Assistive Tech and Op-Amp Challenges Are Ending Soon!

You have about two weeks to enter these contests. Here's some inspiration! [Digi-Key is a proud sponsor of the 2023 Hackaday Prize]( [3602421454791242043.png] Wednesday, May 24, 2023 [Building An Analog Lorenz Attractor Computer »]( These Challenges End Soon They say that all good things must come to an end. As far as Hackaday contests go, we'd have to agree -- both [the Assistive Tech challenge of the 2023 Hackaday Prize]( and [the Op-Amp Challenge]( are coming to an end within the next two weeks. To be clear, that's a deadline of 7:00AM PDT on Tuesday, May 30th for the best assistive technology you can come up with, and 9:00AM PDT on Tuesday, June 6th to show us what you can do with the venerable op-amp. [2023 Hackaday Prize: Assistive Tech Challenge]( The Assistive Tech challenge has been one of our favorite categories over the last ten years of hosting the Hackaday Prize. We always see great entries, and this year is no different. Check out a few of the projects below, or take a look at [all the entries we've received so far](. Op-amps are everywhere you look, especially in analog electronics. And if you need something filtered, buffered, or amplified, look no further. Show us what you can do in one of three categories -- Hyper-Precise, Oddballs, or the Classics -- and you stand to win one of three $150 Digi-Key shopping sprees. If you need inspiration, check out a few of the projects below, or [look over the entire competition](. Highlights from the IO POPULAR BITS [project thumbnail]( [Analog LED Wave Array Responds To Motion]( We'd like to reiterate that this is completely analog -- all computation is done with op-amps. Thanks to all those op-amps, there is no boot-up and thus no wait time. Best of all, the wave effect is completely smooth without any modulation. [project thumbnail]( [PionEar Helps Drivers Hear Emergency Sirens]( This visual alert system uses a TinyML board and AI to analyze external sound patterns and detect the sirens of emergency vehicles. The hearing-impaired driver is alerted with a bright light that's regulated by the TinyML so as not to dazzle the driver at night. [project thumbnail]( [CMOS Op-Amp Uses Discrete MOSFETs]( What do you do when there's a dearth of articles about MOSFET op-amps? Ideally, you create a well-documented project like [Mitsuru Yamada] did, which features an evaluation unit and a photo detector circuit that uses the homemade op-amp. Hack Chat LIVE CHAT WITH LEADING EXPERTS EVERY WEDNESDAY [Today: Design for 3D Printing Hack Chat]( Eric Utley will host [this week's Hack Chat](. Sending a design to your 3D printer is generally a pretty low-risk proposition. After all, if the part doesn't fit or isn't quite right, the worst case is that you're out a few cents of filament and a couple of hours of time. But the stakes are considerably higher when you're sending a design out to be printed, especially if you're doing something fancy like SLS printing. Getting that design right before hitting the virtual print button is what this Hack Chat is all about, as Eric Utley joins us from [Protolabs](. [Next Week: Open Source AR Hack Chat]( Raj Nakaraja will host [next week's Hack Chat](. The world we live often quite beautiful, but the things we can see are limited to a really narrow slice of the electromagnetic spectrum. Wouldn't it be nice to see ultraviolet light the way an insect can, or to visualize the radiation pattern of an antenna? Making the invisible visible is the job of augmented reality, and building it into your projects is getting easier these days, and we'll be sitting down with Raj Nakaraja, head of engineering at Brilliant Labs, to take an augmented look at open source AR. Featured Projects POPULAR BITS [Magnetic Core Memory Module Uses Copper Foil Tape]( [Anti-Tremor Cup Handle Is Mechanically Stabilized]( [Ultra Low-Noise Amplifier Takes Many Interesting Measurements]( [Dementia Ward Bedroom Monitor Uses In Situ Motion Sensor System]( Live Events MEETUPS, CONFERENCES AND WORKSHOPS [VCF Southwest 2023 - Jun. 23-25]( VCF Southwest is back in Texas after a 10-year hiatus. Come and listen to many speakers and streamers, the latter of which will be moderated by our own Bil Herd. Be sure to stick around for the auction and, of course, all the awesome stuff for sale by the exhibitors. [Midwest RepRap Fest - June 23-25]( Probably the biggest, baddest thing to happen to Goshen, Indiana, the Midwest RepRap Festival is now in it's 11th year (!). Yes, it's still at the county fairgrounds, but they have a bigger building now. Even though they expect 1800 visitors this year, entrance is still free for general attendees. [VCF Southeast 2023 - July 28-30]( VCF Southeast takes place in Atlanta, GA this year, and although the speaker list is currently a work in progress, you can just bet that dozens and dozens of vintage computing enthusiasts are gathering up all the cool stuff they're going to show and/or have for sale. [East Coast RepRap Fest - Sept 30 - Oct 1]( Billed as 17,000 square feet of fun, the best part of the East Coast RepRap Festival sounds like the 3D Printed Derby. Yeah, as in, a Pinewood Derby but with 3D-printed cars. Get your tickets today! [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