MIDI Harp Looks Pretty Sharp
https://hackaday.com/2019/08/17/midi-harp-looks-pretty-sharp/
[Julien] is one of those cool dads who shows his love with time invested rather than money spent. His daughter plays the harp, and you would not believe the price of concert harps. Even the cheap ones are several thousand USD. So naturally, he decided he would build her a …read more (https://hackaday.com/2019/08/17/midi-harp-looks-pretty-sharp/)
https://hackaday.com/2019/08/17/midi-harp-looks-pretty-sharp/
[Julien] is one of those cool dads who shows his love with time invested rather than money spent. His daughter plays the harp, and you would not believe the price of concert harps. Even the cheap ones are several thousand USD. So naturally, he decided he would build her a …read more (https://hackaday.com/2019/08/17/midi-harp-looks-pretty-sharp/)
NFC Business Cards to FPGA Cubes, Skull Badges to Bandoliers, Here’s the Hardware from Breakfast at DEF CON
https://hackaday.com/2019/08/17/nfc-business-cards-to-fpga-cubes-skull-badges-to-bandoliers-heres-the-hardware-from-breakfast-at-def-con/
We had our biggest Breakfast at DEF CON ever on Sunday. So big, in fact, that the carefully laid plans went awry immediately.
This is the fifth year we’ve hosted the event, which kicks off the final day of DEF CON with some hardware show-and-tell. We really thought we had …read more (https://hackaday.com/2019/08/17/nfc-business-cards-to-fpga-cubes-skull-badges-to-bandoliers-heres-the-hardware-from-breakfast-at-def-con/)
https://hackaday.com/2019/08/17/nfc-business-cards-to-fpga-cubes-skull-badges-to-bandoliers-heres-the-hardware-from-breakfast-at-def-con/
We had our biggest Breakfast at DEF CON ever on Sunday. So big, in fact, that the carefully laid plans went awry immediately.
This is the fifth year we’ve hosted the event, which kicks off the final day of DEF CON with some hardware show-and-tell. We really thought we had …read more (https://hackaday.com/2019/08/17/nfc-business-cards-to-fpga-cubes-skull-badges-to-bandoliers-heres-the-hardware-from-breakfast-at-def-con/)
Sensor lets Gestures and an Arduino Control the Tunes
https://hackaday.com/2019/08/17/sensor-lets-gestures-and-an-arduino-control-the-tunes/
Every time we watch Minority Report we want to make wild hand gestures at our computer — most of them polite. [Rootsaid] wanted to do the same and discovered that the PAJ7620 is an easy way to read hand gestures. The little sensor has a serial interface and can recognize …read more (https://hackaday.com/2019/08/17/sensor-lets-gestures-and-an-arduino-control-the-tunes/)
https://hackaday.com/2019/08/17/sensor-lets-gestures-and-an-arduino-control-the-tunes/
Every time we watch Minority Report we want to make wild hand gestures at our computer — most of them polite. [Rootsaid] wanted to do the same and discovered that the PAJ7620 is an easy way to read hand gestures. The little sensor has a serial interface and can recognize …read more (https://hackaday.com/2019/08/17/sensor-lets-gestures-and-an-arduino-control-the-tunes/)
Square Laser Harp is Hip
https://hackaday.com/2019/08/17/square-laser-harp-is-hip/
You know, we hadn’t realized how tired we were of vertical laser harps until we saw [Jonathan Bumstead]’s entry into the 2019 Hackaday Prize. It’s all well and good to imitate the design of the inspiring instrument. But the neat thing about synths is that they aren’t confined to the …read more (https://hackaday.com/2019/08/17/square-laser-harp-is-hip/)
https://hackaday.com/2019/08/17/square-laser-harp-is-hip/
You know, we hadn’t realized how tired we were of vertical laser harps until we saw [Jonathan Bumstead]’s entry into the 2019 Hackaday Prize. It’s all well and good to imitate the design of the inspiring instrument. But the neat thing about synths is that they aren’t confined to the …read more (https://hackaday.com/2019/08/17/square-laser-harp-is-hip/)
Enjoy A Refreshing Beverage With The Chilled Drink Calculator
https://hackaday.com/2019/08/17/enjoy-a-refreshing-beverage-with-the-chilled-drink-calculator/
Hackers are quite often the price conscious type, unwilling to pay jacked up prices for cold beverages when they can be purchased warm and in bulk for much lower cost. However, when guests are on the way and time is running out, it’s crucial to chill the drinks down to …read more (https://hackaday.com/2019/08/17/enjoy-a-refreshing-beverage-with-the-chilled-drink-calculator/)
https://hackaday.com/2019/08/17/enjoy-a-refreshing-beverage-with-the-chilled-drink-calculator/
Hackers are quite often the price conscious type, unwilling to pay jacked up prices for cold beverages when they can be purchased warm and in bulk for much lower cost. However, when guests are on the way and time is running out, it’s crucial to chill the drinks down to …read more (https://hackaday.com/2019/08/17/enjoy-a-refreshing-beverage-with-the-chilled-drink-calculator/)
Great Artificial Daylight Via Broken TVs
https://hackaday.com/2019/08/17/great-artificial-daylight-via-broken-tvs/
[DIY Perks] has long been a fan of lights that accurately mimic real daylight. Often choosing high-quality LEDs for his projects, lately he’s taken a different tack – using broken televisions to produce attractive home lighting solutions.
The hack involves removing the backlight from the damaged television or monitor. These …read more (https://hackaday.com/2019/08/17/great-artificial-daylight-via-broken-tvs/)
https://hackaday.com/2019/08/17/great-artificial-daylight-via-broken-tvs/
[DIY Perks] has long been a fan of lights that accurately mimic real daylight. Often choosing high-quality LEDs for his projects, lately he’s taken a different tack – using broken televisions to produce attractive home lighting solutions.
The hack involves removing the backlight from the damaged television or monitor. These …read more (https://hackaday.com/2019/08/17/great-artificial-daylight-via-broken-tvs/)
Adding A Co-Processor To Help SNES Games With Slowdown
https://hackaday.com/2019/08/18/adding-a-co-processor-to-help-snes-games-with-slowdown/
The Super Nintendo port of Gradius III is notable for being close to the arcade original, with its large, bright and colorful graphics. However, due to the limitation of the console’s hardware, the port is also well known for having constant slowdowns during gameplay, particularly during later sections. [Vitor] hacked …read more (https://hackaday.com/2019/08/18/adding-a-co-processor-to-help-snes-games-with-slowdown/)
https://hackaday.com/2019/08/18/adding-a-co-processor-to-help-snes-games-with-slowdown/
The Super Nintendo port of Gradius III is notable for being close to the arcade original, with its large, bright and colorful graphics. However, due to the limitation of the console’s hardware, the port is also well known for having constant slowdowns during gameplay, particularly during later sections. [Vitor] hacked …read more (https://hackaday.com/2019/08/18/adding-a-co-processor-to-help-snes-games-with-slowdown/)
ArduRover Boat Uses Tupperware To Float
https://hackaday.com/2019/08/18/ardurover-boat-uses-tupperware-to-float/
There’s nothing quite like the sight of a plastic box merrily sailing its way around a lake to symbolise how easy it is to get started in autonomous robotics. This isn’t a project we’re writing about because of technical excellence, but purely because watching an autonomous tupperware box navigate a …read more (https://hackaday.com/2019/08/18/ardurover-boat-uses-tupperware-to-float/)
https://hackaday.com/2019/08/18/ardurover-boat-uses-tupperware-to-float/
There’s nothing quite like the sight of a plastic box merrily sailing its way around a lake to symbolise how easy it is to get started in autonomous robotics. This isn’t a project we’re writing about because of technical excellence, but purely because watching an autonomous tupperware box navigate a …read more (https://hackaday.com/2019/08/18/ardurover-boat-uses-tupperware-to-float/)
Turning Scrap Metal Into Something To Work With
https://hackaday.com/2019/08/18/turning-scrap-metal-into-something-to-work-with/
Blacksmiths will frequently work to a customer’s commission, and sometimes those commissions can be somewhat unusual. [Copperrein] had just such a piece of work come his way, a ceremonial sword to be made from a supplied collection of iron and steel items. To render them into something useful he had …read more (https://hackaday.com/2019/08/18/turning-scrap-metal-into-something-to-work-with/)
https://hackaday.com/2019/08/18/turning-scrap-metal-into-something-to-work-with/
Blacksmiths will frequently work to a customer’s commission, and sometimes those commissions can be somewhat unusual. [Copperrein] had just such a piece of work come his way, a ceremonial sword to be made from a supplied collection of iron and steel items. To render them into something useful he had …read more (https://hackaday.com/2019/08/18/turning-scrap-metal-into-something-to-work-with/)
An All-In-One Conference Video Streaming Box
https://hackaday.com/2019/08/18/an-all-in-one-conference-video-streaming-box/
When running a hacker camp or other event, one of the many challenges faced by the organisers concerns the production and distribution of event videos. As the talks are recorded they must be put online, and with a load of talks to be processed it quickly becomes impractical to upload …read more (https://hackaday.com/2019/08/18/an-all-in-one-conference-video-streaming-box/)
https://hackaday.com/2019/08/18/an-all-in-one-conference-video-streaming-box/
When running a hacker camp or other event, one of the many challenges faced by the organisers concerns the production and distribution of event videos. As the talks are recorded they must be put online, and with a load of talks to be processed it quickly becomes impractical to upload …read more (https://hackaday.com/2019/08/18/an-all-in-one-conference-video-streaming-box/)
Suntracker Optimizes Solar Panels While Visualizing Sun’s Path
https://hackaday.com/2019/08/18/suntracker-optimizes-solar-panels-while-visualizing-suns-path/
If you have solar panels, you want soak up as much sunshine as you can to get your money’s worth. If you don’t have space for a lot of panels, the next best thing is repositioning the panels to catch the most rays. For his entry into the Hackaday Prize, …read more (https://hackaday.com/2019/08/18/suntracker-optimizes-solar-panels-while-visualizing-suns-path/)
https://hackaday.com/2019/08/18/suntracker-optimizes-solar-panels-while-visualizing-suns-path/
If you have solar panels, you want soak up as much sunshine as you can to get your money’s worth. If you don’t have space for a lot of panels, the next best thing is repositioning the panels to catch the most rays. For his entry into the Hackaday Prize, …read more (https://hackaday.com/2019/08/18/suntracker-optimizes-solar-panels-while-visualizing-suns-path/)
Hackaday Links: August 18, 2019
https://hackaday.com/2019/08/18/hackaday-links-august-18-2019/
To the surprise of nobody with the slightest bit of technical intuition or just plain common sense, the world’s first solar roadway has proven to be a complete failure. The road, covering one lane and stretching all of 1,000 meters across the Normandy countryside, was installed in 2016 to great …read more (https://hackaday.com/2019/08/18/hackaday-links-august-18-2019/)
https://hackaday.com/2019/08/18/hackaday-links-august-18-2019/
To the surprise of nobody with the slightest bit of technical intuition or just plain common sense, the world’s first solar roadway has proven to be a complete failure. The road, covering one lane and stretching all of 1,000 meters across the Normandy countryside, was installed in 2016 to great …read more (https://hackaday.com/2019/08/18/hackaday-links-august-18-2019/)
Exploring the Science Behind Dirty Air Filters
https://hackaday.com/2019/08/18/exploring-the-science-behind-dirty-air-filters/
Obviously, if the air filters in your home HVAC system are dirty, you should change them. But exactly how dirty is dirty? [Tim Rightnour] had heard it said that if you didn’t change your filter every month or so, it could have a detrimental effect on the system’s energy …read more (https://hackaday.com/2019/08/18/exploring-the-science-behind-dirty-air-filters/)
https://hackaday.com/2019/08/18/exploring-the-science-behind-dirty-air-filters/
Obviously, if the air filters in your home HVAC system are dirty, you should change them. But exactly how dirty is dirty? [Tim Rightnour] had heard it said that if you didn’t change your filter every month or so, it could have a detrimental effect on the system’s energy …read more (https://hackaday.com/2019/08/18/exploring-the-science-behind-dirty-air-filters/)
MIDI Controller in a Concertina Looks Sea Shanty-Ready
https://hackaday.com/2019/08/18/midi-controller-in-a-concertina-looks-sea-shanty-ready/
Did you know that the English concertina, that hand-pumped bellows instrument favored by sailors both legitimate and piratical in the Age of Sail, was invented by none other than [Sir Charles Wheatstone]? We didn’t, but [Dave Ehnebuske] knew that the venerable English gentleman was tickling the keys of his instrument …read more (https://hackaday.com/2019/08/18/midi-controller-in-a-concertina-looks-sea-shanty-ready/)
https://hackaday.com/2019/08/18/midi-controller-in-a-concertina-looks-sea-shanty-ready/
Did you know that the English concertina, that hand-pumped bellows instrument favored by sailors both legitimate and piratical in the Age of Sail, was invented by none other than [Sir Charles Wheatstone]? We didn’t, but [Dave Ehnebuske] knew that the venerable English gentleman was tickling the keys of his instrument …read more (https://hackaday.com/2019/08/18/midi-controller-in-a-concertina-looks-sea-shanty-ready/)
The Thermochromic Display You Didn’t Know You Needed
https://hackaday.com/2019/08/19/the-thermochromic-display-you-didnt-know-you-needed/
We love unique ways of displaying data here at Hackaday, and this ingenious thermochromic display created by [Moritz v. Sivers] more than fits the bill. Using sheets of color changing liquid crystals and careful temperature control of the plates they’re mounted on, he’s built a giant seven-segment display that can …read more (https://hackaday.com/2019/08/19/the-thermochromic-display-you-didnt-know-you-needed/)
https://hackaday.com/2019/08/19/the-thermochromic-display-you-didnt-know-you-needed/
We love unique ways of displaying data here at Hackaday, and this ingenious thermochromic display created by [Moritz v. Sivers] more than fits the bill. Using sheets of color changing liquid crystals and careful temperature control of the plates they’re mounted on, he’s built a giant seven-segment display that can …read more (https://hackaday.com/2019/08/19/the-thermochromic-display-you-didnt-know-you-needed/)
Warshipping: A Free Raspberry Pi In The Mail Is Not Always A Welcome Gift
https://hackaday.com/2019/08/19/warshipping-a-free-raspberry-pi-in-the-mail-is-not-always-a-welcome-gift/
Leading edge computer security is veiled in secrecy — a world where novel attacks are sprung on those who do not yet know what they need to protect against. Once certain tactics have played out within cool kids’ circles, they are introduced to the rest of the world. An IBM …read more (https://hackaday.com/2019/08/19/warshipping-a-free-raspberry-pi-in-the-mail-is-not-always-a-welcome-gift/)
https://hackaday.com/2019/08/19/warshipping-a-free-raspberry-pi-in-the-mail-is-not-always-a-welcome-gift/
Leading edge computer security is veiled in secrecy — a world where novel attacks are sprung on those who do not yet know what they need to protect against. Once certain tactics have played out within cool kids’ circles, they are introduced to the rest of the world. An IBM …read more (https://hackaday.com/2019/08/19/warshipping-a-free-raspberry-pi-in-the-mail-is-not-always-a-welcome-gift/)
Apollo’s PLSS And The Science Of Keeping Humans Alive In Space
https://hackaday.com/2019/08/19/apollos-plss-and-the-science-of-keeping-humans-alive-in-space/
Ever since humans came up with the bright idea to explore parts of the Earth which were significantly less hospitable to human life than the plains of Africa where humankind evolved, there’s been a constant pressure to better protect ourselves against the elements to keep our bodies comfortable. Those first …read more (https://hackaday.com/2019/08/19/apollos-plss-and-the-science-of-keeping-humans-alive-in-space/)
https://hackaday.com/2019/08/19/apollos-plss-and-the-science-of-keeping-humans-alive-in-space/
Ever since humans came up with the bright idea to explore parts of the Earth which were significantly less hospitable to human life than the plains of Africa where humankind evolved, there’s been a constant pressure to better protect ourselves against the elements to keep our bodies comfortable. Those first …read more (https://hackaday.com/2019/08/19/apollos-plss-and-the-science-of-keeping-humans-alive-in-space/)
DIY Gimbal For the Raspberry Pi Camera
https://hackaday.com/2019/08/19/diy-gimbal-for-the-raspberry-pi-camera/
If one wants a stabilized video feed from a drone, a gimbal setup is the way to go. However, the cheaper offerings are all rather similar, suited to a certain size and type of drone. [Jean] was building a smaller craft, so set out to create his own design specifically …read more (https://hackaday.com/2019/08/19/diy-gimbal-for-the-raspberry-pi-camera/)
https://hackaday.com/2019/08/19/diy-gimbal-for-the-raspberry-pi-camera/
If one wants a stabilized video feed from a drone, a gimbal setup is the way to go. However, the cheaper offerings are all rather similar, suited to a certain size and type of drone. [Jean] was building a smaller craft, so set out to create his own design specifically …read more (https://hackaday.com/2019/08/19/diy-gimbal-for-the-raspberry-pi-camera/)
Life at JPL Hack Chat
https://hackaday.com/2019/08/19/life-at-jpl-hack-chat/
Join us on Wednesday, August 21st at noon Pacific for the Life at JPL Hack Chat with Arko!
There’s a reason why people use “rocket science” as a metaphor for things that are hard to do. Getting stuff from here to there when there is a billion miles away and …read more (https://hackaday.com/2019/08/19/life-at-jpl-hack-chat/)
https://hackaday.com/2019/08/19/life-at-jpl-hack-chat/
Join us on Wednesday, August 21st at noon Pacific for the Life at JPL Hack Chat with Arko!
There’s a reason why people use “rocket science” as a metaphor for things that are hard to do. Getting stuff from here to there when there is a billion miles away and …read more (https://hackaday.com/2019/08/19/life-at-jpl-hack-chat/)
Milspec Teardown: ID-2124 Howitzer Data Display
https://hackaday.com/2019/08/19/milspec-teardown-id-2124-howitzer-data-display/
It’s time once again for another installment in “Milspec Teardown”, where we get to see what Uncle Sam spends all those defense dollars on. Battle hardened pieces of kit are always a fascinating look at what can be accomplished if money is truly no object. When engineers are given a …read more (https://hackaday.com/2019/08/19/milspec-teardown-id-2124-howitzer-data-display/)
https://hackaday.com/2019/08/19/milspec-teardown-id-2124-howitzer-data-display/
It’s time once again for another installment in “Milspec Teardown”, where we get to see what Uncle Sam spends all those defense dollars on. Battle hardened pieces of kit are always a fascinating look at what can be accomplished if money is truly no object. When engineers are given a …read more (https://hackaday.com/2019/08/19/milspec-teardown-id-2124-howitzer-data-display/)