Lessons in Li-Ion Safety
https://hackaday.com/2019/11/13/lessons-in-li-ion-safety/
If you came here from an internet search because your battery just blew up and you don’t know how to put out the fire, then use a regular fire extinguisher if it’s plugged in to an outlet, or a fire extinguisher or water if it is not plugged in. Get …read more (https://hackaday.com/2019/11/13/lessons-in-li-ion-safety/)
https://hackaday.com/2019/11/13/lessons-in-li-ion-safety/
If you came here from an internet search because your battery just blew up and you don’t know how to put out the fire, then use a regular fire extinguisher if it’s plugged in to an outlet, or a fire extinguisher or water if it is not plugged in. Get …read more (https://hackaday.com/2019/11/13/lessons-in-li-ion-safety/)
Bicycle Transforms Mid-Ride
https://hackaday.com/2019/11/13/bicycle-transforms-mid-ride/
For those of us who were children in the late 80s and early 90s, we may have dreamed of one day owning a gigantic tractor trailer that could transform into a colossal fighting robot. Or of simply having a toy that could approximate this change from one form into another. …read more (https://hackaday.com/2019/11/13/bicycle-transforms-mid-ride/)
https://hackaday.com/2019/11/13/bicycle-transforms-mid-ride/
For those of us who were children in the late 80s and early 90s, we may have dreamed of one day owning a gigantic tractor trailer that could transform into a colossal fighting robot. Or of simply having a toy that could approximate this change from one form into another. …read more (https://hackaday.com/2019/11/13/bicycle-transforms-mid-ride/)
Ask Hackaday: Is Anyone Sad Phone VR is Dead?
https://hackaday.com/2019/11/13/ask-hackaday-is-anyone-sad-phone-vr-is-dead/
It’s official: smartphone-based VR is dead. The two big players in this space were Samsung Gear VR (powered by Oculus, which is owned by Facebook) and Google Daydream. Both have called it quits, with Google omitting support from their newer phones and Oculus confirming that the Gear VR has reached …read more (https://hackaday.com/2019/11/13/ask-hackaday-is-anyone-sad-phone-vr-is-dead/)
https://hackaday.com/2019/11/13/ask-hackaday-is-anyone-sad-phone-vr-is-dead/
It’s official: smartphone-based VR is dead. The two big players in this space were Samsung Gear VR (powered by Oculus, which is owned by Facebook) and Google Daydream. Both have called it quits, with Google omitting support from their newer phones and Oculus confirming that the Gear VR has reached …read more (https://hackaday.com/2019/11/13/ask-hackaday-is-anyone-sad-phone-vr-is-dead/)
An Open Source Toolbox for Studying the Earth
https://hackaday.com/2019/11/13/an-open-source-toolbox-for-studying-the-earth/
Fully understanding the planet’s complex ecosystem takes data, and lots of it. Unfortunately, the ability to collect detailed environmental data on a large scale with any sort of accuracy has traditionally been something that only the government or well-funded institutions have been capable of. Building and deploying the sensors necessary …read more (https://hackaday.com/2019/11/13/an-open-source-toolbox-for-studying-the-earth/)
https://hackaday.com/2019/11/13/an-open-source-toolbox-for-studying-the-earth/
Fully understanding the planet’s complex ecosystem takes data, and lots of it. Unfortunately, the ability to collect detailed environmental data on a large scale with any sort of accuracy has traditionally been something that only the government or well-funded institutions have been capable of. Building and deploying the sensors necessary …read more (https://hackaday.com/2019/11/13/an-open-source-toolbox-for-studying-the-earth/)
Break The Caps Lock Habit With This Annoying Buzzer
https://hackaday.com/2019/11/13/break-the-caps-lock-habit-with-this-annoying-buzzer/
The much-maligned Caps Lock key has been causing problems for decades, and its continued existence is controversial enough that Google decided to drop it all together in their Chromebooks. Until the rest of the industry decides to follow their lead, they’ll likely be no shortage of awkward emails or overly …read more (https://hackaday.com/2019/11/13/break-the-caps-lock-habit-with-this-annoying-buzzer/)
https://hackaday.com/2019/11/13/break-the-caps-lock-habit-with-this-annoying-buzzer/
The much-maligned Caps Lock key has been causing problems for decades, and its continued existence is controversial enough that Google decided to drop it all together in their Chromebooks. Until the rest of the industry decides to follow their lead, they’ll likely be no shortage of awkward emails or overly …read more (https://hackaday.com/2019/11/13/break-the-caps-lock-habit-with-this-annoying-buzzer/)
This Arduino Keeps Its Eyes On You
https://hackaday.com/2019/11/13/this-arduino-keeps-its-eyes-on-you/
[Will] wanted to build some animatronic eyes that didn’t require high-precision 3D printing. He wound up with a forgiving design that uses an Arduino and six servo motors. You can see the video of the eyes moving around in the video below.
The bill of materials is pretty simple and …read more (https://hackaday.com/2019/11/13/this-arduino-keeps-its-eyes-on-you/)
https://hackaday.com/2019/11/13/this-arduino-keeps-its-eyes-on-you/
[Will] wanted to build some animatronic eyes that didn’t require high-precision 3D printing. He wound up with a forgiving design that uses an Arduino and six servo motors. You can see the video of the eyes moving around in the video below.
The bill of materials is pretty simple and …read more (https://hackaday.com/2019/11/13/this-arduino-keeps-its-eyes-on-you/)
Peltier Device Experiments
https://hackaday.com/2019/11/13/peltier-device-experiments/
Once an exotic component, solid state heat pumps or Peltier devices are now pretty mainstream. The idea is simple: put electricity through a Peltier device and one side gets hot while the other side gets cold. [DroneBot] recently posted a video showing how these cool — really cool — devices …read more (https://hackaday.com/2019/11/13/peltier-device-experiments/)
https://hackaday.com/2019/11/13/peltier-device-experiments/
Once an exotic component, solid state heat pumps or Peltier devices are now pretty mainstream. The idea is simple: put electricity through a Peltier device and one side gets hot while the other side gets cold. [DroneBot] recently posted a video showing how these cool — really cool — devices …read more (https://hackaday.com/2019/11/13/peltier-device-experiments/)
Two Vintage Calculators In One
https://hackaday.com/2019/11/13/two-vintage-calculators-in-one/
The FPGA revolution that occurred within the past few decades was a boon to many people interested in “antique” electronics. The devices “wire together” logic elements as needed rather than emulating chips completely in a software layer, which makes them uniquely suited for replicating chips that are rare, no longer …read more (https://hackaday.com/2019/11/13/two-vintage-calculators-in-one/)
https://hackaday.com/2019/11/13/two-vintage-calculators-in-one/
The FPGA revolution that occurred within the past few decades was a boon to many people interested in “antique” electronics. The devices “wire together” logic elements as needed rather than emulating chips completely in a software layer, which makes them uniquely suited for replicating chips that are rare, no longer …read more (https://hackaday.com/2019/11/13/two-vintage-calculators-in-one/)
Upgrade Board Turns Typewriter into a Teletype
https://hackaday.com/2019/11/14/upgrade-board-turns-typewriter-into-a-teletype/
It may come as little surprise to find that Hackaday does not often play host to typewriter projects. While these iconic machines have their own particular charm, they generally don’t allow for much in the way of hardware modification. But then the IBM Wheelwriter 1000 isn’t exactly a traditional typewriter, …read more (https://hackaday.com/2019/11/14/upgrade-board-turns-typewriter-into-a-teletype/)
https://hackaday.com/2019/11/14/upgrade-board-turns-typewriter-into-a-teletype/
It may come as little surprise to find that Hackaday does not often play host to typewriter projects. While these iconic machines have their own particular charm, they generally don’t allow for much in the way of hardware modification. But then the IBM Wheelwriter 1000 isn’t exactly a traditional typewriter, …read more (https://hackaday.com/2019/11/14/upgrade-board-turns-typewriter-into-a-teletype/)
Aging Alcohol In 30 Minutes
https://hackaday.com/2019/11/14/aging-alcohol-in-30-minutes/
Many alcoholic beverages are aged in barrels for long periods of time. The aim is to impart flavors from the wood of the barrel into the liquid, and allow a whole host of chemical reactions to happen, changing the character of the taste. However, this takes time, and time is …read more (https://hackaday.com/2019/11/14/aging-alcohol-in-30-minutes/)
https://hackaday.com/2019/11/14/aging-alcohol-in-30-minutes/
Many alcoholic beverages are aged in barrels for long periods of time. The aim is to impart flavors from the wood of the barrel into the liquid, and allow a whole host of chemical reactions to happen, changing the character of the taste. However, this takes time, and time is …read more (https://hackaday.com/2019/11/14/aging-alcohol-in-30-minutes/)
Jubilee: A Toolchanging Homage to 3D Printer Hackers Everywhere
https://hackaday.com/2019/11/14/jubilee-a-toolchanging-homage-to-3d-printer-hackers-everywhere/
I admit that I’m late to the 3D printing game. While I just picked up my first printer in 2018, the rest of us have been oozing out beautiful prints for over a decade. And in that time we’ve seen many people reimagine the hardware for mischief besides just printing …read more (https://hackaday.com/2019/11/14/jubilee-a-toolchanging-homage-to-3d-printer-hackers-everywhere/)
https://hackaday.com/2019/11/14/jubilee-a-toolchanging-homage-to-3d-printer-hackers-everywhere/
I admit that I’m late to the 3D printing game. While I just picked up my first printer in 2018, the rest of us have been oozing out beautiful prints for over a decade. And in that time we’ve seen many people reimagine the hardware for mischief besides just printing …read more (https://hackaday.com/2019/11/14/jubilee-a-toolchanging-homage-to-3d-printer-hackers-everywhere/)
Ethernet, Over DC Power
https://hackaday.com/2019/11/14/ethernet-over-dc-power/
We’re used to extending our network connections and being no longer constrained in our use of Ethernet by proximity to a switch or hub. Our houses routinely contain wireless networks, and of course powerline-Ethernet units passing data over our mains wiring. [Peter Franck] had a similar problem but without the …read more (https://hackaday.com/2019/11/14/ethernet-over-dc-power/)
https://hackaday.com/2019/11/14/ethernet-over-dc-power/
We’re used to extending our network connections and being no longer constrained in our use of Ethernet by proximity to a switch or hub. Our houses routinely contain wireless networks, and of course powerline-Ethernet units passing data over our mains wiring. [Peter Franck] had a similar problem but without the …read more (https://hackaday.com/2019/11/14/ethernet-over-dc-power/)
Best Buy’s IoT Goes Dark, Leaving Some “Smart” Products Dumbfounded
https://hackaday.com/2019/11/14/best-buys-iot-goes-dark-leaving-some-smart-products-dumbfounded/
Bad news if you bought several Insignia-branded smart devices from Best Buy. The company has decided to shut down the back end systems that make them work — or at least work as a smart device. On the chopping block are smart outlets, switches, a security camera, and an upright …read more (https://hackaday.com/2019/11/14/best-buys-iot-goes-dark-leaving-some-smart-products-dumbfounded/)
https://hackaday.com/2019/11/14/best-buys-iot-goes-dark-leaving-some-smart-products-dumbfounded/
Bad news if you bought several Insignia-branded smart devices from Best Buy. The company has decided to shut down the back end systems that make them work — or at least work as a smart device. On the chopping block are smart outlets, switches, a security camera, and an upright …read more (https://hackaday.com/2019/11/14/best-buys-iot-goes-dark-leaving-some-smart-products-dumbfounded/)
Detecting Water Before it’s Too Late
https://hackaday.com/2019/11/14/detecting-water-before-its-too-late/
[mcu_nerd] is like any engineer, which is why his problem of an occasionally leaky water heater sure looks like a research project with no end in sight. Sure there’s probably a commercial product out there that can be had for half the cost and a few clicks of the mouse, …read more (https://hackaday.com/2019/11/14/detecting-water-before-its-too-late/)
https://hackaday.com/2019/11/14/detecting-water-before-its-too-late/
[mcu_nerd] is like any engineer, which is why his problem of an occasionally leaky water heater sure looks like a research project with no end in sight. Sure there’s probably a commercial product out there that can be had for half the cost and a few clicks of the mouse, …read more (https://hackaday.com/2019/11/14/detecting-water-before-its-too-late/)
5 Kilowatts In A 3D Printed Jet Boat
https://hackaday.com/2019/11/14/5-kilowatts-in-a-3d-printed-jet-boat/
Radio control projects used to be made of materials such as metal or wood, and involve lots of hand crafted parts. That’s still one way to go about things, but 3D printing has become a popular tool in recent years. [RCLifeOn] has been working on a 3D printed jet boat, …read more (https://hackaday.com/2019/11/14/5-kilowatts-in-a-3d-printed-jet-boat/)
https://hackaday.com/2019/11/14/5-kilowatts-in-a-3d-printed-jet-boat/
Radio control projects used to be made of materials such as metal or wood, and involve lots of hand crafted parts. That’s still one way to go about things, but 3D printing has become a popular tool in recent years. [RCLifeOn] has been working on a 3D printed jet boat, …read more (https://hackaday.com/2019/11/14/5-kilowatts-in-a-3d-printed-jet-boat/)
Giant Analog CO2 Meter Sweeps Away Doubt
https://hackaday.com/2019/11/14/giant-analog-co2-meter-sweeps-away-doubt/
Most of us are aware that trees turn CO₂ into oxygen, but we’d venture to guess that many people’s knowledge of this gas ends there. Is it feast or famine out there for the trees? Who can say? We admire [rabbitcreek]’s commitment to citizen science because he’s so focused on …read more (https://hackaday.com/2019/11/14/giant-analog-co2-meter-sweeps-away-doubt/)
https://hackaday.com/2019/11/14/giant-analog-co2-meter-sweeps-away-doubt/
Most of us are aware that trees turn CO₂ into oxygen, but we’d venture to guess that many people’s knowledge of this gas ends there. Is it feast or famine out there for the trees? Who can say? We admire [rabbitcreek]’s commitment to citizen science because he’s so focused on …read more (https://hackaday.com/2019/11/14/giant-analog-co2-meter-sweeps-away-doubt/)
Audio Processing in Rust
https://hackaday.com/2019/11/14/audio-processing-in-rust/
[Michael] volunteers with emergency services, and sometimes has to monitor radio traffic. Sometimes there’s a lot to review, and to make it easier he wrote a noise gate — think of it as a squelch — to break apart recorded audio into parts. Rust has been gaining popularity for writing …read more (https://hackaday.com/2019/11/14/audio-processing-in-rust/)
https://hackaday.com/2019/11/14/audio-processing-in-rust/
[Michael] volunteers with emergency services, and sometimes has to monitor radio traffic. Sometimes there’s a lot to review, and to make it easier he wrote a noise gate — think of it as a squelch — to break apart recorded audio into parts. Rust has been gaining popularity for writing …read more (https://hackaday.com/2019/11/14/audio-processing-in-rust/)
Quick And Dirty Digital Conversion For Analog SLR
https://hackaday.com/2019/11/14/quick-and-dirty-digital-conversion-for-analog-slr/
The unarguable benefits of digital photography has rendered the analog SLR obsolete for most purposes. This means that a wide selection of cameras and lenses are available on the second hand market for pennies on the dollar, making them ripe targets for hacking. [drtonis] decided to experiment with a quick …read more (https://hackaday.com/2019/11/14/quick-and-dirty-digital-conversion-for-analog-slr/)
https://hackaday.com/2019/11/14/quick-and-dirty-digital-conversion-for-analog-slr/
The unarguable benefits of digital photography has rendered the analog SLR obsolete for most purposes. This means that a wide selection of cameras and lenses are available on the second hand market for pennies on the dollar, making them ripe targets for hacking. [drtonis] decided to experiment with a quick …read more (https://hackaday.com/2019/11/14/quick-and-dirty-digital-conversion-for-analog-slr/)
A Radio for the Apocalypse
https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/
There’s been a spate of apocalypse related articles over the last few weeks, but when I saw an AM radio made from a hand-wound coil and an oxidized British penny, I couldn’t help but be impressed. We’ve covered foxhole radios, stereotypical radios that are cobbled together from found parts during …read more (https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/)
https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/
There’s been a spate of apocalypse related articles over the last few weeks, but when I saw an AM radio made from a hand-wound coil and an oxidized British penny, I couldn’t help but be impressed. We’ve covered foxhole radios, stereotypical radios that are cobbled together from found parts during …read more (https://hackaday.com/2019/11/15/a-radio-for-the-apocalypse/)
Credit Card Skimmers Evolve – Shimmers Are Here
https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/
Credit cards are loaded with security features, but the game of cat and mouse goes on. Nefarious syndicates continue to develop technology to steal data in new and innovate ways. After SparkFun did a teardown on some illicit hardware, they were visited by local law enforcement, who requested their help …read more (https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/)
https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/
Credit cards are loaded with security features, but the game of cat and mouse goes on. Nefarious syndicates continue to develop technology to steal data in new and innovate ways. After SparkFun did a teardown on some illicit hardware, they were visited by local law enforcement, who requested their help …read more (https://hackaday.com/2019/11/15/credit-card-skimmers-evolve-shimmers-are-here/)