hackaday.com Archives - 27 February 2017, Monday

  • Taking A Robot For A Drive

    Taking A Robot For A Drive | Hackaday

    hackaday.com 27 Feb '17, 9am

    Instructables user [Roboro] had a Mad Catz Xbox steering wheel controller he hasn’t had much use for of late, so he decided to hack and use it as a controller for a robot instead . Conceivably, you could use any RC car, but [Roboro] is reusing one he used for a robot sumo competition ...

  • Enter the Space Tunnel | Hackaday

    hackaday.com 27 Feb '17, 6am

    What’s better than 1 string of LED lights? 96. That’s how many. Each string of the 96 has 60 ws2812b LEDs, for a total of 5760 individually addressable RGB LEDs. That’s not the cool part of [jaymeekae]’s Space Tunnel installation, the cool part is that they’re interactive . Starting o...

  • DIY Syringe Pump Saves Big Bucks for Hacker's Lab - Hackaday

    DIY Syringe Pump Saves Big Bucks for Hacker’s Lab | Hackaday

    hackaday.com 27 Feb '17, 3am

    If you had a choice between going to your boss and asking for funds for a new piece of gear, would you rather ask for $3000 to buy off-the-shelf, or $200 for the parts to build the same thing yourself? Any self-respecting hacker knows the answer, and when presented with an opportunity...

  • Hackaday Links: February 26, 2017

    Hackaday Links: February 26, 2017 | Hackaday

    hackaday.com 27 Feb '17, 12am

    The MeArm Pi is a fantastic little robot kit that was the first place winner of the Enlightened Pi contest here on Hackaday. It’s crushing the Shitty Robots subreddit , and compared to the old MeArm kit, it’s much, much simpler to assemble. Ask me how I know. Now the MeArm Pi is a Kic...

  • Your Internet of Things Speaks Volumes About You

    Your Internet of Things Speaks Volumes About You | Hackaday

    hackaday.com 26 Feb '17, 9pm

    If only Marv and Harry were burglars today; they might have found it much easier to case houses and — perhaps — would know which houses were occupied by technically inclined kids by capitalizing on the potential vulnerability that [Luc Volders] has noticed on ThingSpeak. As an IoT ser...

  • Ask Hackaday: What can you do with Origami?

    Ask Hackaday: What can you do with Origami? | Hackaday

    hackaday.com 26 Feb '17, 6pm

    At some point, most of us have learned a little of the ancient art of origami. It’s a fascinating art form, and being able to create a recognizable model by simply folding paper in the right order can be hugely satisfying. Most of us move on to other pursuits once we master the classi...

  • 3D-Printed Vise Is a Mechanical Marvel

    3D-Printed Vise Is a Mechanical Marvel | Hackaday

    hackaday.com 26 Feb '17, 3pm

    We often wonder how many people have 3D printers and wind up just printing trinkets off Thingiverse. To get the most out of a printer, you really need to be able to use a CAD package and make your own design. However, just like a schematic editor doesn’t make your electronic designs w...

  • Interactive Game Board Helps Toddler Learn Colors and Shapes

    Interactive Game Board Helps Toddler Learn Colors and Shapes | Hackaday

    hackaday.com 26 Feb '17, 12pm

    [Jake] and his wife [Beth] were advised to familiarize [Becca] with the shapes, but all she wanted to do was eat the printed sheet. In order to make the task more entertaining, [Jake] built an interactive board where brightly colored Lea shapes trigger the room lights to change to the...

  • How’d They Do It: Levitating Orb Clock https://t.co/RB6wNzDsor

    How’d They Do It: Levitating Orb Clock | Hackaday

    hackaday.com 26 Feb '17, 9am

    It’s time for everyone’s favorite game: speculative engineering! An anonymous reader wrote to our tips line asking how the levitation system of the STORY clock is accomplished. We took a look and can tell you right now… that’s a really good question! STORY: The Levitating Timepiece ha...

  • Loop Antenna is Portable | Hackaday

    hackaday.com 26 Feb '17, 6am

    We don’t know if [OH8STN] has a military background, but we suspect he might since his recent post is about a “DIY Man Portable Magnetic Loop Antenna .” “Man-portable” is usually a military designation, and — we presume — he wouldn’t object to a woman transporting it either. [OH8STN] ...

  • Decorate Your 3D Prints with Detailed Hydrographic Printing

    Decorate Your 3D Prints with Detailed Hydrographic Printing | Hackaday

    hackaday.com 26 Feb '17, 3am

    It’s like the old quip from [Henry Ford]: You can have your 3D prints in any color you want, as long as it’s one. Some strides have been made to bringing more color to your extruded goodies, but for anything beyond a few colors, you’re going to need to look at post-print processing of...

  • Octosonar is 8X Better than Monosonar

    Octosonar is 8X Better than Monosonar | Hackaday

    hackaday.com 26 Feb '17, 12am

    The HC-SR04 sonar modules are available for a mere pittance and, with some coaxing, can do a pretty decent job of helping your robot measure the distance to the nearest wall. But when sellers on eBay are shipping these things in ten-packs, why would you stop at mounting just one or tw...

  • This 3D Printed Microscope Bends for 50nm Precision | Hackaday

    hackaday.com 25 Feb '17, 9pm

    >> It makes no sense to blast everything with gamma radiation until all is dead to make sure if less would do. No but again these systems may not be any more expensive than paying an annual salary to a trained technician. Sterlization techniques are well understood, there’s no trial a...

  • Do you trust your hard drive indication light? | Hackaday

    hackaday.com 25 Feb '17, 9pm

    Researchers in the past have exfiltrated information through air gaps by blinking all sorts of lights from LEDs in keyboards to the main display itself. However, all of these methods all have one problem in common: they are extremely noticeable. If you worked in a high-security lab an...

  • Ask Hackaday: Bitten by the Crocodile Clip

    Ask Hackaday: Bitten by the Crocodile Clip | Hackaday

    hackaday.com 25 Feb '17, 6pm

    I have a love/hate relationship with the crocodile clip. Nothing is so quick to lash together a few half-baked prototype boards on your desk, but nothing ends up in such a tangle so quickly, either. I love the range of pretty colors that crocodiles come in, as well as the easy ability...

  • Tindie Chat: All About Certifications | Hackaday

    hackaday.com 25 Feb '17, 4pm

    The chat functionality on Hackaday.io is quickly turning into the nexus of all things awesome. This Tuesday, February 28th, everyone’s favorite robotic dog is talking certifications. Everything from FCC to UL to OSH to CE and the other CE is on the table. If you want to build hardware...

  • Growing Plants on Mars… on Earth https://t.co/1cCWyjalfJ

    Growing Plants on Mars… on Earth | Hackaday

    hackaday.com 25 Feb '17, 3pm

    One of the biggest challenges of traveling to Mars is that it’s far away. That might seem obvious, but that comes with its own set of problems when compared to traveling to something relatively close like the Moon. The core issue is weight, and this becomes a big deal when you have to...

  • Simple and Effective Car Lock Jammer Detector

    Simple and Effective Car Lock Jammer Detector | Hackaday

    hackaday.com 25 Feb '17, 12pm

    [Andrew Nohawk], has noticed a spike of car break-ins and thefts — even in broad daylight — in his native South Africa. The thieves have been using remote jammers. Commercial detectors are available but run into the hundreds of dollars. He decided to experiment with his own rig, whipp...

  • The Fab Lab Next Door: DIY Semiconductors

    The Fab Lab Next Door: DIY Semiconductors | Hackaday

    hackaday.com 25 Feb '17, 9am

    You think you’ve got it going on because you can wire up some eBay modules and make some LEDs blink, or because you designed your own PCB, or maybe even because you’re an RF wizard. Then you see that someone is fabricating semiconductors at home , and you realize there’s always anothe...

  • Ham Goes Nuts for Tiny Transmitter | Hackaday

    hackaday.com 25 Feb '17, 6am

    Some hams really love the challenge of QRP, or the deliberate use of low-power transmitters to provide a challenge to making long-distance contacts. We’ve covered the world of QRP before and noted that while QRP rigs don’t throw a lot of power, it doesn’t mean that they need to be sim...

  • Ham Goes Nuts for Tiny Transmitter | Hackaday

    hackaday.com 25 Feb '17, 6am

    Some hams really love the challenge of QRP, or the deliberate use of low-power transmitters to provide a challenge to making long-distance contacts. We’ve covered the world of QRP before and noted that while QRP rigs don’t throw a lot of power, it doesn’t mean that they need to be sim...

  • Old Thermometer Gets New Eyes

    Old Thermometer Gets New Eyes | Hackaday

    hackaday.com 25 Feb '17, 3am

    As much as we’d like to have the right tools for the right job all of the time, sometimes our parts drawers have other things in mind. After all, what’s better than buying a new tool than building one yourself from things you had lying around? That’s at least what [Saulius] must have ...

  • A Mess Of Wires Turned Into An Analog Synth | Hackaday

    hackaday.com 25 Feb '17, 12am

    Over on YouTube, [GumpherDM3] built one of the greatest musical projects we’ve seen in a long time. It’s an analog synthesizer that is one of a kind. It’s going to stay one of a kind, too: no one would ever want to copy this mess of wires and perfboard that was successfully turned int...

  • iPhone Brain Surgery

    iPhone Brain Surgery | Hackaday

    hackaday.com 24 Feb '17, 9pm

    The reason for the repair is unclear, although the titles refer to a “CPU to U0301 AP31 AR31 broken repair,” which we take to refer to a boot error that can be repaired by exposing a couple of pads inside the CPU and wiring them to another chip. We’d love to hear comments from anyone ...

  • 60 Watt USB Soldering Iron Does it with Type-C

    60 Watt USB Soldering Iron Does it with Type-C | Hackaday

    hackaday.com 24 Feb '17, 7pm

    Some time back we ran a post on those cheap USB soldering irons which appeared to be surprisingly capable considering they were really under powered, literally. But USB Type-C is slated to change that. Although it has been around for a while, we are only now beginning to see USB-C cap...

  • About Schmitt (Triggers)

    About Schmitt (Triggers) | Hackaday

    hackaday.com 24 Feb '17, 6pm

    There is an old saying: “In theory, theory and practice are the same. In practice, they are not.” We spend our time drawing on paper or a computer screen, perfect wires, ideal resistors, and flawless waveforms. Alas, the real world is not so kind. Components have all kinds of nasty pa...

  • Join Hackaday And Tindie At The Southern California Linux Expo | Hackaday

    hackaday.com 24 Feb '17, 5pm

    Do you like Open Source? Join Hackaday and Tindie at the largest community-run Open Source conference in North America. We’ll be at the Southern California Linux Expo next week , and we want to see you there. What’s happening at SCALE this year? Amateur radio license exams, a PGP sign...

  • Cloudbleed — Your Credentials Cached in Search Engines https://t.co/CXysjRdlJk

    Cloudbleed — Your Credentials Cached in Search Engines | Hackaday

    hackaday.com 24 Feb '17, 4pm

    In case you are still wondering about the SHA-1 being broken and if someone is going to be spending hundreds of thousands of dollars to create a fake Certificate Authority and sniff your OkCupid credentials, don’t worry. Why spend so much money when your credentials are being cached b...

  • What Does a Hacker Do With A Photocopier?

    What Does a Hacker Do With A Photocopier? | Hackaday

    hackaday.com 24 Feb '17, 3pm

    The year is 2016. Driving home from a day’s work in the engineering office, I am greeted with a sight familiar to any suburban dwelling Australian — hard rubbish. It’s a time when local councils arrange a pickup service for anything large you don’t want anymore — think sofas, old comp...

  • Toast-Bot Butters For You (Sometimes) | Hackaday

    hackaday.com 24 Feb '17, 12pm

    Sometimes — despite impracticality, safety, failure, and general good sense — one has an urge to see a project through for the sake of it. When you’re sick of buttering your toast every morning, you might take a leaf out of Rick Sandc– ahem, [William Osman]’s book and build a toast-bo...