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https://hackaday.com/2021/04/14/you-need-an-automated-overhead-camera-assistant/ | You Need An Automated Overhead Camera Assistant | Kristina Panos | [
"Arduino Hacks",
"how-to",
"Misc Hacks"
] | [
"arduino",
"arduino mega",
"camera assistant",
"camera slider",
"NEMA-17",
"stepper motor"
] | It’s 2021. Everyone and their mother is filming themselves doing stuff, and a lot of it is super cool content. But since most of us have to also work the video capture devices ourselves, it can be difficult to make compelling footage with a single, stationary overhead view, especially when there are a lot of steps invo... | 13 | 7 | [
{
"comment_id": "6339755",
"author": "Matt H",
"timestamp": "2021-04-14T16:21:58",
"content": "An opthalmascope is a hand held device used for examinig the retina. The big rigs at the eye doctor are the phoropter (with all the lenses, “better A or B”) and the slit lamp which is another eye examining... | 1,760,373,121.079119 | ||
https://hackaday.com/2021/04/14/magna-announces-simple-drive-solution-for-electric-pickup-trucks/ | Magna Announces Simple Drive Solution For Electric Pickup Trucks | Lewin Day | [
"car hacks",
"Featured",
"Interest",
"Slider"
] | [
"beam axle",
"car",
"car hacks",
"electric",
"electric car"
] | Thus far, the majority of electric cars on sale have been aimed at commuters, fitting into the sedan and SUV segments of the marketplace. Going forward, there’s a very real need for electrification to touch the whole spectrum of automobiles, and that includes work vehicles like pickup trucks. A company called Magna hav... | 68 | 32 | [
{
"comment_id": "6339715",
"author": "Steven-X",
"timestamp": "2021-04-14T14:16:11",
"content": "Many years ago I bought a book on creating your own electric vehicle. It’s recommendation was to convert a pickup truck.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,373,121.350156 | ||
https://hackaday.com/2021/04/14/gaming-with-1-horsepower-of-rumble-feedback/ | Gaming With 1 Horsepower Of Rumble Feedback | Lewin Day | [
"Misc Hacks"
] | [
"haptic feedback",
"rumble",
"rumble feedback",
"vibration"
] | Force feedback took off in a big way in the late 90s, bringing a sense of realism to flight sticks and racing wheels that hadn’t been there before. Its cheaper haptic cousin was rumble feedback via vibration motors, which does add
a little something
but it’s more an idea of a feeling than anything relevant to real life... | 14 | 11 | [
{
"comment_id": "6339679",
"author": "DonPavlov",
"timestamp": "2021-04-14T11:48:11",
"content": "Ah really love this guy. He also already did a nice solenoid keyboard feedback. Or a smaller variant with solenoid feedback on mouseclick.",
"parent_id": null,
"depth": 1,
"replies": []
},... | 1,760,373,121.474113 | ||
https://hackaday.com/2021/04/14/sanity-check-your-engines-with-this-dynamometer/ | Sanity Check Your Engines With This Dynamometer | Sonya Vasquez | [
"Misc Hacks",
"Robots Hacks",
"Tool Hacks"
] | [
"dynamometer",
"prony brake",
"torque meter"
] | As you get ready to pop the hood of your RC car to drop in a motor upgrade, have you ever wondered how much torque you’re getting from these small devices? Sure, we might just look up the motor specs, but why trust the manufacturer with such matters that you could otherwise measure yourself? [JohnnyQ90] did just that, ... | 2 | 1 | [
{
"comment_id": "6339657",
"author": "G",
"timestamp": "2021-04-14T09:28:50",
"content": "It’s a cool build, and I’m glad he gets some recognition – I’ve been following him for quite a while, and there is a lot of interesting content.That being said, I think the article would be more interesting if ... | 1,760,373,120.973235 | ||
https://hackaday.com/2021/04/13/a-lot-of-effort-for-a-pi-laptop/ | A Lot Of Effort For A Pi Laptop | Bryan Cockfield | [
"Raspberry Pi"
] | [
"battery",
"circuit",
"junk",
"laptop",
"low voltage",
"parts bin",
"power bank",
"raspberry pi"
] | Building a Raspberry Pi laptop is not that uncommon. In fact, just a few clicks from any of the major electronics suppliers will have the parts needed for such a project speeding on their way to your house in no time at all. But [joekutz] holds the uncontroversial belief that the value in these parts has somewhat dimin... | 7 | 2 | [
{
"comment_id": "6339683",
"author": "Greg A",
"timestamp": "2021-04-14T12:24:26",
"content": "i can’t believe people put pis on batteries, given the thing is a heater even when it’s unloaded. there’s enough black box i don’t care to invest the effort to figure out why but it seems to me like the c... | 1,760,373,121.179113 | ||
https://hackaday.com/2021/04/13/treatment-triggers-teeth-to-thrive/ | Treatment Triggers Teeth To Thrive | Kristina Panos | [
"Medical Hacks",
"News"
] | [
"bone morphogenic protein",
"monoclonal antibody",
"monoclonal antibody treatment",
"teeth",
"tooth regeneration",
"USAG-1"
] | We humans like to think we’re pretty advanced, but we can’t regrow missing teeth in adulthood like sharks, alligators, and crocodiles. Once those pearly whites are gone, they’re gone for good, and we don’t even have a way to regenerate the protective enamel. However, this may not always be the case, because
scientists ... | 38 | 15 | [
{
"comment_id": "6339591",
"author": "Roadtripper",
"timestamp": "2021-04-14T02:12:58",
"content": "Cool, I can grow a new set of wire strippers.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6339594",
"author": "Greco",
"timestamp": "2021-0... | 1,760,373,121.42494 | ||
https://hackaday.com/2021/04/13/garage-door-controller-gets-the-iot-treatment/ | Garage Door Controller Gets The IoT Treatment | Anool Mahidharia | [
"hardware"
] | [
"automatic garage door opener",
"automation",
"BFT TIR 60-120",
"ESP8266",
"garage",
"garage door opener",
"home automation"
] | [TheStaticTurtle] built
a custom controller for automating his garage doors
. He wanted to retain the original physical button and RF remote control interfaces while adding a more modern wireless control accessible from his internet connected devices. Upgrading an old system is often a convoluted process of trial and e... | 23 | 11 | [
{
"comment_id": "6339570",
"author": "Anonymous",
"timestamp": "2021-04-14T00:14:06",
"content": "Nice if… you have reliable 24×7 internet, your garage is reasonably close to your router or you’re okay adding mesh, you don’t already have too many IOT devices on your LAN, your router and LAN are lock... | 1,760,373,121.13365 | ||
https://hackaday.com/2021/04/13/homebrew-risc-v-computer-has-beauty-and-brains/ | Homebrew RISC-V Computer Has Beauty And Brains | Tom Nardi | [
"computer hacks",
"hardware"
] | [
"discrete components",
"homebrew computer",
"RISC-V"
] | Building your own CPU is arguably the best way to truly wrap your head around how all those ones and zeros get flung around inside of a computer, but as you can probably imagine even a relatively simple processor takes an incredible amount of time and patience to put together. Plus, more often than not you’re then left... | 17 | 10 | [
{
"comment_id": "6339537",
"author": "nah!",
"timestamp": "2021-04-13T20:42:56",
"content": "ahh yes, the homebrew computer i totally understand the complexity of its inner workings. i did the homebrew computer building a lot in my life",
"parent_id": null,
"depth": 1,
"replies": []
},... | 1,760,373,121.03006 | ||
https://hackaday.com/2021/04/13/removable-extruder-pulls-out-the-stops-on-features/ | Removable Extruder Pulls Out The Stops On Features | Sonya Vasquez | [
"3d Printer hacks"
] | [
"3d printing",
"hotend",
"toolchanger"
] | For all of us fascinated with 3D printing, it’s easy to forget that 3D printer jams are an extra dimension of frustration to handle. Not to mention that our systems don’t really lend themselves well to being easily disassembled for experiments. For anyone longing for a simpler tune-up experience, you’re in luck. [Mihai... | 17 | 5 | [
{
"comment_id": "6339499",
"author": "Doktoreq",
"timestamp": "2021-04-13T19:02:13",
"content": "Hotend heater current and pogo pins aren’t a good combination in my opinion.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6339511",
"author": "fiddling... | 1,760,373,120.932506 | ||
https://hackaday.com/2021/04/13/teardown-linkimals-musical-moose/ | Teardown: Linkimals Musical Moose | Tom Nardi | [
"Hackaday Columns",
"Teardown",
"Toy Hacks"
] | [
"dissected anthropomorphic woodland creatures",
"fisher-price",
"mesh networking",
"radio control",
"toys"
] | Like so many consumer products these days, baby toys seem to get progressively more complex with each passing year. Despite the fact that the average toddler will more often than not be completely engrossed by a simple cardboard box, toy companies are apparently hell-bent on producing battery powered contraptions that ... | 23 | 11 | [
{
"comment_id": "6339466",
"author": "Hirudinea",
"timestamp": "2021-04-13T17:31:57",
"content": "Creepy networked singing robots? Isn’t this how Skynet started?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6339487",
"author": "blah test",
"timestamp... | 1,760,373,121.248647 | ||
https://hackaday.com/2021/04/13/new-hackadayu-classes-antenna-basics-raspberry-pi-pico-and-designing-complex-geometry/ | New HackadayU Classes: Antenna Basics, Raspberry Pi Pico, And Designing Complex Geometry | Mike Szczys | [
"Hackaday Columns",
"Misc Hacks"
] | [
"Antenna Design",
"classes",
"HackadayU",
"NURBS",
"Raspberry Pi Pico",
"RF Design",
"Rhino",
"rhino 3d modeling",
"rp2040"
] | Get ’em while they’re hot:
a new session of HackadayU
just opened with classes from three fantastic instructors and
seats are filling up fast
.
Introduction to Antenna Basics
— Instructor Karen Rucker teaches the fundamentals of antenna design as if it were your first year on-the-job. She’ll cover the common types of a... | 4 | 1 | [
{
"comment_id": "6339559",
"author": "𐂀 𐂅",
"timestamp": "2021-04-13T22:50:42",
"content": "For a FOSS alternative to Rhino etc. for “Designing with Complex Geometry” try Blender 3D and the Sverchok plugin. Just head over to YouTube and search for “Sverchok” to find a pile of amazing stuff. Sorry... | 1,760,373,121.513907 | ||
https://hackaday.com/2021/04/13/beam-powered-ball-flinging-beam-has-us-beaming/ | BEAM-Powered, Ball-Flinging Beam Has Us Beaming | Kristina Panos | [
"classic hacks",
"Solar Hacks"
] | [
"ball bearing",
"beam",
"marble machine",
"solar panel",
"solar power",
"solenoid"
] | We have a soft spot for BEAM projects, because we love to see the Sun do fun things when aided by large capacitors.
[NanoRobotGeek]’s marble machine is an extraordinary example
— once sufficiently charged, the two 4700 μF capacitors dump power into a home-brew solenoid, which catapults the ball bearing into action towa... | 3 | 2 | [
{
"comment_id": "6339426",
"author": "mark g",
"timestamp": "2021-04-13T16:18:45",
"content": "Extremely well presented. The tracks have enough complexity to be interesting without so much going on that it distracts from the electronics and the catapult. Very balanced design.",
"parent_id": null... | 1,760,373,121.746625 | ||
https://hackaday.com/2021/04/12/eyecam-is-watching-you-in-between-blinks/ | Eyecam Is Watching You In Between Blinks | Kristina Panos | [
"Arduino Hacks",
"Art",
"Video Hacks"
] | [
"arduino",
"arduino nano",
"Raspberry pi camera",
"Raspberry Pi Zero",
"servo",
"web cam"
] | We will be the first to admit that it’s often hard to be productive while working from home, especially if no one’s ever really looking over your shoulder. Well, here is one creepy way to feel as though someone is keeping an eye on you, if that’s what gets you to straighten up and fly right.
The Eyecam research project... | 15 | 8 | [
{
"comment_id": "6339113",
"author": "Gravis",
"timestamp": "2021-04-12T19:02:48",
"content": "And the Creepy Computing Award goes to… Eyecam!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6339319",
"author": "Inhibit",
"timestamp": "2021-04... | 1,760,373,122.020541 | ||
https://hackaday.com/2021/04/12/zinc-fever-a-look-at-the-risks-of-working-with-hot-metal/ | Zinc Fever: A Look At The Risks Of Working With Hot Metal | Dan Maloney | [
"Hackaday Columns",
"Interest",
"Medical Hacks",
"Original Art",
"Slider"
] | [
"cytokine",
"health and safety",
"metal fume fever",
"metallothionein",
"metalwork",
"respirator",
"welding",
"zinc"
] | For as raucous as things can get in the comments section of Hackaday articles, we really love the give and take that happens there. Our readers have an astonishing breadth of backgrounds and experiences, and the fact that everyone so readily shares those experiences and the strongly held opinions that they engender is ... | 69 | 21 | [
{
"comment_id": "6339087",
"author": "BobH",
"timestamp": "2021-04-12T17:15:01",
"content": "Good write-up, thanks! When I weld galvanized stuff, I try to grind off the galvanizing a couple of inches back from the weld area and always do it outside. Grinding the galvanizing off is important (in addi... | 1,760,373,121.964109 | ||
https://hackaday.com/2021/04/12/inside-smart-meters-hack-chat/ | Inside Smart Meters Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"electric",
"grid",
"Hack Chat",
"mesh network",
"reverse engineering",
"smart meters",
"utility"
] | Join us on Wednesday, April 14 at noon Pacific for the
Inside Smart Meters Hack Chat
with [Hash]!
That electrical meter on the side of your house might not look like it, but it’s pretty packed with technology. What was once a simple electromechanical device that a human would have to read in person is now a node on a f... | 39 | 12 | [
{
"comment_id": "6339063",
"author": "Ostracus",
"timestamp": "2021-04-12T16:07:24",
"content": "“Not only does your meter total up the amount of electricity you use, but it also talks to other meters in the neighborhood, sending data skipping across town to routers that you might never have noticed... | 1,760,373,122.170284 | ||
https://hackaday.com/2021/04/12/sixty-years-ago-today-yuri-gagarin-becomes-the-first-human-in-space/ | Sixty Years Ago Today: Yuri Gagarin Becomes The First Human In Space | Jenny List | [
"Space"
] | [
"CCCP",
"Gagarin",
"USSR",
"Vostok"
] | As those of us with an interest in space exploration look forward with excitement towards new Lunar and Martian exploration, it’s worth casting our minds back for a moment because today marks a special anniversary. Sixty years ago
on April 12th 1961, the Vostok 1 craft with its pilot Yuri Gagarin was launched from the ... | 17 | 8 | [
{
"comment_id": "6339060",
"author": "Aashwinshanker",
"timestamp": "2021-04-12T15:58:06",
"content": "It marked the commencement of a new era of opportunities and troubles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6339070",
"author": "merlino1976",
... | 1,760,373,122.085434 | ||
https://hackaday.com/2021/04/12/microleds-lighting-the-way-to-a-solid-oled-competitor/ | MicroLEDs: Lighting The Way To A Solid OLED Competitor | Maya Posch | [
"Hackaday Columns",
"hardware",
"home entertainment hacks",
"LED Hacks",
"Slider"
] | [
"crt",
"display",
"lcd",
"MicroLED",
"panel",
"technology",
"tv"
] | We’re accustomed to seeing giant LED-powered screens in sports venues and outdoor displays. What would it take to bring this same technology into your living room? Very, very tiny LEDs. MicroLEDs.
MicroLED screens have been rumored to be around the corner for almost a decade now, which means that the time is almost rig... | 59 | 14 | [
{
"comment_id": "6339033",
"author": "DainBramage",
"timestamp": "2021-04-12T14:28:37",
"content": "That does sound promising, and is an idea that I had never considered. If the microLEDs are anywhere near as robust as the epoxy coated ones we’re all used to seeing, these displays could last darn ne... | 1,760,373,122.531196 | ||
https://hackaday.com/2021/04/12/exhuming-an-ancient-game-from-a-government-warehouse/ | Exhuming An Ancient Game From A Government Warehouse | Jenny List | [
"Games",
"Software Hacks"
] | [
"castlequest",
"digitla archaeology",
"text adventure"
] | Many readers will be familiar with the final scene of
Raiders Of The Lost Ark
, in which the Ark of the Covenant, having been retrieved by Indiana Jones, is placed in a crate and wheeled off to be lost in the seemingly infinite depths of a dusty Government warehouse. Who knows what treasures lurk in such fabled taxpaye... | 21 | 6 | [
{
"comment_id": "6338989",
"author": "David Given",
"timestamp": "2021-04-12T11:22:31",
"content": "“The code remains copyrighted as an important part of its story…”_Everything_ is copyrighted, except where explicitly put into the public domain! What this code is lacking is a license, meaning you ca... | 1,760,373,122.298201 | ||
https://hackaday.com/2021/04/12/playing-the-interview-game/ | Playing The Interview Game | Matthew Carlson | [
"Games",
"Lifehacks",
"Software Development"
] | [
"factorio",
"interview",
"Software Engineering",
"technical interview"
] | Technical interviews are generally dreaded, just like every other interview. However, technical interviews include many elements that non-technical folks might find mystifying or even pointless, such as whiteboard problem solving, take-home assignments, design sessions, or even just straight brain teasers. [Erik McClur... | 37 | 15 | [
{
"comment_id": "6338966",
"author": "Erin",
"timestamp": "2021-04-12T08:41:04",
"content": "I didn’t notice it brought up as I skimmed the article, but an 8 to 20 hour long interview had better include pay. I even like playing Factorio, but spending half a working week playing it as a test sounds ... | 1,760,373,122.243342 | ||
https://hackaday.com/2021/04/11/high-current-measurement-probe-for-oscilloscopes/ | High Current Measurement Probe For Oscilloscopes | Anool Mahidharia | [
"hardware",
"Tool Hacks"
] | [
"ACS730",
"AD823ARZ",
"alternating current",
"current",
"current measurement",
"current meter",
"current sensor",
"direct current",
"MCP73831",
"TPS65133"
] | A decent current measurement sensor ought to be an essential part of every hacker’s workbench. One that is capable of measuring DC, as well as low and high frequencies with reasonable accuracy. And bonus credits if it can also withstand high bus voltages – such as those found in mains utility or electric vehicle work. ... | 22 | 10 | [
{
"comment_id": "6338933",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-04-12T05:13:01",
"content": "Nice one, thanks for posting :-)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338937",
"author": "ROB",
"timestamp": "2021-... | 1,760,373,122.429779 | ||
https://hackaday.com/2021/04/11/led-brightness-adjustment-uses-itself-as-sensor/ | LED Brightness Adjustment Uses Itself As Sensor | Donald Papp | [
"LED Hacks",
"Parts"
] | [
"fail of the week",
"led",
"led sensor",
"light sensor"
] | This is a story about a successful system that nevertheless failed to make the cut. An
experimental LED brightness adjustment
is something [Mitxela] explored in a project for a high-precision clock; one that shows time down to the nearest millisecond, and won’t flicker or otherwise look weird when photographed with a h... | 16 | 8 | [
{
"comment_id": "6338914",
"author": "YGDES",
"timestamp": "2021-04-12T02:09:08",
"content": "Oh and LED can also serve as “varicap” diodes as well, thanks to their large/wide junction.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6339025",
"author... | 1,760,373,122.359707 | ||
https://hackaday.com/2021/04/11/hackaday-links-april-11-2021/ | Hackaday Links: April 11, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"bitcoin",
"drone",
"hackaday links",
"helicopter",
"Ingenuity",
"IoT",
"mars",
"methane",
"prop",
"sci-fi",
"tricorder",
"uav",
"volumetric"
] | Bad news, Martian helicopter fans: Ingenuity, the autonomous helicopter that Perseverance birthed onto the Martian surface a few days ago,
will not be taking the first powered, controlled flight on another planet today as planned
. We’re working on a full story so we’ll leave the gory details for that, but the short ve... | 30 | 10 | [
{
"comment_id": "6338885",
"author": "Jonathan Bennett",
"timestamp": "2021-04-11T23:09:05",
"content": "“Effluent” and “garrulous” were both obscure enough to force me to research their definitions. I’m sure your wordcraft annoys a handful of readers who want HaD to read like an instruction manual,... | 1,760,373,122.596895 | ||
https://hackaday.com/2021/04/11/solar-stevenson-screen-for-smart-sprinkler/ | Solar Stevenson Screen For Smart Sprinkler | Bob Baddeley | [
"green hacks",
"hardware"
] | [
"automated plant care",
"capacitive sensor",
"ESP8266",
"home automation",
"moisture sensor",
"soil moisture sensor",
"soil sensor"
] | It’s not infrequent that we see the combination of moisture sensors and water pumps to automate plant maintenance. Each one has a unique take on the idea, though, and solves problems in ways that could be useful for other applications as well. [Emiliano Valencia] approached the project with a few notable technologies w... | 1 | 1 | [
{
"comment_id": "6344725",
"author": "Nick",
"timestamp": "2021-04-30T23:56:16",
"content": "I assume that hexagonal perforation would prevent some of the bugs… But yeah it will probably still need cleaning eventually. Commercial setups have the same issue, and it’s not like you can completely seal ... | 1,760,373,122.638319 | ||
https://hackaday.com/2021/04/11/keep-coffee-warm-through-induction-heating/ | Keep Coffee Warm Through Induction Heating | Bryan Cockfield | [
"cooking hacks"
] | [
"coffee",
"frequency",
"heater",
"induction",
"metal",
"mug",
"resonance",
"square wave",
"transformer"
] | Transformers have an obvious use for increasing or decreasing the voltage in AC systems, but they have many other esoteric uses as well. Electric motors and generators are functionally similar and can be modeled as if they are transformers, but the truly interesting applications are outside these industrial settings. W... | 13 | 6 | [
{
"comment_id": "6338845",
"author": "Sailingfree",
"timestamp": "2021-04-11T18:17:31",
"content": "I remember my father in the early 70s coming home with his latest creation from work and getting my mum to test boiling milk in an iron saucepan. Very easy to control the heat with the potentiometer. ... | 1,760,373,122.690222 | ||
https://hackaday.com/2021/04/11/the-dynamotor-simplified/ | The Dynamotor Simplified | Al Williams | [
"classic hacks"
] | [
"brushless motor",
"dynamotor",
"fan",
"generator",
"inverter",
"motor generator",
"pc fan",
"Robert Murray-Smith",
"rotary transformer"
] | [Robert Murray-Smith] doesn’t like the price of inverters to convert DC to AC. That led him to build a dynamotor, or what is sometimes called a motor-generator set. These devices are just DC motors driving a generator. Of course, motors can also be used as generators and [Robert] had a stack of brushless motors in the ... | 28 | 12 | [
{
"comment_id": "6338822",
"author": "tomás zerolo",
"timestamp": "2021-04-11T15:00:49",
"content": "Thing is, to drive the (fan) motor, you need that three-phase AC right away!What to do, what to do?Functional folks invented the fixpoint combinator for this. Or something.",
"parent_id": null,
... | 1,760,373,123.355823 | ||
https://hackaday.com/2021/04/11/a-fresh-e-ink-newspaper-delivered-every-morning/ | A Fresh E-Ink Newspaper Delivered Every Morning | Matthew Carlson | [
"home hacks"
] | [
"e-ink",
"e-ink display",
"eink",
"electronic paper",
"newspaper"
] | [Greg Raiz] recently set out to make it easy to read multiple newspapers in the morning over breakfast. Inspired by a similar project, he built an
e-ink newspaper that hangs on his wall, delivering fresh news every ten minutes.
The project started with a 32″ Visionect e-ink display configured as a thin client. With a b... | 28 | 11 | [
{
"comment_id": "6338806",
"author": "Thinkerer",
"timestamp": "2021-04-11T11:43:37",
"content": "$6,000 for the dev kit used here?Lovely idea (and clevery puffery in the video) but I think I’ll wait for whatever version of Moore’s Law works on spendy E-ink displays to do its thing for a while.https... | 1,760,373,123.140734 | ||
https://hackaday.com/2021/04/13/werent-we-supposed-to-live-in-plastic-houses-in-the-future/ | Weren’t We Supposed To Live In Plastic Houses In The Future? | Jenny List | [
"Featured",
"History",
"home hacks",
"Slider"
] | [
"fibreglass",
"futurism",
"futuro",
"plastic",
"plastic house"
] | Futurism is dead. At least, the wildly optimistic technology-based futurism of the middle years of the 20th century has been replaced in our version of their future by a much more pessimistic model of environmental challenges and economic woes. No longer will our flying cars take us from our space-age wonder-homes to t... | 117 | 36 | [
{
"comment_id": "6339361",
"author": "Dude",
"timestamp": "2021-04-13T14:32:59",
"content": "There’s a reason plastic houses never caught on, and that was discovered in the 70’s – though not immediately. The oil crisis brought the first wave of energy efficient housing, and they solved the problem b... | 1,760,373,123.293211 | ||
https://hackaday.com/2021/04/13/an-rp2040-board-designed-for-machine-learning/ | An RP2040 Board Designed For Machine Learning | Lewin Day | [
"Microcontrollers",
"Raspberry Pi"
] | [
"machine learning",
"pico",
"raspberry pi",
"Raspberry Pi Pico",
"rp2040",
"TinyML"
] | Machine learning (ML) typically conjures up ideas of fancy code requiring oodles of storage and tons of processing power. However, there are some ML models that, once trained, can readily be run on much more spartan hardware – even a microcontroller! The RP2040, star of the Raspberry Pi Pico, is one such chip up to the... | 30 | 11 | [
{
"comment_id": "6339310",
"author": "Bike Forever",
"timestamp": "2021-04-13T11:48:30",
"content": "After a spider incident yesterday I’d like a spider tracking robot. Visual tracking and then feed back so we know where is safe.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,373,122.967927 | ||
https://hackaday.com/2021/04/13/alien-art-drawn-with-surprisingly-simple-math/ | Alien Art Drawn With Surprisingly Simple Math | Michael Shaub | [
"Misc Hacks"
] | [
"bit math",
"computer graphics",
"html5",
"javascript",
"math",
"pixel art"
] | Programmer [aemkei]
Tweeted the formula
(x ^ y) % 9
alongside code for more “alien art”
. But how can a formula as simple as
(x ^ y) % 9
result in a complex design? The combination of Bitwise XOR (
^
) and Modulo (
%
) generate a repeating pattern that’s still complex enough to satisfy the eye, and it’s ok if that does... | 20 | 17 | [
{
"comment_id": "6339275",
"author": "Niklas",
"timestamp": "2021-04-13T08:04:22",
"content": "Very nice! That reminds me of “Algorithmic symphonies from one line of code”:http://countercomplex.blogspot.com/2011/10/algorithmic-symphonies-from-one-line-of.html(x ^ y) % 9 might also sound interesting ... | 1,760,373,123.415405 | ||
https://hackaday.com/2021/04/12/imaging-the-past-with-time-travel-rephotography/ | Imaging The Past With Time-Travel Rephotography | Adam Zeloof | [
"Machine Learning"
] | [
"artifical intelligence",
"film",
"neural network",
"photography",
"restore"
] | Have you ever noticed that people in old photographs looks a bit weird? Deep wrinkles, sunken cheeks, and exaggerated blemishes are commonplace in photos taken up to the early 20th century. Surely not
everybody
looked like this, right? Maybe it was an odd makeup trend — was it just a fashionable look back then?
Not qui... | 49 | 14 | [
{
"comment_id": "6339240",
"author": "macsimski",
"timestamp": "2021-04-13T05:19:23",
"content": "It’s not restoring as the info never was there in the first place. Now this is called enhancing!The fun fact is AI predicts color, but from paintings and the few remaining autochrome pictures we know th... | 1,760,373,123.56448 | ||
https://hackaday.com/2021/04/12/why-pendulums-sync-up-and-other-mysteries-explained/ | Why Pendulums Sync Up, And Other Mysteries Explained | Lewin Day | [
"Science"
] | [
"Clocks",
"Huygens",
"metronome",
"physics",
"synchronisation"
] | If you’ve ever seen fireflies flashing together at night, you’ve witnessed the glory of synchronisation. In a new video,
[Veritasium] examines some of the mechanisms in nature that help create order out of chaos.
The story begins back in 1665, when [Christiaan Huygens] discovered that two pendulum clocks hanging from t... | 6 | 5 | [
{
"comment_id": "6339228",
"author": "Not Busted.",
"timestamp": "2021-04-13T03:19:20",
"content": "Myth confirmed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6339242",
"author": "Feinfinger (M-x totally-tame-mode)",
"timestamp": "2021-04-13T05:33:... | 1,760,373,123.610551 | ||
https://hackaday.com/2021/04/12/space-shuttle-program-40th-anniversary-of-the-first-launch-of-columbia/ | Space Shuttle Program: 40th Anniversary Of The First Launch Of Columbia | Dan Maloney | [
"Current Events",
"Featured",
"News",
"Slider"
] | [
"Coumbia",
"Crippen",
"nasa",
"orbiter",
"Space Shuttle",
"spaceflight",
"STS-1",
"Young"
] | For those who grew up watching the endless coverage of the Apollo program in the 60s and 70s, the sight of OV-102, better known as the Space Shuttle Columbia, perched on pad 39A at the Kennedy Space Center was somewhat disconcerting. Compared to the sleek lines of a Saturn V rocket, the spacecraft on display on April 1... | 19 | 9 | [
{
"comment_id": "6339219",
"author": "Daryl Baker",
"timestamp": "2021-04-13T01:35:31",
"content": "I remember this as clear as yesterday, not the actual launch but the scrubbed attempt on the 10th.I was 11 and school was 5 minutes away, back then you could go home for lunch, great I thought go home... | 1,760,373,123.478194 | ||
https://hackaday.com/2021/04/12/queen-victorias-secret-teletype-and-cosmac-elf/ | Queen Victoria’s Secret (Teletype And COSMAC Elf) | Al Williams | [
"Retrocomputing"
] | [
"1802",
"cosmac",
"cosmac elf",
"retrocomputing",
"steampunk",
"vintage computer"
] | We don’t really think anyone in the Victorian era had a COSMAC Elf — the homebrew computer based around the RCA 1802 CPU. But if they did, it might have looked like [Daniel Ross’]
steampunk recreation of the system that includes an appropriate-looking teletype device
. You can see the thing in a series of videos, below... | 15 | 9 | [
{
"comment_id": "6339187",
"author": "chris snyder",
"timestamp": "2021-04-12T22:40:55",
"content": "LOLO the Cosmac elf ( RCA 1802) the fist microprocessor I ever encountered, One of th3e electronics mags had a build project and a friend of mine got a development kit when we were both in the Navy. ... | 1,760,373,123.659493 | ||
https://hackaday.com/2021/04/10/the-last-days-of-the-wild-west/ | The Last Days Of The Wild West | Elliot Williams | [
"Hackaday Columns",
"Radio Hacks",
"Rants",
"Space"
] | [
"eavesdropping",
"Falcon 9",
"newsletter",
"sdr",
"SpaceX"
] | We loved it a few weeks ago when an international team of
hackers managed to record and decode telemetry and images from SpaceX launches
. And now it looks like
SpaceX has started encrypting it all
in response. Booo!
Decoding satellite and other space ship transmissions has been a great hacker pastime. Most recently, w... | 21 | 8 | [
{
"comment_id": "6338699",
"author": "RW ver 0.0.3",
"timestamp": "2021-04-10T17:25:14",
"content": "Shout out to some of the pioneers of this…http://www.zarya.info/Kettering/Kettering.php",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338701",
"aut... | 1,760,373,123.722423 | ||
https://hackaday.com/2021/04/10/newest-playstation-exploit-skips-the-disc/ | Newest PlayStation Exploit Skips The Disc | Tom Nardi | [
"Playstation Hacks",
"Software Hacks"
] | [
"exploit",
"loader",
"playstation",
"psx",
"sony"
] | Last month we brought you word of tonyhax, a clever exploit for the original Sony PlayStation that leveraged a buffer overflow in several of the games from the
Tony Hawk Pro Skater
series to load arbitrary code from a specially prepared memory card. But now [Bradlin] has taken that idea a step further and
developed a s... | 17 | 4 | [
{
"comment_id": "6338658",
"author": "Alex Rossie",
"timestamp": "2021-04-10T13:21:53",
"content": "I think I called this in the comments to the original tonyhax.FreeMcBoot was a revolution for PS2 home brew hopefully it has the same effect on PSX.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,373,123.776163 | ||
https://hackaday.com/2021/04/10/dynamic-build-platforms-for-3d-printers-remove-supports-and-save-material/ | Dynamic Build Platforms For 3D Printers Remove Supports And Save Material | Bob Baddeley | [
"3d Printer hacks"
] | [
"3d printer",
"3d printing",
"3d printing techniques"
] | We’re all too familiar with the 3D printing post-processing step of removing supports, and lamenting the waste of plastic on yet another dwindling reel of filament. When the material is expensive NinjaFlex or exotic bio-printers, printing support is downright painful. A group at USC has come up with a novel way of sign... | 31 | 14 | [
{
"comment_id": "6338637",
"author": "Arthur Wolf",
"timestamp": "2021-04-10T11:13:24",
"content": "It would be pretty easy to do this without needing to pre-set tubes of various lenghts under the bed:Instead of a grid of tubes, have a grid of (very fine pitch) threaded rod, with a pair of magnets a... | 1,760,373,123.848519 | ||
https://hackaday.com/2021/04/10/nasas-lucy-stretches-its-wings-ahead-of-trojan-trek/ | NASA’s Lucy Stretches Its Wings Ahead Of Trojan Trek | Zach Zeman | [
"Space"
] | [
"asteroid",
"Jupiter",
"nasa",
"solar panels",
"solar power",
"space exploration",
"spacecraft"
] | The good news about using solar power to explore space is there are no clouds to block your sunlight. Some dust and debris, yes, but nowhere near what we have to deal with on planets. The bad news is, as you wander further and further out in the solar system, your panels capture less and less of the sunlight you need f... | 4 | 1 | [
{
"comment_id": "6338634",
"author": "Truth",
"timestamp": "2021-04-10T10:39:27",
"content": "Surely this is once instance where smaller would be better. Being a 7.3 meters (24 feet) target for debris has to be an undesirable feature. Or would going nuclear with a 500+ watt Radioisotope Thermoelectr... | 1,760,373,124.198616 | ||
https://hackaday.com/2021/04/09/kerbal-space-program-goes-to-the-movies-in-stowaway/ | Kerbal Space Program Goes To The Movies InStowaway | Tom Nardi | [
"Games",
"Space"
] | [
"kerbal space program",
"ksp",
"mars",
"movie",
"orbital mechanics",
"sci-fi"
] | Fans of the lusciously voiced space aficionado [Scott Manley] will know he often uses Kerbal Space Program (KSP) in his videos to knock together simple demonstrations of blindingly complex topics such as orbital mechanics.
But as revealed in one of his recent videos
, YouTube isn’t the only place where his KSP craft ca... | 14 | 3 | [
{
"comment_id": "6338615",
"author": "Cuvtixo D",
"timestamp": "2021-04-10T07:01:11",
"content": "I take exception to “nobody wants to go there”! That linked article explains “At an altitude of approximately 50 kilometers, conditions inside the Venusian atmosphere… (are) almost identical to surface-... | 1,760,373,124.048626 | ||
https://hackaday.com/2021/04/09/engineering-the-less-boring-way/ | Engineering The Less Boring Way | Al Williams | [
"Tool Hacks"
] | [
"course",
"education",
"engineering",
"mechanical engineering",
"mechanics",
"statics",
"vector",
"vectors",
"youtube"
] | We have to admire a YouTube channel with the name [
Less Boring Lectures
]. After all, he isn’t promising they won’t be boring, just less boring. Actually though, we found quite a few of the videos pretty interesting and not boring at all. The channel features videos about mechanical engineering and related subjects li... | 6 | 4 | [
{
"comment_id": "6338632",
"author": "retiredJan",
"timestamp": "2021-04-10T10:35:07",
"content": "Nice refresh, long time from class (~50 years)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338633",
"author": "Pekka",
"timestamp": "2021-04-10T10:37... | 1,760,373,123.983188 | ||
https://hackaday.com/2021/04/09/laser-cut-solder-masks-from-business-cards/ | Laser-Cut Solder Masks From Business Cards | Bryan Cockfield | [
"Laser Hacks"
] | [
"business card",
"circuit board",
"Kapton",
"laser cutter",
"pcb",
"solder",
"solder mask"
] | There are plenty of ways to make printed circuit boards at home but for some features it’s still best to go to a board shop. Those features continue to decrease in number, but not a lot of people can build things such as a four-layer board at home. Adding a solder mask might be one of those features for some, but if yo... | 22 | 9 | [
{
"comment_id": "6338560",
"author": "Alexander Wikström",
"timestamp": "2021-04-09T23:24:40",
"content": "Another solder stencil material that is fairly perfect for small runs of a handful of boards is regular 80 gram paper.If one desires more thickness, there is thicker paper on the market too.Yes... | 1,760,373,124.259171 | ||
https://hackaday.com/2021/04/11/new-part-day-espressif-esp32-c6/ | New Part Day: Espressif ESP32-C6 Includes WiFi 6 And A RISC-V Core | Kerry Scharfglass | [
"Parts"
] | [
"ble",
"bluetooth",
"bluetooth 5",
"ESP32",
"ESP32-C6",
"ESP32-S3",
"espressif",
"New Part Day",
"wifi",
"WiFi 6"
] | If you’re a reader of Hackaday, then you’ve almost certainly encountered an Espressif part. The twin microcontroller families ESP8266 and ESP32 burst onto the scene and immediately became the budget-friendly microcontroller option for projects of all types. We’ve seen the line expand recently with the ESP32-C3 (packing... | 15 | 7 | [
{
"comment_id": "6338799",
"author": "Menno",
"timestamp": "2021-04-11T10:49:57",
"content": "I’m not so sure about the immediately in “immediately became the budget-friendly microcontroller option”.According to Wikipedia’s article onthe ESP8266:“The chip first came to the attention of Western maker... | 1,760,373,124.317857 | ||
https://hackaday.com/2021/04/11/learn-multirotors-from-first-principles/ | Learn Multirotors From First Principles | Jenny List | [
"drone hacks",
"Video Hacks"
] | [
"arduino",
"drone",
"multirotor"
] | Multirotors, or drones as they’re popularly called, are so ubiquitous as to have become a $10 toy. They’re no less fun to fly for it though, and learning how they work is no less fascinating. It’s something [Science Buddies] has addressed in
a series of videos examining them from first principles
. They may be aimed at... | 5 | 2 | [
{
"comment_id": "6338907",
"author": "Clovis Fritzen",
"timestamp": "2021-04-12T01:37:39",
"content": "Good stuff! starting from the principles is the way to go; ready-made quads are so cheap these days that nobody even cares about learing how to DIY one (really from scratch) anymore.",
"parent_... | 1,760,373,124.449136 | ||
https://hackaday.com/2021/04/10/camera-zero-looks-cool-runs-cool/ | Camera Zero Looks Cool, Runs Cool | Al Williams | [
"Raspberry Pi"
] | [
"arducam",
"camera",
"neopixel",
"neopixel ring"
] | Security cameras are a commodity item these days,
but that doesn’t mean [edgett’s] design using a Pi Zero
, an Arducam, an LED ring, and active cooling isn’t worth a look. This is a great example of how integrating some off-the-shelf modules and 3D printing can create very professional-looking results. There’s also a t... | 3 | 2 | [
{
"comment_id": "6338781",
"author": "BotherSaidPooh",
"timestamp": "2021-04-11T07:06:12",
"content": "Active cooling? Thats remarkable.I looked into using micro Peltiers from projectors and Macbook laptop components to make an astro-photography setup here but couldn’t find a used CCD cheaply enough... | 1,760,373,124.360374 | ||
https://hackaday.com/2021/04/10/scratch-built-robot-arm-looks-like-something-off-the-factory-floor/ | Scratch-Built Robot Arm Looks Like Something Off The Factory Floor | Dan Maloney | [
"Robots Hacks"
] | [
"AC servo",
"aluminum",
"arm",
"articulated",
"industrial",
"robot"
] | [Jeremy Fielding] is rightly impressed with the power and precision of industrial robot arms. The big arms that you see welding cars on assembly lines and the like are engineering feats in their own right, which is why his leap into scratch-building one in the home shop promises to be quite an adventure, and one we’re ... | 13 | 7 | [
{
"comment_id": "6338767",
"author": "Ostracus",
"timestamp": "2021-04-11T03:04:38",
"content": "I could see a fully robotized workshop.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338770",
"author": "ticktok",
"timestamp": "2021-04-11T03:39:50",
... | 1,760,373,124.406482 | ||
https://hackaday.com/2021/04/10/coffee-table-railroad-flips-to-hide-the-fun/ | Coffee Table Railroad Flips To Hide The Fun | Mike Szczys | [
"home hacks"
] | [
"coffee table",
"model railroad",
"model train",
"train"
] | The livingroom coffee table has long been a favorite realm of the model railroad. But what to do when you actually want to have coffee? [Peter Waldraff] has come up with a most eloquent answer to the problem by designing
a coffee table model railroad capable of turning the world upside down
.
This isn’t [Peter’s] first... | 13 | 8 | [
{
"comment_id": "6338757",
"author": "Ren",
"timestamp": "2021-04-11T00:08:26",
"content": "Great idea!I’ll link it to a Model Railroader forum.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338785",
"author": "Mark A.",
"timestamp": "2021-04-11T08:4... | 1,760,373,124.499999 | ||
https://hackaday.com/2021/04/10/antique-map-of-paris-with-modern-tech/ | Antique Map Of Paris With Modern Tech | Bryan Cockfield | [
"Art",
"Microcontrollers"
] | [
"antique",
"art",
"classic",
"ESP8266",
"lunar",
"map",
"moon",
"neopixel",
"Paris",
"solar",
"sun",
"tracking"
] | There’s plenty to love about antiques, from cars, furniture, to art. While it might be a little bit of survivorship bias, it’s easy to appreciate these older things for superior quality materials, craftsmanship, or even simplicity. They are missing out on all of our modern technology, though, so performing “restomods” ... | 7 | 6 | [
{
"comment_id": "6338736",
"author": "Gregg Eshelman",
"timestamp": "2021-04-10T20:59:33",
"content": "Take a modern digital map and give it a Victorian era treatment. Then print it on translucent paper to overlay onto a display. Get realtime traffic and other relevant data to underlay the paper map... | 1,760,373,124.54702 | ||
https://hackaday.com/2021/04/10/orphaned-iot-sleep-tracker-resurrected-as-an-air-quality-monitor/ | Orphaned IoT Sleep Tracker Resurrected As An Air Quality Monitor | Anool Mahidharia | [
"home hacks",
"Repair Hacks"
] | [
"hack",
"hardware",
"hello sense",
"IoT",
"repair",
"sense"
] | If you have a Hello Sense sleep tracking device lying around somewhere in your drawer of discards, it can be brought back to life in a new avatar. Just follow [Alexander Gee]’s instructions to
resurrect the Hello Sense as an IoT air quality data-logger
.
In 2014, startup “Hello” introduced the
Sense, an IoT sleep track... | 9 | 3 | [
{
"comment_id": "6338694",
"author": "Ostracus",
"timestamp": "2021-04-10T17:08:19",
"content": "Were sleep trackers really any kind of useful? Seemed more like a fad.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338705",
"author": "Greg A",
... | 1,760,373,124.646195 | ||
https://hackaday.com/2021/04/09/uplink-system-for-high-altitude-balloons/ | Uplink System For High-Altitude Balloons | Maya Posch | [
"Radio Hacks"
] | [
"HAB",
"high altitude balloon",
"LoRa"
] | Most uses of high-altitude balloons are fairly simple: send balloon up, have it beam down measurements and images. While this is indeed straightforward, it is also very limiting. This is why [Dave Akerman] has been working on
adding to the HAB balloons
he regularly flies. This builds on the work [Dave] did back in 2015... | 10 | 2 | [
{
"comment_id": "6338517",
"author": "Bruce Perens K6BP",
"timestamp": "2021-04-09T20:10:02",
"content": "The use of encryption isn’t absolutely necessary to keep folks from “hijacking your baloons”. A command sent entirely in the clear, with a digital signature, would work every bit as well. This i... | 1,760,373,124.59133 | ||
https://hackaday.com/2021/04/09/hamster-goes-on-virtual-journey/ | Hamster Goes On Virtual Journey | Bryan Cockfield | [
"Virtual Reality"
] | [
"ESP32",
"exercise",
"hall effect",
"hamster",
"journey",
"mqtt",
"node.js",
"pet",
"raspberry pi",
"wheel"
] | Hamsters are great pets, especially for those with limited space or other resources. They are fun playful animals that are fairly easy to keep, and are entertaining to boot. [Kim]’s hamster, [Mr. Fluffbutt], certainly fits this mold as well but [Kim] wanted something a little beyond the confines of the habitat and exer... | 19 | 5 | [
{
"comment_id": "6338496",
"author": "CityZen",
"timestamp": "2021-04-09T18:37:42",
"content": "I was assuming that there would be a screen for the hamster to see the results of its journey. Disappointed.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "63385... | 1,760,373,124.804164 | ||
https://hackaday.com/2021/04/09/linux-fu-shell-script-file-embedding/ | Linux Fu: Shell Script File Embedding | Al Williams | [
"Featured",
"Linux Hacks",
"Skills"
] | [
"base64",
"bash",
"linux",
"Linux Fu",
"shell scripting",
"tar",
"tarball",
"uuencode"
] | You need to package up a bunch of files, send them somewhere, and do something with them at the destination. It isn’t an uncommon scenario. The obvious answer is to create an archive — a zip or tar file, maybe — and include a shell script that you have to tell the user to run after unpacking.
That may be obvious, but i... | 25 | 12 | [
{
"comment_id": "6338477",
"author": "adrian",
"timestamp": "2021-04-09T17:26:34",
"content": "Anybody else here that ran Minix back in the day, and applied megabytes of shar patches from Usenet when Tanenbaum released an update ?",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,124.959487 | ||
https://hackaday.com/2021/04/09/hackaday-podcast-113-python-switching-to-match-a-magnetic-dyno-a-flying-dino-and-a-spinning-sequencer/ | Hackaday Podcast 113: Python Switching To Match, A Magnetic Dyno, A Flying Dino, And A Spinning Sequencer | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Mike Szczys and Elliot Williams recap a week of great hacks. You won’t want to miss the dynamometer Leo Fernekes built to measure the power output of his Sterling engine, which is also DIY. In this age of lithium-powered multirotors, it’s nice to step back and appreciate a hand-built rubberband-powered... | 2 | 1 | [
{
"comment_id": "6340029",
"author": "Bryan",
"timestamp": "2021-04-15T15:33:24",
"content": "You describe the cassette head hack as being like a mellophone. What you’re thinking of is the mellotron. A mellophone is a wind instrument used mostly in marching bands.",
"parent_id": null,
"depth... | 1,760,373,126.693605 | ||
https://hackaday.com/2021/04/09/is-it-a-lawnmower-is-it-an-rpi-irc-server-its-both/ | Is It A Lawnmower? Is It An RPi IRC Server? It’s Both! | Maya Posch | [
"green hacks",
"Raspberry Pi",
"Tech Hacks"
] | [
"irc",
"lawnmower",
"undernet"
] | Although first presented to the world as an April 1st joke, [Jotun]’s
IRC-enabled lawnmower
began life as the result of casual bantering among folk on the Undernet IRC network. When the project worked out better than probably anyone could have expected, it was presented as the
Green Future of Undernet
on April 1st. Jok... | 10 | 5 | [
{
"comment_id": "6338455",
"author": "Ren",
"timestamp": "2021-04-09T16:32:58",
"content": "Oh good! The IRC doesn’t control the mower! (Yet)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338501",
"author": "Joel B",
"timestamp": "2021-04-0... | 1,760,373,127.115961 | ||
https://hackaday.com/2021/04/09/this-week-in-security-the-facebook-leak-the-youtube-leak-and-file-type-confusion/ | This Week In Security: The Facebook Leak, The YouTube Leak, And File Type Confusion | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks"
] | [
"apt",
"scraping",
"This Week in Security"
] | Facebook had a problem, way back in the simpler times that was 2019. Something like 533 million accounts had the cell phone number associated with the account leaked. It’s making security news this week, because
that database has now been released
for free in its entirety. The dataset consists of Facebook ID, cell numb... | 21 | 12 | [
{
"comment_id": "6338435",
"author": "Gravis",
"timestamp": "2021-04-09T14:49:21",
"content": "The answer to the Project Zero issue is simple: notify the “friendly” government in question when the exploit is discovered that you will be releasing the details on the vulnerability. While Project Zero ... | 1,760,373,126.570504 | ||
https://hackaday.com/2021/04/09/taking-a-peek-inside-the-newest-echo-show-10/ | Taking A Peek Inside The Newest Echo Show 10 | Tom Nardi | [
"home entertainment hacks",
"Teardown"
] | [
"Amazon Echo",
"Echo Show",
"teardown"
] | When Amazon released the original Echo, it was a pretty simple affair. Cylinder, some LEDs on top, done. Then they came out with the Echo Dot, which was basically the same thing, but shorter. It seemed like there was a pretty clear theme for awhile, but then at some point Amazon decided it would be a good idea to start... | 26 | 9 | [
{
"comment_id": "6338395",
"author": "Winston",
"timestamp": "2021-04-09T12:14:23",
"content": "https://pics.me.me/people-in-the-sikties-the-government-will-wiretap-your-home-18968906.png",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338404",
"author": "... | 1,760,373,127.060701 | ||
https://hackaday.com/2021/04/09/stepper-motors-quick-and-simple/ | Stepper Motors Quick And Simple | Chris Lott | [
"how-to"
] | [
"555",
"CUPL",
"GAL",
"pal",
"stepper motor",
"stepper motor controller"
] | If you want a simple and easy introduction to stepper motors, check out the [IMSAI Guy]’s short video where he
designs a very basic stepper motor controller
and packs in a lot of quick lessons along the way. (Embedded below.)
He first goes over the fundamentals of a stepper motor in a practical, hands-on approach, and ... | 37 | 7 | [
{
"comment_id": "6338363",
"author": "Mike Massen, Perth, Western Australia",
"timestamp": "2021-04-09T08:20:01",
"content": "Hmm, nice idea,Whats interesting is that with pass if time such as decades getting exposed to increasingly complex systems that it can be refreshing, cathartic and a reminder... | 1,760,373,127.195445 | ||
https://hackaday.com/2021/04/08/three-piece-cyberdeck-plays-the-role-of-military-computer-that-never-was/ | Three-Piece Cyberdeck Plays The Role Of Military Computer That Never Was | Dan Maloney | [
"Cyberdecks"
] | [
"cyberdeck",
"cyberpunk",
"mechanical keyboard",
"military",
"raspberry pi"
] | While we’re not at all sick of the cyberdeck movement yet, we do have to admit that some of the builds we see are starting to fall into categories that are beginning to seem a little familiar. The clamshell aesthetic comes to mind, but really, with spaces for a display and a keyboard, the form factor is pretty much a n... | 15 | 8 | [
{
"comment_id": "6338353",
"author": "Bop",
"timestamp": "2021-04-09T07:24:08",
"content": "This is too beautiful for this world.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338438",
"author": "geocrasher",
"timestamp": "2021-04-09T15:09:... | 1,760,373,126.956762 | ||
https://hackaday.com/2021/04/08/hacking-the-classroom/ | Hacking The Classroom | Al Williams | [
"Arduino Hacks"
] | [
"arduino",
"education",
"tinkercad"
] | With so many students attending class virtually these days, how can you give kids — or adults — some hands on experience with electronics projects? [Ben Finio] says you can by
moving your lab to the virtual world
using — of all things — Tinkercad. [Ben] should know something about a classroom since he is a lecturer at ... | 4 | 1 | [
{
"comment_id": "6338298",
"author": "Michael Black",
"timestamp": "2021-04-09T02:18:32",
"content": "“Hacking the classroom”?You move outside of it because your learning is outside of it. You start reading Scientific American and Carolina Scientific catalogs, or get interested in electronics. Thi... | 1,760,373,126.997862 | ||
https://hackaday.com/2021/04/08/someone-get-this-minimalist-wooden-pc-a-martini/ | Someone Get This Minimalist Wooden PC A Martini | Kristina Panos | [
"computer hacks"
] | [
"hairpin legs",
"mid-century",
"minimalism",
"minimalist",
"pc"
] | It’s interesting to imagine what computers may have looked like throughout different time periods that precede their portability or even their existence altogether. In the 1950s and ’60s, computers still filled entire rooms, but if the age of the PC had arrived earlier one is left to wonder what might a minimalist mid-... | 19 | 9 | [
{
"comment_id": "6338274",
"author": "Ren",
"timestamp": "2021-04-09T00:10:49",
"content": "Next the paisley polyester computer of the mid-1970s!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338281",
"author": "Michael Black",
"timestamp":... | 1,760,373,126.817477 | ||
https://hackaday.com/2021/04/08/an-open-source-smart-watch-youd-actually-wear/ | An Open Source Smart Watch You’d Actually Wear | Tom Nardi | [
"Microcontrollers",
"Wearable Hacks"
] | [
"3D printed enclosure",
"circular display",
"ESP32",
"smart watch",
"smartwatch"
] | We’ve seen a number of open source smart watches over the years, and while they’ve certainly been impressive from a technical standpoint, they often leave something to be desired in terms of fit and finish. Exposed PCBs and monochromatic OLED displays might be fine for a trip to the hackerspace, but it wouldn’t be our ... | 38 | 13 | [
{
"comment_id": "6338233",
"author": "Greg A",
"timestamp": "2021-04-08T20:47:43",
"content": "there are so many cheap watches now that i have to keep reminding myself that i don’t really want one. it’s too easy to remember how badly i wanted one before they were feasible! when i was a kid i loved... | 1,760,373,126.651301 | ||
https://hackaday.com/2021/04/08/cnc-chainsaw/ | CNC Chainsaw | Al Williams | [
"cnc hacks"
] | [
"chainsaw",
"cnc",
"robot arm"
] | You can spend a lot of time trying to think of a clever title for a post about a CNC chainsaw. But you’ll finally realize, what else can you say but “CNC Chainsaw?” [Stuff Made Here]
actually built such a beast
, and you can watch it go in the video embedded below. A custom chainsaw on a Tormach robotic arm. So it is m... | 29 | 16 | [
{
"comment_id": "6338198",
"author": "KBZ",
"timestamp": "2021-04-08T18:56:38",
"content": "Awesome project… XYZ PQR 👍",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338262",
"author": "Robot CRC Cutting",
"timestamp": "2021-04-08T22:39:52"... | 1,760,373,126.76087 | ||
https://hackaday.com/2021/04/08/electric-vehicle-1900s-style-new-leases-on-old-tech/ | Electric Vehicle 1900’s Style: New Leases On Old Tech | Al Williams | [
"chemistry hacks",
"Hackaday Columns"
] | [
"battery",
"edison",
"electric car",
"electric vehicle",
"nickel iron battery",
"thomas edison"
] | Excited about your new electric vehicle? Thomas Edison would be, too. He tried to produce electric vehicles for Ford around 1900. Petroleum-based vehicles dashed his dreams of the electric car, and the battery he wanted to use languished as a technological dead end. The batteries were long-lasting, sure, but they were ... | 69 | 23 | [
{
"comment_id": "6338152",
"author": "rok",
"timestamp": "2021-04-08T17:22:37",
"content": "and “electrolyze” / “electrolyzer” ?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338153",
"author": "Packrat",
"timestamp": "2021-04-08T17:22:56",
"cont... | 1,760,373,127.309016 | ||
https://hackaday.com/2021/04/07/harmonic-drive-uses-compliant-mechanism-to-slim-down/ | Harmonic Drive Uses Compliant Mechanism To Slim Down | Dan Maloney | [
"Misc Hacks",
"Robots Hacks"
] | [
"compliant mechanism",
"gear",
"harmonic",
"joint",
"power",
"reduction",
"robot",
"strain-wave",
"torque",
"transmission"
] | [Levi Janssen] has a secret: he doesn’t like harmonic drives. But rather than abandon the torque-amplifying transmission completely, he decided to see about
improving them using 3D-printed compliant mechanisms
.
For the uninitiated, harmonic drives, also known as strain-wave gears, are a compact, high-torque gearbox th... | 15 | 6 | [
{
"comment_id": "6337887",
"author": "Andy Pugh",
"timestamp": "2021-04-07T20:13:21",
"content": "There is another design (used in metal by Harmonic Drive LLC) that bypasses many of these issues.See this YouTube video for an example:https://youtu.be/IdfKre6zpEYIt works pretty well:https://youtu.be/J... | 1,760,373,127.36473 | ||
https://hackaday.com/2021/04/07/the-simplest-wind-turbine-is-the-most-satisfying/ | The Simplest Wind Turbine Is The Most Satisfying | Jenny List | [
"green hacks"
] | [
"treadmill motor",
"wind power",
"Wind turbine"
] | Sometimes there’s a satisfaction to be found not in the more complex projects but the simplest ones. We’ve featured wind turbines of all types here at Hackaday over the years, but
HowToLou’s one is probably one of the least sophisticated
. That notwithstanding, it does its job admirably, and provides a handy reminder o... | 37 | 13 | [
{
"comment_id": "6337854",
"author": "Largol1",
"timestamp": "2021-04-07T18:43:44",
"content": "Brillant :) Clever :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6338096",
"author": "Archy114",
"timestamp": "2021-04-08T14:05:57",
"... | 1,760,373,127.441085 | ||
https://hackaday.com/2021/04/07/field-guide-to-shipping-containers/ | Field Guide To Shipping Containers | Kristina Panos | [
"Featured",
"Interest",
"Original Art",
"Slider",
"Transportation Hacks"
] | [
"containerization",
"drum",
"flat rack",
"Malcom McLean",
"refrigerated container",
"shipping",
"shipping container",
"tank"
] | In the 1950s, trucking magnate
Malcom McLean
changed the world when he got frustrated enough with the speed of trucking and traffic to start a commercial shipping company in order to move goods up and down the eastern seaboard a little faster.
Within ten years, containers were standardized
, and the first international... | 94 | 28 | [
{
"comment_id": "6337828",
"author": "Ostracus",
"timestamp": "2021-04-07T17:26:56",
"content": "“The incident really highlights the fragility of the whole intermodal system and makes us wonder if anything will change.”Plans for building alternate canals.There’s also one use for containers not descr... | 1,760,373,128.285358 | ||
https://hackaday.com/2021/04/07/diving-into-the-details-of-keyboard-interfaces-at-the-gate-level/ | Diving Into The Details Of Keyboard Interfaces At The Gate-Level | Dan Maloney | [
"Retrocomputing"
] | [
"6502",
"Ben Eater",
"diy",
"interface",
"ps2"
] | Never doubt the value of a good teacher. Even if you know — or think you know — the material being presented, a good teacher can open your eyes to new ways of looking at things that will pay dividends you never expected.
That’s the feeling we got while watching [Ben Eater]’s latest video on
building a keyboard interfac... | 5 | 5 | [
{
"comment_id": "6337816",
"author": "CH",
"timestamp": "2021-04-07T16:37:24",
"content": "Very good video, his style is easy to follow. Using datasheets is nice although he does simplify the datasheet significantly if you are not familiar with them.",
"parent_id": null,
"depth": 1,
"rep... | 1,760,373,128.398917 | ||
https://hackaday.com/2021/04/07/review-what-on-earth-is-an-electromagnetic-radiation-tester-and-why-would-i-need-one/ | Review: What On Earth Is An Electromagnetic Radiation Tester And Why Would I Need One? | Jenny List | [
"Hackaday Columns",
"Reviews",
"Slider",
"Tool Hacks"
] | [
"electric field",
"EM radiation",
"magnetic field",
"teardown"
] | One of the joys of an itinerant existence comes in periodically being reunited with the fruits of various orders that were sent to hackerspaces or friends somewhere along the way. These anonymous parcels from afar hold an assortment of wonders, with the added element of anticipation that comes from forgetting exactly w... | 75 | 26 | [
{
"comment_id": "6337766",
"author": "Cyk",
"timestamp": "2021-04-07T14:11:48",
"content": "I’d put this in the same bin for brand-new garbage, that already contains the cheap PH meters, $20 oscilloscopes and $1 LiIon chargers.Also usable for smart home devices that come with horrendous security hol... | 1,760,373,128.068501 | ||
https://hackaday.com/2021/04/07/an-esp32-walkie-talkie-for-those-spy-radio-moments/ | AN ESP32 Walkie-Talkie, For Those Spy Radio Moments | Jenny List | [
"Radio Hacks"
] | [
"ESP-Now",
"ESP32",
"walkie talkie",
"wifi"
] | One of the most thrilling childhood toys for the adventurous 1970s or 1980s kid was probably the toy walkie-talkie. It didn’t matter that they were a very simple AM low-end-VHF radio with a range of about 500m and a Morse key of debatable utility, you could talk clandestinely with your friends, and be a more convincing... | 29 | 13 | [
{
"comment_id": "6337716",
"author": "anonymous",
"timestamp": "2021-04-07T11:10:51",
"content": "Hmmm. I wonder if this would work with one of the LoRa modules.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6337737",
"author": "trndr",
"tim... | 1,760,373,128.353806 | ||
https://hackaday.com/2021/04/07/soviet-axe-restoration-replace-or-repair/ | Soviet Axe Restoration: Replace Or Repair? | Kristina Panos | [
"Repair Hacks"
] | [
"distortion",
"Formanta Solo II",
"phaser",
"Soviet guitar"
] | What do you do with a cool-looking misfit guitar that has non-working built-in effects and some iffy design aspects? Do you try to fix it and keep it original, or do you gut it and strut your stuff with new bits from around the shop? This is the conundrum that [Tim Sway]
finds himself in with this late 70s/early 80s Fo... | 12 | 7 | [
{
"comment_id": "6337704",
"author": "daveboltman",
"timestamp": "2021-04-07T10:22:51",
"content": "Keep the original!!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337724",
"author": "John",
"timestamp": "2021-04-07T11:53:46",
"content": "If it... | 1,760,373,127.951909 | ||
https://hackaday.com/2021/04/08/18650-brings-esp8266-wifi-repeater-along-for-the-ride/ | 18650 Brings ESP8266 WiFi Repeater Along For The Ride | Tom Nardi | [
"Microcontrollers",
"Wireless Hacks"
] | [
"18650",
"ESP-01",
"ESP8266",
"TP4056",
"wifi repeater"
] | We’re truly fortunate to have so many incredible open source projects floating around on the Internet, since there’s almost always some prior art you can lean on. By combining bits and pieces from different projects, you can often save yourself a huge amount of time and effort. It’s just a matter of figuring out how al... | 30 | 10 | [
{
"comment_id": "6338125",
"author": "RW ver 0.0.3",
"timestamp": "2021-04-08T15:38:58",
"content": "If you wanted to implement this as a “throwie” to leave a breadcrumb trail of repeaters you weren’t sure you were going to get back again, you might want a cheaper battery. It came to my attention th... | 1,760,373,127.847959 | ||
https://hackaday.com/2021/04/08/code-your-own-twitch-chat-controls-for-robots-or-just-about-anything-else/ | Code Your Own Twitch Chat Controls For Robots — Or Just About Anything Else! | Lewin Day | [
"Featured",
"how-to",
"internet hacks",
"Original Art",
"Skills",
"Slider",
"Software Development"
] | [
"chatbot",
"python",
"twitch",
"twitch bot",
"twitch chat",
"twitch.tv"
] | Twitch Plays Pokemon
burst onto the then nascent livestreaming scene back in 2014, letting Twitch viewers take command of a Game Boy emulator running Pokemon Red via simple chat commands. Since then, the same concept has been applied to everything under the sun. Other video games, installing Linux, and even trading on ... | 4 | 2 | [
{
"comment_id": "6338098",
"author": "SPD",
"timestamp": "2021-04-08T14:08:58",
"content": "“What Will You Unleash on Twitch?”Twitch Plays Twitter…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6338228",
"author": "Stuart Longland",
"timestamp": "2021... | 1,760,373,127.894789 | ||
https://hackaday.com/2021/04/08/compute-module-4-nas-with-custom-carrier-board/ | Compute Module 4 NAS With Custom Carrier Board | Tom Nardi | [
"hardware",
"Raspberry Pi"
] | [
"3D printed enclosure",
"compute module 4",
"file server",
"nas",
"raspberry pi",
"sata"
] | At this point, we’ve seen more Raspberry Pi Network Attached Storage (NAS) builds than we can possibly count. The platform was never a particularly ideal choice for this task due to the fact it could only connect to drives over USB, but it was cheap and easy to work with, so folks made the best of it. But that all chan... | 20 | 6 | [
{
"comment_id": "6338062",
"author": "Foldi-One",
"timestamp": "2021-04-08T12:11:31",
"content": "Looks really good, I’ve been using an original small ram model B as a NAS (and server for other things too) since I got it, and its been very much adequate for the tiny user numbers mostly streaming our... | 1,760,373,128.462948 | ||
https://hackaday.com/2021/04/08/big-clive-hacks-led-bulbs-with-openscad/ | Big Clive Hacks LED Bulbs With OpenSCAD | Chris Lott | [
"home hacks",
"LED Hacks"
] | [
"bulb",
"Bulbshade",
"lamps",
"LED bulbs",
"LED fixture"
] | After accidentally crushing the plastic envelope on a cheap LED light bulb, [bigclivedotcom] figured out he could
make custom ones using OpenSCAD
in any shape he wants. He
previously hacked a bunch of these inexpensive LED bulbs
last month, discovering they all shared a similar circuit topology. All the ones he experim... | 11 | 6 | [
{
"comment_id": "6338077",
"author": "mt21",
"timestamp": "2021-04-08T13:18:48",
"content": "nice hack. I discovered as a side effect that “opaque” PLA/ABS is actually not so opaque when used as a lamp shade, so this can be sed for interesting effects, too.",
"parent_id": null,
"depth": 1,
... | 1,760,373,128.60815 | ||
https://hackaday.com/2021/04/07/fun-while-it-lasted-falcon-9-telemetry-now-encrypted/ | Fun While It Lasted, Falcon 9 Telemetry Now Encrypted | Tom Nardi | [
"News",
"Radio Hacks",
"Slider",
"Space"
] | [
"amateur radio",
"Decode",
"Falcon 9",
"SpaceX",
"telemetry"
] | A few weeks back we brought word that Reddit users [derekcz] and [Xerbot] had managed to receive the 2232.5 MHz telemetry downlink from a Falcon 9 upper stage and pull out some interesting plain-text strings. With further software fiddling, the vehicle’s video streams were decoded, resulting in some absolutely breathta... | 56 | 21 | [
{
"comment_id": "6337983",
"author": "Definitely not John",
"timestamp": "2021-04-08T05:18:17",
"content": "Double standards are the only standards. There are two sets of rules, one for the haves, one for the have nots. I’m all for starting up opensource space flight. Everyone who wants to go to spa... | 1,760,373,128.558646 | ||
https://hackaday.com/2021/04/07/hydraulics-made-simple/ | Hydraulics Made Simple | Al Williams | [
"Science"
] | [
"flow",
"hazen-williams equation",
"hydraulics",
"pipe",
"pipeline",
"pressure",
"reynolds number"
] | Corralling electrons is great and what most of us are pretty good at, but the best projects have some kind of interface to the real world. Often, that involves some sort of fluid such as water or air moving through pipes. If you don’t grasp hydraulics intuitively, [Practical Engineering] has a video you’ll enjoy. It ex... | 5 | 3 | [
{
"comment_id": "6337965",
"author": "Garth Bock",
"timestamp": "2021-04-08T02:48:16",
"content": "I remember an article in Popular Science magazine back in the 70’s on the subject of Fluidics… using a moving fluid (ie…air, water) to control external devices. The demonstrator in the article turned o... | 1,760,373,128.652129 | ||
https://hackaday.com/2021/04/07/shoot-above-the-waves-on-this-e-foil-made-from-a-rifle-case/ | Shoot Above The Waves On This E-Foil Made From A Rifle Case | Dan Maloney | [
"Misc Hacks",
"Transportation Hacks"
] | [
"BLDC",
"boat",
"e-foil",
"esc",
"hydrofoil",
"rifle case",
"surf",
"wing"
] | So you say you want to fly above the waves on an electric hydrofoil, but you don’t have the means to buy a commercial board. Or, you don’t have the time and skills needed to carve a board and outfit it with the motor and wing that let it glide above the water. Are you out of luck? Not if you follow
this hackworthy e-fo... | 17 | 6 | [
{
"comment_id": "6337942",
"author": "Arjan Wiegel",
"timestamp": "2021-04-07T23:52:09",
"content": "How on earth does balancing on such a board even work? Does it self-balance from left to right like a skate-board or bicycle? And how about the front to back rocking motion? Wouldn’t you simply fall?... | 1,760,373,128.70693 | ||
https://hackaday.com/2021/04/06/open-source-electric-vehicle-charging/ | Open Source Electric Vehicle Charging | Bryan Cockfield | [
"Transportation Hacks"
] | [
"arduino",
"car",
"charging",
"electric vehicle",
"ev",
"high voltage",
"IoT",
"nano",
"network",
"Nissan Leaf",
"web app"
] | Electric vehicles are becoming more and more common on the road, but when they’re parked in the driveway or garage there are still some kinks to work out when getting them charged up. Sure, there are plenty of charging stations on the market, but they all have different features, capabilities, and even ports, so to rea... | 26 | 4 | [
{
"comment_id": "6337470",
"author": "Nick",
"timestamp": "2021-04-06T15:09:32",
"content": "I was going to jump on this guy for not including a GFI in his design, but his project page does say he’s plugging into a GFI protected circuit.However, I also don’t see any GCM in his design, which is anoth... | 1,760,373,128.993884 | ||
https://hackaday.com/2021/04/06/death-of-the-turing-test-in-an-age-of-successful-ais/ | Death Of The Turing Test In An Age Of Successful AIs | Steven Dufresne | [
"Featured",
"Interest",
"Original Art",
"Slider"
] | [
"ai",
"alan turing",
"artifical intelligence",
"ibm project debater",
"ibm watson",
"neural network",
"speech recognition",
"turing test",
"watson"
] | IBM has come up with an automatic debating system called Project Debater that researches a topic, presents an argument, listens to a human rebuttal and formulates its own rebuttal. But does it pass the Turing test? Or does the Turing test matter anymore?
The Turing test was first introduced in 1950, often cited as year... | 98 | 15 | [
{
"comment_id": "6337444",
"author": "Pat",
"timestamp": "2021-04-06T14:15:32",
"content": "I still think the big problem with the Turing test is the basic idea that ahumanis the right tester. Humans are notoriously awful at constructing tests for themselves. We construct tests that ignore ahugeamou... | 1,760,373,129.57528 | ||
https://hackaday.com/2021/04/06/flight-of-the-pterothopter-a-jurassic-inspired-ornithopter/ | Flight Of The Pterothopter: A Jurassic-Inspired Ornithopter | Zach Zeman | [
"drone hacks",
"Misc Hacks"
] | [
"aircraft",
"aircraft design",
"balsa wood",
"model aircraft",
"ornithopter",
"rubber band"
] | Ornithopters look silly. They look like something that shouldn’t work. An airplane with no propeller and wings that go flappy-flappy? No way that thing is going to fly. There are, however, a multitude of hobbyists, researchers, and birds who would heartily disagree with that sentiment, because ornithopters do fly. And ... | 14 | 10 | [
{
"comment_id": "6337410",
"author": "Mr. Smooth",
"timestamp": "2021-04-06T11:25:58",
"content": "Wow. Beautiful!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337412",
"author": "Robert",
"timestamp": "2021-04-06T11:49:26",
"content": "“quick f... | 1,760,373,129.044473 | ||
https://hackaday.com/2021/04/06/you-otter-be-able-to-stream-that-audio-open-hardware-eclipses-chromecast-audio/ | You Otter Be Able To Stream That Audio: Open Hardware Eclipses Chromecast Audio | Kerry Scharfglass | [
"digital audio hacks",
"google hacks",
"hardware"
] | [
"airplay",
"analog audio",
"ARM Cortex-A7",
"audio",
"chromecast",
"chromecast audio",
"linux",
"pulseaudio",
"snapcast",
"spotify",
"streaming audio"
] | When Google halted production of the Chromecast Audio at the start of 2019, there was a (now silent) outcry. Fans of the device loved the single purpose audio streaming dongle that delivered wide compatibility and drop-dead simplicity at a rock bottom $35 price. For evidence of this, look no further than your favorite ... | 43 | 13 | [
{
"comment_id": "6337396",
"author": "Julian Silden Langlo",
"timestamp": "2021-04-06T08:58:46",
"content": "I notice that it has three audio jacks, do they all simply output the same audio or can they output different audio or even receive audio?",
"parent_id": null,
"depth": 1,
"replie... | 1,760,373,129.127079 | ||
https://hackaday.com/2021/04/05/arduino-plots-your-portrait-with-style/ | Arduino Plots Your Portrait With Style | Lewin Day | [
"Arduino Hacks"
] | [
"pen plotter",
"plotter",
"portrait painter"
] | Around these parts, we see plenty of plotter builds. They’re a great way to learn about CNC machines and you get to have fun making pictures along the way. [Ben Lucy] was undertaking just such a build of his own, but wanted to do something standalone that served a purpose.
The result is the impressive Portable Portrait... | 2 | 2 | [
{
"comment_id": "6337386",
"author": "Jan",
"timestamp": "2021-04-06T07:02:54",
"content": "Fun project and a very clean looking build.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337465",
"author": "Dave",
"timestamp": "2021-04-06T14:53:29",
"... | 1,760,373,128.926402 | ||
https://hackaday.com/2021/04/05/portable-telescope-rolls-anywhere/ | Portable Telescope Rolls Anywhere | Bryan Cockfield | [
"Space"
] | [
"adjustable",
"ball",
"diy",
"dobsonian",
"focal length",
"portable",
"telescope"
] | Since Galileo began observing celestial objects with a telescope, an almost uncountable number of improvements have been made to his designs and methods. Telescopes can now view anything from radio waves to gamma waves, come in a wide range of sizes and shapes, and some are also fairly accessible to hobbyists as well. ... | 12 | 5 | [
{
"comment_id": "6337389",
"author": "Konrad",
"timestamp": "2021-04-06T07:42:37",
"content": "Looks like a really clever way to build a mobile telescope. My experience is that after assembling telescope on site one needs to realign optical axis of prmary/secondary mirrors. I wonder how it’s done in... | 1,760,373,129.174347 | ||
https://hackaday.com/2021/04/05/tcam-mini-adding-wireless-to-flir-lepton-thermal-imaging-sensors/ | TCam-Mini: Adding Wireless To Flir Lepton Thermal Imaging Sensors | Maya Posch | [
"hardware"
] | [
"diy flir camera",
"Flir lepton",
"tcam-mini"
] | With how expensive thermal cameras are, why not build your own? This is the goal with which [Dan Julio] set out a while ago,
covering the project
in great detail. While the ultimate goal is to create a stand-alone solution, with its own screen, storage and processing, the TCam-Mini is an interesting platform. Using the... | 7 | 4 | [
{
"comment_id": "6337382",
"author": "Neil",
"timestamp": "2021-04-06T06:36:40",
"content": "Another good reason to build your own is that the official FLiR app crashes with older devices and when you report issues against it, you’ll get a reply that the older devices are unsupported.",
"parent_... | 1,760,373,129.228579 | ||
https://hackaday.com/2021/04/05/honey-i-shrunk-the-arduino-core/ | Honey, I Shrunk The Arduino Core | Bryan Cockfield | [
"Microcontrollers",
"Software Hacks"
] | [
"arduino",
"code",
"microcontroller",
"optimization"
] | High-level programming languages do a great job of making a programmer’s job easier, but these languages often leave a lot of efficiency on the table as a compromise. While a common thought is to move into a lower-level language like assembly to improve on a program’s speed or memory use, there’s often a lot that can b... | 69 | 17 | [
{
"comment_id": "6337146",
"author": "HatTipper",
"timestamp": "2021-04-05T09:06:47",
"content": "First and foremost: hats off to NerdRalph for the achievement!But then: how much money does one get back for the not used FlashROM space? And from who? ;-)",
"parent_id": null,
"depth": 1,
... | 1,760,373,129.679888 | ||
https://hackaday.com/2021/04/04/decoding-s-pdif-with-a-microcontroller-brings-a-few-headaches/ | Decoding S/PDIF With A Microcontroller Brings A Few Headaches | Lewin Day | [
"Misc Hacks"
] | [
"audio",
"digital audio",
"s/pdif",
"spdif"
] | The average punter shunts audio around with analog 3.5 mm cables, RCA jacks, or Bluetooth on a regular basis. A useful standard that hasn’t really bothered most of us is S/PDIF, standing for Sony/Phillips Digital Interface. It’s a useful way to pump digital audio around over copper cables or optic fiber. [Andrew Jeddel... | 14 | 5 | [
{
"comment_id": "6337136",
"author": "rok",
"timestamp": "2021-04-05T07:07:45",
"content": "Looks like a painful way to replace a CS8416",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6337222",
"author": "CW",
"timestamp": "2021-04-05T15:38:2... | 1,760,373,129.436291 | ||
https://hackaday.com/2021/04/04/a-magnetic-field-strength-meter-using-an-arduino/ | A Magnetic Field Strength Meter Using An Arduino | Jenny List | [
"Arduino Hacks"
] | [
"gauss meter",
"hall effect sensor",
"magnetic field meter"
] | We’re used to Hall effect devices as proximity sensors in mechanical systems, used to provide detection of something that has a magnet attached to it. However it’s easy to forget that the devices that provide a magnet-or-not digital output are only part of the story, and linear Hall effect devices provide a handy way t... | 7 | 4 | [
{
"comment_id": "6337114",
"author": "Ren",
"timestamp": "2021-04-05T03:02:09",
"content": "A Magnetic Field “streight” Meter?Is this something that should be on every workbench?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337119",
"author": "Wolf",
... | 1,760,373,129.270711 | ||
https://hackaday.com/2021/04/04/hackaday-links-april-4-2021/ | Hackaday Links: April 4, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"afterburner",
"Anatoli Bugorski",
"Chandra",
"emdrive",
"hackaday links",
"jet engine",
"magent wire",
"metalworking",
"particle physics",
"smd",
"Uranus",
"x-ray"
] | Can I just say that doing a links roundup article in a week that includes April Fool’s Day isn’t a fun job? Because it’s not. I mean, how can you take something like reports of
X-rays flowing from Uranus
seriously when they release the report on such a day? It sure looks like a legitimate story, though, and a pretty in... | 17 | 8 | [
{
"comment_id": "6337085",
"author": "Hirudinea",
"timestamp": "2021-04-04T23:53:31",
"content": "I’d heard of Bugorski before, but just off hand. I think that he should be thankful that his accident involved a laser tight beam firing through his head rather than full body radiation. Like Phineas Ga... | 1,760,373,129.738536 | ||
https://hackaday.com/2021/04/04/pocket-cheat-sheets-for-electronics/ | Pocket Cheat Sheets For Electronics | Chris Lott | [
"Tech Hacks"
] | [
"business cards",
"cheat sheet",
"PCB ruler"
] | What started as business cards for [Nerdonic]’s engineering clients unexpectedly expanded into a project in its own right. A
CheatKard
set consists of seven electronics cheat sheets made in the style of PCB rulers. Sized at 80 mm x 50 mm, they should fit in your business card holder or wallet regardless of the standard... | 39 | 10 | [
{
"comment_id": "6337044",
"author": "Eugene",
"timestamp": "2021-04-04T21:00:06",
"content": "They should at least correct the title card to be electronic engineering instead of electrical engineering, we’re not hanging high voltage wires on poles here.",
"parent_id": null,
"depth": 1,
... | 1,760,373,129.81737 | ||
https://hackaday.com/2021/04/04/a-big-ship-chop-shop-on-the-georgia-coast/ | A Big Ship Chop Shop On The Georgia Coast | Roger Cheng | [
"Transportation Hacks"
] | [
"cleanup",
"environmental cleanup",
"salvage",
"ship",
"shipping",
"ships",
"shipwreck",
"transportation",
"underwater"
] | Last week we saw a hapless container ship vaulted to fame, where people converged on its combination of mind-boggling size suffering an easily relatable problem of getting stuck. Now that it is moving again, armchair engineers who crave more big ship problem-solving should check out [David Tracy]’s
writeup on the salva... | 16 | 7 | [
{
"comment_id": "6336995",
"author": "James",
"timestamp": "2021-04-04T17:02:58",
"content": "Somehow I read that as a “big chip shop”. I must stop browsing HaD whilst cooking dinner.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337001",
"author": "wan... | 1,760,373,129.868581 | ||
https://hackaday.com/2021/04/04/cheat-at-cornhole-with-a-bazillion-dollar-robot/ | Cheat At Cornhole With A Bazillion-Dollar Robot | Bryan Cockfield | [
"Robots Hacks"
] | [
"computer vision",
"Cornhole",
"game",
"kr-20",
"KUKA",
"Nvidia Jetson",
"open cv",
"robot"
] | While the days of outdoor cookouts may be a few months away for most of us, that certainly leaves plenty of time to prepare for that moment. While some may spend that time perfecting recipies or doing various home improvement projects during their remaining isolation time, others are practicing their skills at the vari... | 19 | 5 | [
{
"comment_id": "6336962",
"author": "ScriptGiddy",
"timestamp": "2021-04-04T14:04:02",
"content": "Can anyone explain to me why this game is named corn hole?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6336963",
"author": "Ren",
"timestam... | 1,760,373,129.923217 | ||
https://hackaday.com/2021/04/06/fan-tastic-misuse-of-raspberry-pi-gpio/ | Fan-tastic Misuse Of Raspberry Pi GPIO | Stephen Ogier | [
"Wireless Hacks"
] | [
"ceiling fan",
"home automation",
"raspberry pi",
"rpitx",
"RTL-SDR",
"RTL2832U",
"smart home"
] | [River] is a big fan of home automation. After moving into a new house,
he wanted to assimilate two wirelessly controlled fan lights into his home automation system
. The problem was this: although the fans were wireless, their frequency and protocol were incompatible with the home automation system.
Step one was to de... | 36 | 15 | [
{
"comment_id": "6337669",
"author": "mime",
"timestamp": "2021-04-07T06:38:47",
"content": "I think this is very impressive, and I like that the article explains step by step how it was done.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337672",
"autho... | 1,760,373,129.992928 | ||
https://hackaday.com/2021/04/06/forgotten-tech-self-driving-cars/ | Forgotten Tech — Self Driving Cars | Chris Lott | [
"Retrocomputing",
"Tech Hacks"
] | [
"autonomous cars",
"self-driving",
"south korea"
] | The notion of self driving cars isn’t new. You might be surprised at the number of such projects dating back to the 1920s. Many of these systems relied on external aids built into the roadways. It’s only recently that self driving cars on existing roadways are becoming closer to reality than fiction — increased compute... | 29 | 9 | [
{
"comment_id": "6337658",
"author": "Mr Name Required",
"timestamp": "2021-04-07T04:32:02",
"content": "What happens with these self-driving cars if it encounters a vehicle with a stop sign, a zebra crossing, a person, an elephant, or perspective angled lines painted on the back?",
"parent_id":... | 1,760,373,130.061058 | ||
https://hackaday.com/2021/04/06/this-custom-dynanometer-is-a-sterling-example-of-homebrewing/ | This Custom Dynamometer Is A Stirling Example Of Homebrewing | Dan Maloney | [
"Misc Hacks"
] | [
"dynanometer",
"dyno",
"electrodynamic",
"pid",
"sensor",
"sterling engine",
"teansducer",
"torque"
] | [Leo Fernekes] has fallen down the Stirling engine rabbit hole. We mustn’t judge — things like this happen in the best of families, after all. And when they do happen to someone like [Leo],
things can get interesting mighty quickly
.
His current video, linked below, actually has precious little to do with his newfound ... | 25 | 8 | [
{
"comment_id": "6337620",
"author": "Anonymous Pedant",
"timestamp": "2021-04-06T23:04:36",
"content": "It’s a “Stirling” engine. And typically also a “dynamometer”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6337687",
"author": "Elliot Williams"... | 1,760,373,130.122076 | ||
https://hackaday.com/2021/04/06/iss-astronaut-shows-off-spacexs-stylish-spacesuit/ | ISS Astronaut Shows Off SpaceX’s Stylish Spacesuit | Tom Nardi | [
"Space"
] | [
"Crew Dragon",
"human spaceflight",
"spacesuit",
"SpaceX"
] | Beyond the fact that Hollywood costume designer Jose Fernandez was called in to develop its distinctively superhero look, SpaceX hasn’t released a lot of public information about their high-tech spacesuit. But thanks to Japanese astronaut [Soichi Noguchi], Mission Specialist on the first operational Crew Dragon flight ... | 15 | 7 | [
{
"comment_id": "6337601",
"author": "Tomino",
"timestamp": "2021-04-06T21:13:45",
"content": "Looks like Michael Jackson’s fancy drysuit with Bluetooth biking helmet attached :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337602",
"author": "rok",
... | 1,760,373,130.175656 | ||
https://hackaday.com/2021/04/06/raspberry-pi-spigot-puts-digits-of-pi-on-tap/ | Raspberry Pi Spigot Puts Digits Of Pi On Tap | Kristina Panos | [
"Holiday Hacks",
"Raspberry Pi"
] | [
"led matrix",
"leds",
"Pi",
"raspberry pi",
"spigot",
"spigot algorithm"
] | What did you do for Pi Day? Play with your Raspberry Pi 400? Eat some pizza or other typically round objects and recite all nine digits you’ve got memorized? That’s about where we were at this year. But not [bornach], no. [bornach] went all out and built
a spigot that spews digits of Pi
well past the first nine decimal... | 11 | 5 | [
{
"comment_id": "6337555",
"author": "Alex",
"timestamp": "2021-04-06T18:55:43",
"content": "Awesome build!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337609",
"author": "Conor Stewart",
"timestamp": "2021-04-06T21:43:18",
"content": "Cool pro... | 1,760,373,130.223136 | ||
https://hackaday.com/2021/04/06/mercedes-split-turbo-was-a-game-changer-in-formula-1/ | Mercedes Split Turbo Was A Game Changer In Formula 1 | Lewin Day | [
"car hacks",
"Engineering",
"Hackaday Columns",
"Slider"
] | [
"formula 1",
"mercedes",
"turbo",
"turbocharger"
] | In 2014, Formula 1 switched away from V8 engines, electing instead to mandate all teams race with turbocharged V6 engines of 1.6 litres displacement, fitted with advanced energy recovery systems. The aim was to return Formula 1 to having some vague notion of relevance to modern road car technologies, with a strong focu... | 40 | 12 | [
{
"comment_id": "6337522",
"author": "M",
"timestamp": "2021-04-06T17:14:45",
"content": "…and F1 has never been more boring!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6337532",
"author": "RBMK",
"timestamp": "2021-04-06T17:40:13",
... | 1,760,373,130.489512 | ||
https://hackaday.com/2021/04/06/bring-a-hack-is-back-this-thursday/ | Bring A Hack Is Back This Thursday! | Jenny List | [
"cons"
] | [
"Bring A Hack",
"pandemic",
"remote"
] | As the pandemic edges further into its second year, the tedium of life under lockdown is taking its toll. We may be fighting the spread of infection by staying home and having our meetings over video conferencing software, but it’s hellishly boring! What we wouldn’t do for our hackerspaces to be open, and for the chanc... | 4 | 3 | [
{
"comment_id": "6337516",
"author": "Ostracus",
"timestamp": "2021-04-06T16:46:05",
"content": "“As the pandemic edges further into its second year, the tedium of life under lockdown is taking its toll. We may be fighting the spread of infection by staying home and having our meetings over video co... | 1,760,373,130.263652 | ||
https://hackaday.com/2021/04/05/totally-useless-coffee-dispenser-is-anything-but/ | Totally Useless Coffee Dispenser Is Anything But | Kristina Panos | [
"Microcontrollers"
] | [
"coffee grounds",
"Micro:bit",
"stepper motor"
] | Good coffee is nice to have, sure, but frankly, caffeine is caffeine and we’ll take it any way we can get it. That includes freeze-dried, if that’s all you’ve got. We won’t judge anyone for their taste in caffeinated beverages, and
to call this coffee dispenser ‘totally useless’ is just patently untrue
. It clearly has... | 15 | 5 | [
{
"comment_id": "6337308",
"author": "bm",
"timestamp": "2021-04-05T20:42:38",
"content": "I think maybe that little stepper and driver is undersized for the torque required to turn the dispenser. Either find a beefier motor and driver or try relocating that stepper so it can mesh with a toothed cir... | 1,760,373,130.53942 | ||
https://hackaday.com/2021/04/05/music-production-studio-in-a-box/ | Music Production Studio In A Box | Stephen Ogier | [
"Musical Hacks"
] | [
"custom case",
"electronic music",
"synth"
] | [Emil Smith] is an electronic music producer in the Greater London area. He spent a lot of time commuting in and out of central London, so he decided to
put together COVERT-19, a portable music production studio.
After making a couple of prototypes, [Emil] settled on what he needed from his portable studio: a sampler, ... | 5 | 5 | [
{
"comment_id": "6337312",
"author": "wanderer_",
"timestamp": "2021-04-05T20:49:55",
"content": "His first soldering iron! This is a day to be celebrated! He will probably have an anniversary celebration every year…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id... | 1,760,373,130.582315 | ||
https://hackaday.com/2021/04/05/spacing-out-starship-explodes-again-passenger-space-flight-space-bugs-astronaut-bone-and-martian-water/ | Spacing Out: StarShip Explodes (Again), Passenger Space Flight, Space Bugs, Astronaut Bone, And Martian Water | Jenny List | [
"Hackaday Columns",
"Roundup",
"Slider",
"Space"
] | [
"bone density",
"Crew Dragon",
"Ingenuity",
"iss",
"Mars Express",
"Perseverance",
"SpaceShip III",
"SpaceX",
"starship",
"Virgin Galactic"
] | This time I promise I only have a couple of stories from Elon Musk’s company.
SpaceX’s latest Starship test launch ended in another explosion
, proving that space hardware remains hard to get right. We’ll keep watching as they keep launching, and it can’t be long until they’ve ironed out all the problems. Meanwhile the... | 24 | 8 | [
{
"comment_id": "6337261",
"author": "userko",
"timestamp": "2021-04-05T17:45:59",
"content": "A nice overview. It has been reported the Ingenuity helicopter’s flight was postponed till April 11.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6337265",
"au... | 1,760,373,130.704645 | ||
https://hackaday.com/2021/04/05/haptics-hack-chat-with-nanoport-technology/ | Haptics Hack Chat With Nanoport Technology | Dan Maloney | [
"Hackaday Columns"
] | [
"ar",
"feedback",
"Hack Chat",
"haptics",
"touch",
"vibration",
"vr"
] | Join us on Wednesday, April 7 at noon Pacific for the
Haptics Hack Chat
with
Tim Szeto
and
Kyle Skippon
!
Of all our senses, the sense of touch is perhaps the most underappreciated. We understand and accept the tragedy that attends loss of vision or hearing, and the impact on the quality of life resulting from olfactor... | 0 | 0 | [] | 1,760,373,130.636854 |
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