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https://hackaday.com/2018/08/31/science-shows-green-lasers-might-be-more-than-you-bargained-for/ | Science Shows Green Lasers Might Be More Than You Bargained For | Dan Maloney | [
"Laser Hacks"
] | [
"diode",
"DPSS",
"eyes",
"goggles",
"KTP",
"laser",
"laser pointer",
"Nd:YAG",
"retina",
"safety"
] | This may come as a shock, but some of those hot screaming deals on China-sourced gadgets and goodies are not all they appear. After you plunk down your pittance and wait a few weeks for the package to arrive, you just might find that you didn’t get exactly what you thought you ordered. Or worse, you may get a product w... | 54 | 16 | [
{
"comment_id": "4957512",
"author": "Mike Massen",
"timestamp": "2018-08-31T08:02:21",
"content": "Lots of hidden dangers, thanks for alerts, too many ppl not taking simple safety assuming low power label means low power, its a very messy market place…",
"parent_id": null,
"depth": 1,
"... | 1,760,374,239.357592 | ||
https://hackaday.com/2018/08/30/laser-arm-cannon-scares-more-than-metroids/ | Laser Arm Cannon Scares More Than Metroids | Tom Nardi | [
"3d Printer hacks",
"Arduino Hacks",
"Laser Hacks",
"LED Hacks"
] | [
"450nm",
"cosplay",
"laser",
"metroid",
"prop"
] | There’s an interesting side effect of creating a popular piece of science fiction: if you wait long enough, say 30 or 40 years, there’s a good chance that somebody will manage to knock that pesky “fiction” bit off the end. That’s how we got flip phones that looked like the communicators from
Star Trek
, and rockets tha... | 5 | 3 | [
{
"comment_id": "4958006",
"author": "Elliot Williams",
"timestamp": "2018-08-31T10:02:30",
"content": "I just left my laser-safety rant in the comments onhttps://hackaday.com/2018/08/31/science-shows-green-lasers-might-be-more-than-you-bargained-for/where it was on-topic, but it’s still worth menti... | 1,760,374,238.689337 | ||
https://hackaday.com/2018/08/30/the-boldport-cordwood-and-cuttlefish-together-as-a-guitar-tuner/ | The Boldport Cordwood And Cuttlefish, Together As A Guitar Tuner | Jenny List | [
"Musical Hacks"
] | [
"boldport",
"cordwood",
"cuttlefish",
"guitar",
"guitar tuner"
] | As regular readers will know, here at Hackaday we are great enthusiasts for the PCB as an art form. On a special level of their own in that arena are the Boldport kits from [Saar Drimer], superlative
objets d’art
that are beautifully presented and a joy to build.
The trouble some people find with some of their Boldport... | 1 | 1 | [
{
"comment_id": "4956789",
"author": "Nad",
"timestamp": "2018-08-31T04:55:43",
"content": "The post has been verified nice by Jane",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,374,239.006386 | ||
https://hackaday.com/2018/08/30/bladerf-2-0-micro-is-smaller-more-powerful/ | BladeRF 2.0 Micro Is Smaller, More Powerful | Richard Baguley | [
"Radio Hacks"
] | [
"bladeRF",
"PortableSDR",
"sdr"
] | When it was
launched in 2013
, the BladeRF was one of the most powerful of the new generation of Software Defined Radios. Now, Nuand, the producers of the BladeRF are looking to up the ante again with the
BladeRF 2.0 Micro
. This new version has a huge list of changes and improvements, including a more bad-ass FPGA pro... | 32 | 9 | [
{
"comment_id": "4955820",
"author": "Truth",
"timestamp": "2018-08-31T00:36:23",
"content": "The most strategic change is that they have upgraded the LMS6002M to a AD9361 as their transceiver chip (the same chip that is used by Ettus Research in their B210). Basically they have stopped giving money... | 1,760,374,238.858929 | ||
https://hackaday.com/2018/08/30/metroid-zelda-and-castelvania-auto-mapped-with-nes-emulation-heuristics/ | Metroid, Zelda, And Castelvania Auto-Mapped With NES Emulation & Heuristics | Lewin Day | [
"Nintendo Hacks",
"Software Hacks"
] | [
"emulation",
"emulator",
"nes",
"nintendo"
] | The NES was one of the flagship consoles of the glorious era that was the 1980s. Many of the most popular games on the platform involved some sort of adventure through scrolling screens — Metroid, Super Mario, and Zelda all used this common technique. For many games, keeping track of the map was a huge chore and meant ... | 11 | 5 | [
{
"comment_id": "4954653",
"author": "Ren",
"timestamp": "2018-08-30T20:08:55",
"content": "Wow! That web page (its research and explanations) is impressive!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4955046",
"author": "Ken Moromisato",
"timestam... | 1,760,374,239.216498 | ||
https://hackaday.com/2018/08/30/turning-a-fitness-tracker-into-an-eeg/ | Turning A Fitness Tracker Into An EEG | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"brainwaves",
"eeg",
"neurosky"
] | Several years ago, a company called Neurosky came out with an interesting chipset meant to be put in an EEG headset. This chipset would track your brainwaves, do some fancy math, and output a few numbers based on the Delta, Gamma, Alpha, and Beta waves in your brain. Of course, the senseable thing to do with this techn... | 11 | 5 | [
{
"comment_id": "4954572",
"author": "Ostracus",
"timestamp": "2018-08-30T19:48:47",
"content": "Using black-box testing to tease out needed information.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4954643",
"author": "jafinch78",
"timestamp": "2018... | 1,760,374,239.265478 | ||
https://hackaday.com/2018/08/30/gsm-phone-network-at-emf-camp-built-on-raspberry-pi-and-limesdr/ | GSM Phone Network At EMF Camp Built On Raspberry Pi And LimeSDR | Jenny List | [
"Cellphone Hacks",
"cons",
"Engineering",
"Hackaday Columns",
"Radio Hacks"
] | [
"cellular",
"Electromagnetic Field 2018",
"emf",
"emfcamp",
"gsm"
] | The Electromagnetic Field 2018 hacker camp in the UK will have its own GSM phone network, and as we have already covered
its badge will be a fully-functional GSM phone
. This is as far as we are aware a first in the world of badges, and though it may not be a first in hacker camp connectivity it is still no mean achiev... | 22 | 9 | [
{
"comment_id": "4953851",
"author": "Ren",
"timestamp": "2018-08-30T17:06:50",
"content": "So, they all say “Base Station”.Will there be a Base Base Station to rule them all?Or would that be a “Base Station Base”? Hmmmm….",
"parent_id": null,
"depth": 1,
"replies": [
{
"... | 1,760,374,239.170064 | ||
https://hackaday.com/2018/08/30/competitive-soldering-is-now-a-thing/ | Competitive Soldering Is Now A Thing | Brian Benchoff | [
"cons",
"contests"
] | [
"cons",
"contest",
"DEF CON",
"DEFCON 26",
"Hardware Hacking Village",
"smd",
"Solder Skills Village",
"soldering",
"soldering challenge",
"surface mount"
] | At Hackaday, we’re constantly impressed by the skill and technique that goes into soldering up some homebrew creations. We’re not just talking about hand-soldering 80-pin QFNs without a stencil, either: there are people building charlieplexed LED arrays out of bare copper wire, and using Kynar wire for mechanical stabi... | 51 | 16 | [
{
"comment_id": "4953675",
"author": "scott t",
"timestamp": "2018-08-30T15:53:18",
"content": "I might qualify for the soldering special olympics",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4953862",
"author": "Ren",
"timestamp": "2018-08... | 1,760,374,238.782698 | ||
https://hackaday.com/2018/08/29/this-is-the-raspberry-pi-robot-to-beat-all-others/ | This Is The Raspberry Pi Robot To Beat All Others | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"raspberry pi",
"robot"
] | Before the introduction of the Raspberry Pi, building robots was
hard
. The best solution to turning motors on a chassis was repurposing an old roomba. For the brain, maybe you could throw Linux on a router and move your rover around with an old Linksys. Before that, you could buy a crappy robotics kit, thrown together... | 13 | 6 | [
{
"comment_id": "4948253",
"author": "Ren",
"timestamp": "2018-08-29T18:46:59",
"content": "So along with shields, feathers, capes, hats…we now have bonnets…(yeah, I know, it was used because of the word robot and bonnet fit together)",
"parent_id": null,
"depth": 1,
"replies": [
{... | 1,760,374,238.972428 | ||
https://hackaday.com/2018/08/29/all-the-badges-of-def-con-26-vol-3/ | All The Badges Of DEF CON 26 (vol 3) | Mike Szczys | [
"cons",
"Hackaday Columns",
"Roundup",
"Wearable Hacks"
] | [
"add-ons",
"badgelife",
"badges",
"DEF CON",
"DEFCON 26",
"unofficial"
] | I tried my best to see every badge and speak with every badge maker at DEF CON 26. One thing’s for sure, seeing them all was absolutely impossible this year, but I came close. Check out the great badges shown off in
volume 1
and in
volume 2
of this series. The game is afoot, and if you are headed to a hacker conference... | 7 | 6 | [
{
"comment_id": "4947794",
"author": "alfcoder",
"timestamp": "2018-08-29T17:26:30",
"content": "yeah, but why not zoidberg?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4947817",
"author": "Ren",
"timestamp": "2018-08-29T17:32:43",
"content": "s... | 1,760,374,238.922612 | ||
https://hackaday.com/2018/08/29/friday-hack-chat-gnu-radio/ | Friday Hack Chat: GNU Radio | Brian Benchoff | [
"Software Development",
"Wireless Hacks"
] | [
"GnuRadio",
"Hack Chat",
"radio",
"sdr",
"software defined"
] | Software defined radio picked up a lot of popularity when it was discovered that cheap USB TV tuners were functional bits of hardware that could become SDRs. It’s the software that makes this possible, and when it comes to SDR software, there’s no better tool than GNU Radio.
For this week’s Hack Chat
we’re going to sit... | 4 | 2 | [
{
"comment_id": "4947656",
"author": "dave",
"timestamp": "2018-08-29T16:42:49",
"content": "I have been interested in pairing a FL2K and RTL-SDR along with some band passing and amplification to make an amateur transceiver.I would love to see some AM, FM, SSB, and some digital mode decode tutorials... | 1,760,374,239.406323 | ||
https://hackaday.com/2018/08/29/a-scratch-built-drill-press-vise-from-scrap/ | A Scratch-Built Drill Press Vise From Scrap | Dan Maloney | [
"Tool Hacks"
] | [
"clamp",
"drill",
"drill press",
"fabrication",
"ficturing",
"steel",
"threaded rod",
"tools",
"vise",
"welding"
] | Never underestimate the importance of fixturing when you’re machining parts. No matter what the material, firmly locking it down is the key to good results, and may be the difference between a pleasant afternoon in the shop and a day in the Emergency Room. Flying parts and shattered tooling are no joke, but a lot of ti... | 12 | 5 | [
{
"comment_id": "4947545",
"author": "Ren",
"timestamp": "2018-08-29T15:53:42",
"content": "Is the angle iron from an old bed frame?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4947570",
"author": "Ren",
"timestamp": "2018-08-29T16:03:56",... | 1,760,374,239.526053 | ||
https://hackaday.com/2018/08/29/stratolaunch-announces-carrier-aircraft-with-largest-wingspan-ever/ | The Largest Aircraft Ever Built Will Soon Launch Rockets To Space | Brian Benchoff | [
"Current Events",
"Featured",
"News",
"Original Art",
"Space"
] | [
"747",
"Burt Rutan",
"orbit",
"rocket",
"spaceplane",
"Stratolaunch"
] | Deep in the mojave, the largest aircraft ever made will soon be making test flights. This is the Stratolaunch, and it’s measured the largest to ever fly based on wingspan.
The Stratolaunch
was constructed out of two 747s, and is designed for a single purpose: as a mobile launch platform for orbital rockets.
There are a... | 57 | 18 | [
{
"comment_id": "4947221",
"author": "Mike Massen",
"timestamp": "2018-08-29T14:35:48",
"content": "Tah nice writeup, great to see developments shades of Sky Captain movie, ambitious in respect of 747’s, how they manage structural issues would be of interest, could it lead to pair of 787 fuselages i... | 1,760,374,240.170737 | ||
https://hackaday.com/2018/08/29/power-steering-pump-repurposed-for-great-speed/ | Power Steering Pump Repurposed For Great Speed | Bryan Cockfield | [
"Transportation Hacks"
] | [
"battery",
"bicycle",
"bike",
"ebike",
"electric",
"homemade",
"motor",
"motorized",
"power steering pump"
] | Electric bikes are getting a lot of attention lately. Pretty much anyone can buy a kit online and get a perfectly street legal ride with plenty of range. But if you don’t want to take the kit route, and you’d rather take a tack that will get you noticed more around these parts, take some notes from [Jule553648]’s recen... | 45 | 8 | [
{
"comment_id": "4946431",
"author": "Mike Massen",
"timestamp": "2018-08-29T11:11:06",
"content": "Good experimental use of ex automotive gear :-)Now could you use the hydraulic side to also do something interesting, shockie’s pressurising to change mode of suspension perhaps. With enough of those ... | 1,760,374,239.931321 | ||
https://hackaday.com/2018/08/29/raspberry-pi-as-433-mhz-to-mqtt-gateway/ | Raspberry Pi As 433 MHz To MQTT Gateway | Tom Nardi | [
"home hacks",
"Raspberry Pi",
"Wireless Hacks"
] | [
"433 mhz",
"environmental monitoring",
"home automation",
"home-assistant",
"sensors"
] | Many low-cost wireless temperature and humidity sensors use a 433 MHz transmitter to send data back to their base stations. This is a great choice for the manufacturer of said devices because it’s simple and the radios are cheap, but it does limit what we as the consumer can do with it a bit. Generally speaking, you wo... | 19 | 8 | [
{
"comment_id": "4945803",
"author": "SirJMD (@SirJMD)",
"timestamp": "2018-08-29T08:50:21",
"content": "Don’t get me wrong, it’s a nice build. But.. Sonoff RF bridge for $10 does the exact same.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4946907",
... | 1,760,374,239.789402 | ||
https://hackaday.com/2018/08/30/the-challenges-of-shipping-from-china-life-of-a-flailing-tube-man/ | The Challenges Of Shipping From China – Life Of A Flailing Tube Man | Bob Baddeley | [
"Business",
"Featured",
"Interest",
"Slider"
] | [
"customs",
"duties",
"shipping",
"shipping container",
"sourcing parts",
"tariff",
"tax"
] | Last summer was an exercise in developing a completely different kind of product from my normal wheelhouse; a costume. My Halloween costume had been so popular that I decided to have a go at commercializing it, and that took me on a path into manufacturing that I hadn’t yet taken; shipping by boat from China. The short... | 97 | 26 | [
{
"comment_id": "4953507",
"author": "Ren",
"timestamp": "2018-08-30T14:42:58",
"content": "“weighing in at 550 kg (1200 lb in freedom units)”Ooooh! Jab!B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4954077",
"author": "Slartibart",
"t... | 1,760,374,240.071199 | ||
https://hackaday.com/2018/08/30/real-or-fake-robot-uses-ai-to-find-waldo/ | Real Or Fake? Robot Uses AI To Find Waldo | Adam Fabio | [
"Robots Hacks"
] | [
"machine vision",
"opencv",
"robot",
"vision",
"waldo",
"where's waldo"
] | The last few weeks have seen a number of tech sites reporting on
a robot which can find and point out Waldo
in those “Where’s Waldo” books. Designed and built by Redpepper, an ad agency. The robot arm is a UARM Metal, with a Raspberry Pi controlling the show.
A Logitech c525 webcam captures images, which are processed ... | 26 | 16 | [
{
"comment_id": "4952828",
"author": "theonewhoshouldnotbenamed",
"timestamp": "2018-08-30T11:12:33",
"content": "an ad agency got a post on Hackaday.. the technicalities are the least of their concerns, their final objective is already accomplished!",
"parent_id": null,
"depth": 1,
"rep... | 1,760,374,239.85178 | ||
https://hackaday.com/2018/08/30/the-electric-vehicles-of-electromagnetic-field-the-ottermobile-and-the-ottercar/ | The Electric Vehicles Of Electromagnetic Field: The Ottermobile And The Ottercar | Jenny List | [
"Transportation Hacks"
] | [
"Hacker camp vehicles",
"Hacky Racers",
"hoverboard motor"
] | If you’ve followed these pages over the last few weeks, you’ll have seen an occasional series of posts featuring the comedic electric vehicle creations of the British Hacky Racers series, which will make their debut at the forthcoming Electromagnetic Field hacker camp. So far these intrepid electro-racers have come lar... | 2 | 2 | [
{
"comment_id": "4953318",
"author": "Ren",
"timestamp": "2018-08-30T13:25:34",
"content": "My other car is an otter car?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4953341",
"author": "Ren",
"timestamp": "2018-08-30T13:31:56",
"content": "I on... | 1,760,374,240.210769 | ||
https://hackaday.com/2018/08/29/99-pinebook-gets-kde-neon-port/ | $99 Pinebook Gets KDE Neon Port | Tom Nardi | [
"ARM",
"laptops hacks",
"Linux Hacks"
] | [
"arm",
"kde",
"linux",
"Pine64",
"Pinebook"
] | If you’re the kind of person who likes small and cheap Linux devices, you’re definitely alive in the perfect moment in history. It seems as if every few months we’ve got another tiny Linux board competing for our pocket change, all desperate to try to dethrone the Raspberry Pi which has already set the price bar except... | 42 | 10 | [
{
"comment_id": "4951675",
"author": "cyk",
"timestamp": "2018-08-30T05:53:02",
"content": "Does someone want a notebook, that runs a stone old kernel (3.10, probably borrowed from Android), and that you actually can’t buy?",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,374,240.346372 | ||
https://hackaday.com/2018/08/29/linux-fu-modernize-your-command-line/ | Linux Fu: Modernize Your Command Line | Al Williams | [
"Linux Hacks"
] | [
"bash",
"command line",
"linux",
"Linux Fu"
] | If you use Linux and its associated tools on the desktop or on a Raspberry Pi, or on a server, you probably have used the command line. Some people love it and some people hate it. However, many of us have been using Linux for years and sometimes Unix before that, and we tend to use the same old tried-and-true tools. [... | 19 | 6 | [
{
"comment_id": "4950965",
"author": "W",
"timestamp": "2018-08-30T03:35:36",
"content": "eh, layers of cruft. Who’s brave enough to rip it all out and use something truly different like scsh? :)Or since “it’s not linux, it’s GNU/linux” or rather, GNU/win64 these days, how about PowerShell? I’m n... | 1,760,374,240.538136 | ||
https://hackaday.com/2018/08/29/faded-beauty-dmm-gets-an-oled-makeover/ | Faded Beauty DMM Gets An OLED Makeover | Dan Maloney | [
"Tool Hacks"
] | [
"34401A",
"digital multimeter",
"display",
"dmm",
"H-P",
"hewlett packard",
"oled",
"segment",
"spi",
"vfd"
] | When a fine piece of lab instrumentation crosses your bench, you’ve got to do your best to put it to work. But even in the highest quality devices no component lasts forever, especially vacuum tubes. For some vintage instruments with vacuum fluorescent displays, that means putting up with less-than-perfect digits in or... | 24 | 10 | [
{
"comment_id": "4949520",
"author": "duh",
"timestamp": "2018-08-29T23:37:11",
"content": "slick. like the look of dot-matrix even though it doesn’t have to be, and the higher-res elsewhere. makes it look like a cusom/oem display, rather’n just another raster-screen.And the bargraph is cool, lots o... | 1,760,374,240.604569 | ||
https://hackaday.com/2018/08/29/3d-printed-magnetic-dust-port-keeps-shop-clean/ | 3D Printed Magnetic Dust Port Keeps Shop Clean | Tom Nardi | [
"3d Printer hacks",
"Tool Hacks"
] | [
"3d printing",
"dust collection",
"table saw",
"vacuum"
] | Too often we hear that 3D printing is at best only a way for making prototypes before you invest in “real” manufacturing. At worst, it’s a way to make little toys for your desk or cubicle. The detractors say that 3D printing doesn’t lend itself to building practical devices, and even if you do manage to print something... | 33 | 10 | [
{
"comment_id": "4948604",
"author": "John",
"timestamp": "2018-08-29T20:07:18",
"content": "Seeing as there is already a commercial variant of this available as a dryer duct connector, it might be prudent to follow their design to possibly make the compatible.Just a thought on not reinventing the w... | 1,760,374,240.808835 | ||
https://hackaday.com/2018/08/27/let-the-musical-instrument-challenge-begin/ | Let The Musical Instrument Challenge Begin! | Mike Szczys | [
"Hackaday Columns",
"Musical Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize"
] | Today is the start of the
Musical Instrument Challenge
. This newest part of the
2018 Hackaday Prize
asks you to go far beyond what we’re used to seeing from modern musical instrumentation. Twenty entries will be awarded $1,000 each and go on to compete in the final round of the Hackaday Prize.
Imagine music without th... | 25 | 6 | [
{
"comment_id": "4932606",
"author": "Jii",
"timestamp": "2018-08-27T19:04:26",
"content": "I have the most incredible air guitar, just plain awesome! There’s nothing like it. Did i win?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4932848",
"autho... | 1,760,374,240.889912 | ||
https://hackaday.com/2018/08/27/fosscon-2018-hacking-the-indego-bike-sharing-api/ | FOSSCON 2018: Hacking The Indego Bike Sharing API | Tom Nardi | [
"cons",
"Hackaday Columns",
"Slider",
"Software Development",
"Transportation Hacks"
] | [
"api",
"bike sharing",
"FOSSCON",
"Indego"
] | It’s often said that necessity of the mother of invention, but as a large portion of the projects we cover here at Hackaday can attest, curiosity has to at least be its step-mother. Not every project starts with a
need
, sometimes it’s just about understanding how something works. That desire we’ve all felt from time t... | 5 | 3 | [
{
"comment_id": "4932081",
"author": "Ren",
"timestamp": "2018-08-27T17:59:07",
"content": "I’m thinking of starting a gofundme to build a Landmaster II.B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4933603",
"author": "Black Mage",
"tim... | 1,760,374,240.935832 | ||
https://hackaday.com/2018/08/27/self-folding-origami-from-a-3d-printer/ | Self Folding Origami From A 3D Printer | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"oragami"
] | If you’ve done much 3D printing, you probably curse how plastic warps as it cools down and heats. There’s nothing more upsetting than watching a six hour print start curling off the bed and starting its inexorable march to the trash can. However, researchers at Carnegie Mellon have found a way to harness that tendency ... | 12 | 6 | [
{
"comment_id": "4931428",
"author": "John Pfeiffer, Evil Genius!",
"timestamp": "2018-08-27T15:50:09",
"content": "Any sufficiently advanced Maker should be indistinguishable from a sorcerer. ✨",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4931474",
... | 1,760,374,240.990942 | ||
https://hackaday.com/2018/08/27/life-on-contract-moving-to-asia-and-setting-up-a-company/ | Selling Everything, Moving To Asia, And Setting Up A Company | Sean Boyce | [
"Business",
"Featured",
"Interest",
"Slider"
] | [
"Asia",
"business",
"company",
"entrepreneur",
"Freelancing"
] | Today I don’t have a hack for you. I have a story, one that I hope will prove useful to a few of you who are considering a move to Asia to chase opportunities here.
Seven years ago, I was a pretty stereotypical starving hacker. I had five jobs: A full-time dead-end job in biotech, and four part-time or contract gigs th... | 50 | 11 | [
{
"comment_id": "4931082",
"author": "Bob Alexander",
"timestamp": "2018-08-27T14:22:39",
"content": "You’re able to do hardware design, programming, and something that the bio-tech industry needs, and yet you were living near the poverty line?? I don’t understand how that happened.",
"parent_id... | 1,760,374,241.356561 | ||
https://hackaday.com/2018/08/27/time-stretching-zoetrope-animation-runs-longer-than-it-should/ | Time-Stretching Zoetrope Animation Runs Longer Than It Should | Steven Dufresne | [
"Video Hacks"
] | [
"3d printed",
"animation",
"zoetrope"
] | 3D printers have long since made it easy for anyone to make 3-dimensional zoetropes but did you know you can take advantage of a 4th dimension by stretching time? Previously the duration of a zoetrope animation would be however long it took for the platform to rotate once. To make it more interesting to watch for longe... | 11 | 7 | [
{
"comment_id": "4930320",
"author": "TERRA Operative",
"timestamp": "2018-08-27T11:29:02",
"content": "For those who like Zoetropes, there is a massive one in the Ghibli museum in Tokyo.Multiple levels and a lot going on in the small-car sized cabinet.The Ghibli museum is a must see for animation f... | 1,760,374,241.224388 | ||
https://hackaday.com/2018/08/27/the-best-new-quad-is-a-bicopter/ | The Best New Quad Is A Bicopter | Brian Benchoff | [
"drone hacks"
] | [
"Bicopter",
"drone",
"rcexplorer",
"rcexplorer.se"
] | RCExplorer, or [David], or just ‘The Swede’,
has come up with a bicopter kit
. Yes, there are a lot of people making frames and kits for quadcopter, multicopters, drones, and so forth, but [David] is really the leader in
weird
multicopters. Now, we have the weirdest multicopter imaginable as a kit, complete with firmwa... | 64 | 14 | [
{
"comment_id": "4929194",
"author": "jonititan",
"timestamp": "2018-08-27T08:27:01",
"content": "Wing lift is hardly free. It adds induced drag as well as increased skin fiction drag.That said as cool as this is the reason we haven’t seen it much before is because typically engines sized for VTOL ... | 1,760,374,241.167317 | ||
https://hackaday.com/2018/08/26/2018-electromagnetic-field-badge-its-an-entire-phone/ | 2018 Electromagnetic Field Badge: It’s An Entire Phone! | Jenny List | [
"Cellphone Hacks",
"cons",
"Slider"
] | [
"badge",
"badgelife",
"emf",
"EMF camp",
"EMF camp 2018"
] | As is always the case with a significant hacker camp, we’ve been awaiting the official badge announcement for the upcoming Electromagnetic Field 2018 hacker camp with huge interest. These badges, for readers who may have been on Mars for the past few years, are part of a lively scene of wearable electronics at hacker c... | 16 | 8 | [
{
"comment_id": "4928741",
"author": "sammachin",
"timestamp": "2018-08-27T06:44:53",
"content": "External calls from the GSM network will be possible; “Hi Mum I’m calling you from my badge, what?, No I’ve not been drinking”",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,241.060848 | ||
https://hackaday.com/2018/08/26/3d-printing-a-printing-press/ | 3D Printing A Printing Press | Jenny List | [
"3d Printer hacks",
"Tool Hacks"
] | [
"art",
"press",
"printmaking",
"printmaking press",
"roller press"
] | If you move among artists, you may have encountered a few printmakers. They create a drawing by cutting through a wax layer that has been deposited on a sheet of copper, then etching the plate and removing the wax. Ink is then rolled onto the plate and cleaned from the flat surface, remaining in the cracks created by t... | 3 | 1 | [
{
"comment_id": "4929644",
"author": "Dan",
"timestamp": "2018-08-27T09:44:38",
"content": "Given that presses are usually made of steel or cast iron, and the rollers are steel, i’m Kinda skeptical that. 3D printed one would be any good – either in print quality or durability. Though I note this one... | 1,760,374,241.263014 | ||
https://hackaday.com/2018/08/26/rasberry-pi-poe-hat-released/ | Rasberry Pi PoE Hat Released | Brian Benchoff | [
"News",
"Raspberry Pi"
] | [
"PoE",
"raspberry pi",
"raspberry pi hat"
] | It was announced at the beginning of March, but
now the Raspberry Pi Power over Ethernet (PoE) hat is out
. Thanks to the addition of a new 4-pin header on the Raspberry Pi 3 Model B+, the Pis can get power from an Ethernet cable, provided you’ve got the setup to deliver PoE.
This is a remarkable bit of engineering, ev... | 37 | 15 | [
{
"comment_id": "4927220",
"author": "Mark",
"timestamp": "2018-08-26T23:08:37",
"content": "I pre-ordered one of these. Was so annoyed when I realised it doesn’t pass-through the GPIO. Just what is the point?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4... | 1,760,374,241.432792 | ||
https://hackaday.com/2018/08/26/soft-hydraulic-muscles-lift-weights-as-a-team/ | Soft Hydraulic Muscles Lift Weights As A Team | Steven Dufresne | [
"Robots Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"aramid",
"hydraulic",
"hydraulic muscles"
] | Working with hydraulics usually means having a fluid tank and valves. [consciousflesh] does away with both those for
his DIY hydraulic artificial muscles
. Instead, he uses a pair of muscles, both preloaded with fluid. To contract one, he pumps the fluid into the other, expanding that one, and vice versa. A bidirection... | 17 | 7 | [
{
"comment_id": "4927042",
"author": "Mojo Jojo",
"timestamp": "2018-08-26T21:56:57",
"content": "Let mankind become divided into a human revolution lolBut on a serious note, this seems a low powered option to create exo skeletons, if someone could create a device to recover a lot of the used energy... | 1,760,374,241.48872 | ||
https://hackaday.com/2018/08/26/demystifying-the-esp8266-with-a-series-of-tutorials/ | Demystifying The ESP8266 With A Series Of Tutorials | Jenny List | [
"Microcontrollers"
] | [
"arduino",
"c++",
"ESP8266",
"lua",
"tutorial"
] | If your interest has been piqued by the inexpensive wireless-enabled goodness of the ESP8266 microcontroller, but you have been intimidated by the slightly Wild-West nature of the ecosystem that surrounds it, help is at hand. [Alexander]
is creating a series of ESP8266 tutorials
designed to demystify the component and ... | 28 | 9 | [
{
"comment_id": "4925808",
"author": "Miles Archer",
"timestamp": "2018-08-26T17:42:02",
"content": "This is a welcome addition, but I have to say, I didn’t find the ESP8266 to be particularly mystifying. I used an Adafruit board with the Arduino toolset a couple of years ago and it was as straightf... | 1,760,374,241.658349 | ||
https://hackaday.com/2018/08/26/perf-board-pyrotechnics-courtesy-of-a-high-voltage-supply/ | Perf Board Pyrotechnics Courtesy Of A High-Voltage Supply | Dan Maloney | [
"Misc Hacks"
] | [
"arc",
"arcing",
"coil",
"discharge",
"high voltage",
"hv",
"testing"
] | You may have asked yourself at one time or another, “Self, what happens when you pass 100 thousand volts through a printed circuit board?” It’s a good question, and [styropyro] put together
this fascinating bit of destructive testing
to find out.
Luckily, [styropyro] is well-positioned to explore the high-voltage realm... | 21 | 10 | [
{
"comment_id": "4925092",
"author": "Mike Massen",
"timestamp": "2018-08-26T14:14:43",
"content": "Cool, didn’t expect the path permutations, Noether might be turning in her grave.Opens up a couple of intriguing display approach possibilities, thanks for posting :-)",
"parent_id": null,
"de... | 1,760,374,241.713614 | ||
https://hackaday.com/2018/08/26/you-can-add-wireless-charging-to-iphone-kinda/ | You Can Add Wireless Charging To IPhone… Kinda | Mike Szczys | [
"Cellphone Hacks",
"iphone hacks"
] | [
"flexible PCB",
"inductive charging",
"shenzhen",
"Strange Parts",
"wireless charging"
] | We could watch cellphone teardown videos all day long. There’s something pleasing about seeing how everything is packed into such a small enclosure. From the connectors, to that insidious glue, to the minuscule screws, [Scotty Allen] has a real knack for giving us a great look at the teardown process. Take a look at hi... | 9 | 4 | [
{
"comment_id": "4924666",
"author": "Bob Fleming",
"timestamp": "2018-08-26T11:45:19",
"content": "But iPhones have wireless charging already. It was added in the iOS 8 software update. It’s a feature called “Wave”. You put your iPhone in the microwave and switch it on for 60s in a 700W oven:htt... | 1,760,374,241.760299 | ||
https://hackaday.com/2018/08/26/arduino-gets-command-line-interface-tools-that-let-you-skip-the-ide/ | Arduino Gets Command Line Interface Tools That Let You Skip The IDE | Al Williams | [
"Arduino Hacks",
"News",
"Slider"
] | [
"arduino",
"arduino-cli",
"build",
"cli",
"command line",
"command line interface",
"makefile"
] | Arduino now has
an officially supported command-line interface
. The project, called arduino-cli, is the first time that the official toolchain has departed from the Java-based editor known as the Arduino IDE. You can see the official announcement video below.
Obviously this isn’t a new idea.
Platform IO
and other comm... | 49 | 20 | [
{
"comment_id": "4924154",
"author": "Biomed",
"timestamp": "2018-08-26T08:07:19",
"content": "Definite upgrade.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4924157",
"author": "Severe Tire Damage",
"timestamp": "2018-08-26T08:09:34",
"content":... | 1,760,374,241.84602 | ||
https://hackaday.com/2018/08/25/quadcopter-ditches-batteries-flies-on-solar-power-alone/ | Quadcopter Ditches Batteries; Flies On Solar Power Alone | Richard Baguley | [
"drone hacks",
"Solar Hacks"
] | [
"drone",
"solar"
] | It seems kind of obvious when you think about it: why not just stick a solar panel on a quadcopter so it can fly on solar power? Unfortunately, physics is a cruel mistress, and it gets a bit more complex when you look at problems like weight to power ratios, panel efficiency, and similar tedious technical details. This... | 34 | 13 | [
{
"comment_id": "4923862",
"author": "Gravis",
"timestamp": "2018-08-26T05:33:22",
"content": "I had pondered about something like this but built entirely on a MEMS level. It would be pretty terrifying to have a fully autonomous assassination quads out to get you, especially if they are difficult t... | 1,760,374,241.91856 | ||
https://hackaday.com/2018/08/25/air-conditioner-remote-reverse-engineered-despite-esoteric-protocol/ | Air Conditioner Remote Reverse Engineered Despite Esoteric Protocol | Jenny List | [
"home hacks"
] | [
"aircon",
"infra red",
"ir",
"IR remote"
] | Infra-red remote control is something of a Done Deal when it comes to hardware hacking, it has been comprehensively reverse engineered, and there exist libraries and software packages to seamlessly take care of all its quirks. Just occasionally though, along comes an IR remote whose protocol doesn’t follow that well-wo... | 23 | 11 | [
{
"comment_id": "4923547",
"author": "Gregg Eshelman",
"timestamp": "2018-08-26T02:11:47",
"content": "I just want a remote that can turn a GE windows AC on and off, according to the setting of a thermostat across the room. Crazy AC temp sensor is wildly inaccurate, claiming it’s 65F in the room whe... | 1,760,374,242.035587 | ||
https://hackaday.com/2018/08/25/unmaker-2-0-is-wile-e-coyotes-dead-blow-hammer/ | UnMaker 2.0 Is Wile E Coyote’s Dead Blow Hammer | Lewin Day | [
"classic hacks",
"Tool Hacks"
] | [
"big hammer",
"dead blow hammer",
"hammer",
"steel shot"
] | Hammers! They’re good for knocking in nails, breaking things apart, and generally smashing up the joint, if you’re in such a mood. Typically, they’re made of iron or steel and come in a variety of sizes depending on the purpose — from tiny chipping hammers for delicate sculpture work, to the heavy-duty sledge for teari... | 13 | 9 | [
{
"comment_id": "4923109",
"author": "Lunatic charade",
"timestamp": "2018-08-25T23:16:53",
"content": "A hollow hammer made of wood? Looks nice but probably not long för this world…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4923280",
"author": "foxpu... | 1,760,374,241.973563 | ||
https://hackaday.com/2018/08/25/better-motion-through-electrostatic-actuators/ | Better Motion Through Electrostatic Actuators | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"electrostatic",
"electrostatic motor"
] | If you want something to move with electricity, odds are you’ll be using magnets. Deep inside every servo, every motor, and every linear actuator is a magnet and some coils of wire. There is another way of making things move, though: electrostatics. These are usually seen in tiny MEMS devices, and now we have tiny litt... | 10 | 5 | [
{
"comment_id": "4921760",
"author": "Mechanicus",
"timestamp": "2018-08-25T20:04:25",
"content": "800kv … more like 5kv but wish in one hand.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4922701",
"author": "dr.rockzo",
"timestamp": "2018-... | 1,760,374,242.086423 | ||
https://hackaday.com/2018/08/25/youve-never-see-a-solid-state-oscilloscope-like-this-one/ | You’ve Never See A Solid-State Oscilloscope Like This One | Jenny List | [
"hardware"
] | [
"analog oscilloscope",
"LED oscilloscope",
"oscilloscope"
] | Remember a the time before oscilloscopes had a brain? It’s easy to forget as we’ve become accustomed to a class of simple solid state oscilloscope using a microcontroller as signal processor and a small LCD display to show the resulting waveforms. They are commonly available as inexpensive kits, and while their bandwid... | 44 | 19 | [
{
"comment_id": "4920700",
"author": "Ehdu42",
"timestamp": "2018-08-25T17:10:17",
"content": "I have had pretty much this exact design in my mind for years now. I’m too much of a noob to have the chops to pull it off – but have definitely thought of using bar graph drivers and 4017 decade counter t... | 1,760,374,242.164884 | ||
https://hackaday.com/2018/08/25/the-electric-vehicles-of-electromagnetic-field-the-selby/ | The Electric Vehicles Of Electromagnetic FIeld: The Selby | Jenny List | [
"Transportation Hacks"
] | [
"electric vehicle",
"golf buggy",
"Hacker camp vehicles",
"Hacky Racers",
"PowaKaddy"
] | A couple of weekends ago on a farm in rural England with a cider orchard and a very good line in free-range pork sausages, there was the first get-together of the nascent British Hacky Racers series of competitions for comedic small electric vehicles. At the event, [Mark Mellors] shot a set of video interviews with eac... | 5 | 4 | [
{
"comment_id": "4920167",
"author": "Ostracus",
"timestamp": "2018-08-25T14:05:42",
"content": "“A couple of weekends ago on a farm in rural England with a cider orchard and a very good line in free-range pork sausages, there was the first get-together of the nascent British Hacky Racers series of ... | 1,760,374,242.213126 | ||
https://hackaday.com/2018/08/25/electric-shower-head-tear-down-makes-us-wince/ | Electric Shower Head Teardown Makes Us Wince | Al Williams | [
"Slider",
"Teardown"
] | [
"electric shower head",
"instant heater",
"mains",
"shower"
] | We have bought some really amazing stuff from the Chinese online shops. We’ve also bought stuff that was… less than satisfactory, let’s say. At the prices you pay, you usually just chalk up the bad stuff as a cost of doing business. But [DiodeGoneWild] has a teardown of something that could be very dangerous if it wasn... | 141 | 25 | [
{
"comment_id": "4919782",
"author": "Luke",
"timestamp": "2018-08-25T11:09:05",
"content": ">”Environmentally, that’s great since you don’t have a tank of water you keep heating and reheating ”Environmentally, electric showers and other “instant hot water” appliances aren’t great because they incre... | 1,760,374,242.441393 | ||
https://hackaday.com/2018/08/25/raspberry-shake-detects-quakes/ | Raspberry Shake Detects Quakes | Bryan Cockfield | [
"Science"
] | [
"accelerometer",
"earthquake",
"geology",
"raspberry pi",
"raspberry shake",
"seismograph",
"seismometer",
"volcano"
] | The Raspberry Pi’s goal, at least while it was being designed and built, was to promote computer science education by making it easier to access a working computer. What its low price tag also enabled was a revolution in distributed computing projects (among other things). One of those projects is the
Raspberry Shake, ... | 18 | 6 | [
{
"comment_id": "4919275",
"author": "Mike Massen",
"timestamp": "2018-08-25T08:58:46",
"content": "Hmm, I recall a hobby project (don’t call them amateurs any more without consequences) that had a set of largest early ‘super’ capacitors unloaded in a Faraday cage and not being charged & monitored w... | 1,760,374,242.545791 | ||
https://hackaday.com/2018/08/24/rc-boat-goes-brushless-for-speed-reliability/ | RC Boat Goes Brushless For Speed & Reliability | Lewin Day | [
"classic hacks"
] | [
"boat",
"brushless",
"brushless motor",
"radio control",
"radio control boat",
"rc",
"rc boat"
] | Remote control boats can be great fun, and come in all manner of forms. There are unpowered sailcraft, speedboats that scream under the power of internal combustion, and of course, those that move under electric power. The brushless motor revolution of the past 20 years in particular has proven capable of creating some... | 17 | 8 | [
{
"comment_id": "4918056",
"author": "geocrasher",
"timestamp": "2018-08-25T05:18:44",
"content": "Better Brushless Boat Blasts By Bumblinb Boffins.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4918057",
"author": "geocrasher",
"timestamp":... | 1,760,374,242.49479 | ||
https://hackaday.com/2018/08/24/tracking-the-office-coffee-machines-using-current-draw/ | Tracking The Office Coffee Machines Using Current Draw | Steven Dufresne | [
"cooking hacks"
] | [
"coffee",
"hall effect sensor",
"office coffee tracking"
] | Coffee is the lifeblood of hackers, IT workers, and apparently, IT workers who are also hackers. [Omerfarukz] is clearly the latter. He works as part of a large team spread over multiple floors, all with coffee machines, any one of which is fair game. The problem is knowing which one has coffee that is ready to pour. H... | 16 | 7 | [
{
"comment_id": "4917639",
"author": "RW ver 0.0.1",
"timestamp": "2018-08-25T02:06:38",
"content": "The first civilian internet “thing” might have been a coffee pot …https://en.wikipedia.org/wiki/Trojan_Room_coffee_pot",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment... | 1,760,374,242.705492 | ||
https://hackaday.com/2018/08/24/this-hackable-phone-makes-wifi-calls/ | This Hackable Phone Makes WiFi Calls. | Brian Benchoff | [
"Wireless Hacks"
] | [
"ESP-32",
"feature phone",
"nokia brick",
"open source",
"open source cellphone",
"smartphone",
"WiPhone"
] | Over the years, we’ve seen dozens of projects that sell themselves as an ‘Open Source’ cellphone, a hackable cellphone, or some other confabulation of a microcontroller, screen, and a cellular module. The WiPhone is not one of these projects. That’s not to say it’s not an Open Source phone that’s intended to be hackabl... | 24 | 14 | [
{
"comment_id": "4917388",
"author": "RW ver 0.0.1",
"timestamp": "2018-08-24T23:05:09",
"content": "Sounds like you could get some nokia 5100/6100 handsets and degut and regut them with this.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4917402",
... | 1,760,374,242.766363 | ||
https://hackaday.com/2018/08/24/an-arduino-watch-without-a-clock/ | An Arduino Watch Without A Clock | Tom Nardi | [
"Arduino Hacks",
"clock hacks",
"Microcontrollers"
] | [
"atmega328p",
"led",
"minimalist",
"oscillator",
"watch"
] | When you show up at a party wearing this bare PCB watch, there are effectively two possible reactions you might receive from the other people there. Either they are going to snicker at the nerd who’s wearing a blinking circuit board on their wrist in public, or they are going to marvel at the ridiculously low part coun... | 27 | 13 | [
{
"comment_id": "4917153",
"author": "David Ehnebuske",
"timestamp": "2018-08-24T20:48:10",
"content": "While the factory calibration may only be +/- 10%, the 8 MHz oscillator is almost certainly stable enough to do much better than 15 sec/day. A calibration run of a few days will let you discover t... | 1,760,374,242.835319 | ||
https://hackaday.com/2018/08/24/this-is-your-last-chance-to-design-the-greatest-human-computer-interface/ | This Is Your Last Chance To Design The Greatest Human Computer Interface | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"hci",
"Human Computer Interface Challenge"
] | This is your last chance to get your project together for the
Human Computer Interface Challenge
in this year’s Hackaday Prize. We’re looking for innovative interfaces for humans to talk to machines or machines to talk to humans. These are projects that make technology more intuitive, more fun, and a more natural activ... | 9 | 5 | [
{
"comment_id": "4916918",
"author": "Ostracus",
"timestamp": "2018-08-24T18:53:06",
"content": "“We’re looking for innovative interfaces for humans to talk to machines or machines to talk to humans. ”Nothing can top, “jacking into” cyberspace.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,374,242.878522 | ||
https://hackaday.com/2018/08/24/how-to-mash-up-ble-nodejs-and-mqtt-to-get-internet-of-things/ | How To Mash Up BLE, NodeJS, And MQTT To Get Internet Of Things | Inderpreet Singh | [
"Hackaday Columns",
"how-to",
"Original Art",
"Skills",
"Software Development"
] | [
"ble",
"diy",
"internet of things",
"IoT",
"mqtt",
"Nodejs",
"tutorial"
] | We’re living in the world of connected devices. It has never been easier to roll your own and implement the functionality you actually want, rather than live with the lowest common denominator that the manufacture chose.
In a previous article I walked though
a small python script to talk to a BLE light
and used it to c... | 10 | 6 | [
{
"comment_id": "4916127",
"author": "hackadave",
"timestamp": "2018-08-24T16:35:15",
"content": "A couple of comments. This is quite a nice introduction to using BLE with NodeJS and MQTT but the architecture is very insecure. Firstly the devices should connect together over a secured LAN with a gat... | 1,760,374,242.935722 | ||
https://hackaday.com/2018/08/24/power-over-ethernet-splitter-improves-negotiating-skills/ | Power Over Ethernet Splitter Improves Negotiating Skills | Ben James | [
"Network Hacks",
"Peripherals Hacks"
] | [
"802.3af",
"active",
"passive",
"PoE",
"ripitapart",
"splitter"
] | Implementing PoE is made interesting by the fact that not every Ethernet device wants power; if you start dumping power onto any device that’s connected, you’re going to break things. The IEEE 802.3af standard states that the device which can source power should detect the presence of the device receiving power, before... | 18 | 3 | [
{
"comment_id": "4915994",
"author": "foxpup",
"timestamp": "2018-08-24T15:47:15",
"content": "Looks very similar to the wisdom implemented with level 1 and 2 Electric Vehicle charging stations. You would have a relay switch controlled at the mains source by a small controller there and a similar u... | 1,760,374,244.525557 | ||
https://hackaday.com/2018/08/24/two-bit-circus-took-the-tech-we-love-and-built-an-amusement-park/ | Two Bit Circus Took The Tech We Love And Built An Amusement Park | Roger Cheng | [
"Featured",
"Misc Hacks",
"Virtual Reality"
] | [
"carnival",
"carnival games",
"two bit circus",
"twobitcircus"
] | Carnival games are simple to pick up, designed to provide a little bit of entertainment in exchange for your game ticket. Given that the main point is just to have some silly fun with your friends, most game vendors have little reason to innovate. But we are people who play with microcontrollers and gratuitous LEDs. We... | 5 | 2 | [
{
"comment_id": "4916114",
"author": "Ren",
"timestamp": "2018-08-24T16:29:00",
"content": "“Instead of a sommelier telling the room what they should taste in each wine, people submit individual experiences. That’s then tallied and results projected to show how crowd consensus compares to the “right... | 1,760,374,244.630229 | ||
https://hackaday.com/2018/08/24/fail-of-the-week-solid-state-relay-fails-spectacularly/ | Fail Of The Week: Solid State Relay Fails Spectacularly | Dan Maloney | [
"Fail of the Week"
] | [
"fire",
"fire safety",
"solder",
"solid state relay",
"ssr",
"TRIAC",
"water heater"
] | A lot of times these days, it seems like we hackers are a little like kids in a candy store. With so many cool devices available for pennies at the click of a mouse, it’s temptingly easy to order first and ask questions about quality later. Most of the time that works out just fine, with the main risk of sourcing a dod... | 120 | 32 | [
{
"comment_id": "4915046",
"author": "Danny Bokma",
"timestamp": "2018-08-24T11:03:54",
"content": "Or you could just buy a decent brand and not have your house burned down autonomously.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4915138",
"autho... | 1,760,374,245.215112 | ||
https://hackaday.com/2018/08/24/a-peek-at-the-mesmerizing-action-of-a-cycloidal-drive/ | A Peek At The Mesmerizing Action Of A Cycloidal Drive | Donald Papp | [
"3d Printer hacks",
"Robots Hacks",
"Slider"
] | [
"3d printed",
"cycloidal",
"cycloidal drive",
"desktop manufacturing",
"dexter",
"haddington dynamics",
"hdrobotics",
"robot arm",
"transmission"
] | Cycloidal drives are fascinating pieces of hardware, and we’ve seen them showing up in part due to their suitability for 3D printing. The
open source robot arm makers
[Haddington Dynamics] are among those playing with a cycloidal drive concept, and tucked away in their August 2018 newsletter was a link they shared to a... | 34 | 7 | [
{
"comment_id": "4914614",
"author": "John",
"timestamp": "2018-08-24T08:30:41",
"content": "Looking at the animated gif is there not loads of slop in the output shaft?I think I am missing something here.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "491461... | 1,760,374,244.706544 | ||
https://hackaday.com/2018/08/23/midi-association-releases-spec-for-trs-jacks/ | MIDI Association Releases Spec For TRS Jacks | Brian Benchoff | [
"Musical Hacks"
] | [
"connector",
"midi",
"MIDI Spec",
"TRS"
] | The MIDI spec was released in 1983, and for more than thirty years every synthesizer, drum machine, and piece of computer hardware with MIDI has sported an enormous DIN-5 jack on the back. Why did they choose such a large connector? Well, MiniDIN connectors hadn’t even been invented yet, and today even MiniDIN connecto... | 27 | 10 | [
{
"comment_id": "4914261",
"author": "macsimski",
"timestamp": "2018-08-24T05:36:55",
"content": "Cmon bryan. Not so over dramatic. Never had problems sourcing din jacks. Even sus or seven pin versions. You could at least have mentioned the flimsyness of the 2.5mm jack compared to the more sturdy di... | 1,760,374,244.768848 | ||
https://hackaday.com/2018/08/23/retro-uc-your-favorite-instruction-sets-on-custom-silicon/ | Retro-uC, Your Favorite Instruction Sets On Custom Silicon | Brian Benchoff | [
"hardware"
] | [
"Crowd Supply",
"crowdfunding",
"open source",
"retro-uc",
"silicon"
] | A few months ago, we caught wind of an interesting project in Big-O Open silicon. It’s a chip, loaded up with the great CPU cores of yore.
Now, it’s finally a project on Crowd Supply
. The Retro-uC project is an Open Source microcontroller for the retro geek, with a Zilog Z80, MOS 6502, and Motorola 68000 buried in the... | 29 | 10 | [
{
"comment_id": "4913472",
"author": "Terry",
"timestamp": "2018-08-24T02:12:49",
"content": "This seems cool but I’m at a loss where this would be useful.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4913870",
"author": "regdog",
"timestam... | 1,760,374,245.374188 | ||
https://hackaday.com/2018/08/23/low-quality-capacitors-turned-into-high-quality-temperature-sensors/ | Low-Quality Capacitors Turned Into High-Quality Temperature Sensors | Dan Maloney | [
"Misc Hacks"
] | [
"capacitor",
"ceramic",
"dielectric",
"rc",
"sensor",
"temperature",
"temperature coefficient",
"Y5V"
] | When life hands you a bunch of crummy capacitors, what do you do?
Make a whole bunch of temperature sensors
, apparently.
The less-than-stellar caps in question came to [pyromaniac303] by way of one of those all-in-one assortment kits we so love to buy. Stocked with capacitors of many values, kits like these are great ... | 19 | 10 | [
{
"comment_id": "4912961",
"author": "Greg",
"timestamp": "2018-08-23T23:09:26",
"content": "They have aging effect so dont expect great stability of such sensor",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4915559",
"author": "Greg A",
"ti... | 1,760,374,244.580238 | ||
https://hackaday.com/2018/08/23/using-modern-nintendo-controllers-on-the-c64/ | Using Modern Nintendo Controllers On The C64 | Tom Nardi | [
"classic hacks",
"Nintendo Hacks",
"Retrocomputing"
] | [
"adapter",
"commodore 64",
"nes classic edition",
"nintendo",
"wii"
] | There are plenty of people out there who still enjoy playing games on vintage computers like the Commodore 64. But while they likely return to these classic games themselves out of a sense of nostalgia, the feeling doesn’t always extend to the hardware itself. For example, one can enjoy playing
Impossible Mission
witho... | 12 | 7 | [
{
"comment_id": "4912551",
"author": "rnjacobs",
"timestamp": "2018-08-23T20:18:53",
"content": "Huh, the trick about detecting when the SID is discharging the capacitor and then manually pulling the node high at a fixed delay afterwards (to fake a specific R for the RC time constant the SID is meas... | 1,760,374,244.952366 | ||
https://hackaday.com/2018/08/23/listening-to-mains-power/ | Listening To Mains Power | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"audio",
"mains",
"mains power"
] | There’s a lot you can tell by looking at the waveform of your mains power. There are harmonics, transient changes, and periodic fluctuations that are correlated to the demand on the grid itself. Frequency shifts will tell you how fast or slow your clocks are running, and someone probably has a poorly isolated power lin... | 33 | 11 | [
{
"comment_id": "4912192",
"author": "William F. Dudley Jr.",
"timestamp": "2018-08-23T18:41:01",
"content": "Wouldn’t a single transformer perform the same function, with a lot less hardware? Line voltage in, audio out. Use a 6.3v “filament” transformer, and reduce the output level with a potenti... | 1,760,374,244.835557 | ||
https://hackaday.com/2018/08/23/circuit-vr-measuring-with-ltspice/ | Circuit VR: Measuring With LTSpice | Al Williams | [
"Hackaday Columns",
"Skills"
] | [
".meas",
"circuit vr",
"LTSpice",
"measure",
"thevenin equivalent"
] | Usually, with Circuit VR we look at some circuit in detail with simulation — usually LTSpice. This one will be a little meta because I wanted to look at a capability in LTSpice which ironically is very useful, but not often used. Along the way, though, we’ll look at why you get maximum power transfer when your source i... | 13 | 5 | [
{
"comment_id": "4911761",
"author": "Pat",
"timestamp": "2018-08-23T17:38:06",
"content": "You can also use LTSpice to calculate S-parameters as well, which is a bit of a hidden trick. First, instead of having an exterior series resistance, define the AC source as having a series resistance (e.g. 5... | 1,760,374,244.899925 | ||
https://hackaday.com/2018/08/23/call-for-proposals-hackaday-superconference/ | Call For Proposals: Hackaday Superconference | Mike Szczys | [
"cons"
] | [
"2018 Hackaday Superconference",
"call for proposals",
"Supercon"
] | It’s time to
submit your proposal for a talk or workshop at the 2018 Hackaday Superconference
!
Yep, it’s easy to procrastinate with the late days of summer upon us, but don’t miss out on your chance to present at the Ultimate Hardware Conference. We’re hungry for great stories about hardware creation. Before you have ... | 0 | 0 | [] | 1,760,374,245.250632 | ||
https://hackaday.com/2018/08/23/guardin-guarding-the-garden-turn-raspberry-pi-into-a-3rd-eye/ | Guardin, Guarding The Garden: Turn Raspberry Pi Into A 3rd Eye | Jenny List | [
"Raspberry Pi"
] | [
"camera",
"pan and tilt",
"raspberry pi",
"Raspberry pi camera"
] | If you are a gardener, you’ll know only too well the distress of seeing your hard work turned into a free lunch for passing herbivorous wildlife. It’s something that has evidently vexed [Jim], because he’s come up with
an automated Raspberry Pi-controlled turret
to seek out invading deer, and in his words: “Persuade th... | 16 | 6 | [
{
"comment_id": "4911176",
"author": "Nobody",
"timestamp": "2018-08-23T15:11:43",
"content": "That green piece looks like a RainBird sprinkler valve under the unit. It’s a Automated Deer Super Soaker.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4911203",
... | 1,760,374,245.429273 | ||
https://hackaday.com/2018/08/23/the-first-vending-machine-hacked-liquor-laws-the-puss-and-mew/ | The First Vending Machine Hacked Liquor Laws: The Puss And Mew | Richard Baguley | [
"Beer Hacks",
"Featured",
"History",
"Original Art",
"Slider"
] | [
"Gin",
"Hacking History",
"Puss and Mew",
"vending"
] | It is fair to say that many technologies have been influenced by human vices. What you may not realize is that vending machines saw their dawn in this way, the first vending machine was created to serve booze. Specifically, it was created to serve gin, the tipple of choice of the early 18th century. it was created as a... | 37 | 8 | [
{
"comment_id": "4911020",
"author": "KOB",
"timestamp": "2018-08-23T14:12:42",
"content": "Hero of Alexandria had produced a coin-operated vending machine for holy water around 10AD, which is definitely earlier than this, but may not be the first vending machine.",
"parent_id": null,
"depth... | 1,760,374,245.50707 | ||
https://hackaday.com/2018/08/23/marines-3d-print-part-to-repair-multi-million-dollar-fighter/ | Marines 3D-Print Part To Repair Multi-Million Dollar Fighter | Dan Maloney | [
"3d Printer hacks",
"Slider",
"Weapons Hacks"
] | [
"airplane",
"fighter",
"jet",
"landing gear",
"Marine Corps",
"PETG",
"warfare"
] | The good news: all you need to complete the repair you’re working on is one small part. The bad news: it’s only available in a larger, expensive assembly. The worst news: shipping time is forever. We’ve all been there, and it’s a hard pill to swallow for the DIYer. Seems like a good use case for 3D-printing.
Now imagin... | 71 | 20 | [
{
"comment_id": "4910498",
"author": "barry99705",
"timestamp": "2018-08-23T11:43:58",
"content": "Lots of aircraft parts are that way. The springs that push the crew entry handles out on F-15Es would wear out and break. Couldn’t just buy the spring, you had to buy the whole handle assembly. Then ... | 1,760,374,245.680772 | ||
https://hackaday.com/2018/08/22/friday-hack-chat-hacking-for-mental-health/ | Friday Hack Chat: Hacking For Mental Health | Brian Benchoff | [
"Hackaday Columns"
] | [
"Hack Chat",
"mental health"
] | Quite often we see applications of hacking and DIY in the medical field. From 3D printed prosthetics to hacked insulin pumps, there’s a wide variety of stuff you can do, but what about psychology?
That’s what our Hack Chat this Friday is all about
.
Our guest for this week’s Hack Chat is Curt White. He’s been building ... | 19 | 10 | [
{
"comment_id": "4907929",
"author": "Brian",
"timestamp": "2018-08-22T19:33:35",
"content": "IRBs – a group of people of questionable sanity that are reviewing the effects of an experiment on a group of people being studied because they may have questionable sanity.Me? No problemo – have never both... | 1,760,374,245.573479 | ||
https://hackaday.com/2018/08/22/measure-resistance-the-colourful-way/ | Measure Resistance The Colourful Way | Jenny List | [
"ATtiny Hacks",
"Tool Hacks"
] | [
"ohmmeter",
"resistance",
"resistor colour code",
"resistors"
] | One of the first things anyone with an interest in electronics learns is the resistor colour code. The colour of the first band reveals the first figure, the second the subsequent figure, and the third a power-of-ten multiplier. At first you learn these colours, but eventually you just recognise the values through fami... | 30 | 10 | [
{
"comment_id": "4906961",
"author": "Delgir",
"timestamp": "2018-08-22T15:14:45",
"content": "Probably the most interesting detail for me is how they made the flex circuit board. Found more detail on another of their albums.https://www.flickr.com/photos/plusea/albums/72157684716598141",
"parent... | 1,760,374,245.74646 | ||
https://hackaday.com/2018/08/22/ask-hackaday-answered-the-tale-of-the-top-octave-generator/ | Ask Hackaday Answered: The Tale Of The Top-Octave Generator | Elliot Williams | [
"Ask Hackaday",
"Hackaday Columns",
"Microcontrollers",
"Musical Hacks"
] | [
"arduino",
"assembly language",
"AVR",
"cycle counting",
"impossible",
"music",
"organ"
] | We got a question from [DC Darsen], who apparently has a broken electronic organ from the mid-70s that needs a new top-octave generator. A top-octave generator is essentially an IC with twelve or thirteen logic counters or dividers on-board that produces an octave’s worth of notes for the cheesy organ in question, and ... | 57 | 14 | [
{
"comment_id": "4906714",
"author": "Image Perplexed",
"timestamp": "2018-08-22T14:30:09",
"content": "The artwork is great, as it usually is. But… can anyone explain to me what is going on there? Did Howard the Duck play an electric organ? Is there some cultural reference there that I am ignorant ... | 1,760,374,245.873848 | ||
https://hackaday.com/2018/08/22/giant-3d-printed-lock-helps-teach-picking/ | Giant 3D Printed Lock Helps Teach Picking | Tom Nardi | [
"3d Printer hacks",
"lockpicking hacks"
] | [
"3d printed",
"demonstration",
"lock picking",
"locksport"
] | Despite what the media might tell you, picking locks isn’t just for spies and guys wearing balaclavas. Those who pick as a hobby, or even competitively, think of locks as logic puzzles. Each lock is a unique challenge, and defeating it requires patience, dexterity, and perhaps most importantly the experience that comes... | 12 | 9 | [
{
"comment_id": "4906146",
"author": "Carlton Dodd",
"timestamp": "2018-08-22T12:24:47",
"content": "Perhaps springs could be wound from warmed filament. I’ve even seen 3D-printed forms to get the spiral of filament springs just right.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,246.387163 | ||
https://hackaday.com/2018/08/22/fcc-filing-reveals-tasty-hardware-mcsecrets/ | FCC Filing Reveals Tasty Hardware McSecrets | Tom Nardi | [
"ARM",
"hardware",
"Microcontrollers",
"Slider"
] | [
"automation",
"ble",
"fcc",
"McDonald's",
"nRF52832"
] | If you’ve visited a McDonald’s recently, you might have noticed something of a tonal shift. Rather than relying on angsty human teenagers to take customer orders, an increasing number of McDonald’s locations are now using self-serve kiosks. You walk up, enter your order on a giant touch screen, and then take an electro... | 121 | 32 | [
{
"comment_id": "4904968",
"author": "Mike Massen",
"timestamp": "2018-08-22T08:15:52",
"content": "Hmm, havent seen devicex these in Australia. There are menu driven kiosks but, only saw an order number on paper – I guess most of the stores are small do staff not far to walk to deliver.So this devi... | 1,760,374,246.107041 | ||
https://hackaday.com/2018/08/21/hardware-store-white-balance-reference/ | Hardware Store White Balance Reference | Tom Nardi | [
"digital cameras hacks",
"Tool Hacks"
] | [
"color correction",
"photography",
"reference",
"white balance"
] | We live in a time in which taking pictures is preposterously easy: take out your phone (assuming it wasn’t already in your hands), point it at something, and tap the screen. The camera hardware and software in even basic smartphones today is good enough that you don’t need to give it much more thought than that to get ... | 23 | 8 | [
{
"comment_id": "4904629",
"author": "Benik3",
"timestamp": "2018-08-22T06:55:05",
"content": "Interesting, that when you want to white balance in Photoshop, you must select gray object, not white…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4904654",
... | 1,760,374,245.938152 | ||
https://hackaday.com/2018/08/21/if-you-are-planning-on-building-your-own-space-shuttle/ | If You Are Planning On Building Your Own Space Shuttle… | Al Williams | [
"Space"
] | [
"avionics",
"nasa",
"Space Shuttle",
"STS"
] | One of the most complicated machines ever built was the US space shuttle (technically, the STS or Space Transportation System). Despite the title, we doubt anyone is going to duplicate it. However, one of the most interesting things about the shuttle’s avionics — the electronics that operate the machine — is that being... | 46 | 8 | [
{
"comment_id": "4903764",
"author": "regdog",
"timestamp": "2018-08-22T02:57:55",
"content": "I recall when they first started bringing notebook computers into space, but I never heard how they performed.As far as obsolete tech goes, some newspapers were still using paper tape up until they replace... | 1,760,374,246.332053 | ||
https://hackaday.com/2018/08/23/memristor-may-be-fake-news/ | Memristor May Be Fake News | Al Williams | [
"News"
] | [
"memristor"
] | The fundamental passive components of electronics are the resistor, the capacitor, the inductor, and the oscillator, right? Actually, no, oscillators aren’t considered fundamental components because they aren’t linear. Resistors, capacitors, and inductors are also irreducible. That is, you can’t combine other passive c... | 31 | 12 | [
{
"comment_id": "4909870",
"author": "richfiles",
"timestamp": "2018-08-23T08:10:37",
"content": "Ugh… Fake news is when a media creator twists or fabricates a story to push a narrative… Differing views on a developing technology/scientific principal don’t even remotely fall close to the real of “fa... | 1,760,374,246.60588 | ||
https://hackaday.com/2018/08/22/toil-in-style-with-salvaged-porsche-office-chairs/ | Toil In Style With Salvaged Porsche Office Chairs | Tom Nardi | [
"car hacks"
] | [
"airbag",
"car seat",
"Office Chair",
"porsche",
"salvage"
] | It seems as if everyone has finally decided to stop pretending that standing in front of a desk for 8+ hours was something anyone actually wanted to do, and once again embrace the classic adjustable office chair. But whether you’re writing code in a cubicle or are one of those people who apparently makes a living by ha... | 22 | 13 | [
{
"comment_id": "4909472",
"author": "RobHeffo",
"timestamp": "2018-08-23T05:15:32",
"content": "I wanted to do exactly this with a Model S drivers seat. Until the wrecking-yard who has a Model S wanted AU$1200 for the seat",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"com... | 1,760,374,246.44804 | ||
https://hackaday.com/2018/08/22/cross-correlation-makes-quick-work-of-ads/ | Cross-Correlation Makes Quick Work Of Ads | Kerry Scharfglass | [
"digital audio hacks",
"home entertainment hacks"
] | [
"ad",
"ad block",
"audio",
"fm radio",
"radio",
"raspberry pi",
"receiver"
] | Once relegated to the proverbial Linux loving Firefox user, ad blocking has moved into public view among increased awareness of privacy and the mechanisms of advertising on the internet. At the annual family gathering, when That Relative asks how to setup their new laptop, we struggle through a dissertation on the valu... | 25 | 8 | [
{
"comment_id": "4908864",
"author": "Dissy",
"timestamp": "2018-08-23T02:39:59",
"content": "Speaking of ad blocking, why does hackaday not yet have a donation link of some form?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4909419",
"author": "Br... | 1,760,374,246.532216 | ||
https://hackaday.com/2018/08/22/an-incredible-atx-amiga-4000-motherboard/ | An Incredible ATX Amiga 4000 Motherboard | Tom Nardi | [
"classic hacks",
"computer hacks"
] | [
"68030",
"amiga",
"Amiga 4000",
"atx",
"vintage computing"
] | No matter how far modern computer hardware advances, there’s still a fairly large group of people who yearn for the early days of desktop computing. There’s something undeniably appealing about these early systems, and while even the most hardcore vintage computer aficionado probably wouldn’t be using one as their dail... | 18 | 6 | [
{
"comment_id": "4908484",
"author": "RW",
"timestamp": "2018-08-22T23:18:29",
"content": "Awwww, I got super excited until I realised there’s no recreation of the custom chips. It requires original vintage chips.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id"... | 1,760,374,246.668611 | ||
https://hackaday.com/2018/08/22/build-your-own-two-stage-water-rockets/ | Build Your Own Two-Stage Water Rockets | Lewin Day | [
"classic hacks",
"Slider"
] | [
"rocket",
"water",
"water rocket"
] | Water rockets are one of the most fun and exciting science-adjacent activities one can take part in during the summer, and are popular with children and adults alike. Designs range from a bike pump with a cork in a bottle, up to significantly more advanced hardware.
[Air.command]’s two-stage water rocket definitely fit... | 15 | 8 | [
{
"comment_id": "4908074",
"author": "Dielectric",
"timestamp": "2018-08-22T20:19:29",
"content": "Haha, “science-adjacent”! Perfect description for those little canned experiments.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4908234",
"author": "Mike'... | 1,760,374,246.720741 | ||
https://hackaday.com/2018/08/22/better-ways-to-drive-nixie-tubes/ | Better Ways To Drive Nixie Tubes | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"ESP-8266",
"nixie",
"Nixie driver",
"nixie tube"
] | Ah, Nixie tubes. You’re not cool unless you have a few Nixie tubes sitting around, and you’re not awesome unless you’ve built your own Nixie tube clock. That’s what [Thomas]
is doing for his entry into the Hackaday Prize
, and he’s come up with a very low-cost way of doing it.
For the high voltage supply of this build,... | 3 | 1 | [
{
"comment_id": "4908467",
"author": "localroger",
"timestamp": "2018-08-22T23:06:29",
"content": "The cylindrical eye holes need a taper so you can get the form out, and all the edges need to be rounded; on a small project like this it doesn’t matter how much fiber you put in, those sharp edges wil... | 1,760,374,246.757897 | ||
https://hackaday.com/2018/08/22/simulate-pic-and-arduino-avr-designs-with-no-cloud/ | Simulate PIC And Arduino/AVR Designs With No Cloud | Al Williams | [
"Arduino Hacks",
"Microcontrollers",
"Slider",
"Tool Hacks"
] | [
"arduino",
"AVR",
"debugging",
"pic",
"simulation",
"SPICE"
] | I’ve always appreciated simulation tools. Sure, there’s no substitute for actually building a circuit but it sure is handy if you can fix a lot of easy problems before you start soldering and making PCBs. I’ve done quite a few posts on LTSpice and I’m also a big fan of the Falstad simulator in the browser. However, bot... | 17 | 8 | [
{
"comment_id": "4907774",
"author": "Moryc",
"timestamp": "2018-08-22T18:51:01",
"content": "Proteus VSM offers PIC/AVR/ARM simulation since at least 2012. And analog/digital SPICE simulation. It’s not free, but good things seldom are…",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,246.822444 | ||
https://hackaday.com/2018/08/21/plasma-etching-in-a-microwave/ | Plasma Etching In A Microwave | Brian Benchoff | [
"Tool Hacks"
] | [
"microwave",
"plasma",
"plasma etching"
] | Deep inside your smartphone are a handful of interesting miniature electromechanical devices. The accelerometer is a MEMS device, and was produced with some of the most impressive industrial processes on the planet. Sometimes, these nanoscale devices are produced with plasma etching, which sounds about as cool as it ac... | 10 | 6 | [
{
"comment_id": "4902992",
"author": "steve",
"timestamp": "2018-08-21T23:08:44",
"content": "Amazig. Just what I just happened to need for some graphene sensors",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4903230",
"author": "jafinch78",
"timestamp... | 1,760,374,246.866811 | ||
https://hackaday.com/2018/08/21/automated-turntable-for-3d-scanning/ | Automated Turntable For 3D Scanning | Tom Nardi | [
"3d Printer hacks",
"Arduino Hacks"
] | [
"arduino",
"easydriver",
"Photogrammetry",
"stepper",
"turntable"
] | Those just starting out in 3D printing often believe that their next major purchase after the printer will be a 3D scanner. If you’re going to get something that can print a three dimensional model, why not get something that can create said models from real-world objects? But the reality is that only a small percentag... | 16 | 6 | [
{
"comment_id": "4902991",
"author": "TGT",
"timestamp": "2018-08-21T23:08:13",
"content": "Photogrammetry: what all my clients think is a silver bullet and ravenously desire, and what I have to explain to them is way more of a massive pain in the ass than they think. Every single time.Why yes, I’d ... | 1,760,374,247.047972 | ||
https://hackaday.com/2018/08/21/turning-everything-into-a-tap-controller/ | Turning Everything Into A Tap Controller | Brian Benchoff | [
"Microcontrollers",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"piezo",
"tap controller"
] | Our entire life is staring at glowing rectangles, and all our surroundings are hard, flat surfaces. [Ben] had the idea to
turn those flat surfaces into a generic tap interface controller
, and his project for the Hackaday Prize might just do that.
Some of the prior art that went into this project includes
Ping Pong Plu... | 4 | 2 | [
{
"comment_id": "4902270",
"author": "Tyranis Khan",
"timestamp": "2018-08-21T19:25:07",
"content": "Gives new meaning to the phrase “I would tap that”.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4902579",
"author": "Nathan Clark",
"timestamp": "20... | 1,760,374,247.090366 | ||
https://hackaday.com/2018/08/21/all-the-badges-of-def-con-26-vol-2/ | All The Badges Of DEF CON 26 (vol 2) | Mike Szczys | [
"cons",
"Hackaday Columns",
"Roundup",
"Wearable Hacks"
] | [
"add-ons",
"badges",
"DEF CON",
"DEFCON 26",
"unofficial"
] | There were so many amazing unofficial badges at DEF CON this year that I can’t possibly cover them all in one shot. I tried to see every badge and speak with every badge maker — like a hardware safari. Join me after the jump for about fourteen more badges that I saw at DEF CON 26!
If you missed the first batch,
check t... | 6 | 6 | [
{
"comment_id": "4902580",
"author": "MrDe4d",
"timestamp": "2018-08-21T20:58:19",
"content": "Regarding the DC503 banglet badge: download the app called Bluefruit and let us know what you think (of the badge specifically, but also the app though we had no hand in creating that afiak)! The more bl... | 1,760,374,247.386003 | ||
https://hackaday.com/2018/08/21/blink-a-pi-win-a-prize/ | Blink A Pi, Win A Prize | Brian Benchoff | [
"contests",
"LED Hacks",
"Raspberry Pi"
] | [
"contests",
"led",
"raspberry pi",
"RGB LED",
"Visualize It With Pi"
] | You can plug in a Raspberry Pi, and you can blink a LED. You can visualize data,
and now there’s a contest on Hackaday.io
to show off your skills. Right now, we’re opening up the Visualize It With Pi contest on Hackaday.io. The challenge? Visualize data with LED strips and panels. Is that ‘data’ actually just a video o... | 5 | 5 | [
{
"comment_id": "4901540",
"author": "jmp0x2a",
"timestamp": "2018-08-21T16:14:05",
"content": "In the restrains section there is this “Project must use a Raspberry Pi device and LED strips or panels” while mentioning a project that uses a single LED, even the contest page shows some image that uses... | 1,760,374,247.134136 | ||
https://hackaday.com/2018/08/21/texture-trick-for-3d-prints-from-the-stone-age/ | Texture Trick For 3D Prints From The Stone Age | Tom Nardi | [
"3d Printer hacks"
] | [
"3d printing",
"print finishing",
"stone",
"Wood Fill"
] | Arguably one of the most difficult aspects of 3D printing is trying to make the finished product look like it
wasn’t
3D printed. It can take a lot of time and work to cover up the telltale layer lines (or striations, if you want to get fancy), especially if your 3D printer isn’t perfectly calibrated. While there aren’t... | 14 | 9 | [
{
"comment_id": "4901475",
"author": "Charles S Haase",
"timestamp": "2018-08-21T15:38:37",
"content": "taut",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4901476",
"author": "Charles S Haase",
"timestamp": "2018-08-21T15:39:09",
"co... | 1,760,374,247.494207 | ||
https://hackaday.com/2018/08/21/kathleen-booth-assembling-early-computers-while-inventing-assembly/ | Kathleen Booth: Assembling Early Computers While Inventing Assembly | Steven Dufresne | [
"Biography",
"Featured",
"Original Art",
"Software Development"
] | [
"assembler",
"assembly language",
"natural language processing",
"neural networks",
"relays",
"von neumann"
] | Imagine having to program your computer by rewiring it. For a brief period of time around the mid-1940s, the first general-purpose electronic computers worked that way. Computers like
ENIAC
initially had no internal storage for code. Programming it involved manipulating thousands of switches and cables. The positions o... | 11 | 6 | [
{
"comment_id": "4901296",
"author": "x vs y",
"timestamp": "2018-08-21T14:40:25",
"content": "I thought I recognised the name: hubby Andrew created Booth Coding, used in his multiplier. Booth Coding is a useful technique for reducing the size of arithmetic circuits that digital designers should kn... | 1,760,374,247.443689 | ||
https://hackaday.com/2018/08/21/arm-programming-with-bare-c/ | ARM Programming With Bare C | Al Williams | [
"ARM",
"Microcontrollers"
] | [
"arm",
"ARM Cortex-M3"
] | We confess. When starting a microcontroller project, we often start with the last one we did for that environment, copy it, and just make changes. And the first one? It — ahem — might have been found on the Internet. There’s a lot more than just your code that goes into this. If you want to do (and understand) absolut... | 44 | 13 | [
{
"comment_id": "4900721",
"author": "Nate B",
"timestamp": "2018-08-21T11:41:45",
"content": "“There’s a lot more than just your code that does into this.” — grammar?“Of course, if you don’t want veer away from the Arduino system, but don’t want to go all the way to bare metal…” — what?Sounds like ... | 1,760,374,247.751437 | ||
https://hackaday.com/2018/08/21/an-led-you-can-blow-out-with-no-added-sensor/ | An LED You Can Blow Out, With No Added Sensor | Donald Papp | [
"Arduino Hacks",
"LED Hacks"
] | [
"0402",
"adc",
"anemometer",
"blowing",
"candle",
"led",
"LED candle",
"oversampling"
] | We’d seen it done with buttons, switches, gestures, capacitive touch, and IR remote, but never like this. [electron_plumber] made an
LED that can be blown out like a candle
, and amazingly it requires no added sensors. The project uses an Arduino to demonstrate turning a tiny LED on and off in response to being blown o... | 43 | 16 | [
{
"comment_id": "4900252",
"author": "electrobob",
"timestamp": "2018-08-21T08:57:04",
"content": "hahah, this is a cool project!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4900317",
"author": "Mike Massen",
"timestamp": "2018-08-21T09:13... | 1,760,374,247.667528 | ||
https://hackaday.com/2018/08/20/cheap-fpga-board-roundup/ | Cheap FPGA Board Roundup | Al Williams | [
"FPGA"
] | [
"fpga",
"fpga board",
"fpga roundup"
] | There’s never been a better time to get into using FPGAs. Nearly all vendors have some level of free software and while boards haven’t gotten as cheap as ones with microcontrollers, the prices are way down. [Joel Williams] was frustrated when his board of choice became unavailable, so he decided to compile data on as m... | 24 | 13 | [
{
"comment_id": "4899850",
"author": "jando",
"timestamp": "2018-08-21T05:14:02",
"content": "I’ve been interested into getting into FPGAs for a while, but have never had a use case for them. Most of the embedded projects I work on can either be solved by microcontrollers for low-level stuff, or by ... | 1,760,374,247.815186 | ||
https://hackaday.com/2018/08/20/what-will-you-do-if-wwvb-goes-silent/ | What Will You Do If WWVB Goes Silent? | Tom Nardi | [
"clock hacks",
"Radio Hacks"
] | [
"nist",
"radio",
"time",
"wwvb"
] | Buried on page 25 of the 2019 budget proposal for the National Institute of Standards and Technology (NIST), under the heading “Fundamental Measurement, Quantum Science, and Measurement Dissemination”, there’s a short entry that has caused plenty of debate and even a fair deal of anger among those in the amateur radio ... | 136 | 43 | [
{
"comment_id": "4899584",
"author": "PirateLabs",
"timestamp": "2018-08-21T02:08:29",
"content": "Not going to happen. Just my opinion but, I guess time will tell…as it were.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4901425",
"author": "John ... | 1,760,374,247.992785 | ||
https://hackaday.com/2018/08/20/omen-alpha-a-diy-8085-based-computer/ | OMEN Alpha: A DIY 8085-Based Computer | Steven Dufresne | [
"computer hacks"
] | [
"8085",
"single board computer",
"tiny BASIC"
] | [Martin Malý] has put together
a sweet little 8085-based single board computer called OMEN
. He needed a simple one for educational purposes, and judging by the schematic we think he’s succeeded.
Now in its fourth iteration, it has a 32K EEPROM, 32K of memory, one serial and three parallel ports. In the ROM he’s put Ti... | 22 | 11 | [
{
"comment_id": "4898082",
"author": "Dan",
"timestamp": "2018-08-20T23:07:50",
"content": "FYI, the Tindie link is pointing to Hackerster.io.This looks like the Tindie page, but currently out of stock:https://www.tindie.com/products/parallaxis/omen-alpha/",
"parent_id": null,
"depth": 1,
... | 1,760,374,248.054481 | ||
https://hackaday.com/2018/08/20/simple-esp8266-weather-station-using-blynk/ | Simple ESP8266 Weather Station Using Blynk | Tom Nardi | [
"how-to",
"Microcontrollers"
] | [
"blynk",
"dht11",
"environmental monitoring",
"ESP8266"
] | Today’s hacker finds themself in a very interesting moment in time. The availability of powerful microcontrollers and standardized sensor modules is such that assembling the hardware for something like an Internet-connected environmental monitor is about as complex as building with LEGO. Hardware has become elementary ... | 11 | 4 | [
{
"comment_id": "4897973",
"author": "Perry",
"timestamp": "2018-08-20T22:42:58",
"content": "I hate to say it.But companies that take our info for us to control things are here today and gone tomorrow.And what are we left with more hardware that we can get from our friends and family.That they had ... | 1,760,374,248.107855 | ||
https://hackaday.com/2018/08/20/rewinding-live-radio/ | Rewinding Live Radio | Brian Benchoff | [
"digital audio hacks",
"Radio Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"fpga",
"radio",
"TiVo"
] | Even though it’s now a forgotten afterthought in the history of broadcasting technology, we often forget how innovative the TiVo was. All this set-top box did was connect a hard drive to a cable box, but the power was incredible: you could pause live TV. You could record shows. You could rewind TV. It was an incredible... | 35 | 11 | [
{
"comment_id": "4896631",
"author": "Ostracus",
"timestamp": "2018-08-20T18:42:42",
"content": "There’s also the program guide. Very useful.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4896851",
"author": "Alphatek",
"timestamp": "2018-08... | 1,760,374,248.286268 | ||
https://hackaday.com/2018/08/28/martian-dust-storm-may-spell-doom-for-rover/ | Martian Dust Storm May Spell Doom For Rover | Tom Nardi | [
"Current Events",
"Hackaday Columns",
"Original Art",
"Space"
] | [
"Curiosity",
"mars",
"nasa",
"Opportunity",
"rover",
"space"
] | Everyone knows that space is an incredibly inhospitable place, but the surface of Mars isn’t a whole lot better. It’s a dim, cold, and dry world, with a wisp of an atmosphere that provides less than 1% of Earth’s barometric pressure. As the planet’s core no longer provides it with a magnetosphere, cosmic rays and inten... | 65 | 13 | [
{
"comment_id": "4939638",
"author": "Gravis",
"timestamp": "2018-08-28T14:23:13",
"content": "I think the fact that it’s being doomed due to insufficient light reaching the solar panels is a form of success in it’s own right, not because it’s dying but because it proved it was worth putting RNGs in... | 1,760,374,248.21578 | ||
https://hackaday.com/2018/08/28/pipod-a-raspberry-pi-zero-portable-music-player/ | PiPod: A Raspberry Pi Zero Portable Music Player | Ben James | [
"3d Printer hacks",
"Musical Hacks",
"Raspberry Pi"
] | [
"mp3",
"music player",
"portable",
"raspberry pi",
"zero"
] | [Bram] wasn’t satisfied with the portable music playback devices that were currently available. He craved an offline music player that had a large storage capacity but found that this was only available in high-end, off-the-shelf options, which were far too expensive. [Bram] decided to
make his own, powered by a Raspbe... | 16 | 6 | [
{
"comment_id": "4937366",
"author": "Gigawipf",
"timestamp": "2018-08-28T11:35:17",
"content": "Neat, i like the idea. But is there really no amp behind the dac? According to the datasheet this is a line level dac that can drive down to 1k ohm loads… You would need to connect at least a standalone ... | 1,760,374,248.417307 | ||
https://hackaday.com/2018/08/28/wheres-the-cat-locating-your-moggy-without-eating-batteries/ | Where’s The Cat? Locating Your Moggy Without Eating Batteries | Jenny List | [
"gps hacks"
] | [
"cat",
"gps",
"gps tracker",
"low power"
] | Where the Hackaday Cat goes when she steps over the threshold into the wider world is a mystery, she reveals her whereabouts strictly on her terms and would we suspect be very cagey were we able to ask her about it. [Andy C] however has a need to know where his cat is spending her time, so
he’s made a GPS collar for a ... | 38 | 14 | [
{
"comment_id": "4935931",
"author": "John",
"timestamp": "2018-08-28T08:13:54",
"content": "Hmm, to track my cat with a 433 radio it would either need to grossly exceed the power regulation or have a Yagi fitted with some sort of point at home mechanism on it. :)I have seen him well over half a mil... | 1,760,374,248.359035 | ||
https://hackaday.com/2018/08/27/an-abstract-kind-of-clock-the-chinese-remainder-clock/ | An Abstract Kind Of Clock: The Chinese Remainder Clock | Tucker Ervin | [
"clock hacks"
] | [
"abstract",
"clock",
"math"
] | Hackaday likes clocks, a lot. Speaking personally, from my desk I can count at least eight clocks, of which seven are working. There’s normal quartz movement analog clocks, fun automatic wristwatches, run-of-the-mill digital clocks, a calculator watch, and a very special and very broken Darth Vader digital clock/radio ... | 15 | 7 | [
{
"comment_id": "4935351",
"author": "Thopter",
"timestamp": "2018-08-28T05:58:03",
"content": "Nothing you’ve written makes intuitive sense. Wow that’s a lot of technobable.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4939644",
"author": "TGT",
... | 1,760,374,248.470052 | ||
https://hackaday.com/2018/08/27/the-solution-to-oversized-dev-boards-a-literal-hack/ | The Solution To Oversized Dev Boards: A Literal Hack | Brian Benchoff | [
"hardware"
] | [
"breadboard",
"NodeMCU",
"solderless breadboard"
] | Oh, there was a time when you could prototype just about everything on a breadboard. The CPU in your computer came in a DIP package, and there were no BGA packages. to be found anywhere. In the forty years since then, chips have gotten smaller, packages have gotten more cramped, and you can barely hand-solder the coole... | 48 | 28 | [
{
"comment_id": "4934351",
"author": "Robert Mateja",
"timestamp": "2018-08-28T02:16:26",
"content": "Suggestion: One general RSS and second one, actually worth reading time? [Y/N]",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4934418",
"author": "FireBen... | 1,760,374,248.65452 | ||
https://hackaday.com/2018/08/27/making-a-vintage-1990s-sound-board-do-rapid-fire-silently/ | Making A Vintage 1990s Sound Board Do Rapid Fire Silently | Steven Dufresne | [
"digital audio hacks"
] | [
"scsi",
"SCSI Emulator",
"SCSI2SD",
"sd card",
"sound board"
] | Sometimes a mix of old and new is better than either the old or new alone. That’s what [Brad Carter] learned when he was given an old 1990s sound board with a noisy SCSI drive in it. In case you don’t know what a sound board is, think of a bunch of buttons laid out in front of you, each of which plays a different sound... | 19 | 7 | [
{
"comment_id": "4933923",
"author": "Jonathan Newman",
"timestamp": "2018-08-27T23:41:24",
"content": "That drive does not sound:A) badB) like it’s gonna failC) like it needs a defragIt’s a late 90’s SCSI drive they last FOREVER!!! I use to work at a place called WeirdStuff Warehouse (they just wen... | 1,760,374,249.485309 | ||
https://hackaday.com/2018/08/27/gpl-violations-cost-creality-a-us-distributor/ | GPL Violations Cost Creality A US Distributor | Tom Nardi | [
"3d Printer hacks",
"News",
"Slider"
] | [
"CR-10",
"Creality",
"gpl",
"license",
"Printed Solid"
] | One of the core tenets of free and open source software licenses is that you’re being provided source code for a project with the hope that you’ll “pay it forward” if and when you utilize that code. In fact some licenses, such as the GNU Public License (GPL),
require
that you keep the source code for subsequent spin-of... | 92 | 34 | [
{
"comment_id": "4932991",
"author": "Astro Jetson",
"timestamp": "2018-08-27T20:18:36",
"content": "I’ve had things printed by them and have bought supplies from their shop. They are 100% customer support and doing the right thing. Happy to be one of their supporters",
"parent_id": null,
... | 1,760,374,248.978657 | ||
https://hackaday.com/2018/08/28/a-cnc-woodworking-tool-that-does-the-hard-parts/ | A CNC Woodworking Tool That Does The Hard Parts | Kerry Scharfglass | [
"cnc hacks",
"Slider",
"Tool Hacks"
] | [
"cnc",
"fabrication",
"human computer interaction",
"joinery",
"joints",
"mill",
"router",
"spoilboard",
"woodworking"
] | Drawn along in the wake of the 3d printing/home shop revolution has been the accessibility of traditional subtractive CNC equipment, especially routers and mills. Speaking of, want a desktop mill? Try a Bantam Tools (née Othermachine) Desktop Milling Machine or a Carvey or a Carbide 3D Nomad. Tiny but many-axis general... | 26 | 13 | [
{
"comment_id": "4945359",
"author": "hansvi",
"timestamp": "2018-08-29T05:44:59",
"content": "Love the references to the mills, routers etc. I was just looking for such a thing (cutting front panels would be the main use).",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"com... | 1,760,374,248.845282 |
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