"variometer"
] | While humans have done a pretty good job of figuring out how to fly with various mechanical contrivances, the fact remains that our natural senses aren’t really well suited to being off the ground. For example, unless you have a visual reference point, determining which way is up is quite a bit harder than you might th... | 20 | 5 | [
{
"comment_id": "6353521",
"author": "Neolker",
"timestamp": "2021-06-02T21:08:21",
"content": "Remember me laggy variometers 7 years ago. These days everyone use accelerometr for instant respons and high resolution up to 10 cm otherwise it is useless for flying on paraglider with long delay and res... | 1,760,373,066.16783 | ||
https://hackaday.com/2021/06/02/make-your-desoldering-easier-by-minding-your-own-bismuth/ | Make Your Desoldering Easier By Minding Your Own Bismuth | Dan Maloney | [
"Tool Hacks"
] | [
"bismuth",
"braid",
"desolder",
"eutectic",
"lead",
"phase diagram",
"solder",
"tin"
] | Any video that starts with a phase diagram has instantly earned our attention. Admittedly, we have a pretty low bar for that kind of stuff, but eye candy aside, [Robin Debreuil]’s
quick outline of his technique for desoldering with the help of bismuth
is worth watching.
Aside from its use in those
pink gloopy solutions... | 30 | 11 | [
{
"comment_id": "6353502",
"author": "Shirley Marquez",
"timestamp": "2021-06-02T18:53:56",
"content": "One caution: it works perhaps too well for solder with lead. The melting point of a tin-lead-bismuth alloy can drop well below 100C; low enough that operating temperatures in some circuits will ca... | 1,760,373,066.480997 | ||
https://hackaday.com/2021/06/02/know-audio-start-at-the-very-beginning/ | Know Audio: Start At The Very Beginning | Jenny List | [
"Featured",
"home entertainment hacks",
"Interest",
"Original Art",
"Slider"
] | [
"audio",
"ears",
"hearing",
"hi-fi"
] | A lot of our projects make noise. It can be something as simple as a microcontroller driving a small speaker or a truly ambitious Hi-Fi project, but common to all of them is the desire to get that sound out in as audible and high-quality a manner as possible. We’ve been known to make fun of the more preposterous side o... | 21 | 11 | [
{
"comment_id": "6353477",
"author": "SPD",
"timestamp": "2021-06-02T17:17:27",
"content": "Question is that graph for both ears? Have you thought about doing the ears separate?I had a ear infection in one ear, and my I can’t hear high freq in that ear well. The differenceis quite stark.",
"pare... | 1,760,373,066.332759 | ||
https://hackaday.com/2021/06/02/full-size-3d-printed-wind-turbine/ | Full Size 3D-Printed Wind Turbine | Bryan Cockfield | [
"3d Printer hacks",
"green hacks"
] | [
"3d printer",
"blade",
"energy",
"generator",
"qblade",
"sla",
"turbine",
"wind",
"yblade"
] | Wind energy isn’t quite as common of an alternative energy source as solar, at least for small installations. It’s usually much easier just to throw a few panels and a battery together than it is to have a working turbine with many moving parts that need to be maintained when only a small amount of power is needed. How... | 29 | 6 | [
{
"comment_id": "6353461",
"author": "Paul LeBlanc",
"timestamp": "2021-06-02T16:14:41",
"content": ">> if you find yourself where the wind blows but the sun don’t shineOK, I’m pretty sure there’s a joke in there somewhere…",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,373,066.545615 | ||
https://hackaday.com/2021/06/02/fueling-up-for-fusion-masts-super-x-jets-deuterium-tritium-experiments-for-iter-and-more/ | Fueling Up For Fusion: MAST’s Super-X, JET’s Deuterium-Tritium Experiments For ITER, And More | Maya Posch | [
"Current Events",
"Featured",
"News",
"Science",
"Slider"
] | [
"fusion",
"ITER",
"jet",
"mast",
"nuclear fusion",
"plasma physics",
"wendelstein 7-x"
] | We’ve had nuclear fission reactors in operation all over the world for ages, but nuclear fusion always seems to be a decade or two away. While one cannot predict when we’ll reach the goal of sustained nuclear fusion, the cutting edge in test hardware is advancing at a rapid pace that makes us optimistic. Beginning as s... | 38 | 6 | [
{
"comment_id": "6353441",
"author": "abjq",
"timestamp": "2021-06-02T14:43:27",
"content": "“fusion has obviously remained limited to stars”Err, and hydrogen bombs?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353447",
"author": "PeaceFox",
... | 1,760,373,066.414912 | ||
https://hackaday.com/2021/06/02/how-to-run-a-first-generation-cell-phone-network/ | How To Run A First-Generation Cell Phone Network | Zach Zeman | [
"Phone Hacks",
"Radio Hacks"
] | [
"cellular network",
"cellular phone",
"LimeSDR",
"osmocom",
"retrotech",
"sdr",
"usrp"
] | Retro tech is cool. Retro tech that works is even cooler. When we can see technology working, hold it in our hand, and use it as though we’ve been transported back in time; that’s when we feel truly connected to history. To help others create small time anomalies of their own, [Dmitrii Eliuseev] put together
a quick ho... | 21 | 11 | [
{
"comment_id": "6353417",
"author": "Joseph Eoff",
"timestamp": "2021-06-02T12:31:03",
"content": "Quote:“primarily that anyone with a scanner and the right know-how could tune to the analog voice frequencies and eavesdrop on conversations.”That was the reason that a particular company made a scram... | 1,760,373,066.719157 | ||
https://hackaday.com/2021/06/02/diy-usb-microphone-seems-overkill-is-surprisingly-in-depth/ | DIY USB Microphone Seems Overkill; Is Surprisingly In-Depth | Erin Pinheiro | [
"digital audio hacks"
] | [
"digital microphone",
"diy",
"MEMS microphones",
"microphone",
"stm32",
"STM32F4",
"work from home"
] | Those of us who have been working from home through video calls for the past year can attest to the rising demand for conferencing gear such as webcams and microphones. Not wanting to spring for a boring off-the-shelf solution, serial hacker [Andy Brown] decided to
design his own USB solution from scratch and show us t... | 4 | 4 | [
{
"comment_id": "6353429",
"author": "jwrm22",
"timestamp": "2021-06-02T13:12:38",
"content": "Very cool project. I can imagine him in a call with his bad quality audio, signing off, building the module, signing back in a month later, and asking ‘can you hear me now?’.I like it how accessible it has... | 1,760,373,066.586705 | ||
https://hackaday.com/2021/05/31/tiny-gasoline-engine-fitted-with-a-custom-billet-waterpump/ | Tiny Gasoline Engine Fitted With A Custom Billet Waterpump | Lewin Day | [
"Engine Hacks"
] | [
"johnnyq90",
"machining",
"pump"
] | We don’t typically use gasoline engines smaller than 50 cc or so on a regular basis. Below that size, electric motors are typically less messy and more capable of doing the job. That doesn’t mean they aren’t cute, however. [JohnnyQ90] is a fan of tiny internal combustion engines,
and decided to whip up a little water p... | 31 | 10 | [
{
"comment_id": "6353068",
"author": "macona",
"timestamp": "2021-05-31T17:54:30",
"content": "No, its made from bar stock, billets never leave the foundry. /rant",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353070",
"author": "Hirudinea",
... | 1,760,373,066.655832 | ||
https://hackaday.com/2021/05/31/a-look-back-on-the-oroville-dam-with-practical-engineering/ | A Look Back On The Oroville Dam With Practical Engineering | Jonathan Bennett | [
"Misc Hacks"
] | [
"Oroville Dam",
"Practical Engineering"
] | Back when it first happened, we covered
the Oroville Dam near-disaster
. Heavier-than-expected rainfall in California back in early 2017 led to running the dam’s primary spillway at much higher-than-normal levels. February 17, 2017, the operators noticed something odd about the water flow down the spillway, and when th... | 10 | 8 | [
{
"comment_id": "6353038",
"author": "Doc Searls",
"timestamp": "2021-05-31T14:45:41",
"content": "I just finished reading Floodpath, by John Wilkman. It’s a very comprehensive history of the St. Francis Dam disaster, which in lives lost was the second largest in California history. Highly recommend... | 1,760,373,066.766494 | ||
https://hackaday.com/2021/05/31/thin-coatings-require-an-impressive-collection-of-equipment-and-know-how/ | Thin Coatings Require An Impressive Collection Of Equipment And Know-How | Dan Maloney | [
"chemistry hacks",
"Misc Hacks"
] | [
"anti-reflective",
"coating",
"optics",
"physical vapor deposition",
"PVD",
"reflective",
"silver",
"Thermal",
"vacuum"
] | Let’s be honest — not too many of us have a need to deposit nanometer-thick films onto substrates in a controlled manner. But if you do find yourself in such a situation, you could do worse than following [Jeroen Vleggaar]’s lead as he builds out
a physical vapor deposition apparatus
to do just that.
Thankfully, [Jeroe... | 15 | 4 | [
{
"comment_id": "6353006",
"author": "daveboltman",
"timestamp": "2021-05-31T11:48:51",
"content": "Could be useful for those that grind their own telescope mirrors, too.An old friend in another city which whom I’ve lost touch, ground a 14″ mirror out of Pyrex glass, and sent it to some company to h... | 1,760,373,066.876896 | ||
https://hackaday.com/2021/05/31/a-chainsaw-gives-this-winch-some-grunt/ | A Chainsaw Gives This Winch Some Grunt | Jenny List | [
"Tool Hacks"
] | [
"chainsaw",
"machining",
"winch"
] | For a satisfying Youtube watching session there is noting like some quality machine shop work, and that’s exactly what [Made In Poland] supply with
their conversion of a small 12V winch to power from a chainsaw
. The finished product contains not much more than the gearbox and shaft components from the original, but th... | 11 | 7 | [
{
"comment_id": "6352986",
"author": "Merlin",
"timestamp": "2021-05-31T08:27:23",
"content": "‘made in Poland’ – not ‘mad in Poland’.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352995",
"author": "yetihehe",
"timestamp": "2021-05-31T09:... | 1,760,373,066.826627 | ||
https://hackaday.com/2021/05/30/smartphone-app-for-leftover-vaccinations/ | Smartphone App For Leftover Vaccinations | Chris Lott | [
"News"
] | [
"Covid-19",
"public health",
"smartphones",
"vaccination"
] | South Korea’s Disease Control and Prevention Agency
launched a pilot program yesterday
to minimize vaccination waste using a nationwide smartphone app. People who are over 30 years of age can search for leftover doses on their smartphones. If any are available, they can book an appointment immediately within the app, a... | 29 | 12 | [
{
"comment_id": "6352948",
"author": "e",
"timestamp": "2021-05-31T05:24:38",
"content": "The Australian federal government has cleverly avoided the issue of wasted doses by being a bit slow to deliver sufficient quantities of vaccine to date in their rollout.They have been able to get away with thi... | 1,760,373,067.770792 | ||
https://hackaday.com/2021/05/30/better-solvents-could-lead-to-cleaner-greener-perovskite-solar-cells/ | Better Solvents Could Lead To Cleaner, Greener Perovskite Solar Cells | Dan Maloney | [
"News"
] | [
"DMF",
"GBL",
"GHB< GVL",
"organic",
"perovskites",
"photovoltaic",
"solar",
"Solvent",
"toxix"
] | Regardless of appearances, almost all scientific progress comes at a price. That which is hailed as a breakthrough technology that will save the planet or improve the lots of those living upon it almost always comes at a cost, which sometimes greatly outweighs the purported benefits of the advancement.
Luckily, though,... | 18 | 5 | [
{
"comment_id": "6352932",
"author": "PWalsh",
"timestamp": "2021-05-31T04:02:47",
"content": "> Regardless of appearances, almost all scientific progress comes at a price.The LHC was almost free to construct.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6... | 1,760,373,067.072008 | ||
https://hackaday.com/2021/05/30/hackaday-links-may-30-2021/ | Hackaday Links: May 30, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"anomaly",
"bipedal",
"bitcoin",
"cryptocurrency",
"Ethereum",
"hackaday links",
"Ingenuity",
"led",
"liquid nitrogen",
"mars",
"mining",
"NVIDIA",
"quantum mechanics",
"robot",
"stairs",
"uav"
] | That collective “Phew!” you heard this week was probably everyone on the Mars Ingenuity helicopter team letting out a sigh of relief while watching telemetry from
the sixth and somewhat shaky flight
of the UAV above Jezero crater. With Ingenuity now in
an “operations demonstration” phase
, the sixth flight was to stret... | 19 | 9 | [
{
"comment_id": "6352912",
"author": "Comedicles",
"timestamp": "2021-05-31T00:41:34",
"content": "Yellow LEDs turn green in LN2? Did you watch the video?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352931",
"author": "PWalsh",
"timestamp... | 1,760,373,067.184803 | ||
https://hackaday.com/2021/06/01/virgin-galactics-long-road-to-commercial-spaceflight/ | Virgin Galactic’s Long Road To Commercial Spaceflight | Tom Nardi | [
"Current Events",
"Featured",
"Slider",
"Space"
] | [
"commercial space",
"reusable",
"rocket engine",
"space tourism",
"spaceplane",
"suborbital",
"Virgin Galactic"
] | To hear founder Richard Branson tell it, the first operational flight of Virgin Galactic’s SpaceShipTwo has been 18 months out since at least 2008. But a series of delays, technical glitches, and several tragic accidents have continually pushed the date back to the point that many have wondered if it will ever happen a... | 24 | 8 | [
{
"comment_id": "6353222",
"author": "Grawp",
"timestamp": "2021-06-01T14:26:29",
"content": "IMO this should NOT be called spaceflight when it’s suborbital. It does not do justice to “real” (orbital) spacecrafts and is very misleading to general public (portion of which is already dumb enough to th... | 1,760,373,067.419838 | ||
https://hackaday.com/2021/06/01/not-all-spacex-software-goes-to-space/ | Not All SpaceX Software Goes To Space | Roger Cheng | [
"Software Development",
"Space"
] | [
"Crew Dragon",
"dragon",
"factory",
"Falcon 9",
"Software Engineering",
"Space Software",
"SpaceX",
"Starlink",
"starship"
] | SpaceX has always been willing to break from aerospace tradition if they feel there’s a more pragmatic solution. Today this is most visible in their use of standard construction equipment like cranes in their Starship development facility. But the same focus on problem solving can also be found in their software parts ... | 13 | 4 | [
{
"comment_id": "6353201",
"author": "Mbc",
"timestamp": "2021-06-01T11:40:00",
"content": "I wish that there was more like this, a focus on the people doing amazing things at SpaceX rather than Musk. Nothing against him, but it would be great if he stepped back and let the spotlight shine on the a... | 1,760,373,067.231667 | ||
https://hackaday.com/2021/06/01/new-part-day-rp2040-chips-in-single-unit-quantities/ | New Part Day: RP2040 Chips In Single Unit Quantities | Jenny List | [
"Microcontrollers",
"News",
"Parts",
"Raspberry Pi"
] | [
"Paspberry Pi Pico",
"raspberry pi",
"rp2040"
] | Since the launch of the
Raspberry Pi Pico
back in January the little board with its newly-designed RP2040 microcontroller has really caught the imagination of makers everywhere, and we have seen an extremely impressive array of projects using it. So far the RP2040 has only been available on a ready-made PCB module, but... | 27 | 13 | [
{
"comment_id": "6353166",
"author": "yetihehe",
"timestamp": "2021-06-01T07:14:54",
"content": "Shouldn’t that link be “two pio programmable state machines”? Or did they made a new version?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353173",
"a... | 1,760,373,067.304079 | ||
https://hackaday.com/2021/05/31/teaching-a-machine-to-be-worse-at-a-video-game-than-you-are/ | Teaching A Machine To Be Worse At A Video Game Than You Are | Dan Maloney | [
"Games",
"Machine Learning"
] | [
"fps",
"hdmi",
"machine learning",
"opencv",
"RF",
"usb",
"USB dongle",
"Valorant",
"video capture",
"wireless",
"YOLO"
] | Is it really cheating if the aimbot you’ve built plays the game worse than you do?
We vote no, and while we take a dim view on cheating in general, there are still some interesting hacks in
this AI-powered bot for
Valorant
. This is a first-person shooter, team-based game that has a lot of action and a
Counter-Strike
v... | 6 | 3 | [
{
"comment_id": "6353165",
"author": "starhawk",
"timestamp": "2021-06-01T06:58:33",
"content": "LOL @ ‘former’/’latter’ flip.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353212",
"author": "DainBramage",
"timestamp": "2021-06-01T12:41:26",
"co... | 1,760,373,067.602364 | ||
https://hackaday.com/2021/05/31/building-fallouts-super-sledge/ | Building Fallout’s Super Sledge | Lewin Day | [
"Misc Hacks"
] | [
"fire",
"propane",
"sledgehammer"
] | The Fallout series of games has a variety of ridiculous weapons, not least the Super Sledge — a rocket propelled sledgehammer that looks about as dangerous for the wielder as it does for the opponent. [JAIRUS OF ALL] decided he had to recreate this build in real life, risks be damned.
Unwilling to go the single-use, so... | 7 | 3 | [
{
"comment_id": "6353151",
"author": "DrewTheMachinist",
"timestamp": "2021-06-01T04:16:56",
"content": "I’ve seen it in person several years ago. It was very cool, but…underwhelming. It did not actually add any to the swing of the hammer. It definitely had intimidation factor though.",
"parent_... | 1,760,373,067.560522 | ||
https://hackaday.com/2021/05/31/handheld-multimeter-converted-for-bench-top-use/ | Handheld Multimeter Converted For Bench Top Use | Chris Lott | [
"Tool Hacks"
] | [
"Aneng Q1",
"bench tools",
"conversion",
"multimeter"
] | A few years ago [Mechatrommer] got one of the low-cost Aneng Q1 multimeters and has
converted it into a bench top meter
. He first tried and failed to do an LCD modification and set it aside. It remained in a storage box until he needed another meter to repair his rubidium frequency standard. Finding that off-the-shelf... | 14 | 8 | [
{
"comment_id": "6353123",
"author": "Lee",
"timestamp": "2021-05-31T23:15:05",
"content": "Not bad, and it’s battery powered too.I would of just bought an old Keithly or something if it were me.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353125",
"au... | 1,760,373,067.658343 | ||
https://hackaday.com/2021/05/31/emilys-eerie-educational-electric-eyeball-entertains/ | [Emily]’s Eerie Educational Electric Eyeball Entertains | Kristina Panos | [
"Arduino Hacks",
"Games"
] | [
"arduino",
"CdS cell",
"eye",
"eyeball",
"game",
"Joystick",
"photocell"
] | Like many of us, [Emily’s Electric Oddities] has had a lot of time for projects over the past year or so, including one that had been kicking around since late 2018. It all started at the Hackaday Superconference, when [Emily] encountered the Adafruit Hallowing board in the swag bag. Since that time, [Emily] has wanted... | 4 | 2 | [
{
"comment_id": "6353099",
"author": "macsimski",
"timestamp": "2021-05-31T20:22:21",
"content": "Oh man how i miss the eyeballs extension in mac system 6…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6357853",
"author": "Nick",
"timestamp"... | 1,760,373,067.702491 | ||
https://hackaday.com/2021/06/01/adding-in-game-reset-to-classic-playstations/ | Adding In-Game Reset To Classic Playstations | Bryan Cockfield | [
"Games"
] | [
"controller",
"emulator",
"hardware",
"optical drive",
"optical drive emulator",
"original",
"playstation",
"ps1",
"reset",
"solder"
] | The first Playstation is quickly approaching three decades since its release, and while this might make some of us who were around for that event feel a little aged, the hardware inside these machines isn’t getting any younger either. Plenty of people are replacing the optical drive in the original hardware with an opt... | 6 | 4 | [
{
"comment_id": "6353483",
"author": "jonmayo",
"timestamp": "2021-06-02T17:28:41",
"content": "I’ve been on the fence on getting a PSIO and thus displacing my vintage Mod chip. Plus they’re a bit spendy, but I do have a pretty significant PSX library that I still enjoy from time to time. “Binders f... | 1,760,373,068.380291 | ||
https://hackaday.com/2021/06/01/algae-gene-gives-blind-man-some-light-based-sight/ | Algae Gene Gives Blind Man Some Light-Based Sight | Kristina Panos | [
"Medical Hacks"
] | [
"algae",
"blindness",
"chrimson"
] | What are single-celled organisms good for, you may wonder? Science has found a wonderful new use for one of them —
restoring partial sight to people with inherited forms of blindness
. More specifically, they took a gene from algae that responds to light and moves toward it in order to replace dead or defective photo-r... | 8 | 4 | [
{
"comment_id": "6353360",
"author": "John",
"timestamp": "2021-06-02T03:44:45",
"content": "Wow! Seeing anything from seeing nothing is huge. Medical advancements are often very hacky, and I love it!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353374",
... | 1,760,373,067.820708 | ||
https://hackaday.com/2021/06/01/disposable-rocket-stove-keeps-you-fueled-in-the-wild/ | Disposable Rocket Stove Keeps You Fueled In The Wild | Kristina Panos | [
"classic hacks",
"how-to"
] | [
"bike chain",
"camping",
"coffee",
"fire",
"rocket stove"
] | Don’t know about you, but we can’t start the day without coffee and a shower. If you were to drag us on some overnight trip into the wilderness, we could probably forego the shower for a day, but we will be a grumpy trail mate without some kind coffee, even instant.
Yes, if you were to get us on an overnight outdoor ad... | 55 | 15 | [
{
"comment_id": "6353318",
"author": "DougM",
"timestamp": "2021-06-01T23:31:01",
"content": "Ok, but instant coffee?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6353345",
"author": "AwD",
"timestamp": "2021-06-02T02:14:57",
"conte... | 1,760,373,067.914344 | ||
https://hackaday.com/2021/06/01/arduboy-on-the-big-screen/ | Arduboy On The Big Screen | Tom Nardi | [
"Arduino Hacks",
"Games"
] | [
"Arduboy",
"fpga",
"vga"
] | We’re big fans of the Arduboy here at Hackaday, but we’ll admit its tiny screen isn’t exactly ideal for long gaming sessions. There are some DIY builds of the open source handheld that use a larger SPI OLED display, though you’re relatively limited on what kind of changes can be made to the hardware before the games st... | 2 | 2 | [
{
"comment_id": "6353375",
"author": "Jameswilddev",
"timestamp": "2021-06-02T06:24:56",
"content": "I’ve actually been tinkering with a ATmega based console recently and I think given the low cost of the microcontrollers a cartridge based design should just put the ATmega in the cartridge – in bulk... | 1,760,373,067.955533 | ||
https://hackaday.com/2021/06/01/anti-gravity-time-travel-and-teleportation-dr-hamming-gives-advice/ | Anti-Gravity, Time Travel, And Teleportation: Dr. Hamming Gives Advice | Al Williams | [
"Hackaday Columns",
"Interviews",
"Lifehacks",
"Slider"
] | [
"bell labs",
"career",
"hamming",
"lecture",
"research",
"richard hamming"
] | You may not know the name [Richard Hamming], but you definitely use some of his work. While working for Bell Labs, he developed Hamming codes — the parent of a class of codes that detect, and sometimes correct, errors in everything from error-correcting memory to hard drives. He also worked on the Manhattan Project and... | 27 | 10 | [
{
"comment_id": "6353267",
"author": "Ostracus",
"timestamp": "2021-06-01T17:54:51",
"content": "More like simulate the effects of anti-gravity than actually making gravity into a repulsive force.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6353268",
"a... | 1,760,373,068.33457 | ||
https://hackaday.com/2021/06/01/satellite-communications-hack-chat/ | Satellite Communications Hack Chat | Dan Maloney | [
"Hackaday Columns",
"The Hackaday Prize"
] | [
"downlink",
"Hack Chat",
"satellite",
"sdr"
] | Join us on Wednesday, June 2 at noon Pacific for the
Satellite Comms Hack Chat
with Paul Marsh!
All things considered, space isn’t that far away; you could drive the equivalent distance in an hour or two, with time for a couple of stops on the way. Of course, getting to space isn’t as simple as a Sunday drive, and yet ... | 0 | 0 | [] | 1,760,373,068.121138 | ||
https://hackaday.com/2021/06/01/trippy-tripteron-kinematics-brainteaser/ | Trippy Tripteron Kinematics Brainteaser | Chris Lott | [
"3d Printer hacks"
] | [
"3d printer",
"kinematics",
"tripteron"
] | [JK Lee] has been experimenting with a
monorail tripteron motion control system
(video, embedded below) and trying to improve performance with varying tweaks to the design and with varying degrees of success. But [JK] is enjoying this project — he was inspired by an idea that maker [Nicholas Seward] proposed —
building... | 18 | 5 | [
{
"comment_id": "6353245",
"author": "mrehorst",
"timestamp": "2021-06-01T16:03:42",
"content": "I’ve seen there’s at least one project trying to use this mechanism for a 3D printer.The problem with ay multiple joint arm robotic mechanism is wobble at the end of the arm(s). That pretty much kills it... | 1,760,373,068.267225 | ||
https://hackaday.com/2021/05/29/retrotechtacular-the-drama-of-metal-forming/ | Retrotechtacular: The Drama Of Metal Forming | Dan Maloney | [
"Retrotechtacular"
] | [
"die",
"drawing",
"extrusion",
"forging",
"forming",
"metal",
"retrotechtacular",
"rolling"
] | It may seem overwrought, but
The Drama of Metal Forming
actually is pretty dramatic.
This film is another classic of mid-century corporate communications that was typically shown in schools, which the sponsor — in this case Shell Oil — seeks to make a point about the inevitable march of progress, and succeeds mainly in... | 22 | 7 | [
{
"comment_id": "6352686",
"author": "Andy Pugh",
"timestamp": "2021-05-29T23:16:03",
"content": "You don’t have to imagine what can fo wrong, look on YouTube for “rolling mill cobble”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352694",
"author"... | 1,760,373,070.276831 | ||
https://hackaday.com/2021/05/29/reviving-old-recipe-for-faraday-wax-keeps-vacuum-experiments-going/ | Reviving Old Recipe For Faraday Wax Keeps Vacuum Experiments Going | Dan Maloney | [
"Misc Hacks"
] | [
"colophony",
"faraday",
"flux",
"pigment",
"rosin",
"sealant",
"sealing",
"vacuum",
"wax"
] | Science today seems to be dominated by big budgets and exotics supplies and materials, the likes of which the home gamer has trouble procuring. But back in the day, science was once done very much by the seats of the pants, using whatever was available for the job. And as it turns out, some of the materials the old-tim... | 24 | 9 | [
{
"comment_id": "6352656",
"author": "somebody",
"timestamp": "2021-05-29T20:26:15",
"content": "This is great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6352661",
"author": "Dan",
"timestamp": "2021-05-29T20:39:08",
"content": "I suspect he t... | 1,760,373,070.169586 | ||
https://hackaday.com/2021/05/29/robot-moves-in-any-direction-on-ball-wheels/ | Robot Moves In Any Direction On Ball Wheels | Danie Conradie | [
"Robots Hacks"
] | [
"james bruton",
"Omnidirectional Robot"
] | The ability to move in any direction and turn on the spot is a helpful feature on robots that operate indoors around other objects. [James Bruton] demonstrated one possible solution in the form of a robot chassis that can
move in any direction with three ball-shaped wheels
.
The video after the break is part two of thi... | 5 | 4 | [
{
"comment_id": "6352639",
"author": "mark g",
"timestamp": "2021-05-29T18:30:48",
"content": "That’s a really cool mechanism. Seems like it could benefit from a lower CG by moving the motors to the sides of the legs rather than the top, and possibly putting the battery down in the bottom of the cen... | 1,760,373,070.046512 | ||
https://hackaday.com/2021/05/29/living-robots-revisiting-beam/ | Living Robots: Revisiting BEAM | Elliot Williams | [
"classic hacks",
"Hackaday Columns",
"Slider"
] | [
"analog",
"beam",
"newsletter",
"nostalgia",
"robots"
] | You’re hit by the
global IC shortage
, reduced to using stone knives and bearskins, but you still want to make something neat? It’s time to revisit
BEAM robots
.
Biology, electronics, aesthetics, and mechanics
— Mark Tilden came up with the idea of minimalist electronic creatures that, through inter-coupled weak contro... | 40 | 16 | [
{
"comment_id": "6352625",
"author": "Rumble_in_the_Jungle",
"timestamp": "2021-05-29T16:52:54",
"content": "Not gonna lie, another art was stolen to collection ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352631",
"author": "Dave",
"ti... | 1,760,373,070.584078 | ||
https://hackaday.com/2021/05/29/solar-plane-is-like-one-big-flying-solar-panel/ | Solar Plane Is Like One Big Flying Solar Panel | Lewin Day | [
"green hacks",
"Misc Hacks"
] | [
"radio control",
"solar",
"solar plane",
"solar power"
] | Solar-powered plane concepts typically focus on high-efficiency glider-type designs, so as to make the best possible use of the limited power available from the sun. [rctestflight] wanted to try a different school of thought,
instead building a relatively inefficient plane that nonetheless packed a huge amount of solar... | 15 | 8 | [
{
"comment_id": "6352586",
"author": "Chris Snyder",
"timestamp": "2021-05-29T11:38:48",
"content": "wow pizza box flyer thats a new one to me",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352595",
"author": "Ostracus",
"timestamp": "2021-0... | 1,760,373,070.220502 | ||
https://hackaday.com/2021/05/29/3d-printed-flip-dots/ | 3D Printed Flip Dots | Danie Conradie | [
"3d Printer hacks",
"Misc Hacks"
] | [
"3d printed",
"eletromagnet",
"flip disc",
"flip dot display",
"h-bridge",
"multiplexing"
] | Displays have come a long way in the last few decades, but none can deliver the mesmerizing visual and audio experience of a large flip dot display. Both old panels and new panels can be expensive and difficult to source, so
[Larry Builds] made his own flip dots with the help of 3D printing
.
Flip dots are driven by a ... | 9 | 4 | [
{
"comment_id": "6352583",
"author": "Chris Snyder",
"timestamp": "2021-05-29T11:06:53",
"content": "The problem with the magnets losing their magnetic field is the heat from the iron exceeding the Curie temp",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "63... | 1,760,373,070.63201 | ||
https://hackaday.com/2021/05/28/build-a-new-zx81/ | Build A New ZX81 | Al Williams | [
"Retrocomputing"
] | [
"retrocomputing",
"sinclair zx80",
"sinclair zx81"
] | [Retro Shack’s] ZX81 died, and while he tried to figure out the fix, he
decided to build a new one
. Of course, building a circa-1980-something computer from new parts is a bit daunting. Unless you
start with an existing design
that has it all ready to put together.
The PCB looks great and we like that the silkscreen s... | 17 | 7 | [
{
"comment_id": "6352553",
"author": "Alex",
"timestamp": "2021-05-29T05:20:15",
"content": "Yes you can build a new one using new parts, even 74HC. Last year we built some using Martin’s ZX81 plus 38 design. See:https://www.mikrocontroller.net/topic/503174It worked quite well. I also built a proper... | 1,760,373,070.107693 | ||
https://hackaday.com/2021/05/30/neural-networks-emulate-any-guitar-pedal-for-120/ | Neural Networks Emulate Any Guitar Pedal For $120 | Adam Zeloof | [
"Machine Learning",
"Musical Hacks",
"News",
"Raspberry Pi"
] | [
"audio",
"effects",
"guitar",
"machine learning",
"raspberry pi",
"vst"
] | It’s a well-established fact that a guitarist’s acumen can be accurately gauged by the size of their pedal board- the more stompboxes, the better the player. Why have one box that can do everything when you can have many that do just a few things?
Jokes aside, the idea of replacing an entire pedal collection with a sin... | 62 | 21 | [
{
"comment_id": "6352874",
"author": "Daniel Dunn",
"timestamp": "2021-05-30T21:02:10",
"content": "Can it emulate the satisfying feeling of unboxing more crap instead of practicing? The ten minutes period where you think this new pedal is the one that will finally make you good before you realize... | 1,760,373,070.504548 | ||
https://hackaday.com/2021/05/30/bicycle-flywheel-stores-a-bit-of-energy-not-much/ | Bicycle Flywheel Stores A Bit Of Energy, Not Much | Lewin Day | [
"Misc Hacks"
] | [
"bicycle",
"flywheel"
] | Kinetic energy recovery systems have often been proposed as a useful way to improve the efficiency of on-road vehicles, and even used to great effect in motorsports for added performance. [Tom Stanton] decided to build one of his own,
outfitting a simple bicycle with a flywheel system for harvesting energy.
(Video, emb... | 49 | 13 | [
{
"comment_id": "6352820",
"author": "Jerry",
"timestamp": "2021-05-30T17:10:45",
"content": "Cool experiment.. The large flywheels on the rear of trucks and manual transmission vehicles, store energy in the same fashion. Spinning a flywheel in an effort to power a device, has been a frustrating thi... | 1,760,373,070.714656 | ||
https://hackaday.com/2021/05/30/aircraft-compass-teardown/ | Aircraft Compass Teardown | Al Williams | [
"Repair Hacks",
"Teardown"
] | [
"aircraft",
"avionics",
"binnacle",
"compass",
"teardown"
] | We didn’t know what a
C-2400 LP
was before we saw [David’s] video below, but it turned out to be pretty interesting. The device is an aircraft compass and after replacing it, he decided to take it apart for us. Turns out, that like a nautical compass, these devices need adjustment for all the metal around them. But whi... | 6 | 3 | [
{
"comment_id": "6352813",
"author": "Paul",
"timestamp": "2021-05-30T16:13:18",
"content": "Of course, these days you don’t actually need a floating magnet to make a compass.Aircraft still need magnetic compasses that do not require power to operate. The regulations:No person shall conduct a take-o... | 1,760,373,070.407136 | ||
https://hackaday.com/2021/05/30/tiny-pcb-motor-robot-is-making-its-first-wobbly-moves/ | Tiny PCB Motor Robot Is Making Its First Wobbly Moves | Danie Conradie | [
"Robots Hacks"
] | [
"brushless motor",
"Carl Bugeja",
"pcb motor",
"robot"
] | [Carl Bugeja] has been working on his PCB motors for more than three years now, and it doesn’t seem like he is close to running out of ideas for the project. His latest creation is a tiny Bluetooth-controlled robot built around two of these motors.
One of the main challenges of these
axial flux PCB motors
is their low ... | 10 | 3 | [
{
"comment_id": "6352767",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-05-30T11:29:32",
"content": "Hmm, nice one, pertinent video, well done,Thanks for posting :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6352791",
"author"... | 1,760,373,070.761107 | ||
https://hackaday.com/2021/05/30/small-swedish-stores-are-miniature-oases-in-a-national-food-desert/ | Small Swedish Stores Are Miniature Oases In A National Food Desert | Kristina Panos | [
"Lifehacks"
] | [
"bodega",
"food desert",
"grocery store",
"shipping container",
"small town logistics"
] | It all started one night in 2016 after [Robert Ilijason] dropped the last remaining jar of baby food in the house, breaking it. On the 20-minute drive to the nearest supermarket, he had an idea:
what if there were small, 24-hour convenience-level grocery stores
that could fill the glaring need for access to basics acro... | 47 | 16 | [
{
"comment_id": "6352741",
"author": "ouieg",
"timestamp": "2021-05-30T08:04:37",
"content": "In Poland a shop like this would be emptied in one night because of how lawless the country is.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352876",
"au... | 1,760,373,070.845254 | ||
https://hackaday.com/2021/05/29/spell-checking-your-programming-from-the-linux-command-line/ | Spell Checking Your Programming From The Linux Command Line | Al Williams | [
"Linux Hacks",
"Software Development"
] | [
"programming",
"source code",
"spell checker",
"spellchecker"
] | For most of us who didn’t do well in high school English class, spell checkers are a real game-changer. Sure, you can still swap a “to” and a “too,” but a spell checker will catch a lot of typos. But what about in your source code? You usually don’t spell check source code and even if you did, the rules are funny. Afte... | 17 | 12 | [
{
"comment_id": "6352724",
"author": "doragasu",
"timestamp": "2021-05-30T06:09:19",
"content": "I usually enable spell checking in vim, and it only checks for typos in comment blocks (that is the only place where most of the times you want to check).",
"parent_id": null,
"depth": 1,
"re... | 1,760,373,070.949013 | ||
https://hackaday.com/2021/05/29/chainsaw-cuts-more-than-timber/ | Chainsaw Cuts More Than Timber | Bryan Cockfield | [
"Tool Hacks"
] | [
"chainsaw",
"concrete",
"grinder",
"machine",
"machine shop",
"metal",
"saw",
"welding"
] | We often take electricity for granted, to the point of walking into a room during a power outage and still habitually flipping the light switch. On the other hand, there are plenty of places where electricity isn’t a given, either due to poor infrastructure or an otherwise remote location. To get common electric power ... | 13 | 7 | [
{
"comment_id": "6352711",
"author": "BobbyMac",
"timestamp": "2021-05-30T03:17:56",
"content": "What is the cost benefit of this conversion compared to buying one directly?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352713",
"author": "Dr",
... | 1,760,373,070.895295 | ||
https://hackaday.com/2021/05/28/web-assembly-music-synthesis-and-the-beauty-of-math/ | Web Assembly, Music Synthesis, And The Beauty Of Math | Al Williams | [
"Musical Hacks",
"Software Development"
] | [
"emscripten",
"math",
"music",
"synthesizer",
"webasm",
"webassembly"
] | The electronics hobby has changed a lot since the advent of the microprocessor. Before that — and with the lack of large-scale integrated circuits — projects in magazines tended to be either super simple or ultra complex. However, one popular type of project dealt with music synthesis. Fairly simple circuits could comb... | 9 | 7 | [
{
"comment_id": "6352551",
"author": "Michael Black",
"timestamp": "2021-05-29T04:51:16",
"content": "And nobody complained that the complicated projects were too hard. They dud want simoke projects, but they didn’t say “let’s not see complicated projects until some device can be invented that does... | 1,760,373,071.057793 | ||
https://hackaday.com/2021/05/28/jtag-hat-turns-raspberry-pi-into-a-networked-debugger/ | JTAG Hat Turns Raspberry Pi Into A Networked Debugger | Tom Nardi | [
"Raspberry Pi",
"Tool Hacks"
] | [
"debug",
"jtag",
"level shifter",
"microcontrollers",
"openocd",
"SWD"
] | Over the last year or so we’ve noticed a definite uptick in the number of folks using OpenOCD on the Raspberry Pi. It’s a cheap and convenient solution for poking around with various microcontrollers and embedded devices, but not always the most elegant. Looking to improve on the situation somewhat,
[Matthew Mets] has ... | 7 | 4 | [
{
"comment_id": "6352533",
"author": "jcamdr",
"timestamp": "2021-05-29T01:15:43",
"content": "OpenOCD is versatile but is bloated by the TCL scripts architecture, different for every target families. Also the reset handling framework is unable to reliably work ultra deep sleep of some targets and m... | 1,760,373,070.995109 | ||
https://hackaday.com/2021/05/28/3d-printing-a-centrifugal-water-pump/ | 3D Printing A Centrifugal Water Pump | Lewin Day | [
"3d Printer hacks"
] | [
"PLA",
"pump",
"water pump"
] | Once upon a time, 3D printing was about churning out tiny Yodas and Pikachus, but these days, useful things are regularly 3D printed too.
A great example is this centrifugal water pump that can really deliver the juice, courtesy of [Connor]
.
The pump’s housings and impeller are all 3D printed in PLA, as well as the i... | 43 | 5 | [
{
"comment_id": "6352477",
"author": "Phil",
"timestamp": "2021-05-28T20:08:34",
"content": "It’s fun making stuff, but a self contained pump with magnetic coupling can be had for very little. So I salute this build and it’s orangeness :)",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,373,071.458537 | ||
https://hackaday.com/2021/05/28/put-apis-to-work-wth-this-arduinojson-walkthrough/ | Put APIs To Work Wth This ArduinoJson Walkthrough | Dan Maloney | [
"Microcontrollers"
] | [
"api",
"application programming interface",
"ArduinoJson",
"Deserialization",
"JavaScript Oject Notation",
"json",
"parsing",
"serialization"
] | One of the things this community is famous for is the degree to which people will pitch in to fill an obvious need. Look at the vast array of libraries available for Arduino as an example of how people are willing to devote their time to making difficult tasks easier, often for little more than a virtual pat on the bac... | 6 | 3 | [
{
"comment_id": "6352461",
"author": "WereCatf",
"timestamp": "2021-05-28T18:55:52",
"content": "I’ve used ArduinoJSON for a while and I think it’s a great library, saves me a lot of work. I don’t use it for parsing some APIs from some random service, though, but instead I use it to pass sensor-data... | 1,760,373,071.501296 | ||
https://hackaday.com/2021/05/28/the-many-levels-of-autonomous-motoring/ | The Many Levels Of Autonomous Motoring | Jenny List | [
"Featured",
"Interest",
"Original Art",
"Transportation Hacks"
] | [
"autonomous cars",
"cars",
"SAE",
"self-driving"
] | For years now we have been told that self-driving cars will be the Next Big Thing, and we’ve seen some companies — yes, Tesla but others too — touting current and planned features with names like “Autopilot” and “self-driving”. Cutting through the marketing hype to unpacking what that really means is difficult. But the... | 40 | 10 | [
{
"comment_id": "6352448",
"author": "turtle-z",
"timestamp": "2021-05-28T18:04:41",
"content": "Will we also need many levels of autonomous motoring insurance?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6352454",
"author": "Jii",
"timestamp": "202... | 1,760,373,071.739985 | ||
https://hackaday.com/2021/05/28/hackaday-podcast-120-chip-shortage-vga-glitching-truly-owning-roku-and-omniballs/ | Hackaday Podcast 120: Chip Shortage, VGA Glitching, Truly Owning Roku, And Omniballs | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Elliot Williams and Mike Szczys recount a week of awesome hacks. One you might have missed involves a Roku-based smart TV that was rooted and all secrets laid bare for the sole purpose of making an Ambilight setup work with it. We take a look at a creative blade-tracking system for a scrollsaw CNC proj... | 4 | 2 | [
{
"comment_id": "6352440",
"author": "Tyler",
"timestamp": "2021-05-28T17:17:47",
"content": "I can’t believe I missed the click of death. I spent 8 hours plus a couple weeks ago getting all my data off and external drive that kept clicking…",
"parent_id": null,
"depth": 1,
"replies": []... | 1,760,373,071.292503 | ||
https://hackaday.com/2021/05/28/3d-printed-mars-rover-smiles-for-the-camera/ | 3D Printed Mars Rover Smiles For The Camera | Tom Nardi | [
"Misc Hacks"
] | [
"3d model",
"digital photography",
"mars rover",
"nasa",
"Perseverance"
] | You’d be forgiven for thinking these pictures of NASA’s
Perseverance
Mars rover were renderings of the real deal on the Red Planet, if it wasn’t for the golf ball tucked in for scale, anyway. What you’re actually looking at is a 3D printed model
made by [Alex Givens] that he brought out to the desert for a photo shoot ... | 3 | 1 | [
{
"comment_id": "6352424",
"author": "TM32",
"timestamp": "2021-05-28T15:11:02",
"content": "If that’s a golf ball, where are the dimples?!?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352432",
"author": "Henry Kowalski",
"timestamp": "20... | 1,760,373,071.380643 | ||
https://hackaday.com/2021/05/28/this-week-in-security-m1racles-the-full-half-double-and-patch-gaps/ | This Week In Security: M1RACLES, The Full Half-Double, And Patch Gaps | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"Patch Gap",
"ransomware",
"Rowhammer",
"This Week in Security"
] | We occasionally make fun of new security vulnerabilities that have a catchy name and shiny website. We’re breaking new ground here, though, in covering
a shiny website that makes fun of itself
. So first off, this is a real vulnerability in Apple’s brand-new M1 chip. It’s got CVE-2021-30747, and in some very limited ca... | 10 | 5 | [
{
"comment_id": "6352414",
"author": "mathman",
"timestamp": "2021-05-28T14:41:41",
"content": "“…and the glass is definitely Half-Double full…” , thanks that really made me laugh!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6352427",
"author": "Mog",
... | 1,760,373,071.792876 | ||
https://hackaday.com/2021/05/28/worlds-first-rp2040-qwerty-computer/ | World’s First RP2040 QWERTY Computer | Chris Lott | [
"Raspberry Pi",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"devkit",
"IPS display",
"qwerty",
"Raspberry Pi Pico",
"rp2040"
] | Independent hardware developer [bobricius] is at it again, making what he claims is the world’s first Pico RP2040 QWERTY + IPS development kit — the
PICOmputer
. This is a palm-sized computer of sorts. It integrates a keyboard made from tactile push button switches, a TFT IPS display, and a RP2040 Pico computer module.... | 21 | 11 | [
{
"comment_id": "6352376",
"author": "BEN",
"timestamp": "2021-05-28T11:21:26",
"content": "This would make a great LoRA messaging terminal – really neat!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352388",
"author": "John",
"timestamp":... | 1,760,373,071.897846 | ||
https://hackaday.com/2021/05/28/can-you-hot-swap-flash-chips-in-a-consumer-router/ | Can You Hot-Swap Flash Chips In A Consumer Router? | Lewin Day | [
"Misc Hacks"
] | [
"flash",
"nand",
"NAND flash",
"router"
] | Sometimes, you mess up when toying with the firmware of an embedded device and end up “bricking” what you were working on. [Chris Bellows] had done just that with a consumer router, corrupting the onboard NAND flash to the point where recovery via normal means was impossible. Armed with a working duplicate of the route... | 29 | 15 | [
{
"comment_id": "6352360",
"author": "Someone",
"timestamp": "2021-05-28T08:19:27",
"content": "That’s a really cool hack",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352375",
"author": "twiister",
"timestamp": "2021-05-28T11:15:46",
... | 1,760,373,071.661283 | ||
https://hackaday.com/2021/05/27/tndlpt-brings-tandy-sound-to-any-dos-computer/ | TNDLPT Brings Tandy Sound To Any DOS Computer | Lewin Day | [
"Misc Hacks"
] | [
"parallel",
"parallel port",
"SN76489",
"tandy 1000"
] | The Tandy 1000, among other contemporary computers and consoles of the 1980s, used the Texas Instruments SN76489 for its sound and musical output. This venerable sound chip can now be used on virtually any DOS machine, as long as it has a parallel port –
thanks to the TNDLPT adapter!
The adapter consists of the SN76489... | 9 | 7 | [
{
"comment_id": "6352357",
"author": "Mirko Alessandria",
"timestamp": "2021-05-28T07:54:18",
"content": "Sounds great!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6352368",
"author": "dave",
"timestamp": "2021-05-28T10:26:00",
"content": "…and ... | 1,760,373,071.836492 | ||
https://hackaday.com/2021/05/27/deep-learning-enables-intuitive-prosthetic-control/ | Deep Learning Enables Intuitive Prosthetic Control | Lewin Day | [
"Machine Learning"
] | [
"arm",
"CUDA",
"deep neural networks",
"machine learning",
"neural networks",
"prosthetic",
"Prosthetic arm"
] | Prosthetic limbs have been slow to evolve from simple motionless replicas of human body parts to moving, active devices. A major part of this is that controlling the many joints of a prosthetic is no easy task. However, researchers have worked to simplify this task,
by capturing nerve signals and allowing deep learning... | 7 | 5 | [
{
"comment_id": "6352315",
"author": "Ostracus",
"timestamp": "2021-05-28T03:04:44",
"content": "” If it can be combined with a non-invasive nerve interface, expect this technology to explode in use around the world.”We just may get the bionic man.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,373,071.949414 | ||
https://hackaday.com/2021/05/27/investigating-a-new-chip-in-a-minimalist-led-lamp/ | Investigating A New Chip In A Minimalist LED Lamp | Danie Conradie | [
"LED Hacks"
] | [
"bridge rectifier",
"circuit design",
"LED driver",
"reverse engineering"
] | Teardowns of cheap electronic devices can produce results that are interesting, horrifying, or both, especially when mains power is involved. [bigclivedotcom] gave a
minimalist LED lamp his reverse engineering treatment
, and discovered a new chip that requires only four additional passive components to run LEDs on AC ... | 8 | 6 | [
{
"comment_id": "6352288",
"author": "Le-Bastion",
"timestamp": "2021-05-27T23:34:00",
"content": "i saw this componen last year in power supplies from television decoder DVB TNT. the two pins spaced from the 6 others seems to bi the imput power",
"parent_id": null,
"depth": 1,
"replies"... | 1,760,373,071.992553 | ||
https://hackaday.com/2021/05/27/this-esp32-bluetooth-page-turner-cant-get-any-easier/ | This ESP32 Bluetooth Page Turner Can’t Get Any Easier | Tom Nardi | [
"Peripherals Hacks"
] | [
"bluetooth",
"human interface device",
"page turner",
"pedal"
] | Commercial Bluetooth pedals, designed to allow musicians to flip pages of sheet music on a tablet, have the sort of inflated price tag you’d expect for a niche electronic device. Rather than forking as much as $100 USD over for the privilege of hands-free page flipping,
[Joonas Pihlajamaa] decided to build his own extr... | 8 | 6 | [
{
"comment_id": "6352256",
"author": "Sean",
"timestamp": "2021-05-27T20:31:30",
"content": "Yes, this is good.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6352284",
"author": "Andrew",
"timestamp": "2021-05-27T22:29:51",
"content": "Master, wha... | 1,760,373,072.130928 | ||
https://hackaday.com/2021/05/27/finite-element-analysis-vs-real-world/ | Finite Element Analysis Vs Real World | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"finite element analysis"
] | In advanced engineering circles, the finite element method — or, more commonly, finite element analysis — is a real staple. With the advent of more powerful home computers, though, even your home projects can benefit. The technique itself is very general, but you usually see it used for structural analysis. However, yo... | 15 | 8 | [
{
"comment_id": "6352232",
"author": "Salvador Limones",
"timestamp": "2021-05-27T19:32:30",
"content": "The whole point of FEM is to avoid solving differential equations. You solve a [rather large] system of linear equations.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,072.08066 | ||
https://hackaday.com/2021/05/27/history-of-closed-captions-entering-the-digital-era/ | History Of Closed Captions: Entering The Digital Era | Chris Lott | [
"Hackaday Columns",
"History",
"Original Art",
"Video Hacks"
] | [
"BD",
"closed captions",
"dvd",
"eia-608",
"eia-708",
"laser disc",
"line 21"
] | When you want to read what is being said on a television program, movie, or video you turn on the captions. Looking under the hood to see how this text is delivered is a fascinating story that stared with a technology called Closed Captions, and extended into another called Subtitles (which is arguably the older techno... | 42 | 17 | [
{
"comment_id": "6352194",
"author": "steelman",
"timestamp": "2021-05-27T17:29:05",
"content": "Then along comes digital video in formats like Laser DiscNo, LaserDisc was not a digital format.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352248",
... | 1,760,373,072.22211 | ||
https://hackaday.com/2021/05/27/one-inkscape-plugin-collection-to-rule-them-all/ | One Inkscape Plugin Collection To Rule Them All | Lewin Day | [
"Misc Hacks"
] | [
"inkscape"
] | Inkscape is an amazing piece of open source software, a vector graphics application that’s a million times more lightweight than comparable commercial offerings while coming in at the low, low price of free. The software also has plenty of extensions floating around on the Internet, though until now, they haven’t been ... | 40 | 11 | [
{
"comment_id": "6352168",
"author": "Ostracus",
"timestamp": "2021-05-27T15:38:21",
"content": "Just make certain there’s some kind of security so the repository doesn’t end up as a vector for bad people.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "63532... | 1,760,373,072.411487 | ||
https://hackaday.com/2021/05/27/electric-vehicles-do-battle-on-pikes-peak/ | Electric Vehicles Do Battle On Pikes Peak | Lewin Day | [
"car hacks",
"Featured",
"green hacks",
"Interest",
"Original Art",
"Slider"
] | [
"car",
"car hacks",
"electric vehicle",
"ev"
] | When we think of electric cars, more often than not we’re drawn to the environmental benefits and the smooth quiet commuter drives they’re so ideally suited for. However, EVs can also offer screaming performance, most notably due to their instant-on torque that gives them a big boost over internal combustion vehicles.
... | 61 | 16 | [
{
"comment_id": "6352152",
"author": "Pekka",
"timestamp": "2021-05-27T14:18:50",
"content": "Was that picture of Katy Endicott’s Honda Civic taken by the author? If not, what’s the source? It’d do well on the wikipedia page for the event (licence permitting).",
"parent_id": null,
"depth": 1... | 1,760,373,072.629801 | ||
https://hackaday.com/2021/05/27/samsung-releases-minimum-viable-galaxy-upcycling/ | Samsung Releases Minimum Viable Galaxy Upcycling | Roger Cheng | [
"Android Hacks"
] | [
"samsung",
"smart home",
"smartphone",
"smartthings",
"upcycling"
] | It’s a tragedy every time a modern smartphone is tossed into e-waste. We prefer to find another life for these bundles of useful hardware. But given all the on-board barriers erected by manufacturers, it’s impractical to repurpose smartphones without their support. A bit of good news on this front is Samsung testing th... | 30 | 19 | [
{
"comment_id": "6352128",
"author": "Ricardo EA4GMZ",
"timestamp": "2021-05-27T11:47:31",
"content": "Wishing to hear suggestions for old phones. In the meantime Lineage is useful for some Galaxies.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6352187",
... | 1,760,373,072.528224 | ||
https://hackaday.com/2021/05/27/wifi-penetration-testing-with-an-esp32/ | WiFi Penetration Testing With An ESP32 | Danie Conradie | [
"Wireless Hacks"
] | [
"deauth attack",
"ESP32",
"wifi"
] | WiFi is one of those technologies that most of us would have trouble living without. Unfortunately, there are several vulnerabilities in the underlying 802.11 standards that could potentially be exploited. To demonstrate just how simple this can be, [
risinek
] developed the
ESP32 Wi-Fi Penetration Tool
that runs on ch... | 13 | 6 | [
{
"comment_id": "6352119",
"author": "rok",
"timestamp": "2021-05-27T10:14:49",
"content": "Oh, can´t wait to read the usual offended whining comments “But this is illegal, it is not responsible for HaD to publish something about thiiiis”. They likely prefer security by obscurity and no testing ever... | 1,760,373,072.458466 | ||
https://hackaday.com/2021/05/26/obsessively-explaining-the-visual-effects-in-flight-of-the-navigator/ | Obsessively Explaining The Visual Effects InFlight Of The Navigator | Zach Zeman | [
"Video Hacks"
] | [
"cgi",
"filmmaking",
"movie",
"props",
"scale model",
"special effects",
"stop motion"
] | [Captain Disillusion] has earned a reputation on YouTube for debunking hoaxes and spreading a healthy sense of skepticism while having some of the highest production value on the platform and pretending to be some kind of inter-dimensional superhero. You’ve likely seen him give a careful explanation of how some viral v... | 8 | 6 | [
{
"comment_id": "6352082",
"author": "Marvin",
"timestamp": "2021-05-27T06:22:28",
"content": "I love the ingenuity in “older” movie VFX.And the total chaos, too. Go watch documentaries about the making of the first Alien movie, or Apocalypse Now. Totally insane!",
"parent_id": null,
"depth"... | 1,760,373,072.75754 | ||
https://hackaday.com/2021/05/26/yet-another-rigol-ds1054z-viewer/ | Yet Another Rigol DS1054Z Viewer | Chris Lott | [
"Tool Hacks"
] | [
"free pascal",
"linux",
"pyvisa",
"Rigol 1054Z",
"screen capture"
] | Tired of squinting at the small numbers on the oscilloscope display, [Alfred] aka [Gaze@] decided to take matters into his own hands and
wrote yet another tool
to remotely view images from a Rigol DS1054Z. At least that was the initial idea. But, it grew unexpectedly — as [Alfred] says, “the more the project turned out... | 22 | 8 | [
{
"comment_id": "6352048",
"author": "smellsofbikes",
"timestamp": "2021-05-27T02:37:05",
"content": "I use labview/GPIB at work and python/GPIB at home; one advantage is I buy (at home) test instruments with damaged panels that nobody else wants and can run them via remote just fine. (Sometimes yo... | 1,760,373,072.816023 | ||
https://hackaday.com/2021/05/26/speech-recognition-on-an-arduino-nano/ | Speech Recognition On An Arduino Nano? | Orlando Hoilett | [
"Arduino Hacks"
] | [
"ai",
"alexa",
"artificial intelligence",
"cortana",
"digital signal processing",
"echo",
"privacy",
"siri",
"spectrum",
"speech recognition"
] | Like most of us, [Peter] had a bit of extra time on his hands during quarantine and decided to take a look back at speech recognition technology in the 1970s. Quickly, he started thinking to himself, “Hmm…I wonder if I could do this with an Arduino Nano?” We’ve all probably had similar thoughts,
but [Peter] really put ... | 24 | 7 | [
{
"comment_id": "6352015",
"author": "Paul",
"timestamp": "2021-05-26T23:11:59",
"content": "I judged high school science fairs in the 1980s. One kid showed up with a functional speech recognition system running on a Sinclair ZX-81 with no other hardware other than a microphone. It could recognize... | 1,760,373,072.881857 | ||
https://hackaday.com/2021/05/26/all-wheel-drive-bicycle-using-hand-drill-parts/ | All-Wheel Drive Bicycle Using Hand Drill Parts | Danie Conradie | [
"Transportation Hacks"
] | [
"all wheel drive",
"bevel gear",
"bicycle",
"differential"
] | A skilled mountain biker can cross some extreme terrain, but [The Q] thought there might be room for improvement, so he
converted a fat bike to all-wheel drive
.
The major challenge here is transferring pedal power to the front wheels, especially around the headset. [The Q] solved this by effectively building a differe... | 33 | 11 | [
{
"comment_id": "6351973",
"author": "macsimski",
"timestamp": "2021-05-26T20:24:17",
"content": "well. the main problem will be that of friction. the ride will be a lot tougher. you already see him pushing really hard at the pedals even on almost horizontal ground.but a nice try anyway. although me... | 1,760,373,072.946462 | ||
https://hackaday.com/2021/05/26/esp8266-adds-wifi-to-a-433-mhz-weather-station/ | ESP8266 Adds WiFi To A 433 MHz Weather Station | Tom Nardi | [
"Microcontrollers",
"Radio Hacks"
] | [
"433 mhz",
"ESP8266",
"GnuRadio",
"reverse engineering",
"weather station",
"weather underground"
] | There’s no shortage of cheap weather stations on the market that pull in data from several wireless sensors running in the 433 to 900 MHz range and present you with a slick little desktop display, but that’s usually where the flow of information stops. Looking to bridge the gap and bring all that local climate data ont... | 7 | 5 | [
{
"comment_id": "6351956",
"author": "Ostracus",
"timestamp": "2021-05-26T18:41:47",
"content": "“There’s no shortage of cheap weather stations on the market that pull in data from several wireless sensors running in the 433 to 900 MHz range and present you with a slick little desktop display, but t... | 1,760,373,072.996456 | ||
https://hackaday.com/2021/05/26/flat-pack-pasta-like-ikea-furniture-without-the-weird-wrench/ | Flat-Pack Pasta: Like Ikea Furniture Without The Weird Wrench | Kristina Panos | [
"cooking hacks",
"Featured",
"green hacks",
"Interest",
"Slider"
] | [
"flat pack",
"flatpack",
"pasta",
"PDMS",
"transient morphing"
] | When it comes to food packaging, there’s no bigger scam than potato chip bags, right? People complain about the air (nitrogen, actually) inside, but it’s there for a reason — nitrogen pushes out oxygen, so the chips live in a state of factory-fresh dormancy until you rip open the bag and release the gas. If you want fl... | 46 | 11 | [
{
"comment_id": "6351934",
"author": "tekkieneet",
"timestamp": "2021-05-26T17:32:10",
"content": "Instant noodles are pre-cooked and dried by deep frying. They can be cook in minutes or eaten as is. I have a few saved for blackouts with my penny stove. Nothing beats a hot meal when the heat and ... | 1,760,373,073.08592 | ||
https://hackaday.com/2021/05/26/voidstars-vitals-visualized-for-video/ | Voidstar’s Vitals, Visualized For Video | Kristina Panos | [
"LED Hacks"
] | [
"emotibit",
"ESP32",
"heartbeat",
"hexagon",
"hexagonal display",
"pulse oximeter"
] | Great news for fans of [Voidstar Labs] — [Zack] is going to be streaming future builds live on YouTube instead of trying to keep up with a grueling and limiting schedule of releasing a build video every week. The only problem is that the wall behind him is totally blank and boring, which matters quite a bit for pretty ... | 4 | 2 | [
{
"comment_id": "6351940",
"author": "thantik",
"timestamp": "2021-05-26T17:55:05",
"content": "Lots of flack from the peanut gallery on a really awesome project that’s documented pretty nicely for anyone who wishes to replicate it. Does Hackaday not like these things now or are we all just grumpy ... | 1,760,373,073.134601 | ||
https://hackaday.com/2021/05/26/teardown-radica-i-racer/ | Teardown: RADICA I-Racer | Tom Nardi | [
"Hackaday Columns",
"Slider",
"Teardown",
"Toy Hacks"
] | [
"head mounted display",
"lcd games",
"mirror",
"virtual reality",
"vr"
] | Long before the Oculus Rift and HTC Vive came along, some of the biggest names in gaming tried to develop practical stereoscopic displays. These early attempts at virtual reality (VR) were hindered by the technical limitations of their time, and most never progressed beyond the prototype stage. Of the ones that did mak... | 3 | 2 | [
{
"comment_id": "6351912",
"author": "AnonyClone",
"timestamp": "2021-05-26T15:36:02",
"content": "Or a clone of Nintendo Virtual Boy..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6351932",
"author": "Virtual Man",
"timestamp": "2021-05-26... | 1,760,373,073.499739 | ||
https://hackaday.com/2021/05/26/disguising-the-ps5-with-a-custom-wood-and-carbon-fiber-enclosure/ | Disguising The PS5 With A Custom Wood And Carbon Fiber Enclosure | Danie Conradie | [
"Tech Hacks"
] | [
"Carbon Fibre",
"custom enclosure",
"diy perks",
"PlayStation 5",
"wood"
] | The PlayStation 5 has a very distinctive enclosure that some love and others hate. Its design certainly does not lend itself to lying on its side, even though this is a more practical orientation for putting on a shelf in a TV console. [Matt] from [DIY Perks] decided to address this and built a custom
wood and carbon f... | 8 | 5 | [
{
"comment_id": "6351870",
"author": "kc8rwr",
"timestamp": "2021-05-26T13:21:43",
"content": "Ewwww. That’s my reaction to the original case, not the wooden one. I know everyone hates a plain beige box these days but I’ll take one over something so awkward as that any day.The wooden case is beauti... | 1,760,373,073.23705 | ||
https://hackaday.com/2021/05/26/neopill-is-the-neopixel-emulator-youve-always-wanted/ | NeoPill Is The NeoPixel Emulator You’ve Always Wanted | Lewin Day | [
"LED Hacks"
] | [
"emulator",
"neopixel",
"ws2182b"
] | NeoPixels and other addressable LED strings are a technology that have made vibrant, glowing LED projects accessible to all. Of course, it’s nice to be able to simulate your new glowy project in software before you actually set up your LED strings in practice.
[Randy Elwin]’s NeoPill simulator can help with that!
The N... | 16 | 7 | [
{
"comment_id": "6351808",
"author": "edwin",
"timestamp": "2021-05-26T08:24:12",
"content": "this is awesome",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6351877",
"author": "rpavlik",
"timestamp": "2021-05-26T13:47:40",
"content":... | 1,760,373,073.185029 | ||
https://hackaday.com/2021/05/25/high-voltage-gives-metal-balls-a-mind-of-their-own/ | High Voltage Gives Metal Balls A Mind Of Their Own | Tom Nardi | [
"Science"
] | [
"fractal",
"high voltage",
"Plasma Channel"
] | Have you ever seen something that’s so fascinating you’re
sure
there has to be some kind of practical application for it, but you just can’t figure out what? That’s how we feel when watching tiny ball bearings assemble themselves into alien-like structures under the influence of high voltage
in the latest
Plasma Channe... | 19 | 11 | [
{
"comment_id": "6351770",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-05-26T05:38:50",
"content": "Ah ha, radiating, reminds me of various claims high voltage & pulsed magnetic fields could offer gravity perturbations, with an altered directional vector oriented suitable h... | 1,760,373,073.562181 | ||
https://hackaday.com/2021/05/25/ptychography-shows-atoms-at-amazing-revolution/ | Ptychography Shows Atoms At Amazing Resolution | Al Williams | [
"News",
"Science"
] | [
"atoms",
"electron microscope",
"electron microscopy",
"ptychography"
] | Cornell University enhanced electron microscopy using a technique known as ptychography in 2018. At the time, it allowed an electron microscope to resolve things three times smaller than previously possible. But that wasn’t enough. The team has now
doubled that resolution
by improving on their previous work.
The team s... | 34 | 8 | [
{
"comment_id": "6351740",
"author": "CMH62",
"timestamp": "2021-05-26T03:01:02",
"content": "Well, I’m glad we got that resolved. 😆",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6351751",
"author": "Tom",
"timestamp": "2021-05-26T03:54:14",
"co... | 1,760,373,073.397335 | ||
https://hackaday.com/2021/05/25/putting-leds-in-motorcyle-tail-light-shows-how-trivial-becomes-tough/ | Putting LEDs In Motorcyle Tail Light Shows How Trivial Becomes Tough | Donald Papp | [
"LED Hacks",
"Transportation Hacks"
] | [
"incandescent",
"led",
"LED replacement",
"motorcycle",
"tail light"
] | [Maarten Tromp]’s
replacement of his motorcycle’s tail light with LED equivalents
is a great example of something that every hacker learns sooner or later: interfacing to and working around existing parts can turn a trivial-seeming task into a much bigger job than expected. The more one has to work within the constrain... | 57 | 12 | [
{
"comment_id": "6351702",
"author": "Ergotron",
"timestamp": "2021-05-25T23:19:06",
"content": "Appreciate the effort he put in, but honestly, I would have just gotten the aftermarket LED bulbs. If his concern is really reliability, this homebrew solution seems far more likely to fail in the middle... | 1,760,373,073.703454 | ||
https://hackaday.com/2021/05/25/3d-printed-joystick-using-spherical-flexure-joint/ | 3D Printed Joystick Using Spherical Flexure Joint | Danie Conradie | [
"Peripherals Hacks",
"Tech Hacks"
] | [
"3D printable",
"compliant mechanism",
"Joystick"
] | One of the many advancements brought about by 3D printing is the rapid development of compliant mechanisms and flexure joints. One such example is [jicerr]’s
joystick
, which uses a pair of
spherical flexure joints
recently developed by
researchers from Delft University of Technology in the Netherlands
, See the videos... | 19 | 9 | [
{
"comment_id": "6351674",
"author": "Dude",
"timestamp": "2021-05-25T21:29:15",
"content": "Is there a nuts and bolts version of this, or is this some very special FEM modeled thing that needs to be done just so?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,373,073.905935 | ||
https://hackaday.com/2021/05/25/robot-arm-adds-freedom-to-3d-printer/ | Robot Arm Adds Freedom To 3D Printer | Bryan Cockfield | [
"3d Printer hacks"
] | [
"3d printer",
"arduino",
"carbon fiber",
"reinforced",
"robotic arm",
"six-axis",
"strength"
] | 3D printers are an excellent tool to have on hand, largely because they can print other tools and parts rapidly without needing to have them machined or custom-ordered. 3D printers have dropped in price as well, so it’s possible to have a fairly capable machine in your own home for only a few hundred dollars. With that... | 6 | 4 | [
{
"comment_id": "6351681",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-05-25T21:52:14",
"content": "Logical extension I guess, time will come I think we’ll have an upper torso human like robot with greater articulation of limbs then the limited human skeletal arm movements.... | 1,760,373,073.609307 | ||
https://hackaday.com/2021/05/25/getting-started-with-aluminum-extrusions/ | Getting Started With Aluminum Extrusions | Al Williams | [
"3d Printer hacks",
"Hackaday Columns",
"Interest",
"Slider",
"Tool Hacks"
] | [
"8020",
"aluminum extrusion",
"extrusion",
"Misumi",
"structural framing systems"
] | T-slot extrusions used to be somewhat mysterious, but today they are quite common thanks to their use in many 3D printers. However, it is one thing to assemble a kit with some extrusions and another thing to design your own creations with the material. If you ever had a Play-Doh Fun Factory as a kid, then you know abou... | 64 | 23 | [
{
"comment_id": "6351598",
"author": "Peter",
"timestamp": "2021-05-25T17:19:30",
"content": "Nice summary; thanks! Can we get a compare and contrast on extrusion versus channel strut? (I have one thing in my house Frankensteined together from both metric extrusion and imperial channel strut…) DIN r... | 1,760,373,074.038082 |
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