Open Source Smart Display Takes the Long Way Around
https://hackaday.com/2019/07/31/open-source-smart-display-takes-the-long-way-around/
Thanks to the relatively low cost of the Raspberry Pi and high resolution LCD screens, “smart displays” have become a favorite project of those looking to clear out their parts bins. Just hook the Pi up to the screen, setup some software, and you’ve got yourself a digital bulletin board …read more (https://hackaday.com/2019/07/31/open-source-smart-display-takes-the-long-way-around/)
https://hackaday.com/2019/07/31/open-source-smart-display-takes-the-long-way-around/
Thanks to the relatively low cost of the Raspberry Pi and high resolution LCD screens, “smart displays” have become a favorite project of those looking to clear out their parts bins. Just hook the Pi up to the screen, setup some software, and you’ve got yourself a digital bulletin board …read more (https://hackaday.com/2019/07/31/open-source-smart-display-takes-the-long-way-around/)
Big Ol’ LED Wall Looks Cool, Can Draw Over 170 Amps
https://hackaday.com/2019/07/31/big-ol-led-wall-looks-cool-can-draw-over-170-amps/
Building giant LED walls comes with a serious set of challenges. Whether they lie in power, cable routing, or just finding a way to clock out data fast enough for all the pixels, it takes some doing to build a decent sized display. [Phill] wanted a statement piece for the …read more (https://hackaday.com/2019/07/31/big-ol-led-wall-looks-cool-can-draw-over-170-amps/)
https://hackaday.com/2019/07/31/big-ol-led-wall-looks-cool-can-draw-over-170-amps/
Building giant LED walls comes with a serious set of challenges. Whether they lie in power, cable routing, or just finding a way to clock out data fast enough for all the pixels, it takes some doing to build a decent sized display. [Phill] wanted a statement piece for the …read more (https://hackaday.com/2019/07/31/big-ol-led-wall-looks-cool-can-draw-over-170-amps/)
Reflecting On Margaret Hamilton: 50 Years After Apollo 11
https://hackaday.com/2019/07/31/reflecting-on-margaret-hamilton/
In celebration of the 50th anniversary of the first Apollo moon landing, Google created a 1.4-square-mile portrait of NASA software developer Margaret Hamilton using more than 107,000 mirrors from the Ivanpah Solar Facility in the Mojave Desert, a solar thermal power plant with a gross capacity of 392 megawatts.
The …read more (https://hackaday.com/2019/07/31/reflecting-on-margaret-hamilton/)
https://hackaday.com/2019/07/31/reflecting-on-margaret-hamilton/
In celebration of the 50th anniversary of the first Apollo moon landing, Google created a 1.4-square-mile portrait of NASA software developer Margaret Hamilton using more than 107,000 mirrors from the Ivanpah Solar Facility in the Mojave Desert, a solar thermal power plant with a gross capacity of 392 megawatts.
The …read more (https://hackaday.com/2019/07/31/reflecting-on-margaret-hamilton/)
Ping-Pong Ball Makes Great PID Example
https://hackaday.com/2019/07/31/ping-pong-ball-makes-great-pid-example/
It is a common situation in electronics to have a control loop, that is some sort of feedback that drives the input to a system such as a motor or a heater based upon a sensor to measure something like position or temperature. You’ll have a set point — whatever …read more (https://hackaday.com/2019/07/31/ping-pong-ball-makes-great-pid-example/)
https://hackaday.com/2019/07/31/ping-pong-ball-makes-great-pid-example/
It is a common situation in electronics to have a control loop, that is some sort of feedback that drives the input to a system such as a motor or a heater based upon a sensor to measure something like position or temperature. You’ll have a set point — whatever …read more (https://hackaday.com/2019/07/31/ping-pong-ball-makes-great-pid-example/)
Creative Limitation And The Super Nintendo Sound Chips
https://hackaday.com/2019/07/31/creative-limitation-and-the-super-nintendo-sound-chips/
The Super Nintendo recently experienced a surge in popularity, either from a combination of nostalgic 30-somethings recreating their childhoods, or because Nintendo released a “classic” version of this nearly-perfect video game system. Or a combination of both. But what made the system worthy of being remembered at all? With only …read more (https://hackaday.com/2019/07/31/creative-limitation-and-the-super-nintendo-sound-chips/)
https://hackaday.com/2019/07/31/creative-limitation-and-the-super-nintendo-sound-chips/
The Super Nintendo recently experienced a surge in popularity, either from a combination of nostalgic 30-somethings recreating their childhoods, or because Nintendo released a “classic” version of this nearly-perfect video game system. Or a combination of both. But what made the system worthy of being remembered at all? With only …read more (https://hackaday.com/2019/07/31/creative-limitation-and-the-super-nintendo-sound-chips/)
Reon Pocket Keeps You Cool With A Peltier Element
https://hackaday.com/2019/08/01/reon-pocket-keeps-you-cool-with-a-peltier-element/
With another summer of heatwaves leaving its mark on our planet, finding a way to stay cool during the day isn’t an easy task. From the morning and afternoon commute in public transport, to busy crowds outside during lunch hour, there are many times when you cannot just find a …read more (https://hackaday.com/2019/08/01/reon-pocket-keeps-you-cool-with-a-peltier-element/)
https://hackaday.com/2019/08/01/reon-pocket-keeps-you-cool-with-a-peltier-element/
With another summer of heatwaves leaving its mark on our planet, finding a way to stay cool during the day isn’t an easy task. From the morning and afternoon commute in public transport, to busy crowds outside during lunch hour, there are many times when you cannot just find a …read more (https://hackaday.com/2019/08/01/reon-pocket-keeps-you-cool-with-a-peltier-element/)
Driving P5 Panels With A Raspberry Pi
https://hackaday.com/2019/08/01/driving-p5-panels-with-a-raspberry-pi/
Building displays out of LEDs can be fun, but quickly becomes tedious as the pixel count increases. At this point, it’s worthwhile investing in off-the-shelf panels that have everything pre-soldered and ready to go. [Tom Hammond] wanted to run a P5 panel, and put a Raspberry Pi to work to …read more (https://hackaday.com/2019/08/01/driving-p5-panels-with-a-raspberry-pi/)
https://hackaday.com/2019/08/01/driving-p5-panels-with-a-raspberry-pi/
Building displays out of LEDs can be fun, but quickly becomes tedious as the pixel count increases. At this point, it’s worthwhile investing in off-the-shelf panels that have everything pre-soldered and ready to go. [Tom Hammond] wanted to run a P5 panel, and put a Raspberry Pi to work to …read more (https://hackaday.com/2019/08/01/driving-p5-panels-with-a-raspberry-pi/)
Automate the Freight: When the Freight is People
https://hackaday.com/2019/08/01/automate-the-freight-when-the-freight-is-people/
Before I got a license and a car, getting to and from high school was an ordeal. The hour-long bus ride was awful, as one would expect when sixty adolescents are crammed together with minimal supervision. Avoiding the realities going on around me was a constant chore, aided by frequent …read more (https://hackaday.com/2019/08/01/automate-the-freight-when-the-freight-is-people/)
https://hackaday.com/2019/08/01/automate-the-freight-when-the-freight-is-people/
Before I got a license and a car, getting to and from high school was an ordeal. The hour-long bus ride was awful, as one would expect when sixty adolescents are crammed together with minimal supervision. Avoiding the realities going on around me was a constant chore, aided by frequent …read more (https://hackaday.com/2019/08/01/automate-the-freight-when-the-freight-is-people/)
A Look At The Basics of Building an Arduino Watch
https://hackaday.com/2019/08/01/a-look-at-the-basics-of-building-an-arduino-watch/
Miniaturization has made smart watches possible, even for the DIY maker to tinker with. For those just getting to grips with basic digital electronics, it can be daunting, however. For those just starting out, [陳亮] put together a handy guide to building the core of an Arduino-based watch.
The writeup …read more (https://hackaday.com/2019/08/01/a-look-at-the-basics-of-building-an-arduino-watch/)
https://hackaday.com/2019/08/01/a-look-at-the-basics-of-building-an-arduino-watch/
Miniaturization has made smart watches possible, even for the DIY maker to tinker with. For those just getting to grips with basic digital electronics, it can be daunting, however. For those just starting out, [陳亮] put together a handy guide to building the core of an Arduino-based watch.
The writeup …read more (https://hackaday.com/2019/08/01/a-look-at-the-basics-of-building-an-arduino-watch/)
Supercon CFP Extended by Two Weeks
https://hackaday.com/2019/08/01/supercon-cfp-extended-by-two-weeks/
Need a bit more time to submit your talk proposal for the 2019 Hackaday Superconference? Okay, but we can only do this once. You now have until August 16th to submit your proposal.
Supercon is the ultimate hardware conference. Take all the best conversations you’ve had about electronics, firmware development, …read more (https://hackaday.com/2019/08/01/supercon-cfp-extended-by-two-weeks/)
https://hackaday.com/2019/08/01/supercon-cfp-extended-by-two-weeks/
Need a bit more time to submit your talk proposal for the 2019 Hackaday Superconference? Okay, but we can only do this once. You now have until August 16th to submit your proposal.
Supercon is the ultimate hardware conference. Take all the best conversations you’ve had about electronics, firmware development, …read more (https://hackaday.com/2019/08/01/supercon-cfp-extended-by-two-weeks/)
Abraham Wald’s Problem Solving Lesson is to Seek What’s Not There
https://hackaday.com/2019/08/01/abraham-walds-problem-solving-lesson-is-to-seek-whats-not-there/
You may not know the name Abraham Wald, but he has a very valuable lesson you can apply to problem solving, engineering, and many other parts of life. Wald worked for the Statistical Research Group (SRG) during World War II. This was part of a top secret organization in the …read more (https://hackaday.com/2019/08/01/abraham-walds-problem-solving-lesson-is-to-seek-whats-not-there/)
https://hackaday.com/2019/08/01/abraham-walds-problem-solving-lesson-is-to-seek-whats-not-there/
You may not know the name Abraham Wald, but he has a very valuable lesson you can apply to problem solving, engineering, and many other parts of life. Wald worked for the Statistical Research Group (SRG) during World War II. This was part of a top secret organization in the …read more (https://hackaday.com/2019/08/01/abraham-walds-problem-solving-lesson-is-to-seek-whats-not-there/)
CPAP Monitor Alerts Wearer To Malfunctions
https://hackaday.com/2019/08/01/cpap-monitor-alerts-wearer-to-malfunctions/
Continuous Positive Airway Pressure machines are a common treatment tool for sleep apnea and other respiratory issues. A common problem with their use is that the mask becomes dislodged during sleep, and thus fails to provide airway pressure to the patient. [Bin Sun] decided to take a stab at solving …read more (https://hackaday.com/2019/08/01/cpap-monitor-alerts-wearer-to-malfunctions/)
https://hackaday.com/2019/08/01/cpap-monitor-alerts-wearer-to-malfunctions/
Continuous Positive Airway Pressure machines are a common treatment tool for sleep apnea and other respiratory issues. A common problem with their use is that the mask becomes dislodged during sleep, and thus fails to provide airway pressure to the patient. [Bin Sun] decided to take a stab at solving …read more (https://hackaday.com/2019/08/01/cpap-monitor-alerts-wearer-to-malfunctions/)
Boost Your WiFi Range With Cookware
https://hackaday.com/2019/08/01/boost-your-wifi-range-with-cookware/
WiFi was the killer technology that made home networking easy. No more messing around with hubs and cables and drilling holes in walls, simply turn the devices on and hit connect. Over time the speed and range has increased, but those with larger houses or granny flats out back have …read more (https://hackaday.com/2019/08/01/boost-your-wifi-range-with-cookware/)
https://hackaday.com/2019/08/01/boost-your-wifi-range-with-cookware/
WiFi was the killer technology that made home networking easy. No more messing around with hubs and cables and drilling holes in walls, simply turn the devices on and hit connect. Over time the speed and range has increased, but those with larger houses or granny flats out back have …read more (https://hackaday.com/2019/08/01/boost-your-wifi-range-with-cookware/)
Quilting Desk Is An Absolute Unit
https://hackaday.com/2019/08/01/quilting-desk-is-an-absolute-unit/
Most hobbies come with a lot of tools, and thread injecting is no different. Quilting itself may be Queen Hobby when it comes to the sheer volume of things you can buy: specialized templates, clips, thimbles, disappearing ink pens, and so on. And of course, you want it all within …read more (https://hackaday.com/2019/08/01/quilting-desk-is-an-absolute-unit/)
https://hackaday.com/2019/08/01/quilting-desk-is-an-absolute-unit/
Most hobbies come with a lot of tools, and thread injecting is no different. Quilting itself may be Queen Hobby when it comes to the sheer volume of things you can buy: specialized templates, clips, thimbles, disappearing ink pens, and so on. And of course, you want it all within …read more (https://hackaday.com/2019/08/01/quilting-desk-is-an-absolute-unit/)
A Farewell To YouTube Sub Counters Set To Break With API Change
https://hackaday.com/2019/08/01/a-farewell-to-youtube-sub-counters-set-to-break-with-api-change/
Of all the things you never would have guessed you’d need just ten years ago, a YouTube subscriber counter would probably rank highly. You would have guessed that the little hits of dopamine accompanying each tick upward of a number would be so addictive?
As it turns out, lots of …read more (https://hackaday.com/2019/08/01/a-farewell-to-youtube-sub-counters-set-to-break-with-api-change/)
https://hackaday.com/2019/08/01/a-farewell-to-youtube-sub-counters-set-to-break-with-api-change/
Of all the things you never would have guessed you’d need just ten years ago, a YouTube subscriber counter would probably rank highly. You would have guessed that the little hits of dopamine accompanying each tick upward of a number would be so addictive?
As it turns out, lots of …read more (https://hackaday.com/2019/08/01/a-farewell-to-youtube-sub-counters-set-to-break-with-api-change/)
MDFourier Project Seeks The Genesis Of SEGA 16-bit Sound
https://hackaday.com/2019/08/01/mdfourier-project-seeks-the-genesis-of-sega-16-bit-sound/
It always sounded a bit crunchy, but crunchy in a good way. SEGA’s 16-bit console, whether you call it the Genesis or Mega Drive, always had a unique sound thanks to it’s Yamaha YM2612 sound chip. The chip’s ability to reproduce shredding guitars and blasting bass drums was a joy …read more (https://hackaday.com/2019/08/01/mdfourier-project-seeks-the-genesis-of-sega-16-bit-sound/)
https://hackaday.com/2019/08/01/mdfourier-project-seeks-the-genesis-of-sega-16-bit-sound/
It always sounded a bit crunchy, but crunchy in a good way. SEGA’s 16-bit console, whether you call it the Genesis or Mega Drive, always had a unique sound thanks to it’s Yamaha YM2612 sound chip. The chip’s ability to reproduce shredding guitars and blasting bass drums was a joy …read more (https://hackaday.com/2019/08/01/mdfourier-project-seeks-the-genesis-of-sega-16-bit-sound/)
Fake Graphics Cards And How To Fix Them
https://hackaday.com/2019/08/02/fake-graphics-cards-and-how-to-fix-them/
When shopping online, there’s plenty of great deals out there on modern graphics hardware. Of course, if you’re like [Dawid] and bought a GTX1050 Ti for $48 from Wish, you probably suspect it’s too good to be true. Of course, you’d be correct.
[Dawid] notes from the outset that the …read more (https://hackaday.com/2019/08/02/fake-graphics-cards-and-how-to-fix-them/)
https://hackaday.com/2019/08/02/fake-graphics-cards-and-how-to-fix-them/
When shopping online, there’s plenty of great deals out there on modern graphics hardware. Of course, if you’re like [Dawid] and bought a GTX1050 Ti for $48 from Wish, you probably suspect it’s too good to be true. Of course, you’d be correct.
[Dawid] notes from the outset that the …read more (https://hackaday.com/2019/08/02/fake-graphics-cards-and-how-to-fix-them/)
Ask Hackaday: How Would You Build This Flight Tracker for Kids?
https://hackaday.com/2019/08/02/ask-hackaday-how-would-you-build-this-flight-tracker-for-kids/
You’ve got to hand it to marketers – they really know how to make you want something. All it takes is a little parental guilt, a bit of technical magic, and bam, you’re locked into a product you never knew you needed.
This prototype flight tracking nightlight for kids is …read more (https://hackaday.com/2019/08/02/ask-hackaday-how-would-you-build-this-flight-tracker-for-kids/)
https://hackaday.com/2019/08/02/ask-hackaday-how-would-you-build-this-flight-tracker-for-kids/
You’ve got to hand it to marketers – they really know how to make you want something. All it takes is a little parental guilt, a bit of technical magic, and bam, you’re locked into a product you never knew you needed.
This prototype flight tracking nightlight for kids is …read more (https://hackaday.com/2019/08/02/ask-hackaday-how-would-you-build-this-flight-tracker-for-kids/)
This Week in Security: vxWorks, Expensive Email Fraud, and What’s in Your Wallet?
https://hackaday.com/2019/08/02/this-week-in-security-vxworks-expensive-email-fraud-and-whats-in-your-wallet/
This has been an interesting week. First off, security researchers at Armis discovered a set of serious vulnerabilities in the vxWorks Real Time Operating System (RTOS). Released under a name that sounds like the title of a western or caper movie, Urgent/11. Not familiar with vxWorks? It’s a toss-up as …read more (https://hackaday.com/2019/08/02/this-week-in-security-vxworks-expensive-email-fraud-and-whats-in-your-wallet/)
https://hackaday.com/2019/08/02/this-week-in-security-vxworks-expensive-email-fraud-and-whats-in-your-wallet/
This has been an interesting week. First off, security researchers at Armis discovered a set of serious vulnerabilities in the vxWorks Real Time Operating System (RTOS). Released under a name that sounds like the title of a western or caper movie, Urgent/11. Not familiar with vxWorks? It’s a toss-up as …read more (https://hackaday.com/2019/08/02/this-week-in-security-vxworks-expensive-email-fraud-and-whats-in-your-wallet/)
Computer Optimized 3D Printed Bookshelves
https://hackaday.com/2019/08/02/computer-optimized-3d-printed-bookshelves/
[Thomas] does a lot of interesting experiments with 3D printing and lately, he’s been using the free version of Fusion 360 to do topology optimization. He started with a blocky bookshelf bracket and let the software analyze the loads so it can remove pieces that don’t contribute a lot to …read more (https://hackaday.com/2019/08/02/computer-optimized-3d-printed-bookshelves/)
https://hackaday.com/2019/08/02/computer-optimized-3d-printed-bookshelves/
[Thomas] does a lot of interesting experiments with 3D printing and lately, he’s been using the free version of Fusion 360 to do topology optimization. He started with a blocky bookshelf bracket and let the software analyze the loads so it can remove pieces that don’t contribute a lot to …read more (https://hackaday.com/2019/08/02/computer-optimized-3d-printed-bookshelves/)