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Cyborg, Or Leafy Sensor Array? | Hackaday
Some plants react quickly enough for our senses to notice, such as a Venus flytrap or mimosa pudica. Most of the time, we need time-lapse photography at a minimum to notice while more exotic sensors can measure things like microscopic pores opening and closing. As with any sensor reading, those measurements can be turned into action through a little trick we call automation. [Harpreet Sareen] and [Pattie Maes] at MIT brought these two ideas together in a way which we haven’t seen before where a plant has taken the driver’s seat in a project called Elowan. Details are sparse but the concept is easy enough to grasp.
hackaday  sensors  biosensors  plants  robotics 
10 hours ago by cyberchucktx
Circuit Sculpture Contest | Hackaday.io
Welcome to Hackaday's Circuit Sculpture Contest. Show us how beautiful wires and components can be when they themselves are the art!

Go beyond the printed circuit board and let the wires that connect components become art! Circuit Sculptures use wire and components to make something visually interesting, while still being a functioning circuit. Here are two great examples that inspired this contest:
hackaday  circuit  contest 
yesterday by cyberchucktx
Heated DryBox Banishes Filament Moisture for Under $20 | Hackaday
There has been a lot of activity from [Richard Horne] regarding 3D printing filaments lately; most recently he has shared two useful designs for upping one’s filament storage and monitoring game. The first is for a DIY Heated DryBox for 3D printing filament. It keeps filament dry not just by sealing it into a plastic box with some desiccant, but by incorporating a mild and economical heater intended for reptile habitats inside. Desiccant is great, but a gently heated enclosure can do wonders for driving away humidity in the right environment. The DryBox design also incorporates a handy little temperature and humidity sensor to show how well things are working.
3dprinting  filament  spool  hackaday 
yesterday by cyberchucktx
PCB Motor | Hackaday.io
"A smaller and cheaper brushless motor". Look at his other motor projects as well!
electronics  hackaday 
5 days ago by mechazoidal
PCBs without any substrate | Hackaday
"[Kimio Kosaka] is taking the concept of free-formed circuits to the next level with O’Baka Project No.7. It’s a fully functioning Arduino board, without the board."
arduino  electronics  pcb  sculpture  hackaday 
5 days ago by gohai
Daphne Oram and the Birth of Electronic Music
For most of human history, musical instruments were strictly mechanical devices. The musician either plucked something, blew into or across something, or banged on something to produce the sounds the occasion called for. All musical instruments, the human voice included, worked by vibrating air more or less directly as a result of these mechanical manipulations. Few composers took to the new opportunities offered by electronics like Daphne Oram. From earliest days, Daphne lived at the intersection of music and electronics, and her passion for pursuing “the sound” lead to one of the earliest and hackiest synthesizers, and a totally unique way of making music.
hackaday  music  opensource  history 
9 days ago by cyberchucktx
Teensy Liberates the ThinkPad Keyboard | Hackaday
[Frank Adams] liked the keyboard on his Lenovo ThinkPad T61 so much that he decided to design an adapter so he could use it over USB with the Teensy microcontroller. He got the Trackpoint working, and along the way managed to add support for a number of other laptop boards as well. Before you know it, he had a full-blown open source project on his hands. Those projects can sneak up on you when you least expect it…
hackaday  keyboard  arduimno  teensy 
9 days ago by cyberchucktx
Building Portable Linux Devices: Never Been Easier, But Still Hard | Hackaday
Thanks to spin-offs from technology developed for set-top boxes and mobile phones we can now buy any one of a pile of different boards that have almost equivalent power to a desktop computer. The experimenter can leverage that computing power to create their own small portables. Zerophone creator Arsenijs Picugins spoke about the tricky parts of designing a LInux portable at the recent Hackaday Superconference. Y
hackaday  raspberrypi  phone  mobile 
13 days ago by cyberchucktx
The Twenty Five Cent USB Microcontroller (With A Toolchain!) | Hackaday
Last year, Jiangsu Yuheng Co., Ltd introduced a new microcontroller. The CH554 is a microcontroller with an E8051 core with a 24 MHz clock, a little more than 1 kB of RAM, and a bit more than 14 kB split between the code and data Flash. In short, it’s nothing too spectacular, but it makes up for that with peripherals. It’s got SPI and ADCs and PWM, UARTs, and even a few capacitive touch channels. It’s also a USB device, with some chips in the series able to function as a USB host. You can buy this chip for a quarter through the usual retailers.
hackaday  microcontroller  usb 
13 days ago by cyberchucktx
Build A Plate Reverb From Ikea | Hackaday
Back before we all pirated FruityLoops, before ProTools, and before VSTs and DAWs, audio recording was much, much cooler. Reverbs were entire rooms. Sometimes they were springs. Sometimes, in the high-end music studios, reverbs were plates. Of course, very few places have a plate reverb anymore because they’re gigantic and expensive and software effects are small and cheap. That doesn’t mean a plate reverb is made of unobtanium. [Leo] just made his own plate reverb out of Ikea shelves and some simple electronics.

This build used an Ikea Bror shelving unit that cost about $50 sans meatballs. The electronics are a surface transducer and two piezo pickups. Total cost was about $100. That’s all that’s needed to put this plate reverb together, but the real trick is making it work as a reverb.
hackaday  music  sound  reverb  ikea 
14 days ago by cyberchucktx
SauceBot Uses G-Code to Apply Condiments with Precision | Hackaday
We have to admit to more than a little alarm when [ShaneR] sent us this tip, as on first reading it seemed to endorse the culinary sin of putting ketchup on barbecue. But then we watched the video below and realized this dispenser is only applying ketchup and mustard to hot dogs, and while some purists would quibble with the ketchup, we’ll let that slide. The applicator, dubbed SauceBot by the crew at Connected Community HackerSpace in Melbourne, appears to be purpose-built entirely from laser-cut acrylic, including the twin peristaltic pumps for extruding the ketchup and mustard.
hackaday  saucebot  3dprinting  food 
14 days ago by cyberchucktx
Real-time Driving of RGB LED Cube using Unity3D | Hackaday
RGB LED cubes are great, but building the cube is only half the battle – they also need to be driven. The larger the cube, the bigger the canvas you have to exercise your performance art, and the more intense the data visualization headache. This project solves the problem by using Unity to drive an RGB LED cube in real-time. We’re not just talking about driving the LEDs themselves at a low level, but how you what you want to display in each of those 512 pixels.
LED  cube  hackaday  unity3d 
16 days ago by cyberchucktx
A Guide For Driving LED Matrices | Hackaday
Building an LED matrix is a fun project, but it can be a bit of a pain. Usually it starts with hand-soldering individual LEDs and resistors together, then hooking them up to rows and columns so they can be driven by a microcontroller of some sort. The hangups surrounding the driver board generally revolve around the issue of getting constant brightness from LEDs regardless of how many in the row or column are illuminated at one time.
hackaday  led  drivers  display 
16 days ago by cyberchucktx
Sci-Hub: Breaking Down The Paywalls @ Hackaday
There’s a battle going on in academia between the scientific journal publishing companies that have long served as the main platform for peer review and spreading information, and scientists themselves who just want to share and have access to the work of their fellows. arxiv.org launched the first salvo, allowing researchers in physics to self-publish their own papers, and has gained some traction in mathematics and computer science. The Public Library of Science journals focus on biology and medicine and offer peer review services. There are many others, and even the big firms have been forced to recognize the importance of open science publication.
hackaday  media  science  journal  education  opensource 
16 days ago by cyberchucktx
Expanding 3D Printer Bed Stays True Under Fire | Hackaday
It’s hard to pass up another lesson in good machine design brought to us by [Mark Rehorst]. This time, [Mark] combats the relentless forces of bed deformation due to thermal expansion.

Did you think your printer stayed the same size when it heated up? Well, think again! According to [Mark’s] calculations, when heated, the bed can expand by as much as half a millimeter in the x/y direction. While x/y deformation seems like something we can ignore, that’s not always true. If our bed is rigidly fixed in place, then that change in dimension will only result in a warped bed as it tries to make space for itself.

Don’t give up yet though.
hackaday  3dprinting  3dprinter  hardware  bed 
26 days ago by cyberchucktx
DIY Telepresence Robot Built From Off-The-Shelf Parts | Hackaday
Telepresence hasn’t taken off in a big way just yet; it may take some time for society to adjust to robotic simulacra standing in for humans in face-to-face communications. Regardless, it’s an area of continuous development, and [MakerMan] has weighed in with a tidy DIY build that does the job.
hackaday  telepresence  phone  mobile 
27 days ago by cyberchucktx
Magnets and Printed Parts Make Quick-Disconnect Terminals | Hackaday
The Apple MagSafe power connector is long gone from their product line, but that doesn’t mean that magnetic connectors aren’t without their charms. It just takes the right application, and finding one might be easier with these homebrew magnetic connectors. We can think of a couple of ways these connectors would be useful, and we really like the look of the whole project.
hackaday  connectors  magnetic  3dprinted 
27 days ago by cyberchucktx

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