AI Phone App Learns Baseball Signals
https://hackaday.com/2019/11/24/ai-phone-app-learns-baseball-signals/
Watching a sport can be a bit odd if you aren’t familiar with it. Most Americans, for example, would think a cricket match looked funny because they don’t know the rules. If you were not familiar with baseball, you might wonder why one of the coaches was waving his hands …read more (https://hackaday.com/2019/11/24/ai-phone-app-learns-baseball-signals/)
https://hackaday.com/2019/11/24/ai-phone-app-learns-baseball-signals/
Watching a sport can be a bit odd if you aren’t familiar with it. Most Americans, for example, would think a cricket match looked funny because they don’t know the rules. If you were not familiar with baseball, you might wonder why one of the coaches was waving his hands …read more (https://hackaday.com/2019/11/24/ai-phone-app-learns-baseball-signals/)
Incredibly Tiny RF Antennas For Practical Nanotech Radios
https://hackaday.com/2019/11/25/incredibly-tiny-rf-antennas-for-practical-nanotech-radios/
Researchers may have created the smallest-ever radio-frequency antennas, a development that should be of interest to any nanotechnology enthusiasts. A group of scientists from Korea published a paper in ACS Nano that details the fabrication of a two-dimensional radio-frequency antenna for wearable applications. Most antennas made from metallic materials like …read more (https://hackaday.com/2019/11/25/incredibly-tiny-rf-antennas-for-practical-nanotech-radios/)
https://hackaday.com/2019/11/25/incredibly-tiny-rf-antennas-for-practical-nanotech-radios/
Researchers may have created the smallest-ever radio-frequency antennas, a development that should be of interest to any nanotechnology enthusiasts. A group of scientists from Korea published a paper in ACS Nano that details the fabrication of a two-dimensional radio-frequency antenna for wearable applications. Most antennas made from metallic materials like …read more (https://hackaday.com/2019/11/25/incredibly-tiny-rf-antennas-for-practical-nanotech-radios/)
Wipe Your Nozzle To Avoid Stringing
https://hackaday.com/2019/11/25/wipe-your-nozzle-to-avoid-stringing/
[Design Prototype Test] likes his Ender 3 printer. There was only one problem. When printing PETG — which is notorious for stringing — the hot end would pick up material and eventually ruin the print. The answer was to mount a cheap Harbor Freight brush somewhere and make the head …read more (https://hackaday.com/2019/11/25/wipe-your-nozzle-to-avoid-stringing/)
https://hackaday.com/2019/11/25/wipe-your-nozzle-to-avoid-stringing/
[Design Prototype Test] likes his Ender 3 printer. There was only one problem. When printing PETG — which is notorious for stringing — the hot end would pick up material and eventually ruin the print. The answer was to mount a cheap Harbor Freight brush somewhere and make the head …read more (https://hackaday.com/2019/11/25/wipe-your-nozzle-to-avoid-stringing/)
Tales from the Sysadmin: Dumped into the Grub Command Line
https://hackaday.com/2019/11/25/tales-from-the-sysadmin-dumped-into-the-grub-command-line/
Today I have a tale of mystery, of horror, and of hope. The allure of a newer kernel and packages was too much to resist, so I found myself upgrading to Fedora 30. All the packages had downloaded, all that was left was to let DNF reboot the machine and …read more (https://hackaday.com/2019/11/25/tales-from-the-sysadmin-dumped-into-the-grub-command-line/)
https://hackaday.com/2019/11/25/tales-from-the-sysadmin-dumped-into-the-grub-command-line/
Today I have a tale of mystery, of horror, and of hope. The allure of a newer kernel and packages was too much to resist, so I found myself upgrading to Fedora 30. All the packages had downloaded, all that was left was to let DNF reboot the machine and …read more (https://hackaday.com/2019/11/25/tales-from-the-sysadmin-dumped-into-the-grub-command-line/)
Patrol the Sprawl with this Battle Ready Cyberdeck
https://hackaday.com/2019/11/25/patrol-the-sprawl-with-this-battle-ready-cyberdeck/
The recent crop of cyberdeck builds are inspired, at least tangentially, by William Gibson’s novel Neuromancer and its subsequent sequels. In the novels, the decks are used as mobile terminals to access the virtual reality of cyberspace. In our world, they’re usually just quasi-retro boxes with Raspberry Pis in them. …read more (https://hackaday.com/2019/11/25/patrol-the-sprawl-with-this-battle-ready-cyberdeck/)
https://hackaday.com/2019/11/25/patrol-the-sprawl-with-this-battle-ready-cyberdeck/
The recent crop of cyberdeck builds are inspired, at least tangentially, by William Gibson’s novel Neuromancer and its subsequent sequels. In the novels, the decks are used as mobile terminals to access the virtual reality of cyberspace. In our world, they’re usually just quasi-retro boxes with Raspberry Pis in them. …read more (https://hackaday.com/2019/11/25/patrol-the-sprawl-with-this-battle-ready-cyberdeck/)
New Silicon Carbide Semiconductors Bring EV Efficiency Gains
https://hackaday.com/2019/11/25/new-silicon-carbide-semiconductors-bring-ev-efficiency-gains/
After spending much of the 20th century languishing in development hell, electric cars have finally hit the roads in a big way. Automakers are working feverishly to improve range and recharge times to make vehicles more palatable to consumers.
With a strong base of sales and increased uncertainty about the …read more (https://hackaday.com/2019/11/25/new-silicon-carbide-semiconductors-bring-ev-efficiency-gains/)
https://hackaday.com/2019/11/25/new-silicon-carbide-semiconductors-bring-ev-efficiency-gains/
After spending much of the 20th century languishing in development hell, electric cars have finally hit the roads in a big way. Automakers are working feverishly to improve range and recharge times to make vehicles more palatable to consumers.
With a strong base of sales and increased uncertainty about the …read more (https://hackaday.com/2019/11/25/new-silicon-carbide-semiconductors-bring-ev-efficiency-gains/)
Mike Harrison Knows Everything About LEDs
https://hackaday.com/2019/11/25/mike-harrison-knows-everything-about-leds/
Driving an LED and making it flash is probably the first project that most people will have attempted when learning about microprocessor control of hardware. The Arduino and similar boards have an LED fitted, and turning it on and off is a simple introduction to code. So it’s fair to …read more (https://hackaday.com/2019/11/25/mike-harrison-knows-everything-about-leds/)
https://hackaday.com/2019/11/25/mike-harrison-knows-everything-about-leds/
Driving an LED and making it flash is probably the first project that most people will have attempted when learning about microprocessor control of hardware. The Arduino and similar boards have an LED fitted, and turning it on and off is a simple introduction to code. So it’s fair to …read more (https://hackaday.com/2019/11/25/mike-harrison-knows-everything-about-leds/)
Robotic Skin Sees When (and How) You’re Touching It
https://hackaday.com/2019/11/25/robotic-skin-sees-when-and-how-youre-touching-it/
Cameras are getting less and less conspicuous. Now they’re hiding under the skin of robots.
A team of researchers from ETH Zurich in Switzerland have recently created a multi-camera optical tactile sensor that is able to monitor the space around it based on contact force distribution. The sensor uses a …read more (https://hackaday.com/2019/11/25/robotic-skin-sees-when-and-how-youre-touching-it/)
https://hackaday.com/2019/11/25/robotic-skin-sees-when-and-how-youre-touching-it/
Cameras are getting less and less conspicuous. Now they’re hiding under the skin of robots.
A team of researchers from ETH Zurich in Switzerland have recently created a multi-camera optical tactile sensor that is able to monitor the space around it based on contact force distribution. The sensor uses a …read more (https://hackaday.com/2019/11/25/robotic-skin-sees-when-and-how-youre-touching-it/)
Microphone Isolation Shield Is A Great IKEA Hack; Definitely Not a Xenomorph Egg
https://hackaday.com/2019/11/25/microphone-isolation-shield-is-a-great-ikea-hack-definitely-not-a-xenomorph-egg/
As any content creator knows, good audio is the key to maintaining an audience. Having a high quality microphone is a start, but it’s also necessary to reduce echoes and other unwanted noise. An isolation shield is key here, and [phico] has the low down on making your own.
The …read more (https://hackaday.com/2019/11/25/microphone-isolation-shield-is-a-great-ikea-hack-definitely-not-a-xenomorph-egg/)
https://hackaday.com/2019/11/25/microphone-isolation-shield-is-a-great-ikea-hack-definitely-not-a-xenomorph-egg/
As any content creator knows, good audio is the key to maintaining an audience. Having a high quality microphone is a start, but it’s also necessary to reduce echoes and other unwanted noise. An isolation shield is key here, and [phico] has the low down on making your own.
The …read more (https://hackaday.com/2019/11/25/microphone-isolation-shield-is-a-great-ikea-hack-definitely-not-a-xenomorph-egg/)
Barcaderator is Coin-Op Arcade up Top and Kegerator Down Below
https://hackaday.com/2019/11/25/barcaderator-is-coin-op-arcade-up-top-and-kegerator-down-below/
It’s a common sight in our community for a life-expired arcade cabinet to be repurposed as a MAME cabinet with an up-to-date screen and other internals. Many of us have had some fun pursuing high scores in a hackerspace somewhere, and even if they don’t have the screen burn and …read more (https://hackaday.com/2019/11/25/barcaderator-is-coin-op-arcade-up-top-and-kegerator-down-below/)
https://hackaday.com/2019/11/25/barcaderator-is-coin-op-arcade-up-top-and-kegerator-down-below/
It’s a common sight in our community for a life-expired arcade cabinet to be repurposed as a MAME cabinet with an up-to-date screen and other internals. Many of us have had some fun pursuing high scores in a hackerspace somewhere, and even if they don’t have the screen burn and …read more (https://hackaday.com/2019/11/25/barcaderator-is-coin-op-arcade-up-top-and-kegerator-down-below/)
ATX2AT Makes Retrocomputing Safer, Heads to Kickstarter
https://hackaday.com/2019/11/25/atx2at-makes-retrocomputing-safer-heads-to-kickstarter/
It’s easy to take power supplies for granted in modern computing, but powering vintage hardware is not always so simple or worry-free. The power supplies for old electronics are themselves vintage, and the hardware being powered can be quite precious. A power problem can easily cause fried components and burned …read more (https://hackaday.com/2019/11/25/atx2at-makes-retrocomputing-safer-heads-to-kickstarter/)
https://hackaday.com/2019/11/25/atx2at-makes-retrocomputing-safer-heads-to-kickstarter/
It’s easy to take power supplies for granted in modern computing, but powering vintage hardware is not always so simple or worry-free. The power supplies for old electronics are themselves vintage, and the hardware being powered can be quite precious. A power problem can easily cause fried components and burned …read more (https://hackaday.com/2019/11/25/atx2at-makes-retrocomputing-safer-heads-to-kickstarter/)
An Epic Quest to Build the Perfect Retro Handheld
https://hackaday.com/2019/11/26/an-epic-quest-to-build-the-perfect-retro-handheld/
It’s a good time to be a fan of classic video games. Most of us carry around a smartphone that’s more than capable of emulating pretty much everything from the 32-bit era on down, and if you want something a little more official, the big players like Sony and Nintendo …read more (https://hackaday.com/2019/11/26/an-epic-quest-to-build-the-perfect-retro-handheld/)
https://hackaday.com/2019/11/26/an-epic-quest-to-build-the-perfect-retro-handheld/
It’s a good time to be a fan of classic video games. Most of us carry around a smartphone that’s more than capable of emulating pretty much everything from the 32-bit era on down, and if you want something a little more official, the big players like Sony and Nintendo …read more (https://hackaday.com/2019/11/26/an-epic-quest-to-build-the-perfect-retro-handheld/)
PixMob LED Wristband Teardown (Plus IR Emitters and How To Spot Them)
https://hackaday.com/2019/11/26/pixmob-led-wristband-teardown-plus-ir-emitters-and-how-to-spot-them/
PixMob units are wearable LED devices intended for crowds of attendees at events like concerts. These devices allow synchronized LED effects throughout the crowd. [yeokm1] did a teardown of one obtained from a preview for the 2019 Singapore National Day Parade (NDP), and in the process learned about the devices …read more (https://hackaday.com/2019/11/26/pixmob-led-wristband-teardown-plus-ir-emitters-and-how-to-spot-them/)
https://hackaday.com/2019/11/26/pixmob-led-wristband-teardown-plus-ir-emitters-and-how-to-spot-them/
PixMob units are wearable LED devices intended for crowds of attendees at events like concerts. These devices allow synchronized LED effects throughout the crowd. [yeokm1] did a teardown of one obtained from a preview for the 2019 Singapore National Day Parade (NDP), and in the process learned about the devices …read more (https://hackaday.com/2019/11/26/pixmob-led-wristband-teardown-plus-ir-emitters-and-how-to-spot-them/)
The Strain of Flu Shot Logistics
https://hackaday.com/2019/11/26/the-strain-of-flu-shot-logistics/
Did you get a flu shot this year? How about last year? In a world of next-day delivery and instant downloads, making the yearly pilgrimage to the doctor or the minute clinic feels like an outdated concept. Even if you get your shots free at the office, it’s still a …read more (https://hackaday.com/2019/11/26/the-strain-of-flu-shot-logistics/)
https://hackaday.com/2019/11/26/the-strain-of-flu-shot-logistics/
Did you get a flu shot this year? How about last year? In a world of next-day delivery and instant downloads, making the yearly pilgrimage to the doctor or the minute clinic feels like an outdated concept. Even if you get your shots free at the office, it’s still a …read more (https://hackaday.com/2019/11/26/the-strain-of-flu-shot-logistics/)
A Super Easy Laser Engraver
https://hackaday.com/2019/11/26/a-super-easy-laser-engraver/
CNC comes in all shapes and sizes, from huge industrial lathes to homebuilt wire benders. [MJKZZ] has built their own compact rig, using optical drive parts to create a cute but effective laser engraver. (Video embedded below.)
The build aims to keep things simple by holding the laser stationary, and …read more (https://hackaday.com/2019/11/26/a-super-easy-laser-engraver/)
https://hackaday.com/2019/11/26/a-super-easy-laser-engraver/
CNC comes in all shapes and sizes, from huge industrial lathes to homebuilt wire benders. [MJKZZ] has built their own compact rig, using optical drive parts to create a cute but effective laser engraver. (Video embedded below.)
The build aims to keep things simple by holding the laser stationary, and …read more (https://hackaday.com/2019/11/26/a-super-easy-laser-engraver/)
The Young Engineers Guide To University Capstone Projects
https://hackaday.com/2019/11/26/the-young-engineers-guide-to-university-capstone-projects/
Engineering degrees are as wide and varied as the potential careers on offer out in the real world. There’s plenty of maths to learn, and a cavalcade of tough topics, from thermodynamics to fluid mechanics. However, the real challenge is the capstone project. Generally taking place in the senior year …read more (https://hackaday.com/2019/11/26/the-young-engineers-guide-to-university-capstone-projects/)
https://hackaday.com/2019/11/26/the-young-engineers-guide-to-university-capstone-projects/
Engineering degrees are as wide and varied as the potential careers on offer out in the real world. There’s plenty of maths to learn, and a cavalcade of tough topics, from thermodynamics to fluid mechanics. However, the real challenge is the capstone project. Generally taking place in the senior year …read more (https://hackaday.com/2019/11/26/the-young-engineers-guide-to-university-capstone-projects/)
Agora, A Hackable E-Paper Clock
https://hackaday.com/2019/11/26/agora-a-hackable-e-paper-clock/
[Daniel Zilinec] appreciates the aesthetics of e-paper and thought it would make a great clock.
The natural appearance of e-paper certainly appeals to a lot of hackers. We’ve seen everything from typewriters to trackers for imaginary money. The Agora clock is designed to be battery powered,;a classic night-stand alarm clock. …read more (https://hackaday.com/2019/11/26/agora-a-hackable-e-paper-clock/)
https://hackaday.com/2019/11/26/agora-a-hackable-e-paper-clock/
[Daniel Zilinec] appreciates the aesthetics of e-paper and thought it would make a great clock.
The natural appearance of e-paper certainly appeals to a lot of hackers. We’ve seen everything from typewriters to trackers for imaginary money. The Agora clock is designed to be battery powered,;a classic night-stand alarm clock. …read more (https://hackaday.com/2019/11/26/agora-a-hackable-e-paper-clock/)
Progressive or Thrash? How Metal Detectors Discriminate
https://hackaday.com/2019/11/26/progressive-or-thrash-how-metal-detectors-discriminate/
Metal detecting is a fun pastime, even when all you can find is a little bit of peace and a whole lot of pop tabs. [Huygens Optics] has a VLF-based metal detector that offers much more feedback than just a beep or no beep. This thing is fancy enough to …read more (https://hackaday.com/2019/11/26/progressive-or-thrash-how-metal-detectors-discriminate/)
https://hackaday.com/2019/11/26/progressive-or-thrash-how-metal-detectors-discriminate/
Metal detecting is a fun pastime, even when all you can find is a little bit of peace and a whole lot of pop tabs. [Huygens Optics] has a VLF-based metal detector that offers much more feedback than just a beep or no beep. This thing is fancy enough to …read more (https://hackaday.com/2019/11/26/progressive-or-thrash-how-metal-detectors-discriminate/)
Fail of the Week: Z-Tape is No Substitute for Solder
https://hackaday.com/2019/11/26/fail-of-the-week-z-tape-is-no-substitute-for-solder/
Here at Hackaday, we see all kinds of mechanical construction methods. Some are impressively solid and permanent, while others are obviously temporary in nature. The latter group is dominated by adhesives – sticky stuff like cyanoacrylate glue, Kapton tape, and the ever-popular hot glue. They’ve all got their uses in …read more (https://hackaday.com/2019/11/26/fail-of-the-week-z-tape-is-no-substitute-for-solder/)
https://hackaday.com/2019/11/26/fail-of-the-week-z-tape-is-no-substitute-for-solder/
Here at Hackaday, we see all kinds of mechanical construction methods. Some are impressively solid and permanent, while others are obviously temporary in nature. The latter group is dominated by adhesives – sticky stuff like cyanoacrylate glue, Kapton tape, and the ever-popular hot glue. They’ve all got their uses in …read more (https://hackaday.com/2019/11/26/fail-of-the-week-z-tape-is-no-substitute-for-solder/)
How to run ML Applications on Particle Hardware
https://hackaday.com/2019/11/26/how-to-run-ml-applications-on-particle-hardware/
With the release of TensorFlow Lite at Google I/O 2019, the accessible machine learning library is no longer limited to applications with access to GPUs. You can now run machine learning algorithms on microcontrollers much more easily, improving on-board inference and computation.
[Brandon Satrom] published a demo on how to …read more (https://hackaday.com/2019/11/26/how-to-run-ml-applications-on-particle-hardware/)
https://hackaday.com/2019/11/26/how-to-run-ml-applications-on-particle-hardware/
With the release of TensorFlow Lite at Google I/O 2019, the accessible machine learning library is no longer limited to applications with access to GPUs. You can now run machine learning algorithms on microcontrollers much more easily, improving on-board inference and computation.
[Brandon Satrom] published a demo on how to …read more (https://hackaday.com/2019/11/26/how-to-run-ml-applications-on-particle-hardware/)