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Automate Sorting Your Trash With Some Healthy Machine Learning
https://hackaday.com/2019/09/01/automate-sorting-your-trash-with-some-healthy-machine-learning/

Sorting trash into the right categories is pretty much a daily bother. Who hasn’t stood there in front of the two, three, five or more bins (depending on your area and country), pondering which bin it should go into? [Alvaro Ferrán Cifuentes]’s SeparAItor project is a proof of concept robot …read more (https://hackaday.com/2019/09/01/automate-sorting-your-trash-with-some-healthy-machine-learning/)
Scrapyard Milling Machine Gets Work Done on a Budget
https://hackaday.com/2019/09/01/scrapyard-milling-machine-gets-work-done-on-a-budget/

Which to buy first, a lathe or a mill? It’s a tough question for the aspiring home machinist with limited funds to spend on machine tools, but of course the correct answer is a lathe. With a lathe, we are told, all other machine tools can be built, including a …read more (https://hackaday.com/2019/09/01/scrapyard-milling-machine-gets-work-done-on-a-budget/)
(Mis)use This Part to Attach 3D Printed Stuff to a Shaft
https://hackaday.com/2019/09/02/misuse-this-part-to-attach-3d-printed-stuff-to-a-shaft/

Interfacing a shaft to a 3D printed gear doesn’t have to be tricky. [Tlalexander] demonstrated a solution that uses one half of a spider coupling (or jaw coupling) to create an effective modular attachment. The picture above (and this older link) shows everything you need to know: the bottom of …read more (https://hackaday.com/2019/09/02/misuse-this-part-to-attach-3d-printed-stuff-to-a-shaft/)
After The Con: Da Bomb Badge Post Mortem
https://hackaday.com/2019/09/02/after-the-con-da-bomb-badge-post-mortem/

We’ve reported on the world of electronic badges here at Hackaday since their earliest origins in [Joe Grand]’s work for DEF CON 14 in 2006. In that time we’ve seen an astonishing variety of creations, covering everything from abstract artwork to pure functionality in a wearable device. But it’s not …read more (https://hackaday.com/2019/09/02/after-the-con-da-bomb-badge-post-mortem/)
Faux-Neon Sign Says What?, Auf Deutsch
https://hackaday.com/2019/09/02/faux-neon-sign-says-what-auf-deutsch/

To a speaker of English, a sign asking ‘Was?” may not make much sense. In German, however, the question is a more thought-provoking “What?” That’s exactly the point of this faux-neon sign created by [noniq]. The sign uses silicone-enclosed “neon-like” LED strips to spell out the question for all to …read more (https://hackaday.com/2019/09/02/faux-neon-sign-says-what-auf-deutsch/)
Process Characterization On The Cheap With A Custom Test Rig
https://hackaday.com/2019/09/02/process-characterization-on-the-cheap-with-a-custom-test-rig/

Testing is a key part of any product development cycle. Done right, it turns up unknown bugs and problems, and allows for them to be fixed prior to shipment. However, it can be a costly and time-consuming process. The [Bay Libre] team needed to do some work on power management, …read more (https://hackaday.com/2019/09/02/process-characterization-on-the-cheap-with-a-custom-test-rig/)
DIY 40FPS 16bpp Platformer on a Cortex M0+
https://hackaday.com/2019/09/02/diy-40fps-16bpp-platformer-on-a-cortex-m0/

Sure, you can play a bunch of retro games on a Raspberry Pi, but if you’re really hardcore, you build your own retro console and write your own games for it. [Nicola Wrachien]’s entry into this year’s Hackaday prize is his DIY Cortex M0+ game console and the platform game …read more (https://hackaday.com/2019/09/02/diy-40fps-16bpp-platformer-on-a-cortex-m0/)
The Numberwang Badge Brought Cheer To CCCamp 2019
https://hackaday.com/2019/09/02/the-numberwang-badge-brought-cheer-to-cccamp-2019/

While wandering through CCCamp last weekend, in between episodes of forcing Marmite on the unwary, I ran into the well-known Hackaday.io user [Prof. Fartsparkle]. In a last-minute sprint leading up to the con he built himself the Numberwang badge to join in the colorful after-dark festivities with beautiful board artwork …read more (https://hackaday.com/2019/09/02/the-numberwang-badge-brought-cheer-to-cccamp-2019/)
Aussies Find The True Meaning Of Drone Flight
https://hackaday.com/2019/09/02/aussies-find-the-true-meaning-of-drone-flight/

Ah, stereotypes. Once they’ve solidified it’s surprisingly hard to shake them. When non-Australians think of a generic Aussie then, the chances are that a Crocodile Dundee type of character will spring to mind — a ‘Strine-speaking outdoorsman with a beer in hand. This group of Aussies aren’t helping the case, …read more (https://hackaday.com/2019/09/02/aussies-find-the-true-meaning-of-drone-flight/)
RuneScape GBA Controller is a Nostalgic Mash-Up
https://hackaday.com/2019/09/02/runescape-gba-controller-is-a-nostalgic-mash-up/

For gamers, the early 2000s certainly stand out as a memorable era. The dawn of the 21st century ushered in the sixth generation of home video game consoles, with Sony, Nintendo, and Microsoft all releasing their systems within a few years of each other. Nintendo also released their Game Boy …read more (https://hackaday.com/2019/09/02/runescape-gba-controller-is-a-nostalgic-mash-up/)
Ham Radio Gets Embedded RTL-SDR
https://hackaday.com/2019/09/03/ham-radio-gets-embedded-rtl-sdr/

We usually think of the RTL-SDR as a low-cost alternative to a “real” radio, but this incredible project spearheaded by [Rodrigo Freire] shows that the two classes of devices don’t have to be mutually exclusive. After nearly 6 months of work, he’s developed and documented a method to integrate a …read more (https://hackaday.com/2019/09/03/ham-radio-gets-embedded-rtl-sdr/)
Null Shard Build Blurs Line Between Game And Reality with Laser Cutting, Mold Making, 3D Printing
https://hackaday.com/2019/09/03/null-shard-build-blurs-line-between-game-and-reality-with-laser-cutting-mold-making-3d-printing/

In The Room Three, players are tasked with collecting mysterious objects known as “Null Shards”. But it seems one player, who goes by the name [Juiceman], took this challenge a bit literally. Starting with promotional art released for the game, he embarked on an epic journey to create a …read more (https://hackaday.com/2019/09/03/null-shard-build-blurs-line-between-game-and-reality-with-laser-cutting-mold-making-3d-printing/)
3D Printing May be the Key to Practical Scramjets
https://hackaday.com/2019/09/03/3d-printing-may-be-the-key-to-practical-scramjets/

The first scramjet, an airbreathing jet engine capable of pushing an aircraft beyond Mach 5, was successfully flown in the early 1990s. But while pretty much any other technology you could imagine has progressed by leaps and bounds in the nearly 30 years that have passed, the state-of-the-art in hypersonic …read more (https://hackaday.com/2019/09/03/3d-printing-may-be-the-key-to-practical-scramjets/)
This Machine Learning Algorithm is Meta
https://hackaday.com/2019/09/03/this-machine-learning-algorithm-is-meta/

Suppose you ran a website releasing many articles per day about various topics, all following a general theme. And suppose that your website allowed for a comments section for discussion on those topics. Unless you are brand new to the Internet, you’ll also imagine that the comments section needs at …read more (https://hackaday.com/2019/09/03/this-machine-learning-algorithm-is-meta/)
Clean Water Technologies Hack Chat
https://hackaday.com/2019/09/03/clean-water-technologies-hack-chat/

Join us on Wednesday, September 4th at noon Pacific for the Clean Water Technologies Hack Chat with Ryan Beltrán!

Access to clean water is something that’s all too easy to take for granted. When the tap is turned, delivering water that won’t sicken or kill you when you drink it, …read more (https://hackaday.com/2019/09/03/clean-water-technologies-hack-chat/)
Dian Fossey, Gorilla Girl
https://hackaday.com/2019/09/03/dian-fossey-gorilla-girl/

Few people sacrifice themselves as completely as Dian Fossey did for the mountain gorillas of Africa. She fought tirelessly to protect them from poachers, cattle herders, zoo kidnappers, corrupt governments, and tourists. Dian left a comfortable life behind to make the misty slopes of an extinct volcano her home and …read more (https://hackaday.com/2019/09/03/dian-fossey-gorilla-girl/)
When Project Enclosures Go Bad: A Message From The Trenches
https://hackaday.com/2019/09/03/when-project-enclosures-go-bad-a-message-from-the-trenches/

A wall-mounted, electric car charging station doesn’t sound like it’d require the most exciting or complicated enclosure. This was pretty much the assumption [Mastro Gippo] and his team started out with when they decided to turn what came back from a product designer into a real enclosure for the ‘Prism’ …read more (https://hackaday.com/2019/09/03/when-project-enclosures-go-bad-a-message-from-the-trenches/)
A Pocket QWERTY For Arduino And More
https://hackaday.com/2019/09/03/a-pocket-qwerty-for-arduino-and-more/

If you want to add a keypad to your Arduino project, the options are pretty limited. There’s that red and blue 4×4 membrane we’ve all seen in password-protected door lock projects, and the phone layout version that does pretty much all the same tricks. Isn’t it time for a full …read more (https://hackaday.com/2019/09/03/a-pocket-qwerty-for-arduino-and-more/)
Building A Full-Fat Air Quality Monitor
https://hackaday.com/2019/09/03/building-a-full-fat-air-quality-monitor/

Over the years many people have made an air quality monitor station, usually of some configuration which measures particulates (PM2.5 & PM10). Some will also measure ozone (O3), but very few will meet the requirements that will allow one to calculate the Air Quality Index …read more (https://hackaday.com/2019/09/03/building-a-full-fat-air-quality-monitor/)
Solar-Harvesting Blinkenlights
https://hackaday.com/2019/09/03/solar-harvesting-blinkenlights/

A few years ago a fad ripped through the makersphere where people would build cheap, solar powered LED blinkers, glue a magnet to them, and throw them on anything metal. It was an interesting time, but luckily did not last for too long. With some effort and craftsmanship, though, the …read more (https://hackaday.com/2019/09/03/solar-harvesting-blinkenlights/)