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https://hackaday.com/2018/08/10/circuit-vr-starting-an-amplifier-design/ | Circuit VR: Starting An Amplifier Design | Al Williams | [
"Hackaday Columns",
"how-to",
"Skills"
] | [
"amplifier",
"bipolar transistor",
"circuit vr",
"common emitter",
"LTSpice",
"transistor"
] | Sometimes I wish FETs had become practical before bipolar transistors. A FET is a lot more like a tube and amplifies voltages. Bipolar transistors amplify current and that makes them a bit harder to use. Recently, [Jenny List] did a series on transistor amplifiers including the topic of this Circuit VR, the
common emit... | 11 | 9 | [
{
"comment_id": "4846279",
"author": "RandyKC",
"timestamp": "2018-08-10T17:20:31",
"content": "I just want to say that you’ve been doing a fantastic job on multiple series that you’ve been posting.Please keep it up!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id... | 1,760,374,263.742377 | ||
https://hackaday.com/2018/08/10/otto-a-pi-based-open-source-music-production-box/ | OTTO: A Pi Based Open Source Music Production Box | Adam Fabio | [
"Musical Hacks",
"Raspberry Pi"
] | [
"music",
"raspberry pi",
"synth",
"synthesizer"
] | Want an open source portable synth workstation that won’t break the bank?
Check out OTTO
. [Topisani] started OTTO as a clone of the well-known
Teenage Engineering OP-1
. However, soon [Topisani] decided to branch away from simply cloning the OP-1 — instead, they’re taking a lot of inspiration from it in terms of form ... | 10 | 8 | [
{
"comment_id": "4846045",
"author": "AVR",
"timestamp": "2018-08-10T15:16:33",
"content": "now this is a project I can get behind, I’ve thought of many similar devices, really glad someone is out there making hardware instruments using the pi. Expect to see my RPi + 20 inch touch screen synth contr... | 1,760,374,263.800316 | ||
https://hackaday.com/2018/08/10/rediffusion-television-early-cable-tv-delivered-like-telephone/ | Rediffusion Television: Early Cable TV Delivered Like Telephone | Jenny List | [
"classic hacks",
"Featured",
"History",
"Original Art",
"Video Hacks"
] | [
"cable TV",
"Rediffusion",
"tv"
] | Recently I spent an enjoyable weekend in Canterbury, staying in my friend’s flat with a superb view across the rooftops to the city’s mediaeval cathedral. Bleary-eyed and in search of a coffee on the Sunday morning, my attention was immediately drawn to one of her abode’s original built-in features. There on the wall i... | 63 | 30 | [
{
"comment_id": "4845921",
"author": "Ren",
"timestamp": "2018-08-10T14:19:47",
"content": "Wow! As a Yankee, I’d never heard of it.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4845958",
"author": "Xerxes3rd",
"timestamp": "2018-08-10T14:... | 1,760,374,264.009845 | ||
https://hackaday.com/2018/08/10/3d-printers-get-a-fuel-gauge-adding-a-filament-scale-to-octoprint/ | 3D Printers Get A Fuel Gauge: Adding A Filament Scale To OctoPrint | Tom Nardi | [
"3d Printer hacks",
"hardware",
"Raspberry Pi"
] | [
"filament",
"hx711",
"Octoprint",
"octoprint plugin",
"scale"
] | It seems a simple enough concept: as a 3D printer consumes filament, the spool becomes lighter. If you weighed an empty spool, and subtracted that from the weight of the in-use spool, you’d know how much filament you had left. Despite being an easy way to get a “fuel gauge” on a desktop 3D printer, it isn’t something w... | 17 | 9 | [
{
"comment_id": "4845392",
"author": "hack-cookie",
"timestamp": "2018-08-10T11:14:29",
"content": "“… show the user a warning if they try to start a print …” thats the point to consider FilamentManager, it tracks usage, warns about low filament and has some more nifty features.https://plugins.octop... | 1,760,374,264.213655 | ||
https://hackaday.com/2018/08/10/a-display-made-from-shoelaces/ | A Display Made From Shoelaces | Jenny List | [
"LED Hacks"
] | [
"7 segment",
"7 segment LED display",
"light pipe",
"shoelaces"
] | In our time here at Hackaday, we have seen many display builds, but this one from [Brian Lough] has to be a first. He’s created
a 7-segment display made from shoelaces
, and it works rather well.
Before you imagine the fabric cords you’re used to with your trainers, it’s worth explaining that these aren’t shoelaces in ... | 5 | 5 | [
{
"comment_id": "4845922",
"author": "Clovis Fritzen",
"timestamp": "2018-08-10T14:20:31",
"content": "Perfect interaction between electronics, advertisement, readly-available materials and art. +1",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4846190",
"... | 1,760,374,264.052212 | ||
https://hackaday.com/2018/08/09/op-amps-before-transistors-a-600v-vacuum-tube-monster/ | Op Amps Before Transistors: A 600V Vacuum Tube Monster | Ben James | [
"Misc Hacks"
] | [
"high voltage",
"k2-w",
"Mr Carlson",
"op-amp",
"transistors",
"tube",
"valve"
] | Op amps. Often the first thing that many learn about when beginning the journey into analog electronics, they’re used in countless ways in an overwhelmingly large array of circuits. When we think about op amps, images of DIPs and SOICs spring to mind, with an incredibly tiny price tag to boot. We take their abundance a... | 11 | 6 | [
{
"comment_id": "4844314",
"author": "???? ????",
"timestamp": "2018-08-10T06:15:11",
"content": "Looks like these are similar tubes?https://www.youtube.com/watch?v=Imsc_J25QmE",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4845682",
"author": "Michael Bla... | 1,760,374,264.264509 | ||
https://hackaday.com/2018/08/09/high-tech-drone-scarecrows-can-make-airports-safer/ | High Tech Drone Scarecrows Can Make Airports Safer | Al Williams | [
"drone hacks"
] | [
"airport",
"bird",
"caltech",
"drone",
"Flock",
"uav"
] | If you pay attention to airplane news — or you watched the film Sully — you know planes have problems with birds. Sully was about US Airways flight 1549 which struck a flock of geese and ditched in the Hudson river. Engineers at Caltech say that was the inspiration for them to develop
a control algorithm that enables ... | 8 | 6 | [
{
"comment_id": "4843332",
"author": "Leithoa",
"timestamp": "2018-08-10T02:11:53",
"content": ">>We usually think of airports as a no-fly zone for dronesYou just gotta play by the same traffic rules as everyone else in the flight pattern.You’d think gas powered drones noise would be a selling point... | 1,760,374,264.448969 | ||
https://hackaday.com/2018/08/09/python-resurrects-dot-matrix-printing/ | Python Resurrects Dot Matrix Printing | Al Williams | [
"Linux Hacks",
"Retrocomputing"
] | [
"commodore",
"dot matrix printer",
"printer",
"python"
] | These days a printer — especially one at home — is likely to spray ink out of nozzles. It is getting harder to find home laser printers, and earlier printer technologies such as dot matrix are almost gone from people’s homes even if you’ll still see a few printing multipart forms in some offices.
[Thomas Winningham] bo... | 54 | 12 | [
{
"comment_id": "4841820",
"author": "thargrav",
"timestamp": "2018-08-09T23:22:22",
"content": "And this is a good thing?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4841901",
"author": "Clovis Fritzen",
"timestamp": "2018-08-09T23:46:58"... | 1,760,374,264.141311 | ||
https://hackaday.com/2018/08/09/first-look-at-def-con-26-official-badge/ | First Look At DEF CON 26 Official Badge | Mike Szczys | [
"cons",
"Featured",
"Slider"
] | [
"badge challenge",
"badge hacking",
"badgelife",
"DEF CON",
"DEFCON 26",
"official badge"
] | To the delight of everyone, this year’s official DEF CON badge is an electronic badge chock full of entertainment. Of course there is blinky, the board is artistic, and everyone hopefully maybe gets one (it’s rumored 27,000+ were manufactured) if they don’t run out. But the badge contest at DEF CON is legendary — solve... | 25 | 13 | [
{
"comment_id": "4840890",
"author": "zakqwy",
"timestamp": "2018-08-09T20:43:15",
"content": "a favorite — the SunLED XZMDKCBDDG45S-9. beautiful badge!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4840968",
"author": "Flint",
"timestamp": "2018-08-0... | 1,760,374,264.343262 | ||
https://hackaday.com/2018/08/09/big-power-little-power-tiny-power-zap/ | Big Power, Little Power, Tiny Power, Zap! | Roger Cheng | [
"Hackaday Columns",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"peltier",
"photovoltaic",
"potato battery",
"potato cell",
"solar charger",
"solar collector",
"solar energy",
"solar tracker",
"sun tracking",
"TEG",
"thermoelectric generator",
"triboelectric"
] | Our Hackaday Prize Challenges are evaluated by a panel of judges who examine every entry to see how they fare against judging criteria. With prize money at stake, it makes sense we want to make sure it is done right. But we also have our Hackaday Prize achievements, with less at stake leading to a more free-wheeling wa... | 4 | 2 | [
{
"comment_id": "4840295",
"author": "Ren",
"timestamp": "2018-08-09T18:53:13",
"content": "“to a whimsical rehash of the humble potato,”B^)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4840315",
"author": "Ren",
"timestamp": "2018-08-09T18:56:19",
... | 1,760,374,264.405958 | ||
https://hackaday.com/2018/08/09/hackaday-belgrade-asier-marzo-explains-acoustic-levitation/ | Using Acoustic Levitation For Applications Going Way Beyond Novelty | Jenny List | [
"classic hacks",
"cons"
] | [
"Hackaday Belgrade",
"Hackaday Belgrade 2018",
"ultrasonic",
"ultrasonic levitation",
"ultrasound"
] | We’ve all seen acoustic levitation, it’s one of the scientific novelties of our age and a regular on the circuit of really impressive physical demonstrations of science to the public. The sight of arrays of ultrasonic speakers causing small objects and beads of liquid to float in mid-air without any suspension is magic... | 8 | 7 | [
{
"comment_id": "4840460",
"author": "Ostracus",
"timestamp": "2018-08-09T19:23:42",
"content": "Acoustic drilling.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4841073",
"author": "dcfusor2015",
"timestamp": "2018-08-09T21:24:56",
"content": "My... | 1,760,374,264.62565 | ||
https://hackaday.com/2018/08/09/friday-hack-chat-motors-made-out-of-pcbs/ | Friday Hack Chat: Motors Made Out Of PCBs | Brian Benchoff | [
"Hackaday Columns"
] | [
"brushless motor",
"coil",
"Friday Hack Chat",
"Hack Chat",
"pcb motor"
] | One of the most amazing technological advances found in this year’s Hackaday Prize is the careful application of copper traces turned into coils. We’ve seen this before for RFID tags and scanners, but we’ve never seen anything like what Carl is doing. He’s building brushless motors on PCBs.
All you need to build a brus... | 15 | 3 | [
{
"comment_id": "4839783",
"author": "Robert Mateja",
"timestamp": "2018-08-09T16:04:37",
"content": "2006http://www.otherpower.com/images/scimages/15/Printed_stator.JPG",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4839798",
"author": "alfcoder",
... | 1,760,374,264.688061 | ||
https://hackaday.com/2018/08/09/homebrew-pancreas-gets-30-minutes-of-fame/ | Homebrew Pancreas Gets 30 Minutes Of Fame | Al Williams | [
"Medical Hacks",
"News"
] | [
"artificial pancreas",
"diabetes",
"fda",
"insulin",
"insulin pump",
"pancreas",
"rileylink"
] | It is pretty unusual to be reading Bloomberg Businessweek and see an article with the main picture featuring a purple PCB (the picture above, in fact). But that’s just what we
saw this morning
. The story is about
an open source modification to an insulin pump known as the RileyLink
. This takes advantage of older Medt... | 25 | 8 | [
{
"comment_id": "4839737",
"author": "Robert Mateja",
"timestamp": "2018-08-09T15:42:20",
"content": "It’s all fine and dandy until someone with SDR decide to have fun with yours already non-functioning thyroid gland.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,374,265.206257 | ||
https://hackaday.com/2018/08/09/the-vu-meter-and-how-it-got-that-way/ | The VU Meter And How It Got That Way | Dan Maloney | [
"digital audio hacks",
"Engineering",
"Featured",
"Original Art"
] | [
"audio",
"d'Arsonval",
"logarithmic",
"moving coil",
"radio",
"sound",
"telephone",
"volume",
"VU meter"
] | Given its appearance in one form or another in all but the cheapest audio gear produced in the last 70 years or so, you’d be forgiven for thinking that the ubiquitous VU meter is just one of those electronic add-ons that’s more a result of marketing than engineering. After all, the seemingly arbitrary scale and the vag... | 44 | 13 | [
{
"comment_id": "4839618",
"author": "Ren",
"timestamp": "2018-08-09T14:04:46",
"content": "Once again…Nice artwork, Mr. Kim!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4839654",
"author": "Jan",
"timestamp": "2018-08-09T14:35:21",
... | 1,760,374,265.395354 | ||
https://hackaday.com/2018/08/09/reverse-engineering-a-dna-sequencer/ | Reverse Engineering A DNA Sequencer | Tom Nardi | [
"chemistry hacks",
"Medical Hacks"
] | [
"CCD",
"dna",
"DNA sequencing",
"genome",
"reverse engineering"
] | Improvements in methodology have dramatically dropped the cost of DNA sequencing in the last decade. In 2007, it cost around $10 million dollars to sequence a single genome. Today, there are services which will do it for as little as $1,000. That’s not to bad if you just want to examine your own DNA, but prohibitively ... | 19 | 10 | [
{
"comment_id": "4839437",
"author": "Alphatek",
"timestamp": "2018-08-09T11:40:43",
"content": "Not a hack. This goes way beyond a hack. This is magic. Very impressive.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4839613",
"author": "Ostracus",
"ti... | 1,760,374,265.765379 | ||
https://hackaday.com/2018/08/09/results-of-3d-printed-cylinder-head-testing-fail-to-surprise/ | Results Of 3D-Printed Cylinder Head Testing Fail To Surprise | Dan Maloney | [
"3d Printer hacks",
"Slider"
] | [
"abs",
"cylinder head",
"engine",
"gasket",
"internal combustion",
"PLA",
"spark plug",
"thermochromic",
"threading"
] | It’s the suburbanista’s weekend nightmare: you’re almost done with the weekly chores, taking the last few passes with the lawn mower, when you hear a pop and bang. The cylinder head on your mower just blew, and you’re out of commission. Or are you? You’ve got a 3D printer – couldn’t it save the day?
If
this bench test ... | 68 | 15 | [
{
"comment_id": "4839164",
"author": "jaros15",
"timestamp": "2018-08-09T08:05:56",
"content": "How about using the 3d printed part as a mould to cast aluminum?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4840447",
"author": "Peter K",
"ti... | 1,760,374,265.144221 | ||
https://hackaday.com/2018/08/08/mechanical-issues-for-a-pi-cnc/ | Mechanical Issues For A Pi CNC | Lewin Day | [
"cnc hacks"
] | [
"cnc",
"CNC controller",
"raspberry pi"
] | The Raspberry Pi platform has become popular in the maker community for various CNC projects. The single board computers are readily suited to acting as a server for a small CNC setup or 3D printer, though it’s fair to say that for heavy work they probably aren’t quite up to the task of driving the steppers in a seriou... | 19 | 7 | [
{
"comment_id": "4838931",
"author": "seanrhinehart",
"timestamp": "2018-08-09T06:42:34",
"content": "I applaud Danny’s courage for posting this.There are a couple lessons here.1. The lack of structural rigidity of the setup is the most serious issue, IMHO.2. Closed-loop is not always better than op... | 1,760,374,265.022067 | ||
https://hackaday.com/2018/08/08/facebook-wants-to-teach-machine-learning/ | Facebook Wants To Teach Machine Learning | Al Williams | [
"Software Hacks"
] | [
"education",
"facebook",
"machine learning"
] | When you think of technical education about machine learning, Facebook might not be the company that pops into your head. However, the company uses machine learning, and they’ve rolled out
a six-part video series
that they say “shares best real-world practices and provides practical tips about how to apply machine-lear... | 21 | 11 | [
{
"comment_id": "4838161",
"author": "CMH62",
"timestamp": "2018-08-09T02:14:25",
"content": "“And in a related story, Facebook reported today that their AI infused bots taught themselves how to shut down Facebook’s user data sharing algorithms to the external works … MZ said ‘must have been a progr... | 1,760,374,264.9528 | ||
https://hackaday.com/2018/08/08/electric-bike-from-the-ground-up/ | Electric Bike From The Ground Up | Bryan Cockfield | [
"Transportation Hacks"
] | [
"battery",
"bike",
"controller",
"ebike",
"electric",
"lithium",
"motor",
"speed"
] | Electric vehicles are getting more traction these days, but this trend is rolling towards us in more ways than just passenger vehicles. More and more bikes are being electrified too, since the cost of batteries has come down and people realize that they can get around town easily without having to pay the exorbitant pr... | 21 | 10 | [
{
"comment_id": "4837514",
"author": "Saabman",
"timestamp": "2018-08-08T23:08:04",
"content": "I like the idea of an electric bike – I’m lazy and don’t care much for peddling too hard. I used to ride to work every day till I moved further away and started driving now I e got used to been warm and d... | 1,760,374,265.455091 | ||
https://hackaday.com/2018/08/08/printed-part-gets-classic-truck-rolling/ | Printed Part Gets Classic Truck Rolling | Tom Nardi | [
"car hacks",
"classic hacks",
"Transportation Hacks"
] | [
"3D printed parts",
"classic car",
"F100",
"ford",
"gearbox",
"HTPLA"
] | When working on classic vehicles, and especially when modifying them outside of their stock configurations, things can get expensive. It’s a basic principle in economics: the rarer something is the more money somebody can charge you for it. But if you’ve got the skills and the necessary equipment, you can occasionally ... | 19 | 6 | [
{
"comment_id": "4837120",
"author": "Cbob",
"timestamp": "2018-08-08T21:42:29",
"content": "Or if the drive gear specs can be found, a speedometer drive gear could be printed. Used to be a simple (sorta) swap on GM’s older models",
"parent_id": null,
"depth": 1,
"replies": []
},
{
... | 1,760,374,265.52504 | ||
https://hackaday.com/2018/08/08/regenerative-braking-charges-your-phone/ | Regenerative Braking Charges Your Phone | Lewin Day | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"e-bike",
"regenerative braking"
] | Way back when, if you wanted lights on your bike, you’d head off to the local bicycle store and purchase yourself a bottle dynamo. This would consist of a magneto that was attached to a bracket on the back of the bike and would rotate by rubbing against the rear tire, generating power for the lights. These fell out of ... | 17 | 5 | [
{
"comment_id": "4836226",
"author": "a_do_z",
"timestamp": "2018-08-08T18:50:16",
"content": "Could probably interpret stepper pulse rate as current speed.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4836353",
"author": "Jan",
"timestamp": "2018-08... | 1,760,374,265.586682 | ||
https://hackaday.com/2018/08/08/ask-hackaday-is-there-a-common-mechanical-parts-library/ | Ask Hackaday: Is There A Common Mechanical Parts Library? | Dan Maloney | [
"Ask Hackaday",
"Parts"
] | [
"common parts",
"mechanical engineering",
"parts",
"parts library"
] | Like many stories, this one started on the roof. This particular roof is located in Michigan and keeps the rain and snow off of the
i3Detroit hackerspace
. Being an old industrial building, things up on the roof can start getting creaky, and when an almighty screech started coming from one of the rooftop vents as it sw... | 45 | 19 | [
{
"comment_id": "4835811",
"author": "jafinch78",
"timestamp": "2018-08-08T17:12:52",
"content": "Seems as a public resource; the U.S. Secret Service or other forensics agencies have some sort of database like this and that database can be FOIA Request able and/or made available online.",
"paren... | 1,760,374,265.673676 | ||
https://hackaday.com/2018/08/08/sunday-breakfast-at-def-con-2/ | Sunday: Breakfast At DEF CON | Mike Szczys | [
"cons"
] | [
"breakfast at def con",
"DEF CON",
"DEFCON 26",
"meetup"
] | Nurse your hangover by having Breakfast at DEF CON this Sunday. You’re invited to this yearly ritual with Hackaday and Tindie. We’re celebrating the beginning of the end with coffee and pastries beginning at 10:30 am in the Hardware Hacking Village.
Head over to the
Breakfast at DEF CON event page
and hit the “follow e... | 1 | 1 | [
{
"comment_id": "4835663",
"author": "Ren",
"timestamp": "2018-08-08T16:29:35",
"content": "Yummy! Now I want a latte’ with a Jolly Wrencher design on the surface…",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,374,265.708482 | ||
https://hackaday.com/2018/08/08/programmable-badge-uses-e-ink-and-esp8266/ | Programmable Badge Uses E-Ink And ESP8266 | Tom Nardi | [
"Microcontrollers",
"Wearable Hacks"
] | [
"badge",
"badgelife",
"e-ink",
"esp-12f",
"ESP8266",
"wifimanager"
] | You’ve probably noticed that the hacker world is somewhat enamored with overly complex electronic event badges. Somewhere along the line, we went from using a piece of laminated paper on a lanyard to custom designed gadgets that pack in enough hardware that they could have passed for PDAs not that long ago. But what if... | 34 | 15 | [
{
"comment_id": "4835443",
"author": "RandyKC",
"timestamp": "2018-08-08T15:08:34",
"content": "Here’s an idea for the perfect badge.It displays your name, but gradually fades away the closer it gets to another badge.",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment... | 1,760,374,266.241202 | ||
https://hackaday.com/2018/08/08/memories-of-a-mis-spent-youth-learnabout-simple-electronics/ | Memories Of A Mis-Spent Youth: Learnabout Simple Electronics | Jenny List | [
"Reviews"
] | [
"book review",
"childrens book",
"germanium transistors",
"multivibrator",
"screw cup construction"
] | Heaven, for tech-inclined late-1970s British kids.
Early last spring, we featured a book review, as part of our occasional
Books You Should Read
series. Usually these are seminal tomes, those really useful books that stay with you for life and become well-thumbed, but in this case it was a children’s book.
Making a Tra... | 20 | 14 | [
{
"comment_id": "4835274",
"author": "Robert Mateja",
"timestamp": "2018-08-08T14:09:30",
"content": "I have never seen someone more happy being electrocuted as these two on that fine art ;)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4835372",
"... | 1,760,374,266.067173 | ||
https://hackaday.com/2018/08/08/twitch-plays-battling-robots/ | Twitch Plays Battling Robots? | Lewin Day | [
"Robots Hacks"
] | [
"robots",
"stream",
"streaming",
"twitch",
"twitch plays"
] | Audience interaction reached an all-time high in 2014 with
Twitch Plays Pokemon
, an online gaming stream where viewers were able to collaboratively command an emulated Game Boy playing Pokemon Red. Since then, the concept has taken off. Today, we see this extended to robots in the real world,
with [theotherlonestar]’s... | 3 | 3 | [
{
"comment_id": "4835135",
"author": "Clovis Fritzen",
"timestamp": "2018-08-08T13:26:52",
"content": "Not to forget that pokemon game controller by a fish in an aquarium, back in 2014",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4835367",
"author": "Oth... | 1,760,374,266.163066 | ||
https://hackaday.com/2018/08/08/thumbs-up-for-this-custom-atari-5200-controller/ | Thumbs Up For This Custom Atari 5200 Controller | Dan Maloney | [
"Games",
"Retrocomputing"
] | [
"5200",
"adc",
"atari",
"Atari 5200",
"attiny85",
"digital potentiometer",
"Joystick",
"MCP42100",
"retrogaming"
] | It may be nearly 40 years old, but the Atari 5200 still inspires legions of fans to relive the 8-bit glory days of their youth. There was much to love about the game console, but the joystick-and-keypad controllers were not among its many charms. The joystick didn’t auto-center, the buttons were mushy, and the ergonomi... | 16 | 8 | [
{
"comment_id": "4834621",
"author": "Wuff",
"timestamp": "2018-08-08T10:50:26",
"content": "What issue was there just using 10k pots direct?I thought it being in voltage divider config, it’ll work the same, unless it’s rheostat config.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,266.124171 | ||
https://hackaday.com/2018/08/07/automatic-sunglasses-the-electromechanical-way/ | Automatic Sunglasses, The Electromechanical Way | Lewin Day | [
"Arduino Hacks"
] | [
"arduino",
"automatic sunglasses",
"servo",
"sunglasses"
] | These days, photochromic lenses are old-hat. Sure, it’s useful to have a pair of glasses that automatically tints due to UV light, but what if you want something a little more complex and flashy?
Enter [Ashraf Minhaj]’s SunGlass-Bot.
The build is simple, beginning with an Arduino Pro Mini for reasons of size. Connected... | 11 | 7 | [
{
"comment_id": "4834133",
"author": "Jan",
"timestamp": "2018-08-08T08:07:50",
"content": "We live in a great time and age, where it is easier to program a computer doing lot’s of difficult stuff with greater easy then combining a simple motor with a few transistors and a set of limit switches.But ... | 1,760,374,266.004802 | ||
https://hackaday.com/2018/08/07/failed-tool-turned-exploded-wall-art/ | Failed Tool Turned Exploded Wall Art | Tom Nardi | [
"hardware",
"Teardown",
"Tool Hacks"
] | [
"air tools",
"exploded view",
"harbor freight",
"shadow box",
"wall art"
] | Few things hit a hacker or maker harder than when a beloved tool goes to that Big Toolbox In The Sky. It can be hard to trash something that’s been with you through countless repairs and teardowns, made all the worse by the fact most employers don’t recognize “Tool Bereavement” as a valid reason to request time off. Ma... | 16 | 10 | [
{
"comment_id": "4833239",
"author": "Lee Hart",
"timestamp": "2018-08-08T02:26:47",
"content": "Long ago when I was a TV repairman, we made “blown component” art in the shop where I worked. We started with a wire hung from the ceiling. When a tech found a bad part, he soldered it onto the wire. Ove... | 1,760,374,266.303463 | ||
https://hackaday.com/2018/08/07/vcf-west-homebrew-lisp-machines-and-injection-molded-pdps/ | VCF West: Homebrew Lisp Machines And Injection Molded PDPs | Brian Benchoff | [
"cons"
] | [
"homebrew computer",
"lisp",
"Lisp machine",
"pdp",
"VCF West"
] | Someone walks into the Vintage Computer Festival and asks, ‘what’s new?’. It’s a hilarious joke, but there is some truth to it. At this year’s Vintage Computer Festival West, the exhibit hall wasn’t just filled to the brim with ancient computers from the Before Time. There was new hardware. There was hardware that woul... | 19 | 6 | [
{
"comment_id": "4832558",
"author": "Bob Coggeshall (@BobCoggeshall)",
"timestamp": "2018-08-07T23:08:22",
"content": "My EE department had a PDP-11/70. It ran RSX-11/M during the day. In retrospect, I can’t believe they let an emaciated zitty 20 year old undergrad exclaiming something about “UNIX”... | 1,760,374,266.593987 | ||
https://hackaday.com/2018/08/07/remote-controlled-electric-snowblower-sports-fpv-for-safety/ | Remote Controlled Electric Snowblower Sports FPV For Safety | Dan Maloney | [
"Misc Hacks"
] | [
"BLDC",
"FPV",
"remote control",
"snow",
"snowblower"
] | As summer scorches the northern hemisphere, here’s something to cool your thoughts: winter is only four months away. And with it will come the general misery and the proclamations that “It’ll never be warm again,” not to mention the white stuff and the shoveling. Or perhaps not, if you’re lucky enough to have
a semi-au... | 27 | 5 | [
{
"comment_id": "4831928",
"author": "Carl",
"timestamp": "2018-08-07T20:04:04",
"content": "I’m seeing a headline:“Toddler killed by bizarre self-driving snowblower.”",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4832027",
"author": "Whispers to Id... | 1,760,374,266.371406 | ||
https://hackaday.com/2018/08/07/video-quick-bit-power-harvesting-hacks/ | Video Quick Bit: Power Harvesting Hacks | Brian Benchoff | [
"Hackaday Columns",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"Hackaday Prize Update",
"Power Harvesting Challenge",
"video quick-bit"
] | Majenta Strongheart is back again, this time taking a look
at some of the coolest power harvesting projects
in this year’s
Hackaday Prize
.
The entire idea of the Power Harvesting Challenge is to get usable power from
something
, be it solar energy, a rushing waterfall, or fueling steam turbines with hamsters. [Cole B]... | 5 | 4 | [
{
"comment_id": "4832364",
"author": "Jupiter Belic",
"timestamp": "2018-08-07T22:03:02",
"content": "Turning hamsters into steam is a bit of a disturbing mental image.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4832766",
"author": "light beams",
"... | 1,760,374,266.639411 | ||
https://hackaday.com/2018/08/06/fxsolver-is-a-math-notebook-for-engineers/ | FxSolver Is A Math Notebook For Engineers | Al Williams | [
"internet hacks"
] | [
"calculator",
"formula",
"math",
"online"
] | If you like to rely on the web to do your electronics and computer math, you’ll want to bookmark
FxSolver
. It has a wide collection of formulae from disciplines ranging from electronics, computer science, physics, chemistry, and mechanics. There are also the classic math formulations, too.
When you first hit the page ... | 12 | 5 | [
{
"comment_id": "4828308",
"author": "PreferLinux",
"timestamp": "2018-08-07T02:36:56",
"content": "I just had a look for resonance stuff myself, and they actually do have a formula labelled as calculating the resonant frequency of an LC circuit, but it actually converts radians per second to Hz…",
... | 1,760,374,266.53477 | ||
https://hackaday.com/2018/08/06/dog-or-catapult-controls-the-speed-of-the-feed/ | Dog-Or-Catapult Controls The Speed Of The Feed | Kristina Panos | [
"Arduino Hacks"
] | [
"Arduino Uno",
"continuous rotation servo",
"dog feeder",
"limit switch",
"pet feeder",
"servo"
] | [NathanKing] has a cute, rambunctious pupper who eats way too fast for her own good. He’s tried various distribution methods intended to get her to slow down, but she’s just too excited to eat. [Nathan]’s latest solution is to
launch the food piece by piece using a catapult
. The dog loves the gamified feeding method, ... | 9 | 5 | [
{
"comment_id": "4827423",
"author": "Anon",
"timestamp": "2018-08-06T23:13:19",
"content": "That no pupper… that a doggo!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4827866",
"author": "Chris Knight",
"timestamp": "2018-08-07T01:03:27",
"conte... | 1,760,374,266.682198 | ||
https://hackaday.com/2018/08/06/vfc-west-all-the-floptical-disks/ | VCF West: All The Floptical Disks | Brian Benchoff | [
"cons"
] | [
"Floppy drives",
"floptical",
"VCF West"
] | Nowadays, if you want to transfer a file from one computer to another, you’d just send it over the network. In those rare occasions where that won’t work, a USB thumb drive will do. It wasn’t always this way, and it was much more confusing; back in the day when we had floppy drives. We had floptical drives. A single un... | 47 | 14 | [
{
"comment_id": "4826245",
"author": "TGT",
"timestamp": "2018-08-06T20:17:45",
"content": "A vinyl CD-ROM? What… how.. huh?? Do you put it in a standard CD drive? Do you need a special spider to make it fit a phonograph spindle? Is it 45 RPM? This is so baffling to me.",
"parent_id": null,
... | 1,760,374,266.826016 | ||
https://hackaday.com/2018/08/06/the-p-cell-is-exactly-what-you-might-suspect/ | The “P Cell” Is Exactly What You Might Suspect | Donald Papp | [
"chemistry hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"galvanic cell",
"p cell",
"power generation",
"urea",
"urine",
"urine battery"
] | [Josh Starnes] had a dream. A dream of a device that could easily and naturally be activated to generate power in an emergency, or just for the heck of it. That device takes in urea, which is present in urine, and uses it to generate a useful electrical charge. [Josh] has, of course, named this device
the P Cell
.
An e... | 34 | 15 | [
{
"comment_id": "4825566",
"author": "light beams",
"timestamp": "2018-08-06T19:03:45",
"content": "It’s a low efficiency zinc-copper cell. For the cost, environmental impact, mass and volume this could be beaten by a AA cell from the supermarket.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,374,266.904577 | ||
https://hackaday.com/2018/08/06/review-a-20-mhz-pocket-scope-for-not-a-lot/ | DSO Nano 3 Review: A 20 MHz Pocket ‘Scope For Not A Lot | Jenny List | [
"Hackaday Columns",
"Reviews",
"Tool Hacks"
] | [
"DSO nano 3",
"oxcilloscope",
"pocket oscilloscope",
"pocket scope",
"scope"
] | The oscilloscope is an essential tool of any electronics bench, and it is also an instrument whose capabilities have expanded exponentially over the decades. Your entirely analogue CRT ‘scope of a few decades ago has now been supplanted by a digital device that takes on many of the functions of both an expensive multim... | 45 | 11 | [
{
"comment_id": "4824842",
"author": "Matt Cramer",
"timestamp": "2018-08-06T17:11:52",
"content": "A lot of the other DSO Nano scopes have been rumored to be based off of MP3 players, but this is the most blatant yet.Is an oxcilloscope an oscilloscope that is about as smart as an ox?",
"parent_... | 1,760,374,267.02183 | ||
https://hackaday.com/2018/08/06/learn-fpga-fast-with-hackadays-fpga-boot-camp/ | Learn FPGA Fast With Hackaday’s FPGA Boot Camp | Al Williams | [
"FPGA",
"Hackaday Columns",
"how-to",
"Slider"
] | [
"fpga",
"hackaday.io",
"lattice",
"tutorial"
] | FPGAs have gone from being a niche product for people with big budgets to something that every electronics experimenter ought to have in their toolbox. I am always surprised at how many people I meet who tell me they are interested in using FPGAs but they haven’t started. If you’ve been looking for an easy way to get s... | 39 | 10 | [
{
"comment_id": "4824596",
"author": "Ostracus",
"timestamp": "2018-08-06T16:05:53",
"content": "Wonder how many motherboards use them?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4824610",
"author": "Al Williams",
"timestamp": "2018-08-06... | 1,760,374,267.109484 | ||
https://hackaday.com/2018/08/06/feeling-the-heat-of-high-frequency-trading/ | Feeling The Heat Of High-Frequency Trading | Dan Maloney | [
"Business",
"Engineering",
"Featured",
"Original Art"
] | [
"absorption",
"delay",
"financial",
"high-frequency trading",
"humidity",
"propagation",
"stocks",
"trading",
"weather"
] | It’s high summer here in North America, and for a lot of us, this one has been a scorcher. Media reports have been filled with coverage of heat wave after heat wave, with temperature records falling like dominoes.
But as they say, it’s not the heat, it’s the humidity, and that was painfully true in the first week of Ju... | 45 | 12 | [
{
"comment_id": "4824209",
"author": "Alexander Wikström",
"timestamp": "2018-08-06T14:13:51",
"content": "And this article sums up why the stock market value of a company doesn’t say much about the companies actual value.And it is also interesting to see how the idea of investing in something and o... | 1,760,374,267.198266 | ||
https://hackaday.com/2018/08/06/mouse-trap-game-used-as-an-actual-mouse-trap/ | Mouse Trap Game Used As An Actual Mouse Trap | Tom Nardi | [
"classic hacks",
"Toy Hacks"
] | [
"board game",
"mouse trap",
"trap"
] | Just when you thought you had explored all the weird stuff on YouTube, along comes [Shawn Woods] with his channel dedicated to testing different types of mouse traps. His weekly videos demonstrate the construction and ultimate effectiveness of everything from primitive traps that can be made in the field from sticks an... | 7 | 3 | [
{
"comment_id": "4824272",
"author": "Matt Cramer",
"timestamp": "2018-08-06T14:33:23",
"content": "I was hoping to see the mouse end up in the little plastic cage… although that probably wouldn’t actually hold the mouse very well.",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,267.245279 | ||
https://hackaday.com/2018/08/06/rolling-out-a-slick-rotary-phase-converter/ | Rolling Out A Slick Rotary Phase Converter | Dan Maloney | [
"Slider",
"Tool Hacks"
] | [
"3-phase",
"Electric motor",
"lathe",
"Machine tool",
"mill",
"milling machine",
"rotary phase converter",
"RPC",
"single-phase",
"split-phase",
"variable frequency drive"
] | Home machinists can often find great deals on used industrial equipment, and many a South Bend lathe or Bridgeport milling machine has followed someone home. Then comes the moment to plug it in, and the new owner discovers that the three-phase plug needed to power the new beast is nowhere to be found in the shop. Thus ... | 46 | 10 | [
{
"comment_id": "4823139",
"author": "Colin Smith",
"timestamp": "2018-08-06T08:23:06",
"content": "Curiously, why didn’t you use a 3phase VFD? They take in single phase and spit out 3 phase SPWM that even allows you to change the frequency.",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,267.332584 | ||
https://hackaday.com/2018/08/05/spot-welding-plastic/ | Spot Welding …Plastic? | Ben James | [
"Misc Hacks"
] | [
"bond",
"bottle",
"hdpe",
"jug",
"milk",
"plastic",
"soldering iron",
"spot",
"welding"
] | Plastic milk bottles, when your project or prototype needs an urgent source of plastic, they are often the first thing to hand. Convenient and flexible, but strong at the same time and usually free, they’re the ultimate source of material in a pinch. However, when it comes to actually manipulating the HDPE plastic they... | 12 | 10 | [
{
"comment_id": "4822758",
"author": "???? ????",
"timestamp": "2018-08-06T05:15:58",
"content": "The problem with a lot of plastic is that it has a memory and the moment you hit a fabricated part with heat it starts changing shape in the most annoying ways.",
"parent_id": null,
"depth": 1,
... | 1,760,374,267.388731 | ||
https://hackaday.com/2018/08/05/a-plasma-speaker-using-a-tl494/ | A Plasma Speaker Using A TL494 | Jenny List | [
"hardware"
] | [
"plasma",
"plasma speaker",
"pwm",
"TL494"
] | We’re used to loudspeakers as circular components with a paper cone and a big magnet inside which is suspended a coil that is connected to our audio amplifier. But moving-coil speakers are not the only way to create sound from electricity, there are one or two other weapons in the audio designer’s arsenal.
One of the m... | 23 | 7 | [
{
"comment_id": "4822252",
"author": "???? ????",
"timestamp": "2018-08-06T02:27:17",
"content": "I wonder if you did an FFT of your audio and then had tuned helmholtz resonators for each band with the plasma electrodes for each band inside the corresponding resonators if you could get a richer soun... | 1,760,374,267.504136 | ||
https://hackaday.com/2018/08/05/hackaday-links-august-5-2018/ | Hackaday Links: August 5, 2018 | Brian Benchoff | [
"Hackaday Columns",
"Hackaday links"
] | [
"DEFCAD",
"government auction",
"MOS",
"MOS Technology",
"printrbot"
] | Here’s something of historical interest. The daughter of Terry Holdt, project manager for the 6502, cleaned out a garage and
found shelves full of MOS Technology binders
, test results, notes, instructions for processes, letters to customers, and datasheets full of errata. Some of these documents
have been posted on Tw... | 18 | 10 | [
{
"comment_id": "4821356",
"author": "Ostracus",
"timestamp": "2018-08-05T23:06:57",
"content": "Does the Internet Archive have the needed scanning equipment to do what Google did with books?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4822067",
"... | 1,760,374,267.445259 | ||
https://hackaday.com/2018/08/05/how-to-run-a-clock-for-a-century/ | How To Run A Clock For A Century | Rich Hawkes | [
"clock hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"clock",
"power for a century",
"rtc",
"stm32l476",
"ultra low power"
] | What’s going to keep a clock running for a century, unattended? Well, whatever’s running it will have to sip power, and it’s going to need a power source that will last a long time. [Jan Waclawek] is looking into solar power for daytime, and capacitors for nighttime, to keep his
clock running for
a hundred years
.
This... | 53 | 25 | [
{
"comment_id": "4820922",
"author": "light beams",
"timestamp": "2018-08-05T20:07:39",
"content": "Seems like a more tested approaches are:https://en.wikipedia.org/wiki/Oxford_Electric_Bellorhttps://en.wikipedia.org/wiki/Beverly_Clock",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,267.783444 | ||
https://hackaday.com/2018/08/05/vcf-west-adding-a-front-panel-to-the-6502/ | VCF West: Adding A Front Panel To The 6502 | Brian Benchoff | [
"cons"
] | [
"6502",
"cons",
"front panel",
"single board computer",
"VCF West",
"vintage computer"
] | When you think about vintage computers from the 1970s, the first thing that should spring to mind are front panels loaded up with switches, LEDs, and if you’re really lucky, a lock with a key. Across all families of CPUs from the ’70s, you’ll find front panel setups for Z80s and 8080s, but strangely not the 6502. That’... | 19 | 8 | [
{
"comment_id": "4820484",
"author": "BrightBlueJim",
"timestamp": "2018-08-05T18:02:27",
"content": "I don’t understand. What technology didn’t exist in 1979 or so, to do a front panel for a 6502? Was the original 6502 not fully static? It seems to me that the only chip available now and not the... | 1,760,374,267.982417 | ||
https://hackaday.com/2018/08/07/recorded-programming-thanks-to-bing-crosby/ | Recorded Programming — Thanks To Bing Crosby | Al Williams | [
"Hackaday Columns",
"History",
"Original Art"
] | [
"bing crosby",
"electric transcription",
"history",
"magnetic tape",
"tape recorder"
] | If you look up Bing Crosby in Wikipedia, the first thing you’ll notice is his real name was Harry. The second thing you’ll read, though, is that he is considered the first “multimedia star.” In 1948, half of the recorded music played on the air was by Bing Crosby. He also was a major motion picture star and a top-selli... | 17 | 11 | [
{
"comment_id": "4831316",
"author": "Salman",
"timestamp": "2018-08-07T17:20:10",
"content": "He was also Denise Crosby’s grandfather (Tasha Yar from STTNG)",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4832986",
"author": "Tom Nardi",
"tim... | 1,760,374,267.91955 | ||
https://hackaday.com/2018/08/07/the-square-inch-project-rides-again/ | The Square-Inch Project Rides Again! | Elliot Williams | [
"contests",
"Hackaday Columns"
] | [
"PCB design",
"square inch contest",
"Square inch project"
] | Want to play a game? Your challenge is to do something incredible with a printed circuit board that measures no more than one inch by one inch. It’s
The Return of the One Square Inch Project
and it’s going to be amazing!
We can’t believe that it’s been three years! The original
One Square Inch Project
was a contest dre... | 37 | 8 | [
{
"comment_id": "4831364",
"author": "Ren",
"timestamp": "2018-08-07T17:34:00",
"content": "I thought you were going to do a “One Cubic Inch” contest this time!B^)It is open to entries from other than Myanmar, Liberia, and the USA, right?",
"parent_id": null,
"depth": 1,
"replies": [
... | 1,760,374,267.861396 | ||
https://hackaday.com/2018/08/07/even-the-playstation-2-cant-escape-java/ | Even The PlayStation 2 Can’t Escape Java | Tom Nardi | [
"Playstation Hacks",
"Software Development"
] | [
"java",
"java grinder",
"ps2",
"sony"
] | Love it or hate it, you can’t deny that Java has a pretty impressive track record in terms of supported platforms. Available on everything from flip phones to DVD players, not to mention computers, Oracle once famously claimed that Java runs on three billion devices. An estimate that, in truth, is probably on the low s... | 11 | 9 | [
{
"comment_id": "4831111",
"author": "RFP-A",
"timestamp": "2018-08-07T16:25:36",
"content": "I think it was Sun that claimed 3 billion devices.The current Oracle Java site claims ’15 billion devices run java’ in addition to there being 5 million students studying Java and there being 10 million Jav... | 1,760,374,268.128803 | ||
https://hackaday.com/2018/08/07/lathe-headstock-alignment/ | Lathe Headstock Alignment: Cutting A Test Bar | Quinn Dunki | [
"Featured",
"Skills",
"Slider",
"Tool Hacks"
] | [
"alignment",
"headstock",
"how to align a headstock",
"lathe",
"leveling",
"machine tools"
] | Let’s say you’ve recently
bought a lathe
and
set it up in your shop
. Maybe you’ve even gone and
leveled it
like a boss. You’re ready to make chips, right? Well, not so fast. As real machinists will tell you, you can use all the levels and lasers and whatever that you want, but the proof is in the cut. Precision leveli... | 39 | 14 | [
{
"comment_id": "4830726",
"author": "mac012345",
"timestamp": "2018-08-07T14:41:30",
"content": "” If they are different, the machine is cutting a taper, which means your bed has some twist”Or the fixed headstock is not aligned correctly. If you are not sure of thatm, you cannot tell them appart.S... | 1,760,374,268.073553 | ||
https://hackaday.com/2018/08/07/diy-scientific-calculator-powered-by-pi-zero/ | DIY Scientific Calculator Powered By Pi Zero | Tom Nardi | [
"3d Printer hacks",
"handhelds hacks",
"Raspberry Pi",
"Slider"
] | [
"3d printed",
"calculator",
"custom PCB",
"Raspberry Pi Zero"
] | It’s the eternal question hackers face: do you built it, or do you buy it? The low cost and high availability of electronic gadgets means we increasingly take the latter option. Especially since it often ends up that building your own version will cost more than just buying a commercial product; and that’s
before
you f... | 25 | 9 | [
{
"comment_id": "4830103",
"author": "Cyk",
"timestamp": "2018-08-07T11:27:14",
"content": "There’s that old TI30 feeling again: Having to carry around at least 2 replacement batteries, because it sucks them dry in no time.",
"parent_id": null,
"depth": 1,
"replies": [
{
"c... | 1,760,374,270.143337 | ||
https://hackaday.com/2018/08/07/sushi-snarfing-barbie-uses-solenoid-to-swallow/ | Sushi-Snarfing Barbie Uses Solenoid To Swallow | Kristina Panos | [
"Arduino Hacks"
] | [
"Arduino Uno",
"barbie",
"Joystick",
"ldr",
"neopixel",
"solenoid",
"stepper motor"
] | The view from America has long seen French women as synonymous with thin and/or beautiful. France is well-known for culinary skill and delights, and yet many of its female inhabitants seem to view eating heartily as passé. At a recent workshop devoted to creating DIY amusements, [Niklas Roy] and [Kati Hyyppä] built
an ... | 15 | 5 | [
{
"comment_id": "4830233",
"author": "sam",
"timestamp": "2018-08-07T12:01:23",
"content": "As long as a human body is eating a reduced carbo diet where some or even majority ketosis fat for fuel burning occurs and fat is not hoarded unburned as it is in an American style cheap carb-to-fat storage d... | 1,760,374,269.984344 | ||
https://hackaday.com/2018/08/06/more-suspension-than-necessary/ | More Suspension Than Necessary | Brian McEvoy | [
"Transportation Hacks"
] | [
"bicycle",
"build",
"colin furze",
"fail",
"mountain bike",
"newton",
"silly",
"springs"
] | The triangular frame of a traditional mountain bike needs to be the most rigid structure, and a triangle can be a very sturdy shape. So
[Colin Furze] throws a spanner in the works
, or, in this case, a bunch of springs. The video is below the break, but please try to imagine you are at a party, eyeballing some deliciou... | 20 | 12 | [
{
"comment_id": "4828770",
"author": "RP",
"timestamp": "2018-08-07T05:17:16",
"content": "“approximately a training unicycle mated with a boat anchor.”You sir, win the internet for today…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4828895",
"author": ... | 1,760,374,270.462647 | ||
https://hackaday.com/2018/08/05/custom-designed-keyboard-needs-a-custom-made-metal-case/ | Custom Designed Keyboard Needs A Custom Made Metal Case | Rich Hawkes | [
"Peripherals Hacks"
] | [
"custom keyboard",
"ergodox",
"mechanical keyboard",
"milled aluminum case"
] | It’s hardly news that mechanical keyboard users love their keyboards. When it comes to custom keyboards, though, [Cameron Sun] has taken things to the next level, by
designing his own keyboard and then having the case custom milled from aluminum
. If a Macbook and an
ErgoDox
had a baby, it would look like this!
[Came... | 9 | 2 | [
{
"comment_id": "4820268",
"author": "Jan",
"timestamp": "2018-08-05T15:13:38",
"content": "and it has happened again. Please look at the 3 switched in the top-center of the keyboard.Why… why… do lot’s and lot’s of people always seem to fail to mount/adjust their switches to the correct heigth.Now t... | 1,760,374,269.933369 | ||
https://hackaday.com/2018/08/05/fingerprint-padlock-teardown/ | Teardown Of A Fingerprint Padlock | Al Williams | [
"Teardown"
] | [
"fingerprint",
"padlock",
"teardown"
] | We wouldn’t mind tearing down a fingerprint scanner, but we hate to bust up our expensive laptop or cell phone. [Julian], however, got a hold of a fingerprint scanning padlock and
was willing to tear it apart
for our benefit. The video appears below.
The padlock is a simple enough little device with a cable lock instea... | 8 | 6 | [
{
"comment_id": "4820192",
"author": "Ostracus",
"timestamp": "2018-08-05T13:21:35",
"content": "The one on ultrasonic looks interesting. Wonder if that and capacitive could be combined?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4820208",
"author": "N... | 1,760,374,269.885873 | ||
https://hackaday.com/2018/08/05/how-much-current-does-that-thing-draw/ | How Much Current Does That Thing Draw? | Al Williams | [
"Tool Hacks"
] | [
"current monitoring",
"power supply",
"sourcemeter"
] | If you ask us how to measure the current draw from something, we’ll break a power lead and put a multimeter in series with the power supply. If that’s not handy, we’ve been known to take the fuse out of the power supply and replace it with the meter. Crude, but effective. But if you have about $8,000 sitting around, yo... | 28 | 13 | [
{
"comment_id": "4819814",
"author": "macegr",
"timestamp": "2018-08-05T08:30:11",
"content": "“But more than that, this seems like this would be a highly doable hacker project. There are lots of ways to measure current from a shunt resistor to a hall effect device.”Sure, but doing it in a repeatabl... | 1,760,374,270.410351 | ||
https://hackaday.com/2018/08/04/cheap-psoc-enables-electrochemistry-research/ | Cheap PSoC Enables Electrochemistry Research | Dan Maloney | [
"chemistry hacks"
] | [
"cypress",
"electrochemistry",
"electrode",
"oxidation",
"PSoC",
"redox",
"reduction"
] | You may think electrochemistry sounds like an esoteric field where lab-coated scientists labor away over sophisticated instruments and publish papers that only other electrochemists could love. And you’d be right, but only partially, because electrochemistry touches almost everything in modern life. For proof of that l... | 8 | 4 | [
{
"comment_id": "4820034",
"author": "Robert Mateja",
"timestamp": "2018-08-05T10:57:28",
"content": "GRBL port, electrochemistry… this PSoC sure starts looks interesting. Same deal as ex after few bottles.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "482031... | 1,760,374,270.027874 | ||
https://hackaday.com/2018/08/04/memristors-on-a-chip-solve-partial-differential-equations/ | Memristors On A Chip Solve Partial Differential Equations | Al Williams | [
"Parts"
] | [
"analog computer",
"differential equations",
"memristor"
] | We were always taught that the fundamental passive components were resistors, capacitors, and inductors. But in 1971, [Leon Chua] introduced the idea of a memristor — a sort of resistor with memory. HP created one in 2008 and since then we haven’t really had the burning need to use one. In
a recent Nature article
, [Mo... | 17 | 6 | [
{
"comment_id": "4818705",
"author": "Ostracus",
"timestamp": "2018-08-05T02:13:57",
"content": "Memristor is much like graphene coming soon to a solution near you.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4819296",
"author": "BrightBlueJim",
"ti... | 1,760,374,270.080766 | ||
https://hackaday.com/2018/08/04/help-save-some-of-australias-computer-history-from-the-bulldozers/ | Help Save Some Of Australia’s Computer History From The Bulldozers | Jenny List | [
"classic hacks",
"News"
] | [
"Australia",
"computer history",
"museum",
"warehouse"
] | When multiple tipsters write in to tell us about a story, we can tell it’s an important one. This morning we’ve received word that
the holding warehouse of the Australian Computer Museum Society in the Sydney suburb of Villawood is to be imminently demolished
, and they urgently need to save the artifacts contained wit... | 18 | 12 | [
{
"comment_id": "4818393",
"author": "aki009",
"timestamp": "2018-08-05T00:51:01",
"content": "Awesome place. I’d *love* to get those PDP-11 engineering drawings to scan in…And that Amiga 2000 seemed nice. And the AMIGA ROM manuals were a trip down memory lane.",
"parent_id": null,
"depth": ... | 1,760,374,270.253599 | ||
https://hackaday.com/2018/08/04/looking-at-wind-turbines-from-a-different-angle/ | Looking At Wind Turbines From A Different Angle | Lewin Day | [
"Slider",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"wind",
"Wind turbine"
] | When we think of wind turbines, the first thing that usually comes to mind is the typical Sim City-esque type – 3 blades, gigantic, and wired into the municipal power grid. In truth, the world of wind power generation is far more varied indeed – as
[Vittorio]’s vertical-axis wind turbine shows us.
So what exactly is a ... | 22 | 7 | [
{
"comment_id": "4817159",
"author": "Ostracus",
"timestamp": "2018-08-04T20:03:33",
"content": "” In truth, the world of wind power generation is far more varied indeed – as [Vittorio]’s vertical-axis wind turbine shows us.”Same could be said with hydro.",
"parent_id": null,
"depth": 1,
... | 1,760,374,270.197885 | ||
https://hackaday.com/2018/08/03/voltage-monitor-relay-is-more-than-meets-the-eye/ | Voltage Monitor Relay Is More Than Meets The Eye | Tom Nardi | [
"car hacks",
"Microcontrollers",
"Transportation Hacks"
] | [
"automotive",
"PIC16F",
"relay",
"solid state relay"
] | Automotive components that have a hidden secondary function are usually limited to cartoons and Michael Bay movies, but this project that [Jesus Echavarria] created for a client is a perhaps as close as we’re likely to get in the near future. The final product certainly
looks
like a standard automotive relay, but a pee... | 34 | 12 | [
{
"comment_id": "4815509",
"author": "jioh",
"timestamp": "2018-08-03T20:11:47",
"content": "But why the PIC? It’s ancient and has memory banking that drives me to the insanity. You could’ve used modern STM32 micro that has GCC and OpenOCD support.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,374,270.603603 | ||
https://hackaday.com/2018/08/03/intuitive-musical-books-accompany-alzheimers-patients-memories/ | Intuitive Musical Books Accompany Alzheimer’s Patients’ Memories | Kristina Panos | [
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"Alzheimer's",
"CdS cell",
"tilt switch"
] | If you have a loved one with Alzheimer’s, you know how difficult it can be to hold a conversation with them that doesn’t constantly go in circles. A good way to keep them focused is to use conversation pieces like pictures and familiar objects from their past. Something particularly poignant might uncork a flood of mem... | 10 | 3 | [
{
"comment_id": "4815387",
"author": "Ostracus",
"timestamp": "2018-08-03T18:40:47",
"content": "I’ve found singing something they know can have them singing along with it.",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4815396",
"author": "Bruce Perens K6... | 1,760,374,270.719272 | ||
https://hackaday.com/2018/08/03/beginning-ble-experiments-and-making-everything-better/ | Beginning BLE Experiments And Making Everything Better | Inderpreet Singh | [
"Hackaday Columns",
"how-to",
"Wireless Hacks"
] | [
"Beginners",
"ble",
"bluetooth",
"gatttool",
"linux"
] | Successfully connecting things without physical wires has a profound effect on the maker brain. Machines talking to each other without any cables is as amazing today as it was a decade ago. When Bluetooth came out, it was a breakthrough since it offered a wireless way to connect cellphones to a PC. But Bluetooth is a c... | 15 | 10 | [
{
"comment_id": "4815322",
"author": "q2dg (@q2dg)",
"timestamp": "2018-08-03T17:11:53",
"content": "I really miss SPP in BLE",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4815359",
"author": "Ostracus",
"timestamp": "2018-08-03T17:54:19",
"conten... | 1,760,374,270.671312 | ||
https://hackaday.com/2018/08/03/unofficial-badges-get-official-recognition-at-def-con-badge-life-contest/ | Unofficial Badges Get Official Recognition At DEF CON: Badge Life Contest | Mike Szczys | [
"cons"
] | [
"badge life contest",
"badgelife",
"contest",
"DEF CON",
"DEFCON 26"
] | Badge·Life
(noun)
: the art of spending too much time, energy, money, and creativity to design and produce amazing custom electronics and get them into the hands of those who appreciate incredible craftsmanship.
Brand new to DEF CON 26 is
the Badge Life Contest
to celebrate the creativity and ingenuity that gets poured... | 3 | 1 | [
{
"comment_id": "4815312",
"author": "zakqwy",
"timestamp": "2018-08-03T17:02:30",
"content": "Checked out the badgelife.org website but couldn’t find any info on who is running it. Any insights?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4815358",
... | 1,760,374,271.227955 | ||
https://hackaday.com/2018/08/03/junk-bin-spin-coater-uses-modded-case-fan/ | Junk Bin Spin Coater Uses Modded Case Fan | Tom Nardi | [
"Science",
"Tool Hacks"
] | [
"fan",
"lab equipment",
"pwm",
"semiconductor",
"spin coat",
"vacuum pump"
] | We’ve all been there: you need a specific tool or gadget to complete a project, but it’s not the kind of thing you necessarily want to fork over normal retail price for. It could be something you’re only going to use once or twice, or maybe you’re not even sure the idea is going to work and don’t want to invest too muc... | 4 | 2 | [
{
"comment_id": "4815285",
"author": "2ftg",
"timestamp": "2018-08-03T16:04:11",
"content": "The “vacuum chamber complete with magnetically controlled manipulator arm.” link links to the tube furnace article.Neat build overall. Used to build magstirrers when younger from PC fans. Glue a HDD magnet ... | 1,760,374,271.129677 | ||
https://hackaday.com/2018/08/03/when-is-wrought-iron-not-wrought-iron/ | When Is Wrought Iron Not Wrought Iron? | Jenny List | [
"Featured",
"Interest"
] | [
"blacksmith",
"blacksmithing",
"iron",
"wrought iron"
] | I grew up with a blacksmith for a parent, and thus almost every metalworking processes seems entirely normal to have as part of everyday life throughout my childhood. There seemed to be nothing we owned that couldn’t be either made or repaired with the application of a bit of welded steel. Children of blacksmiths grow ... | 71 | 19 | [
{
"comment_id": "4815214",
"author": "ChrisO",
"timestamp": "2018-08-03T14:20:31",
"content": "Very nice and informative. Though… now I will be inclined to correct folks who incorrectly describe a steel gate, and thus, send them to their safe space. Next could someone let us know what puts the ‘rank... | 1,760,374,271.367573 | ||
https://hackaday.com/2018/08/03/classy-corexy-build-breaks-down-the-design-pinchpoints/ | Classy CoreXY Build Breaks Down The Design Pinchpoints | Sonya Vasquez | [
"3d Printer hacks"
] | [
"CoreXY",
"Mark Rehorst",
"UMMD 3D Printer"
] | Ever since [Ilan Moyer] published the design, CoreXYs have been exploding in the homebrew 3D Printer community. Nevertheless, not all designs are created equal, and a solid design means adhering to some unspoken constraints. Fear not, though. [Mark Rehorst’s]
blog post
pulls the lid off these constraints and puts them ... | 5 | 4 | [
{
"comment_id": "4815271",
"author": "Bill dussault",
"timestamp": "2018-08-03T15:36:05",
"content": "Great job Mark! Put milwaukee on the nap!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4815494",
"author": "mrehorst",
"timestamp": "2018-08-03T20:0... | 1,760,374,271.027286 | ||
https://hackaday.com/2018/08/03/glimmies-as-logic/ | Glimmies, As Logic | Jenny List | [
"Toy Hacks"
] | [
"glimmies",
"logic",
"logic gates",
"tous",
"toy logic"
] | [Jacob Christ] writes in with a hack that’s going to be this summer’s fidget spinner. Why? The favourite toy of his youngster’s generation is a Glimmie. And while fidget spinners were useful for, well, spinning, the small animal-like Glimmie
seems to have an unexpected property
, they can function as logic gates.
They ... | 10 | 6 | [
{
"comment_id": "4814985",
"author": "McErer",
"timestamp": "2018-08-03T10:15:59",
"content": "And now build an oscillator!",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4815794",
"author": "jacobchrist",
"timestamp": "2018-08-04T00:48:36",
... | 1,760,374,271.463 | ||
https://hackaday.com/2018/08/02/__trashed-16/ | Ancient Teletype Revived In Labor Of Retrocomputing Love | Dan Maloney | [
"Retrocomputing"
] | [
"baudot",
"repair",
"restoration",
"retrocomputing",
"teletype",
"thyratron"
] | Readers with not too many years under their belts may recall a time when the classic background sound effect for radio and television news programs included a staccato mechanical beat, presumably made by the bank of teletype machines somewhere in the studio, clattering out breaking stories onto rolls of yellow paper. I... | 19 | 10 | [
{
"comment_id": "4815011",
"author": "Karl",
"timestamp": "2018-08-03T10:52:12",
"content": "I remember different versions of these machines in radio stations I worked at in the 1970’s. Those looked similar but didn’t have keyboards. Noisy and greasy indeed. The ones I saw had a type of acoustic-ins... | 1,760,374,271.186019 | ||
https://hackaday.com/2018/08/02/web-pages-via-forth/ | Web Pages Via Forth | Al Williams | [
"Software Development",
"Software Hacks"
] | [
"forth",
"javascript",
"wasm",
"webassembly"
] | Forth. You either love it or you hate it. If you have struggled to work on tiny microcontrollers, you probably are in the first camp. After all, bringing up a minimal Forth system is pretty simple and requires very little resources on the CPU. Once you have such an environment it is then easy to extend Forth in Forth. ... | 16 | 7 | [
{
"comment_id": "4814644",
"author": "Clara",
"timestamp": "2018-08-03T02:34:54",
"content": "Am I correct in thinking that Waforth is the Wario version of Forth?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4814653",
"author": "RÖB",
"timestamp": "2... | 1,760,374,271.082408 | ||
https://hackaday.com/2018/08/02/engineering-the-perfect-throw-for-rock-skipping/ | Engineering The Perfect Throw For Rock Skipping | Dan Maloney | [
"Misc Hacks"
] | [
"ballistics",
"design",
"engineering",
"rock skipping",
"trajectory"
] | Summer is here (at least in the Northern Hemisphere) and World’s Greatest Uncle [Mark Rober] is at it again with his nieces and nephews. This time he’s all about skipping stones, that shoreline pastime that kids sometimes find frustrating and adults find humiliating when trying to demonstrate the technique.
But what ex... | 11 | 5 | [
{
"comment_id": "4814576",
"author": "Gareth",
"timestamp": "2018-08-03T01:31:44",
"content": "Didn’t Barnes Wallis do this back in 1940?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4814660",
"author": "Leithoa",
"timestamp": "2018-08-03T0... | 1,760,374,271.418347 | ||
https://hackaday.com/2018/08/02/cd-image-via-twitter-a-handcrafted-game-disc/ | CD Image Via Twitter: A Handcrafted Game Disc | Al Williams | [
"Software Development",
"Software Hacks"
] | [
"bootable cdrom",
"bootloader",
"cdrom",
"ecma119",
"el torito",
"iso9660",
"nasm",
"twitter",
"x86 assembly"
] | Humans can turn anything into a competition. Someone always wants to be faster or drive a ball farther. Technical pursuits are no different, which is why a lot of people overclock or play regular expression golf. [Alok Menghrajani] sets himself some odd challenges. A few years ago, he hand-built a bootable floppy image... | 7 | 4 | [
{
"comment_id": "4814041",
"author": "herbert",
"timestamp": "2018-08-02T20:32:06",
"content": "This reminds me to check for new poc gtfo releases. A cool spin on this would be to put TinyBasic on it",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4814168",
... | 1,760,374,271.55218 | ||
https://hackaday.com/2018/08/02/thermal-actuators-hydraulic-motors-that-feed-on-temperature-changes/ | Thermal Actuators: Hydraulic Motors That Feed On Temperature Changes | Donald Papp | [
"chemistry hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"hydraulics",
"pcm",
"phase change materials"
] | These
Fluid Displacement Thermal Actuators
designed by [Andrew Benson] are a delightful and profoundly different approach to the Power Harvesting Challenge portion of The Hackaday Prize. While most projects were focused on electrical power, [Andrew]’s design is essentially a mechanical motor that harnesses the fact tha... | 4 | 1 | [
{
"comment_id": "4814667",
"author": "Thinkerer",
"timestamp": "2018-08-03T03:12:22",
"content": "Wax-motor greenhouse vent actuators are widely available – coupling these to a hydraulic/pneumatic cylinder to provide transmittable force seems a lot simpler. Elegant designs, though.",
"parent_id... | 1,760,374,271.509185 | ||
https://hackaday.com/2018/08/02/hackaday-belgrade-sophi-kravitzs-blimp-army/ | Hackaday Belgrade: Sophi Kravitz’s Blimp Army | Jenny List | [
"cons",
"Hackaday Columns"
] | [
"blimp",
"dirigible",
"Hackaday Belgrade 2018",
"helium balloon"
] | Building things that fly is hard. The constraints on small, battery powered, radio-operated gear already presents a challenge, but adding weight, balance, and aerodynamic constraints takes it to a whole new level. Sophi Kravitz rises to the occasion and discusses each
challenge of building a blimp
from start to finish ... | 12 | 6 | [
{
"comment_id": "4814002",
"author": "Digital Corpus",
"timestamp": "2018-08-02T19:37:19",
"content": "“Continue reading →”",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4814004",
"author": "DougM",
"timestamp": "2018-08-02T19:39:55",
"content": "... | 1,760,374,271.609892 | ||
https://hackaday.com/2018/08/02/smd-soldering-challenge-lands-at-def-con/ | SMD Soldering Challenge Lands At DEF CON | Mike Szczys | [
"cons",
"contests"
] | [
"DEF CON",
"DEFCON 26",
"Hardware Hacking Village",
"smd",
"Solder Skills Village",
"soldering challenge",
"surface mount"
] | Strap on the jeweler’s loupe and lay off the caffeine for a few days. You’ll need to be at your peak for
the SMD Soldering Challenge at this year’s DEF CON
(number 26 for those counting).
It’s exciting to see that a Soldering Skills Village has been added to the conference this year. It will be in the same room as the ... | 42 | 16 | [
{
"comment_id": "4813797",
"author": "AVR",
"timestamp": "2018-08-02T16:09:57",
"content": "needs more QFN",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4813803",
"author": "JB",
"timestamp": "2018-08-02T16:15:40",
"content": "0402 is a PITA. At 5... | 1,760,374,271.843763 | ||
https://hackaday.com/2018/08/02/lasercut-gears-a-learning-experience/ | Lasercut Gears – A Learning Experience | Lewin Day | [
"classic hacks"
] | [
"automaton",
"cephalopod",
"gears",
"laser cut gears",
"laser cutter",
"lasercut",
"lasercut gears",
"lasercutter"
] | Lasercutters are fantastic tools: they’re highly useful for making flat things, or even flat things that you later bend! This makes them particularly well suited for making gears out of flat stock. [sharvfish] needed to get his hands dirty with producing some gears for his automaton,
and decided to share what he learne... | 7 | 4 | [
{
"comment_id": "4813793",
"author": "Matt Cramer",
"timestamp": "2018-08-02T16:06:52",
"content": "I wonder if he’s tried cycloid gears for the smaller tooth counts? Making involute gears work with six teeth is doable, but takes a bit of planning.",
"parent_id": null,
"depth": 1,
"repli... | 1,760,374,271.761519 | ||
https://hackaday.com/2018/08/02/the-photo-lab-that-flew-to-the-moon/ | The Photo Lab That Flew To The Moon | Dan Maloney | [
"Featured",
"History",
"Original Art",
"Space"
] | [
"apollo",
"boeing",
"camera",
"film",
"jpl",
"kodak",
"nasa",
"satellite",
"video"
] | When planning a trip by car these days, it’s pretty much standard practice to spin up an image of your destination in Google Maps and get an idea of what you’re in for when you get there. What kind of parking do they have? Are the streets narrow or twisty? Will I be able to drive right up, or will I be walking a bit wh... | 12 | 7 | [
{
"comment_id": "4813743",
"author": "drwho8 (@drwho8)",
"timestamp": "2018-08-02T15:00:51",
"content": "Interesting. Besides being the first poster, I need not point to all of you back there that the process description points to a (probably recently) declassified CIA description. Kodak designed fo... | 1,760,374,272.022541 | ||
https://hackaday.com/2018/08/02/sinclair-zx-vega-to-lose-the-sinclair-name/ | Crowdfunding: !Sinclair !ZX Vega To Lose The Sinclair Name | Jenny List | [
"classic hacks",
"News"
] | [
"sinclair",
"ZX Spectrum",
"ZX Spectrum Vega"
] | It’s not a good time to be a backer of the crowdfunded Sinclair ZX Vega retro console. After raising a record sum on Indiegogo, a long series of broken promises and missed dates, and a final loss of patience from the crowdfunding site, it has emerged that the owner of the Sinclair and ZX brands
is to withdraw the right... | 5 | 3 | [
{
"comment_id": "4814957",
"author": "Black3ternity",
"timestamp": "2018-08-03T09:23:05",
"content": "Hmm …. so you lost me already after the first word in the title: Crowdfunding.Full stop.You know how the gaming-crowd runs ape when people say they want to preorder games?Never preorder games!Same w... | 1,760,374,271.96807 | ||
https://hackaday.com/2018/08/02/shell-script-synthesizer-knocks-your-sox-off/ | Shell Script Synthesizer Knocks Your SoX Off | Sven Gregori | [
"digital audio hacks"
] | [
"audio synthesis",
"shell script",
"sox",
"synthesizer"
] | Sound eXchange, or SoX, the “Swiss Army knife of audio manipulation” has been around for as long as the Linux kernel, and in case you’re not familiar with it, is a command line tool to play, record, edit, generate, and process audio files. [porkostomus] was especially interested about the generating part, and wrote
a l... | 5 | 2 | [
{
"comment_id": "4813511",
"author": "tomás zerolo",
"timestamp": "2018-08-02T11:24:44",
"content": "> Admittedly, the command line interface may not be the most convenient way to create music […]Oh, there are folks who tend to disagree with that. For an impressive example, see e.g. “A study in Keit... | 1,760,374,271.923044 | ||
https://hackaday.com/2018/08/01/raspberry-pi-on-the-go-powers-car-system/ | Raspberry Pi On The Go Powers Car System | Al Williams | [
"car hacks",
"Raspberry Pi"
] | [
"backup camera",
"Go",
"gps",
"maps",
"QML",
"Qt5",
"raspberry pi",
"rear-view",
"rearview camera"
] | Most new cars have GPS, rear cameras, and all the other wonders an on-board system can bring. But what if you have an old car? [Fabrice Aneche] has a 2011 vehicle, and wanted a rearview camera. He started with a touch screen, a Raspberry Pi 3, and a camera. But you know how these projects take on a life of their own. S... | 9 | 4 | [
{
"comment_id": "4813413",
"author": "ziew",
"timestamp": "2018-08-02T10:40:22",
"content": "Does anyone where do the guidelines on rear camera image come from? Are they overlaid by the camera itself or done in software? I couldn’t find any information in the blog posts.",
"parent_id": null,
... | 1,760,374,272.071527 | ||
https://hackaday.com/2018/08/01/hanky-deprived-drones-taste-whale-snot-for-science/ | Hanky-Deprived Drones Taste Whale Snot For Science | Sonya Vasquez | [
"drone hacks"
] | [
"drone fishing",
"field research",
"snotbot",
"whale"
] | A whole world of biomass floats in the boogers of a whale’s exhaust, and it’s a biologist’s dream to explore it. Whale snot carries everything from DNA samples to hormone signatures. But getting close enough to a surfacing whale for long enough to actually sample this snot turns out to be a nightmare when done by boat.... | 5 | 5 | [
{
"comment_id": "4812766",
"author": "Bruce Perens",
"timestamp": "2018-08-02T02:06:00",
"content": "Do they give Pulitzers for titles?",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4812884",
"author": "Mike Massen",
"timestamp": "2018-08-02T03:30:03"... | 1,760,374,272.111073 | ||
https://hackaday.com/2018/08/04/feast-your-eyeballs-on-this-mechanical-eyeball/ | Feast Your Eyeballs On This Mechanical Eyeball | Jenny List | [
"digital cameras hacks",
"Robots Hacks"
] | [
"camera",
"eyeball",
"pan-tilt",
"raspberry pi"
] | Most of us, if we have bought a single board computer with the capability to support a camera, will have succumbed to temptation and shelled out for that peripheral in the hope that we can coax our new toy into having sight. We’ll have played with the command line tool and taken a few random images of our bench, but t... | 1 | 1 | [
{
"comment_id": "4817022",
"author": "Tegwyn Twmfatt",
"timestamp": "2018-08-04T17:57:36",
"content": "Looks perfect for my Asian hornet sentry gun project (next year).",
"parent_id": null,
"depth": 1,
"replies": []
}
] | 1,760,374,272.1539 | ||
https://hackaday.com/2018/08/04/hacked-vacuum-chamber-wont-suck-a-hole-in-your-budget/ | Hacked Vacuum Chamber Won’t Suck A Hole In Your Budget | Dan Maloney | [
"Misc Hacks"
] | [
"chamber",
"compressor",
"degassing",
"fridge",
"vacuum",
"vacuum forming"
] | There’s nothing like a true hack, where something useful is concocted from bits of scrap and bargain store finds. Builds like these are much more than the sum of their parts, especially when they result in a useful tool, like
this DIY vacuum chamber
that’s good for all sorts of jobs.
Everything [Black Beard Projects] u... | 38 | 16 | [
{
"comment_id": "4816635",
"author": "NiHaoMike",
"timestamp": "2018-08-04T14:21:08",
"content": "A popular low cost option is to convert a cheap pressure cooker.https://www.youtube.com/watch?v=-pYZrIgnLS0",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4816648... | 1,760,374,272.229567 | ||
https://hackaday.com/2018/08/04/gameduino-mystorm-oscilloscope/ | Gameduino + Mystorm = Oscilloscope! | Jenny List | [
"FPGA"
] | [
"digital Oscilloscope",
"gameduino",
"mystorm",
"oscilloscope"
] | There has to be more than one of us who over the years since the launch of systems like the original Game Boy have eyed up these handheld platforms and thought “You could make a really neat little oscilloscope with that!” But the commercial systems are closed-source, locked down, and proprietary, so in many cases there... | 4 | 2 | [
{
"comment_id": "4816454",
"author": "Dave",
"timestamp": "2018-08-04T11:47:51",
"content": "Actually, Elektor magazine published a gameboy oscilloscope in the oktober/november 2000 issue.https://www.elektor.com/gameboy-digital-sampling-oscilloscope-990082-91",
"parent_id": null,
"depth": 1,... | 1,760,374,272.269919 | ||
https://hackaday.com/2018/08/04/finding-the-linear-in-a-laser/ | Finding The Linear In A Laser | Jenny List | [
"Laser Hacks"
] | [
"audio",
"boldport",
"laser",
"laser audio"
] | If your path has taken you through any work with hi-fi audio, you will be aware of the effects of distortion on sound quality. The tiniest non-linearity in a component can ruin the result, and people who work at the extreme end of the hi-fi spectrum will go to impossible lengths to chase the tiniest percentages of dist... | 12 | 7 | [
{
"comment_id": "4816607",
"author": "C M",
"timestamp": "2018-08-04T14:03:36",
"content": "Typically the current is linearly related to luminosity, however the brightness to our eyes is the log of it. Twice the number of photons does not “look” twice as bright. The non-linearity between current and... | 1,760,374,272.336767 | ||
https://hackaday.com/2018/08/03/measuring-energy-consumption/ | Measuring Energy Consumption | Al Williams | [
"Tool Hacks"
] | [
"energy meter",
"energy monitor",
"MCP39F511"
] | You would think that measuring a lot of sophisticated AC power parameters such as active and reactive power, RMS voltage and current, and line frequency would be a big job. As it turns out in so many cases, there’s a chip for that. The Microchip MCP39F511 can do all of that, but needs a little help from a few transform... | 10 | 3 | [
{
"comment_id": "4816747",
"author": "Georgia",
"timestamp": "2018-08-04T15:43:40",
"content": "I would love to have a tracking energy consumption!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4816787",
"author": "Ostracus",
"timestamp": "2018-08-04T... | 1,760,374,272.444895 | ||
https://hackaday.com/2018/08/03/computer-programming-unplugged-for-kids/ | Computer Programming Unplugged For Kids | Al Williams | [
"computer hacks"
] | [
"computer science",
"education",
"school"
] | There was a time when computers were far too expensive to let mere students use them. In those days, we wrote fake programs for fictitious machines and checked them by hand. That wasn’t fun, but it did teach you to think about the algorithm. You weren’t worried about how many tabs to indent code in the editor, or check... | 10 | 7 | [
{
"comment_id": "4815959",
"author": "TheRainHarvester on YouTube",
"timestamp": "2018-08-04T02:31:18",
"content": "Who remembers those Apple][e workbooks, with the hand-drawn pictures and the printed-out BASIC programs, that described each line of code ?",
"parent_id": null,
"depth": 1,
... | 1,760,374,272.604454 | ||
https://hackaday.com/2018/08/03/now-enrolling-mars-rovers-going-to-school/ | Six Wheels (En)rolling: Mars Rovers Going To School | Roger Cheng | [
"Robots Hacks"
] | [
"Curiosity",
"jpl",
"mars",
"mars rover",
"Mars Science Laboratory",
"nasa",
"open source",
"open source robotics",
"robot",
"rocker-bogie",
"rover",
"space",
"space program",
"space tech"
] | Few things build excitement like going to space. It captures the imagination of young and old alike. Teachers love to leverage the latest space news to raise interest in their students, and space agencies are happy to provide resources to help. The latest in a long line of educator resources released by NASA is an
Open... | 7 | 4 | [
{
"comment_id": "4815747",
"author": "BillSF9c",
"timestamp": "2018-08-04T00:08:41",
"content": "Street Legal, a requirement for most of us who do not own a piece of the Ponderosa…",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4815822",
"author": "Mr Name... | 1,760,374,272.752341 | ||
https://hackaday.com/2018/08/01/quadcopter-hardware-gets-classic-lake-bed-test/ | Quadcopter Hardware Gets Classic Lake Bed Test | Tom Nardi | [
"drone hacks",
"Transportation Hacks"
] | [
"desert",
"propeller",
"quadcopter",
"testing",
"thrust"
] | You’d be hard pressed to find an aircraft that wasn’t designed and tested without extensive use of simulation. Whether it’s the classic approach of using a scale model in a wind tunnel or more modern techniques such as computational fluid dynamics, a lot of testing happens before any actual hardware gets bolted togethe... | 6 | 2 | [
{
"comment_id": "4812672",
"author": "Nate B",
"timestamp": "2018-08-02T00:22:02",
"content": "Dang, I should’ve bought that little wind tunnel when it came up in university surplus…They can’t be that hard to make, can they? Hmmmm!",
"parent_id": null,
"depth": 1,
"replies": [
{
... | 1,760,374,272.65291 | ||
https://hackaday.com/2018/08/01/old-led-light-bulbs-give-up-filaments-for-spider-web-clock/ | Old LED Light Bulbs Give Up Filaments For Spider Web Clock | Dan Maloney | [
"clock hacks",
"LED Hacks",
"Slider"
] | [
"clock",
"COB",
"digital",
"DS8880",
"filament",
"led",
"MSF",
"seven segment"
] | We love it when something common gets put to a new and unusual use, especially when it’s one of those, “Why didn’t I think of that?” situations.
This digital clock with a suspended display
is just such a thing.
The common items in this case were “filaments” from LED light bulbs, those meant to mimic the look of clear-g... | 41 | 18 | [
{
"comment_id": "4812478",
"author": "janostman",
"timestamp": "2018-08-01T20:22:39",
"content": "Love this.I just dont know what else to use those leds for than segments?",
"parent_id": null,
"depth": 1,
"replies": [
{
"comment_id": "4812494",
"author": "Beef",
... | 1,760,374,272.830998 | ||
https://hackaday.com/2018/08/01/ptpm-energy-scavenger-aims-for-maintenance-free-sensor-nodes/ | PTPM Energy Scavenger Aims For Maintenance-Free Sensor Nodes | Donald Papp | [
"green hacks",
"Solar Hacks",
"The Hackaday Prize"
] | [
"2018 Hackaday Prize",
"arm",
"battery",
"energy harvesting",
"generator",
"LTC3331",
"magnetic induction",
"piezo",
"piezoelectric",
"power",
"recharge",
"rechargeable",
"selectable voltage",
"sensor",
"sensor node",
"solar",
"supercap",
"Thermal",
"thermoelectric",
"wireless"... | [Mile]’s
PTPM Energy Scavenger
takes the scavenging idea seriously and is designed to gather not only solar power but also energy from temperature differentials, vibrations, and magnetic induction. The idea is to make wireless sensor nodes that can be self-powered and require minimal maintenance. There’s more to the id... | 13 | 6 | [
{
"comment_id": "4812438",
"author": "Tore Lund",
"timestamp": "2018-08-01T19:49:09",
"content": "Another not insignificant source of free indoors power, not mentioned here or in the project page, is induction from power lines. Just the hum picked up with a loop antenna anywhere in a room with wirin... | 1,760,374,272.7013 | ||
https://hackaday.com/2018/08/01/this-weekend-the-vintage-computer-festival-west/ | This Weekend: The Vintage Computer Festival West | Brian Benchoff | [
"cons"
] | [
"computer history museum",
"cons",
"VCF",
"VCF West"
] | This weekend it’s all going down at the Vintage Computer Museum in Mountain View, California.
The Vintage Computer Festival West
is happening this weekend
What’s going on this year at VCF West? Far too much.
The exhibits
include everything from floptical disks, a fully restored and operation PDP-11/45, home computers f... | 3 | 3 | [
{
"comment_id": "4812453",
"author": "Gleason",
"timestamp": "2018-08-01T19:55:34",
"content": "The PDP-11/45 was the one where things really started getting good. I and D space, Massbus, memory management unit, semiconductor memory, floating point coprocessor – you could start to put together a ser... | 1,760,374,273.028722 | ||
https://hackaday.com/2018/08/01/wolfram-alpha-electronic-tips/ | Wolfram Alpha Electronic Tips | Al Williams | [
"Tool Hacks"
] | [
"math",
"mathematics",
"wolfram alpha"
] | Electronics takes a lot of math. Once you’ve mastered all the algebra and calculus, though, it is sometimes a drag to go through the motions. It also can be error-prone. But these days, you have
Wolfram Alpha
which will do all the work for you and very easily. I use it all the time when I’m too lazy to solve an equatio... | 13 | 9 | [
{
"comment_id": "4812049",
"author": "Clara",
"timestamp": "2018-08-01T17:17:14",
"content": "I also find GNU Units is an invaluable tool for engineering calculations: a scientific calculator that keeps track of, and converts, units.",
"parent_id": null,
"depth": 1,
"replies": []
},
... | 1,760,374,272.986993 | ||
https://hackaday.com/2018/08/01/friday-hack-chat-training-robots-by-touch/ | Friday Hack Chat: Training Robots By Touch | Brian Benchoff | [
"Hackaday Columns"
] | [
"Hack Chat",
"haptic",
"haptics",
"robotics"
] | When it comes to training robots, you could grab a joystick or carefully program movements in code. The better way, though, is to move the robot yourself, and have the robot play back all those movements ad infinitum. This is training robots by touch, and it’s the subject of
this week’s Hack Chat over on hackaday.io
.
... | 3 | 3 | [
{
"comment_id": "4812168",
"author": "alfcoder",
"timestamp": "2018-08-01T18:01:28",
"content": "sex robots :)",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4812599",
"author": "Michel",
"timestamp": "2018-08-01T22:24:32",
"content": "I love the p... | 1,760,374,273.115439 | ||
https://hackaday.com/2018/08/01/specialized-knife-sharpener-from-old-airplane/ | Specialized Knife Sharpener From Old Airplane | Bryan Cockfield | [
"Tool Hacks"
] | [
"airplane",
"angle",
"bevel",
"knife",
"sharpening",
"tool"
] | “Surely sharpening a knife can’t be that hard” one might think, as they destroy the edge on their pocket knife by flailing it wildly against a whetstone of indeterminate grain. In reality, knife sharpening is as nuanced a practice as virtually any other field, and getting a quality finish is much harder than it seems. ... | 5 | 3 | [
{
"comment_id": "4811834",
"author": "Graham Tanner",
"timestamp": "2018-08-01T16:04:04",
"content": "Aaah, Brits in their workshops … I love the healthy disregard for ‘elf-n-safety’, Safety gloves – nope; eye protection – nope; hearing protection – nope; breathing protection – nope; body protectio... | 1,760,374,273.072093 | ||
https://hackaday.com/2018/08/01/defcad-triggers-http-451/ | DefCAD Triggers HTTP 451 | Tom Nardi | [
"Current Events",
"Weapons Hacks"
] | [
"Cody Wilson",
"DEFCAD",
"HTTP 451",
"itar"
] | Depending on where you live, pointing your browser to Defcad.com yesterday may have shown you something you’d never seen before. It certainly did for me. That’s because I live in one of the two states (as of this writing) in the United States which have scrambled to block access to the online repository of firearm CAD ... | 84 | 25 | [
{
"comment_id": "4811531",
"author": "CRImier",
"timestamp": "2018-08-01T14:08:31",
"content": "Hehe. What’s next, open-source software-defined radio PCB layouts? Since, you know, all the base station spoofing possibilities – gotta limit that to the people in the black bus behind the civil rights pr... | 1,760,374,273.241946 | ||
https://hackaday.com/2018/08/01/find-your-level-extracting-nes-game-data-using-python/ | Find Your Level – Extracting NES Game Data Using Python | Sven Gregori | [
"Nintendo Hacks",
"Slider"
] | [
"6502",
"nes",
"nintendo",
"python",
"super mario",
"super mario bros"
] | Just this summer, the Nintendo Entertainment System had its 35th release anniversary, and even after years of discontinuation, it is still going strong in the hacker community. Exhibit A: [Matthew Earl]. For one of his upcoming projects, [Matthew] needed to get his hands on the background images of the NES classic Supe... | 8 | 5 | [
{
"comment_id": "4812644",
"author": "mj",
"timestamp": "2018-08-01T23:45:04",
"content": "This is really cool, and a very neat approach to do it! Thanks for that excellent write-up, bookmarked!",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4814064",
"aut... | 1,760,374,273.285243 | ||
https://hackaday.com/2018/08/01/kindle-tells-the-time-by-quoting-literature/ | Kindle Tells The Time By Quoting Literature | Sven Gregori | [
"clock hacks",
"Kindle hacks"
] | [
"clock",
"e-reader",
"jailbreak",
"kindle",
"literary clock"
] | People love books, and if you’re anything like [tjaap]’s girlfriend, you may easily devour your eighty books and more a year. Maybe to keep better track of time during her reading sessions, her wish was to get a clock for the living room, so [tjaap] stepped up. Being a maker at heart, he decided to skip the ready-made ... | 10 | 9 | [
{
"comment_id": "4810559",
"author": "Jotrin Electronics",
"timestamp": "2018-08-01T08:19:01",
"content": "that is nice",
"parent_id": null,
"depth": 1,
"replies": []
},
{
"comment_id": "4810893",
"author": "Angela Gilhotra",
"timestamp": "2018-08-01T10:38:39",
"conte... | 1,760,374,273.33195 | ||
https://hackaday.com/2018/07/31/homebuilt-cnc-software-brewed-to-taste/ | Homebuilt CNC Software, Brewed To Taste | Lewin Day | [
"cnc hacks"
] | [
"cnc",
"cnc software",
"DIY CNC",
"milling"
] | Mainstream productivity software from the big companies is usually pretty tight, these days. Large open source projects are also to a similar standard when it comes to look and feel, as well as functionality. It’s when you dive into more niche applications that you start finding ugly, buggy software, and CNC machining ... | 36 | 11 | [
{
"comment_id": "4810155",
"author": "macona",
"timestamp": "2018-08-01T05:38:28",
"content": "Kflop is great, I installed on on my mill and am using it though the Mach3 plug in. Great support too. Still have a couple little things to work out like my modbus MPG does not work with it. The free inter... | 1,760,374,273.459382 | ||
https://hackaday.com/2018/07/31/object-detection-with-tensorflow/ | Object Detection, With TensorFlow | Bryan Cockfield | [
"Video Hacks"
] | [
"computer vision",
"detection",
"Object",
"open cv",
"protobuf",
"python",
"raspberry pi",
"tensorflow"
] | Getting computers to recognize objects has been a historically difficult problem in computer science, but with the rise of machine learning it is becoming easier to solve.
One of the tools that can be put to work in object recognition
is an open source library called TensorFlow, which [Evan] aka [Edje Electronics] has ... | 11 | 7 | [
{
"comment_id": "4810018",
"author": "UM3SH",
"timestamp": "2018-08-01T04:23:31",
"content": "Can anyone please point me to tutorial for cross compiling opencv and installing on pi downloading and building opencv on pi takes forever. I have RPi zero which does not have network connection.",
"par... | 1,760,374,273.378814 |
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