Reuse, Recycle, and Revamp Earth's Future 🌎

We're in the middle of Hackaday Prize Challenge #2, which rewards the Dumpster diver. [Digi-Key is a proud sponsor of the 2022 Hackaday Prize]( [3602421454791242043.png] Wednesday, May 25, 2022 [Delta Belt Printer Can Go All Night »]( Round and Round We Go We're well into the second Challenge of the 2022 Hackaday Prize, which revolves around reuse, recycling, and revamping things with the intent of keeping them out of the landfill. Now this is Hackaday, so we're bound to see projects involving circuits, perhaps where there was none before. But entrants are certainly not limited to recyling electronics -- in fact, the more widely-accessible and scalable your solution, the better it is for the planet. [2022 Hackaday Prize]( So how does one save the world with recycling? Let's shed some light. About 20 years ago, a Brazilian mechanic named Alfred Moser invented a solar lamp in response to the frequent power outages. It works like a deck prism on a ship, refracting sunlight to illuminate a space. Using a standard plastic drink bottle, Moser added water and a little bit of bleach to inhibit growth, and then stuck the bottle through a hole in the roof and sealed around it. During the daylight hours, one bottle will light up a room like a 60-watt incandescent bulb and should last about 5 years. But it doesn't do anything at night, when people need inexpensive lighting most. [DIY Solar Bottle Lamps]( Enter the [solar bottle lamp designed by [Debasish Dutta]](. Though similar in design, it uses the sun a little differently. The solar panel converts solar energy to electrical, charging up a battery in daylight that powers one of two LEDs at night. This is all done with a simple two-transistor controller board, and a switch to choose between the high- and low-brightness LEDs once the sun goes down. It even has a battery protection circuit. Okay, so that one combines the power of the recycling bin with that of the parts bin. But seriously, there are many ways to reuse, revamp, and recycle the multitude of discarded folderol that humans produce each year. So here are a few projects that leverage waste of all types, from the organic to the vulcanized. Highlights from the IO POPULAR BITS [project thumbnail]( [Sustainable 3D Printing Honors Source Material]( Printing in plastic is so yesterday. With wood flour (fine sawdust) and nut shells, [Yvo de Haas] aims to make the binder jet printing process organic and green using [using their Oasis 3D printer](. [project thumbnail]( [Recycled Tire Table Reinvents the Wheel]( Recycling doesn't have to involve additive manufacturing devices of your own design. It's easy to keep tires out of the landfill when they make such handy stools and coffee tables. All it takes is a bit of dressing up and a set of legs. Might as well recycle those, too. [project thumbnail]( [The Emergency Exit May Be a Lie]( Ever regret having friends over once they've worn out their welcome? This is the coffee table for you. Just turn on the light to change from the mirrored surface to an emergency exit that's bigger on the inside. Hack Chat LIVE CHAT WITH LEADING EXPERTS EVERY WEDNESDAY [Today: Vintage Pro Audio Hack Chat]( Frank Olson will host [this week's Hack Chat](. If you've ever dabbled in music, you'll know that the gear needed to perform and play can be something special. The best of it is built to last, so much so that the gear is often far, far older than the performer. While you'll probably recognize Frank Olson's name from his unique niche as a maker of [wooden microphones]( he's also got a thing for vintage audio gear. He'll stop by the Hack Chat to talk all about the vintage preamps, mixers, effects pedals, mics, and recorders that make modern music just a little bit better. Featured Projects POPULAR BITS [Control All the Robots With One Remote]( [PCB Drill Press Looks Good In Wood]( [IoT Bookmark and Habit Tracker Are a Superheroic Pairing]( [Crowdsource Your Home's Art Gallery With This Postcard Frame]( Live Events MEETUPS, CONFERENCES AND WORKSHOPS [EMF Camp - Jun. 2 - 5, 2022]( Picture it: a temporary town of two-thousand-plus hackers, artists, geeks, crafters, scientists, and engineers enjoying a weekend of talks, performances, workshops, good beer, and fast internet access. Too bad you can't make this place your permanent address. [Hardwear.io - Jun. 6 - 10, 2022]( This security conference started in 2015 in order to give the hardware and security communities a platform built on discussing and solving the issues surrounding hardware security. This year, the conference returns in person for training sessions, talks, Capture the Flag competitions, and a HardPwn hacking contest like no other. [Midwest RepRap Fest - Jun. 24 - 26, 2022]( It's hard to believe, but this will be the 10th year for what is probably still the world's largest gathering related to 3D printing. While the Festival was limited-attendance in 2021, this year is a free-for-all in that you don't need a ticket to attend or set up, and tables are first come, first served. Good thing they have more space now. [A New HOPE - Jul. 22 - 24, 2022]( 2600's biennial hacker conference moved online during the pandemic, but dares to come back in person this summer at a new venue in Queens, NY. Although we'll surely miss the Hotel Pennsylvania, there's a lot more room to spread out around the mostly-deserted campus of St. John's University. [May Contain Hackers - Jul. 22 - 26, 2022]( Since 1989, a bunch of hackers from all over the world have descended upon the Netherlands for a few days of hacking, snacking, talking, and workshops. 2022 is no different, and we're sure that everyone will have a ton to talk about since [SHA2017](. [BornHack - Aug. 3 - 10, 2022]( Is there such a thing as Hacker Island? Yes, yes there is -- for seven glorious days in August. Remote as it may sound, there is plenty of Internet to go around, and even a barracks-style cabin if you don't want to sleep in a tent. [twitter]( [facebook]( [instagram]( [Terms of Use]( [Privacy Policy]( [Hackaday.io]( [Hackaday.com]( This email was sent to {EMAIL} [why did I get this?]( [unsubscribe from this list]( [update subscription preferences]( Hackaday · 61 South Fair Oaks Avenue · Suite 200 · Pasadena, CA 91105 · USA