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https://hackaday.com/2019/11/17/arduino-does-multitouch/ | Arduino Does Multitouch | Al Williams | [
"Arduino Hacks"
] | [
"arduino",
"capacitive keyboard",
"capacitive sensing",
"processing"
] | A lot of consumer gadgets use touch sensors now. It is a cheap and reliable way to replace a variety of knobs and switches on everything from headphones to automobiles. However, creating a custom touch controller for a one-off project can be daunting. A recent ACM paper shows how just about
any capacitive sensor can wo... | 23 | 4 | [
{
"comment_id": "6195877",
"author": "Luke",
"timestamp": "2019-11-17T18:21:24",
"content": "Of course, they could have used the oscillator output of the AVR to provide the signal they were multiplexing into the matrix.Too bad the Arduino platform abstracts away neat features like that.",
"paren... | 1,760,373,685.828332 | ||
https://hackaday.com/2019/11/17/unix-version-0-running-on-a-pdp-7-in-2019/ | UNIX Version 0, Running On A PDP-7, In 2019 | Jenny List | [
"Retrocomputing"
] | [
"dmr",
"pdp-7",
"retrocomputing",
"unix"
] | WIth the 50th birthday of the UNIX operating system being in the news of late, there has been a bit of a spotlight shone upon its earliest origins. At the Living Computers museum in Seattle though they’ve gone well beyond a bit of historical inquiry though, because they’ve had
UNIX (or should we in this context say uni... | 34 | 12 | [
{
"comment_id": "6195862",
"author": "miss tramp",
"timestamp": "2019-11-17T17:00:51",
"content": "Fucking awsome. Thanx for this.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6329715",
"author": "Antron Argaiv",
"timestamp": "2021-03-09T12... | 1,760,373,685.769085 | ||
https://hackaday.com/2019/11/17/the-esp32-laid-bare/ | The ESP32, Laid Bare | Jenny List | [
"Microcontrollers",
"News",
"Security Hacks"
] | [
"ESP32",
"glitching",
"security"
] | Most readers will be familiar with the ESP32, Espressif’s dual-core processor with integrated WiFi and Bluetooth. Few of us though will have explored all of its features, including its built-in encryption facilities and secure booting capability. With these, a developer can protect and secure their code, and keep their... | 31 | 12 | [
{
"comment_id": "6195842",
"author": "Ostracus",
"timestamp": "2019-11-17T12:59:41",
"content": "“To achieve all this he used a glitching technique on the device’s power supply, inserting a carefully timed glitch in the rail to coincide with a particular instruction being executed.”Fine for hardware... | 1,760,373,686.028638 | ||
https://hackaday.com/2019/11/15/a-self-expanding-pwm-driver/ | A Self-Expanding PWM Driver | Bryan Cockfield | [
"Microcontrollers"
] | [
"driver board",
"ESP32",
"headers",
"inputs",
"led",
"microcontroller",
"multiplexing",
"outputs",
"shield",
"trick"
] | For smaller microcontrollers, having enough outputs for the job is sometimes a challenge. A common solution is to do some sort of multiplexing with the available outputs or perhaps something more advanced such as Charlieplexing, but another good option is to use a specialized driver board. What’s even better is if you ... | 8 | 4 | [
{
"comment_id": "6195557",
"author": "Clyde",
"timestamp": "2019-11-15T21:36:22",
"content": "Also seems like a good way to get more value from a PCB run. Lots of times I end up with five to ten boards when I’m really only ever going to use one or two. If the boards can all be stacked together to ex... | 1,760,373,685.657481 | ||
https://hackaday.com/2019/11/15/finally-your-air-drumming-has-an-outlet/ | Finally Your Air Drumming Has An Outlet | Gerrit Coetzee | [
"Arduino Hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"drum",
"kit",
"synth"
] | Two engineering students are
hard at work on this air drum
which they hope will help disabled people and people in nursing homes. Though, we think it just looks fun!
Each board is its own module consisting of the electronics and 3D printed cases. The modules each contain an
arduino
mini, IR sensor, and LEDs. They share... | 8 | 5 | [
{
"comment_id": "6195526",
"author": "Steven",
"timestamp": "2019-11-15T19:42:47",
"content": "“Coming soon to a steering wheel near you!”Prototypes in 5… 4… 3… 2… 1…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6195566",
"author": "Michael Crumb",
"... | 1,760,373,685.699915 | ||
https://hackaday.com/2019/11/15/dsp-spreadsheet-iq-diagrams/ | DSP Spreadsheet: IQ Diagrams | Al Williams | [
"Hackaday Columns",
"Skills",
"Slider"
] | [
"digital signal processing",
"dsp",
"I/Q",
"spreadsheet"
] | In previous installments of DSP Spreadsheet, we’ve looked at generating signals, mixing them, and filtering them. If you start trying to work with DSP, though, you’ll find a topic that always rears its head: IQ signals. It turns out, these aren’t as hard as they appear at first and, as usual, we’ll tackle them in a
spr... | 5 | 3 | [
{
"comment_id": "6195513",
"author": "some guy",
"timestamp": "2019-11-15T19:00:32",
"content": "Thank you for this interesting series. Could you do something on “correlation” for detecting signals please?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6195736... | 1,760,373,685.611571 | ||
https://hackaday.com/2019/11/15/needling-your-projects-3d-printed-pcb-probing-jig-uses-accupuncture-needles/ | Needling Your Projects: 3D Printed PCB Probing Jig Uses Accupuncture Needles | Danie Conradie | [
"Tool Hacks"
] | [
"3d printed",
"3d printing",
"circuit analysis",
"logic probe",
"multimeter probes"
] | Trying to probe a modern electronic circuit with tiny SMD components, without letting the magic smoke escape in the process, can be quite a challenge. Especially since we hackers have not yet developed the number of appendages required to hold 3 different probes in place while operating both an oscilloscope and a compu... | 18 | 11 | [
{
"comment_id": "6195472",
"author": "CRJEEA",
"timestamp": "2019-11-15T17:19:21",
"content": "I can imagine that comming in pretty handy. Better than the ususal crocodile clip helping hands. The only improvements I’d suggest would be a ball and socket wrist to come in at an angle and heat shrink on... | 1,760,373,685.554868 | ||
https://hackaday.com/2019/11/15/this-week-in-security-fuzzing-fixes-foul-fonts-tpm-timing-attacks-and-more/ | This Week In Security: Fuzzing Fixes, Foul Fonts, TPM Timing Attacks, And More! | Jonathan Bennett | [
"Hackaday Columns",
"News",
"Security Hacks",
"Slider"
] | [
"bitlocker",
"fuzzing",
"This Week in Security",
"Zombieload"
] | An issue was discovered in
libarchive
through Google’s ClusterFuzz project
.
Libarchive
is a compression and decompression library, widely used in utilities. The issue here is how the library recovers from a malformed archive. Hitting an invalid header causes the memory in use to be freed. The problem is that it’s poss... | 11 | 5 | [
{
"comment_id": "6195442",
"author": "BT",
"timestamp": "2019-11-15T15:42:30",
"content": "I always look forward to this column, in a non-twisted way of course, thanks!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195464",
"author": "Wolf",
... | 1,760,373,685.877754 | ||
https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/ | Credit Card Skimmers Evolve – Shimmers Are Here | Lewin Day | [
"Misc Hacks"
] | [
"card skimmer",
"credit card skimmer",
"shimmer",
"skimmer"
] | Credit cards are loaded with security features, but the game of cat and mouse goes on. Nefarious syndicates continue to develop technology to steal data in new and innovate ways. After SparkFun did a teardown on some illicit hardware, they were visited by local law enforcement,
who requested their help once more.
[Nick... | 91 | 22 | [
{
"comment_id": "6195363",
"author": "Jc",
"timestamp": "2019-11-15T12:24:55",
"content": "The market is already adjusting by using phones to pay for fuel and fast food..etc.This prevents the need to use the card readers and still being more convenient than a wallet full of bills.",
"parent_id":... | 1,760,373,686.21679 | ||
https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/ | A Radio For The Apocalypse | Jonathan Bennett | [
"Wireless Hacks"
] | [
"crystal",
"foxhole radio",
"radio"
] | There’s been a spate of apocalypse related articles over the last few weeks, but when I saw
an AM radio made from a hand-wound coil
and an oxidized British penny, I couldn’t help but be impressed. We’ve covered
foxhole radios
, stereotypical radios that are cobbled together from found parts during wartime.
This example... | 54 | 13 | [
{
"comment_id": "6195328",
"author": "RetepV",
"timestamp": "2019-11-15T10:10:39",
"content": "Ok. Great. So when the apocalypse comes, I have to find a piece of wood, thumb tacks, a penny, some wire, a piece of weakiron, and lots of more wire to make the antenna.Then I have to find lots more wire, ... | 1,760,373,685.966211 | ||
https://hackaday.com/2019/11/14/quick-and-dirty-digital-conversion-for-analog-slr/ | Quick And Dirty Digital Conversion For Analog SLR | Lewin Day | [
"digital cameras hacks"
] | [
"analog slr",
"ASLR",
"camera",
"SLR"
] | The unarguable benefits of digital photography has rendered the analog SLR obsolete for most purposes. This means that a wide selection of cameras and lenses are available on the second hand market for pennies on the dollar, making them ripe targets for hacking. [drtonis] decided to experiment with a quick and easy dig... | 37 | 14 | [
{
"comment_id": "6195281",
"author": "macsimski",
"timestamp": "2019-11-15T06:24:02",
"content": "Step one: realize that with that chip everything will be extremely tele as now you are only using a tiny portion of the original frame.Step two: think “oh well”Step three: stuff camera in a raven puppet... | 1,760,373,686.293584 | ||
https://hackaday.com/2019/11/14/audio-processing-in-rust/ | Audio Processing In Rust | Al Williams | [
"Software Development"
] | [
"audio",
"noise gate",
"rust",
"wave"
] | [Michael] volunteers with emergency services, and sometimes has to monitor radio traffic. Sometimes there’s a lot to review, and to make it easier he wrote
a noise gate
— think of it as a squelch — to break apart recorded audio into parts. Rust has been gaining popularity for writing low level software, and that’s the ... | 4 | 3 | [
{
"comment_id": "6195261",
"author": "futaris",
"timestamp": "2019-11-15T03:28:59",
"content": "We see Rush more and more …",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6195311",
"author": "krater",
"timestamp": "2019-11-15T07:56:08",
"content": ... | 1,760,373,686.477592 | ||
https://hackaday.com/2019/11/14/giant-analog-co2-meter-sweeps-away-doubt/ | Giant Analog CO2 Meter Sweeps Away Doubt | Kristina Panos | [
"Lifehacks",
"Misc Hacks"
] | [
"Adafruit Feather",
"analog meter",
"co2",
"eink",
"nautilus",
"servo"
] | Most of us are aware that trees turn CO₂ into oxygen, but we’d venture to guess that many people’s knowledge of this gas ends there. Is it feast or famine out there for the trees? Who can say? We admire [rabbitcreek]’s commitment to citizen science because he’s so focused on making it easy for people to understand thei... | 11 | 5 | [
{
"comment_id": "6195235",
"author": "sneakypoo",
"timestamp": "2019-11-15T00:28:35",
"content": "Today I learned that having a physical dial makes a product “analog”.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195264",
"author": "Marty",
... | 1,760,373,686.439039 | ||
https://hackaday.com/2019/11/14/5-kilowatts-in-a-3d-printed-jet-boat/ | 5 Kilowatts In A 3D Printed Jet Boat | Lewin Day | [
"3d Printer hacks"
] | [
"3d printer",
"jet boat",
"motor",
"turbine"
] | Radio control projects used to be made of materials such as metal or wood, and involve lots of hand crafted parts. That’s still one way to go about things, but 3D printing has become a popular tool in recent years. [RCLifeOn] has been working on
a 3D printed jet boat
, which recently got a serious power upgrade.
The bo... | 10 | 5 | [
{
"comment_id": "6195214",
"author": "Harvie.CZ",
"timestamp": "2019-11-14T22:53:17",
"content": "I’ll just leave the jetsurf video here:https://www.youtube.com/watch?v=eTAa9BDGYNwbut i might prefer the foil board design:https://www.youtube.com/watch?v=3ah6FQP5ozk",
"parent_id": null,
"depth... | 1,760,373,686.588532 | ||
https://hackaday.com/2019/11/14/detecting-water-before-its-too-late/ | Detecting Water Before It’s Too Late | Gerrit Coetzee | [
"home hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"attiny",
"detection",
"flexible PCB",
"water"
] | [mcu_nerd] is like any engineer, which is why his problem of an occasionally leaky water heater sure looks like a
research project with no end in sight
. Sure there’s probably a commercial product out there that can be had for half the cost and a few clicks of the mouse, but what’s the point in actually solving the pro... | 25 | 10 | [
{
"comment_id": "6195171",
"author": "Ren",
"timestamp": "2019-11-14T20:16:46",
"content": "What if…the leak detector circuit is powered by a water activated battery?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195189",
"author": "JD",
"t... | 1,760,373,686.541432 | ||
https://hackaday.com/2019/11/14/best-buys-iot-goes-dark-leaving-some-smart-products-dumbfounded/ | Best Buy’s IoT Goes Dark, Leaving Some “Smart” Products Dumbfounded | Al Williams | [
"Hackaday Columns",
"News",
"Rants",
"Slider"
] | [
"best buy",
"cloud",
"insignia",
"IoT"
] | Bad news if you bought several Insignia-branded smart devices from Best Buy. The company has decided to shut down the back end systems that make them work — or at least work as a smart device. On the chopping block are smart outlets, switches, a security camera, and an upright freezer. If you bought, say, the freezer, ... | 95 | 32 | [
{
"comment_id": "6195121",
"author": "HaD Reader",
"timestamp": "2019-11-14T18:26:26",
"content": "That’s what the open source community needs to create, a suite of open source cloud utilities that one can host themselves. Working on such a project is one of my long term goals for sure.",
"pare... | 1,760,373,686.725176 | ||
https://hackaday.com/2019/11/14/ethernet-over-dc-power/ | Ethernet, Over DC Power | Jenny List | [
"Network Hacks"
] | [
"dc network",
"network",
"powerline network"
] | We’re used to extending our network connections and being no longer constrained in our use of Ethernet by proximity to a switch or hub. Our houses routinely contain wireless networks, and of course powerline-Ethernet units passing data over our mains wiring. [Peter Franck] had a similar problem but without the mains po... | 73 | 25 | [
{
"comment_id": "6195091",
"author": "darius",
"timestamp": "2019-11-14T17:05:00",
"content": "excellentlet me buy one, fully-assembled #EoDC unit",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6195098",
"author": "Antron Argaiv",
"timestamp": "2019-11... | 1,760,373,686.984226 | ||
https://hackaday.com/2019/11/14/jubilee-a-toolchanging-homage-to-3d-printer-hackers-everywhere/ | Jubilee: A Toolchanging Homage To 3D Printer Hackers Everywhere | Sonya Vasquez | [
"3d Printer hacks",
"cnc hacks",
"Curated",
"Engineering",
"Featured",
"Slider"
] | [
"3d printer",
"fabricatability",
"fabrication",
"jubilee",
"multimaterial",
"toolchanger",
"toolchanging"
] | I admit that I’m late to the 3D printing game. While I just picked up my first printer in 2018, the rest of us have been oozing out beautiful prints for over a decade. And in that time we’ve seen many people reimagine the hardware for mischief besides just printing plastic. That decade of hacks got me thinking: what if... | 36 | 12 | [
{
"comment_id": "6195069",
"author": "theodonkulus",
"timestamp": "2019-11-14T15:58:04",
"content": "Great write up and thank you for such an awesome contribution. Would love to get this working on my many 3d printers at home :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,373,686.807131 | ||
https://hackaday.com/2019/11/14/aging-alcohol-in-30-minutes/ | Aging Alcohol In 30 Minutes | Lewin Day | [
"Beer Hacks",
"Misc Hacks"
] | [
"alcohol",
"spirits",
"ultrasonic",
"ultrasound"
] | Many alcoholic beverages are aged in barrels for long periods of time. The aim is to impart flavors from the wood of the barrel into the liquid, and allow a whole host of chemical reactions to happen, changing the character of the taste. However, this takes time, and time is money. There’s potentially a faster way, how... | 38 | 22 | [
{
"comment_id": "6195008",
"author": "Liam",
"timestamp": "2019-11-14T12:25:18",
"content": "I remember seeing the ultrasonic method on Moonshiners (Yes I know most of it is faked for TV) and they had made a system that would age it over night.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,373,686.877991 | ||
https://hackaday.com/2019/11/14/upgrade-board-turns-typewriter-into-a-teletype/ | Upgrade Board Turns Typewriter Into A Teletype | Tom Nardi | [
"hardware",
"Peripherals Hacks"
] | [
"conversion",
"ibm",
"IBM 1620",
"serial",
"teletype",
"typewriter",
"usb",
"Wheelwriter"
] | It may come as little surprise to find that Hackaday does not often play host to typewriter projects. While these iconic machines have their own particular charm, they generally don’t allow for much in the way of hardware modification. But then the IBM Wheelwriter 1000 isn’t exactly a
traditional
typewriter, which made... | 25 | 15 | [
{
"comment_id": "6194974",
"author": "wrzwicky",
"timestamp": "2019-11-14T09:45:05",
"content": "Needs wifi and a battery. It’s not a modern watchmajigger without wifi and a battery.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194999",
"author": "gir.s... | 1,760,373,687.093234 | ||
https://hackaday.com/2019/11/13/two-vintage-calculators-in-one/ | Two Vintage Calculators In One | Bryan Cockfield | [
"FPGA"
] | [
"calculator",
"emulation",
"fpga",
"microcode",
"microcontroller",
"microprogramming",
"programming",
"sinclair",
"ti"
] | The FPGA revolution that occurred within the past few decades was a boon to many people interested in “antique” electronics. The devices “wire together” logic elements as needed rather than emulating chips completely in a software layer, which makes them uniquely suited for replicating chips that are rare, no longer in... | 10 | 5 | [
{
"comment_id": "6194958",
"author": "Mike Massen inPerth, Western Australia",
"timestamp": "2019-11-14T08:09:51",
"content": "Nice idea and good exercise revitalising old classic stuff, was looking for doing this re the HP 41 series C, CV, CXSold a few during my engineering days latish 1970’s to ge... | 1,760,373,687.02815 | ||
https://hackaday.com/2019/11/13/peltier-device-experiments/ | Peltier Device Experiments | Al Williams | [
"Science"
] | [
"Heat pump",
"peltier",
"seebeck",
"solid state heat pump",
"thermocouple"
] | Once an exotic component, solid state heat pumps or Peltier devices are now pretty mainstream. The idea is simple: put electricity through a Peltier device and one side gets hot while the other side gets cold. [DroneBot] recently posted a video
showing how these cool — really cool — devices work
. You can see the video... | 28 | 11 | [
{
"comment_id": "6194901",
"author": "Chris Arena",
"timestamp": "2019-11-14T03:26:11",
"content": "if you cool the side you’re not heating with a heat sink does the output of the device go up?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195310",
... | 1,760,373,687.44284 | ||
https://hackaday.com/2019/11/13/this-arduino-keeps-its-eyes-on-you/ | This Arduino Keeps Its Eyes On You | Al Williams | [
"3d Printer hacks",
"Arduino Hacks",
"Robots Hacks"
] | [
"3d printing",
"animatronic",
"arduino",
"eyes",
"servo",
"servos"
] | [Will] wanted to build some animatronic eyes that didn’t require high-precision 3D printing. He wound up with
a forgiving design
that uses an Arduino and six servo motors. You can see the video of the eyes moving around in the video below.
The bill of materials is pretty simple and features an Arduino, a driver board, ... | 5 | 5 | [
{
"comment_id": "6194888",
"author": "Ostracus",
"timestamp": "2019-11-14T01:29:48",
"content": "Reminds me a little bit of Disney’s Animatronics.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194933",
"author": "nobody",
"timestamp": "2019-11-14T05:... | 1,760,373,687.23843 | ||
https://hackaday.com/2019/11/13/break-the-caps-lock-habit-with-this-annoying-buzzer/ | Break The Caps Lock Habit With This Annoying Buzzer | Tom Nardi | [
"Microcontrollers",
"Peripherals Hacks"
] | [
"buzzer",
"caps lock",
"PIC16f1459",
"reminder"
] | The much-maligned Caps Lock key has been causing problems for decades, and its continued existence is controversial enough that Google decided to drop it all together in their Chromebooks. Until the rest of the industry decides to follow their lead, they’ll likely be no shortage of awkward emails or overly aggressive c... | 57 | 29 | [
{
"comment_id": "6194800",
"author": "Oldy but Goldy",
"timestamp": "2019-11-13T21:04:41",
"content": "Could have made it with a 555",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6194896",
"author": "tcb999",
"timestamp": "2019-11-14T02:32:4... | 1,760,373,687.376356 | ||
https://hackaday.com/2019/11/12/printed-arduino-turntable-takes-objects-for-a-spin/ | Printed Arduino Turntable Takes Objects For A Spin | Kristina Panos | [
"Arduino Hacks",
"digital cameras hacks"
] | [
"16x2 LCD",
"Arduino Uno",
"bluetooth",
"Photogrammetry",
"remote shutter"
] | Have you built a 3D scanner yet? There’s more than one way to model those curves and planes, but the easiest may be photogrammetry — that’s the one where you take a bunch of pictures and stitch them into a 3D model. If you build
a scanner like [Brian Brocken]’s that does almost everything automatically
, you might cons... | 5 | 2 | [
{
"comment_id": "6194523",
"author": "BD594",
"timestamp": "2019-11-12T21:27:29",
"content": "I was looking to build one ages ago but my procrastination has finally brought me here. Sometimes good things come to people who wait however I should not be rewarded for my laziness. All I want to say is... | 1,760,373,687.281669 | ||
https://hackaday.com/2019/11/12/risc-v-why-the-isa-battles-arent-over-yet/ | RISC-V: Why The ISA Battles Aren’t Over Yet | Maya Posch | [
"ARM",
"Engineering",
"Featured",
"Microcontrollers",
"Slider"
] | [
"ibm power",
"instruction set architecture",
"isa",
"mips",
"OpenRISC",
"power",
"RISC-V",
"sparc"
] | A computer processor uses a so-called Instruction Set Architecture to talk with the world outside of its own circuitry. This ISA consists of a number of instructions, which essentially define the functionality of that processor, which explains why so many ISAs still exist today. It’s hard to find that one ISA that work... | 39 | 16 | [
{
"comment_id": "6194390",
"author": "Mike Massen @ Perth, Western Australia",
"timestamp": "2019-11-12T15:16:56",
"content": "Thankyou for post, interesting review :-)Wonder why super wide words with multiple interleaving with great potential to mix simd & mimd together seemed to have stalled re in... | 1,760,373,687.524318 | ||
https://hackaday.com/2019/11/12/the-past-present-and-uncertain-future-of-lulzbot/ | The Past, Present, And Uncertain Future Of LulzBot | Tom Nardi | [
"3d Printer hacks",
"News"
] | [
"3D printers",
"american manufacturing",
"closing",
"layoff",
"lulzbot",
"nasa",
"US Government"
] | Considering that it’s only existed for around a decade, the commercial desktop 3D printing market has seen an exceptional amount of turnover. But then, who could resist investing in an industry that just might change the world? It certainly didn’t hurt that the MakerBot Cupcake, arguably the first “mass market” desktop... | 45 | 15 | [
{
"comment_id": "6194350",
"author": "Carl",
"timestamp": "2019-11-12T12:43:23",
"content": "Lulz mini was my first real printer. Still works to this day. Aleph was/is a good company and very helpful. But they made some significant tactical mistakes. When the vast majority of the market shifted to 1... | 1,760,373,687.608639 | ||
https://hackaday.com/2019/11/12/tearing-down-a-ps3-blu-ray-drive/ | Tearing Down A PS3 Blu Ray Drive | Lewin Day | [
"Misc Hacks"
] | [
"blu-ray",
"bluray",
"optical drive"
] | Optical drives are somewhat passe in 2019, with most laptops and desktops no longer shipping with the hardware installed. The power of the cloud has begun to eliminate the need for physical media, but that doesn’t mean the technology is any less marvellous. [Leslie Wright] and [Samuel Goldwater] took a deep dive into w... | 16 | 6 | [
{
"comment_id": "6194334",
"author": "krazer",
"timestamp": "2019-11-12T09:44:51",
"content": "This post takes me back to when I got my first ps3 optical sled, and combined it with a dvd burner diode and terrible green laser pointer to make a full RGB laser projector (well, assuming you projected on... | 1,760,373,687.662538 | ||
https://hackaday.com/2019/11/11/water-flow-meter-knows-tank-level/ | Water Flow Meter Knows Tank Level | Al Williams | [
"Raspberry Pi",
"Video Hacks"
] | [
"flow meter",
"flowmeter",
"tank",
"YF-S201"
] | There’s almost always more than one way to get any particular job done. Suppose for instance you have a tank you fill up from a well, and you’d like to know when the time is right to refill the tank. The obvious answer is to measure the level of the tank, and there are plenty of ways to do that. However, [Liam Hanninen... | 27 | 8 | [
{
"comment_id": "6194311",
"author": "12AU76L6GC",
"timestamp": "2019-11-12T07:00:37",
"content": "The way they measure the water in a municipal water tower is by measuring the water pressure with an analog pressure meter connected to the pipe that runs to the tank. The meter has a mechanical switch... | 1,760,373,687.72652 | ||
https://hackaday.com/2019/11/11/diode-basics-by-w2aew/ | Diode Basics By [W2AEW] | Al Williams | [
"Parts"
] | [
"curve tracer",
"diode",
"w2aew"
] | We didn’t think we needed
a basic guide to diodes
until we saw it was from [W2AEW], and then we knew we’d pick up some new things. Entitled “Diodes from Ideal to Real” the 18-minute video doesn’t disappoint with a mix of
notes
and time with a curve tracer to learn all about these devices.
As is typical for a [W2AEW] vi... | 8 | 1 | [
{
"comment_id": "6194289",
"author": "jawnhenry",
"timestamp": "2019-11-12T05:59:48",
"content": "“dark” is not a physical entity.Photons are the mediators (carriers) of electromagnetic radiation (including light). Precisely what ‘carries’ “dark?”There is nothing which can “absorb dark” (nor anythin... | 1,760,373,687.770211 | ||
https://hackaday.com/2019/11/11/fitsocket-is-a-portal-to-better-prostheses/ | FitSocket Is A Portal To Better Prostheses | Kristina Panos | [
"Robots Hacks"
] | [
"actuators",
"biomechatronics",
"prostheses",
"prosthetic"
] | Traditionally, sockets for prostheses are created by making a plaster cast of the limb being fitted, and are then sculpted in carbon fiber. It’s an expensive and time-consuming process, and what is supposed to be a customized socket often turns out to be an uncomfortable disappointment. Though prosthetists design these... | 17 | 7 | [
{
"comment_id": "6194268",
"author": "Hirudinea",
"timestamp": "2019-11-12T00:16:42",
"content": "How much does this thing cost, plus the cost for training staff? I can see this being used in the third world to make cheaper prosthetics, measure the patient, send off the measurements to China and Ali... | 1,760,373,687.831211 | ||
https://hackaday.com/2019/11/12/azobenzene-stores-solar-energy/ | Azobenzene Stores Solar Energy | Al Williams | [
"News",
"Science"
] | [
"Chemistry",
"fuel",
"solar"
] | Probably the most efficient way to convert solar energy into electricity is the old fashioned way, heating water into steam and turning a turbine. This remains a messy affair though and you don’t really want a steam boiler on your roof, so solar cells are popular. However, there’s some new research showing how
a molecu... | 30 | 9 | [
{
"comment_id": "6194565",
"author": "Jack",
"timestamp": "2019-11-13T03:26:35",
"content": "“The highest efficiency thatcan be expected for a 5104M solution is 0.02%, and for a 2104M solution is 0.01%”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6194566"... | 1,760,373,688.03321 | ||
https://hackaday.com/2019/11/12/core-xy-explained/ | Core XY Explained | Al Williams | [
"3d Printer hacks"
] | [
"3d printing",
"cnc",
"core xy",
"CoreXY",
"plotting"
] | If you are building a CNC machine, a 3D printer, or even a plotter, you have a need for motion in both the X and Y directions. There are many ways to accomplish this, for example, some printers move the tool in the X direction and the bed in the Y direction while others move the entire X carriage in the Y direction and... | 28 | 10 | [
{
"comment_id": "6194540",
"author": "Saabman",
"timestamp": "2019-11-13T00:09:27",
"content": "I did think initially that was how an “etch a sketch” mechanism worked as the two “motors” remained stationary but that’s not the case as one control moves left/right the moves up/down. I need to pull o... | 1,760,373,687.970789 | ||
https://hackaday.com/2019/11/12/improving-exposure-on-masked-sla-printer/ | Improving Exposure On A Masked SLA Printer | Tom Nardi | [
"3d Printer hacks",
"LED Hacks"
] | [
"compensation",
"lcd",
"masked SLA",
"opencv",
"SLA printer",
"uv"
] | It’s taken longer than some might have thought, but we’re finally at the point where you can pick up an SLA 3D printer for a few hundred bucks. These machines, which use light to cure a resin, are capable of far higher resolution than their more common FDM counterparts, though they do bring along their own unique issue... | 6 | 4 | [
{
"comment_id": "6194563",
"author": "NFM",
"timestamp": "2019-11-13T03:10:52",
"content": "I wonder if it would be possible to use a similar process to print a grayscale shadowmask on a transparency sheet with a regular inkjet printer to do a similar job?Maybe use the same UV reactive stuff as abov... | 1,760,373,687.888714 | ||
https://hackaday.com/2019/11/12/haptic-games-bring-fun-to-the-visually-impaired/ | Haptic Games Bring Fun To The Visually Impaired | Kristina Panos | [
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"haptic feedback"
] | No matter what your parents might say, games are good for us. They teach us to manage resources and give us dopamine rewards just like eating and mating do. Even if you’re no good at games in general, they are still a fun distraction from life.
There are so many games out there that could be enjoyed by the visually imp... | 2 | 2 | [
{
"comment_id": "6194505",
"author": "Moryc",
"timestamp": "2019-11-12T20:43:30",
"content": "Finally, a HaD project for visually impaired that actually makes sense!Also for a games that use some form of scanner to return information on scanned piece maybe a QR code tag or something similar and piec... | 1,760,373,688.126977 | ||
https://hackaday.com/2019/11/12/hf-propagation-and-earthquakes/ | HF Propagation And Earthquakes | Dan Maloney | [
"Interest",
"News",
"Original Art",
"Science"
] | [
"amateur radio",
"citizen science",
"earthquake",
"prediction"
] | For all the successes of modern weather forecasting, where hurricanes, blizzards, and even notoriously unpredictable tornadoes are routinely detected before they strike, reliably predicting one aspect of nature’s fury has eluded us: earthquakes. The development of plate tectonic theory in the middle of the 20th century... | 25 | 13 | [
{
"comment_id": "6194454",
"author": "joe",
"timestamp": "2019-11-12T18:26:01",
"content": "This new learning amazes me! Explain to me again, how sheeps’ bladders may be employed to prevent earthquakes.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194463",
... | 1,760,373,688.407209 | ||
https://hackaday.com/2019/11/12/superconference-interview-sam-zeloof/ | Superconference Interview: Sam Zeloof | Lewin Day | [
"cons",
"Interviews"
] | [
"2019 Hackaday Superconference",
"interview",
"livestream",
"Supercon"
] | In less than four days, the fifth
Hackaday Superconference
kicks off in Pasadena, California, and it’s shaping up to be a hoot. With a cavalcade of exciting workshops and talks on offer, hackers and makers are pouring in from across the globe for this celebration of software, firmware, and hardware.
Of course, the real... | 2 | 2 | [
{
"comment_id": "6194441",
"author": "RunnerPack",
"timestamp": "2019-11-12T17:58:48",
"content": "(Psst: the 15th is Friday)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194464",
"author": "Ren",
"timestamp": "2019-11-12T19:05:06",
"content": "... | 1,760,373,688.164918 | ||
https://hackaday.com/2019/11/12/cardboard-longboard-uses-quarter-isogrid-structure/ | Cardboard Longboard Uses Quarter-Isogrid Structure | Lewin Day | [
"Transportation Hacks"
] | [
"laser cutter",
"longboard"
] | Skateboards are most typically crafted by hand, carved out of wood layered by care. However, many makers have sought to explore alternative techniques. [Technovation] decided to combine alternative materials and digital fabrication techniques
to produce this attractive cardboard longboard.
The structure of the board wa... | 19 | 9 | [
{
"comment_id": "6194434",
"author": "Thrasher",
"timestamp": "2019-11-12T17:28:51",
"content": "First, this isn’t a “longboard”.Second, “Skateboards are most typically crafted by hand, carved out of wood layered by care.” What planet do you live on bro?",
"parent_id": null,
"depth": 1,
... | 1,760,373,688.298198 | ||
https://hackaday.com/2019/11/13/an-open-source-toolbox-for-studying-the-earth/ | An Open Source Toolbox For Studying The Earth | Tom Nardi | [
"Science",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"backplane",
"custom enclosure",
"environmental monitoring",
"modular"
] | Fully understanding the planet’s complex ecosystem takes data, and lots of it. Unfortunately, the ability to collect detailed environmental data on a large scale with any sort of accuracy has traditionally been something that only the government or well-funded institutions have been capable of. Building and deploying t... | 1 | 1 | [
{
"comment_id": "6195060",
"author": "Ren",
"timestamp": "2019-11-14T15:21:51",
"content": "This article reminded me of the PAM stations (Portable Atmospheric Measurement?) that the National Center for Atmospheric Research would deploy for weather research projects. Basically a data collection devic... | 1,760,373,688.343009 | ||
https://hackaday.com/2019/11/13/ask-hackaday-is-anyone-sad-phone-vr-is-dead/ | Ask Hackaday: Is Anyone Sad Phone VR Is Dead? | Donald Papp | [
"Ask Hackaday",
"Hackaday Columns",
"Original Art",
"Slider",
"Virtual Reality"
] | [
"daydream",
"gear vr",
"google cardboard",
"headset",
"Quest",
"Rift",
"smartphone",
"virtual reality",
"Vive",
"vr"
] | It’s official: smartphone-based VR is dead. The two big players in this space were
Samsung Gear VR
(powered by Oculus, which is owned by Facebook) and
Google Daydream
. Both have called it quits, with Google omitting support from their newer phones and Oculus confirming that the Gear VR has reached the end of its road.... | 92 | 34 | [
{
"comment_id": "6194745",
"author": "deshipu",
"timestamp": "2019-11-13T18:11:53",
"content": "The whole VR thing is a dead end. It was tried so many times already, and failed every time, and that will keep repeating. It’s like with 3D movies — sure, it was cool for a moment when it was new, but no... | 1,760,373,688.542781 | ||
https://hackaday.com/2019/11/13/bicycle-transforms-mid-ride/ | Bicycle Transforms Mid-Ride | Bryan Cockfield | [
"Transportation Hacks"
] | [
"bicycle",
"bike",
"gas cylinder",
"low rider",
"tall bike",
"transforming",
"transportation",
"welding"
] | For those of us who were children in the late 80s and early 90s, we may have dreamed of one day owning a gigantic tractor trailer that could transform into a colossal fighting robot. Or of simply having a toy that could approximate this change from one form into another. As adults, though, we have come to realize that ... | 9 | 5 | [
{
"comment_id": "6194735",
"author": "Greg A",
"timestamp": "2019-11-13T17:48:06",
"content": "A pretty solid solution to the problem that tall funny bikes are hard to mount!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6194844",
"author": "b0b",
... | 1,760,373,688.587212 | ||
https://hackaday.com/2019/11/13/lessons-in-li-ion-safety/ | Lessons In Li-Ion Safety | Bob Baddeley | [
"chemistry hacks",
"Engineering",
"Featured",
"Interest",
"Slider"
] | [
"battery",
"battery charging",
"battery monitor",
"battery pack",
"Chemistry",
"fire safety",
"lithium",
"lithium battery",
"lithium cell",
"Lithium-ion battery",
"safety",
"workshop safety"
] | If you came here from an internet search because your battery just blew up and you don’t know how to put out the fire, then use a regular fire extinguisher if it’s plugged in to an outlet, or a fire extinguisher or water if it is not plugged in. Get out if there is a lot of smoke. For everyone else, keep reading.
I rec... | 85 | 20 | [
{
"comment_id": "6194691",
"author": "Diego Floor",
"timestamp": "2019-11-13T15:09:39",
"content": "That is a clever and very thoughtful first paragraph. Just wanted to say that.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194692",
"author": "MikeR",
... | 1,760,373,688.710418 | ||
https://hackaday.com/2019/11/13/tindie-seller-reviews-a-knock-off-of-his-own-product/ | Tindie Seller Reviews A Knock-Off Of His Own Product | Dan Maloney | [
"Misc Hacks",
"Reviews"
] | [
"copyright",
"D1 Mini",
"design",
"ESP8266",
"infringement",
"intellectual property",
"knock-off",
"led",
"matric"
] | If imitation is the sincerest form of flattery, online creators are being sincerely flattered at an alarming rate these days. We Hackaday scribes see it all the time, as straight copy-pastes of our articles turn up on other websites under different bylines. It’s annoying, but given prevailing attitudes toward intellect... | 66 | 29 | [
{
"comment_id": "6194649",
"author": "Alphatek",
"timestamp": "2019-11-13T12:22:15",
"content": "Excellent comparison – very interesting.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194650",
"author": "Ken N",
"timestamp": "2019-11-13T12:25:19",
... | 1,760,373,688.814353 | ||
https://hackaday.com/2019/11/13/adding-sensors-to-improve-your-curling-game-turns-out-its-really-hard/ | Adding Sensors To Improve Your Curling Game? Turns Out It’s Really Hard | Donald Papp | [
"Games",
"hardware"
] | [
"accelerometer",
"curling",
"failure",
"IMU",
"led strip",
"Load sensor",
"sensors",
"Teensy"
] | Sometimes, a project turns out to be harder than expected at every turn and the plug gets pulled. That was the case with [Chris Fenton]’s efforts to gain insight into his curling game by adding sensors to monitor the movement of curling stones as well as the broom action. Luckily,
[Chris] documented his efforts
and pro... | 16 | 9 | [
{
"comment_id": "6194615",
"author": "Danie Conradie",
"timestamp": "2019-11-13T09:17:55",
"content": "This is a gem: “and it turns out that anyone, presented with a light-up broom that measures their strength, will instantly apply as much force as they can to test it”",
"parent_id": null,
"... | 1,760,373,688.869884 | ||
https://hackaday.com/2019/11/12/simulate-city-blocks-with-circuit-blocks-in-a-lego-box/ | Simulate City Blocks With Circuit Blocks In A LEGO Box | Kristina Panos | [
"Arduino Hacks",
"Misc Hacks"
] | [
"arduino",
"city simulator",
"lego",
"simulator"
] | Have you ever looked around your city’s layout and thought you could do better? Maybe you’ve always wanted to see how she’d run on nuclear or wind power, or just play around with civic amenities and see how your choices affect the citizens.
[Robbe Nagel] made
this physical-digital simulator
for a Creative Programming c... | 4 | 3 | [
{
"comment_id": "6194648",
"author": "Shannon",
"timestamp": "2019-11-13T12:07:16",
"content": "Make it work with SimCity and we really have something.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6194682",
"author": "Ren",
"timestamp": "20... | 1,760,373,688.9192 | ||
https://hackaday.com/2019/11/11/a-mobile-terminal-for-the-end-of-the-world/ | A Mobile Terminal For The End Of The World | Tom Nardi | [
"Cyberdecks",
"Network Hacks",
"Raspberry Pi"
] | [
"front panel",
"gpio",
"mobile",
"network",
"off grid",
"pelican case",
"portable",
"Recovery Kit",
"rugged",
"rugged raspberry pi"
] | If civilization goes sideways and you need to survive, what are the bare essentials that should go in your bunker? Food and fresh water, sure. Maybe something to barter with in case things go full on
The Postman
. That’s all sensible enough, but how’s that stuff going to help you get a LAN party going? If you’re anythi... | 31 | 17 | [
{
"comment_id": "6194249",
"author": "Old F",
"timestamp": "2019-11-11T21:35:12",
"content": "We already have this technology: the ZipLoc bag.This is reminiscent of what we used to call “Red Seats” at EDS. Of course they were hardened against TEMPEST too.",
"parent_id": null,
"depth": 1,
... | 1,760,373,689.016274 | ||
https://hackaday.com/2019/11/11/the-ifs-make-learning-to-code-childs-play/ | The Ifs Make Learning To Code Child’s Play | Dan Maloney | [
"The Hackaday Prize",
"Toy Hacks"
] | [
"2019 Hackaday Prize",
"coding",
"educational",
"IoT",
"nrf",
"stem",
"toy"
] | Anyone who has done the slightest bit of programming knows about the “Hello, World!” program. It’s the archetypal program that one enters to get a feel for a new language or a new architecture; if you can get a machine to print “Hello, World!” back to you, the rest is just details. But what about teaching kids to progr... | 12 | 3 | [
{
"comment_id": "6194241",
"author": "Brian",
"timestamp": "2019-11-11T20:42:29",
"content": "Yet another ‘feed the bottom line’ educational gimmick.I am thinking that educators believe that reading and mathematical skills aid and abet each other; yet they provide the ever-so-elusive pathways to bot... | 1,760,373,689.067658 | ||
https://hackaday.com/2019/11/11/review-ear-wax-cleaning-cameras-as-cheap-microscopes-we-take-a-closer-look/ | Review: Ear Wax Cleaning Cameras As Cheap Microscopes, We Take A Closer Look | Jenny List | [
"digital cameras hacks",
"Hackaday Columns",
"Reviews",
"Slider",
"Tool Hacks"
] | [
"ear camera",
"inspection camera",
"microscope"
] | Those of us who trawl the world of cheap imported goods will most often stay in our own comfortable zones as we search for new items to amaze and entertain us. We’ll have listings of electronic goods or tools, and so perhaps miss out on the scores of other wonders that can be ours for only a few dollars and a week or t... | 50 | 17 | [
{
"comment_id": "6194200",
"author": "Eric R Mockler",
"timestamp": "2019-11-11T18:13:43",
"content": "I’ve used these to solder smd chips by hand.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194201",
"author": "Mustache Kirk",
"timestamp": "2019-1... | 1,760,373,689.305392 | ||
https://hackaday.com/2019/11/11/new-part-day-alexa-connect-kit-now-available-for-sale/ | New Part Day: Alexa Connect Kit Now Available For Sale | Maya Posch | [
"Arduino Hacks",
"News"
] | [
"802.15.4",
"Alexa Connect Kit",
"Amazon Alexa",
"Apple Homekit",
"home automation",
"Thread protocol",
"zigbee"
] | People who were subscribed to updates on the Alexa Connect Kit (ACK) would recently have received an email informing that
this kit is now available for sale
. Last time
we covered the ACK
was back in September of 2018, the ‘release’ moniker meant ‘preview’ and there wasn’t any hardware one could actually purchase.
Over... | 8 | 5 | [
{
"comment_id": "6194181",
"author": "Hot Dog",
"timestamp": "2019-11-11T17:06:05",
"content": "Obligatory reminder of fauxmo and fauxmoESP.https://hackaday.com/2016/11/23/alexa-make-my-esp8266-do-something/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "619... | 1,760,373,689.125132 | ||
https://hackaday.com/2019/11/11/network-booting-the-pi-4/ | Network Booting The Pi 4 | Jonathan Bennett | [
"Featured",
"Interest",
"Network Hacks",
"Raspberry Pi",
"Slider"
] | [
"how-to",
"PXE",
"Raspberry Pi 4"
] | We’ve talked about
PXE booting the Raspberry Pi 3B+
, and then looked at the
Raspberry Pi 4 as a desktop replacement
. But there’s more! The Pi 4 sports a very useful new feature, the flashable bootloader. Just recently a beta version of that bootloader was released that supports PXE — booting up over the network — wh... | 106 | 36 | [
{
"comment_id": "6194163",
"author": "gregg4",
"timestamp": "2019-11-11T15:44:24",
"content": "The formatting of this article shows that the site goofed again. There are words broken when it should be sentences. The command strings are broken on to two lines when they should nee all on one line.",
... | 1,760,373,689.456561 | ||
https://hackaday.com/2019/11/11/mechanical-seven-segment-display-mixes-art-with-hacking/ | Mechanical Seven-Segment Display Mixes Art With Hacking | Dan Maloney | [
"Art"
] | [
"art",
"cam",
"Circuit Sculpture",
"follower",
"Micro:bit",
"servo",
"seven segment"
] | We’re not sure what to call this one. Is it a circuit sculpture? Sort of, but it moves, so perhaps it’s a kinetic circuit sculpture. Creator [Tomohiro Tsuchita] calls it “something beautiful but totally useless,” which we find a tad harsh. But whatever you call it, we think
this mechanical seven-segment display
is real... | 28 | 12 | [
{
"comment_id": "6194119",
"author": "NFM",
"timestamp": "2019-11-11T12:13:20",
"content": "This could very well make a cool clock.Clocks only count sequentially in one direction, so having 4 of these with a sensor on each to know when a digit is shown so it will pause until the next hour or minute ... | 1,760,373,691.445588 | ||
https://hackaday.com/2019/11/11/lcd-panel-lamp-shade-makes-for-eye-catching-lighting/ | LCD Panel Lamp Shade Makes For Eye-Catching Lighting | Jenny List | [
"home hacks"
] | [
"furniture",
"lcd",
"lighting",
"Nvidia Jetson",
"table lamp"
] | At first sight,
[Kyle]’s Elroy lamp
is simply an attractive piece of modern-styled interior furnishing; its clean lines, wood grain, and contemporary patterning being an asset to the room. But when he pulls out his phone, things change. Because this lamp hides a secret: at its heart may be a standard LED bulb, but the ... | 14 | 7 | [
{
"comment_id": "6194097",
"author": "Sebastian",
"timestamp": "2019-11-11T09:25:41",
"content": "Really cool!It would be interesting to know the energy consumption though.Maybe the Jetson could be replaced with an ESP32 and Bitluni’s VGA library?",
"parent_id": null,
"depth": 1,
"replie... | 1,760,373,691.380217 | ||
https://hackaday.com/2019/11/10/time-sync-through-your-vga-connector/ | Time Sync Through Your VGA Connector | Jenny List | [
"classic hacks",
"computer hacks"
] | [
"i2c",
"ntp",
"vga"
] | While it might be in its twilight years, the venerable VGA video connector conceals a versatile interface that can still provide the experimenter with the opportunity for a variety of hacks. We’ve not seen anything quite like [flok]’s one, in which he uses the VGA interface
to insert timing information from which an N... | 16 | 10 | [
{
"comment_id": "6194091",
"author": "Feinfinger",
"timestamp": "2019-11-11T08:45:40",
"content": "And if you want I2C over USB, have a look at:https://github.com/harbaum/I2C-Tiny-USB/tree/master/digispark",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6194102... | 1,760,373,691.022301 | ||
https://hackaday.com/2019/11/10/diy-electrolysis-tank-removing-rust-while-you-sleep/ | DIY Electrolysis Tank: Removing Rust While You Sleep | Danie Conradie | [
"Tool Hacks"
] | [
"electrolysis",
"machining",
"metalworking",
"microwave transformer",
"rust removal",
"transformer",
"welding"
] | Anyone who’s done a bit of metalworking will know how quickly your stockpile will pick up a coating of rust with even just a bit of humidity. While welding requires only a bit of wire brushing at the joint areas, cleaning a large frame for paint is a completely different story. The projects [Make it Extreme] gets himse... | 41 | 13 | [
{
"comment_id": "6194043",
"author": "The Gambler",
"timestamp": "2019-11-11T03:07:25",
"content": "so he makes a tank that you can literally pick up for free in most towns (55 gallon plastic barrel) goes overboard making a power supply (i’ve used old laptop power supplies before) then throws in a ... | 1,760,373,691.519969 | ||
https://hackaday.com/2019/11/10/hackaday-links-november-10-2016/ | Hackaday Links: November 10, 2019 | Dan Maloney | [
"Hackaday Columns",
"Hackaday links"
] | [
"2019 Hackaday Superconference",
"acoustic",
"cia",
"facial recognition",
"fcc",
"hackaday links",
"hackathon",
"interference",
"numbers station",
"Part 15",
"privacy",
"public safety",
"RFI",
"signals intelligence",
"sonic"
] | In the leafy suburbs of northern Virginia, a place ruled by homeowner’s associations with tremendous power to dictate everything from the color of one’s front door to the length of grass in the lawn, something as heinous as
garage doors suddenly failing to open on command
is sure to cause a kerfuffle. We’ve seen
this s... | 11 | 6 | [
{
"comment_id": "6194021",
"author": "Truth",
"timestamp": "2019-11-11T00:20:39",
"content": "I can already picture use cases for total abuse of the opt-out cap. Anything that can be used for good can be used for evil.",
"parent_id": null,
"depth": 1,
"replies": [
{
"commen... | 1,760,373,691.268517 | ||
https://hackaday.com/2019/11/10/watch-a-3d-printer-get-designed-from-the-ground-up/ | Watch A 3D Printer Get Designed From The Ground Up | Gerrit Coetzee | [
"3d Printer hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"3d",
"CoreXY",
"printer"
] | Too often when you see a build video, you only get to see the final product. Even if there’s footage of the build itself, it’s usually only the highlights as a major component is completed. But thankfully that’s not the case with the
“V-Baby” CoreXY 3D printer
that [Roy Berntsen] has been working on.
Watching through
h... | 15 | 7 | [
{
"comment_id": "6194008",
"author": "piachoo",
"timestamp": "2019-11-10T22:55:07",
"content": "Awful thing is that there are almost no videos of machine at work. Just the guy telling a story and showing printed objects and CAD. Not I don’t beive him, but saying “this item was printed with 150mm/min... | 1,760,373,691.072604 | ||
https://hackaday.com/2019/11/10/3d-print-your-very-own-mechanical-computer/ | 3D Print Your Very Own Mechanical Computer | Bryan Cockfield | [
"computer hacks",
"Toy Hacks"
] | [
"bits",
"computer",
"digi comp 1",
"flip-flop",
"mechanical",
"toy"
] | Most Hackaday readers are familiar with computers from the 70s and 80s, but what about ones even older than that? The Digi Comp 1 was a commercially available computer from the 1960s that actually cost less than a modern-day microcontroller. The catch? It was mechanical rather than electrical. Thanks to retro-wizard [M... | 30 | 6 | [
{
"comment_id": "6193974",
"author": "Old Guy",
"timestamp": "2019-11-10T18:18:52",
"content": "The original DigiComp didn’t have wires. It and Lectron were how I started on whatever this is.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6194013",
... | 1,760,373,691.138036 | ||
https://hackaday.com/2019/11/10/an-atari-graphics-chip-ready-for-you-to-build/ | An Atari Graphics Chip, Ready For You To Build | Jenny List | [
"News",
"Retrocomputing"
] | [
"atari",
"atari 2600",
"Atari 7800",
"emulation",
"retro console",
"retrocomputing",
"schematic"
] | The most notable of the home computer and console hardware from the 8-bit golden era didn’t get their impressive sound and graphics from off-the-shelf silicon, instead they relied on secretive custom chipsets to get the edge over their competitors. Unfortunately for vintage gaming aficionados, those chips are now long ... | 27 | 9 | [
{
"comment_id": "6193957",
"author": "alfcoder",
"timestamp": "2019-11-10T15:54:25",
"content": "that schematic looks crazy, but i can understand, they use to get pay per logic gate they did lay down :)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6193990"... | 1,760,373,691.334083 | ||
https://hackaday.com/2019/11/10/accessibility-apps-get-help-from-bluetooth-buttons/ | Accessibility Apps Get Help From Bluetooth Buttons | Al Williams | [
"Arduino Hacks",
"Cellphone Hacks",
"Wireless Hacks"
] | [
"adafruit",
"blindness",
"Bluefruit",
"Feather",
"hid",
"microsoft soundscape",
"nRF52"
] | Ever hear of Microsoft Soundscape? We hadn’t, either. But apparently it and similar apps like Blindsquare provide people with vision problems context about their surroundings. The app is made to run in the background of the user’s mobile device and respond to media controls, but if you are navigating around with a cane... | 4 | 4 | [
{
"comment_id": "6193944",
"author": "Wallace Owen",
"timestamp": "2019-11-10T15:03:27",
"content": "It looks like he’s pulling the resistors DOWN, and pulling the line hi when the button connects the line to the hi side.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comme... | 1,760,373,691.219444 | ||
https://hackaday.com/2019/11/10/blackjack-game-plays-with-the-limits-of-pyportal/ | Blackjack Game Plays With The Limits Of PyPortal | Kristina Panos | [
"Games"
] | [
"21",
"blackjack",
"PyPortal",
"sprites"
] | It’s that time of year again, when fall is quickly ushered out to make room for all things holiday-related. For many of us, this means going on trips to visit relatives, which, depending on the relatives, can mean soul-crushing boredom. [Andy] has fun relatives who frequent the casino tables, and they inspired him to b... | 4 | 2 | [
{
"comment_id": "6193920",
"author": "dt rashi",
"timestamp": "2019-11-10T12:05:07",
"content": "Thanks For sharing your valuable thought",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6193968",
"author": "RW ver 0.0.1",
"timestamp": "2019-11-10T17:08:... | 1,760,373,691.181077 | ||
https://hackaday.com/2019/11/09/finally-a-usable-rotary-phone-from-a-conference-badge/ | Finally, A Usable Rotary Phone From A Conference Badge | Jenny List | [
"Cellphone Hacks"
] | [
"badgelife",
"dial phone",
"EMF camp 2018",
"rotary phone"
] | A few weeks ago we featured a project from [Dan], a work-in-progress in which he was attaching an EMF 2018 electronic conference badge to a rotary phone. At the time we looked forward to his progress, expecting maybe to see it in our travels round the field at EMF 2021. We have to say we did him a disservice then, beca... | 2 | 1 | [
{
"comment_id": "6193926",
"author": "Josh Bensadon",
"timestamp": "2019-11-10T13:10:31",
"content": "That is awesome! A Bluetooth Rotary Phone! This might just be the right thing for my senior parents. They can’t use a smart phone.If I embed a cell phone inside, they will be able to use it like a... | 1,760,373,691.568004 | ||
https://hackaday.com/2019/11/09/just-how-simple-can-a-transceiver-be/ | Just How Simple Can A Transceiver Be? | Jenny List | [
"Radio Hacks"
] | [
"amateur radio",
"fet",
"QRP",
"transceiver"
] | We’ve frequently talked about amateur radio on these pages, both in terms of the breadth of the hobby and the surprisingly low barrier to entry. It’s certainly the case that amateur radio does not have to mean endlessly calling CQ on SSB with an eye-wateringly expensive rig, and [Bill Meara N2CQR] is on hand with a des... | 20 | 5 | [
{
"comment_id": "6193885",
"author": "Mike Massen @ Perth, Western Australia",
"timestamp": "2019-11-10T04:56:10",
"content": "Hmm, fascinating a great UK Heath Robinson type construction that functions, well done and straightforward write up, thanks :-)Wonder if someone with more time and focus tha... | 1,760,373,691.90627 | ||
https://hackaday.com/2019/11/09/the-rotodyne-fails-to-take-off/ | The Rotodyne Fails To Take Off | Al Williams | [
"History",
"Transportation Hacks"
] | [
"aircraft",
"airplane",
"autogyro",
"history",
"rotodyne"
] | Bacon and eggs, chocolate and peanut butter, salt and pepper; some things just go together. You’d think that a mashup of an airplane and a helicopter would be great, right? The Fairey Rotodyne was just such a thing from the late 1950s and while it looked to be the wave of the future, it never took off — at least, not i... | 45 | 23 | [
{
"comment_id": "6193858",
"author": "DWSK",
"timestamp": "2019-11-10T00:32:15",
"content": "A friend built a small helicopter that also used tip ram jets. To simply say it was LOUD is such a huge understatement. It was loud enough that if you parked a car too close you risked the sound cracking the... | 1,760,373,691.852166 | ||
https://hackaday.com/2019/11/09/use-your-earbuds-media-controls-on-your-laptop-with-this-useful-dongle/ | Use Your Earbud’s Media Controls On Your Laptop With This Useful Dongle | Gerrit Coetzee | [
"digital audio hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"3.5mm",
"adapter",
"audio",
"dongle",
"headphone",
"media",
"pic16"
] | [David] sends in his very nicely designed “Thumpware Media Controller” that lets your mobile phone headphones
control the media playback on your PC
.
We realize that some PCs have support for the extra pins on cellphone earbuds, but at least some of us have experienced the frustration (however small) of habitually reac... | 3 | 2 | [
{
"comment_id": "6193877",
"author": "scifimatt",
"timestamp": "2019-11-10T03:24:49",
"content": "A few months ago I was looking for something like this. After a great deal of searching, I eventually found the unsuccessful Kickstarter for this very project. Seeing the purple OSH Park PCB made me hop... | 1,760,373,692.1302 | ||
https://hackaday.com/2019/11/09/weather-station-gets-much-needed-upgrades/ | Weather Station Gets Much-Needed Upgrades | Bryan Cockfield | [
"Microcontrollers"
] | [
"microcontroller",
"rain",
"sensors",
"sparkfun",
"update",
"weather station",
"Wemos",
"wemos d1 mini",
"wind"
] | Weather stations are a popular project, partly because it’s helpful (and interesting) to know about the weather at your exact location rather than a forecast that might be vaguely in your zip code. They’re also popular because they’re a good way to get experience with microcontrollers, sensors, I/O, and communications ... | 8 | 4 | [
{
"comment_id": "6193802",
"author": "Miles Archer",
"timestamp": "2019-11-09T18:45:22",
"content": "If you’re looking at the software side, I recommendhttp://weewx.com/Open source, python, easily customizable, well supported.I use it on my personal weather station",
"parent_id": null,
"dept... | 1,760,373,692.227944 | ||
https://hackaday.com/2019/11/09/sensing-connected-utility-transport-taxi-for-level-environments/ | Sensing, Connected, Utility Transport Taxi For Level Environments | Anool Mahidharia | [
"Robots Hacks"
] | [
"beaglebone",
"BeagleBone Blue",
"computer vision",
"opencv",
"python",
"raspberry pi",
"robot"
] | If that sounds like a mouthful, just call it
SCUTTLE – the open-source mobile robot designed at Texas A&M University
. SCUTTLE is a low cost (under $350) robot designed for teaching Aggies at the Multidisciplinary Engineering Technology (MXET) program, where it is used for in-lab lessons and semester projects for the M... | 3 | 3 | [
{
"comment_id": "6193786",
"author": "darius",
"timestamp": "2019-11-09T16:44:53",
"content": "Nothing new under Sun, since millions of electric, motorized wheelchairs exactly feature 2 motors rear axis drivejust watch via Bing search engine—-www.bing.com/images/search?q=electric+wheelchair&form=HDR... | 1,760,373,692.046461 | ||
https://hackaday.com/2019/11/16/the-book-of-dreams-brings-back-all-your-memories/ | The Book Of Dreams Brings Back All Your Memories | Jenny List | [
"Retrocomputing"
] | [
"console",
"retrocomputer",
"retrotechnology",
"shop"
] | The retro-facing side of British social media has been abuzz for the last few days with a very neat piece of marketing form the catalogue retailer Argos: they’ve
digitised all their catalogues since 1975 and put them online
. While this contains a cross-section of over four decades’ styles, fads, and ephemera, it also ... | 16 | 8 | [
{
"comment_id": "6195755",
"author": "Jay",
"timestamp": "2019-11-16T19:04:10",
"content": "Jenny, Tom’s article link is broken",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6195759",
"author": "George",
"timestamp": "2019-11-16T20:10:59",
"conten... | 1,760,373,692.186021 | ||
https://hackaday.com/2019/11/16/sow-your-seed-efficiently-with-this-multi-way-drop-seeder/ | Sow Your Seed Efficiently With This Multi-Way Drop Seeder | Jenny List | [
"green hacks"
] | [
"gardening",
"planting",
"seed",
"seed sowing",
"sowing"
] | Anyone who has ever had to propagate small plants from seed will know that efficiently sowing seed can be a difficult process. Getting a consistent number of seed in each point while achieving any sort of speed is almost impossible, and as a result it becomes a tedious process. If only there were some means by which it... | 8 | 2 | [
{
"comment_id": "6195729",
"author": "electrobert",
"timestamp": "2019-11-16T15:23:38",
"content": "Just reball, bro!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195802",
"author": "Bert Lindbergh",
"timestamp": "2019-11-17T02:42:01",
... | 1,760,373,692.273552 | ||
https://hackaday.com/2019/11/16/speeding-up-iota-proof-of-work-using-fpgas/ | Speeding Up IOTA Proof Of Work Using FPGAs | Sharon Lin | [
"FPGA"
] | [
"cryptocurrency",
"fpga",
"iota"
] | Blockchain has existed as a concept since the early 1990s, but keeping a distributed ledger for IoT transactions wasn’t widely implemented until IOTA developed Tangle. The blockchain company was initially founded as a hardware startup and pivoted to work on transactional settlement for IoT. The Tangle, their distribute... | 5 | 4 | [
{
"comment_id": "6195715",
"author": "Alex Rossie",
"timestamp": "2019-11-16T13:53:27",
"content": "What are the threshold for security concerns?Any idea what it would take in hashrate to attack IOTA say on a cloud platform",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"com... | 1,760,373,692.085625 | ||
https://hackaday.com/2019/11/16/this-is-the-bike-you-wanted-your-dad-to-make-you-when-you-were-eight-years-old/ | This Is The Bike You Wanted Your Dad To Make You When You Were Eight Years Old! | Jenny List | [
"Transportation Hacks"
] | [
"motorbike",
"motorcycle",
"two-stroke"
] | The ever-resourceful [Turbo Conquering Mega Eagle] has an excellent excuse for starting on projects, he’s building them for his kids and making videos. We’re not so sure his
little motorcycle
wasn’t built because Dad also wants to have a go though, because it seems he had quite a lot of fun testing it.
The build starts... | 22 | 13 | [
{
"comment_id": "6195671",
"author": "Saabman",
"timestamp": "2019-11-16T09:41:18",
"content": "Brakes! They only slow you down",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195672",
"author": "KungFuWitch",
"timestamp": "2019-11-16T09:44:3... | 1,760,373,692.326756 | ||
https://hackaday.com/2019/11/15/this-handheld-c64-design-study-needs-to-be-made/ | This Handheld C64 Design Study Needs To Be Made | Lewin Day | [
"Retrocomputing"
] | [
"c64",
"commodore 64",
"portable c64"
] | The Commodore 64 remains the best selling home computer of all time, and is unlikely to be toppled anytime soon. It continues to inspire a diehard community of makers and hackers to this day. [Cem Tezcan] is one of those people,
and his design study of a handheld C64 is utterly droolworthy
.
It’s quite likely that you’... | 55 | 17 | [
{
"comment_id": "6195648",
"author": "DanR",
"timestamp": "2019-11-16T06:05:58",
"content": "Exploded view pls! I would love to know how to fit even a folded CRT in that space!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195669",
"author": "qwert... | 1,760,373,692.423661 | ||
https://hackaday.com/2019/11/15/double-pendulum-uses-custom-slip-rings/ | Double Pendulum Uses Custom Slip Rings | Lewin Day | [
"Misc Hacks"
] | [
"double pendulum",
"pendulum",
"slip ring"
] | Rotating mechanisms can be a headache when it becomes necessary to deliver power through them. [Igor Brkic] faced just such a challenge when creating his double-pendulum build,
and solved it with a little DIY.
The project is known as KLAATNO, inspired by the Croatian word for pendulum, klatno. It’s a mechanical install... | 11 | 5 | [
{
"comment_id": "6195695",
"author": "mrehorst",
"timestamp": "2019-11-16T12:03:14",
"content": "klaatno berada nicto!Very cool, but something has to be done about the noise…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195738",
"author": "igor b.... | 1,760,373,692.469381 | ||
https://hackaday.com/2019/11/15/music-box-paper-punching-machine-settles-the-score/ | Music Box Paper-Punching Machine Settles The Score | Kristina Panos | [
"Arduino Hacks",
"Musical Hacks"
] | [
"hand crank",
"Music box",
"stepper motor"
] | As soon as [pashiran] laid eyes on his first hand-cranked music box, he knew he was in love. Then, he started punching the holes for his first ditty. As the repetitive stress of punching heated up his arm, his love cooled a bit. Annealed by the ups and downs of this experience, he decided to design
a machine that can p... | 11 | 8 | [
{
"comment_id": "6195593",
"author": "Hirudinea",
"timestamp": "2019-11-16T00:32:11",
"content": "He should make one that prints Buffalo standard piano rolls. Gotta admit it’s catchy.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6195768",
"author":... | 1,760,373,692.515397 | ||
https://hackaday.com/2019/11/09/plan-ahead-roaming-charges-are-a-killer/ | Plan Ahead: Roaming Charges Are A Killer | Al Williams | [
"News",
"Wireless Hacks"
] | [
"eagle",
"russia",
"sms",
"text message"
] | As the world gets more connected and computerized, it is easy to have an unintended consequence pop up and bite you. Especially because, so much of the time, today, things just work. The days of fretting over how to connect two computers, or how to store reasonable amounts of data are gone. Most of us never have to sif... | 20 | 11 | [
{
"comment_id": "6193745",
"author": "z-nexx",
"timestamp": "2019-11-09T12:09:24",
"content": "*laughs in EU*",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6193747",
"author": "Vadim Borisev",
"timestamp": "2019-11-09T12:25:46",
"con... | 1,760,373,692.671473 | ||
https://hackaday.com/2019/11/09/considering-the-originality-question/ | Considering The Originality Question | Jenny List | [
"Repair Hacks"
] | [
"railroad",
"railway",
"refurbishment",
"repair",
"steam",
"steam locomotive"
] | Many Hackaday readers have an interest in older technologies, and from antique motorcycles to tube radios to retrocomputers, you own, conserve and restore them. Sometimes you do so using new parts because the originals are either unavailable or downright awful, but as you do so are you really restoring the item or crea... | 37 | 17 | [
{
"comment_id": "6193732",
"author": "Gregg Eshelman",
"timestamp": "2019-11-09T10:14:51",
"content": "Some of the WW2 military aircraft in flying condition have less than 50% of their original metal. The only flyable example of the P-61 Black Widow will be around 70% new construction when it’s fini... | 1,760,373,693.440975 | ||
https://hackaday.com/2019/11/08/this-radio-control-sailboat-uses-2x4s/ | This Radio Control Sailboat Uses 2X4s | Al Williams | [
"Radio Hacks",
"Toy Hacks"
] | [
"radio control",
"sailboat"
] | When [PeterSripol] was a kid, he made a simple sailboat from a scrap piece of 2×4 and some napkin sails. He’s not 8 years old anymore, but he decided
he wanted to make another 2X4 sailboat
using the skills he’s learned since he was a kid.
You’ll have to get past storytime and mice, but the build skill is evident. There... | 5 | 2 | [
{
"comment_id": "6193771",
"author": "cyberteque",
"timestamp": "2019-11-09T14:30:46",
"content": "I’ve been buying 4 shot since I was 13recently I went to a gun shop to buy a “keg” of 4 shotI was told I needed a firearms license!!wtaf???it’s not ammunition!!!I checked wit the firearms division of S... | 1,760,373,692.998931 | ||
https://hackaday.com/2019/11/08/we-are-bowled-over-by-the-bouled/ | We Are Bowled Over By The BouLED | Richard Baguley | [
"News"
] | [] | We’ve seen a lot of cubic LED creations recently, but this one takes it a bit further. The
BouLED is a work-in-progress icosahedric LED display
, a globe-like sphere made of 20 flat triangular LED-lit faces. When combined with sensors inside the display, it will be able to stabilize the image. In other words: you can p... | 3 | 3 | [
{
"comment_id": "6193714",
"author": "Thopter",
"timestamp": "2019-11-09T06:52:16",
"content": "Now for them to build a smaller version into a bowling ball to fit the expectations the title gave. :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6193748",
... | 1,760,373,692.846668 | ||
https://hackaday.com/2019/11/08/making-a-robotic-dog-better-by-adding-springiness-without-springs/ | Making A Robotic Dog Better By Adding Springiness Without Springs | Danie Conradie | [
"Robots Hacks"
] | [
"3d robotics",
"auto stabilization",
"quadroped",
"robot dog"
] | Getting a legged robot to stay upright, especially a quadruped or biped, can be a challenging undertaking. To experiment with different approaches, [James Bruton] built robot dog test platform and is playing with “
dynamic compliant simulated springs
“, or in other words, using the motors to act as though they were spr... | 5 | 4 | [
{
"comment_id": "6193702",
"author": "Spacedog",
"timestamp": "2019-11-09T02:04:37",
"content": "don’t those trinamic stepper drivers that are used in newer 3D printers have a circuit for variable detection of physical resistance through increased voltage passthrough? in 3D printers it’s used on an ... | 1,760,373,693.037987 | ||
https://hackaday.com/2019/11/08/why-buy-toys-when-you-can-build-them-instead/ | Why Buy Toys When You Can Build Them Instead? | Tom Nardi | [
"Toy Hacks"
] | [
"3D printed enclosure",
"reverse engineering",
"rfid",
"RGB LED",
"toy"
] | Like many creative individuals who suddenly find themselves parents, [Marta] wanted to make something special for his children to play with. Anybody can just purchase an off-the-shelf electronic toy, but if you’ve got the ability to design one on your own terms, why not do it? But even compared to the fairly high stand... | 10 | 5 | [
{
"comment_id": "6193667",
"author": "Paul Hupman",
"timestamp": "2019-11-08T22:06:14",
"content": "Arrrrrrgh! Granparent bait!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6193712",
"author": "Steve L",
"timestamp": "2019-11-09T04:48:22",
... | 1,760,373,692.952786 | ||
https://hackaday.com/2019/11/08/uecg-a-very-small-wearable-ecg/ | UECG – A Very Small Wearable ECG | Gerrit Coetzee | [
"Medical Hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"ecg",
"uECG"
] | [Ultimate Robotics] has been working on designing and producing an extremely small
ECG that can stream data real time
.
Typical electrocardiogram equipment is bulky: miniaturization doesn’t do much for a hospital where optimizations tend to lean towards, durability, longevity, and ease of use. Usually a bunch of leads ... | 16 | 7 | [
{
"comment_id": "6193650",
"author": "Bob - MSN, RN",
"timestamp": "2019-11-08T21:02:25",
"content": "Ok, an interesting way to reveal pulse rate, however, there’s very little else that can be gleaned from the data this device provides. It “might” be able to reveal A-Fib, though the filtering on th... | 1,760,373,692.902329 | ||
https://hackaday.com/2019/11/08/the-dyson-awards-certainly-do-not-suck/ | The Dyson Awards Definitely Do Not Suck | Kristina Panos | [
"contests",
"Featured"
] | [
"dyson",
"dyson awards",
"innovation",
"marinatex",
"microplastics",
"programmable air"
] | Named after British inventor James Dyson of cyclonic vacuum cleaner fame,
the Dyson Awards
are presented annually to current and recent students of engineering, industrial design, and product design, regardless of age. Students from 27 countries work alone or in groups to describe their inventions, which are then judge... | 32 | 12 | [
{
"comment_id": "6193619",
"author": "mike",
"timestamp": "2019-11-08T18:19:33",
"content": "“AEROFLUX CONTACT-LESS BRAKES” I think the kid (Nikola Kostic) going to University of Toronto whos working on this must have fell asleep in class to many times. Yes this does work, but to stop the energy of... | 1,760,373,693.209531 | ||
https://hackaday.com/2019/11/08/hackaday-podcast-043-ploopy-castlevania-cube-scroller-projection-map-your-face-and-smoosh-those-3d-prints/ | Hackaday Podcast 043: Ploopy, Castlevania Cube-Scroller, Projection Map Your Face, And Smoosh Those 3D Prints | Mike Szczys | [
"Hackaday Columns",
"Podcasts"
] | [
"Castlevania",
"extrusion width",
"Hackaday Podcast",
"nes",
"oil pills",
"projection mapping",
"trackball",
"unix",
"welding"
] | Before you even ask, it’s an open source trackball and you’re gonna like it. Hackaday Editors Mike Szczys and Elliot Williams get down to brass tacks on this week’s hacks. From laying down fatter 3D printer extrusion and tricking your stick welder, to recursive Nintendos and cubic Castlevania, this week’s episode is pa... | 0 | 0 | [] | 1,760,373,693.296717 | ||
https://hackaday.com/2019/11/08/steampunk-water-thief-clock-steals-attention-too/ | Steampunk Water Thief Clock Steals Attention, Too | Kristina Panos | [
"clock hacks"
] | [
"clepsydra",
"msp430",
"siphon",
"water clock",
"water thief clock"
] | The funny thing about clocks is that the more intriguing they are to look at, the more precious time is wasted. This steampunk clepsydra is no exception. A clepsydra, or water thief clock is an ancient design that takes many forms. Any clock that uses the inflow or outflow of water to measure time could be considered a... | 7 | 4 | [
{
"comment_id": "6193636",
"author": "Kelly",
"timestamp": "2019-11-08T20:22:20",
"content": "[Obligatory 555 comment]",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6193660",
"author": "Robert",
"timestamp": "2019-11-08T21:31:00",
"c... | 1,760,373,693.257808 | ||
https://hackaday.com/2019/11/08/this-week-in-security-bgp-bogons-chrome-zero-day-and-save-game-attacks/ | This Week In Security: BGP Bogons, Chrome Zero Day, And Save Game Attacks | Jonathan Bennett | [
"Hackaday Columns",
"Security Hacks"
] | [
"bgp",
"Deserialization",
"This Week in Security"
] | Our own [Pat Whetman] wrote about a clever technique published by the University of Michigan, where
lasers can be used to trigger a home assistant device
. It’s an interesting hack, and you should go read it.
Borrowing IP Addresses
We’ve lived through several IPv4 exhaustion milestones, and the lack of available addres... | 24 | 7 | [
{
"comment_id": "6193580",
"author": "Security is important but so is ease-of-use",
"timestamp": "2019-11-08T16:08:22",
"content": "“While [Mozilla] making malware harder to install is certainly welcome, this makes some use cases very difficult. An example that comes to mind is a Linux package that ... | 1,760,373,693.360099 | ||
https://hackaday.com/2019/11/08/keep-an-eye-on-the-neighborhood-with-this-passive-radar/ | Keep An Eye On The Neighborhood With This Passive Radar | Dan Maloney | [
"Radio Hacks"
] | [
"coherent",
"Doppler",
"DVB-T",
"passive",
"radar",
"sdr",
"wireless",
"yagi"
] | If your neighborhood is anything like ours, walking across the street is like taking your life in your own hands. Drivers are increasingly unconcerned by such trivialities as speed limits or staying under control, and anything goes when they need to connect Point A to Point B in the least amount of time possible.
Monit... | 25 | 5 | [
{
"comment_id": "6193524",
"author": "Truth",
"timestamp": "2019-11-08T12:52:46",
"content": "It is like a 1D radar.You have a number that can be considered an approximation of the distance from the delay between the two signals.You have a number that can be considered an approximation of the speed ... | 1,760,373,693.502775 | ||
https://hackaday.com/2019/11/08/real-life-qwop-probably-stings-a-fair-bit/ | Real Life QWOP Probably Stings A Fair Bit | Lewin Day | [
"Misc Hacks"
] | [
"bennett foddy",
"qwop",
"TENS"
] | QWOP was a flashgame released by [Bennett Foddy] in the distant past. Players would use individual keys to trigger muscle spasms in their character’s legs, attempting to sprint as far as possible without hitting the ground. Hackaday alumus
[The Hacksmith] wanted to recreate this in real life, and set to work.
Initially... | 8 | 6 | [
{
"comment_id": "6193484",
"author": "Jack",
"timestamp": "2019-11-08T09:41:43",
"content": "they’d get some “intereting” results by swapping a couple of those electrodes",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6193542",
"author": "psuedonymous",
... | 1,760,373,693.545676 | ||
https://hackaday.com/2019/11/07/roofing-radio-telescope-sees-the-galaxy/ | Roofing Radio Telescope Sees The Galaxy | Al Williams | [
"Radio Hacks"
] | [
"Radio Astronomy",
"Radio Telescope",
"RTL-SDR"
] | [David Schneider] asked himself, “How big a radio antenna would you need to observe anything interesting?” The answer turns out to be a $150 build of
a half meter antenna
. He uses it to detect the motions of the spiral arms of the Milky Way. The first attempt was a satellite TV dish and a cantenna feed, which didn’t w... | 6 | 3 | [
{
"comment_id": "6193533",
"author": "Bill",
"timestamp": "2019-11-08T13:44:51",
"content": "It’s possible that the aluminized foam board didn’t make a good faraday cage because the panels were not electrically connected. The oxide layer on the aluminum, or any protective coating on it, would preve... | 1,760,373,693.590794 | ||
https://hackaday.com/2019/11/07/easy-optical-drive-sharing-with-pyods/ | Easy Optical Drive Sharing With PYODS | Lewin Day | [
"Misc Hacks"
] | [
"iso",
"optical drive",
"python"
] | For many of us, the optical drive is a thing of the past. Once considered essential, the technology is no longer featured in the average laptop,where their omission saves plenty of precious space, and they’re rare on desktops, too. However, every now and then, something comes up and it’d be useful to have one on hand.
... | 41 | 9 | [
{
"comment_id": "6193432",
"author": "Ostracus",
"timestamp": "2019-11-08T03:35:47",
"content": "“Once considered essential, the technology is no longer featured in the average laptop,where their omission saves plenty of precious space, and they’re rare on desktops, too.”And yet cases still sell wit... | 1,760,373,693.813095 | ||
https://hackaday.com/2019/11/07/well-engineered-rf-amplifier-powers-ham-radio-contacts/ | Well-Engineered RF Amplifier Powers Ham Radio Contacts | Dan Maloney | [
"Radio Hacks"
] | [
"amateur radio",
"amplifier",
"ham",
"LDMOS",
"push-pull",
"RF",
"transmission line transformer"
] | Typically, amateur radio operators use the minimum power needed to accomplish a contact. That’s just part of being a good spectrum citizen, and well-earned bragging rights go to those who make transcontinental contacts on the power coming from a coin cell. But sometimes quantity has a quality all its own, and getting m... | 35 | 13 | [
{
"comment_id": "6193398",
"author": "Canuckfire",
"timestamp": "2019-11-08T00:20:05",
"content": "Wow. It says a lot about build quality and attention to detail when I had to take a second close look to realize that the photo is not a 3d model render.That is a fantastically clean build!I am concern... | 1,760,373,693.887522 | ||
https://hackaday.com/2019/11/07/rock-n-roll-with-3d-printed-tonewheels/ | Rock ‘n Roll With 3D-Printed Tonewheels | Kristina Panos | [
"Arduino Hacks",
"Musical Hacks"
] | [
"arduino",
"ferrous filament",
"karn evil 9",
"pickup winder",
"Proto-Pasta",
"stepper",
"tonewheel"
] | What can you do with ferromagnetic PLA? [TheMixedSignal] used it to give new meaning to the term ‘musicians’ gear’. He’s made a proof of concept for
a DIY tone generator
, which is the same revolutionary system that made the Hammond organ sing.
Whereas the Hammond has one tonewheel per note, this project uses an Arduin... | 4 | 3 | [
{
"comment_id": "6193381",
"author": "echodelta",
"timestamp": "2019-11-07T22:14:08",
"content": "Make 12 cone rotors and spin them with steppers and a chromatic source. 96 or so pickups and you are there.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "61934... | 1,760,373,693.730026 | ||
https://hackaday.com/2019/11/07/bobble-bot-teaches-modern-real-time-robot-control/ | Bobble-Bot Teaches Modern Real-Time Robot Control | Gerrit Coetzee | [
"Robots Hacks",
"The Hackaday Prize"
] | [
"2019 Hackaday Prize",
"bobble-bot",
"inverted pendulum",
"real",
"robot",
"ros",
"rt",
"time"
] | Bobble-Bot uses the standard inverted pendulum problem to
teach modern robotic control
using a Raspberry Pi, RT-Linux, and ROS.
We’re really impressed by the polish and design effort put into this project, and it’s no surprise that it’s a
finalist in the 2019 Hackaday Prize.
Bobble-Bot is a top heavy bot sitting on two... | 7 | 4 | [
{
"comment_id": "6193390",
"author": "steve",
"timestamp": "2019-11-07T23:23:15",
"content": "I’m not trying to bash it or anything, but it sure looks cobbled together, I suppose that’s necessary for quick kits and learning the basics.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,373,694.060677 | ||
https://hackaday.com/2019/11/07/found-footage-elliot-williams-talks-nexus-technologies/ | Found Footage: Elliot Williams Talks Nexus Technologies | Tom Nardi | [
"cons",
"Hackaday Columns",
"home hacks",
"Slider"
] | [
"2017 Hackaday Superconference",
"ESP8266",
"Hackaday SuperConference",
"hardware hacking",
"home automation",
"internet of things",
"mosquitto",
"mqtt"
] | Back at the 2017 Superconference, Hackaday Managing Editor Elliot Williams started his talk about the so-called “Internet of Things” by explaining the only part he doesn’t like about the idea is the Internet… and the things. It’s a statement that most of us would still agree with today. If anything, the situation has g... | 25 | 8 | [
{
"comment_id": "6193344",
"author": "eternityforest",
"timestamp": "2019-11-07T19:22:38",
"content": "I’m all for the IoT, as long as it works offline and doesn’t become trash when the cloud service dissapears.The stove can send data on exactly what I’m cooking directly to China, Russia, and the NS... | 1,760,373,693.95868 | ||
https://hackaday.com/2019/11/07/3d-printed-magazines-tame-the-smd-tape-beast/ | 3D-Printed Magazines Tame The SMD Tape Beast | Dan Maloney | [
"Tool Hacks"
] | [
"pick and place",
"shop tips",
"smd",
"storage",
"surface mount"
] | Chances are pretty good that you’ve got a box or a bin somewhere in your shop with coils of SMD component tapes in it. If you’re lucky, the coils are somewhat contained in their conductive Mylar bags; if you’re more like us, the tapes are flopping around loose in an attempt to seemingly tie themselves together. In eith... | 21 | 8 | [
{
"comment_id": "6193320",
"author": "Matt",
"timestamp": "2019-11-07T17:39:42",
"content": "I guess this might be useful for small scale production given how easy it is to rearrange the containers.Personally, I only do one off prototypes and prefer SMD sample books. They are much more compact and s... | 1,760,373,694.015218 | ||
https://hackaday.com/2019/11/07/teslas-smart-summon-gimmick-or-greatness/ | Tesla’s Smart Summon – Gimmick Or Greatness? | Lewin Day | [
"car hacks",
"Featured",
"Interest",
"Slider"
] | [
"autonomous car",
"autonomous cars",
"autonomous vehicle",
"smart summon",
"tesla"
] | Tesla have always aimed to position themselves as part automaker, part tech company. Their unique offering is that their vehicles feature cutting-edge technology not available from their market rivals. The company has long touted it’s “full self-driving” technology, and regular software updates have progressively unloc... | 128 | 22 | [
{
"comment_id": "6193277",
"author": "drenehtsral",
"timestamp": "2019-11-07T15:30:08",
"content": "I bet this feature exists to collect data Tesla can use to improve object detection, path planning, and right of way heuristics from many users in real-world condition but with lower stakes (low speed... | 1,760,373,694.527317 | ||
https://hackaday.com/2019/11/07/takata-airbag-recalls-widen-to-potentially-affect-other-types-of-airbag/ | Takata Airbag Recalls Widen To Potentially Affect Other Types Of Airbag | Lewin Day | [
"car hacks",
"News"
] | [
"airbag",
"product recall",
"recall",
"takata",
"takata airbag recall"
] | The Takata airbag case has become the largest product recall in history, caused over 20 deaths, and cost many billions of dollars. Replacement efforts are still ongoing, and sadly, the body count continues to rise. Against this backdrop,
further recalls have been announced affecting another type of Takata airbag.
The ... | 55 | 16 | [
{
"comment_id": "6193242",
"author": "mike",
"timestamp": "2019-11-07T13:20:10",
"content": "” BMW Australia have advised owners not to drive affected vehicles, and are offering loan or hire cars to affected vehicles.”LOL, does anyone remember when we drove our cars before airbags ?",
"parent_id... | 1,760,373,694.225206 | ||
https://hackaday.com/2019/11/07/hiring-from-a-makerspace-pays-off/ | Hiring From A Makerspace Pays Off | Bryan Cockfield | [
"Misc Hacks",
"Science"
] | [
"3d printing",
"ct scanner",
"dallas",
"fossil",
"Imaging",
"makerspace",
"museum",
"science"
] | A makerspace is a great place to use specialty tools that may be too expensive or large to own by oneself, but there are other perks that come with participation in that particular community. For example, all of the skills you’ve gained by using all that fancy equipment may make you employable in some very niche situat... | 12 | 5 | [
{
"comment_id": "6193235",
"author": "jpa",
"timestamp": "2019-11-07T12:40:53",
"content": "Wouldn’t a cardboard box with packing foam have done the same?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6193240",
"author": "Tweepy",
"timestamp... | 1,760,373,694.272722 | ||
https://hackaday.com/2019/11/07/tiny-sao-tough-ctf-challenge/ | Tiny SAO, Tough CTF Challenge! | Jenny List | [
"Microcontrollers"
] | [
"badgelife",
"ctf",
"sao"
] | Over the year or two since the SAO connector specification was published, otherwise known as the
Shitty Addon
, we’ve seen a huge variety of these daughter boards for our favourite electronic badges. Many of them are works of art, but there’s another subset that’s far less about show and more about clever functionality... | 0 | 0 | [] | 1,760,373,694.310581 | ||
https://hackaday.com/2019/11/06/tiny-drones-navigate-like-real-bugs/ | Tiny Drones Navigate Like Real Bugs | Danie Conradie | [
"drone hacks"
] | [
"crazyflie",
"drone",
"quadcopter"
] | When it comes to robotic navigation, the usual approach is to go as technically advanced and “smart” as possible. Yet the most successful lifeforms that we know of follow a completely different approach. With limited senses and cognitive abilities, the success of invertebrates like ants and honeybees lie in cooperation... | 14 | 5 | [
{
"comment_id": "6193181",
"author": "Mungojerry",
"timestamp": "2019-11-07T07:41:17",
"content": "There’s a 3d imaging technique that can build up a full map…I can only find the company matterport, however some university had some it a few years ago. Someone here will remind me. Anyway it’d be coo... | 1,760,373,694.358465 | ||
https://hackaday.com/2019/11/06/the-open-source-smart-home/ | The Open Source Smart Home | Gerrit Coetzee | [
"Arduino Hacks",
"Raspberry Pi"
] | [
"arduino",
"candle",
"design",
"hack",
"mozilla",
"smart home",
"web"
] | [Tijmen Schep] sends in his project,
Candle Smart Home, which is an exhibit of 12 smart home devices
which are designed around the concepts of ownership, open source, and privacy.
The central controller runs on a Raspberry Pi which is running Mozilla’s new
smart home operating system
. Each individual device is Arduino... | 27 | 10 | [
{
"comment_id": "6193147",
"author": "McNugget",
"timestamp": "2019-11-07T03:09:20",
"content": "Incomplete sentence, second paragraph. Check the last sentence.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "6193152",
"author": "Ren",
"timest... | 1,760,373,694.587672 | ||
https://hackaday.com/2019/11/06/autonomous-air-boat-vs-lake-washington/ | Autonomous Air Boat Vs Lake Washington | Danie Conradie | [
"drone hacks",
"Transportation Hacks"
] | [
"3D printed boat",
"3d printing",
"ardupilot",
"autonomous boat",
"drone"
] | Autonomous vehicles make a regular appearance around here, as does [Daniel Riley] aka [rctestflight]. His fascination with building long-endurance autonomous vehicles continues, and this time he built an
autonomous air boat
.
This craft incorporates a lot of the lessons learnt from his
autonomous boat that used a plast... | 9 | 7 | [
{
"comment_id": "6193139",
"author": "CMH62",
"timestamp": "2019-11-07T01:46:09",
"content": "Flex Seal to the rescue!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "6193154",
"author": "Andrew Hooper",
"timestamp": "2019-11-07T03:33:34",
"content"... | 1,760,373,694.636227 |
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