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Paper Toy Can Save Lives (paper centrifuge) @ Hackaday
Although there is a lot of discussion about health care problems in big countries like the United States, we often don’t realize that this is a “first world” problem. In many places, obtaining health care of any kind can be a major problem. In places where water and electricity are scarce, a lot of modern medical technology is virtually unobtainable. A team from Standford recently developed a cheap, easily made centrifuge using little more than paper, scrap material like wood or PVC pipe, and string.
diy  health  medicine  hackaday  centrifuge  diagnostics  biology  chemistry 
6 days ago by cyberchucktx
Three-Conductor Pivot for E-Textiles is Better Than Wires | Hackaday
Pivots for e-textiles can seem like a trivial problem. After all, wires and fabrics bend and flex just fine. However, things that are worn on a body can have trickier needs. Snap connectors are the usual way to get both an electrical connection and a pivot point, but they provide only a single conductor. When [KOBAKANT] had a need for a pivoting connection with three electrical conductors, they came up with a design that did exactly that by using a flexible circuit board integrated to a single button snap.
hackaday  wearables  medical  snap  button  fabric 
6 days ago by cyberchucktx
A Trove of Cosplay Prop Making Tutorials and Blueprints | Hackaday
Like we said earlier, if building such stuff is your thing, it’s a rabbit hole from which you’ll find it extremely difficult to extract yourself. Have fun.
hackaday  cosplay  wearables  costumes 
10 days ago by cyberchucktx
State Of The Art Big Mouth Alexa Bass | Hackaday
Hackers seem intent on making sure the world doesn’t forget that, for a brief shining moment, everyone thought Big Mouth Billy Bass was a pretty neat idea. Every so often we see a project that takes this classic piece of home decor and manages to shoehorn in some new features or capabilities, and with the rise of voice controlled home automation products from the likes of Amazon and Google, they’ve found a new ingredient du jour when preparing stuffed bass.

[Ben Eagan] has recently completed his entry into the Pantheon of animatronic fish projects, and while we’ll stop short of saying the world needed another Alexa-enabled fish on the wall, we’ve got to admit that he’s done a slick job of it. Rather than trying to convince Billy’s original electronics to play nice with others, he decided to just rip it all out and start from scratch.
hackaday  alexa  bass  billybass  arduino  voicerecognition  amazon 
12 days ago by cyberchucktx
Easy GUI Front Ends for Arduino, Rasberry Pi, and More with MyOpenLab@ Hackaday
If you want to integrate a nice graphical interface with a microcontroller or single-board computer for a useful piece of custom equipment, how will you go about it? MyOpenLab is a platform that makes it easy to design virtual interfaces your electronic builds. If you want controls and readouts for Arduino, Raspberry Pi, Android, or anything with a serial port, this is worth a try.

MyOpenLab reminds me of LabView
hackaday  visual  arduio  ide 
12 days ago by cyberchucktx
Sudo Find Me a Parking Space; Machine Learning Ends Circling the Block | Hackaday
If you live in a bustling city and have anyone over who drives, it can be difficult for them to find parking. Maybe you have an assigned space, but they’re resigned to circling the block with an eagle eye. With those friends in mind, [Adam Geitgey] wrote a Python script that takes the video feed from a web cam and analyzes it frame by frame to figure out when a street parking space opens up. When the glorious moment arrives, he gets a text message via Twilio with a picture of the void.

It sounds complicated, but much of the work has already been done. Cars are a popular target for machine learning, so large data sets with cars already exist. [Adam] didn’t have to train a neural network, either–he found a pre-trained Mask R-CNN model with data for 80 common objects like people, animals, and cars.
hackaday  parking  imageprocessing 
15 days ago by cyberchucktx
Linux Fu: Easier File Watching | Hackaday
In an earlier installment of Linux Fu, I mentioned how you can use inotifywait to efficiently watch for file system changes. But there was one very easy-to-use tool that didn’t show up, so I wanted to talk about it. That tool is entr.The program is dead simple. It reads a list of file names on its standard input. It will then run a command and repeat it any time the input files change.
hackaday  linux  linuxfu  sysadmin  filesystem 
19 days ago by cyberchucktx
How to Build Anything Out of Aluminum Extrusion and 3D Printed Brackets | Hackaday
The real power of 3D printing is in infinite customization of parts. This becomes especially powerful when you combine 3D printing with existing materials. I have been developing a few simple tricks to make generic fasteners and printed connectors a perfect match for aluminum extrusion, via a novel twist or two on top of techniques you may already know.
hackaday  3dprinting  aluminum  extrusion  beams  rails 
20 days ago by cyberchucktx
Cheeseborg: The Grilled Cheese Robot!
But if you’re too sick to grill up your own and don’t have anyone to do it for you, this grilled cheese sandwich-making robot might be the perfect kitchen accessory. Dubbed “The Cheeseborg” and built as a semester project by [Taylor Tabb], [Mitchell Riek], and [Evan Hill] at Carnegie-Mellon University, the bot takes a few shortcuts that might rankle the grilled cheese purist. Chief among these is the use of a sandwich press rather than a plain griddle.
youtube  hackaday  cooking  robot 
22 days ago by cyberchucktx
Docker, Databases, and Dashboards to Deal with Your Data | Hackaday
Here’s a short tutorial to get you up and running with a database backend on a Raspberry Pi and a slick dashboard on your laptop or cellphone. We’ll be using scripts and Docker to automate as many things as possible. Even so, along the way you’ll learn a little bit about Python and Docker, but more importantly you’ll have a system of your own for expansion, customization, or simply experimenting with at home. After all, if the “cloud” won’t let you play around with their database, how much fun can it be, really?
docker  dashboard  hackaday  containers  database  iot  internetofthings  raspberrypi 
27 days ago by cyberchucktx
Long-Range RFID With Feedback | Hackaday
If you’re catching up, passive RFID technology is behind the key fobs and stickers which don’t need power, just proximity to the reader’s antenna. This is a much “hackier” version that works with discrete signals instead of analog ones. It will not however require writing a new library and programming new tags from the ground up just for the user to get started, so there is that trade-off. Sparkfun offers a UHF reader which can simultaneously monitor 25 of the UHF tags shown in this paper.

To construct one of these enhanced tags, the antenna trace is broken and then routed through a switching device such as a glass-break sensor, temperature limit switch, doorbell, or light sensor. Whenever continuity is restored the tag will happily send back its pre-programmed data, and the reader will acknowledge that somewhere one of the tags is seeing some activity.
hackaday  mobile  wireless  sensor  iot  internetofthings  rfid 
4 weeks ago by cyberchucktx
Retrofit Clapper Light Switch | Hackaday.io
An Arduino clap controller you can retrofit to a UK light switch. Great for home automation!
hackaday  homeautomation  3dmodel  3dprinting  arduino  switch  video 
4 weeks ago by cyberchucktx
DIY Clapper is 1980s Style With Raspberry Pi Twist | Hackaday
Home automation isn’t all that new. It is just more evolved. Many years ago, a TV product appeared called the Clapper. If you haven’t heard of it, it was basically a sound-operated AC switch. You plug, say, a lamp into the device and the clapper into the wall and you can then turn the lamp on or off by clapping. If you somehow missed these — and you can still get them, apparently — have a look at the 1984 commercial in the video below. [Ash] decided to forego ordering one on Amazon and instead built her own using a Raspberry Pi.
hackaday  clapper  homeautomation 
4 weeks ago by cyberchucktx
Breakfast Bot Does Eggs To Perfection | Hackaday
Breakfast is a meal fraught with paradoxes. It’s important to start the day with a hearty meal full of energy and nutrition, but it’s also difficult to cook when you’re still bleary-eyed and half asleep. As with many problems in life, automation is the answer. [James Bruton] has the rig that will boil your egg and get your day off to a good start.

The basic apparatus uses a thermostatically controlled hotplate to heat a pot of water. [James] then employs an encoder-controlled linear actuator from a previous project to raise and lower a mesh colander into the pot, carrying the egg. An Arduino is used to measure the water temperature, only beginning the cooking process once the temperature is over 90 degrees Celsius. At this point, a 6-minute timer starts, with the egg being removed from the water and dumped out by a servo-controlled twist mechanism.
hackaday  breakfast  egg  cooking  culinary  tutorial  arduino 
4 weeks ago by cyberchucktx
Hack Your Gmail: A Quick Start for Google App Scripting | Hackaday
Google provides a lot of features with all of its products, but however you slice it, all the code runs on their servers out of your reach. Sort of. If you know JavaScript, you can use Google Apps Script to add features to many Google products including Gmail. If you’ve used Office scripting, the idea is the same, although obviously the implementation is very different.

With scripting you can make sophisticated filters that would be very hard to do otherwise. For example, monitor for suspicious messages like those with more than 4 attachments, or that appear to come from a contact between the hours of 2AM and 5AM.
google  hackaday  scripting  gmail 
4 weeks ago by cyberchucktx

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