url stringlengths 37 208 | title stringlengths 4 148 | author stringclasses 173
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value | categories listlengths 0 12 | tags listlengths 0 27 | featured_image stringlengths 0 272 | content stringlengths 0 56.1k | comments_count int64 0 900 | scraped_comments_count int64 0 50 | comments listlengths 0 50 | scraped_at float64 1.76B 1.76B |
|---|---|---|---|---|---|---|---|---|---|---|---|
https://hackaday.com/2021/07/06/evan-doorbells-telephone-world/ | Evan Doorbell’s Telephone World | Jonathan Bennett | [
"classic hacks"
] | [
"ma bell",
"phone phreaking",
"phreak"
] | Ah, phone phreaking. Some of us are just old enough to remember the ubiquity of land lines, but just young enough to have missed out on the golden years of phreaking. There’s something nostalgic about the analog sounds of the telephone, and doubly so when you understand what each click and chunk sound means. If this wi... | 19 | 9 | [
{
"comment_id": "6362386",
"author": "Nikolai",
"timestamp": "2021-07-07T03:08:07",
"content": "In my town in Russia, they still use Pulse Dial.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6362394",
"author": "Chris",
"timestamp": "2021-07... | 1,760,373,029.571339 | ||
https://hackaday.com/2021/07/06/see-through-carburetor-gives-a-clear-demonstration/ | See-Through Carburetor Gives A Clear Demonstration | Danie Conradie | [
"Engine Hacks"
] | [
"3d printing",
"carburetor",
"high speed video",
"Smarter Every Day"
] | Carburetors have been largely phased out on most automobiles, but for a century they were the standard, and still are on many smaller engines. Armed with a high-speed camera and with the help of his father, [Smarter Every Day] investigates these devices by experimenting with a DIY
see-through carburetor
connected to a ... | 19 | 7 | [
{
"comment_id": "6362355",
"author": "steelman",
"timestamp": "2021-07-06T23:06:54",
"content": "[Smarter Every Day]I belive he introduces himself as Destin.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6362418",
"author": "Ni",
"timestamp"... | 1,760,373,029.208219 | ||
https://hackaday.com/2021/07/06/e-paper-pocket-map-goes-where-your-phone-cant/ | E-Paper Pocket Map Goes Where Your Phone Can’t | Tom Nardi | [
"handhelds hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"e-ink",
"e-paper",
"electronic paper",
"gps",
"navigation"
] | It’s easy to take for granted the constantly-connected, GPS-equipped, navigation device most of us now carry in our pockets. Want to know how to get to that new restaurant you heard about? A few quick taps in Google Maps, and the optimal route given your chosen transportation method will be calculated in seconds. But i... | 47 | 8 | [
{
"comment_id": "6362327",
"author": "Gravis",
"timestamp": "2021-07-06T21:06:48",
"content": "The only thing it’s missing to be a critical piece of survival gear is some solar cells and to be ruggedized.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "636232... | 1,760,373,029.51475 | ||
https://hackaday.com/2021/07/06/usb-power-banks-auto-off-becomes-useful-feature-in-garage-door-remote/ | USB Power Bank’s Auto-Off Becomes Useful Feature In Garage Door Remote | Donald Papp | [
"Wireless Hacks"
] | [
"auto-off",
"diy",
"garage door",
"power bank",
"power saving",
"remote"
] | For devices that are destined for momentary and infrequent use as well as battery power, some kind of power saving is pretty much a required feature. For example, when [PJ Allen]
turned two ESP8266-based NodeMCU development boards into a replacement wireless remote garage door opener
, a handy USB power bank ended up s... | 10 | 6 | [
{
"comment_id": "6362313",
"author": "echodelta",
"timestamp": "2021-07-06T19:47:45",
"content": "I have a 1100 lumin work light I use as a bike headlight. It has a USB port for charging, great. But it shuts off after running a LED taillight for a minute. Urgh! How much power load do I have to waste... | 1,760,373,029.015746 | ||
https://hackaday.com/2021/07/06/linux-fu-pdf-for-penguins/ | Linux Fu: PDF For Penguins | Al Williams | [
"Hackaday Columns",
"Linux Hacks",
"Slider"
] | [
"ghostscript",
"linux",
"pdf",
"postscript"
] | PostScript started out as a programming language for printers. While PostScript printers are still a thing, there are many other ways to send data to a printer. But PostScript also spawned the Portable Document Format or PDF and that has been crazy successful. Hardly a day goes by that you don’t see some kind of PDF do... | 44 | 28 | [
{
"comment_id": "6362275",
"author": "lthemick",
"timestamp": "2021-07-06T17:19:45",
"content": "This is really useful information; thanks, Al!As a follow-up: What Linux tools enable indexing or searching a collection of pdf’s?For example, I have a large collection of magazine pdf’s – all paid for! ... | 1,760,373,029.378715 | ||
https://hackaday.com/2021/07/06/lightwave-multimeter-teardown/ | Lightwave Multimeter Teardown | Al Williams | [
"Repair Hacks",
"Teardown"
] | [
"8163A",
"agilent",
"fiber optic",
"fibre optic",
"HP",
"Keysight",
"laser",
"lightwave multimeter"
] | You tend to think of test equipment in fairly basic terms: a multimeter, a power supply, a signal generator, and an oscilloscope. However, there are tons of highly-specialized test equipment for very specific purposes. One of these is the 8163A “lightwave multimeter” and [Signal Path] tears one part for
repair
in a rec... | 2 | 2 | [
{
"comment_id": "6362393",
"author": "smellsofbikes",
"timestamp": "2021-07-07T05:02:21",
"content": "At work we have a pile of LeCroy oscilloscopes that are functional as general-purpose but all their design is geared purely towards tuning and testing hard drives. There was an enormous market in s... | 1,760,373,029.054204 | ||
https://hackaday.com/2021/07/06/terrapowers-natrium-combining-a-fast-neutron-reactor-with-built-in-grid-level-storage/ | TerraPower’s Natrium: Combining A Fast Neutron Reactor With Built-In Grid Level Storage | Maya Posch | [
"Engineering",
"Featured",
"green hacks",
"Science",
"Slider"
] | [
"fast reactor",
"Natrium",
"nuclear power",
"sodium coolant",
"TerraPower"
] | Most new nuclear fission reactors being built today are of the light water reactor (LWR) type, which use water for neutron moderation into thermal neutrons as well as neutron capture. While straightforward and in use since the 1950s in commercial settings, they are also essentially limited to uranium (U-235) fuel. This... | 66 | 12 | [
{
"comment_id": "6362239",
"author": "Stephen",
"timestamp": "2021-07-06T14:15:06",
"content": "Sodium cooling has been tried before, with the fast breeder reactors of hte 1960s and 1970s. I don’t think any survive in operation. A leak in a PWR is pretty horrible, but a leak of molten sodium is horr... | 1,760,373,029.677199 | ||
https://hackaday.com/2021/07/03/e-ink-equipped-sourdough-starter-jar/ | E-Ink Equipped Sourdough Starter Jar | Danie Conradie | [
"cooking hacks"
] | [
"CO2 sensor",
"e-ink",
"ESP32",
"sourdough starter",
"Time of Flight Sensor"
] | One of the unexpected side effects of our this pandemic is a sudden growth in the global population of captive colonies of Lactobacillus bacteria and yeast. Also known as sourdough starters, they are usually found in jars with curious names written on top, living off a mixture of flour and water. They require close mon... | 2 | 2 | [
{
"comment_id": "6361822",
"author": "Andy Pugh",
"timestamp": "2021-07-04T08:35:50",
"content": "I recently quite enjoyed:https://www.amazon.co.uk/gp/product/B08CJ86Y1WWhich has a sourdough starter as one of the characters.(It’s aimed at YA but I didn’t realise that when it popped up in my recommen... | 1,760,373,029.149169 | ||
https://hackaday.com/2021/07/03/wifiwart-linux-pentesting-device-gets-first-pcbs/ | WiFiWart Linux Pentesting Device Gets First PCBs | Tom Nardi | [
"computer hacks",
"Security Hacks"
] | [
"A33",
"Allwinner",
"Embedded Linux",
"KiCAD",
"open hardware",
"pentesting",
"WiFiWart"
] | When we last checked in on the WiFiWart, an ambitious project to scratch-build a Linux powered penetration testing drop box small enough to be disguised as a standard phone charger, it was still in the early planning phases. In fact, the whole thing was little more than an idea. But we had a hunch that [Walker] was ten... | 15 | 6 | [
{
"comment_id": "6361750",
"author": "Joe Sammarco",
"timestamp": "2021-07-03T20:49:56",
"content": "Nice",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6361757",
"author": "Gravis",
"timestamp": "2021-07-03T21:34:52",
"content": "It’s curious why ... | 1,760,373,029.435521 | ||
https://hackaday.com/2021/07/03/your-pc-sound-card-as-a-sensor-input/ | Your PC Sound Card As A Sensor Input | Jenny List | [
"Peripherals Hacks"
] | [
"audio",
"measurement",
"soundcard"
] | The commoditised PC is the most versatile tool many of us will own, and since it has been around for a very long time it is also something that can be found for free or very cheaply if the latest components aren’t a concern. It’s not without limitations though, while it’s designed for expansion it no longer has any por... | 21 | 8 | [
{
"comment_id": "6361721",
"author": "Gravis",
"timestamp": "2021-07-03T17:27:58",
"content": "I know the audio from my motherboard’s build-in sound card has a lot of noise in it because it’s placed so closely to the CPU. If this is highly tolerant of noise then this might work but frankly I think ... | 1,760,373,029.112909 | ||
https://hackaday.com/2021/07/03/the-devil-is-in-the-details/ | The Devil Is In The Details | Elliot Williams | [
"Hackaday Columns",
"Rants"
] | [
"newsletter",
"Practice",
"precision",
"theory"
] | If you’ve taken a physics class, you’ve doubtless heard tales of mythical beasts like the massless string, the frictionless bearing, and the perfect sphere. And if you’re designing something new, it’s not always wrong to start by thinking in terms of these abstractions, just to get the basic framework laid and a first-... | 28 | 12 | [
{
"comment_id": "6361686",
"author": "JanW",
"timestamp": "2021-07-03T14:04:01",
"content": "https://hackaday.com/2021/07/01/sub-mm-mechanical-3d-scanner-with-encoders-and-string/???",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361689",
"author": ... | 1,760,373,029.74677 | ||
https://hackaday.com/2021/07/03/a-custom-raspberry-pi-spotted-in-the-wild/ | A Custom Raspberry Pi Spotted In The Wild | Jenny List | [
"Raspberry Pi"
] | [
"BCM3837",
"custom SBC",
"industrial pc"
] | Since the first Raspberry Pi came to market back in 2012 there have been a variety of models released. Some of them are rarer than others, and unusual boards can even be rather sought-after.
This one spotted at a Thai junk vendor
won’t be in the hands of many collectors though, and investigating it sheds a bit of light... | 21 | 7 | [
{
"comment_id": "6361668",
"author": "Pax",
"timestamp": "2021-07-03T11:47:46",
"content": "Maby someone should do a Kickstarter for a custom rpi400+ board:Topside changes: 8gb+FullsizeHDMI+AVP (+ pads for 2nd HDMI)Bottom additions: PCIeSwitch+M2-NVME (+pads for CSI & 3lane DSI headers)and make a cu... | 1,760,373,029.84166 | ||
https://hackaday.com/2021/07/03/3d-zoetrope-uses-illusion-to-double-the-frames/ | 3D Zoetrope Uses Illusion To Double The Frames | Kristina Panos | [
"classic hacks",
"Misc Hacks"
] | [
"3D zoetrope",
"animation multiplexing",
"persistence of vision",
"POV",
"zoetrope"
] | Although film and animation have come quite a long way, there’s still something magical about that grandaddy of them all, the zoetrope. Thanks to persistence of vision, our eyes are fooled into seeing movement where there is none, only carefully laid-out still pictures strobing under the right lighting.
After four mont... | 10 | 6 | [
{
"comment_id": "6361654",
"author": "Apintofmild@yahoo.co.uk",
"timestamp": "2021-07-03T09:36:39",
"content": "This idea has been around a little while, in the UK at least:https://4-mation.co.uk/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361723",
... | 1,760,373,029.893873 | ||
https://hackaday.com/2021/07/02/understanding-custom-signal-protocols-with-old-nintendos/ | Understanding Custom Signal Protocols With Old Nintendos | Bryan Cockfield | [
"Nintendo Hacks"
] | [
"arduino",
"controller",
"interface",
"nintendo",
"protocol",
"snes",
"super nintendo",
"timing",
"Trinket",
"usb"
] | For retro gaming, there’s really no substitute for original hardware. As it ages, though, a lot of us need to find something passable since antique hardware won’t last forever. If a console isn’t working properly an emulator can get us some of the way there, but using an original controller is still preferred even when... | 5 | 3 | [
{
"comment_id": "6361724",
"author": "Osgeld",
"timestamp": "2021-07-03T17:42:23",
"content": "ya know its just a p>s shift register and SPI right?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361900",
"author": "BrightBlueJim",
"timestamp... | 1,760,373,029.785423 | ||
https://hackaday.com/2021/07/05/microfluidics-for-biohacking-hack-chat/ | Microfluidics For Biohacking Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"biochemistry",
"biohacking",
"biology",
"dna",
"fluidics",
"Hack Chat",
"lab on a chip",
"microfluidics",
"nano"
] | Join us on Wednesday, July 7 at noon Pacific for the
Microfluidics for Biohacking Hack Chat
with Krishna Sanka!
“Microfluidics” sounds like a weird and wonderful field, but one that doesn’t touch regular life too much. But consider that each time you fire up an ink-jet printer, you’re putting microfluidics to work, as ... | 2 | 2 | [
{
"comment_id": "6362231",
"author": "Alexander Bissell",
"timestamp": "2021-07-06T13:23:43",
"content": "Oh man I can’t wait. I’ve been working on DIY (makerspace and homelab) microfluidics for the last 2 years and it’s such a niche field that it’s hard to find people to chat with!",
"parent_id... | 1,760,373,030.053841 | ||
https://hackaday.com/2021/07/05/a-new-spin-on-empty-filament-spools-for-part-storage/ | A New Spin On Empty Filament Spools For Part Storage | Donald Papp | [
"3d Printer hacks"
] | [
"filament spool",
"openscad",
"organization",
"reuse"
] | Empty spools from 3D printer filament are the kind of thing that begs to be repurposed, and one option is [3d-printy]’s
vertical filament spool parts drawer design
. The way this solution works is by using the spool to hold twelve vaguely pie-shaped drawers that can be individually unlocked and removed entirely, which ... | 26 | 6 | [
{
"comment_id": "6362039",
"author": "Sowee",
"timestamp": "2021-07-05T14:09:52",
"content": "A spring on those locks would be very good!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6362041",
"author": "mechanism853",
"timestamp": "2021-07-05T14:14:... | 1,760,373,031.047193 | ||
https://hackaday.com/2021/07/05/messaging-on-signal-via-the-esp32/ | Messaging On Signal Via The ESP32 | Lewin Day | [
"internet hacks"
] | [
"ESP32",
"internet of things",
"IoT",
"signal",
"signal app",
"signal messenger"
] | Signal is a popular encrypted messaging app, typically used on smartphones.
The cross-platform service can now be used via the ESP32, however, thanks to the work of [Dharmik] and [Tirth].
The demonstration is simple, using an ESP32 microcontroller fitted with two push buttons. When one button is pushed, it increments a... | 15 | 8 | [
{
"comment_id": "6362024",
"author": "chris0x00",
"timestamp": "2021-07-05T12:43:51",
"content": "This seems to forgo the security niceties of Signal. Rather than using a third-party service, perhaps run Signal locally on a different machine with remote debugging enabled?https://github.com/mandator... | 1,760,373,030.112306 | ||
https://hackaday.com/2021/07/05/litter-buggies-haul-trash-off-the-beach/ | Litter Buggies Haul Trash Off The Beach | Danie Conradie | [
"Robots Hacks"
] | [
"beach",
"remote control",
"rock crawler",
"trash collection"
] | There is a depressing amount of trash in our oceans, and a lot of it is washes up on beaches. [Glenn Morris] has turned collecting all this trash into a favourite pastime, using a series of custom
radio-controlled Litter Buggies
to haul the load.
The most basic versions of these buggies are off the shelf RC rock crawle... | 28 | 12 | [
{
"comment_id": "6362006",
"author": "Joseph Eoff",
"timestamp": "2021-07-05T09:48:26",
"content": "But a used wagon from E-bay or whatever and pull the darned thing around the beach. No batteries to charge, no complicated electronics, you can guide it with one hand, and it can carry your grabber, ... | 1,760,373,030.176999 | ||
https://hackaday.com/2021/07/04/convert-your-mouse-into-a-paddle-controller/ | Convert Your Mouse Into A Paddle Controller | Danie Conradie | [
"Peripherals Hacks"
] | [
"atari",
"opticalm mouse",
"paddle controller"
] | Early game consoles had a wide and interesting variety of controllers, many of which fell by the wayside as consoles evolved. One of these is the Atari 2600 paddle controller, which was the preferred interface for playing games like Kaboom!, Tempest, and Pong. While it is possible to play these games with a mouse, [Re... | 4 | 4 | [
{
"comment_id": "6362008",
"author": "poiuyt",
"timestamp": "2021-07-05T10:09:23",
"content": "Great hack! Particularly Impressive that the modifications are hidden and the conversion is reversible, so the mouse can still be used as normal.",
"parent_id": null,
"depth": 1,
"replies": []
... | 1,760,373,030.21923 | ||
https://hackaday.com/2021/07/04/iron-becomes-smd-hot-plate/ | Iron Becomes SMD Hot Plate | Al Williams | [
"Tool Hacks"
] | [
"hot plate",
"hotplate",
"reflow",
"reflow plate",
"smd plate",
"smd soldering",
"soldering plate"
] | Few things have changed our workshops more than surface mount components. In 1980 it would have been strange to see a hobby bench with a microscope, hot air equipment, tweezers, and all the other accouterments that are a necessity today. [Electronoobs] wanted a reflow hot plate and decided that he could
repurpose a con... | 20 | 8 | [
{
"comment_id": "6361971",
"author": "Paul",
"timestamp": "2021-07-05T02:48:27",
"content": "yeah, a clothes iron works pretty well: it easily ramps fast enough. But the work area isn’t so big, and you can’t have anything at all on the bottom side.But watch the thermal fuse (on american ones anyway... | 1,760,373,030.277199 | ||
https://hackaday.com/2021/07/04/hackaday-links-july-4-2021/ | Hackaday Links: July 4, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"3d",
"collapse",
"echolocation",
"espionage",
"Florida",
"hackaday links",
"phased array",
"rescue",
"sdr",
"spy",
"Starlink",
"urban"
] | With rescue and recovery efforts at the horrific condo collapse in Florida this week still underway, we noted with interest some of the technology being employed on the site. Chief among these was a contribution of the Israeli Defense Force (IDF), whose secretive Unit 9900 unveiled
a 3D imaging system to help locate vi... | 9 | 6 | [
{
"comment_id": "6361963",
"author": "Hirudinea",
"timestamp": "2021-07-04T23:57:26",
"content": "If your are interested in human echolocation here are a couple links about a blind guy who taught himself to do it, and also teaches others.https://en.wikipedia.org/wiki/Daniel_Kishhttps://www.cbc.ca/na... | 1,760,373,030.404175 | ||
https://hackaday.com/2021/07/07/emojo-chatbot-will-be-there-for-you/ | EMOJO Chatbot Will Be There For You | Kristina Panos | [
"Raspberry Pi",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"raspberry pi",
"speech to text",
"text to speech",
"tft"
] | We all need someone to talk to sometimes, and the pandemic has only made matters worse when it comes to the number of people living with anxiety and depression. Exchanging the simplest of pleasantries can make you feel whole again, but the masks make it hard to engage with strangers and judge their emotions, so your bi... | 1 | 1 | [
{
"comment_id": "6362581",
"author": "CRJEEA",
"timestamp": "2021-07-07T19:32:49",
"content": "Let’s hope it doesn’t develop a murderous streak.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,373,030.547542 | ||
https://hackaday.com/2021/07/07/did-you-meet-pepper/ | Did You Meet Pepper? | Jenny List | [
"Robots Hacks"
] | [
"humanoid robot",
"pepper",
"softbank pepper"
] | Earlier this week it was widely reported that Softbank’s friendly-faced almost-humanoid Pepper robot was not long for this world, as the Japanese company’s subsidiary in France that had been responsible for the robotic darling of the last decade was being downsized,
and that production had paused
. Had it gone the way ... | 4 | 3 | [
{
"comment_id": "6362557",
"author": "Funksloff",
"timestamp": "2021-07-07T17:25:18",
"content": "I have a Pepper sitting right next to me right now. Same scenario as in the article, in a science museum where (with the help of a staff member) kids can learn a bit more about coding or put into practi... | 1,760,373,030.593098 | ||
https://hackaday.com/2021/07/07/leggo-my-nintoaster/ | Leggo My Nintoaster! | Kristina Panos | [
"classic hacks"
] | [
"Case mod",
"nintendo",
"toaster"
] | If you’re one of today’s lucky 10,000* who have never seen a Nintoaster case mod before,
boy are we glad you get to see this one first
. [Dizzle813] found a shiny old Sunbeam toaster that looks just like the one we grew up with. Although the original creator made a build video, there is room for improvement in the expl... | 9 | 5 | [
{
"comment_id": "6362527",
"author": "Arif Hossain",
"timestamp": "2021-07-07T15:47:37",
"content": "How about making a toaster PS1 next!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6362555",
"author": "sjm4306",
"timestamp": "2021-07-07T1... | 1,760,373,030.639909 | ||
https://hackaday.com/2021/07/07/whats-chia-and-why-is-it-eating-all-the-hard-drives/ | What’s Chia, And Why Is It Eating All The Hard Drives? | Tom Nardi | [
"Current Events",
"Featured",
"Original Art"
] | [
"bitcoin",
"Chia",
"cryptocurrency",
"farming",
"mining",
"proof of space",
"proof of work"
] | At this point the average Hackaday reader is likely familiar with so-called “Proof of Work” (PoW) cryptocurrencies, such as Bitcoin, Ethereum, and Dogecoin. In the most basic of terms, these cryptocurrencies allow users to earn money by devoting computational power to the network. Unfortunately, it’s well past the poin... | 102 | 14 | [
{
"comment_id": "6362479",
"author": "some guy",
"timestamp": "2021-07-07T14:05:38",
"content": "We really need a law to stop this nonsense waste of energy and ressources.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6362484",
"author": "Some Other... | 1,760,373,030.846737 | ||
https://hackaday.com/2021/07/07/starlink-terminal-unit-firmware-dumped/ | StarLink Terminal Unit Firmware Dumped | Al Williams | [
"Teardown"
] | [
"satellite",
"SpaceX",
"Starlink",
"teardown"
] | There’s a lot of expense in what telephone companies call “the last mile” — delivering service from the main trunks to your home or business. StarLink wants to avoid that cost by connecting you via an array of low-orbit satellites and some users are already using the service. In Belgium, [Lennert Wouters] managed to du... | 17 | 4 | [
{
"comment_id": "6362445",
"author": "Ben",
"timestamp": "2021-07-07T11:08:09",
"content": "Geofencing is an easy one. I guess you could get around that (with questionable legality) with SDR GPS spoofing.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "636244... | 1,760,373,030.899869 | ||
https://hackaday.com/2021/07/07/simplefoc-demystifies-precision-bldc-motor-control/ | SimpleFOC Demystifies Precision BLDC Motor Control | Sonya Vasquez | [
"Robots Hacks"
] | [] | Brushless DC (BLDC) motors are standard fare in low-precision, speedy RC applications. The control schemes needed to run them slowly or precisely go deep into motor theory and might put these motors out of reach for your next homebrew robot project. [Antun Skuric] and crew aim to change just that. They’ve taken the
fie... | 13 | 7 | [
{
"comment_id": "6362420",
"author": "John",
"timestamp": "2021-07-07T08:44:53",
"content": "Nice! I’ve always been interested in using brushed and brushless motors for precision applications, but never wanted to dive into all the hassle. This is the perfect solution. Thanks!",
"parent_id": null... | 1,760,373,030.946699 | ||
https://hackaday.com/2021/07/06/recognising-bird-sounds-with-a-microcontroller/ | Recognising Bird Sounds With A Microcontroller | Danie Conradie | [
"Arduino Hacks",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"ARM microcontroller",
"bird calls",
"conservation",
"Edge Impulse",
"machine learning"
] | Machine learning is an incredible tool for conservation research, especially for scenarios like long term observation, and sifting through massive amounts of data. While the average Hackaday reader might not be able to take part in data gathering in an isolated wilderness somewhere, we are all surrounded by bird life. ... | 4 | 4 | [
{
"comment_id": "6362424",
"author": "echodelta",
"timestamp": "2021-07-07T09:06:57",
"content": "Spurtleete ceoweet, robin. A spelt vocabulary is is needed perhaps. Peterson’s has voice graphs. I’ve never heard of the library above but have heard of the Cornell School of Ornithology which is the st... | 1,760,373,030.989357 | ||
https://hackaday.com/2021/07/02/10-000-physics-wager-settles-the-debate-on-sailing-downwind-faster-than-the-wind/ | $10 000 Physics Wager Settles The Debate On Sailing Downwind Faster Than The Wind | Danie Conradie | [
"Science"
] | [
"land yacht",
"laws of physics",
"sailing",
"veritasium",
"wind power"
] | By now, many of you have seen the video of [Rick Cavallaro]’s Blackbird, the controversial wind-powered land vehicle that can outrun the wind. The video has led to a high-profile
$10 000 wager between [Derek Muller] aka [Veritasium] and [Alex Kusenko], a professor of physics from UCLA
. [Veritasium] won the wager with ... | 95 | 27 | [
{
"comment_id": "6361586",
"author": "Keith J Wakeham",
"timestamp": "2021-07-03T02:17:47",
"content": "His original explanation always bothered me because it implied “bluff body” provides the force for the wheels. As far as I can figure that was 100% wrong. The second one he’s sort of clearer and i... | 1,760,373,031.231789 | ||
https://hackaday.com/2021/07/02/from-printer-to-vinyl-cutter/ | From Printer To Vinyl Cutter | Matthew Carlson | [
"cnc hacks",
"hardware"
] | [
"3d printing",
"arduino",
"inkjet printer",
"pcb",
"vinyl",
"vinyl cutter"
] | Some might look at a cheap inkjet printer and see a clunky device that costs more to replace the ink than to buy a new one. [Abhishek Verma] saw an old inkjet printer and instead saw a smooth gantry and feed mechanism, the perfect platform to
build his own DIY vinyl cutter
.
The printer was carefully disassembled. The ... | 14 | 4 | [
{
"comment_id": "6361577",
"author": "Xtremegamer",
"timestamp": "2021-07-02T23:45:35",
"content": "Vinyl cutters are becoming e-waste since some companies tend to go the apple way and revise hardware just for the sake of money influx, yet they DRM everything so you cant use it without their eco-sys... | 1,760,373,031.101296 | ||
https://hackaday.com/2021/07/02/an-oshw-ir-remote-control-powered-by-the-attiny13a/ | An OSHW IR Remote Control Powered By The ATtiny13A | Tom Nardi | [
"ATtiny Hacks",
"LED Hacks"
] | [
"ATtiny13A",
"infrared",
"IR remote",
"remote control"
] | The new hotness in consumer electronics might be RF remotes based on protocols like Bluetooth Low Energy, but there’s still plenty of life left in the classic infrared remote. Especially with projects like
TinyRemoteXL from [Stefan Wagner]
, which let you build and program an IR “clicker” of your own. Whether you want ... | 15 | 5 | [
{
"comment_id": "6361535",
"author": "Vojťák",
"timestamp": "2021-07-02T20:16:39",
"content": "I would prefer charlieplexed buttons (with diodes and internal pull-up resistors) instead of using ADC. But still, great project!",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,373,031.349327 | ||
https://hackaday.com/2021/07/02/throne-of-dev-an-endgame-office-chair/ | Throne Of Dev: An Endgame Office Chair | Kristina Panos | [
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"Office Chair",
"plywood",
"recliner",
"working from home"
] | They say you shouldn’t cheap out on anything that comes between you and the ground. Typically, that list includes shoes, tires, and mattresses. But it’s 2021, and it’s high time to add ‘office chair’ to that list. Take it from someone who bought a handful of hundred-dollar office chairs and finally invested in an Aeron... | 21 | 11 | [
{
"comment_id": "6361518",
"author": "PWalsh",
"timestamp": "2021-07-02T19:27:16",
"content": "(Apropos of suggestions) Awhile back I had some thoughts on doing this.I don’t like 2 displays on the same computer, because you spend a lot of time trying to find the mouse pointer and adjusting the apps ... | 1,760,373,031.406843 | ||
https://hackaday.com/2021/07/02/the-trouble-with-hubble-payload-computer-glitch-stops-science-at-the-space-observatory/ | The Trouble With Hubble: Payload Computer Glitch Stops Science At The Space Observatory | Dan Maloney | [
"Current Events",
"Featured",
"News",
"Slider",
"Space"
] | [] | The Hubble Space Telescope’s remarkably long service life and its string of astonishing contributions to astronomy belie its troubled history. Long before its launch into low Earth orbit in 1990, Hubble suffered from design conflicts, funding and budgetary pressures, and even the death of seven astronauts. Long delayed... | 21 | 6 | [
{
"comment_id": "6361939",
"author": "Ren",
"timestamp": "2021-07-04T21:29:27",
"content": "Thank you for activating the Comments!(Though I’ve forgotten what I was going to write!)B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6362745",
"author":... | 1,760,373,031.296867 | ||
https://hackaday.com/2021/07/02/hackaday-podcast-125-linux-users-talking-windows-11-pop-bottle-filament-old-phones-with-modern-guts-and-eavesdropping-in-rf/ | Hackaday Podcast 125: Linux Users Talking Windows 11, Pop Bottle Filament, Old Phones With Modern Guts, And Eavesdropping In RF | Mike Szczys | [
"Hackaday Columns",
"Podcasts",
"Slider"
] | [
"Hackaday Podcast"
] | Hackaday editors Mike Szczys and Elliot Williams look through the most interesting hacks of the week. We spent ample time in adulation of the automatons built by
François Junod
; wizard-level watchmaking wrapped in endless levels of artistic detail. A couple projects stuffed into old cellphones turned Elliot’s head. We... | 4 | 2 | [
{
"comment_id": "6361584",
"author": "fumthings",
"timestamp": "2021-07-03T01:43:42",
"content": "also the censoring this week was the “6 million dollar man” jumping or doing something superhuman.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361641",
... | 1,760,373,031.54428 | ||
https://hackaday.com/2021/07/02/discarded-plastic-laser-cut-and-reassembled/ | Discarded Plastic Laser-Cut And Reassembled | Bryan Cockfield | [
"cnc hacks",
"green hacks"
] | [
"3d printer",
"garbage",
"laser cutter",
"melt",
"plastic",
"recycle",
"reuse",
"sheet"
] | The longevity of plastic is both a blessing and a curse. On the one hand, it’s extremely durable, inexpensive, and easy to work with, but it also doesn’t biodegrade and lasts indefinitely in the environment when not disposed of properly. While this can mean devastating impacts to various ecosystems, it can also be a be... | 15 | 7 | [
{
"comment_id": "6361470",
"author": "Alice Lalita Heald",
"timestamp": "2021-07-02T15:41:37",
"content": "Good idea, but too colorful for my taste, how to make it normal?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361480",
"author": "MikrySoft"... | 1,760,373,031.664072 | ||
https://hackaday.com/2021/07/02/this-week-in-security-bad-signs-from-microsoft-an-epyc-vm-escape/ | This Week In Security: Bad Signs From Microsoft, An Epyc VM Escape | Jonathan Bennett | [
"computer hacks",
"News",
"Security Hacks"
] | [
"0-day",
"My Book Live",
"This Week in Security",
"Zyxel"
] | Code signing is the silver bullet that will save us from malware, right? Not so much, particularly when
vendors can be convinced to sign malicious code
. Researchers at G DATA got a hit on a Windows kernel driver, indicating it might be malicious. That seemed strange, since the driver was properly signed by Microsoft. ... | 14 | 5 | [
{
"comment_id": "6361460",
"author": "Truth",
"timestamp": "2021-07-02T14:58:17",
"content": "> it seemed to be decoding SSL connections and sending the data to the C&C serverPlug “SSLKEYLOGFILE” into your search engine of choice. The logged keys could then be used for debugging TLS traffic.SSL is o... | 1,760,373,031.610505 | ||
https://hackaday.com/2021/07/02/a-robot-to-top-up-your-tesla/ | A Robot To Top Up Your Tesla | Danie Conradie | [
"car hacks",
"Robots Hacks"
] | [
"charging station",
"electric car",
"robot arm",
"tesla"
] | The convenience of just plugging in your car in the evening and not going into a gas station is great as long as you remember to do the plugging. You really don’t want to get caught with an empty battery while you’re in a rush. [Pat Larson]’s
Tesla plugging robot
might be a handy insurance policy if you count forgetful... | 37 | 10 | [
{
"comment_id": "6361419",
"author": "BaZ",
"timestamp": "2021-07-02T11:34:48",
"content": "Might it be more accurate to print some high contrast QR style vinyl stickers to identify the charging hole? Four small ones around it, placed at known distances from each other?",
"parent_id": null,
... | 1,760,373,031.827016 | ||
https://hackaday.com/2021/07/02/dumping-90s-honda-ecu-programming-with-arduino/ | Dumping 90’s Honda ECU Programming With Arduino | Danie Conradie | [
"car hacks",
"classic hacks"
] | [] | [P1kachu] owns a pair of early 1990’s Honda’s with custom tuning on their stock ECUs, and after having to get the ECU repaired on his ’93 civic, he found himself going down the rabbit hole of
Honda ECU EPROM chips
.
During the repair process, the tuning shop owner, or [Tuner-san] as [P1ikachu] refers to him, made a bac... | 19 | 6 | [
{
"comment_id": "6361370",
"author": "BT",
"timestamp": "2021-07-02T08:10:06",
"content": "“for each of the 256 memory addresses on the Microchip 27C256 EPROM”.There are 32k memory addresses. The 256 in the chip number refers to 256*k* bits = 32k bytes.",
"parent_id": null,
"depth": 1,
"... | 1,760,373,031.984148 | ||
https://hackaday.com/2021/07/01/this-horrifying-robot-is-here-to-teach-you-a-lesson/ | This Horrifying Robot Is Here To Teach You A Lesson | Tom Nardi | [
"Raspberry Pi",
"Video Hacks"
] | [
"python",
"Raspberry Pi 4",
"ssh",
"telepresence",
"telepresence robot",
"work from home"
] | No, despite what it might look like, this isn’t some early Halloween project. The creepy creation before you is actually a tongue-in-cheek “robot” created by the prolific [Nick Bild], a topical statement about companies asking their remote workers to come back into the office now that COVID-19 restrictions are being li... | 8 | 3 | [
{
"comment_id": "6361346",
"author": "JWhitten",
"timestamp": "2021-07-02T06:24:45",
"content": "Raise your hand if that looks uncannily like one of your coworkers…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361428",
"author": "Nick Bild",
... | 1,760,373,031.869961 | ||
https://hackaday.com/2021/07/01/quick-and-simple-morse-decoder/ | Quick And Simple Morse Decoder | Chris Lott | [
"Arduino Hacks"
] | [
"algorithm",
"arduino",
"morse code"
] | [Rostislav Persion] wrote a
simple Morse Code decoder
to run on his Arduino and display the text on an LCD shield. This is probably the simplest decoder possible, and thus its logic is pretty straightforward to follow. Simplicity comes at a price — changing the speed requires changing constants in the code. We would li... | 14 | 11 | [
{
"comment_id": "6361320",
"author": "Paul",
"timestamp": "2021-07-02T03:48:04",
"content": "Yep. Morse makes great error beep codes, and a single letter is easy enough to be parsable even by muggles. (like “long short short short” = “B”attery)",
"parent_id": null,
"depth": 1,
"replie... | 1,760,373,031.928221 | ||
https://hackaday.com/2021/07/01/automate-the-farm-with-acorn/ | Automate The Farm With Acorn | Bryan Cockfield | [
"green hacks"
] | [
"acorn",
"automation",
"capacitor",
"computer vision",
"farm",
"gps",
"robot",
"solar",
"sustainable"
] | Farming has been undergoing quite a revolution in the past few years. Since World War 2, most industrial farming has relied on synthetic fertilizer, large machinery, and huge farms with single crops. Now there is a growing number of successful farmers bucking that trend with small farms growing many crops and using nat... | 40 | 11 | [
{
"comment_id": "6361276",
"author": "Programmer Dude (@koppanyh)",
"timestamp": "2021-07-01T23:37:16",
"content": "Ok, now I’m curious, I’ve noticed a lot of farm robots have that similar form-factor, why is that? I understand that the wheels are like that because of the terrain it has to work on, ... | 1,760,373,032.231189 | ||
https://hackaday.com/2021/07/01/esp32-turned-handy-swd-flasher-for-nrf52-chips/ | ESP32 Turned Handy SWD Flasher For NRF52 Chips | Tom Nardi | [
"Microcontrollers",
"Software Hacks"
] | [
"custom firmware",
"ESP32",
"flasher",
"nRF52",
"SWD",
"voltage glitch"
] | Got an nRF52 or nRF51 device you need to flash? Got an ESP32 laying around collecting dust? If so, then firmware hacking extraordinaire
[Aaron Christophel] has the open source code you need
. His new project allows the affordable WiFi-enabled microcontroller to read and write to the internal flash of Nordic nRF52 serie... | 9 | 6 | [
{
"comment_id": "6361242",
"author": "DonPavlov",
"timestamp": "2021-07-01T20:22:12",
"content": "You can SWD flash the device with it. But can you also delete the flash easily with it? From my experience I always needed a jlink for that.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,032.032289 | ||
https://hackaday.com/2021/06/30/mits-knitted-keyboard-is-quite-a-flexible-midi-controller/ | MIT’s Knitted Keyboard Is Quite A Flexible MIDI Controller | Kristina Panos | [
"Musical Hacks"
] | [
"aftertouch",
"capacitive touch",
"midi controller",
"MPR121",
"Teensy",
"Teensy 4.0"
] | There are only so many ways to make noise on standard instruments such as acoustic pianos. Their rigidity and inputs just don’t allow for a super-wide range of expression. On the other hand, if you knit your interface together, the possibilities are nearly endless.
MIT’s new and improved knitted keyboard is an instrume... | 7 | 5 | [
{
"comment_id": "6361100",
"author": "Mike",
"timestamp": "2021-07-01T07:51:22",
"content": "Eat your heart out theremin!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361140",
"author": "Foldi-One",
"timestamp": "2021-07-01T12:47:00",
... | 1,760,373,032.083609 | ||
https://hackaday.com/2021/06/30/installing-linux-like-its-1989/ | Installing Linux Like It’s 1989 | Bryan Cockfield | [
"Raspberry Pi",
"Retrocomputing"
] | [
"1989",
"286",
"compaq",
"dos",
"intel",
"linux",
"pi zero",
"raspberry pi",
"retro",
"terminal"
] | A common example of the sheer amount of computing power available to almost anyone today is comparing a smartphone to the Apollo guidance computer. This classic computer was the first to use integrated circuits so it’s fairly obvious that most modern technology would be orders of magnitude more powerful, but we don’t n... | 34 | 14 | [
{
"comment_id": "6361034",
"author": "Rumble_in_the_Jungle",
"timestamp": "2021-06-30T23:07:10",
"content": "Just let the old tech go away for retirement.(typed on IBM X31)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361249",
"author": "Nyetski"... | 1,760,373,032.157065 | ||
https://hackaday.com/2021/06/30/machine-vision-archer-makes-you-the-target-if-you-dare/ | Machine-Vision Archer Makes You The Target, If You Dare | Dan Maloney | [
"Misc Hacks"
] | [
"archery",
"arrow",
"ballistics",
"bow",
"computer vision",
"depth camera",
"machine vision",
"Realsense",
"target"
] | We’ll state right up front that it’s a really, really bad idea to let
a robotic archer shoot an apple off of your head
. You absolutely should not repeat what you’ll see in the video below, and if you do, the results are all on you.
That said, [Kamal Carter]’s build is pretty darn cool. He wisely chose to use just abou... | 6 | 2 | [
{
"comment_id": "6361009",
"author": "Alexander Wikström",
"timestamp": "2021-06-30T20:31:53",
"content": "For a second there I were thinking he used a real bow. Honestly hard to tell with the Olympic recurve style that toy bow has going for it.But to a degree. As long as the control loops and recog... | 1,760,373,032.272301 | ||
https://hackaday.com/2021/06/30/pinthing-mechanizes-pin-art/ | PinThing Mechanizes Pin Art | Danie Conradie | [
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"3d printed",
"dc motor",
"firmata",
"pin art"
] | Pin art is one of those things that simply cannot be left alone if it’s within arms reach, and inevitably end up with a hand or face imprint. [hugs] is also fascinated by them, so he designed the
PinThing
, a mechanized pin art display.
The PinThing pin diameters are much larger than standard pin art, but this is to fi... | 11 | 7 | [
{
"comment_id": "6360988",
"author": "mathvdd",
"timestamp": "2021-06-30T18:55:03",
"content": "The sound is so satisfying",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6361010",
"author": "Thinkerer",
"timestamp": "2021-06-30T20:39:46",
"content"... | 1,760,373,032.320734 | ||
https://hackaday.com/2021/06/30/adding-a-gentle-touch-to-prosthetic-limbs-with-somatosensory-stimulation/ | Adding A Gentle Touch To Prosthetic Limbs With Somatosensory Stimulation | Maya Posch | [
"Featured",
"Medical Hacks",
"News",
"Original Art",
"Science",
"Slider"
] | [
"nathan copeland",
"neuroprosthetics",
"utah array"
] | When Nathan Copeland suffered a car accident in 2004, damage to his spinal cord at the C5/C6 level resulted in
tetraplegic paralysis
. This left him initially at the age of 18 years old to consider a life without the use of his arms or legs, until he got selected in 2014 for a study at the University of Pittsburgh invo... | 5 | 3 | [
{
"comment_id": "6360982",
"author": "mathvdd",
"timestamp": "2021-06-30T18:29:43",
"content": "Would somebody know how is the boundary between the internal electrodes, the external connector and the organic tissues? Like, is the apparatus screwed to the skull? How is the boundary between the skin a... | 1,760,373,032.528349 | ||
https://hackaday.com/2021/06/30/astronomic-patio-light-timer/ | Astronomic Patio Light Timer | Chris Lott | [
"home hacks"
] | [
"astronomic",
"patio lights",
"remote control",
"string lights",
"sunset timer"
] | Not satisfied with the handheld remote control for his outdoor patio lights, [timabram] decided to build an
automatic timer using an ESP8266
. He’s using a set of string lights from Costco, but as you dig into his project you’ll see the method he uses can be applied to almost any set of lights that have a remote.
He do... | 21 | 11 | [
{
"comment_id": "6360920",
"author": "Alice Lalita Heald",
"timestamp": "2021-06-30T15:41:48",
"content": "Why over complicate it? LDR with filtering.Has built in planetary compensation :D",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6360921",
"author": ... | 1,760,373,032.596835 | ||
https://hackaday.com/2021/06/30/chinas-mars-rover-goes-exploring/ | China’s Mars Rover Goes Exploring | Lewin Day | [
"Current Events",
"Science",
"Space"
] | [
"china national space administration",
"CNSA",
"mars",
"mars rover",
"space",
"space program",
"Zhurong"
] | China’s space program has big goals and is already starting to achieve them. Recently, the China National Space Administration has landed its first rover on Mars, and begun to explore the surface of the red planet.
It’s a huge step, and something only previously achieved successfully by NASA. Let’s take a look at the C... | 20 | 6 | [
{
"comment_id": "6360887",
"author": "Ren",
"timestamp": "2021-06-30T14:26:21",
"content": "” More rovers on Mars can only mean more learning, though we’re a touch disappointed that thus far, they’ve all landed far apart and don’t get to hang out.”Demolition Derby on Mars!Only One Will Win!B^)",
... | 1,760,373,032.662609 | ||
https://hackaday.com/2021/06/30/handheld-hackintosh-runs-mac-os-on-lattepanda/ | Handheld Hackintosh Runs Mac OS On LattePanda | Tom Nardi | [
"handhelds hacks",
"Mac Hacks"
] | [
"3D printed enclosure",
"hackintosh",
"handheld",
"Mac OS",
"portable computer"
] | We’ve seen a huge influx of bespoke portable computers over the last couple of years thanks to availability of increasingly powerful single-board computers. The vast majority of these have been ARM powered using something like the Raspberry Pi 4, and naturally, run Linux. Only a handful have run on x86 hardware, usuall... | 16 | 7 | [
{
"comment_id": "6360828",
"author": "Luenardi De Polo",
"timestamp": "2021-06-30T11:08:01",
"content": "Very nice aesthetics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6360845",
"author": "Peter Burkimsher",
"timestamp": "2021-06-30T11:45:17",
... | 1,760,373,032.816142 | ||
https://hackaday.com/2021/06/30/robotic-ball-bouncing-platform-learns-new-tricks/ | Robotic Ball-Bouncing Platform Learns New Tricks | Donald Papp | [
"Art",
"cnc hacks",
"Robots Hacks"
] | [
"art",
"ball bouncing",
"bounce",
"computer vision",
"motion control",
"ping pong",
"platform",
"robotic"
] | [T-Kuhn]’s
Octo-Bouncer platform has learned some new tricks since we saw it last
. If you haven’t seen it before, this device uses computer vision from a camera mounted underneath its thick, clear acrylic platform to track a ball in 3D space, and make the necessary (and minute) adjustments needed to control the ball’s... | 11 | 8 | [
{
"comment_id": "6360799",
"author": "davethewalker",
"timestamp": "2021-06-30T09:07:49",
"content": "I think the next step has to be two of these robots passing the ball between them.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361161",
"author"... | 1,760,373,034.478522 | ||
https://hackaday.com/2021/06/29/the-incredible-mechanical-artistry-of-francois-junod/ | The Incredible Mechanical Artistry Of François Junod | Danie Conradie | [
"Art"
] | [
"automata",
"automaton",
"mechanics",
"Mechanisms"
] | The art of building purely mechanical automatons has dramatically declined with the arrival of electronics over the past century, but there are still a few craftsmen who keep the art form alive. [François Junod] is one of these masters, and the
craftsmanship and intricacy on display in his automata
is absolutely amazin... | 16 | 11 | [
{
"comment_id": "6360758",
"author": "geocrasher",
"timestamp": "2021-06-30T05:53:48",
"content": "These works are incredible beyond words. They are the confluence of expert engineering and masterful art. I doubt kings commissioned greater works.",
"parent_id": null,
"depth": 1,
"replies... | 1,760,373,034.371228 | ||
https://hackaday.com/2021/06/29/the-game-boy-as-you-have-never-seen-it-before/ | The Game Boy As You Have Never Seen It Before Is Newest From [Sprite_tm] | Jenny List | [
"Nintendo Game Boy Hacks"
] | [
"game boy",
"raspberry pi",
"sprite_tm"
] | Explain a Game Boy to a child in 2021 and they’ll have little idea of how much impact that chunky grey brick had back in the day. Search for a YouTube video to demonstrate, and you might find the one we’ve put below the break. It starts with the classic Tetris on the Game Boy, then moves on to Super Mario World before ... | 16 | 7 | [
{
"comment_id": "6360784",
"author": "Jeremy",
"timestamp": "2021-06-30T07:28:35",
"content": "this is what i’ve been hoping to see from someone doing a pi gameboy from the beginning",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6360785",
"author": "James... | 1,760,373,034.603422 | ||
https://hackaday.com/2021/06/29/ball-cvt-drives-robot-from-a-constant-speed-motor/ | Ball CVT Drives Robot From A Constant Speed Motor | Danie Conradie | [
"Robots Hacks"
] | [
"continuously variable transmission",
"CVT",
"drivetrain",
"james bruton"
] | [James Bruton] is experimenting is a series of interesting mechanical mechanisms, the latest being a CVT transmission system which uses a
tilting sphere to get a variable speed output
from a constant speed input. Video after the break.
In [James]’ proof of concept RC vehicle, a single powered disc is mounted on top, at... | 13 | 6 | [
{
"comment_id": "6360690",
"author": "Andy Pugh",
"timestamp": "2021-06-29T23:09:12",
"content": "This is the basis of the Kopp Variator, used in a number of lathes and other applications around the middle of the last century.I did a rebuild of one some years ago, it’s an interesting device.Pictures... | 1,760,373,034.742453 | ||
https://hackaday.com/2021/06/29/smart-response-xe-turned-pocket-basic-playground/ | SMART Response XE Turned Pocket BASIC Playground | Tom Nardi | [
"Arduino Hacks",
"Software Hacks"
] | [
"basic",
"Pogo pin",
"SMART Response XE",
"tiny BASIC"
] | Ever since the SMART Response XE was brought to our attention back in 2018, we’ve been keeping a close lookout for projects that make use of the Arduino-compatible educational gadget. Admittedly it’s taken a bit longer than we’d expected for the community to really start digging into the capabilities of the QWERTY hand... | 13 | 4 | [
{
"comment_id": "6360632",
"author": "Ken",
"timestamp": "2021-06-29T20:25:05",
"content": "The only way it could look more like a Radio Shack Model 100 would be if the case were white & black!The various claims to fame the model 100 had were that it ran off dry cell batteries, it held its value ver... | 1,760,373,034.849851 | ||
https://hackaday.com/2021/06/29/just-how-vulnerable-to-accidental-erasure-are-eproms-anyway/ | Just How Vulnerable To Accidental Erasure Are EPROMs Anyway? | Dan Maloney | [
"Retrocomputing"
] | [
"eprom",
"erasable",
"memory",
"sunlight",
"sunscreen",
"uv"
] | On the scale of things worth worrying about, having to consider whether your EPROMs will be accidentally erased by some stray light in the shop is probably pretty low on the list. Still, losing irreplaceable data can make for a bad day, so it might just pay to know what your risks really are.
To address this question, ... | 45 | 19 | [
{
"comment_id": "6360581",
"author": "KD9KCK",
"timestamp": "2021-06-29T18:38:25",
"content": "One question could also be how long will they survive in todays LED lighted rooms, which put out much less UV then say a fluorescent tube.",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,373,034.687237 | ||
https://hackaday.com/2021/06/29/kathleen-lonsdale-saw-through-the-structure-of-benzene/ | Kathleen Lonsdale Saw Through The Structure Of Benzene | Kristina Panos | [
"Biography",
"chemistry hacks",
"Hackaday Columns",
"Original Art",
"Slider"
] | [
"benzene",
"benzene ring",
"crystallography",
"x-ray crystallography",
"x-ray diffraction"
] | The unspoken promise of new technologies is that they will advance and enhance our picture of the world — that goes double for the ones that are specifically designed to let us look closer at the physical world than we’ve ever been able to before. One such advancement was the invention of X-ray crystallography that let... | 14 | 7 | [
{
"comment_id": "6360614",
"author": "Michael",
"timestamp": "2021-06-29T20:00:26",
"content": "I’d dewar.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6360620",
"author": "Hirudinea",
"timestamp": "2021-06-29T20:13:09",
"content": ... | 1,760,373,034.429063 | ||
https://hackaday.com/2021/06/29/petbot-turn-pet-bottles-into-filament/ | PetBot: Turn PET Bottles Into Filament | Danie Conradie | [
"3d Printer hacks"
] | [
"3d printer filament",
"filament extruder",
"PET plastic"
] | Recycling plastic into filament normally involves chopping it into tiny pieces and pushing it through a screw extruder. [
JRT3D
] is taking a different approach with PetBot, which cuts PET bottles into tape and then turns it into filament. See the videos after the break.
Cutting the tape and extrusion happens in two co... | 44 | 14 | [
{
"comment_id": "6360495",
"author": "JWhitten",
"timestamp": "2021-06-29T15:39:01",
"content": "That’s pretty cool. What about washing the plastic though? How clean does it need to be?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6360550",
"author... | 1,760,373,034.555839 | ||
https://hackaday.com/2021/06/29/the-great-windows-11-computer-extinction-experiment/ | The Great Windows 11 Computer Extinction Experiment | Jenny List | [
"Current Events",
"Featured",
"News",
"Slider",
"Software Hacks"
] | [
"microsoft",
"windows",
"Windows 11"
] | There was a time when a new version of Windows was a really big deal, such the launch of Windows 95 for which the tones of the Rolling Stones’
Start me up
could be heard across all manner of media outlets. Gradually over years this excitement has petered out, finally leaving us with Windows 10 that would,
we were told
... | 294 | 50 | [
{
"comment_id": "6360441",
"author": "Miles",
"timestamp": "2021-06-29T14:11:31",
"content": "I am not looking forward to a MS account, I’m hopeful tpm 1.2 and local user accounts will be available with a workaround. Shame on MS, and shame on Apple and Google for showing them the way to track users... | 1,760,373,035.430578 | ||
https://hackaday.com/2021/06/29/garage-semiconductor-fab-gets-reactive-ion-etching-upgrade/ | Garage Semiconductor Fab Gets Reactive-Ion Etching Upgrade | Dan Maloney | [
"Misc Hacks"
] | [
"CF4",
"etching",
"fab",
"fluorine",
"ic",
"plasma",
"Reactive",
"RF",
"SF4",
"silicon"
] | It’s a problem that few of us will likely ever face: once you’ve built your first homemade integrated circuit, what do you do next? If you’re [Sam Zeloof], the answer is clear: build
better
integrated circuits.
At least that’s [Sam]’s plan, which
his new reactive-ion etching setup
aims to make possible. While
his Z1 du... | 21 | 10 | [
{
"comment_id": "6360434",
"author": "newspaperman57",
"timestamp": "2021-06-29T13:42:10",
"content": "I never expected the words “Garage” and “Semiconductor fab” to be used in the same sentence…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6360733",
... | 1,760,373,034.798464 | ||
https://hackaday.com/2021/06/29/just-how-did-1500-bytes-become-the-mtu-of-the-internet/ | Just How Did 1500 Bytes Become The MTU Of The Internet? | Donald Papp | [
"internet hacks",
"Network Hacks"
] | [
"internet",
"mtu",
"network",
"packet",
"protocol design"
] | [Benjojo] got interested in where the magic number of 1,500 bytes came from, and
shared some background on just how and why it seems to have come to be
. In a nutshell, the maximum transmission unit (MTU) limits the maximum amount of data that can be transmitted in a single network-layer transaction, but 1,500 is kind ... | 59 | 27 | [
{
"comment_id": "6360383",
"author": "Truth",
"timestamp": "2021-06-29T08:19:49",
"content": "I would try and make contact Vint Cerf or Bob Kahn, they may not know the answer, but they would definitely have more insight than most. And could probably point you in the direction of someone for a more d... | 1,760,373,034.988254 | ||
https://hackaday.com/2021/06/28/tiny-operating-system-for-tiny-computer/ | Tiny Operating System For Tiny Computer | Bryan Cockfield | [
"Retrocomputing"
] | [
"arduino",
"Atmel",
"France",
"french",
"mega",
"Minitel",
"operating system",
"zardos"
] | Before the World Wide Web became ubiquitous as the
de facto
way to access electronic information, there were many other ways of retrieving information online. One of the most successful of these was Minitel, a French videotex service that lasted from 1980 all the way until 2012. But just because the service has been de... | 12 | 5 | [
{
"comment_id": "6360381",
"author": "David",
"timestamp": "2021-06-29T07:57:26",
"content": "Really cool seeing that someone is working on these Minitel machines. I remember seeing these in multiple apartments when visiting France as kid in the 90s. From what I remember it was pretty common, even i... | 1,760,373,035.036406 | ||
https://hackaday.com/2021/06/28/slice-your-next-fpga-design/ | Slice Your Next FPGA Design | Al Williams | [
"FPGA"
] | [
"fpga",
"slice",
"verilog"
] | A recent trend has been to convert high-level constructs into FPGA code like Verilog or VHDL.
Silice
goes the other way: it converts very hardware-specific concepts to Verilog and aims to be a more expressive and easier to use language.
Why Silice? The project’s web page enumerates its design goals:
A clean, simple syn... | 12 | 5 | [
{
"comment_id": "6360330",
"author": "Anon",
"timestamp": "2021-06-29T02:47:21",
"content": "The language appears to be named “Silice” not “Slice” in the linked Github repo. Really cool project.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6360341",
"au... | 1,760,373,035.59165 | ||
https://hackaday.com/2021/07/01/wiggling-screen-and-dlp-power-this-volumetric-pov-display/ | Wiggling Screen And DLP Power This Volumetric POV Display | Dan Maloney | [
"The Hackaday Prize"
] | [
"2021 Hackaday Prize",
"digital light processor",
"dlp",
"membrane",
"persistence of vision",
"POV",
"volumetric"
] | It seems like the world is ready for a true 3D display. We’ve seen them in sci-fi for decades now, with the ability to view a scene from any angle and inspect it up close. They’ve remained elusive, but that might just be changing thanks to
this open-source persistence-of-vision volumetric display
.
If the VVD, as it ha... | 25 | 11 | [
{
"comment_id": "6361207",
"author": "KVG",
"timestamp": "2021-07-01T18:36:48",
"content": "That is amazing.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6361211",
"author": "Will",
"timestamp": "2021-07-01T18:49:17",
"content": "Nice work.",
... | 1,760,373,035.54443 | ||
https://hackaday.com/2021/07/01/could-airships-make-a-comeback-with-new-hybrid-designs/ | Could Airships Make A Comeback With New Hybrid Designs? | Lewin Day | [
"Featured",
"Interest",
"Original Art",
"Slider",
"Transportation Hacks"
] | [
"airlander",
"airlander 10",
"airship",
"flight",
"helium",
"hybrid air vehicles",
"hybrid airship",
"lighter-than-air"
] | Airships. Slow, difficult to land, and highly flammable when they’re full of hydrogen. These days, they’re considered more of a historical curiosity rather than a useful method of transport.
Hybrid Air Vehicles are a UK-based startup working to create a modern take on the airship concept.
The goal is to create cleaner ... | 101 | 25 | [
{
"comment_id": "6361187",
"author": "Cree",
"timestamp": "2021-07-01T17:13:53",
"content": "OH YES PLEASE!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361385",
"author": "mac012345",
"timestamp": "2021-07-02T09:11:22",
"content":... | 1,760,373,035.73782 | ||
https://hackaday.com/2021/07/01/jigsaw-puzzle-lights-up-with-each-piece/ | Jigsaw Puzzle Lights Up With Each Piece | Bryan Cockfield | [
"Art",
"LED Hacks"
] | [
"arduino",
"attiny3216",
"fabacademy",
"jigsaw puzzle",
"light",
"neopixel",
"puzzle",
"spirograph"
] | Putting the last piece of a project together and finally finishing it up is a satisfying feeling. When the last piece of a puzzle like that is a literal puzzle, though, it’s even better. [Nadieh] has been working on
this jigsaw puzzle that displays a fireworks-like effect
whenever a piece is placed correctly, using a l... | 5 | 5 | [
{
"comment_id": "6361175",
"author": "SPD",
"timestamp": "2021-07-01T16:19:27",
"content": "Videohttp://fab.academany.org/2021/labs/waag/students/nadieh-bremer/presentation.mp4",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6361262",
"author": "Ducky",
... | 1,760,373,035.477552 | ||
https://hackaday.com/2021/07/01/social-engineering-and-menus/ | Social Engineering And Menus | Al Williams | [
"Featured",
"Skills",
"Slider"
] | [
"marketing",
"menu engineering",
"psychology",
"social engineering"
] | If you follow cybersecurity hacker methods — or just watch
Mr. Robot
— you probably know that the best way to get someone’s password is to ask for it. Sure, you probably can’t just say “Hi, I’m a bad guy. Can I have your password?” But there are all sorts of tricks you can use like pretending to be in the person’s IT d... | 59 | 17 | [
{
"comment_id": "6361149",
"author": "Ostracus",
"timestamp": "2021-07-01T14:08:51",
"content": "Social in a group that’s traditionally not noted for it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361167",
"author": "Jon",
"timestamp": "... | 1,760,373,035.952551 | ||
https://hackaday.com/2021/07/01/sub-mm-mechanical-3d-scanner-with-encoders-and-string/ | Sub-mm Mechanical 3D Scanner With Encoders And String | Danie Conradie | [
"Tool Hacks"
] | [
"3d scanning",
"encoders",
"metrology"
] | [Scott Rumschlag] wanted a way to precisely map interior spaces for remodeling projects, but did not want to deal with the massive datasets created by optical 3D scanning, and found the precision of the cost-effective optical tools lacking. Instead, he built a
3D cable measuring device
that can be used to map by using ... | 29 | 11 | [
{
"comment_id": "6361128",
"author": "Olivier",
"timestamp": "2021-07-01T11:06:31",
"content": "Very cool idea & execution",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361178",
"author": "Gert",
"timestamp": "2021-07-01T16:39:28",
... | 1,760,373,035.849383 | ||
https://hackaday.com/2021/07/01/pi-pico-game-boy-flash-cart-gets-slim-rp2040-upgrade/ | Pi Pico Game Boy Flash Cart Gets Slim RP2040 Upgrade | Tom Nardi | [
"Microcontrollers",
"Nintendo Game Boy Hacks"
] | [
"flash cart",
"flash cartridge",
"game boy",
"pi pico",
"rom",
"rp2040"
] | The story for this one starts a few months ago,
when [John Green] released his PICO-GB project
. His code allowed the Raspberry Pi Pico to stand in for a Game Boy cartridge, complete with a simple text menu that let the user select between ROMs that had been baked into the microcontroller’s firmware. The project was pa... | 10 | 5 | [
{
"comment_id": "6361112",
"author": "bastetfurry",
"timestamp": "2021-07-01T09:33:33",
"content": "When micro-controllers get fast enough to bit-bang-emulate a ROM.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6361146",
"author": "Daid",
"... | 1,760,373,035.7887 | ||
https://hackaday.com/2021/06/30/smart-camera-based-on-google-coral/ | Smart Camera Based On Google Coral | Bryan Cockfield | [
"Machine Learning"
] | [
"artificial intelligence",
"face mask",
"Google Coral",
"license plate",
"machine learning",
"opencv",
"pytesseract",
"raspberry pi",
"usb accelerator",
"zero"
] | As machine learning and artificial intelligence becomes more widespread, so do the number of platforms available for anyone looking to experiment with the technology. Much like the single board computer revolution of the last ten years, we’re currently seeing a similar revolution with the number of platforms available ... | 8 | 4 | [
{
"comment_id": "6361082",
"author": "John",
"timestamp": "2021-07-01T05:10:33",
"content": "Google announces the discontinuation of Google Coral in 3….2…..1….",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6361089",
"author": "Truth",
"timestamp": "20... | 1,760,373,036.249364 | ||
https://hackaday.com/2021/06/27/video-de-shaker-software-measures-linear-rail-quality/ | Video De-shaker Software Measures Linear Rail Quality | Donald Papp | [
"cnc hacks",
"Video Hacks"
] | [
"cnc",
"linear rail",
"odometry",
"stabilization",
"video",
"virtualdub"
] | Here’s an interesting experiment that
attempts to measure the quality of a linear rail by using a form of visual odometry
, accomplished by mounting a camera on the rail and analyzing the video with open-source software usually used to stabilize shaky video footage. No linear rail is perfect, and it should be possible ... | 15 | 11 | [
{
"comment_id": "6359893",
"author": "diane",
"timestamp": "2021-06-27T11:11:56",
"content": "This may be one of the best parts of hacking, identifying slight imperfections to narrow the gap to total perfection",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "63... | 1,760,373,036.00534 | ||
https://hackaday.com/2021/06/27/mechanical-7-segment-display-uses-a-single-motor/ | Mechanical 7-Segment Display Uses A Single Motor | Danie Conradie | [
"Misc Hacks"
] | [
"3d printed",
"7 segment",
"automaton",
"gzumwalt",
"mechanical display"
] | Seven-segment displays have been around for a long time, and there is a seemingly endless number of ways to build them. The latest of is a
mechanical seven-segment
from a master of 3D printed mechanisms, [gzumwalt], and can use a single motor to cycle through all ten possible numbers.
The trick lies in a synchronized p... | 29 | 10 | [
{
"comment_id": "6359879",
"author": "Jon H",
"timestamp": "2021-06-27T08:07:28",
"content": "It’d be nice if the red segment pivoting into place caused a black panel to move out of the way, and the red segment pivoting away allowed the black panel to move back and close the gap.",
"parent_id": ... | 1,760,373,036.069168 | ||
https://hackaday.com/2021/06/26/coding-a-custom-driver-for-the-adafruit-mini-thermal-printer/ | Coding A Custom Driver For The Adafruit Mini Thermal Printer | Lewin Day | [
"Peripherals Hacks"
] | [
"printer",
"thermal printer"
] | Thermal printers are cool… or, uh, warm actually. They use heat to make images, so they never need ink and they print on receipt rolls. The thermal printer available from Adafruit is a particularly tasty example, as it comes fully documented for the budding hacker. [Ed] is one such person,
who set about writing his own... | 6 | 4 | [
{
"comment_id": "6359884",
"author": "Anonym",
"timestamp": "2021-06-27T08:36:17",
"content": "…a proper Micropython driver for this printer would be really cool",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359994",
"author": "Yeshua Watson",
... | 1,760,373,036.568227 | ||
https://hackaday.com/2021/06/26/emulating-a-power-grid/ | Emulating A Power Grid | Bryan Cockfield | [
"Software Hacks"
] | [
"cloud",
"electricity",
"fiware",
"model",
"modular",
"open source",
"power grid",
"research",
"simulation"
] | The electric power grid, as it exists today, was designed about a century ago to accommodate large, dispersed power plants owned and controlled by the utilities themselves. At the time this seemed like a great idea, but as technology and society have progressed the power grid remains stubbornly rooted in this past. Eff... | 23 | 9 | [
{
"comment_id": "6359845",
"author": "Ostracus",
"timestamp": "2021-06-27T02:51:08",
"content": "“Researchers in Europe like the ones developing LEGOS are ahead of the curve, as smart grid technology continues to filter in to all areas of the modern electrical infrastructure.”And then we have storie... | 1,760,373,037.15456 | ||
https://hackaday.com/2021/06/26/custom-3d-printer-cart-hides-clever-features/ | Custom 3D Printer Cart Hides Clever Features | Tom Nardi | [
"3d Printer hacks",
"Tool Hacks"
] | [
"3d printer",
"cart",
"NFC",
"ultimaker",
"workshop"
] | Even if you’ve got a decent sized workshop, there’s only so much stuff you can have sitting on the bench at one time. That’s why [Eric Strebel], ever the prolific maker,
decided to build this slick cart for his fairly bulky Ultimaker 3 Extended printer
. (Video, embedded below.) While the cart is obviously designed to ... | 8 | 4 | [
{
"comment_id": "6359830",
"author": "Mr Name Required",
"timestamp": "2021-06-27T00:18:27",
"content": "Nice build, really matches the printer aesthetic. I made my 3D Printer table from an IKEA BEKVÄM a few years back.https://www.ikea.com/gb/en/p/bekvaem-kitchen-trolley-birch-30240348/Surprisingly,... | 1,760,373,036.399504 | ||
https://hackaday.com/2021/06/26/lora-messenger-in-nokias-shell/ | LoRa Messenger In Nokia’s Shell | Jenny List | [
"Phone Hacks"
] | [
"LoRa",
"messenger",
"nokia",
"smartphone"
] | The arrival of LoRa a few years ago gave us at last an accessible licence-free UHF communication protocol with significant range. It’s closed-source, but there are plenty of modules available so it’s found its way into a variety of projects in our community over the years. Among them we’ve seen a few messaging devices,... | 30 | 16 | [
{
"comment_id": "6359783",
"author": "NiHaoMike",
"timestamp": "2021-06-26T20:13:39",
"content": "So a modern 2 way pager?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359974",
"author": "fhunter",
"timestamp": "2021-06-27T18:52:54",
... | 1,760,373,036.63949 | ||
https://hackaday.com/2021/06/26/raspberry-pi-pico-oscilloscope/ | Raspberry Pi Pico Oscilloscope | Danie Conradie | [
"Microcontrollers",
"Raspberry Pi",
"Tool Hacks"
] | [
"android app",
"oscilliscope",
"Raspberry Pi Pico"
] | As you dive deeper into the world of electronics, a good oscilloscope quickly is an indispensable tool. However, for many use cases where you’re debugging low voltage, low speed circuits, that expensive oscilloscope is using only a fraction of its capabilities. As a minimalist alternative
for these use cases [fhdm-dev]... | 50 | 19 | [
{
"comment_id": "6359740",
"author": "some guy",
"timestamp": "2021-06-26T17:04:02",
"content": "#advertSeriously, it’s basically useless and not even OS (and worse, with ads)? Why are you even talking about this?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,373,036.938916 | ||
https://hackaday.com/2021/06/26/how-did-i-live-without-a-microscope/ | How Did I Live Without A Microscope? | Elliot Williams | [
"Hackaday Columns",
"Rants"
] | [
"microscope",
"newsletter"
] | Get yourself a decent stereo inspection microscope, preferably optical. Something that can magnify from maybe 4x to 40x is fine, anything outside this range is icing on the cake. Some people claim they’re fine with a minimum of 10x, but if you go there, you’re going to need a reducing lens eventually. Either way, get o... | 48 | 28 | [
{
"comment_id": "6359708",
"author": "WereCatf",
"timestamp": "2021-06-26T14:17:41",
"content": "I don’t really have much use for a microscope, personally. The only uses for one would be for inspecting solder-joints and electronics, but I am getting by quite well with my phone’s camera and an app th... | 1,760,373,036.789273 | ||
https://hackaday.com/2021/06/26/can-the-solenoid-engine-power-a-car/ | Can The Solenoid Engine Power A Car? | Bryan Cockfield | [
"Engine Hacks"
] | [
"3d printer",
"arduino",
"car",
"crankshaft",
"drivetrain",
"electric",
"engine",
"solenoid",
"timing"
] | [Emiel] aka [The Practical Engineer] makes all kinds of fun projects in his fully-featured shop, and one of his tangents has been building a series of solenoid engines. These engines mimic the function of an internal combustion engine, with each solenoid acting as a piston. The only problem with [Emiel]’s concept engin... | 12 | 8 | [
{
"comment_id": "6359680",
"author": "Bill",
"timestamp": "2021-06-26T11:51:03",
"content": "Cool project",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6359699",
"author": "Ostracus",
"timestamp": "2021-06-26T13:56:07",
"content": "And for more Ru... | 1,760,373,037.266367 | ||
https://hackaday.com/2021/06/26/random-numbers-from-a-smoke-detector/ | Random Numbers From A Smoke Detector | Jenny List | [
"hardware"
] | [
"entropy",
"random number generator",
"smoke detector"
] | The quest for truly random numbers is something to which scientists and engineers have devoted a lot of time and effort. The trick is to find an unpredictable source of naturally occurring noise that can be sampled, so they have looked towards noisy gas discharge tubes or semiconductor junctions, and radioactive decay.... | 21 | 7 | [
{
"comment_id": "6359656",
"author": "diane",
"timestamp": "2021-06-26T08:44:07",
"content": "Apparently, the rate of radioactive decay is slightly affected by the rotation of the sun’s core every 33 days…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "63596... | 1,760,373,036.693919 | ||
https://hackaday.com/2021/06/25/pinet-one-small-project-grows-unexpectedly/ | PiNet — One Small Project Grows Unexpectedly | Chris Lott | [
"home hacks"
] | [
"diy home security",
"garage door opener",
"home automation",
"pool controller",
"python",
"raspberry pi"
] | A few years ago, [Gregory Sanders] aka [Dr Gerg] had one simple wish in mind when he started what is now
the PiNet project
— to know whether his garage door was open or closed. Instead of searching out off-the-shelf solutions, he looked at the project as a learning opportunity. After picking up Python, he built a syste... | 21 | 7 | [
{
"comment_id": "6359648",
"author": "Paul Delys",
"timestamp": "2021-06-26T06:07:33",
"content": "I have a home grown ESP8266/ESP32 system that monitors and alarms on water consumption (no well, no city water . . . I haul every drop of house water in my pickup truck), water tank level, freezer temp... | 1,760,373,036.849933 | ||
https://hackaday.com/2021/06/25/some-of-the-many-ways-to-build-am-transmitters-and-receivers/ | Some Of The Many Ways To Build AM Transmitters And Receivers | Danie Conradie | [
"Radio Hacks"
] | [
"am radio",
"AM receiver",
"AM Transmitter"
] | AM radios are relatively simple devices, and building one is a good way to start exploring the world of radio communications. [GreatScott] does exactly this
in the video after the break
, building both a transmitter and receiver.
At the most basic level, AM radio works by generating a carrier wave with an oscillator, a... | 10 | 6 | [
{
"comment_id": "6359634",
"author": "Jason Doege",
"timestamp": "2021-06-26T02:10:39",
"content": "Interesting article, Danie. It does need a serious once-over by an editor, though.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6359639",
"author": "ellis... | 1,760,373,037.766769 | ||
https://hackaday.com/2021/06/25/a-custom-clock-with-led-filament-hands/ | A Custom Clock With LED Filament Hands | Zach Zeman | [
"clock hacks"
] | [
"clock",
"ESP32",
"LED clock",
"LED filament",
"LED Filaments",
"ntp"
] | LEDs have become so ubiquitous in our projects that just hearing that term probably conjures images of tiny illuminated domes in an array of single-spectrum colors. It’s easy to forget that these efficient sources of light come in a variety of form factors, including the retro-tacular filaments that [bitborked] used to... | 13 | 8 | [
{
"comment_id": "6359617",
"author": "Hirudinea",
"timestamp": "2021-06-25T23:11:57",
"content": "Sweet, and it has a very 50’s aesthetic. Does he share the PCB?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359688",
"author": "sander",
"ti... | 1,760,373,036.991017 | ||
https://hackaday.com/2021/06/25/casting-a-simple-3d-print-in-aluminium/ | Casting A Simple 3D Print In Aluminium | Lewin Day | [
"3d Printer hacks"
] | [
"aluminium casting",
"cast",
"casting",
"gravity casting"
] | 3D printing with plastics and resins is great for quickly prototyping parts with all manner of geometries, but strength and durability of the parts produced is often limited. One way around this is to use your 3D printed parts as patterns for casting in something tougher like aluminium.
That’s precisely what [Brian Olt... | 21 | 8 | [
{
"comment_id": "6359589",
"author": "MacAttack",
"timestamp": "2021-06-25T21:09:33",
"content": "Nice demonstration of casting and interesting that he shows the importance of draft angles, only then to go on to show they weren’t important in this casting.",
"parent_id": null,
"depth": 1,
... | 1,760,373,037.220188 | ||
https://hackaday.com/2021/06/28/measuring-plancks-constant-with-leds-and-a-dmm/ | Measuring Planck’s Constant With LEDs And A DMM | Dan Maloney | [
"Misc Hacks"
] | [
"constant",
"electron",
"led",
"photon",
"physics",
"Planck",
"quantum mechanics"
] | The remarkable thing about our universe is that it’s possible to explore at least some of its inner workings with very simple tools. Gravity is one example, to which [Galileo]’s inclined planes and balls bear witness. But that’s classical mechanics: surely the weirdness that is quantum mechanics requires far more sophi... | 21 | 9 | [
{
"comment_id": "6360101",
"author": "Jon H",
"timestamp": "2021-06-28T08:33:08",
"content": "Optimal results would probably be had by using a darkened room and covering one eye until it dark-adjusts, and using that eye to spot the LED’s light.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,373,037.468496 | ||
https://hackaday.com/2021/06/27/miata-sci-fi-digital-dash/ | Miata Sci-Fi Digital Dash | Matthew Carlson | [
"Arduino Hacks",
"car hacks"
] | [
"arduino",
"custom dash",
"mazda miata",
"miata",
"star trek"
] | One of the hardest, but sometimes best, things you can do for a project is to walk away. [Jroobi] had spent hundreds of hours crafting
the digital dash for his MX5 Miata
(video, embedded below) and after spending far too long chasing down I2C bugs, he made the difficult decision to step away for a while. However, as of... | 26 | 12 | [
{
"comment_id": "6360082",
"author": "mime",
"timestamp": "2021-06-28T06:08:44",
"content": "I like it a lot.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6360094",
"author": "Deka",
"timestamp": "2021-06-28T07:46:06",
"content": "Where do I send... | 1,760,373,038.237057 | ||
https://hackaday.com/2021/06/27/turning-a-mig-welder-into-a-metal-3d-printer/ | Turning A MIG Welder Into A Metal 3D Printer | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"mig",
"mig welder"
] | Metal 3D printers are, by and large, many times more expensive than their FDM and resin-based brethren. It’s a shame, because there’s plenty of projects that would benefit from being able to produce more heat-resistant metal parts with additive fabrication methods. [Integza]’s rocketry projects are one such example, so... | 70 | 31 | [
{
"comment_id": "6360050",
"author": "Jon H",
"timestamp": "2021-06-28T02:42:32",
"content": "It’s probably going to require a full-on heavy welding table as a building platform, probably wouldn’t hurt for the surface being printed on to have multiple threaded studs welded on the underside, so that ... | 1,760,373,037.570936 | ||
https://hackaday.com/2021/06/27/hackaday-links-june-27-2021/ | Hackaday Links: June 27, 2021 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"apple",
"atm",
"bank",
"card",
"drone",
"fuctional print. helmet",
"goat",
"hackaday links",
"helicopter",
"iCloud",
"shimmer",
"skimmer",
"theft",
"UAS",
"western digital"
] | When asked why he robbed banks, career criminal Willie Sutton is reported to have said, “Because that’s where the money is.” It turns out that a reporter made up the quote, but it’s a truism that offers by extension insight into why ATMs and point-of-sale terminals are such a fat target for criminals today. There’s som... | 24 | 12 | [
{
"comment_id": "6360020",
"author": "Hirudinea",
"timestamp": "2021-06-27T23:26:11",
"content": "“While we certainly don’t condone criminal behavior, sometimes you just can’t help but admire the ingenuity thieves apply to their craft.” Someone who can make wine in a prison toilet can do anything!",... | 1,760,373,037.636345 | ||
https://hackaday.com/2021/06/27/ad409-microscope-review/ | AD409 Microscope Review | Al Williams | [
"Reviews",
"Tool Hacks"
] | [
"AD409",
"microscope"
] | It wasn’t that long ago that if you had an optical microscope in your electronics shop, you had a very well-supplied shop indeed. Today, though, a microscope is almost a necessity since parts have shrunk to flyspeck-size. [Maker Mashup] recently picked up an AD409 and posted
a video review
of the device that you can se... | 20 | 10 | [
{
"comment_id": "6359989",
"author": "Michael Black",
"timestamp": "2021-06-27T20:17:01",
"content": "I had a Tasco microscope when I was eight, it’s still around.These broad statements need defining. Most electronic hobbyists didn’t use microscopes for electronics because they weren’t needed.And I... | 1,760,373,038.174692 | ||
https://hackaday.com/2021/06/27/listen-to-the-rf-around-you/ | Listen To The RF Around You | Danie Conradie | [
"Radio Hacks"
] | [
"falstad",
"foxhunting",
"radio direction finding",
"receiver"
] | These days, we are spoiled for choice with regard to SDRs for RF analysis, but sometimes we’re more interested in the source of RF than the contents of the transmission. For this role, [Drew] created the
RFListener
, a wideband directional RF receiver that converts electromagnetic signal to audio.
The RF Listener is bu... | 21 | 9 | [
{
"comment_id": "6359966",
"author": "George White",
"timestamp": "2021-06-27T18:02:38",
"content": "You don’t realize how much RF is around yuo, not only at home, but anywhere you go.All your local AM, FM, and TV stations, the public service bands, police, fire,medical, and the CB’ers and ham opera... | 1,760,373,037.822633 | ||
https://hackaday.com/2021/06/27/electric-rc-plane-flies-for-almost-11-hours/ | Electric RC Plane Flies For Almost 11 Hours | Danie Conradie | [
"drone hacks"
] | [
"electric airplane",
"endurance",
"lithium ion",
"RC airplane",
"solar power"
] | Electric RC aircraft are not known for long flight times, with multirotors usually doing 20-45 minutes, while most fixed wings will struggle to get past two hours. [Matthew Heiskell] blew these numbers out of the water with a
10 hour 45 minute flight
with an RC plane on battery power. Condensed video after the break.
F... | 45 | 15 | [
{
"comment_id": "6359926",
"author": "Joe",
"timestamp": "2021-06-27T14:25:43",
"content": "If you’re gonna do that to your LiPo’s, you might as well just use disposable batteries. Higher energy to weight and it’ll be cheaper than destroying expensive lithium cells every flight.",
"parent_id": n... | 1,760,373,037.908341 | ||
https://hackaday.com/2021/06/28/retrofitting-fast-charging-to-a-nissan-leaf-ev/ | Retrofitting Fast Charging To A Nissan Leaf EV | Lewin Day | [
"car hacks"
] | [
"chademo",
"electric vehicle",
"ev",
"Leaf",
"nissan",
"Nissan Leaf"
] | Electric cars have been around for a while now, and thus they’re starting to get chopped up and modded just like any other car. [Daniel Öster] is one such person doing the work,
and recently posted his efforts to retrofit fast charging to an base-model Nissan Leaf that didn’t ship with the feature.
[Daniel] uses specia... | 21 | 8 | [
{
"comment_id": "6360309",
"author": "Nick",
"timestamp": "2021-06-28T23:09:10",
"content": "Safety Third.Which is not to denigrate this project at all. If safety were truly first, nothing worthwhile would ever get done.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comm... | 1,760,373,037.975147 | ||
https://hackaday.com/2021/06/28/a-modern-take-on-the-luggable-computer/ | A Modern Take On The “Luggable” Computer | Tom Nardi | [
"computer hacks"
] | [
"all-in-one",
"aluminum extrusion",
"Case mod",
"luggable"
] | Back before the industry agreed on the now ubiquitous clamshell form factor of portable computers, there were a class of not-quite-desktop computers that the community affectionately refers to as “luggable” PCs. These machines, from companies like Kaypro and Osborne, were only portable in the sense that their integrate... | 25 | 11 | [
{
"comment_id": "6360271",
"author": "GameboyRMH",
"timestamp": "2021-06-28T20:10:38",
"content": "I wanted a gaming PC in this form factor so bad when I was a teenager. Gaming PCs needed to be a lot bulkier back then, they had optical drives in them and hard drives with big heatsinks, and no mere m... | 1,760,373,038.69321 | ||
https://hackaday.com/2021/06/28/ten-projects-won-the-rethink-displays-round-of-the-hackaday-prize/ | Ten Projects Won The Rethink Displays Round Of The Hackaday Prize | Mike Szczys | [
"contests",
"Roundup",
"The Hackaday Prize"
] | [
"2021 Hackaday Prize"
] | We asked you to rethink what displays can look like and you didn’t disappoint. From almost 150 entries the judges have winnowed the list down to ten projects which are awarded a $500 prize and will go on to the final round of the
2021 Hackaday Prize
in October.
In a world where there’s an HD (or better) display in ever... | 2 | 2 | [
{
"comment_id": "6360340",
"author": "PWalsh",
"timestamp": "2021-06-29T03:42:52",
"content": "Wow! That volumetric display is awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6360402",
"author": "Madaeon",
"timestamp": "2021-06-29T08:49:34",
... | 1,760,373,038.278811 | ||
https://hackaday.com/2021/06/28/despite-uncertainty-wwii-warbirds-resume-tours/ | Despite Uncertainty, WWII Warbirds Resume Tours | Tom Nardi | [
"Featured",
"History",
"Slider"
] | [
"air show",
"B-17",
"B-29",
"history",
"Nine-O-Nine",
"tour",
"Warbird",
"wwii"
] | Back in September of 2019, I had the opportunity to climb aboard the restored B-17G bomber
Nine-O-Nine
as part of a national “Wings of Freedom” airport tour operated by the Collings Foundation. I was excited to get up close and personal with such an iconic aircraft, particularity since Hackaday gave me a platform to sh... | 26 | 11 | [
{
"comment_id": "6360239",
"author": "gregg4",
"timestamp": "2021-06-28T17:27:21",
"content": "Since when did Boeing make the B-24? She was designed and first built by Consolidated. Her airframe was also used for the PBY design.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,373,038.494089 | ||
https://hackaday.com/2021/06/28/lego-microscope-aims-to-discover-future-scientists/ | Lego Microscope Aims To Discover Future Scientists | Dan Maloney | [
"Misc Hacks"
] | [
"camera",
"lego",
"lens",
"microscope",
"objective",
"ocular",
"optics",
"smart phone",
"stem"
] | When it comes to inspiring a lifelong appreciation of science, few experiences are as powerful as that first glimpse of the world swimming in a drop of pond water as seen through a decent microscope. But sadly, access to a microscope is hardly universal, denying that life-changing view of the world to far too many peop... | 7 | 3 | [
{
"comment_id": "6360215",
"author": "mrehorst",
"timestamp": "2021-06-28T15:52:37",
"content": "You can get sharper results from cheap lenses by limiting the light spectrum used to illuminate the object being observed. Human eyes are very sensitive to green light, so using a green LED can give nice... | 1,760,373,038.325685 | ||
https://hackaday.com/2021/06/28/we-all-need-a-win-sometimes-so-make-them-yourself/ | We All Need A Win Sometimes, So Make Them Yourself | Donald Papp | [
"Featured",
"Lifehacks",
"Original Art",
"Slider"
] | [
"life on contract",
"mental health",
"work planning"
] | We all need the occasional win when it comes to work or personal projects. Being able to feel that payoff of progress and satisfaction is deeply important, because if everything is always uphill, that’s a recipe for burnout. Avoiding that is important enough to explore how to set oneself up for a few easy wins.
Getting... | 39 | 12 | [
{
"comment_id": "6360183",
"author": "Greg A",
"timestamp": "2021-06-28T14:30:20",
"content": "parenthood grumble",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6360203",
"author": "J",
"timestamp": "2021-06-28T15:19:06",
"content": "... | 1,760,373,038.423834 | ||
https://hackaday.com/2021/06/28/a-phone-that-old-shouldnt-be-running-android/ | A Phone That Old Shouldn’t Be Running Android | Jenny List | [
"Cellphone Hacks"
] | [
"cellphone",
"flip phone",
"smartwatch"
] | Cars and smartphones have something curious in common, just as most everyday saloon cars from different manufacturers have tended towards similarity, so have smartphones. Whether your smartphone the latest and greatest or only cost you $50 from a supermarket, it matters little to look at because both phones will be sup... | 23 | 13 | [
{
"comment_id": "6360128",
"author": "macsimski",
"timestamp": "2021-06-28T11:16:43",
"content": "Oh. For a moment i thought i could revamp my trusty Nokia N8 with that marvelous camera. :(But a nice hack indeed!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id":... | 1,760,373,038.630993 | ||
https://hackaday.com/2021/06/25/will-we-soon-be-running-linux-on-sifive-cores-made-by-intel/ | Will We Soon Be Running Linux On SiFive Cores Made By Intel? | Jenny List | [
"Parts"
] | [
"intel",
"RISC-V",
"SiFive"
] | There’s an understandably high level of interest in RISC-V processors among our community, but while we’ve devoured the various microcontroller offerings containing the open-source core it’s fair to say we’re still waiting on the promise of more capable hardware for anything like an affordable price. This could however... | 38 | 11 | [
{
"comment_id": "6359544",
"author": "tytytyy",
"timestamp": "2021-06-25T18:40:27",
"content": "closed blob and closed micro instruction ;(but if it will be faster than raspberry pi /odroid etc and cost will be cheapest….",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,373,038.572477 | ||
https://hackaday.com/2021/06/25/know-audio-a-loudspeaker-primer/ | Know Audio: A Loudspeaker Primer | Jenny List | [
"Hackaday Columns",
"home entertainment hacks"
] | [
"audio",
"hi-fi",
"know audio",
"loudspeaker",
"speaker"
] | As we’ve started out on our journey through the world of Hi-Fi audio from a strictly practical and engineering viewpoint without being misled by any audiophile woo, we’ve already taken a look at the most important component in any audio system: the listener’s ear. It’s time to move down the chain to the next link; the ... | 27 | 11 | [
{
"comment_id": "6359548",
"author": "Alex99a",
"timestamp": "2021-06-25T19:09:58",
"content": "I was really hoping for more on the crossover than one picture.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6359582",
"author": "Elliot Williams",
... | 1,760,373,038.763855 |
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