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https://hackaday.com/2018/05/20/hackaday-links-may-20-2018/ | Hackaday Links: May 20, 2018 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"11/70",
"Lynq",
"pdp",
"PiDP",
"sdr",
"sdrplay",
"TX2"
] | One of the more interesting pieces of tech from Hollywood that never seems to become a reality is a location tracker. Remember the ‘movement tracker’ in
Alien
that found the cat in the locker? Yeah, like that. Something that reports the direction and distance to a target, kind of like a PKE Meter from
Ghostbusters
. I ... | 38 | 9 | [
{
"comment_id": "4569805",
"author": "CRImier",
"timestamp": "2018-05-20T23:50:49",
"content": "RE: SDRPlay, here’s their last statement:http://www.sdrplay.com/community/viewtopic.php?f=6&t=3229Basically, a local (nothing cloud-based) blacklist, and if you cooperate, you’ll get whitelisted. Cumberso... | 1,760,374,363.914259 | ||
https://hackaday.com/2018/05/20/inverted-pendulum-for-the-control-enthusiast/ | Inverted Pendulum For The Control Enthusiast | Bryan Cockfield | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"ai",
"cart",
"controls",
"inverted",
"openai gym",
"pendulum",
"trolley"
] | Once you step into the world of controls, you quickly realize that controlling even simple systems isn’t as easy as applying voltage to a servo. Before you start working on your own bipedal robot or scratch-built drone, though, you might want to get some practice with this intricate field of engineering. A classic prob... | 21 | 9 | [
{
"comment_id": "4569531",
"author": "BillSF9c",
"timestamp": "2018-05-20T20:21:43",
"content": "Ok… help me out. Application? Writing upside down, in space? (Almost an oxymoron, eh?) So.. we did thus, w a pencil, as kids. Now, try to find a pencil… Now we will be able to entertain Martians via Virt... | 1,760,374,363.97523 | ||
https://hackaday.com/2018/05/19/visit-tapigami-tape-city-where-tape-is-the-fabric-of-society/ | Visit Tapigami Tape City, Where Tape Is The Fabric Of Society | Roger Cheng | [
"Misc Hacks"
] | [
"bamf",
"Bay Area maker faire",
"bay area maker faire 2018",
"duct tape",
"maker faire",
"packaging tape",
"sticky tape",
"tape"
] | With so many cool things going on at Bay Area Maker Faire, it takes something special to stand out from the crowd. Covering several hundred square feet of floor and wall with creations made of tape would do the trick. Welcome to
Tapigami
Tape City, a traveling art exhibit by [Danny Scheible].
Many of us used constructi... | 2 | 2 | [
{
"comment_id": "4567986",
"author": "Eric Mockler",
"timestamp": "2018-05-19T20:25:32",
"content": "The old SNL “scotch tape store” skit comes to mind",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4568477",
"author": "Kevin",
"timestamp": "2018-05-20... | 1,760,374,363.494807 | ||
https://hackaday.com/2018/05/19/people-with-dementia-can-dress-smarter/ | People With Dementia Can DRESS Smarter | Brian McEvoy | [
"digital cameras hacks",
"Medical Hacks",
"Tablet Hacks",
"Wearable Hacks"
] | [
"Alzheimer disease",
"computer-assisted",
"disorders",
"dresser",
"image processing",
"matrix code",
"neurocognitive",
"ocr",
"smart home"
] | People with dementia have trouble with some of the things we take for granted, including dressing themselves. It can be a remarkably difficult task involving skills like balance, pattern recognition inside of other patterns, ordering, gross motor skill, and dexterity to name a few. Just because something is common, doe... | 9 | 3 | [
{
"comment_id": "4567967",
"author": "aigeoj",
"timestamp": "2018-05-19T20:03:52",
"content": "The worst thing that can happen with this set is when patient decides to recreate goatse (past memories, eye opening expirience) instead of dressing up.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,374,364.019532 | ||
https://hackaday.com/2018/05/19/motorized-stage-finesses-the-microscopic-world/ | Motorized Stage Finesses The Microscopic World | Dan Maloney | [
"Misc Hacks"
] | [
"Joystick",
"microscope",
"microscopy",
"microstepping",
"NEMA-8",
"optical",
"positioning",
"stage",
"stepper",
"X-Y"
] | No matter how fine your fine motor skills may be, it’s really hard to manipulate anything on the stage of a microscope with any kind of accuracy. One jitter or caffeine-induced tremor means the feature of interest on the sample you’re looking at shoots off out of the field of view, and getting back to where you were is... | 12 | 4 | [
{
"comment_id": "4567554",
"author": "Gravis",
"timestamp": "2018-05-19T15:25:10",
"content": "You couldn’t have just written 27.344 nm?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4567562",
"author": "Gravis",
"timestamp": "2018-05-19T15:... | 1,760,374,363.780892 | ||
https://hackaday.com/2018/05/19/one-key-keyboard-is-exercise-in-sub-millimeter-design/ | One-key Keyboard Is Exercise In Sub-millimeter Design | Donald Papp | [
"how-to",
"Microcontrollers"
] | [
"3d printed",
"cherry mx",
"eagle",
"enclosure",
"nylon",
"pcb",
"PIC16f1459",
"sls",
"usb keyboard"
] | As [Glen] describes it, the only real goal in his decision to design
his single-key USB keyboard
was to see how small he could build a functional keyboard using a Cherry MX key switch, and every fraction of a millimeter counted. Making a one-key USB keyboard is one thing, but making it from scratch complete with form-f... | 15 | 10 | [
{
"comment_id": "4567339",
"author": "dabzzz",
"timestamp": "2018-05-19T11:35:10",
"content": "I’d buy ten of these – currently using some beetle arduino board with a SMD switch across the chip. Looks techie, but not everyone likes that look…",
"parent_id": null,
"depth": 1,
"replies": [... | 1,760,374,363.838011 | ||
https://hackaday.com/2018/05/19/parallel-programming-for-fpgas/ | Parallel Programming For FPGAs | Al Williams | [
"FPGA"
] | [
"fpga",
"hls"
] | One of the best features of using FPGAs for a design is the inherent parallelism. Sure, you can write software to take advantage of multiple CPUs. But with an FPGA you can enjoy massive parallelism since all the pieces are just hardware. Every light switch in your house operates in parallel with the others. There’s a n... | 12 | 8 | [
{
"comment_id": "4567156",
"author": "BiOzZ",
"timestamp": "2018-05-19T08:29:18",
"content": "In school they taught us some methods of using vhdl to do parallel programming in computing it self (not just in fpgas)But never dived in to itParallel designs in FPGAs are a massive incentive to use an FPG... | 1,760,374,364.072115 | ||
https://hackaday.com/2018/05/18/nuclear-synchroscope-gets-new-life/ | Nuclear Synchroscope Gets New Life | Anool Mahidharia | [
"hardware",
"Tech Hacks"
] | [
"arduino mega",
"AT24C32",
"BME 280",
"dht22",
"DS3231",
"IN-12a",
"K155ID1",
"nixie",
"nixie tube",
"SN 74141",
"Syncroscope"
] | The Synchroscope is an interesting power plant instrument which doubles up as two devices in one. If the generator frequency is not matched with the grid frequency, the rotation direction of the synchroscope pointer indicates if the frequency (generator speed) needs to be increased or decreased. When it stops rotating,... | 11 | 8 | [
{
"comment_id": "4567211",
"author": "echodelta",
"timestamp": "2018-05-19T09:22:20",
"content": "If the first digit is not lit… is it working? Zero! OK. Youl’d want that in a nuke plant, right?That aside I was expecting a giant dial like a strobe tuner. A plant operator at the control keeping the l... | 1,760,374,363.59089 | ||
https://hackaday.com/2018/05/18/hybrid-bench-power-supply-can-also-hit-the-road/ | Hybrid Bench Power Supply Can Also Hit The Road | Dan Maloney | [
"Tool Hacks"
] | [
"battery",
"bench supply",
"boost",
"buck",
"dc-dc",
"DPS3003",
"lithium",
"power supply",
"psu",
"smps"
] | Everyone needs a bench power supply, and rolling your own has almost become a rite of passage for hackers. For a long time, the platform of choice for such builds seemed to be the ATX power supply from a computer. While we certainly still see those builds, a lot of the action has switched to those cheap eBay programmab... | 4 | 2 | [
{
"comment_id": "4566730",
"author": "CMH62",
"timestamp": "2018-05-19T02:11:46",
"content": "Power to the people!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4567090",
"author": "Sparkygsx",
"timestamp": "2018-05-19T07:16:25",
"content": "Just ... | 1,760,374,363.73388 | ||
https://hackaday.com/2018/05/18/modular-blocks-help-fight-disease/ | Modular Blocks Help Fight Disease | Bryan Cockfield | [
"chemistry hacks",
"Medical Hacks"
] | [
"biology",
"blocks",
"Chemistry",
"cost",
"diagnosis",
"medical",
"medicine",
"mit",
"modular"
] | When engineering a solution to a problem, an often-successful approach is to keep the design as simple as possible. Simple things are easier to produce, maintain, and use. Whether you’re building a robot, operating system, or automobile, this type of design can help in many different ways. Now, researchers at MIT’s Lit... | 3 | 3 | [
{
"comment_id": "4567256",
"author": "turtle-z",
"timestamp": "2018-05-19T09:43:56",
"content": "Is there somewhere that I can actually buy these blocks from them, at that price, with all of the antibodies or whatever already installed for zika virus or other diseases? Or do I need to make them myse... | 1,760,374,363.534595 | ||
https://hackaday.com/2018/05/18/tiny-transmitter-brings-out-the-spy-inside-you/ | Tiny Transmitter Brings Out The Spy Inside You | Dan Maloney | [
"Radio Hacks"
] | [
"bug",
"espionage",
"MEMS microphones",
"oscillator",
"resonator",
"saw",
"spy",
"surface acoustic wave",
"transmitter"
] | When it comes to surveillance, why let the government have all the fun?
This tiny spy transmitter
is just the thing you need to jumpstart your recreational espionage efforts.
We kid, of course — you’ll want to stay within the law of the land if you choose to build [TomTechTod]’s diminutive transmitter. Barely bigger th... | 10 | 6 | [
{
"comment_id": "4566103",
"author": "Ostracus",
"timestamp": "2018-05-18T22:47:26",
"content": "“When it comes to surveillance, why let the government have all the fun? This tiny spy transmitter is just the thing you need to jumpstart your recreational espionage efforts.”Hermits need not apply.",
... | 1,760,374,365.341686 | ||
https://hackaday.com/2018/05/18/autonomous-agribots-for-agriculture/ | Autonomous Agribots For Agriculture | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"farm",
"gardening",
"robot"
] | For his Hackaday Prize entry, [TegwynTwmffat] is going all-in on autonomous robotics. No, it’s not a self-driving car with highly advanced features such as cruise control with lane-keeping. This is an autonomous robot that’s capable of driving itself.
It’s a robot built for agriculture
, and relative to other autonomou... | 16 | 8 | [
{
"comment_id": "4565833",
"author": "RoGeorge",
"timestamp": "2018-05-18T19:37:14",
"content": "Definitely knows where it’s heading!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4565901",
"author": "The Gambler",
"timestamp": "2018-05-18T20:28:59",
... | 1,760,374,364.429951 | ||
https://hackaday.com/2018/05/18/insight-brings-new-tech-to-mars/ | InSight Brings New Tech To Mars | Tom Nardi | [
"Current Events",
"Hackaday Columns",
"Slider",
"Space"
] | [
"cubesat",
"InSight",
"jpl",
"mars",
"nasa",
"phoenix"
] | Unless you’ve got your ear on the launch pad so to speak, you might not be aware that
humanity just launched a new envoy towards the Red Planet
. Estimated to touch down in Elysium Planitia on November 26th, the InSight lander is relatively low-key as far as interplanetary missions go. Part of the NASA’s “Discovery Pro... | 18 | 9 | [
{
"comment_id": "4565336",
"author": "Ostracus",
"timestamp": "2018-05-18T17:19:20",
"content": "Interesting just how tailored sensors are to their platform. Just think if that defective sensor could be easily swapped out, even with testing.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,364.378162 | ||
https://hackaday.com/2018/05/18/layerone-infosec-conference-returns-next-weekend/ | LayerOne InfoSec Conference Returns Next Weekend | Mike Szczys | [
"cons"
] | [
"conference",
"demo party",
"demoscene",
"demoscene board",
"InfoSec",
"layerone"
] | This year’s LayerOne conference is May 25-27 in Los Angeles and Hackaday will be there! Hurry and
get your ticket now
as today is the last day for pre-registration.
As the InfoSec community takes over the Pasadena Hilton next weekend you’ll wish you had a week instead of just three days to take part in
all that is offe... | 1 | 1 | [
{
"comment_id": "4565235",
"author": "Ren",
"timestamp": "2018-05-18T16:13:21",
"content": "They have a cool logo.",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,374,365.379134 | ||
https://hackaday.com/2018/05/18/arduino-just-introduced-an-fpga-board-announces-debugging-and-better-software/ | Arduino Just Introduced An FPGA Board, Announces Debugging And Better Software | Brian Benchoff | [
"Arduino Hacks",
"Featured",
"News",
"Slider"
] | [
"arduino",
"Arduino Uno",
"Arduino Vidor",
"ESP32",
"fpga",
"MKR",
"MKR1010",
"MKR1500",
"u-blox"
] | Today ahead of the Bay Area Maker Faire, Arduino has
announced a bevy of new boards
that bring modern features and modern chips to the Arduino ecosystem.
Most ambitious of these new offerings is a board that combines a fast ARM microcontroller, WiFi, Bluetooth, and an FPGA. All this is wrapped in a package that provide... | 139 | 29 | [
{
"comment_id": "4565075",
"author": "Pee Zee",
"timestamp": "2018-05-18T15:12:40",
"content": "Arduino? Really? Those guys are still around? I thought they would have gone the way of PIC and shut down by now. Is this their last gasp? Don’t they know they have been beaten and we all use Intel microc... | 1,760,374,366.185309 | ||
https://hackaday.com/2018/05/18/snowboard-and-skateboard-so-lit-you-can-wipe-out-and-still-look-good/ | Snowboard And Skateboard So Lit You Can Wipe Out And Still Look Good | Bob Baddeley | [
"LED Hacks"
] | [
"Adafruit Feather",
"arduino nano",
"bluetooth",
"led",
"LED snowboard",
"mit app inventor",
"skateboard",
"snowboard"
] | [Nate] has made snowboarding cool with his Bluetooth connected board. Using 202 WS2812 LEDs carefully wrapped around the edge of the board and sealed with a conformal coating, it’s bright and waterproof. It’s controlled with an Arduino Nano and a Bluetooth classic board, as well as a large swappable USB battery bank; h... | 5 | 3 | [
{
"comment_id": "4564975",
"author": "Mike",
"timestamp": "2018-05-18T14:19:54",
"content": "i am curious to know how his battery packs last in the long term. Anyone who snowboards can tell you how much vibration the board sees in just one run.",
"parent_id": null,
"depth": 1,
"replies":... | 1,760,374,364.777417 | ||
https://hackaday.com/2018/05/20/stretching-the-definitions-of-a-custom-ic/ | Stretching The Definitions Of A Custom IC | Brian Benchoff | [
"hardware"
] | [
"maker faire",
"Maker Faire Bay Area",
"zGlue"
] | Maker Faire is the nexus for all things new and exciting. At the Bay Area Maker Faire this weekend,
zGlue introduced a new platform that stretches the definition of custom ICs
. Is this custom silicon? No, not at all. zGlue is a platform allowing anyone to take off-the-shelf ICs and package them into a single module, a... | 31 | 10 | [
{
"comment_id": "4569385",
"author": "Osgeld",
"timestamp": "2018-05-20T17:51:18",
"content": "how is adding a pcb using less pcb",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4569490",
"author": "Dave Davidson",
"timestamp": "2018-05-20T19:... | 1,760,374,365.048259 | ||
https://hackaday.com/2018/05/20/internet-of-laundry-let-the-esp8266-watch-your-dirty-drawers-get-clean/ | Internet Of Laundry — Let The ESP8266 Watch Your Dirty Drawers Get Clean | Al Williams | [
"Arduino Hacks",
"internet hacks"
] | [
"accelerometer",
"dryer",
"IoT",
"laundry",
"mqtt",
"node-red",
"pushover",
"raspberry pi",
"washing machine"
] | When you think of world-changing devices, you usually don’t think of the washing machine. However, making laundry manageable changed not only how we dress but how much time people spent getting their clothes clean. So complaining about how laborious our laundry is today would make someone from the 1800s laugh. Still, w... | 31 | 8 | [
{
"comment_id": "4569289",
"author": "BillyTheGator",
"timestamp": "2018-05-20T16:09:25",
"content": "Does it use a needlessly complex framework?Do I have to installed Framble to compile Bramble, to enable Druffle to fluffle the socksifier?What the IoT has taught me, is that unless you have 100’s of... | 1,760,374,364.864755 | ||
https://hackaday.com/2018/05/20/tiny-sideways-tetris-on-a-business-card/ | Tiny Sideways Tetris On A Business Card | Donald Papp | [
"ATtiny Hacks",
"Software Hacks"
] | [
"attiny85",
"business card",
"oled",
"pcb",
"ssd1306",
"tetris"
] | Everyone recognizes Tetris, even when it’s
tiny Tetris played sideways on a business card
. [Michael Teeuw] designed these PCBs and they sport small OLED screens to display contact info. The Tetris game is actually a hidden easter egg; a long press on one of the buttons starts it up.
It turns out that getting a playabl... | 15 | 5 | [
{
"comment_id": "4568974",
"author": "Derpatron9000",
"timestamp": "2018-05-20T11:09:39",
"content": "Tumblr, seriously?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4569120",
"author": "TGT",
"timestamp": "2018-05-20T13:40:20",
"co... | 1,760,374,365.129437 | ||
https://hackaday.com/2018/05/20/video-of-the-arduino-fpga-board-demo-at-maker-faire/ | Video Of The Arduino FPGA Board Demo At Maker Faire | Brian Benchoff | [
"Arduino Hacks",
"Featured",
"News",
"Slider"
] | [
"arduino",
"Arduino MKR Vidor 4000",
"fpga"
] | This week, Arduino announced a lot of new hardware including
an exceptionally interesting FPGA development board
aimed at anyone wanting to dip their toes into the seas of VHDL and developing with programmable logic. We think it’s the most interesting bit of hardware Arduino has released since their original dev board,... | 98 | 26 | [
{
"comment_id": "4568732",
"author": "codifies",
"timestamp": "2018-05-20T08:29:59",
"content": "if you can program that with the PCI-E interface, I might put up with a usb wifi stick on my laptop…. It’s a shame Intel is unlikely to open source the tool chain for these FPGA’s, using the IceStorm too... | 1,760,374,365.610196 | ||
https://hackaday.com/2018/05/19/scrapped-motors-dont-care-about-direction/ | Scrapped Motors Don’t Care About Direction | Brian McEvoy | [
"hardware",
"Teardown"
] | [
"ac",
"controller",
"found",
"hdd",
"motor",
"resources",
"salvage",
"scrap",
"transformer"
] | Spinners built into games of chance like roulette or tabletop board games stop on a random number after being given a good spin. There is no trick, but they eventually rest because of friction, no matter how hard your siblings wind up for a game-winning turn. What if the spinning continued forever and there was no prog... | 18 | 7 | [
{
"comment_id": "4568547",
"author": "NiHaoMike",
"timestamp": "2018-05-20T05:17:12",
"content": "With some experimentation, it’s possible to add a capacitor to allow it to self start.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4568821",
"author"... | 1,760,374,365.960467 | ||
https://hackaday.com/2018/05/19/friend-in-need-gets-junk-bin-pc-for-cramped-quarters/ | Friend In Need Gets Junk Bin PC For Cramped Quarters | Dan Maloney | [
"computer hacks",
"Misc Hacks"
] | [
"all-in-one",
"hackaday.io",
"junk bin",
"laptop",
"paying it forward",
"pc",
"Wintel CX-W8"
] | If you doubt the power of the Hackaday community, check this one out. Stalwart reader and tipster [starhawk] has pitched in to help a friend in need, someone he met through Hackaday.io. Seems this friend’s current living arrangements are somewhat on the cramped side, and while he’s in need of a PC, even a laptop would ... | 29 | 9 | [
{
"comment_id": "4568357",
"author": "Shawn",
"timestamp": "2018-05-20T02:23:17",
"content": "Seems to be a great guy, and a smart build.But if a laptop is too large for the space, one would think a keyboard and a tablet are too big for the space too.And yes, the junk bin seems awesome :)",
"par... | 1,760,374,365.677643 | ||
https://hackaday.com/2018/05/19/its-not-morning-until-green-oclock/ | It’s Not Morning Until Green O’clock | Kristina Panos | [
"Arduino Hacks",
"LED Hacks"
] | [
"arduino nano",
"kids",
"LED clock",
"leds",
"sleep loss"
] | [JohnathonT] has a two-year-old who can’t reliably tell time just yet. Every morning, he gets up before the rooster crows and barges into his parents’ room, ready to face the day.
In an effort to catch a few more Zs,
[JohnathonT] built a simple but sanity-saving clock that tells time in a visual, kid-friendly way
. Sur... | 13 | 7 | [
{
"comment_id": "4568186",
"author": "ameyring",
"timestamp": "2018-05-19T23:35:36",
"content": "A few years back I built each of my kids a visual indicator that shows LEDs turning on one by one during the night and a large light (group of LEDs) is reached around 7 am to let the kids know it’s time ... | 1,760,374,365.72739 | ||
https://hackaday.com/2018/05/18/open-source-calculator-teaches-us-about-quality-documentation/ | Open Source Calculator Teaches Us About Quality Documentation | Kerry Scharfglass | [
"handhelds hacks",
"hardware",
"Slider"
] | [
"graphing calculator",
"Numworks",
"open source hardware"
] | Graphing calculators are one of those funny markets that never seem to change. Standardized testing has created a primordial stew of regulatory capture in which ancient technology thrives at modern retail prices while changing little. The
NumWorks calculator
certainly isn’t the first competitor to challenge the Texas I... | 80 | 16 | [
{
"comment_id": "4564516",
"author": "jpa",
"timestamp": "2018-05-18T11:27:45",
"content": "Huh, I took a brief look at NumWorks earlier but missed the hardware docs. They’re truly awesome!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4564520",
"author":... | 1,760,374,365.841572 | ||
https://hackaday.com/2018/05/18/five-steps-to-tensorflow-on-the-raspberry-pi/ | Five Steps To TensorFlow On The Raspberry Pi | Al Williams | [
"Raspberry Pi",
"Slider"
] | [
"Bazel",
"raspberry pi",
"tensorflow"
] | If you have about 10 hours to kill, you can use [Edje Electronics’s] instructions to
install TensorFlow on a Raspberry Pi 3
. In all fairness, the amount of time you’ll have to babysit is about an hour. The rest of the time is spent building things and you don’t need to watch it going. You can see a video on the steps ... | 26 | 10 | [
{
"comment_id": "4564150",
"author": "Max Siegieda (@CampGareth)",
"timestamp": "2018-05-18T08:36:38",
"content": "Pro tip, on recent ubuntu versions (16.04 up) you can enable zram (compressed swap in ram or ‘compressed RAM’) with a single command, `apt-get install zram-config`. I don’t know whether... | 1,760,374,365.904187 | ||
https://hackaday.com/2018/05/17/automatic-mtg-card-sorter-separates-rags-from-riches/ | Automatic MtG Card Sorter Separates Rags From Riches | Kristina Panos | [
"Raspberry Pi"
] | [
"amazon web services",
"AWS Rekognition",
"lego",
"magic the gathering",
"MtG",
"Raspberry Pi 3",
"sorter"
] | Like many of us, [Michael Portera] was an avid trading card collector as a kid. Also like many of us, life got in the way, and the collections sat ignored in boxes until our mothers threatened to get rid of them (or skipped the threat altogether and sold them at a garage sale for next to nothing).
[Michael] was recentl... | 4 | 3 | [
{
"comment_id": "4564606",
"author": "Dan",
"timestamp": "2018-05-18T12:18:37",
"content": "So is hackster.io like a competitor to hackaday.io? It’s the first I’ve heard of them, but it seems like the goals of the two platforms are pretty similar.",
"parent_id": null,
"depth": 1,
"replie... | 1,760,374,365.997994 | ||
https://hackaday.com/2018/05/17/diy-ssr-for-mains-switching/ | DIY SSR For Mains Switching | Anool Mahidharia | [
"hardware"
] | [
"constant current source",
"MOC3063M",
"power brick",
"relay",
"solid state relay",
"ssr",
"TRIAC",
"wall wart"
] | Typical power strips have their sockets tightly spaced. This makes it cumbersome to connect devices whose wall warts or power bricks are bulky — you end up losing an adjoining socket or two. And if the strip has a single power switch, you cannot turn off individual devices without unplugging them.
Planning to tackle bo... | 35 | 9 | [
{
"comment_id": "4563008",
"author": "jonsmirl",
"timestamp": "2018-05-18T02:13:09",
"content": "Simplest way to do power metering is with something like a ATM90E32.Check out sinewaving dimming. With sinewave dimming you use a pair of FETs to manipulate the AC wave form.It will cost on the order of ... | 1,760,374,366.393465 | ||
https://hackaday.com/2018/05/17/suitcase-computer-reborn-with-raspberry-pi-inside/ | Suitcase Computer Reborn With Raspberry Pi Inside | Dan Maloney | [
"Raspberry Pi",
"Retrocomputing"
] | [
"CP/M",
"keyboard emulator",
"Osborne 1",
"raspberry pi",
"retrocomputer",
"z80"
] | Fun fact, the Osborne 1 debuted with a price tag equivalent to about $5,000 in today’s value. With a gigantic 9″ screen and twin floppy drives (for making mix tapes, right?) the real miracle of the machine was its portability, something unheard of at the time. The retrocomputing trend is to lovingly and carefully resto... | 48 | 17 | [
{
"comment_id": "4562627",
"author": "Miles Archer",
"timestamp": "2018-05-17T23:10:42",
"content": "It would have dreamed of getting Unix running on Z80 CPM machine at the time. It would have been amazing, Consider 8K or maybe 16K of RAM and no hard disk. Now we’re trying to get CPM to run on littl... | 1,760,374,366.960765 | ||
https://hackaday.com/2018/05/17/no-battery-hd-video-streaming-does-it-with-backscatter/ | No-Battery HD Video Streaming Does It With Backscatter | Steven Dufresne | [
"Video Hacks"
] | [
"backscatter",
"low power",
"streaming camera",
"streaming video",
"video"
] | What if Google Glass didn’t have a battery? That’s not too far fetched. This
battery-free HD video streaming camera
could be built into a pair of eyeglass frames to stream HD video to a nearby phone or other receiver using no bulky batteries or external power source. Researchers at the University of Washington are usin... | 49 | 12 | [
{
"comment_id": "4562263",
"author": "Jerry",
"timestamp": "2018-05-17T20:30:41",
"content": "Sweet..",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4562282",
"author": "Ostracus",
"timestamp": "2018-05-17T20:42:50",
"content": "“Backscatter involv... | 1,760,374,366.485144 | ||
https://hackaday.com/2018/05/17/the-solid-state-weather-station/ | The Solid State Weather Station | Anool Mahidharia | [
"The Hackaday Prize"
] | [
"3d printing",
"anemometer",
"ESP32",
"inertial",
"LoRa",
"LoRaWAN",
"mpu-9150",
"mpu6050",
"Rain sensor",
"weather",
"wind sensor"
] | Building personal weather stations has become easier now than ever before, thanks to all the improvements in sensors, electronics, and prototyping techniques. The availability of cheap networking modules allows us to make sure these IoT devices can transmit their information to public databases, thereby providing local... | 60 | 14 | [
{
"comment_id": "4562082",
"author": "Jason J. Gullickson",
"timestamp": "2018-05-17T18:41:12",
"content": "This is a really cool project.One question I have about several weather stations projects I’ve seen is in regard to battery chemistry. Most of them use some form of lipo, but how do these per... | 1,760,374,366.711883 | ||
https://hackaday.com/2018/05/17/circuit-vr-current-mirrors/ | Circuit VR: Current Mirrors | Al Williams | [
"Engineering"
] | [
"current mirror",
"transistor",
"wilson mirror"
] | Last time we looked at Spice models of a current sink. We didn’t look at some of the problems involved with a simple sink, and for many practical applications, they are perfectly adequate. However, you’ll often see more devices used to improve the characteristics of the current sink or source. In particular, a common d... | 18 | 7 | [
{
"comment_id": "4561917",
"author": "snarkysparky",
"timestamp": "2018-05-17T17:16:25",
"content": "I have used them to move an analog signal from ground reference to + rail reference and vs versa. Wilson current mirror rules.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,374,366.773235 | ||
https://hackaday.com/2018/05/17/the-pros-and-cons-of-microcontrollers-for-boost-converters/ | The Pros And Cons Of Microcontrollers For Boost Converters | Dan Maloney | [
"Microcontrollers",
"Misc Hacks"
] | [
"boost converter",
"comparator",
"dc-dc",
"microcontroller",
"mosfet",
"op-amp",
"switch mode power supply",
"SWMP"
] | It never fails — we post a somewhat simple project using a microcontroller and someone points out that it could have been accomplished better with a 555 timer or discrete transistors or even a couple of vacuum tubes. We welcome the critiques, of course; after all, thoughtful feedback is the point of the comment section... | 37 | 17 | [
{
"comment_id": "4561715",
"author": "Morgauxo",
"timestamp": "2018-05-17T15:33:33",
"content": "That said, if your Boost Converter is built around a Raspberry Pi and an ADC chip you are definitely doing it wrong.Yes… you know who you are. I’m calling you out on that!",
"parent_id": null,
"d... | 1,760,374,367.037166 | ||
https://hackaday.com/2018/05/17/review-fg-100-dds-function-generator/ | Review: FG-100 DDS Function Generator | Jenny List | [
"Featured",
"Reviews",
"Tool Hacks"
] | [
"atmega328",
"dds",
"FG-100",
"function generator"
] | I don’t have a signal generator, or more specifically I don’t have a low frequency signal generator or a function generator. Recently this fact collided with my innocent pleasure in buying cheap stuff of sometimes questionable quality. A quick search of your favourite e-commerce site and vendor of voice-controlled inte... | 44 | 17 | [
{
"comment_id": "4561622",
"author": "PirateLabs",
"timestamp": "2018-05-17T14:17:10",
"content": "Thanks Jenny. I like it when you buy junk so we don’t have to, ha ha. I also like how every once in a while, you discover something decent for not much money.",
"parent_id": null,
"depth": 1,... | 1,760,374,366.861781 | ||
https://hackaday.com/2018/05/17/open-gaming-to-everyone-with-a-controller-meant-to-be-hacked/ | Open Gaming To Everyone With A Controller Meant To Be Hacked | Roger Cheng | [
"Games",
"Xbox Hacks"
] | [
"custom controller",
"gaming",
"gaming controller",
"physical disability"
] | Gaming controllers have come a long way from an Atari 2600’s single button and digital joystick. As games grew more sophisticated, so did the controllers. This development had a dark side – controllers’ growing complexity have made it increasingly difficult for different-abled bodies to join in the fun. Microsoft has e... | 35 | 7 | [
{
"comment_id": "4561547",
"author": "Xerxes3rd",
"timestamp": "2018-05-17T13:22:17",
"content": "Reading the article, they even took special care to design the product packaging so that it’s easy to open & remove the product. So awesome of Microsoft to do this!",
"parent_id": null,
"depth"... | 1,760,374,367.223154 | ||
https://hackaday.com/2018/05/17/long-pcb-shows-effects-of-ludicrous-speed/ | Long PCB Shows Effects Of Ludicrous Speed | Al Williams | [
"Tool Hacks"
] | [
"oscilloscope",
"reflection",
"transmission line"
] | Transmission lines can seem like magic. When you make use of them it seems strange that a piece of wire can block or pass certain frequencies. It is less common to use transmission lines with pulses and typically your circuit’s transmission line behavior isn’t all that significant. That is, until you have to move a sig... | 9 | 3 | [
{
"comment_id": "4561172",
"author": "John",
"timestamp": "2018-05-17T09:02:01",
"content": "A schematic would have been nice. I stuck with it until about half way then he seemed to be saying he is driving the chip output into a direct short through some PCB tracks and still getting voltage without ... | 1,760,374,367.141881 | ||
https://hackaday.com/2018/05/16/arduino-star-tracker-raises-the-bar/ | Arduino Star Tracker Raises The Bar | Tom Nardi | [
"digital cameras hacks",
"Space"
] | [
"28BYJ-48",
"arduino nano",
"barn door tracker",
"uln2003"
] | Proving that astrophotography doesn’t have to break the bank,
[Gerald Gattringer] has recently documented his DIY “barn door” style star tracker
which is built almost entirely from scratch. Short of the Arduino and stepper motor, all the components were either made by hand or are standard hardware store finds.
The buil... | 15 | 5 | [
{
"comment_id": "4561442",
"author": "gurk",
"timestamp": "2018-05-17T11:35:24",
"content": "i tried the same few years ago, exact same setup but from wood,i never got the bend on the threaded rod just right. my junk bin continued this project later",
"parent_id": null,
"depth": 1,
"repl... | 1,760,374,367.094013 | ||
https://hackaday.com/2018/05/16/location-sharing-with-google-home/ | Location Sharing With Google Home | Bryan Cockfield | [
"google hacks"
] | [
"api",
"Assistant",
"data",
"google",
"google maps",
"home",
"IFTTT",
"nodered",
"raspberry pi",
"Raspberry Pi Zero"
] | With Google’s near-monopoly on the internet, it can be difficult to get around in cyberspace without encountering at least some aspect of this monolithic, data-gathering giant. It usually takes a concerted effort, but it is technically possible to do. While [Mat] is still using some Google products, he has at least fig... | 13 | 8 | [
{
"comment_id": "4561005",
"author": "M B",
"timestamp": "2018-05-17T06:18:44",
"content": "“he has at least figured out a way to get Google Home to work with location data without actually sharing that data with Google”“At the same time, I’m passing the needed coordinates to the Google Maps API lin... | 1,760,374,367.885305 | ||
https://hackaday.com/2018/05/16/prop-wwii-machine-gun-courtesy-of-home-depot/ | Prop WWII Machine Gun Courtesy Of Home Depot | Tom Nardi | [
"classic hacks",
"Weapons Hacks"
] | [
"machine gun",
"military",
"prop building",
"world war II"
] | There’s perhaps nothing worse than working on a project and realizing you don’t have the part you need to complete it. You look through all your stuff twice, maybe three times, on the off chance it’s hiding somewhere. Perhaps even reach out to a few nearby friends to see if they might have something you can use. Forget... | 7 | 6 | [
{
"comment_id": "4560540",
"author": "cbob",
"timestamp": "2018-05-16T23:49:22",
"content": "Not too bad. At a quick glance, the only “off” part seems to be the cooling fins. (5k$ for a non-working one, makes the fins look good enough) And of course, Ian’s done a vidhttps://www.youtube.com/watch?v=c... | 1,760,374,368.021105 | ||
https://hackaday.com/2018/05/16/neural-networks-using-doom-level-creator-like-its-1993/ | Neural Networks Using Doom Level Creator Like It’s 1993 | Drew Risinger | [
"Games",
"Slider"
] | [
"ai",
"artificial intelligence",
"artificial neural network",
"doom",
"neural net",
"neural network",
"video game",
"video games"
] | Readers of a certain vintage will remember the glee of building your own levels for DOOM. There was something magical about carefully crafting a level and then dialing up your friends for a death match session on the new map. Now computers scientists are getting in on that fun in a new way. Researchers from Politecnico... | 12 | 4 | [
{
"comment_id": "4560281",
"author": "Ostracus",
"timestamp": "2018-05-16T20:41:29",
"content": "Kind of hard to put “fun” into A.I. terms.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4560341",
"author": "r4m0n",
"timestamp": "2018-05-16T2... | 1,760,374,368.488572 | ||
https://hackaday.com/2018/05/16/flood-fault-circuit-interrupter-could-save-lives/ | Flood Fault Circuit Interrupter Could Save Lives | Kristina Panos | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"AFCI",
"eeprom",
"float switch",
"flood",
"GFCI"
] | What if you didn’t have to risk your life to disconnect the power during a catastrophic storm? That’s a question many people in Houston were asking themselves as they watched water from Hurricane Harvey and other storms surge through the streets, swell in the gutters, and flood their homes.
Among these Houstonians were... | 29 | 7 | [
{
"comment_id": "4560130",
"author": "dlcarrier",
"timestamp": "2018-05-16T18:46:43",
"content": "I’d probably keep it simple and use a mechanical linkage to trip a service disconnect breaker when a float reaches a specific height, likely below the height of the outlets in the house. A float design... | 1,760,374,368.559979 | ||
https://hackaday.com/2018/05/16/retrotechtacular-the-saturn-propulsion-system/ | Retrotechtacular: The Saturn Propulsion System | Jenny List | [
"Retrotechtacular"
] | [
"apollo",
"moon",
"Moon landing",
"rocket",
"rocket engine",
"space"
] | “We choose to go to the Moon in this decade and do the other things, not because they are easy, but because they are hard; because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one we i... | 33 | 9 | [
{
"comment_id": "4560036",
"author": "LOL",
"timestamp": "2018-05-16T17:33:36",
"content": "https://imgs.xkcd.com/comics/space_launch_system.png",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4561621",
"author": "TGT",
"timestamp": "2018-05-1... | 1,760,374,368.721928 | ||
https://hackaday.com/2018/05/16/welcome-to-the-internet-of-hamsters/ | Welcome To The Internet Of Hamsters | Tom Nardi | [
"internet hacks",
"Raspberry Pi"
] | [
"IoT",
"mqtt",
"python",
"raspberry pi",
"thingspeak"
] | It was only a matter of time. Everything else is getting its data logged and reported to the Internet for detailed analysis, so why should our rodents be any different? The cover story is that [Nicole Horward]
hooked her pet hamster Harold up to the web
because she wanted to see if he was getting as much exercise as he... | 8 | 4 | [
{
"comment_id": "4559908",
"author": "Thinkerer",
"timestamp": "2018-05-16T16:11:26",
"content": "Cats would be much simpler. Flatline for 23.5 hours and mad racing around for the rest. Usually in the middle of the night.",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,374,368.768921 | ||
https://hackaday.com/2018/05/16/3d-printering-when-an-stl-file-is-not-quite-right/ | 3D Printering: When An STL File Is Not Quite Right | Donald Papp | [
"3d Printer hacks",
"Hackaday Columns",
"Original Art"
] | [
"3d builder",
"3d printing",
"blender",
"cad",
"design",
"ideamaker",
"modeling",
"openscad",
"prototyping",
"stl",
"tinkercad",
"TWANG"
] | STL files are everywhere. When there’s something to 3D print, it’s probably going to be an STL. Which, as long as the model is good just as it is, is no trouble at all. But sooner or later there will be a model that isn’t
quite
right in some way and suddenly project progress hits a snag.
When models interface with othe... | 49 | 14 | [
{
"comment_id": "4559714",
"author": "mrehorst",
"timestamp": "2018-05-16T14:13:27",
"content": "Fusion360 can convert a mesh to a BRep which can then be modified as needed or even added into a completely different design. See:https://knowledge.autodesk.com/support/fusion-360/learn-explore/caas/sfd... | 1,760,374,369.067474 | ||
https://hackaday.com/2018/05/16/ikea-lamp-with-raspberry-pi-as-the-smartest-bulb-in-the-house/ | IKEA Lamp With Raspberry Pi As The Smartest Bulb In The House | Roger Cheng | [
"Android Hacks",
"Raspberry Pi",
"Slider",
"Video Hacks"
] | [
"accelerometer",
"Android Things",
"ikea",
"ikea hacks",
"ikea lamp",
"laser projector",
"video projection"
] | We love to hack IKEA products, marvel at Raspberry Pi creations, and bask in the glow of video projection. [Nord Projects] combined these favorite things of ours into
Lantern
, a name as minimalist as the IKEA lamp it uses. But the result is nearly magic.
The key component in this build is a
compact laser-illuminated v... | 27 | 4 | [
{
"comment_id": "4559490",
"author": "SlurmMcKenzie",
"timestamp": "2018-05-16T11:43:18",
"content": "i have read about this on other sites as well today, and while the headline on hackaday is definitely better than most of the other sites, this build is actually not so much about the IKEA lamp as o... | 1,760,374,368.970139 | ||
https://hackaday.com/2018/05/16/gentle-electric-eel/ | Gentle Electric Eel | Brian McEvoy | [
"Robots Hacks"
] | [
"artificial muscle",
"biology",
"eel",
"marine",
"robotics",
"submarine",
"swim",
"underwater"
] | It’s no shock that electric eels get a bad rap for being scary creatures. They are slithery fleshy water snakes who can call down lightning. Biologists and engineers at the University of California had something else in mind when they designed
their electric eel
. Instead of hunting fish, this one swims harmlessly alon... | 22 | 3 | [
{
"comment_id": "4559068",
"author": "Phrewfuf",
"timestamp": "2018-05-16T08:18:11",
"content": "> bad wrapBad rep. Rep as in short for reputation. Not wrap as in fast food item. Or as in decorative or protective cover.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comme... | 1,760,374,369.181813 | ||
https://hackaday.com/2018/05/15/case-mod-takes-all-in-one-printer-to-the-next-level/ | Case Mod Takes “All In One” Printer To The Next Level | Tom Nardi | [
"computer hacks",
"hardware"
] | [
"atx",
"Case mod",
"desktop",
"printer"
] | You’ve seen printers with scanners in them, printers with copiers in them, even ones with the ancient technology known as “facsimile” built-in. But have you ever seen a printer with a full gaming computer built into it? No? Well, you still haven’t, technically. There’s no printer to be had anymore inside this re-purpos... | 14 | 7 | [
{
"comment_id": "4558814",
"author": "Ostracus",
"timestamp": "2018-05-16T05:51:22",
"content": "Make one that plays Doom.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4559495",
"author": "Toast",
"timestamp": "2018-05-16T11:47:49",
... | 1,760,374,369.12357 | ||
https://hackaday.com/2018/05/15/dark-field-microscopy-on-the-cheap-with-a-pcb/ | Dark Field Microscopy On The Cheap With A PCB | Al Williams | [
"Tool Hacks"
] | [
"dark field microscope",
"microscope"
] | It might seem like a paradox that you want a dark field to see things with an expensive microscope.
As [IMSAI Guy]
explains
, a dark field microscope doesn’t make the subject dark. It makes the area surrounding the subject dark. After selling his expensive microscope, he found he missed having the capability, so he dec... | 4 | 2 | [
{
"comment_id": "4559833",
"author": "Don Thompson",
"timestamp": "2018-05-16T15:26:42",
"content": "Great Job! I don’t have the ability to make the printed circuit but will be thinking about a solution to do that. I wonderwhat the difference between a dark field microscope and a metallurgic microsc... | 1,760,374,369.285899 | ||
https://hackaday.com/2018/05/15/lucky-cat-pov-display-ditches-the-waving-and-windmills-out-of-control/ | Lucky Cat POV Display Ditches The Waving And Windmills Out Of Control | Richard Baguley | [
"classic hacks"
] | [
"ESP8266",
"lucky cat",
"Neko",
"POV",
"wemos d1 mini"
] | If you’ve been in a Japanese restaurant, you’ve probably seen a maneki-neko, the lucky cat charm, where a cat welcomes you with a beckoning arm. It’s considered to bring good luck, but we’re not sure if [Martin Fitzpatrick] is
pushing his luck with this Lucky Cat POV display
. He hacked one of the figurines so the arm ... | 10 | 5 | [
{
"comment_id": "4558266",
"author": "coolstuff1414",
"timestamp": "2018-05-16T00:49:44",
"content": "Fantastic",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4558778",
"author": "None",
"timestamp": "2018-05-16T05:26:13",
"content": "LOL, good ide... | 1,760,374,369.336237 | ||
https://hackaday.com/2018/05/15/hawkeye-the-3d-printed-tourbillon-movement/ | Hawkeye, The 3D-Printed Tourbillon Movement | Dan Maloney | [
"3d Printer hacks",
"clock hacks"
] | [
"axes",
"click spring",
"clock",
"escapement",
"gear train",
"movement",
"timepiece",
"tourbillon",
"watch"
] | As if building tiny mechanisms with dozens of moving parts that all need to mesh together perfectly to work weren’t enough, some clock and watchmakers like to put their horology on hard mode with tourbillon movements. Tourbillons add multiple axes to the typical gear trains in an attempt to eliminate errors caused by t... | 10 | 4 | [
{
"comment_id": "4557879",
"author": "Jay Lowe",
"timestamp": "2018-05-15T20:28:56",
"content": "And here I can’t even get that gear heart thing to print right…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4557903",
"author": "GvTT",
"timestamp": "20... | 1,760,374,369.227734 | ||
https://hackaday.com/2018/05/15/reflowduino-put-that-toaster-oven-to-good-use/ | Reflowduino: Put That Toaster Oven To Good Use | Ben James | [
"Arduino Hacks",
"cooking hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"arduino",
"bluetooth",
"control",
"open source",
"oven",
"pid",
"reflow",
"reflowduino",
"toaster"
] | There are few scenes in life more moving than the moment the solder paste melts as the component slides smoothly into place. We’re willing to bet the only reason you don’t have a reflow oven is the cost. Why wouldn’t you want one? Fortunately, the vastly cheaper DIY route has become a whole lot easier since the birth o... | 9 | 3 | [
{
"comment_id": "4557968",
"author": "HAT",
"timestamp": "2018-05-15T21:42:18",
"content": "Course to assemble the reflowduino, I need a reflow oven….",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4566632",
"author": "The Mr Murray",
"timest... | 1,760,374,369.393081 | ||
https://hackaday.com/2018/05/15/richard-feynman-a-life-of-curiosity-and-science/ | Richard Feynman: A Life Of Curiosity And Science | Steven Dufresne | [
"Biography",
"Hackaday Columns",
"Original Art",
"Slider"
] | [
"Challenger",
"feynman diagram",
"Joan Feynman",
"Manhattan Project",
"mathematics",
"physics",
"quantum physics",
"Richard Feynman",
"Space Shuttle"
] | It was World War II and scientists belonging to the Manhattan Project worked on calculations for the atomic bomb. Meanwhile, in one of the buildings, future Nobel Prize winning theoretical physicist Richard Feynman was cracking the combination lock on a safe because doing so intrigued him. That’s as good a broad summar... | 53 | 15 | [
{
"comment_id": "4557597",
"author": "aegjio",
"timestamp": "2018-05-15T17:11:13",
"content": "For me more important person is Pope John Paul II because he single-handedly defeated communism in Poland.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4557833",... | 1,760,374,371.849748 | ||
https://hackaday.com/2018/05/15/direct-cnc-control-with-the-raspberry-pi/ | Direct CNC Control With The Raspberry Pi | Tom Nardi | [
"cnc hacks",
"Raspberry Pi"
] | [
"cnc",
"raspberry pi",
"stepper",
"stepstick"
] | If you’re building a CNC router, laser cutter, or even 3D printer, you’ll usually be looking at a dedicated controller. This board takes commands from a computer, often in the form of G-Code, and interprets that into movement commands to the connected stepper motors. Historically this has been something of a necessary ... | 46 | 11 | [
{
"comment_id": "4557486",
"author": "ehud42",
"timestamp": "2018-05-15T15:35:14",
"content": "Does the Pi support a real-time thread? or is it limited by random latency issues causing the code to mis-time some steps and jam/stall the stepper?",
"parent_id": null,
"depth": 1,
"replies": ... | 1,760,374,371.373334 | ||
https://hackaday.com/2018/05/15/retro-computer-badge-for-hackaday-belgrade-has-everything-you-wished-for-back-in-the-day/ | Retro Computer Badge For Hackaday Belgrade Has Everything You Wished For Back In The Day | Mike Szczys | [
"cons",
"Featured",
"Retrocomputing",
"Slider"
] | [
"badge",
"badgelife",
"Hackaday Belgrade",
"Hackaday Belgrade 2018",
"retro computer",
"retro computing"
] | The hardware badge for the Hackaday Belgrade conference is a Retro Computer that you wear around your neck. I have one in my hands and it’s truly a work of art. It’s beautiful, it’s fun to play with, and it will be an epic platform for a glorious weekend of badge hacking! Check out the first look video, then join me be... | 57 | 16 | [
{
"comment_id": "4557363",
"author": "deshipu",
"timestamp": "2018-05-15T14:46:08",
"content": "So, um, where do I put my name on it so that other people will know who I am?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4557471",
"author": "Ren",
... | 1,760,374,371.478261 | ||
https://hackaday.com/2018/05/15/diy-pi-zero-pentesting-tool-keeps-it-cheap/ | DIY Pi Zero Pentesting Tool Keeps It Cheap | Tom Nardi | [
"Raspberry Pi",
"Security Hacks",
"Slider",
"Tool Hacks"
] | [
"covert",
"hak5",
"key injection",
"pentesting",
"PiBunny",
"rspiducky"
] | It’s a story as old as time: hacker sees cool tool, hacker recoils in horror at the price of said tool, hacker builds their own version for a fraction of the price. It’s the kind of story that we love here at Hackaday, and has been the impetus for countless projects we’ve covered. One could probably argue that, if hack... | 14 | 4 | [
{
"comment_id": "4557031",
"author": "barry99705",
"timestamp": "2018-05-15T11:44:11",
"content": "That’s pretty cool.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4557210",
"author": "Cool project",
"timestamp": "2018-05-15T13:17:38",
"content":... | 1,760,374,371.177916 | ||
https://hackaday.com/2018/05/15/windows-for-workgroups-3-11-in-2018/ | Windows For Workgroups 3.11 In 2018 | Eric Evenchick | [
"classic hacks"
] | [
"covox speech thing",
"retrocomputing",
"thinkpad",
"windows 3.1"
] | It’s been 25 years since Microsoft released Windows for Workgroups 3.11. To take a trip back to the end of the 16-bit era of operating system, [Yeo Kheng Meng] got WFW 3.11 running on a modern Thinkpad.
To make things difficult, a few goals were set for the project. Obviously, this wouldn’t be much fun in a virtual mac... | 61 | 18 | [
{
"comment_id": "4556655",
"author": "steelman",
"timestamp": "2018-05-15T08:04:43",
"content": "Internet Explorer‽",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4557564",
"author": "rasz_pl",
"timestamp": "2018-05-15T16:44:52",
"con... | 1,760,374,372.008398 | ||
https://hackaday.com/2018/05/14/msdos-development-with-gcc/ | MSDOS Development With GCC | Al Williams | [
"Software Hacks"
] | [
"80386",
"dos",
"gcc",
"msdos"
] | It might seem odd to think about programming in MSDOS in 2018. But if you are vintage computer enthusiast or have to support some old piece of equipment with an MSDOS single board computer, it could be just the thing. The problem is, where do you get a working compiler that doesn’t have to run on the ancient DOS machin... | 19 | 12 | [
{
"comment_id": "4556161",
"author": "jonmayo",
"timestamp": "2018-05-15T05:11:04",
"content": "OpenWatcom does 16-bit code out of the box and it is open source. I’ve been making .COM files and boot sectors with it for years. Amusingly it can produce Win16s executables as well, in case you’re in the... | 1,760,374,371.744395 | ||
https://hackaday.com/2018/05/14/tiny-pinball-emulator-is-hugely-impressive/ | Tiny Pinball Emulator Is Hugely Impressive | Kristina Panos | [
"Games"
] | [
"capsense",
"emulator",
"Lattepanda",
"pinball",
"pinball emulator"
] | We were wondering what [Circuitbeard] has been up to lately. Turns out
he’s been building a mini pinball cabinet
to add to his arcade of self-built games.
[Circuitbeard] was forced to break out of his Raspi comfort zone this time. We’re glad he did because this is one impressive build. Finding the pinball emulation com... | 11 | 10 | [
{
"comment_id": "4556228",
"author": "richfiles",
"timestamp": "2018-05-15T06:06:41",
"content": "I love pinball machines… This is a thing I might need…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4556271",
"author": "Xeon",
"timestamp": "2018-05-15... | 1,760,374,371.68756 | ||
https://hackaday.com/2018/05/14/diy-variacs-get-esp8266-upgrades/ | DIY Variacs Get ESP8266 Upgrades | Tom Nardi | [
"hardware",
"Microcontrollers",
"Tool Hacks"
] | [
"ESP8266",
"power meter",
"spi",
"variac"
] | If you’be been hacking and making long enough, you’ve probably run into a situation where you realize that a previous project could be improved with the addition of technology that simply wasn’t available when you built it. Sometimes it means starting over from scratch, but occasionally you luck out and can shoehorn in... | 46 | 10 | [
{
"comment_id": "4555603",
"author": "Mike Massen",
"timestamp": "2018-05-14T23:07:14",
"content": "Brilliant, I have a couple of variacs 10 and 15Amps to 270V AC 50Hz,having a connection to control it with care is great, a link to some HPIBinterface would be of interest bit later of course as my fr... | 1,760,374,371.284595 | ||
https://hackaday.com/2018/05/14/flite-test-puts-a-chair-in-the-air/ | Flite Test Puts A Chair In The Air | Adam Fabio | [
"drone hacks"
] | [
"chair",
"flite test",
"ikea",
"R/C aircraft",
"radio controlled"
] | The Flite Test crew is well known for putting some crazy flying contraptions together. They’ve outdone themselves this time with a
flying IKEA chair
. This build began with [Josh] issuing a challenge to [Stefan]. Take a standard IKEA ladderback chair and make it fly– in less than six hours. With such a tight schedule, ... | 22 | 10 | [
{
"comment_id": "4552585",
"author": "Ostracus",
"timestamp": "2018-05-14T11:20:34",
"content": "Flying chair? How about someone doing a flying desk? Business class.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4552705",
"author": "Dave Davidson",
... | 1,760,374,371.910095 | ||
https://hackaday.com/2018/05/14/esp-cookbook-goes-beyond-chips-and-dips/ | ESP Cookbook Goes Beyond Chips And DIPs | Kristina Panos | [
"hardware",
"how-to"
] | [
"code examples",
"cookbook",
"ESP8266"
] | Are you putting ESP8266s in all your projects these days, whether they need one or not? We don’t blame you. These boards are cheap, tiny, oh and they have WiFi.
If you want to spend less time writing code and more time blinking RGB LEDs over Wi-Fi, then
check out this ESP cookbook over on IO
. [Turo Heikkinen] and team... | 13 | 4 | [
{
"comment_id": "4552681",
"author": "Ostracus",
"timestamp": "2018-05-14T11:52:29",
"content": "“Are you putting ESP8266s in all your projects these days, whether they need one or not? We don’t blame you. These boards are cheap, tiny, oh and they have WiFi.”Put them in all the servers HaD uses. Don... | 1,760,374,371.536239 | ||
https://hackaday.com/2018/05/13/held-captive-by-arduino-and-multiple-rfid-readers/ | Held Captive By Arduino And Multiple RFID Readers | Tom Nardi | [
"Arduino Hacks",
"hardware"
] | [
"arduino",
"authentication",
"MFRC522",
"rfid"
] | If you’re the kind of person who has friends, and/or leaves the confines of the basement from time to time, we hear that these “Escape Rooms” are all the rage. Basically you get locked into a room with a couple other people and have to solve various problems and puzzles until you’ve finally made enough progress that th... | 18 | 9 | [
{
"comment_id": "4552504",
"author": "Deon van Schalkwyk",
"timestamp": "2018-05-14T10:38:51",
"content": "And in the end there will be cake.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4552600",
"author": "Nick",
"timestamp": "2018-05-14T... | 1,760,374,372.201553 | ||
https://hackaday.com/2018/05/13/shirt-pocket-slide-rule-history-of-the-hp-35/ | Shirt Pocket Slide Rule: History Of The HP-35 | Al Williams | [
"Retrocomputing"
] | [
"calculator",
"hewlett packard",
"hp-35"
] | In a recently updated post, [Codex99] has
a detailed history of the HP-35 pocket calculator
. Unless you are a certain age, you probably don’t think much of calculators. They are cheap and not very essential in this day of cell phones and PCs. But in the 1970s they were amazing technology and the desire of every engine... | 29 | 12 | [
{
"comment_id": "4551655",
"author": "Old Phoney",
"timestamp": "2018-05-14T03:07:14",
"content": "Great story. I remember the first time I saw the calculator. I was in the Air Force and an engineer walked in with one and it blew everyone’s mind. How could something that small be able to do logs and... | 1,760,374,372.348837 | ||
https://hackaday.com/2018/05/13/hackaday-links-may-13-2018/ | Hackaday Links: May 13, 2018 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"behringer",
"espressif",
"flying car",
"synthesizer",
"uber"
] | The dumbest thing this week is
Uber’s flying car concept of the future
. The braintrust at Uber envisions a world of skyports, on rooftops or on the ground that will handle 200 takeoffs and landings per hour. That is 4800 per day at a maximum. The record for the number of total takeoffs and landings for any airport was... | 39 | 12 | [
{
"comment_id": "4551318",
"author": "Wade",
"timestamp": "2018-05-13T23:22:25",
"content": "Espressif didn’t release much documentation on the ESP8266 either initially, to be fair. For a long time all that was available was pirate datasheets in Chinese, hence all the uncertainty over whether or not... | 1,760,374,372.27909 | ||
https://hackaday.com/2018/05/13/intra-oral-device-detects-opioid-overdose/ | Intra-Oral Device Detects Opioid Overdose | Kristina Panos | [
"The Hackaday Prize",
"Wearable Hacks"
] | [
"2018 Hackaday Prize",
"hypoventilation",
"nalaxone",
"opoid epidemic",
"opoids",
"respitainer",
"retainer",
"thermoplastic",
"tyvek"
] | As you may have heard, the U.S. is in the grips of an opioid epidemic. Overdose deaths from heroin, oxycontin, and fentanyl have quadrupled since 1999. The key to detecting opioid overdose before it’s too late is in monitoring respiration. Opioids in particular cause depressed respiration, which is slow and ineffective... | 32 | 11 | [
{
"comment_id": "4551046",
"author": "Bob Fleming",
"timestamp": "2018-05-13T20:04:49",
"content": "Isn’t it spelled opioid? And not opoid?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4551137",
"author": "Nevermore78",
"timestamp": "2018-0... | 1,760,374,372.424079 | ||
https://hackaday.com/2018/05/13/flash-memory-caveat-emptor/ | Flash Memory: Caveat Emptor | Brian McEvoy | [
"News",
"Slider"
] | [
"buyer beware",
"caveat emptor",
"flash",
"memory",
"new",
"scam",
"test",
"used"
] | We all love new tech. Some of us love getting the bleeding edge, barely-on-the-market devices and some enjoy getting tech thirty years after the fact to revel in nostalgia. The similarity is that we assume we know what we’re buying and only the latter category expects used parts. But, what if the prior category is
gett... | 29 | 10 | [
{
"comment_id": "4550499",
"author": "Hirudinea",
"timestamp": "2018-05-13T17:12:59",
"content": "OK, so my new tablet has old memory in it, what do I do, besides curse?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4550559",
"author": "GH",
... | 1,760,374,372.680481 | ||
https://hackaday.com/2018/05/14/rc-paper-airplane-from-guts-of-quadcopter/ | RC Paper Airplane From Guts Of Quadcopter | Ben James | [
"drone hacks"
] | [
"3d print",
"airplane",
"drone",
"paper",
"peter sripol",
"quadcopter",
"rc"
] | Mini indoor drones have become an incredibly popular gift in the last few years since they’re both cool and inexpensive. For a while they’re great fun to fly around, until the inevitable collision with a wall, piece of furniture, or family member. Often not the most structurally sound of products, a slightly damaged qu... | 10 | 7 | [
{
"comment_id": "4555539",
"author": "Michael Barton-Sweeney",
"timestamp": "2018-05-14T22:35:08",
"content": "Ha ha, that’s awesome. Now you can do a real-world version of one of my favorite Mac games:Glider",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "45... | 1,760,374,372.609859 | ||
https://hackaday.com/2018/05/14/pgp-vulnerability-pre-announced-by-security-researcher/ | PGP Vulnerability Pre-announced By Security Researcher | Brian Benchoff | [
"News",
"Security Hacks"
] | [
"eFail",
"email",
"Fear Uncertainty and Doubt",
"gpg",
"html",
"PGP",
"Stock Photo hacker"
] | From the gaping maw of the infosec Twitterverse comes horrifying news.
PGP is broken
. How? We don’t know. When will there be any information on this vulnerability? Tomorrow. It’s the most important infosec story of the week, and it’s only Monday. Of course, this vulnerability already has a name. Everyone else is calli... | 30 | 14 | [
{
"comment_id": "4555263",
"author": "Matt Cramer",
"timestamp": "2018-05-14T20:11:34",
"content": "Looks like there’s more detail here:https://efail.de/",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4555266",
"author": "Nope",
"timestamp": ... | 1,760,374,372.809672 | ||
https://hackaday.com/2018/05/14/moagris-a-modular-agriculture-system/ | MoAgriS: A Modular Agriculture System | James Hobson | [
"green hacks",
"home hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"agriculture",
"compact",
"crop",
"full spectrum LED",
"garden",
"modular",
"SAM D11"
] | Hackaday.io user [Prof. Fartsparkle] aims to impress us again with
MoAgriS, a stripped-down rig
for bringing crops indoors and providing them with all they need.
This project is an evolution of their submission to last year’s Hackaday Prize,
MoRaLiS
— a modular lighting system on rails — integrating modules for light, ... | 19 | 4 | [
{
"comment_id": "4555172",
"author": "Ren",
"timestamp": "2018-05-14T19:20:35",
"content": "So, as the plant grows, the light module moves itself further up the rails?B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4555295",
"author": "Prof. Farts... | 1,760,374,372.743438 | ||
https://hackaday.com/2018/05/14/the-electrical-outlet-and-how-it-got-that-way/ | The Electrical Outlet And How It Got That Way | Dan Maloney | [
"Engineering",
"Hackaday Columns",
"History",
"Original Art",
"Slider"
] | [
"connector",
"household",
"mains",
"outlet",
"plug",
"socket",
"standards",
"wiring"
] | Right now, if you happen to be in Noth America, chances are pretty good that there’s at least one little face staring at you. Look around and you’ll spy it, probably about 15 inches up from the floor on a nearby wall. It’s the ubiquitous wall outlet, with three holes arranged in a way that can’t help but stimulate the ... | 221 | 32 | [
{
"comment_id": "4554861",
"author": "MK 2",
"timestamp": "2018-05-14T17:09:52",
"content": "I would call a plug design where the metal prongs are exposed during insertion/removal seriously flawed. That would never get accepted as “the norm” today",
"parent_id": null,
"depth": 1,
"replie... | 1,760,374,373.29825 | ||
https://hackaday.com/2018/05/14/this-weekend-hackaday-x-tindie-meetup-at-bay-area-maker-faire/ | This Weekend: Hackaday X Tindie Meetup At Bay Area Maker Faire. | Brian Benchoff | [
"cons"
] | [
"bamf",
"bay area maker faire 2018",
"meetup",
"o'neill's irish pub",
"san mateo"
] | Maker Faire Bay Area is this weekend, and the Hackaday and Tindie crew are getting ready to jack some cupcake cars. The Bay Area Maker Faire is one of the greatest gatherings of
all the cool people we know
, and five years ago we started host a meetup. This Saturday, we’re blowing the roof off our favorite joint in San... | 4 | 3 | [
{
"comment_id": "4554742",
"author": "Ren",
"timestamp": "2018-05-14T16:47:08",
"content": "YAGGTIHANCOAYet another great get together that I have absolutely no chance of attending…",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4557625",
"author": "... | 1,760,374,372.554002 | ||
https://hackaday.com/2018/05/14/3d-printing-saves-collectible-lures-from-a-fishy-ending/ | 3D-Printing Saves Collectible Lures From A Fishy Ending | Dan Maloney | [
"3d Printer hacks"
] | [
"bait",
"bass",
"fishing",
"lure",
"modeling",
"Outdoors",
"PLA",
"sportsman"
] | Give a man a fishing lure, and he catches fish until he loses the lure. Give a fisherman a 3D-printer, and he can
print all the fishing lures he wants
, especially replicas of those that are too valuable to actually use.
It may seem strange that some people collect fishing lures rather than use them, but when you look ... | 15 | 8 | [
{
"comment_id": "4554499",
"author": "heatgap",
"timestamp": "2018-05-14T15:47:30",
"content": "This is great! What printer platoform are you/they using I couldn’t find mention of it?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4555058",
"author":... | 1,760,374,372.974338 | ||
https://hackaday.com/2018/05/14/the-eric-lundgren-story-when-free-isnt-free/ | The Eric Lundgren Story: When Free Isn’t Free | Tom Nardi | [
"Current Events",
"Featured",
"Slider"
] | [
"gnu",
"gpl",
"microsoft",
"refurbishment",
"software licensing",
"windows"
] | At this point, you’ve almost certainly heard the tale of Eric Lundgren, the electronics recycler who is now looking at spending 15 months in prison
because he was duplicating freely available Windows restore discs
. Of no use to anyone who doesn’t already have a licensed copy of Windows, these restore discs have little... | 197 | 40 | [
{
"comment_id": "4554066",
"author": "Sancho",
"timestamp": "2018-05-14T14:13:26",
"content": "While I expect the discussion to be “stormy” at best, I’d like to express gratitude for the article. I did not look at the issue from this perspective – most tabloids kept the details away.Thanks.",
"p... | 1,760,374,373.631286 | ||
https://hackaday.com/2018/05/13/3d-printing-air-quality-study/ | 3D Printing Air Quality Study | Al Williams | [
"3d Printer hacks"
] | [
"3d printer",
"3d printing",
"carcinogens",
"fumes",
"toxicity"
] | You’ll often hear about some study in the media and then — on examination — find it doesn’t really apply to your situation. Sure, substance X causes cancer in rats, but they ate 8 pounds of it a day for a decade. That’s why we were glad to see [Chuck] post
a series of videos about 3D printing air quality
based on his p... | 18 | 9 | [
{
"comment_id": "4550384",
"author": "PirateLabs",
"timestamp": "2018-05-13T16:15:01",
"content": "Nice to see someone actually doing research and testing instead of just repeating what they read on the internet somewhere. I am a PLA guy myself not for safety necessarily, but because I can get it t... | 1,760,374,373.033851 | ||
https://hackaday.com/2018/05/13/build-your-own-avionics-suite-if-you-dare/ | Build Your Own Avionics Suite, If You Dare | Bryan Cockfield | [
"Transportation Hacks"
] | [
"airplane",
"atmega",
"avionics",
"controller",
"electronics",
"engine",
"open source"
] | If you’re really interested in aircraft and flying, there are many ways to explore that interest. There are models of a wide range of sizes and complexities that are powered and remote-controlled, and even some small lightweight aircraft that can get you airborne yourself for a minimum of expense. If you’re lucky enoug... | 25 | 7 | [
{
"comment_id": "4549781",
"author": "AKA the A",
"timestamp": "2018-05-13T11:39:03",
"content": "“The project page does mention that this is experimental as well, so it might not be advised to use in your own personal aircraft without some proper testing first.”you probably misunderstood that…in or... | 1,760,374,373.366746 | ||
https://hackaday.com/2018/05/13/sign-of-the-smith-chart-times/ | Sign Of The Smith Chart Times | Al Williams | [
"Radio Hacks"
] | [
"antenna analyzer",
"complex impedance",
"Reactance",
"smith chart",
"w2aew"
] | The Smith chart is a staple for analyzing complex impedance. [W2AEW] notes that a lot of inexpensive test gear like the MFJ-259B gives you complex readings, but fails to provide the sign of the imaginary part of the complex number. That makes it difficult to plot the results on a Smith chart or carry out other analysis... | 5 | 5 | [
{
"comment_id": "4549512",
"author": "RoGeorge",
"timestamp": "2018-05-13T10:18:22",
"content": "This is the SimSmith tutorials channel, recommended some time ago by W2AEW:https://www.youtube.com/channel/UCKSyLSu4fm_1RHoO3Jvk4YQ",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,374,373.677421 | ||
https://hackaday.com/2018/05/12/battery-powered-watering-timer-converted-to-solar-on-the-cheap/ | Battery-Powered Watering Timer Converted To Solar On The Cheap | Dan Maloney | [
"green hacks",
"home hacks"
] | [
"charger",
"irrigation",
"lipo",
"pv",
"solar",
"solenoid",
"timer",
"valve",
"watering"
] | Watering the garden or the lawn is one of those springtime chores that is way more appealing early in the season than later. As the growing season grinds along, a chore that seemed life-giving and satisfying becomes, well, just another chore, and plants often suffer for it.
Automating the watering task can be as simple... | 13 | 8 | [
{
"comment_id": "4548529",
"author": "Vinalon",
"timestamp": "2018-05-13T06:29:57",
"content": "Awesome – solar-charged edge devices are fantastic!But I wonder, do you really need the charge density of a LiPo there? For stationary and unattended applications, could it make more sense to use a nickel... | 1,760,374,373.726809 | ||
https://hackaday.com/2018/05/12/hft-on-hf-you-cant-beat-it-for-latency/ | HFT On HF, You Can’t Beat It For Latency | Jenny List | [
"Radio Hacks"
] | [
"antenna",
"HF",
"HFT",
"high-frequency trading",
"latency",
"shortwave"
] | If you are a radio enthusiast of A Certain Age, you may well go misty-eyed from time to time with memories of shortwave listening in decades past. Countries across the world operated their own propaganda radio stations, and you could hear Radio Moscow’s take on world events, the BBC World Service responding, and Radio ... | 14 | 8 | [
{
"comment_id": "4548171",
"author": "Kieran Murphy",
"timestamp": "2018-05-13T02:30:18",
"content": "The only problem with HF is the serialization delay inherent in such a slow connection. Which almost totally negates the gains in latency.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,373.832226 | ||
https://hackaday.com/2018/05/12/a-two-range-oled-capacitance-meter/ | A Two-Range OLED Capacitance Meter | Al Williams | [
"Arduino Hacks",
"Tool Hacks"
] | [
"arduino",
"arduino capacitance meter",
"capacitance meter"
] | If you are just starting out in electronics, you need tools. But it is hard to build all your tools. Even though we see a lot of soldering station builds, you really ought to have a soldering iron to build the station. It is hard to troubleshoot a multimeter you just built if you don’t have a multimeter. However, a cap... | 14 | 5 | [
{
"comment_id": "4547837",
"author": "Robert Mateja",
"timestamp": "2018-05-12T23:15:31",
"content": "https://www.mikrocontroller.net/articles/AVR_Transistortester$10 delivered, from far east usual suspects.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "454... | 1,760,374,373.777444 | ||
https://hackaday.com/2018/05/12/the-current-advances-of-pcb-motors/ | The Current Advances Of PCB Motors | Brian Benchoff | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"BLDC",
"brushless",
"brushless DC motor",
"pcb",
"rotor",
"stator"
] | There’s something to be said about the falling costs of printed circuit boards over the last decade. It’s opened up the world of PCB art, yes, but it’s also allowed for some experimentation with laying down fine copper wires inside a laminate of fiberglass and epoxy. We can design our own capacitive touch sensors. If y... | 9 | 7 | [
{
"comment_id": "4547592",
"author": "deshipu",
"timestamp": "2018-05-12T20:20:28",
"content": "Let’s not forgethttps://hackaday.io/project/85502-pcb-stepper-motor",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4548213",
"author": "Jeremy",
"timestamp"... | 1,760,374,373.996368 | ||
https://hackaday.com/2018/05/11/flashing-an-led-the-widlar-way/ | Flashing An LED The Widlar Way | Jenny List | [
"LED Hacks",
"Parts"
] | [
"723",
"bob widlar",
"boldport",
"Widlar",
"μA723"
] | Regular Hackaday readers will be familiar with the work of Boldport’s [Saar Drimer] in creating beauty in printed circuit board design. A recent work of his is the Widlar, a tribute to the legendary integrated circuit designer [Bob Widlar] in the form of a development board for his μA723 voltage regulator chip.
The μA7... | 7 | 3 | [
{
"comment_id": "4544530",
"author": "Ren",
"timestamp": "2018-05-11T20:08:06",
"content": "“This is pretty neat and if you are used to the NE555 as the universal integrated circuit, perhaps it’s time to set it aside for the obviously far-more-useful μA723.”I could’ve done that with a 55… uh, wait... | 1,760,374,374.045171 | ||
https://hackaday.com/2018/05/11/pick-and-place-machine-is-mirror-image-of-3d-printer/ | Pick And Place Machine Is Mirror Image Of 3D Printer | Ben James | [
"3d Printer hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"3d print",
"open source",
"pick and place"
] | For his Hackaday prize entry, [Daren Schwenke] is creating an
open-source pick-and-place head for a 3D printer
which, is itself, mostly 3D printable. Some serious elbow grease has gone into the design of this, and it shows.
The really neat part of this project comes in the imaging of the part being placed. The aim is t... | 7 | 2 | [
{
"comment_id": "4544432",
"author": "Suck n Blow",
"timestamp": "2018-05-11T19:12:38",
"content": "I have been thinking about getting suction from an aquarium pump. I wanted to be able to re-use the same pump for either suction or blowing without taking it apart. My plan is to enclose the pump in ... | 1,760,374,374.093254 | ||
https://hackaday.com/2018/05/11/biasing-that-transistor-the-common-base-amplifier/ | Biasing That Transistor: The Common Base Amplifier | Jenny List | [
"Hackaday Columns",
"how-to",
"Original Art",
"Parts"
] | [
"amplifier",
"common base",
"transistor biasing",
"transistors"
] | We’ve
previously remarked
upon a generation lucky enough to be well-versed in microcontrollers and computersised electronics through being brought up on the Arduino or the Raspberry Pi but unlucky enough to have missed out on basic electronics such as how to bias a transistor, and to address that gap we’ve taken a look... | 31 | 12 | [
{
"comment_id": "4544174",
"author": "Ren",
"timestamp": "2018-05-11T17:05:03",
"content": "Dots good!B^)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4544176",
"author": "Ren",
"timestamp": "2018-05-11T17:05:34",
"content": "(said ... | 1,760,374,374.167629 | ||
https://hackaday.com/2018/05/11/3d-printed-worm-gear-drive-project-unveils-invisible-flaw/ | Fail Of The Week: 3D Printed Worm Gear Drive Project Unveils Invisible Flaw | Roger Cheng | [
"3d Printer hacks",
"Fail of the Week"
] | [
"3d printed",
"3d printing",
"accuracy",
"belt",
"worm gear",
"z-axis"
] | All of us would love to bring our projects to life while spending less money doing so. Sometimes our bargain hunting pays off, sometimes not. Many of us would just shrug at a failure and move on, but that is not [Mark Rehorst]’s style. He tried to build a Z-axis drive for his 3D printer around an inexpensive worm gear ... | 27 | 7 | [
{
"comment_id": "4544061",
"author": "alex",
"timestamp": "2018-05-11T16:14:08",
"content": "This is actually pretty common and can be partially rectified by also using a linear slide of some sort.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4549832",
... | 1,760,374,374.520984 | ||
https://hackaday.com/2018/05/11/scratch-built-ornithopter-heres-how-i-flapped-my-way-to-flight/ | Scratch-Built Ornithopter: Here’s How I Flapped My Way To Flight | Steven Dufresne | [
"classic hacks",
"Engineering",
"Featured",
"Slider"
] | [
"aerodynamics",
"balsa wood",
"bamboo",
"lever",
"ornithopter",
"rubber band"
] | One of humankind’s dreams has always been to fly like a bird. For a hacker, an achievable step along the path to that dream is to make an ornithopter — a machine which flies by flapping its wings. An RC controlled one would be wonderful, controlled flight is what everyone wants. Building a flying machine from scratch i... | 35 | 15 | [
{
"comment_id": "4543786",
"author": "Will",
"timestamp": "2018-05-11T14:18:13",
"content": "Awesome write-up and awesome work!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4543962",
"author": "Steven Dufresne",
"timestamp": "2018-05-11T15:... | 1,760,374,374.606422 | ||
https://hackaday.com/2018/05/11/stylish-business-card-with-a-stylophone-built-in/ | Stylish Business Card With A Stylophone Built In | Dan Maloney | [
"Musical Hacks"
] | [
"attiny85",
"controller",
"etching",
"gold immersion",
"midi",
"pcb",
"resist",
"stylophone",
"usb"
] | If you’re in the electronics business, PCB business cards seem like a natural fit. They may be impractical and expensive, but they can really set you apart from that boring paper card from Vistaprint crowd. But they need to make sense for what you do, so for a musician and MIDI pro,
this MIDI-controller stylophone busi... | 19 | 8 | [
{
"comment_id": "4543247",
"author": "Mike Massen",
"timestamp": "2018-05-11T11:28:25",
"content": "Great stuff Dan MaloneyA very nice thoughtful & intelligent design approach, takes me back tothe product I did circa 2002 as a snap in type fuse holder for anenclosure free drop in replacement for the... | 1,760,374,374.673071 | ||
https://hackaday.com/2018/05/11/antique-lighthouse-lens-via-cnc/ | Antique Lighthouse Lens Via CNC | Bryan Cockfield | [
"cnc hacks",
"Tool Hacks"
] | [
"acrylic",
"brass",
"fresnel",
"lens",
"lighthouse",
"reproduction"
] | Before the invention of the high-powered LED, and even really before the widespread adoption of electric lights in general, lighthouses still had the obligation of warning ships of dangers while guiding them into various safe harbors. They did this with gas lights and impressive glass lenses known as Fresnel lenses whi... | 22 | 11 | [
{
"comment_id": "4542807",
"author": "Gérald",
"timestamp": "2018-05-11T08:24:40",
"content": "Impressive work! The result is awesome.I would love to have details about how to polish clear plastic too. It would be useful to restore scratched parts (like large clocks front “glass”).",
"parent_id"... | 1,760,374,374.392368 | ||
https://hackaday.com/2018/05/09/breadboarding-git-for-a-b-testing-actual-bread/ | Breadboarding: Git For A/B Testing Actual Bread | Al Williams | [
"cooking hacks"
] | [
"baking",
"bread",
"cooking",
"sourdough",
"yeast"
] | We will be the first to admit, we like to use Git for a lot of things that are probably off the beaten path. But now thanks to [hendricius] you can find out how to
make your own bread on GitHub
. Let’s get one thing straight. This isn’t the breadmaker fad from a while back, although we are surprised we don’t see more h... | 17 | 3 | [
{
"comment_id": "4539035",
"author": "Ostracus",
"timestamp": "2018-05-09T20:18:06",
"content": "If one eats a lot of bread, breadmakers aren’t a bad investment.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4539062",
"author": "Nicholas",
"... | 1,760,374,374.452375 | ||
https://hackaday.com/2018/05/09/the-metabolizer-turns-trash-into-treasure/ | The Metabolizer Turns Trash Into Treasure | Kristina Panos | [
"green hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"biodegradable",
"biomass",
"metabolization",
"plastic",
"recycling",
"trash",
"waste"
] | The amount of stuff we humans throw away is too damn high, and a bunch of it harms the ecosystem. But what are you gonna do? [Sam Smith] thinks we can do better than shoving most of it in a landfill and waiting for it to break down. That’s why he’s building The Metabolizer.
It’s a series of systems designed to turn hou... | 35 | 10 | [
{
"comment_id": "4538919",
"author": "Ostracus",
"timestamp": "2018-05-09T18:41:59",
"content": "“The amount of stuff we humans throw away is too damn high, and a bunch of it harms the ecosystem. But what are you gonna do? [Sam Smith] thinks we can do better than shoving most of it in a landfill and... | 1,760,374,374.799578 | ||
https://hackaday.com/2018/05/09/optocouplers-defending-your-microcontroller-midi-and-a-hot-tip-for-speed/ | Optocouplers: Defending Your Microcontroller, MIDI, And A Hot Tip For Speed | Elliot Williams | [
"Hackaday Columns",
"Original Art",
"Skills",
"Slider"
] | [
"analog circuitry",
"bob pease",
"microcontroller",
"motor driver",
"opto",
"optoisolation",
"transistor"
] | Deep in the heart of your latest project lies a little silicon brain. Much like the brain inside your own bone-plated noggin, your microcontroller needs protection from the outside world from time to time. When it comes to isolating your microcontroller’s sensitive little pins from high voltages, ground loops, or gener... | 65 | 31 | [
{
"comment_id": "4538484",
"author": "jcreedon",
"timestamp": "2018-05-09T17:34:57",
"content": "Add the extra circuitry, or instead just use a 6N137, with a rise time of 23ns. About the same price, smaller BOM, less board area.https://www.vishay.com/docs/84732/6n137.pdf",
"parent_id": null,
... | 1,760,374,374.913023 | ||
https://hackaday.com/2018/05/09/friday-hack-chat-open-hardware-for-science/ | Friday Hack Chat: Open Hardware For Science | Brian Benchoff | [
"Hackaday Columns"
] | [
"citizen science",
"Hack Chat",
"open hardware",
"science",
"scientific equipment"
] | Scientific equipment is expensive. It can cost hundreds of thousands of dollars to set up a lab. Simply the cost of machines, like data acquisition units or even a simple load cell, can cost hundreds of dollars. This makes research cost prohibitive, and that’s the case even if you do spend a dozen hours a week writing ... | 5 | 3 | [
{
"comment_id": "4538434",
"author": "Ren",
"timestamp": "2018-05-09T17:03:55",
"content": "Related to Sophie (Kravitz, not the “other” one)?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4538902",
"author": "Brian Benchoff",
"timestamp": "2... | 1,760,374,374.725836 | ||
https://hackaday.com/2018/05/09/broken-screen-becomes-polarizing-art-lamp/ | Broken Screen Becomes Polarizing Art Lamp | Kristina Panos | [
"green hacks",
"LED Hacks"
] | [
"broken screen",
"laptop screen",
"leds",
"polarizing film",
"reuse"
] | Got a broken laptop screen sitting around? If you haven’t already pilfered the LEDs and used the polarizing sheets for screen privacy filters,
why not turn it into a unique table lamp
? See if you can use more parts of the screen than [alexmaree-ross] did.
This is a simple idea with great-looking results, but the proce... | 7 | 6 | [
{
"comment_id": "4538307",
"author": "Brad (Griff)",
"timestamp": "2018-05-09T15:42:27",
"content": "Yep, that’s my style of 60s acid trip light. I like.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4538324",
"author": "Nitpicker Smartyass",
"timesta... | 1,760,374,374.954993 | ||
https://hackaday.com/2018/05/09/an-ode-to-belgrade/ | An Ode To Belgrade | Brian Benchoff | [
"cons",
"Featured",
"Interest",
"Slider"
] | [
"Belgrade",
"Brutalist architecture",
"Genex Tower",
"Hackaday Belgrade",
"Hackaday Belgrade 2018",
"Nikola Tesla",
"serbia",
"tesla",
"Western Gate"
] | In two weeks the Hackaday Community is gathering in Belgrade for
Europe’s greatest hardware con, The Hackaday Belgrade Conference
— an event not to be missed — but of course the city itself is a spectacular place to visit and has the perfect feel for those who like to build electronics. Why not join us for your own gee... | 27 | 13 | [
{
"comment_id": "4538243",
"author": "Ren",
"timestamp": "2018-05-09T14:51:35",
"content": "“(a Pivo will cost you less than two Teslas). ”Model 3?Model S?Model X?Roadster?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4538370",
"author": "salec",
... | 1,760,374,375.02957 | ||
https://hackaday.com/2018/05/09/8-bit-game-uses-our-favourite-ic-and-zero-lines-of-code/ | 8-bit Game Uses Our Favourite IC And Zero Lines Of Code | Anool Mahidharia | [
"classic hacks",
"Games"
] | [] | If a hacker today wanted to build a simple game, he or she could whip it up using an Arduino board and a few other bits and pieces in about an hour, only to be greeted with “where’s the hack?” But when you look at [OiD]’s
SPEBEG (Single Player Eight Bit Electronic Game)
, you’ll understand why building anything using o... | 17 | 14 | [
{
"comment_id": "4537974",
"author": "Mad cunt",
"timestamp": "2018-05-09T11:38:37",
"content": "What are all those ICs for? I could have done it with 555 timers.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4538048",
"author": "gabrielssanches",
"ti... | 1,760,374,375.203783 | ||
https://hackaday.com/2018/05/10/microsoft-kinect-episode-iv-a-new-hope/ | Microsoft Kinect Episode IV: A New Hope | Roger Cheng | [
"Kinect hacks",
"News"
] | [
"azure",
"cloud",
"depth camera",
"depth sensor",
"IoT",
"Kinect",
"microsoft"
] | The history of Microsoft Kinect has been of a technological marvel in search of the perfect market niche. Coming out of Microsoft’s Build 2018 developer conference, we learn Kinect is making another run. This time it’s taking on the Internet of Things mantle as
Project Kinect for Azure
.
Kinect was revolutionary in mak... | 31 | 7 | [
{
"comment_id": "4540947",
"author": "Internet",
"timestamp": "2018-05-10T15:35:12",
"content": "Required cloud = no interest.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4540965",
"author": "Ren",
"timestamp": "2018-05-10T15:39:07",
... | 1,760,374,375.277441 | ||
https://hackaday.com/2018/05/10/modular-robotics-when-you-want-more-robots-in-your-robot/ | Modular Robotics: When You Want More Robots In Your Robot | Bryan Cockfield | [
"Featured",
"Interest",
"Robots Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"cellular automata",
"Dtto",
"Hackaday Prize",
"M-blocks",
"mit",
"modular robot",
"robot module",
"robotics",
"Robotics Module Challenge"
] | While robots have been making our lives easier and our assembly lines more efficient for over half a century now, we haven’t quite cracked a Jetsons-like general purpose robot yet. Sure, Boston Dynamics and MIT have some humanoid robots that are fun to kick and knock over, but they’re far from building a world-ending T... | 8 | 6 | [
{
"comment_id": "4540872",
"author": "Robert Mateja",
"timestamp": "2018-05-10T14:39:48",
"content": "Is that third robot in Johny5 is intended ?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4540900",
"author": "Ren",
"timestamp": "2018-05-... | 1,760,374,375.401457 | ||
https://hackaday.com/2018/05/10/1960s-console-stereo-gets-raspberry-pi-touch-screen/ | 1960’s Console Stereo Gets Raspberry Pi Touch Screen | Tom Nardi | [
"classic hacks",
"digital audio hacks",
"Raspberry Pi"
] | [
"HiFiBerry",
"Penncrest",
"raspberry pi",
"touch screen",
"vintage",
"Volumio"
] | When he was but a wee hacker, [WhiskeyDrinker] loved to play with the big console stereo his grandparents had. The idea of a functional piece of furniture always appealed to him, and he decided that when he grew up and had a place of his own he’d get a similar stereo. Fast forward to the present, and a Craigslist ad fo... | 23 | 8 | [
{
"comment_id": "4540716",
"author": "Ren",
"timestamp": "2018-05-10T13:22:08",
"content": "They don’t make ’em like they used to!https://www.youtube.com/watch?v=TRGQwT9mu5Q",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4540908",
"author": "Ren",
"tim... | 1,760,374,375.532852 | ||
https://hackaday.com/2018/05/10/quiet-your-car-the-cheap-and-effective-way/ | Quiet Your Car The Cheap And Effective Way | Lewin Day | [
"car hacks"
] | [
"car audio",
"sound deadening",
"sound insulation"
] | If you’ve been on the Earth for a couple of decades or more, or have just grown up riding around in some older metal, you’d know that cars can be incredibly noisy. If you’re unfamiliar, buy yourself a nice car like a 2000 Honda Civic, strip out all the carpet and interior panels, and go for a drive. Huge amounts of res... | 31 | 10 | [
{
"comment_id": "4540311",
"author": "dave",
"timestamp": "2018-05-10T09:01:59",
"content": "Bitumen roof sealant strips replace the stuff with a pretty name and a higher price tag.Yes some of them are foirmulated to perform better, but price performance ratio doesn’t win out.You can alwasy double u... | 1,760,374,375.469319 | ||
https://hackaday.com/2018/05/09/vector-network-analyzer-uses-soc-fpga/ | Vector Network Analyzer Uses SoC FPGA | Al Williams | [
"ARM",
"FPGA"
] | [
"arm",
"DE10",
"DE10-Nano",
"fpga",
"innovatefpga",
"vector network analyzer",
"vna"
] | If you are working with AC circuits a vector network analyzer (VNA) is quite handy. As an entry to the InnovateFPGA competition for students, [Evgenii Vostrikov], [Danila Nikiforovskii], and [Daniil Smirnov]
created a VNA
using a DE10-Nano, high-speed analog to digital and digital to analog converters, and a circulator... | 15 | 6 | [
{
"comment_id": "4540837",
"author": "Ren",
"timestamp": "2018-05-10T14:12:11",
"content": "Wow! (mind explodes)A “solid state” (i.e. non-ferrite) circulator!The only circulators I’ve seen up to this point weighed more than 100 pounds.",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,374,375.586974 | ||
https://hackaday.com/2018/05/09/pic16maze-upgrades-secret-maze-game/ | PIC16Maze Upgrades Secret Maze Game | Steven Dufresne | [
"LED Hacks"
] | [
"game",
"led",
"maze",
"minimalist",
"PIC16F",
"ws2812"
] | We really like it when a reader is inspired by something they see on Hackaday, build on it, and let us know so we can pass it on. In this case, [Vegipete] made
a secret maze game using a minimal number of parts
and some neat software trickery.
It’s built around an 8-pin PIC16F18313 microcontroller, uses a joystick for ... | 4 | 2 | [
{
"comment_id": "4539886",
"author": "jonmayo",
"timestamp": "2018-05-10T04:40:31",
"content": "A Hunt the Wumpus might require even less of a user interface. Need to know if there are Bats, Pits, or Wumpus in an adjacent room.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,375.677674 | ||
https://hackaday.com/2018/05/09/qelectrotech-an-open-source-wiring-diagram-tool/ | QElectroTech: An Open Source Wiring Diagram Tool | Eric Evenchick | [
"Tool Hacks"
] | [
"i hate visio",
"iec 60617",
"open source",
"qelectrotech",
"wiring diagram"
] | There’s a few open source options out there for creating electrical schematics.
KiCad
and
Fritzing
are two that will take you from schematic capture to PCB layout. However, there’s been limited options for creating wiring diagrams. Often these are created in Microsoft’s Visio, which is neither open source nor well suit... | 22 | 8 | [
{
"comment_id": "4539815",
"author": "ComputerCarsten",
"timestamp": "2018-05-10T03:52:06",
"content": "Why these island solutions?There are already some programs of this kind. Rather than adding to the list they should bundle their effords.I think its time that a program could be added to the (open... | 1,760,374,375.740008 |
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