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https://hackaday.com/2019/09/04/a-teeny-tiny-3d-printed-macro-extension-tube/ | A Teeny Tiny 3D Printed Macro Extension Tube | Tom Nardi | [
"digital cameras hacks"
] | [
"3d printed",
"camera",
"canon",
"Canon EF-S",
"lens adapter",
"photography"
] | When you hear the term “extension tube”, you probably think of something fairly long, right? But when [Loudifier] needed an extension tube to do extreme close-ups with a wide-angle lens on a Canon EF-M camera, it needed to be small…really small. The final 3D printed extension
provides an adjustable length between 0 and... | 10 | 3 | [
{
"comment_id": "6177212",
"author": "Arjan Wiegel",
"timestamp": "2019-09-05T06:15:44",
"content": "The electrical connections should not be too hard. I made a reverse lens-mount including electrical connections using an old broken EF-S lens and an old SLR body. The spring loaded connections block ... | 1,760,373,775.673 | ||
https://hackaday.com/2019/09/04/tinygo-brings-go-to-arduino/ | TinyGo Brings Go To Arduino | Al Williams | [
"Arduino Hacks",
"ARM",
"Software Development"
] | [
"bbc microbit",
"Go",
"golang",
"tinygo"
] | Go — a modern programming language with roots at Google — is one of the new generation languages that would like to unseat C (and C++) for what we think of as traditional programming. It is only for PCs, though, right? Not so fast!
TinyGo
provides a compiler that — in their words — is for small places. How small? They ... | 25 | 7 | [
{
"comment_id": "6177181",
"author": "gregg4",
"timestamp": "2019-09-05T02:20:49",
"content": "And this was last week’s news. Next! Incidentally Al, Parallax called, they want you back.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6177183",
"author": "Re... | 1,760,373,775.975484 | ||
https://hackaday.com/2019/09/04/eagle-reborn-f-15-simulator-from-a-wreck/ | Eagle Reborn: F-15 Simulator From A Wreck | Maya Posch | [
"Repair Hacks",
"Weapons Hacks"
] | [
"f-15",
"f15c",
"flight simulator"
] | This story started all the way back in September 12, 1981, when an F-15C aircraft’s landing attempt at Soesterberg Airbase during an airshow went completely FUBAR and the airframe was scrapped. The forward fuselage section was sold and eventually ended up with [Gene Buckle] who began work on creating a fully accurate F... | 37 | 8 | [
{
"comment_id": "6177140",
"author": "Brian",
"timestamp": "2019-09-04T23:10:14",
"content": "“which at the time of the crash had flown only 9.5 hours total”Sounds like someone needed more time in a simulator like this before actually flying.",
"parent_id": null,
"depth": 1,
"replies": [... | 1,760,373,775.749894 | ||
https://hackaday.com/2019/09/07/putting-3d-printed-speaker-drivers-to-the-test/ | Putting 3D Printed Speaker Drivers To The Test | Tom Nardi | [
"Musical Hacks",
"Peripherals Hacks"
] | [
"3d printed",
"audio",
"frequency response",
"speaker",
"speaker driver"
] | Over the years, we’ve seen numerous projects that attempted to 3D print speaker enclosures that deliver not only a bit of custom flair, but hopefully halfway decent sound. Though as you’d probably expect, the drivers themselves are always standard run-of-the mill hardware mounted into the plastic enclosure.
But given t... | 15 | 6 | [
{
"comment_id": "6177916",
"author": "Collie147",
"timestamp": "2019-09-07T14:11:33",
"content": "3D printing the diaphragm too?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6177918",
"author": "Mart",
"timestamp": "2019-09-07T14:25:17",
"content... | 1,760,373,775.916803 | ||
https://hackaday.com/2019/09/07/complex-impedences-without-the-pain/ | Complex Impedances Without The Pain | Jenny List | [
"Radio Hacks"
] | [
"complex impedance",
"impedance",
"RF",
"vna"
] | Any grizzled electronic engineer will tell you that RF work is
hard
. Maintaining impedance matching may be a case of cutting wires to length at lower frequencies, but into the low centimetre and millimetre wavelengths it becomes a Dark Art aided by mysterious and hugely expensive test equipment beyond the reach of mer... | 13 | 5 | [
{
"comment_id": "6177904",
"author": "Ostracus",
"timestamp": "2019-09-07T12:08:54",
"content": "“It’s not a method for the faint-hearted as the mathematics are of the variety that you probably learned as an undergraduate but let slip from your memory with thanks after the course ended. ”But…but…we’... | 1,760,373,775.472696 | ||
https://hackaday.com/2019/09/07/homebrew-oscillator-is-in-a-glass-by-itself/ | Homebrew Oscillator Is In A Glass By Itself | Kristina Panos | [
"Laser Hacks",
"Misc Hacks"
] | [
"oscillator",
"phototransistor",
"wine glass",
"wine glass oscillator"
] | Great things happen when we challenge ourselves. But when someone else says ‘I bet you can’t’ and you manage to pull it off, the reward is even greater. After [WilkoL] successfully made a tuning fork oscillator, his brother challenged him to
make one out of a wine glass
. We’ll drink to that!
First, [WilkoL] needed to ... | 8 | 5 | [
{
"comment_id": "6177896",
"author": "Freddie Chopin",
"timestamp": "2019-09-07T09:15:51",
"content": "I wonder if you could use a toilet seat made of quartz as a frequency source for microcontroller. I’ve looked and can’t find anything similar (only a number of examples).I’ve also seen some quartz ... | 1,760,373,775.614367 | ||
https://hackaday.com/2019/09/06/portable-ps2-with-a-side-of-pi/ | Portable PS2 With A Side Of Pi | Lewin Day | [
"Playstation Hacks"
] | [
"playstation 2",
"portable console",
"ps2"
] | Home games consoles have occupied a special space in the marketplace over the last 3 decades. The crowning jewels of their respective companies, they inspired legions of diehard fans and bitter enmities against followers of alternative hardware. For some, a mere handheld is a watered down experience that simply won’t d... | 5 | 3 | [
{
"comment_id": "6177892",
"author": "Marvin",
"timestamp": "2019-09-07T08:44:21",
"content": "Very cool!Maybe a Pi zero with a small USB to LAN adapter would be even smaller, plus you wouldn‘t have to trim down a „big“ Pi, and you can put the small adapter PCB really close to the LAN lines on the P... | 1,760,373,775.565982 | ||
https://hackaday.com/2019/09/06/linux-fu-interactive-ssh-applications/ | Linux Fu: Interactive SSH Applications | Al Williams | [
"Linux Hacks"
] | [
"linux",
"rbash",
"ssh",
"sshd"
] | [Drew DeVault] recently wrote up some interesting instructions on how to
package up interactive text-based Linux commands
for users to access via ssh. At first, this seems simple, but there are quite a few nuances to it and [Drew] does a good job of covering them.
One easy way — but not very versatile — is to create a ... | 4 | 3 | [
{
"comment_id": "6178011",
"author": "12AU76L6GC",
"timestamp": "2019-09-08T06:10:55",
"content": "I guess I’m missing the point. You can run remotely any application with full graphic (or. not) with xterm over an ssh tunnel. Easy peasy with PuTTy /Xming on windows and simple command line on Linux…... | 1,760,373,775.525435 | ||
https://hackaday.com/2019/09/06/who-needs-four-wheels-when-youve-got-a-gyro/ | Who Needs Four Wheels When You’ve Got A Gyro? | Lewin Day | [
"Transportation Hacks"
] | [
"gyro",
"gyroscope",
"gyroscopic"
] | Your garden variety car generally comes with four wheels, plus a spare in the boot. It’s a number landed upon after much consideration, with few vehicles deviating from the norm. That doesn’t mean there aren’t other possibilities however,
and [RCLifeOn] decided to experiment in just such a manner.
The result is a gyro-... | 15 | 10 | [
{
"comment_id": "6177847",
"author": "Andy Pugh",
"timestamp": "2019-09-06T23:49:28",
"content": "He does mention the 1950s version, but the idea goes back at least as far as 1911 with the first working example in 1912.https://en.wikipedia.org/wiki/GyrocarAll great fun, all rather pointless…",
"... | 1,760,373,775.804828 | ||
https://hackaday.com/2019/09/06/reading-the-water-meter-in-a-literal-sense-with-an-esp8266/ | Reading The Water Meter In A Literal Sense With An ESP8266 | Tom Nardi | [
"digital cameras hacks",
"home hacks",
"Microcontrollers"
] | [
"ESP8266",
"optical character recognition",
"utilities",
"VC0706",
"Water Meter",
"Wemos d1"
] | In our info-obsessed culture, hackers are increasingly interested in ways to quantify the world around them. One popular project is to collect data about their home energy or water consumption to try and identify any trends or potential inefficiencies. For safety and potentially legal reasons, this usually has to be do... | 15 | 10 | [
{
"comment_id": "6177798",
"author": "Nate B",
"timestamp": "2019-09-06T20:36:55",
"content": "Some matte black paint on the inside of that snoot would cut down on a lot of the haze in the image.This is seriously cool! Very similar to something I proposed years ago:https://www.halfbakery.com/idea/Ch... | 1,760,373,775.860797 | ||
https://hackaday.com/2019/09/05/pcie-multiplier-expands-raspberry-pi-4-possibilities/ | PCIe Multiplier Expands Raspberry Pi 4 Possibilities | Tom Nardi | [
"hardware",
"Raspberry Pi"
] | [
"Device Tree",
"multiplier",
"pci express",
"PCIe",
"Raspberry Pi 4",
"Raspbian"
] | It probably goes without saying that hardware hackers were excited when the Raspberry Pi 4 was announced, but it wasn’t just because there was a new entry into everyone’s favorite line of Linux SBCs. The new Pi offered a number of compelling hardware upgrades, including an onboard PCI-Express interface. The only proble... | 35 | 14 | [
{
"comment_id": "6177569",
"author": "Xeon",
"timestamp": "2019-09-06T05:15:20",
"content": "Someone should create a port to fit in place of the chip so doing this mod can be a breeze.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6177582",
"author"... | 1,760,373,776.391714 | ||
https://hackaday.com/2019/09/05/ham-radio-company-wins-big/ | Ham Radio Company Wins Big | Al Williams | [
"Radio Hacks"
] | [
"Air Force",
"flexradio",
"ham radio",
"sdr",
"software-defined radio",
"USAF"
] | It is sort of the American dream: start a company in your garage and have it get crazy big. After all, Steve Jobs, Bill Gates, and even Bill Hewlett and Dave Packard did it. Seems hard to do these days, though. However, one ham radio company that has been pushing the edge of software defined radio appears to be well on... | 39 | 12 | [
{
"comment_id": "6177554",
"author": "Jerry",
"timestamp": "2019-09-06T02:42:55",
"content": "Sweet.. I wish I was that smart..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6177566",
"author": "starhawk",
"timestamp": "2019-09-06T04:58:22",... | 1,760,373,776.701233 | ||
https://hackaday.com/2019/09/05/handmade-led-cube-is-a-work-of-art/ | Handmade LED Cube Is A Work Of Art | Lewin Day | [
"LED Hacks"
] | [
"fpga",
"led",
"LED cube"
] | We see all kinds of projects come across the news desk at Hackaday. Sometimes it’s a bodge, neatly executed, that makes us laugh out loud at its simple ingenuity. Other times, it’s a case of great skill and attention to detail, brought to bear to craft something of great beauty.
[Greg Davill]’s LED cube is firmly the l... | 18 | 5 | [
{
"comment_id": "6177536",
"author": "Simon",
"timestamp": "2019-09-06T00:19:21",
"content": "Interesting keyboard in the background…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6177541",
"author": "Anthony Selby",
"timestamp": "2019-09-06... | 1,760,373,776.314828 | ||
https://hackaday.com/2019/09/05/print-a-drill-press-for-your-printed-circuit-boards/ | Print A Drill Press For Your Printed Circuit Boards | Ted Yapo | [
"3d Printer hacks",
"Tool Hacks"
] | [
"3d printed",
"dremel",
"drill press",
"pcb drill press",
"PCB etching"
] | If you make printed circuit boards the old fashioned way by etching them yourself, you may need to drill a lot of holes; even surface-mount converts still need header pins on occasion. But, drilling these holes by hand often leads to broken drill bits, which always seems to happen with one un-drilled hole and no spare ... | 14 | 8 | [
{
"comment_id": "6177531",
"author": "Saabman",
"timestamp": "2019-09-05T23:34:58",
"content": "No one is stopping you …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6177537",
"author": "Bob Collins",
"timestamp": "2019-09-06T00:29:31",
"content"... | 1,760,373,776.904854 | ||
https://hackaday.com/2019/09/05/hack-your-brain-to-stop-overeating/ | Hack Your Brain To Stop Overeating | Kristina Panos | [
"Lifehacks",
"Microcontrollers",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize"
] | Sometimes the easiest advice can be the hardest to follow. For example: if you want to lose weight, you must eat right and exercise. You can avoid both and still lose weight by simply eating less, but that takes willpower.
Losing weight is one of the hardest things a person can do, because we have to eat to survive. Th... | 30 | 14 | [
{
"comment_id": "6177448",
"author": "Josh",
"timestamp": "2019-09-05T18:55:50",
"content": "The United States is a country. Please fix. But cool hack!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6177457",
"author": "Americanist",
"timesta... | 1,760,373,776.972115 | ||
https://hackaday.com/2019/09/05/3d-printering-the-search-for-better-search/ | 3D Printering: The Search For Better Search | Tom Nardi | [
"3d Printer hacks",
"Hackaday Columns",
"Interest",
"Slider"
] | [
"3D design",
"3d model",
"cad",
"creative commons",
"geometric",
"open source",
"search engine",
"thingiverse"
] | There’s no question that a desktop 3D printer is at its most useful when it’s producing parts of your own design. After all, if you’ve got a machine that can produce physical objects to your exacting specifications, why not give it some? But even the most diligent CAD maven will occasionally defer to an existing design... | 48 | 16 | [
{
"comment_id": "6177433",
"author": "Dave Null",
"timestamp": "2019-09-05T18:09:22",
"content": "Prusa started their own site.http://prusaprinters.comIt allows sharing G-CODE which could lead to disasters.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6177... | 1,760,373,776.628083 | ||
https://hackaday.com/2019/09/05/this-led-cube-is-one-heck-of-an-icebreaker/ | This LED Cube Is One Heck Of An ICEBreaker | Lewin Day | [
"LED Hacks"
] | [
"fpga",
"icebreak",
"icebreaker",
"led",
"LED cube"
] | Like the tastes of the makers that build them, LED cubes come in all shapes and sizes. From the simplest 3x3x3 microcontroller test, to fancier bespoke installations, they’re a great way to learn a bunch of useful embedded techniques and show off at the same time. [kbob] has done exactly that in spades,
with a glitteri... | 7 | 5 | [
{
"comment_id": "6177441",
"author": "leor",
"timestamp": "2019-09-05T18:15:57",
"content": "Damn, that is gorgeous !",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6177455",
"author": "Wolf",
"timestamp": "2019-09-05T19:13:30",
"content": "Anyone ... | 1,760,373,776.744474 | ||
https://hackaday.com/2019/09/04/mechpen-scara-drawbot-for-the-big-picture/ | Mechpen: SCARA Drawbot For The Big Picture | Ted Yapo | [
"3d Printer hacks",
"Robots Hacks"
] | [
"drawbot",
"plotter",
"SCARA arm"
] | It’s not uncommon to find us doodling on paper as an aid to thinking, for recreation, or simply because we’re bored. But, this kind of manual labor is so last century. It’s 2019, and we should have robots to fill our notebooks with cross-hatched illustrations. Well, [Alex Weber] is way ahead of us on this account: the
... | 8 | 5 | [
{
"comment_id": "6177122",
"author": "Saar",
"timestamp": "2019-09-04T21:36:20",
"content": "Great Job. For more accuracy, I suggest to cut joints backlash with simple mechanical techniques; also maybe spaghetti bridge techniques can cut the weight of arms.",
"parent_id": null,
"depth": 1,
... | 1,760,373,776.533108 | ||
https://hackaday.com/2019/09/04/open-source-smart-smoker-brings-the-heat-slowly/ | Open Source Smart Smoker Brings The Heat (Slowly) | Tom Nardi | [
"cooking hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"cooking",
"grill",
"max6675",
"smoker",
"temperature-control",
"thermocouple"
] | Conceptually, cooking on a grill is simple enough: just crank up the flames and leave the food on long enough for it to cook through, but not so long that it turns into an inedible ember. But when smoking, the goal is actually to prevent flames entirely; the food is cooked by the circulation of hot gasses generated by ... | 18 | 7 | [
{
"comment_id": "6177052",
"author": "The Gambler",
"timestamp": "2019-09-04T18:46:30",
"content": "besides a smoker this looks like it could be super nice for a coffee bean roaster if one could possibly implement some type of a heating/cooling profile as well. that is if it is not already in there... | 1,760,373,776.803668 | ||
https://hackaday.com/2019/09/04/bornhack-2019-a-laid-back-hacker-camp-in-a-danish-forest/ | BornHack 2019, A Laid-Back Hacker Camp In A Danish Forest | Jenny List | [
"cons",
"Hackaday Columns"
] | [
"BornHack",
"Denmark",
"hacker camp"
] | This is a fantastic summer for hacker camps and I was very happy to make it to
BornHack
this year. This week-long camp attracts hackers from all over Europe and the mix of a few hundred friends and soon-to-be friends who gathered on the Danish island of Fyn delivered a unique experience for the curious traveller.
The c... | 11 | 5 | [
{
"comment_id": "6176993",
"author": "Rob",
"timestamp": "2019-09-04T17:31:41",
"content": "https://goo.gl/maps/GDHnJeiqPiMrYW7L9700+ miles near as I can tell.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6177267",
"author": "Jenny List",
"... | 1,760,373,776.856135 | ||
https://hackaday.com/2019/09/04/3d-printed-film-scanner-brings-family-memories-back-to-life/ | 3D-Printed Film Scanner Brings Family Memories Back To Life | Dan Maloney | [
"digital cameras hacks",
"Misc Hacks"
] | [
"digitize",
"ffmpeg",
"film",
"machine vision",
"movie",
"opencv",
"Pi Cam",
"raspberry pi",
"scanner"
] | There is a treasure trove of history locked away in closets and attics, where old shoeboxes hold reels of movie film shot by amateur cinematographers. They captured children’s first steps, family vacations, and parties where [Uncle Bill] was getting up to his usual antics. Little of what was captured on thousands of mi... | 14 | 6 | [
{
"comment_id": "6176964",
"author": "targetdrone",
"timestamp": "2019-09-04T16:42:34",
"content": "Nice! I’m looking forward to seeing the rest of the build instructions.How do you diffuse the light source? I tried several variants of using a projector and photographing the image, but the light al... | 1,760,373,777.12482 | ||
https://hackaday.com/2019/09/04/are-hydrogen-cars-still-happening/ | Are Hydrogen Cars Still Happening? | Lewin Day | [
"car hacks",
"Featured",
"Interest",
"Slider",
"Transportation Hacks"
] | [
"fuel cell",
"hydrogen",
"hydrogen car",
"hydrogen fuel cell",
"hydrogen grid",
"hydrogen powered"
] | Potentially coming to a service station near you.
In every comment section, there’s always one. No matter the electric vehicle, no matter how far the technology has come, there’s always one.
“Only 500 miles of range? Electric cars are useless! Me, and everyone I know, drives 502 miles every day at a minimum! Having to ... | 318 | 50 | [
{
"comment_id": "6176835",
"author": "Nadia Mayer",
"timestamp": "2019-09-04T14:09:12",
"content": "you forgot to mention that electrolysis is very very inefficient you’d be better off using the wind power to recharge the batteries in a car",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,777.75461 | ||
https://hackaday.com/2019/09/04/the-ultimate-guide-to-artisan-usb-cables/ | The Ultimate Guide To Artisan USB Cables | Tom Nardi | [
"Parts",
"Peripherals Hacks"
] | [
"braided",
"custom",
"heat shrink",
"usb",
"wiring"
] | If you’ve gone through the trouble of building your own customized mechanical keyboard, the last thing you want to do is plug it into your computer with some plebeian USB cable from the local electronics shop. Your productivity, nay livelihood, depends on all those 1s and 0s being reproduced with the crisp fidelity tha... | 45 | 13 | [
{
"comment_id": "6176788",
"author": "Coil",
"timestamp": "2019-09-04T11:26:09",
"content": "I’ve never thought to make long USB cables into a coil like that. Thanks!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176821",
"author": "Alex Rossie",
... | 1,760,373,777.842452 | ||
https://hackaday.com/2019/09/04/an-arduino-pro-micro-with-usb-c/ | An Arduino Pro Micro With USB-C | Jenny List | [
"Arduino Hacks"
] | [
"arduino",
"arduino pro micro",
"USB C"
] | USB-C versus USB Micro connectors are turning into one of the holy wars of our time. Rather than be left on the wrong side of the divide [Stefan S] has come up with
his own USB-C version of of an Arduino Pro Micro
to avoid having to always find a different cable.
Home made Arduinos come in all shapes and sizes from the... | 38 | 11 | [
{
"comment_id": "6176754",
"author": "xamiax",
"timestamp": "2019-09-04T08:18:09",
"content": "USB C ALL THE THINGS! \\o/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176817",
"author": "Jamesy Garfield",
"timestamp": "2019-09-04T13:19:50"... | 1,760,373,777.921244 | ||
https://hackaday.com/2019/09/03/3d-printer-emission-monitor-quantifies-the-stench/ | 3D Printer Emission Monitor Quantifies The Stench | Kristina Panos | [
"Lifehacks"
] | [
"air quality",
"CCS811",
"formaldehyde",
"neopixel ring",
"particle photon",
"piezo",
"VOC",
"VOC detection"
] | While we don’t yet know the long-term effects of hanging out around 3D printers, it doesn’t take a in-depth study to figure out that their emissions aren’t healthy. What smells toxic usually is toxic. Still, it’s oh-so-fun to linger and watch prints grow into existence, even when we have hundreds or thousands of hours ... | 14 | 7 | [
{
"comment_id": "6176734",
"author": "MichaelAtOz",
"timestamp": "2019-09-04T05:44:17",
"content": "That’s why I designed a 3D printed duct for a fan and a carbon air filter.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176739",
"author": "Jos Sch... | 1,760,373,777.304582 | ||
https://hackaday.com/2019/09/03/solar-harvesting-blinkenlights/ | Solar-Harvesting Blinkenlights | Bryan Cockfield | [
"Solar Hacks"
] | [
"blinken lights",
"epoxy",
"mold",
"solar",
"supercapacitor",
"throwie",
"ultracapacitor"
] | A few years ago a fad ripped through the makersphere where people would build cheap, solar powered LED blinkers, glue a magnet to them, and throw them on anything metal. It was an interesting time, but luckily did not last for too long. With some effort and craftsmanship, though, the solar throwie idea can be turned in... | 15 | 8 | [
{
"comment_id": "6176713",
"author": "eternityforest",
"timestamp": "2019-09-04T02:02:37",
"content": "These are amazing! Unlike original throwies which sucked.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176726",
"author": "Mike",
"timestamp": "20... | 1,760,373,778.10751 | ||
https://hackaday.com/2019/09/03/building-a-full-fat-air-quality-monitor/ | Building A Full-Fat Air Quality Monitor | Maya Posch | [
"green hacks",
"Science"
] | [
"air quality index",
"Air quality sensors",
"environmental monitoring",
"EPA",
"sensors"
] | Over the years many people have made an air quality monitor station, usually of some configuration which measures particulates (PM
2.5
& PM
10
). Some will also measure ozone (O
3
), but very few will meet the requirements that will allow one to calculate the Air Quality Index (AQI) as used by the EPA and other organiz... | 13 | 6 | [
{
"comment_id": "6176717",
"author": "Chris",
"timestamp": "2019-09-04T02:54:01",
"content": "Airbeam is a fully open source project that went through Kickstarter and has developed a better version of itself. Check it out",
"parent_id": null,
"depth": 1,
"replies": [
{
"com... | 1,760,373,777.976736 | ||
https://hackaday.com/2019/09/03/a-pocket-qwerty-for-arduino-and-more/ | A Pocket QWERTY For Arduino And More | Kristina Panos | [
"Arduino Hacks"
] | [
"arduino",
"keypad",
"qwerty"
] | If you want to add a keypad to your Arduino project, the options are pretty limited. There’s that red and blue 4×4 membrane we’ve all seen in password-protected door lock projects, and the phone layout version that does pretty much all the same tricks. Isn’t it time for a full Arduino-compatible keyboard? [ELECTRONOOBS... | 15 | 7 | [
{
"comment_id": "6176693",
"author": "Stuart Longland",
"timestamp": "2019-09-03T21:53:41",
"content": "I’d be adding series diodes to each key switch… these *can* be replaced with wire links if you want to be cheap, but putting diodes in will prevent ghosting when multiple keys are pressed simultan... | 1,760,373,778.160281 | ||
https://hackaday.com/2019/09/03/when-project-enclosures-go-bad-a-message-from-the-trenches/ | When Project Enclosures Go Bad: A Message From The Trenches | Maya Posch | [
"3d Printer hacks",
"The Hackaday Prize"
] | [
"3d printed enclosures",
"custom enclosures",
"enclosures",
"injection mold"
] | A wall-mounted, electric car charging station doesn’t sound like it’d require the most exciting or complicated enclosure. This was pretty much the assumption [Mastro Gippo] and his team started out with when they decided to turn what came back from a product designer
into a real enclosure
for the ‘Prism’ charging hardw... | 43 | 14 | [
{
"comment_id": "6176641",
"author": "butter fly",
"timestamp": "2019-09-03T18:52:08",
"content": "Kind of idiotic to take out a loan for injection molding with no investors or customers.Just stuff your crap in an (existing, tested, environmentally/electrically certified) ABS box for the first produ... | 1,760,373,778.24217 | ||
https://hackaday.com/2019/09/03/dian-fossey-gorilla-girl/ | Dian Fossey, Gorilla Girl | Kristina Panos | [
"Biography",
"Slider"
] | [
"black magic",
"conservation",
"Dian Fossey",
"gorillas",
"Karisoke",
"Louis Leakey",
"mountain gorillas",
"poaching",
"witchcraft"
] | Few people sacrifice themselves as completely as Dian Fossey did for the mountain gorillas of Africa. She fought tirelessly to protect them from poachers, cattle herders, zoo kidnappers, corrupt governments, and tourists. Dian left a comfortable life behind to make the misty slopes of an extinct volcano her home and he... | 37 | 11 | [
{
"comment_id": "6176623",
"author": "Ostracus",
"timestamp": "2019-09-03T17:09:19",
"content": "“The Prices refused to help Dian with college expenses once she eschewed the business path her stepfather laid out for a pre-veternarian program. ”I can see why. That’s a much harder program than the oth... | 1,760,373,778.059155 | ||
https://hackaday.com/2019/09/03/clean-water-technologies-hack-chat/ | Clean Water Technologies Hack Chat | Dan Maloney | [
"Hackaday Columns"
] | [
"crowdsource",
"education",
"electrocoagulation",
"filtering",
"outreach",
"purification",
"stem",
"The Hack Chat",
"water"
] | Join us on Wednesday, September 4th at noon Pacific for the
Clean Water Technologies Hack Chat
with
Ryan Beltrán
!
Access to clean water is something that’s all too easy to take for granted. When the tap is turned, delivering water that won’t sicken or kill you when you drink it, we generally stop worrying. But for mil... | 2 | 1 | [
{
"comment_id": "6176658",
"author": "Hirudinea",
"timestamp": "2019-09-03T20:03:32",
"content": "I wonder if electrocoagulation could be used to clean mirco (and macro) plastics from the oceans?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176663",
... | 1,760,373,778.287289 | ||
https://hackaday.com/2019/09/02/diy-40fps-16bpp-platformer-on-a-cortex-m0/ | DIY 40FPS 16bpp Platformer On A Cortex M0+ | Rich Hawkes | [
"Games",
"Retrocomputing",
"The Hackaday Prize"
] | [
"atsamd21",
"game console",
"uchip"
] | Sure, you can play a bunch of retro games on a Raspberry Pi, but if you’re really hardcore, you build your own retro console and write your own games for it. [Nicola Wrachien]’s entry into this year’s Hackaday prize is his
DIY Cortex M0+ game console
and the platform game he wrote to test the hardware.
The board that [... | 8 | 5 | [
{
"comment_id": "6176477",
"author": "danjovic",
"timestamp": "2019-09-02T21:20:34",
"content": "Impressive! Today we can build at home stuff that made companies like nintendo multimillionaires…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176498",
"aut... | 1,760,373,778.332583 | ||
https://hackaday.com/2019/09/02/process-characterization-on-the-cheap-with-a-custom-test-rig/ | Process Characterization On The Cheap With A Custom Test Rig | Lewin Day | [
"classic hacks",
"hardware"
] | [
"automated test",
"hardware testing",
"peltier",
"python",
"test fixture"
] | Testing is a key part of any product development cycle. Done right, it turns up unknown bugs and problems, and allows for them to be fixed prior to shipment. However, it can be a costly and time-consuming process. The [Bay Libre] team needed to do some work on power management, but the hardware required was just a litt... | 8 | 3 | [
{
"comment_id": "6176459",
"author": "sneakypoo",
"timestamp": "2019-09-02T18:34:30",
"content": "Measuring down to one 1/1000 of a degree. That doesn’t sound like “cheap” to me.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176492",
"author": "Pau... | 1,760,373,778.678546 | ||
https://hackaday.com/2019/09/02/faux-neon-sign-says-what-auf-deutsch/ | Faux-Neon Sign Says What?, Auf Deutsch | Ted Yapo | [
"LED Hacks"
] | [
"faux-neon",
"led",
"neon sign",
"RGB LED"
] | To a speaker of English, a sign asking ‘Was?” may not make much sense. In German, however, the question is a more thought-provoking “What?” That’s exactly the point of
this faux-neon sign created by [noniq]
. The sign uses silicone-enclosed “neon-like” LED strips to spell out the question for all to see — and ponder.
W... | 11 | 4 | [
{
"comment_id": "6176425",
"author": "gregg4",
"timestamp": "2019-09-02T14:02:47",
"content": "Feh. Now show me a sign which asks, “Do you speak Yiddish?”, in that dialect, then i’ll bite.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176488",
"aut... | 1,760,373,778.631097 | ||
https://hackaday.com/2019/09/02/after-the-con-da-bomb-badge-post-mortem/ | After The Con: Da Bomb Badge Post Mortem | Jenny List | [
"cons"
] | [
"badge",
"badgelife",
"da bomb",
"DEF CON",
"manufacturing",
"production",
"small"
] | We’ve reported on the world of electronic badges here at Hackaday since their earliest origins in [Joe Grand]’s work for DEF CON 14 in 2006. In that time we’ve seen an astonishing variety of creations, covering everything from abstract artwork to pure functionality in a wearable device. But it’s not been quite so often... | 0 | 0 | [] | 1,760,373,778.582542 | ||
https://hackaday.com/2019/09/02/misuse-this-part-to-attach-3d-printed-stuff-to-a-shaft/ | (Mis)use This Part To Attach 3D Printed Stuff To A Shaft | Donald Papp | [
"Parts",
"Robots Hacks"
] | [
"3d printed",
"coupling",
"gear",
"gearbox",
"jaw coupling",
"motor",
"shaft",
"spider coupling"
] | Interfacing a shaft to a 3D printed gear doesn’t have to be tricky. [Tlalexander] demonstrated a solution that uses one half of a spider coupling (or jaw coupling) to create an effective modular attachment. The picture above (and
this older link
) shows everything you need to know: the bottom of the coupling is mounted... | 16 | 8 | [
{
"comment_id": "6176381",
"author": "jaap",
"timestamp": "2019-09-02T08:39:16",
"content": "A+ in the art of misusing parts.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176409",
"author": "paul",
"timestamp": "2019-09-02T11:51:25",
... | 1,760,373,779.195088 | ||
https://hackaday.com/2019/09/01/scrapyard-milling-machine-gets-work-done-on-a-budget/ | Scrapyard Milling Machine Gets Work Done On A Budget | Dan Maloney | [
"Tool Hacks"
] | [
"casting",
"compound",
"cross feed",
"lathe",
"metalwork",
"mill",
"milling machine",
"spindle",
"taper"
] | Which to buy first, a lathe or a mill? It’s a tough question for the aspiring home machinist with limited funds to spend on machine tools, but of course the correct answer is a lathe. With a lathe, we are told, all other machine tools can be built, including a milling machine. Granted that might be a
slight
exaggeratio... | 22 | 8 | [
{
"comment_id": "6176357",
"author": "grinchy",
"timestamp": "2019-09-02T05:39:45",
"content": "Strange use of time and money unless you only want to mill aluminum, brass, and similarly soft materials.The metal removal rate for steel is going to be shit with that steel tubing construction for the Z ... | 1,760,373,779.255314 | ||
https://hackaday.com/2019/09/01/automate-sorting-your-trash-with-some-healthy-machine-learning/ | Automate Sorting Your Trash With Some Healthy Machine Learning | Maya Posch | [
"green hacks",
"Lifehacks"
] | [
"keras",
"machine learning",
"recycling",
"tensorflow",
"trash"
] | Sorting trash into the right categories is pretty much a daily bother. Who hasn’t stood there in front of the two, three, five or more bins (depending on your area and country), pondering which bin it should go into? [Alvaro Ferrán Cifuentes]’s
SeparAItor project
is a proof of concept robot that uses a robotic sorting ... | 10 | 7 | [
{
"comment_id": "6176368",
"author": "Travis Foster",
"timestamp": "2019-09-02T07:06:08",
"content": "Google Cardboard Wall-E",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176399",
"author": "Dan",
"timestamp": "2019-09-02T11:10:31",
"content": "... | 1,760,373,778.997538 | ||
https://hackaday.com/2019/08/31/race-rc-cars-from-anywhere-on-earth/ | Race RC Cars From Anywhere On Earth | Lewin Day | [
"Misc Hacks",
"Toy Hacks"
] | [
"ESP8266",
"GoPro",
"low latency",
"RACE",
"radio control",
"rc"
] | Racing games have come a long way over the years. From basic 2D sprite-based titles, they’ve evolved to incorporate advanced engines with highly realistic simulated physics that can even be used to help develop real-world automobiles. For [Surrogate.tv], that still wasn’t quite good enough,
so they decided to create so... | 9 | 7 | [
{
"comment_id": "6176187",
"author": "DXR",
"timestamp": "2019-09-01T06:22:18",
"content": "Another “cool project” on HaD but real 3D remote RC game idea from .UA is Isotopiumhttps://www.youtube.com/watch?v=M0Xc_HQkJwYthis is real 3D + real Monster in chemical mask :P",
"parent_id": null,
"d... | 1,760,373,779.309473 | ||
https://hackaday.com/2019/08/31/risc-v-uses-carbon-nanotubes/ | RISC-V Uses Carbon Nanotubes | Al Williams | [
"News"
] | [
"carbon nanotube",
"cnfet",
"cpu",
"nanotechnology"
] | In a recent article in Nature, you can find the details of a RISC-V CPU built
using carbon nanotubes
. Of course, Nature is a pricey proposition, but you can probably find the paper by its DOI number if you bother to look for it. The researchers point out that silicon transistors are rapidly reaching a point of diminis... | 3 | 3 | [
{
"comment_id": "6176206",
"author": "Alexander Wikström",
"timestamp": "2019-09-01T11:07:09",
"content": "“However, the DREAM design rules can increase the tolerance of the design to metallic CNFETs with no process changes.”It is a bit silly for both Nature (and other outlets) and the ones making t... | 1,760,373,779.352477 | ||
https://hackaday.com/2019/08/31/a-radio-transceiver-from-a-cable-modem-chipset/ | A Radio Transceiver From A Cable Modem Chipset | Jenny List | [
"News",
"Radio Hacks"
] | [
"cable modem",
"HF",
"radio",
"sdr"
] | It’s a staple of our community’s work, to make electronic devices do things their manufacturers never intended for them. Analogue synthesisers using CMOS logic chips for example, or microcontrollers that bitbang Ethernet packets without MAC hardware. One of the most fascinating corners of this field comes in the form o... | 11 | 5 | [
{
"comment_id": "6176146",
"author": "sidboyce",
"timestamp": "2019-08-31T20:49:43",
"content": "I built 2 of the original HermesLite 1.x and I have 2 of HermesLite2 Build5 and Build8 both modded to be the same as the latest Build9.It’s an amazing project – a 5W HF DDC/DUC SDR transceiver for under... | 1,760,373,778.948425 | ||
https://hackaday.com/2019/08/31/micropython-and-c-play-together-better/ | Micropython And C Play Together Better | Bryan Cockfield | [
"Microcontrollers",
"Software Development"
] | [
"api",
"c++",
"convert",
"embedded",
"library",
"microcontroller",
"micropython",
"python"
] | Python is a versatile, powerful language but sometimes it’s not the best choice, especially if you’re doing work in embedded systems with limited memory. Sometimes you can get away with MicroPython for these cases, but the best language is likely C or assembly. If you’re really stubborn, like [amirgon], and really want... | 20 | 8 | [
{
"comment_id": "6176115",
"author": "ScriptGiddy",
"timestamp": "2019-08-31T17:10:47",
"content": "As someone who is making a large personal effort to embrace MicroPython, this is greatly welcomed. Thank you!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "617... | 1,760,373,779.972349 | ||
https://hackaday.com/2019/08/31/spot-adulterated-olive-oil-with-this-spectrophotometer/ | Spot Adulterated Olive Oil With This Spectrophotometer | Jenny List | [
"Science"
] | [
"olive oil",
"raspberry pi",
"Spectrophotometer"
] | Olive oil at its finest quality is a product that brings alive the Mediterranean cuisine of which it is a staple. Unfortunately for many of us not fortunate enough to possess our own olive grove, commercial olive oils are frequently adulterated, diluted with cheaper oils such as canola. As consumers we have no way of k... | 27 | 16 | [
{
"comment_id": "6176079",
"author": "Tom",
"timestamp": "2019-08-31T14:23:50",
"content": "Bravo & grazzie!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176080",
"author": "Arcturus",
"timestamp": "2019-08-31T14:34:25",
"content": "Is a LED rea... | 1,760,373,779.415102 | ||
https://hackaday.com/2019/08/31/odd-sized-military-headphone-connectors-tamed/ | Odd-Sized Military Headphone Connectors, Tamed! | Jenny List | [
"Repair Hacks"
] | [
"connectors",
"headphones",
"retro"
] | Military headphones, at least the older ones, are like few other sound reproducers. They are an expression of function over form, with an emphasis on robustness over operator comfort. Electrically they most often have high-impedance drivers and annoyingly proprietary connectors for whichever obscure radio system they w... | 21 | 10 | [
{
"comment_id": "6176054",
"author": "Peter A Neilson",
"timestamp": "2019-08-31T11:59:02",
"content": "Those “pair of odd metal pins” are not odd. They are what was known as “phone tips” and will fit nicely into Fahnestock connectors that you might have on a breadboard layout that you put together ... | 1,760,373,779.473312 | ||
https://hackaday.com/2019/08/31/ai-poised-to-turn-the-internet-into-gibberish/ | AI Poised To Turn The Internet Into Gibberish | Pat Whetman | [
"internet hacks",
"Software Development"
] | [
"ai ethics",
"fake news",
"GPT language model",
"openai"
] | Last Thursday two lowly masters grad students, Aaron Gokaslan and Vanya Cohen managed to replicate the secretive OpenAI model and cheekily named
their version OpenGPT-2
. The code can be downloaded from this
Google Colab page
and apparently no prior experience in language modeling is required to use it. More useful mig... | 68 | 50 | [
{
"comment_id": "6176021",
"author": "Matt F",
"timestamp": "2019-08-31T08:29:37",
"content": "How much wood could a woodchuck chuck in a day? If he could chuck wood for a day, what would he make? A hundred times a minute? Maybe three hundred times a minute? That’s how much a timberchuck might make ... | 1,760,373,779.589588 | ||
https://hackaday.com/2019/09/01/hackaday-links-september-1-2019/ | Hackaday Links: September 1, 2019 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"amateur",
"aurora",
"emcomm",
"geomagnetic storm",
"ham",
"hurricane",
"NOAA 15",
"satellite",
"storm",
"sunspots",
"vector network analyzer",
"vna"
] | The sun may be spotless, but that doesn’t mean it isn’t doing interesting things.
A geomagnetic storm is predicted for this weekend
, potentially giving those at latitudes where the Northern Lights are not common a chance to see a cosmic light show. According to
SpaceWeather.com
, a coronal hole, a gap in the sun’s atm... | 10 | 5 | [
{
"comment_id": "6176336",
"author": "Ren",
"timestamp": "2019-09-02T02:09:03",
"content": "Yes! Windows 95 did “make a grown man cry!”and not with tears of joy either.B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176345",
"author": "Stuart Lo... | 1,760,373,779.642524 | ||
https://hackaday.com/2019/09/01/stack-of-plant-saucers-transformed-into-low-cost-solar-shield/ | Stack Of Plant Saucers, Transformed Into Low Cost Solar Shield | Donald Papp | [
"Parts",
"Science"
] | [
"environmental monitoring",
"sensors",
"shield",
"solar",
"weather",
"weather station"
] | For serious data collection with weather sensors, a solar shield is crucial. The shield protects temperature and humidity sensors from direct sunlight, as well as rain and other inclement weather, without interfering with their operation. [Mare] managed to
create an economical and effective shield for under three euros... | 12 | 5 | [
{
"comment_id": "6176298",
"author": "Alexander Wikström",
"timestamp": "2019-09-01T20:28:00",
"content": "This is rather neat an effective execution.I would have likely done it with a template for marking out the centers for 4 holes.Then drill out the three for the threaded rod using an adequately ... | 1,760,373,779.86521 | ||
https://hackaday.com/2019/09/01/ultra-benchy-is-a-big-plastic-boat-alright/ | Ultra Benchy Is A Big Plastic Boat, Alright | Lewin Day | [
"3d Printer hacks"
] | [
"3dbenchy",
"Benchy",
"luban",
"luban3d"
] | The 3DBenchy, or Benchy for short, is a popular test model for 3D printers. Designed with overhanging curved surfaces, flat planes, holes, and other difficult geometry, it’s a great way to benchmark a printer or verify that everything is set up correctly. It comes in rather handy, but at this point has also become some... | 28 | 12 | [
{
"comment_id": "6176268",
"author": "Katja Hönow",
"timestamp": "2019-09-01T17:46:41",
"content": "It was so cool to be part of that project",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176272",
"author": "dreamer",
"timestamp": "2019-09-01T17:58:3... | 1,760,373,779.811997 | ||
https://hackaday.com/2019/09/01/human-powered-henhouse-keeps-chickens-on-the-job/ | Human-Powered Henhouse Keeps Chickens On The Job | Bryan Cockfield | [
"green hacks"
] | [
"bicycle",
"chickens",
"eggs",
"farm",
"henhouse",
"hens",
"human-powered"
] | While it’s not exactly in the same vein as other projects around here, like restoring vintage video game systems or tricking an ESP32 to output VGA, keeping chickens can also be a rewarding hobby. They make decent pets and can also provide you with eggs. You can also keep them on a surprisingly small amount of land, bu... | 37 | 12 | [
{
"comment_id": "6176229",
"author": "Brad Graham",
"timestamp": "2019-09-01T14:09:23",
"content": "Thanks for posting my project! It’s nice to work the land in the summer, and when the -40 weather hits, I run indoors, trade me welder for a soldering iron, and work on projects like this…https://www.... | 1,760,373,780.047268 | ||
https://hackaday.com/2019/09/01/running-doom-on-a-doomed-gps/ | Running Doom On A Doomed GPS | Ted Yapo | [
"classic hacks",
"Games",
"gps hacks"
] | [
"doom",
"gps",
"Magellan GPS",
"Windows CE"
] | What’s the first thing you think of when you see an old GPS navigation system for sale cheap at a garage sale? Our research indicates that 100% of people would wonder if it could run
Doom
; at least that’s what we conclude from the single data point we have, anyway. [Jason Gin]
asked and answered the question
— with a ... | 14 | 7 | [
{
"comment_id": "6176209",
"author": "Michael Black",
"timestamp": "2019-09-01T11:45:21",
"content": "I’ve bought three GPS receivers at garage sales, $5, $10, and $1.00. The last was the best, needs a new battery but reception is great, even inside. But I wanted them for GPS, so they stay intact... | 1,760,373,779.916548 | ||
https://hackaday.com/2019/09/01/force-sensitive-resistor-takes-the-pain-out-of-bed-leveling/ | Force Sensitive Resistor Takes The Pain Out Of Bed Leveling | Lewin Day | [
"3d Printer hacks",
"Arduino Hacks"
] | [
"arduino pro micro",
"bed leveling",
"force sensitive resistor",
"pressure sensor"
] | How do you know if your 3D printer bed is levelled? Oh, don’t worry – you’ll know. Without a level bed, filament won’t stick properly to the build surface and you’ll run into all sorts of other problems. Knowing how tricky it can be to get the bed just right,
[Antzy] built a tool to help.
The device, which he calls the... | 32 | 14 | [
{
"comment_id": "6176193",
"author": "Limo",
"timestamp": "2019-09-01T08:16:15",
"content": "voron has been using this for about 2 years now …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176196",
"author": "jpa",
"timestamp": "2019-09-01T08:39:44",... | 1,760,373,782.023155 | ||
https://hackaday.com/2019/08/31/double-3-your-instant-physical-presence-anywhere-no-matter-where-you-are/ | Double 3: Your Instant Physical Presence Anywhere, No Matter Where You Are | Maya Posch | [
"Robots Hacks",
"Transportation Hacks"
] | [
"double 3",
"double robotics",
"Nvidia Jetson",
"telepresence",
"telepresence robot",
"ubuntu"
] | Telepresence is one of those futuristic buzzwords that’s popped up a few times over the decades; promising the ability to attend a meeting in New York City and another in Tokyo an hour later, all without having to leave the comfort of your home or office. This is the premise of
Double Robotics’ Double 3
, its most rece... | 18 | 7 | [
{
"comment_id": "6176194",
"author": "Christoo",
"timestamp": "2019-09-01T08:22:41",
"content": "I really hate to be “That” guy, but I can see no point to this over video conferencing. The only exception is a boss who wants to make his employees nervous by cruising this around the office when they a... | 1,760,373,782.120626 | ||
https://hackaday.com/2019/09/03/this-machine-learning-algorithm-is-meta/ | This Machine Learning Algorithm Is Meta | Bryan Cockfield | [
"Software Hacks"
] | [
"comments",
"convolutional neural network",
"machine learning",
"neural network",
"toxic",
"web crawler"
] | Suppose you ran a website releasing many articles per day about various topics, all following a general theme. And suppose that your website allowed for a comments section for discussion on those topics. Unless you are brand new to the Internet, you’ll also imagine that the comments section needs at least a little bit ... | 20 | 11 | [
{
"comment_id": "6176608",
"author": "Biomed",
"timestamp": "2019-09-03T15:51:22",
"content": "Sounds like the most direct path possible to elitist dystopia.Only humans are “human and humane”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176610",
"autho... | 1,760,373,781.953564 | ||
https://hackaday.com/2019/09/03/3d-printing-may-be-the-key-to-practical-scramjets/ | 3D Printing May Be The Key To Practical Scramjets | Tom Nardi | [
"Engine Hacks",
"Engineering",
"Featured",
"Slider",
"Weapons Hacks"
] | [
"Additive Manufacturing",
"cruise missile",
"darpa",
"hypersonic",
"scramjet",
"Waverider",
"X-51"
] | The first scramjet, an airbreathing jet engine capable of pushing an aircraft beyond Mach 5, was successfully flown in the early 1990s. But while pretty much any other technology you could imagine has progressed by leaps and bounds in the nearly 30 years that have passed, the state-of-the-art in hypersonic scramjets ha... | 32 | 5 | [
{
"comment_id": "6176596",
"author": "addidis",
"timestamp": "2019-09-03T14:34:24",
"content": "The answer seems kinda obvious,Im gonna explain it as simply as it can be explained… Put an injector on a selfie stick ahead of the inlet. Let the compression into the first stage mix it. So when normally... | 1,760,373,781.74974 | ||
https://hackaday.com/2019/09/03/null-shard-build-blurs-line-between-game-and-reality-with-laser-cutting-mold-making-3d-printing/ | Null Shard Build Blurs Line Between Game And Reality With Laser Cutting, Mold Making, 3D Printing | Tom Nardi | [
"Games"
] | [
"laser etched",
"laser sintering",
"prop building",
"Puzzle Box",
"video game"
] | In
The Room Three
, players are tasked with collecting mysterious objects known as “Null Shards”. But it seems one player, who goes by the name [Juiceman], took this challenge a bit literally. Starting with promotional art released for the game,
he embarked on an epic journey to create a replica “Null Shard”
that ended... | 7 | 3 | [
{
"comment_id": "6176564",
"author": "yetihehe",
"timestamp": "2019-09-03T11:47:29",
"content": "> All we need to do now is learn how to play instruments.For metal music? That’s optional ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176573",
"au... | 1,760,373,781.795538 | ||
https://hackaday.com/2019/09/03/ham-radio-gets-embedded-rtl-sdr/ | Ham Radio Gets Embedded RTL-SDR | Tom Nardi | [
"Radio Hacks"
] | [
"FT-991",
"ham radio",
"RTL-SDR",
"tap",
"USB hub",
"yaesu"
] | We usually think of the RTL-SDR as a low-cost alternative to a “real” radio, but this incredible project spearheaded by [Rodrigo Freire] shows that the two classes of devices don’t have to be mutually exclusive. After nearly 6 months of work, he’s developed and documented a method to
integrate a RTL-SDR Blog V3 receive... | 13 | 6 | [
{
"comment_id": "6176543",
"author": "slincolne",
"timestamp": "2019-09-03T08:58:41",
"content": "Wicked Cool Hack !!!!!Hey Yeasu – here’s a feature for whatever replaces the FT-991A:-)VK7FAZE",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176590",
"autho... | 1,760,373,782.299153 | ||
https://hackaday.com/2019/09/02/runescape-gba-controller-is-a-nostalgic-mash-up/ | RuneScape GBA Controller Is A Nostalgic Mash-Up | Tom Nardi | [
"classic hacks",
"Nintendo Hacks"
] | [
"controller",
"game boy advance",
"homebrew",
"nintendo",
"nostalgia",
"RuneScape"
] | For gamers, the early 2000s certainly stand out as a memorable era. The dawn of the 21st century ushered in the sixth generation of home video game consoles, with Sony, Nintendo, and Microsoft all releasing their systems within a few years of each other. Nintendo also released their Game Boy Advance at around the same ... | 4 | 2 | [
{
"comment_id": "6176563",
"author": "jimmy",
"timestamp": "2019-09-03T11:39:54",
"content": "Nice",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176569",
"author": "Josiah David Gould",
"timestamp": "2019-09-03T11:54:23",
"content": "Seems like a... | 1,760,373,782.061453 | ||
https://hackaday.com/2019/09/02/aussies-find-the-true-meaning-of-drone-flight/ | Aussies Find The True Meaning Of Drone Flight | Jenny List | [
"drone hacks"
] | [
"drone",
"drone fishing",
"fishing",
"multirotor"
] | Ah, stereotypes. Once they’ve solidified it’s surprisingly hard to shake them. When non-Australians think of a generic Aussie then, the chances are that a
Crocodile Dundee
type of character will spring to mind — a ‘Strine-speaking outdoorsman with a beer in hand. This group of Aussies aren’t helping the case, with
a vi... | 37 | 15 | [
{
"comment_id": "6176502",
"author": "Blecky",
"timestamp": "2019-09-03T02:24:32",
"content": "That fish being caught was faked. It had already been gutted.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176509",
"author": "Saabman",
"timest... | 1,760,373,782.192739 | ||
https://hackaday.com/2019/09/02/the-numberwang-badge-brought-cheer-to-cccamp-2019/ | The Numberwang Badge Brought Cheer To CCCamp 2019 | Jenny List | [
"cons"
] | [
"badge",
"badgelife",
"CCCamp2019",
"numberwang"
] | While wandering through CCCamp last weekend, in between episodes of forcing Marmite on the unwary, I ran into the well-known Hackaday.io user [Prof. Fartsparkle]. In a last-minute sprint leading up to the con he built himself the
Numberwang badge
to join in the colorful after-dark festivities with beautiful board artwo... | 9 | 6 | [
{
"comment_id": "6176493",
"author": "Daren Schwenke",
"timestamp": "2019-09-02T23:58:18",
"content": "I wish I could pull off last minute projects of this quality. Bravo.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176545",
"author": "Prof. Far... | 1,760,373,782.243257 | ||
https://hackaday.com/2019/08/30/your-arduino-samd21-adc-is-lying-to-you/ | Your Arduino SAMD21 ADC Is Lying To You | Ted Yapo | [
"Arduino Hacks",
"News"
] | [
"adc",
"analogRead()",
"arduino",
"SAMD21"
] | One of the great things about the Arduino environment is that it covers a wide variety of hardware with a common interface. Importantly, this isn’t just about language, but also about abstracting away the gory details of the underlying silicon. The problem is, of course, that someone has to decode often cryptic datashe... | 64 | 16 | [
{
"comment_id": "6175861",
"author": "sw",
"timestamp": "2019-08-30T15:16:16",
"content": "“For a 12-bit ADC operating with a reference of 3.3 V, this represents a whopping error of up to 70 least-significant-bits!”WTF? An error of up to 70, yes. How you can have 70 LSbs incorrect in a 12 bit signal... | 1,760,373,782.414593 | ||
https://hackaday.com/2019/08/30/this-week-in-security-vpn-gateways-attacks-in-the-wild-vlc-and-an-ip-address-caper/ | This Week In Security: VPN Gateways, Attacks In The Wild, VLC, And An IP Address Caper | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks",
"Slider",
"Software Hacks"
] | [
"backdoor",
"This Week in Security",
"vlc"
] | We’ll start with more Black Hat/DEFCON news. [Meh Chang] and [Orange Tsai] from Devcore took a look at Fortinet and Pulse Secure devices, and found multiple vulnerabilities. (
PDF Slides
) They are publishing summaries for that research, and
the summary of the Fortinet research
is now available.
It’s… not great. There ... | 7 | 5 | [
{
"comment_id": "6175897",
"author": "Maave",
"timestamp": "2019-08-30T16:58:39",
"content": "Devcore’s slides are amazing, go read that PDF",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176202",
"author": "Gérald",
"timestamp": "2019-09-01T09:45:52"... | 1,760,373,782.680816 | ||
https://hackaday.com/2019/08/30/arduino-on-mbed/ | Arduino On MBed | Al Williams | [
"Arduino Hacks",
"ARM",
"News"
] | [
"arduino",
"arm",
"mbed",
"nordic"
] | Sometimes it seems like Arduino is everywhere. However, with a new glut of IoT processors, it must be quite a task to keep the Arduino core on all of them. Writing on the Arduino blog, [Martino Facchin], Arduino’s chief of firmware development, talks about the problem they faced
supporting two new boards from Nordic
.
... | 22 | 5 | [
{
"comment_id": "6175798",
"author": "Luis",
"timestamp": "2019-08-30T11:25:26",
"content": "They should have spent the time doing properly. Nobody will use mbed to program that. They should bet harder on the future",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_i... | 1,760,373,782.638654 | ||
https://hackaday.com/2019/08/30/building-a-robot-rover-for-those-tough-indoor-missions/ | Building A Robot Rover For Those Tough Indoor Missions | Maya Posch | [
"Robots Hacks",
"Transportation Hacks"
] | [
"mantis rover",
"mecanum wheels",
"robotics",
"rover"
] | Making an outdoor rover is easy stuff, with lots of folk having them doing their roving activities on beaches and alien worlds. Clearly the new frontier is indoor environments, a frontier which is helpfully being conquered by
[Andreas Hoelldorfer]’s Mantis Rover
.
OK, we’re kidding. This project started out life as a b... | 4 | 4 | [
{
"comment_id": "6175801",
"author": "deralchemist",
"timestamp": "2019-08-30T11:58:59",
"content": "I want one!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6175862",
"author": "Hirudinea",
"timestamp": "2019-08-30T15:16:29",
"content": "He look... | 1,760,373,783.046957 | ||
https://hackaday.com/2019/08/29/how-to-play-doom-and-more-on-an-nes/ | How To Play Doom – And More – On An NES | Bryan Cockfield | [
"Games"
] | [
"cartridge",
"doom",
"mod",
"nes",
"nintendo",
"raspberry pi"
] | Doom was a breakthrough game for its time, and became so popular that now it’s essentially the “Banana For Scale” of hardware hacking. Doom has been ported to countless devices, most of which have enough processing ability to run the game natively. Recently, this lineup of Doom-compatible devices expanded to include th... | 16 | 8 | [
{
"comment_id": "6175751",
"author": "AUser",
"timestamp": "2019-08-30T05:21:22",
"content": "A NES. Damnit.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175800",
"author": "xamiax",
"timestamp": "2019-08-30T11:51:08",
"content": "... | 1,760,373,782.930681 | ||
https://hackaday.com/2019/08/29/this-heads-up-display-is-all-wet/ | This Heads Up Display Is All Wet | Al Williams | [
"Wearable Hacks"
] | [
"google glass",
"IMU",
"swim",
"swimming",
"wearable"
] | Athletes have a long history of using whatever they can find to enhance their performance or improve their training. While fitness tracker watches are nothing new, swimmers have used them to track their split times, distance, and other parameters. The problem with fitness trackers though is that you have to look at a w... | 18 | 6 | [
{
"comment_id": "6175748",
"author": "Anonymoos",
"timestamp": "2019-08-30T04:15:59",
"content": "So this is a less fashionable DBZ Scouter.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175783",
"author": "Gray",
"timestamp": "2019-08-30T0... | 1,760,373,782.997982 | ||
https://hackaday.com/2019/08/29/see-if-someone-has-been-in-your-drawers-with-this-simple-alarm/ | See If Someone Has Been In Your Drawers With This Simple Alarm | Dan Maloney | [
"Microcontrollers"
] | [
"alarm",
"APDS-9330",
"intrusion",
"Joystick",
"light sensor",
"PIC16LF18345"
] | There’s a spy movie – probably from the [James Bond] franchise – in which our hero is staying in a fancy hotel. It’s crawling with enemies, naturally, and eager to see if one has been snooping in his room while he’s out for martinis, he sticks a hair across the gap in the door. When he comes back and finds the hair mis... | 29 | 11 | [
{
"comment_id": "6175723",
"author": "N",
"timestamp": "2019-08-30T01:00:59",
"content": "It seems like a clever thief could reprogram the device to respond to any PIN and never turn on the Alarm LED. The user would never know that the device has been hijacked.",
"parent_id": null,
"depth":... | 1,760,373,783.11554 | ||
https://hackaday.com/2019/08/30/steampunk-radio-looks-the-business/ | Steampunk Radio Looks The Business | Lewin Day | [
"Radio Hacks"
] | [
"gears",
"radio",
"steampunk"
] | Radios are, by and large, not powered by steam. One could make the argument that much of our municipal electricity supply does come via steam turbines, but that might be drawing a long bow. Regardless, steampunk remains a popular and attractive aesthetic,
and it’s the one that [Christine] selected for her radio build
.... | 11 | 8 | [
{
"comment_id": "6176007",
"author": "Michael Black",
"timestamp": "2019-08-31T05:30:06",
"content": "Decades ago Popular Electronics had a construction article for a simple transistor transmitter, but powered by a toy steam engine. Not much power there, but certainly steam.There was also the entr... | 1,760,373,782.876066 | ||
https://hackaday.com/2019/08/30/voice-chess-uses-phone-arduino-and-an-electromagnet/ | Voice Chess Uses Phone, Arduino, And An Electromagnet | Al Williams | [
"Arduino Hacks"
] | [
"android",
"arduino",
"chess",
"electromagnet",
"voice command",
"voice control"
] | [Diyguypt] may be an altruist to provide the means for people who can’t manipulate chess pieces to play the game. Or he may just have his hands too busy with food and drink to play. Either way, his
voice command chessboard
appears to work, although it has a lot of moving parts both figuratively and literally. You can c... | 6 | 6 | [
{
"comment_id": "6176082",
"author": "Chris Knight",
"timestamp": "2019-08-31T14:45:06",
"content": "A warning that the video is nausea-inducing would have been appreciated…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6176083",
"author": "Luiz",
"ti... | 1,760,373,783.262512 | ||
https://hackaday.com/2019/08/30/remarkable-tablet-scores-a-microsd-slot/ | ReMarkable Tablet Scores A MicroSD Slot | Lewin Day | [
"Tablet Hacks"
] | [
"reMarkable",
"sd card",
"SD slot",
"tablet"
] | There’s been a marked trend towards modern tablets and phones having fewer expansion options. It’s becoming rarer to find a microSD slot available, which can be particularly frustrating. For [davisr], this simply wouldn’t do,
and they set about hacking their ReMarkable tablet.
A rotary tool was used to make a tidy slot... | 4 | 3 | [
{
"comment_id": "6175997",
"author": "Rog Fanther",
"timestamp": "2019-08-31T01:32:36",
"content": "It seems that, if he wanted to keep the card in the inside of the tablet, he could have just solderered the slot directly in the mainboard.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,783.364993 | ||
https://hackaday.com/2019/08/30/the-gorgeous-hardware-we-cant-take-our-eyes-away-from/ | The Gorgeous Hardware We Can’t Take Our Eyes Away From | Tom Nardi | [
"contests",
"hardware"
] | [
"Beautiful Hardware Contest",
"composition",
"futurism",
"lighting",
"microscope",
"photography",
"RGB LED"
] | High resolution digital cameras are built into half of the devices we own (whether we want them or not), so why is it still so hard to find good pictures of all the incredible projects our readers are working on? In the recently concluded
Beautiful Hardware Contest
, we challenged you to take your project photography t... | 1 | 1 | [
{
"comment_id": "6175969",
"author": "Alexander Wikström",
"timestamp": "2019-08-30T21:40:48",
"content": "That gyroscope takes the cake when it comes to down right beautiful chip packaging.Next question is, is it really needed for the application? Or were it simply to fend off copycats from even tr... | 1,760,373,783.315274 | ||
https://hackaday.com/2019/08/30/fibergrid-an-inexpensive-optical-sensor-framework/ | FiberGrid: An Inexpensive Optical Sensor Framework | Ben James | [
"digital cameras hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"3d printed",
"camera",
"fibergrid",
"Optical fiber",
"robotics",
"sensors"
] | When building robots, or indeed other complex mechanical systems, it’s often the case that more and more limit switches, light gates and sensors are amassed as the project evolves. Each addition brings more IO pin usage, cost, potentially new interfacing requirements and accompanying microcontrollers or ADCs. If you do... | 21 | 12 | [
{
"comment_id": "6175928",
"author": "RunnerPack",
"timestamp": "2019-08-30T19:24:08",
"content": "I had this idea years ago, but I wanted to make a touch screen by lining the edges of a display with fibers (half emitting light, the other half with their other ends arranged in a grid with a camera)"... | 1,760,373,783.497371 | ||
https://hackaday.com/2019/08/30/cccamp-5000-hackers-out-standing-in-their-field/ | CCCamp: 5,000 Hackers Out Standing In Their Field | Elliot Williams | [
"cons",
"Featured",
"Roundup"
] | [
"cccamp",
"CCCamp2019",
"field phone",
"FOC",
"railroad",
"rave"
] | What do hackers do on vacation? What do hackers do whenever they have free time? What do you love to do? That’s right. But how much more fun would it be if you could get together with 5,000 other hackers, share your crazy projects and ideas, eat, drink, dance, swim, and camp out all together for five days, naturally wi... | 12 | 5 | [
{
"comment_id": "6175910",
"author": "deshipu",
"timestamp": "2019-08-30T18:01:11",
"content": "> hackers from Europe and the UKI see what you did here.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6176148",
"author": "Patrick",
"timestamp"... | 1,760,373,783.432223 | ||
https://hackaday.com/2019/08/30/hackaday-podcast-033-decompressing-from-camp-nuclear-stirling-engines-carphone-or-phonecar-and-ardumower/ | Hackaday Podcast 033: Decompressing From Camp, Nuclear Stirling Engines, Carphone Or Phonecar, And ArduMower | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"cccamp",
"CCCamp2019",
"Hackaday Podcast"
] | Hackaday Editors Mike Szczys and Elliot Williams are back from Chaos Communication Camp, and obviously had way too much fun. We cover all there was to see and do, and dig into the best hacks from the past week. NASA has a cute little nuclear reactor they want to send to the moon, you’ve never seen a car phone quite lik... | 4 | 3 | [
{
"comment_id": "6176072",
"author": "NoseyNick",
"timestamp": "2019-08-31T13:48:25",
"content": "“Absolutely surprised that nobody’s already doing it to me… Trolling people’s logfiles” happens ALL THE TIME – unfortunately the spammers realised they could spoof “referer” headers, implying that their... | 1,760,373,783.615944 | ||
https://hackaday.com/2019/08/29/measuring-particulate-pollution-with-the-esp32/ | Measuring Particulate Pollution With The ESP32 | Lewin Day | [
"Science"
] | [
"air pollution",
"air quality",
"pm10",
"pm2.5",
"pollution"
] | Air pollution isn’t just about the unsightly haze in major cities. It can also pose a major health risk, particularly to those with vulnerable respiratory systems. A major part of hazardous pollution is particulate matter, tiny solid particles suspended in the air. Particulate pollution levels are of great interest to ... | 7 | 5 | [
{
"comment_id": "6175757",
"author": "Kristian Stobbe",
"timestamp": "2019-08-30T05:58:48",
"content": "Nice project! I did a similar build earlier this yearhttp://kstobbe.dk/2019/02/16/esp32-pms5003-bme280-mics6814-sensor-build/and with my own data collection/presentation backendhttp://kstobbe.dk/2... | 1,760,373,785.906378 | ||
https://hackaday.com/2019/08/29/a-handy-way-to-cheaply-print-a-robotic-arm/ | A Handy Way To Cheaply Print A Robotic Arm | Maya Posch | [
"Medical Hacks",
"Robots Hacks",
"The Hackaday Prize"
] | [
"robotic arm",
"robotics"
] | There’s something fascinating about humanoid robotic hands, if only because of how they are such close approximations of our own hands. One could almost picture them with tendons and skin covering them. Sadly, making your own is quite prohibitive because in addition to being complex bits of machinery, making one of the... | 5 | 3 | [
{
"comment_id": "6175681",
"author": "rbscharette",
"timestamp": "2019-08-29T19:09:44",
"content": "I’d probably change the title to “robotic hand” (maybe include forearm?). Would be more representative of what is discussed here. When I think robotic arm, I imagine more something like this:https://t... | 1,760,373,785.842577 | ||
https://hackaday.com/2019/08/29/hands-on-cccamp2019-badge-is-a-sensor-playground-not-to-be-mistaken-for-a-watch/ | Hands-On: CCCamp2019 Badge Is A Sensor Playground Not To Be Mistaken For A Watch | Mike Szczys | [
"cons",
"Microcontrollers",
"Wearable Hacks"
] | [
"badge",
"badgelife",
"BHI160",
"BMA400",
"BME680",
"card10",
"CCCamp2019",
"ecg",
"MAX30001",
"MAX32666",
"MAX86150",
"micropython",
"wristwatch"
] | Last weekend 5,000 people congregated in a field north of Berlin to camp in a meticulously-organized, hot and dusty wonderland. The optional, yet official,
badge for the 2019 Chaos Communication Camp
was a bit tardy to proliferate through the masses as the badge team continued assembly while the camp raged around them.... | 19 | 8 | [
{
"comment_id": "6175667",
"author": "Ren",
"timestamp": "2019-08-29T17:50:24",
"content": "That is a cool wat^H^H^H badge!Nice write-up Mike!Could you label the chips / points of interest on the photos?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175670... | 1,760,373,786.043437 | ||
https://hackaday.com/2019/08/29/impractical-clock-uses-tuning-fork/ | Impractical Clock Uses Tuning Fork | Al Williams | [
"ATtiny Hacks",
"clock hacks"
] | [
"clock",
"tuning fork"
] | Clock projects are so common that they are almost a cliche. After all, microcontrollers have some clock source and are good at counting, so it stands to reason that a clock is an obvious project. [WilkoL’s] clock though has a most unusual clock source:
a 440 Hz tuning fork
.
A cheap plastic dome really shows off the fo... | 31 | 14 | [
{
"comment_id": "6175617",
"author": "Q",
"timestamp": "2019-08-29T15:35:38",
"content": "April fool: The 32.768 kHz from the clock Xtal is driving my pet bat mad…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6175618",
"author": "Erik Johnson",
"time... | 1,760,373,785.976096 | ||
https://hackaday.com/2019/08/29/pegleg-raspberry-pi-implanted-below-the-skin-not-coming-to-a-store-near-you/ | Pegleg: Raspberry Pi Implanted Below The Skin (Not Coming To A Store Near You) | Brian McEvoy | [
"Medical Hacks",
"Raspberry Pi",
"Wireless Hacks"
] | [
"biohackers",
"biohacking",
"fiction becomes reality",
"Four Thieves Vinegar",
"grind",
"grinder",
"implant",
"pegleg",
"raspberry pi",
"Raspi",
"sci-fi",
"science fiction",
"William Gibson"
] | Earlier this month, a group of biohackers installed two Rasberry Pis in their legs. While that sounds like the bleeding edge, those computers were already v2 of a project called
PegLeg
. I was fortunate enough to see both versions in the flesh, so to speak. The first version was scarily large — a mainboard donated by a... | 87 | 24 | [
{
"comment_id": "6175576",
"author": "Jerry",
"timestamp": "2019-08-29T14:08:14",
"content": "Enter Robocop, stage left..",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6222735",
"author": "Jerry",
"timestamp": "2020-02-25T13:44:33",
... | 1,760,373,786.218915 | ||
https://hackaday.com/2019/08/29/giant-led-display-is-1200-balls-to-the-wall/ | Giant LED Display Is 1200 Balls To The Wall | Dan Maloney | [
"LED Hacks"
] | [
"diffuser",
"ESP32",
"led",
"metalwork",
"neopixel",
"streaming"
] | When you’re going to build something big, it’s often a good idea to start small and work out the bugs first. That’s what [bitluni] did with
his massive 1200-pixel LED video wall
, which he unveiled at Maker Faire Hanover recently.
We covered
his prototype a while back
, a mere 300 ping pong ball ensconced-LEDs on a lar... | 10 | 8 | [
{
"comment_id": "6175557",
"author": "Max S.",
"timestamp": "2019-08-29T12:26:06",
"content": "Holy Balls!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6175586",
"author": "Ren",
"timestamp": "2019-08-29T14:26:38",
"content": "I think better reso... | 1,760,373,786.373903 | ||
https://hackaday.com/2019/08/29/experiments-in-3d-graphics-via-excel/ | Experiments In 3D Graphics Via Excel | Lewin Day | [
"Misc Hacks"
] | [
"3d engine",
"3d rendering",
"excel",
"ray tracing"
] | 3D graphics were once the domain of university research groups and large, specialized computing systems. Eventually, they were tamed and became mainstream. Your phone, tablet, and home computer are all perfectly capable of generating moving 3D graphics.
Incidentally, so is Microsoft Excel.
This is the work of of [s0lly... | 10 | 6 | [
{
"comment_id": "6175529",
"author": "RoGeorge",
"timestamp": "2019-08-29T09:30:57",
"content": "https://www.youtube.com/watch?v=r9PLmtQZwmY:o)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175563",
"author": "Thinkerer",
"timestamp": "2019... | 1,760,373,786.09284 | ||
https://hackaday.com/2019/08/27/a-car-phone-no-not-that-kind/ | A Car Phone — No, Not That Kind | Erin Pinheiro | [
"Robots Hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"autonomous car",
"computer vision",
"reinforcement learning",
"remote control car",
"self-driving car"
] | Autonomous vehicle development is a field of technology that remains relatively elusive to the average hacker, what with the needing a whole car and all. Instead of having to deal with such a large scale challenge, [Piotr Sokólski] has instead turned to
implementing the same principles on the scale of a small radio-con... | 5 | 4 | [
{
"comment_id": "6175099",
"author": "Greg A",
"timestamp": "2019-08-27T19:02:56",
"content": "I like this approach of using a phone as a low-cost high-capacity brain. I did a similar project…used a phone for its camera and wifi, so i could drive a toy car with FPV. I connected a PIC12 between the... | 1,760,373,785.524729 | ||
https://hackaday.com/2019/08/27/following-pigs-building-an-injectable-livestock-tracking-system/ | Following Pigs: Building An Injectable Livestock Tracking System | Sean Boyce | [
"Engineering",
"Hackaday Columns",
"how-to",
"Medical Hacks",
"Original Art",
"Slider",
"Wireless Hacks"
] | [
"125 kHz",
"ESP8266",
"hardware implant",
"IoT",
"livestock tracking",
"pig",
"pig tracking",
"rfid"
] | I’m often asked to design customer and employee tracking systems. There are quite a few ways to do it, and it’s an interesting intersection of engineering and ethics – what information is reasonable to collect in different contexts, anonymizing and securely storing it, and at a fundamental level whether the entire syst... | 43 | 20 | [
{
"comment_id": "6175068",
"author": "Danjovic",
"timestamp": "2019-08-27T17:19:49",
"content": "can you make the pigs went through a bigger loop antenna?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175170",
"author": "Sean Boyce",
"times... | 1,760,373,785.612117 | ||
https://hackaday.com/2019/08/27/vintage-car-radio-now-plays-games-and-chiptunes/ | Vintage Car Radio Now Plays Games And Chiptunes | Kristina Panos | [
"Raspberry Pi"
] | [
"car radio",
"game console",
"picade",
"raspberry pi",
"retropie",
"vintage radio"
] | [MisterM] seems to specialize in squeezing new electronics into old but good-looking technology.
His latest creation
focuses on a space-age specimen: an interesting car radio from 1963 that could be pulled out from the dashboard and taken along wherever. The beat goes on, thanks to a shiny built-in speaker on the botto... | 16 | 8 | [
{
"comment_id": "6175048",
"author": "gejppo",
"timestamp": "2019-08-27T15:51:02",
"content": "So pretty much a nice historic piece of technology turned into e-waste. Great job.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175075",
"author": "MIKE... | 1,760,373,785.679373 | ||
https://hackaday.com/2019/08/27/the-amazon-dash-button-a-retrospective/ | The Amazon Dash Button: A Retrospective | Kerry Scharfglass | [
"Hackaday Columns",
"hardware",
"Microcontrollers",
"Slider",
"Teardown"
] | [
"acoustic modem",
"amazon",
"amazon dash button",
"amazon dash hack",
"amazon dash wand",
"Amazon Echo",
"battery",
"bluetooth",
"Dash button",
"e-waste",
"reverse engineering",
"wifi"
] | The Internet of Things will revolutionize everything! Manufacturing? Dog walking? Coffee bean refilling? Car driving? Food eating? Put a sensor in it! The marketing makes it pretty clear that there’s no part of our lives which isn’t enhanced with The Internet of Things. Why? Because with a simple sensor and a symphony ... | 38 | 15 | [
{
"comment_id": "6175019",
"author": "Mark Smith",
"timestamp": "2019-08-27T14:19:47",
"content": "i really hope someone figures out to configure wifi on dash button once amazon sunsets it’s servers and removes pairing capabilities from it’s app. they make great IoT buttons and cheap sensors. Lasts ... | 1,760,373,787.232645 | ||
https://hackaday.com/2019/08/27/3d-printed-rover-enjoys-long-walks-on-the-beach/ | 3D Printed Rover Enjoys Long Walks On The Beach | Tom Nardi | [
"Robots Hacks"
] | [
"Curiosity",
"rocker-bogie",
"rover",
"Sawppy"
] | More than a few hackers have put in the considerable time and effort required to build a rover inspired by NASA’s robotic Martian explorers, but unfortunately even the most well funded home tinkerer can’t afford the ticket to send their creation offworld. So most of these builds don’t journey through anything more exci... | 13 | 9 | [
{
"comment_id": "6174977",
"author": "Jason Bowling",
"timestamp": "2019-08-27T11:17:57",
"content": "Nicely done!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6174987",
"author": "M",
"timestamp": "2019-08-27T12:02:49",
"content": "A work of art... | 1,760,373,787.004359 | ||
https://hackaday.com/2019/08/27/gigadevice-releasing-risc-v-mcus-and-development-boards/ | GigaDevice Releasing RISC-V MCUs And Development Boards | Maya Posch | [
"hardware",
"Microcontrollers",
"News"
] | [
"gd32v",
"gigadevice",
"RISC-V",
"stm32"
] | Probably not too many people have heard of Chinese manufacturer GigaDevice who so far has mostly been known as a NOR Flash memory manufacturer. Their GD32 range of MCUs is however STM32-compatible, making them interesting (cheaper) alternatives to sourcing directly from ST. Now GigaDevice has announced during a present... | 30 | 9 | [
{
"comment_id": "6174948",
"author": "zoobab",
"timestamp": "2019-08-27T08:43:46",
"content": "They have published an SDK with some gcc.exe in there, but without the sources.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6174961",
"author": "jaap",
... | 1,760,373,787.301141 | ||
https://hackaday.com/2019/08/26/another-world-on-the-apple-ii/ | Another World On The Apple II | Maya Posch | [
"classic hacks",
"computer hacks",
"Games",
"Retrocomputing"
] | [
"apple II",
"Apple IIGS",
"retrogaming"
] | What’s more fun than porting an old game released for an old system such as the Apple IIgs to its 10-year-older predecessor, the Apple II from 1977?
Cue [Deater]’s port
of the classic video game ‘
Another World
‘ to the original Apple II. As was fairly obvious from the onset, the main challenges were with the amount of... | 11 | 11 | [
{
"comment_id": "6174917",
"author": "Jan",
"timestamp": "2019-08-27T06:11:20",
"content": "this is very nice, looks very playable too. Indeed a great achievement!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6174958",
"author": "Anonymous Coward",
"... | 1,760,373,787.357425 | ||
https://hackaday.com/2019/08/28/kilopower-nasas-offworld-nuclear-reactor/ | Kilopower: NASA’s Offworld Nuclear Reactor | Tom Nardi | [
"Engineering",
"Featured",
"Interest",
"Slider",
"Space"
] | [
"fission",
"heat pipe",
"mars",
"moon",
"nasa",
"Nuclear Reactor",
"stirling engine"
] | Here on Earth, the ability to generate electricity is something we take for granted. We can count on the sun to illuminate solar panels, and the movement of air and water to spin turbines. Fossil fuels, for all their downsides, have provided cheap and reliable power for centuries. No matter where you may find yourself ... | 107 | 20 | [
{
"comment_id": "6175284",
"author": "Mike Massen",
"timestamp": "2019-08-28T14:14:28",
"content": "Fascinating post, thanksFWIW. We have heaps of Thorium on Australian beaches and a UK bomb test site contaminated region almost central to most high population centres, worth considering putting a siz... | 1,760,373,787.881349 | ||
https://hackaday.com/2019/08/28/secret-messages-could-be-hiding-in-your-server-logs/ | Secret Messages Could Be Hiding In Your Server Logs | Tom Nardi | [
"Software Hacks"
] | [
"bash",
"covert channel",
"curl",
"dead drop",
"encode",
"web server"
] | [Ryan Flowers] writes in with a clever little hack that can allow you to hide data where nobody is going to go looking for it. By exploiting the fact that a web server will generally log all HTTP requests whether or not it’s valid, he shows how
you can covertly send a message by asking the server for a carefully crafte... | 13 | 9 | [
{
"comment_id": "6175244",
"author": "Dave",
"timestamp": "2019-08-28T11:11:31",
"content": "Well, yes, you could do that… although this assumes I have a web server I admin, it’s logging requests, and I’m fond of grepping for dead drop messages. Frankly, easier and more practical solutions exist.",
... | 1,760,373,787.44921 | ||
https://hackaday.com/2019/08/28/finely-machined-valve-controls-miniature-rc-hydraulics/ | Finely Machined Valve Controls Miniature RC Hydraulics | Dan Maloney | [
"Misc Hacks"
] | [
"cylinder",
"hydraulics",
"machining",
"proportional",
"rotary",
"spool",
"valve"
] | Hydraulic components are the industrial power transmission version of LEGO. Pumps, cylinders, valves – pretty much everything is standardized, and fitting out a working system is a matter of picking the right parts and just plumbing everything together. That’s fine if you want to build an excavator or a dump truck, but... | 4 | 4 | [
{
"comment_id": "6175224",
"author": "Mike Massen",
"timestamp": "2019-08-28T08:20:29",
"content": "Nice one, used to work in electronic controls (Z80/NSC800 based) for press brakes to 500Tonnes 1984 ish Pretron Electronics to support Nova Machinery production systems, calibrating 2″ steel flexure w... | 1,760,373,787.400652 | ||
https://hackaday.com/2019/08/27/fixing-a-cheap-ups-hat-for-your-raspberry-pi-with-a-tiny-daemon/ | Fixing A Cheap UPS HAT For Your Raspberry Pi With A Tiny Daemon | Maya Posch | [
"ATtiny Hacks",
"Microcontrollers",
"Raspberry Pi"
] | [
"attiny",
"geekworm",
"raspberry pi",
"ups"
] | An uninterruptible power supply (UPS) isn’t something solely to have hooked up to your desktop PC. Your Raspberry Pi SBC might also benefit from it. Yet the available options aren’t too great, or are too expensive. This leads folk including [Joachim Baumann] to
modify cheerfully cheap Chinese UPS HAT
boards such as the... | 19 | 8 | [
{
"comment_id": "6175197",
"author": "Daniel",
"timestamp": "2019-08-28T05:24:56",
"content": "I use an Adafruit Powerboost 1000 Charger with a Li ion battery for my Rpi working as VPN server.Does the job pretty well!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,373,787.567056 | ||
https://hackaday.com/2019/08/27/new-cray-will-reach-1-5-exaflops/ | New Cray Will Reach 1.5 ExaFLOPS | Al Williams | [
"News"
] | [
"cray",
"exaFLOP",
"supercomputing"
] | It wasn’t that long ago when hard drives that boasted a terabyte of capacity were novel. But impressive though the tera- prefix is, beyond that is peta and even further is exa — as in petabyte and exabyte. A common i7 CPU currently clocks in at about 60 gigaflops (floating point operations per second). Respectable, but... | 61 | 15 | [
{
"comment_id": "6175163",
"author": "Eric Chapin",
"timestamp": "2019-08-28T02:25:29",
"content": "Will it run Crysis?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175223",
"author": "www",
"timestamp": "2019-08-28T08:18:16",
"con... | 1,760,373,787.66798 | ||
https://hackaday.com/2019/08/27/another-way-to-make-pcbs-at-home/ | Another Way To Make PCBs At Home | Bryan Cockfield | [
"Laser Hacks"
] | [
"engraver",
"home",
"homebrew",
"laser",
"pcb",
"printer"
] | One of the more popular ways of rolling out your own custom PCB is to simply create the model in your CAD program of choice and send it off to a board manufacturer who will take care of the dirty work for you. This way there is no need to deal with things like chemicals, copper dust, or maintaining expensive tools. A m... | 32 | 14 | [
{
"comment_id": "6175151",
"author": "Electra",
"timestamp": "2019-08-27T23:52:45",
"content": "This works great with Hackerspace class CO2 machines.Clean board very well(scouring pad), two light coats of spraypaint, laser off, wash and etch. We’ve been comfortably doing 0805 single sided boards. ... | 1,760,373,787.736025 | ||
https://hackaday.com/2019/08/27/trimmed-dreamcast-board-makes-for-perfect-portable/ | Trimmed Dreamcast Board Makes For Perfect Portable | Tom Nardi | [
"classic hacks",
"Games"
] | [
"3D printed enclosure",
"dreamcast",
"PIC32MZ",
"portable",
"trimmed",
"vmu"
] | In the last year or so we’ve been seeing an array of portable game system builds based around “trimmed” Wii motherboards which have literally been cut down to a fraction of their original size. It turns out that most of the board is dedicated to non-essential functions, with the core Wii system contained within one spe... | 4 | 2 | [
{
"comment_id": "6175157",
"author": "Gregg Eshelman",
"timestamp": "2019-08-28T00:46:23",
"content": "What is he using to load games and replace the GD-ROM?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175161",
"author": "Gman",
"timestam... | 1,760,373,787.927023 | ||
https://hackaday.com/2019/08/28/how-the-power-gets-to-the-outlet/ | How The Power Gets To The Outlet | Al Williams | [
"home hacks",
"Misc Hacks"
] | [
"breaker",
"electricity",
"fuse",
"grid",
"recloser",
"substation"
] | [Practical Engineering] is ready to explain how power substations get electricity to you in his
latest video
, which you can see below. One of the things we always notice when talking to people either in our community or outside it is that most people have no idea how most of the modern world works.
Ask your non-techn... | 10 | 4 | [
{
"comment_id": "6175491",
"author": "Truth",
"timestamp": "2019-08-29T05:15:49",
"content": "> One of the things we always notice when talking to people either in our community or outside it is that most people have no idea how most of the modern world worksThanks, I’m now thinking about Scandinavi... | 1,760,373,788.11425 | ||
https://hackaday.com/2019/08/28/fm-signal-detection-the-pulse-counting-way/ | FM Signal Detection The Pulse-Counting Way | Dan Maloney | [
"Radio Hacks"
] | [
"demodulation",
"detector",
"discriminator",
"fm",
"Frequency modulation",
"integration",
"pulse",
"pwm",
"zero crossing"
] | Compared to the simple diode needed to demodulate AM radio signals, the detector circuits used for FM are slightly more complicated. Wrapping your head around phase detectors, ratio detectors, discriminators, and quadrature detectors can be quite an exercise. There’s another demodulation method that’s not so common, bu... | 7 | 4 | [
{
"comment_id": "6175505",
"author": "Mike Massen",
"timestamp": "2019-08-29T06:56:34",
"content": "Nice coincidence, was just looking at crafting a dirt cheapest tiniest circuit to detect presence of an FM (fsk 4.5KHz) modulated signal at arbitrary narrow bands +-10KHz resolution around 433MHz or s... | 1,760,373,787.968612 | ||
https://hackaday.com/2019/08/28/monitoring-an-electric-fence-with-lorawan/ | Monitoring An Electric Fence With LoRaWAN | Maya Posch | [
"Microcontrollers"
] | [
"electric fence",
"farming",
"LoRaWAN"
] | Making sure that an electric fence which is keeping one’s cattle and sheep from wandering off is still working properly seems like a fairly daunting task, especially when this fence is quite a distance from one’s home so checking up on it is time-consuming. After a friend of [kiu] got called a few times by the police b... | 57 | 21 | [
{
"comment_id": "6175442",
"author": "Peter A Neilson",
"timestamp": "2019-08-28T23:23:36",
"content": "I need one of these. Or more likely several of them. Debugging an electric fence to find the short or the open that is making it fail usually involves a lot of walking. Sometimes miles and miles o... | 1,760,373,788.207468 | ||
https://hackaday.com/2019/08/28/skid-steer-mows-airport-grass-autonomously/ | Skid Steer Mows Airport Grass Autonomously | Bryan Cockfield | [
"Robots Hacks"
] | [
"ardupilot",
"autonomous",
"grass",
"lawn",
"mower",
"robot",
"skid steer"
] | Sure, mowing the lawn is a hassle. No one really wants to spend their time and money growing a crop that doesn’t produce food, but we do it anyway. If you’re taking care of a quarter acre in the suburbs it’s not
that
much of a time sink, but if you’re taking care of as much grass as [Roby], you’d probably build somethi... | 32 | 10 | [
{
"comment_id": "6175417",
"author": "Ren",
"timestamp": "2019-08-28T20:43:13",
"content": "Impressive build!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6175532",
"author": "x",
"timestamp": "2019-08-29T09:47:57",
"content": "Elef... | 1,760,373,788.35108 | ||
https://hackaday.com/2019/08/28/cat-litter-tray-joins-the-internet-of-things/ | Cat Litter Tray Joins The Internet Of Things | Lewin Day | [
"home hacks"
] | [
"2019 Hackaday Prize",
"cat litter",
"litter box"
] | Keeping a cat as a pet can be rewarding, but it’s always important to consider how to handle the mess – and we’re not just talking about the tea cups pushed off tables here. To handle just this task,
[Igor] decided to hook his cat litter box up to the internet of things.
Monitoring the litter box brings several useful ... | 25 | 8 | [
{
"comment_id": "6175394",
"author": "N",
"timestamp": "2019-08-28T19:34:58",
"content": "I don’t understand why this is necessary. It does not make anything easier. Clean the litter box every day. No sensor is necessary. Is it really that hard to pick up your cat and step on the scale? Intera... | 1,760,373,788.269148 | ||
https://hackaday.com/2019/08/28/global-radiation-montoring-and-tracking-nuclear-disasters-at-home/ | Global Radiation Montoring And Tracking Nuclear Disasters At Home | Lewin Day | [
"Current Events",
"Interest",
"Original Art"
] | [
"Chernobyl",
"environmental monitoring",
"Fukushima",
"geiger counter",
"radiation",
"radiation monitoring",
"Skyfall"
] | Many of us don’t think too much about radiation levels in our area, until a nuclear disaster hits and questions are raised. Radiation monitoring is an important undertaking, both from a public health perspective and as a way to monitor things like weapon development. So why is it done, how is it done, and what role can... | 10 | 9 | [
{
"comment_id": "6175364",
"author": "Ren",
"timestamp": "2019-08-28T17:47:35",
"content": "I’m wondering about the data…If it were all stored on a cloud site (e.g. Google), I think that data would be susceptible to a government “shutdown”.If stored locally, how do we access all of it, and along wit... | 1,760,373,788.413753 |
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