Halloween may be over for another year, but UFOs in your yard are cool year-round. This one might take the cake. [frydom.john]’s excellent UFO is fully programmable and contains about …read more (https://hackaday.com/2023/11/15/backyard-ufo-is-out-of-this-world/)

After MEMS Microphones, MEMS Speakers Enter The Market
https://hackaday.com/2023/11/15/after-mems-microphones-mems-speakers-enter-the-market/

XMems Cowell MEMS-based tweeter on top of dynamic driver. (Credit: xMEMS)
" data-medium-file="https://hackaday.com/wp-content/uploads/2023/11/Cowell-Tweeter.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/11/Cowell-Tweeter.jpg?w=800">These days it’s hard to not come across solid-state (micro-electromechanical systems, MEMS) microphones, as they are now displacing electret microphones almost everywhere due to their small size and low cost. …read more (https://hackaday.com/2023/11/15/after-mems-microphones-mems-speakers-enter-the-market/)

The Linux Scheduler And How It Handles More Cores
https://hackaday.com/2023/11/15/the-linux-scheduler-and-how-it-handles-more-cores/

Sometimes you read an article headline and you find yourself re-reading it a few times before diving into the article. This was definitely the case for a recent blog post …read more (https://hackaday.com/2023/11/15/the-linux-scheduler-and-how-it-handles-more-cores/)

Robots: How The Pros Keep Them Safe
https://hackaday.com/2023/11/15/robots-how-the-pros-keep-them-safe/

Robotic safety standards are designed for commercial bots, but amateur robot builders should also consider ideas like the keepout zone where a mobile robot isn’t permitted to go or how …read more (https://hackaday.com/2023/11/15/robots-how-the-pros-keep-them-safe/)

Lessons in Mass Production from an Atari Punk Console
https://hackaday.com/2023/11/16/lessons-in-mass-production-from-an-atari-punk-console/

Sometimes the most interesting part of a project isn’t the widget itself, but what it teaches you about the manufacturing process. The story of the manufacturing scale-up of this Atari …read more (https://hackaday.com/2023/11/16/lessons-in-mass-production-from-an-atari-punk-console/)

Probably The Largest Selfie Camera In The World
https://hackaday.com/2023/11/16/probably-the-largest-selfie-camera-in-the-world/

Most readers will have some idea of how a camera works, with a lens placed in front of a piece of film or an electronic sensor, and the distance between …read more (https://hackaday.com/2023/11/16/probably-the-largest-selfie-camera-in-the-world/)

Tech In Plain Sight: What Does a Yellow Light Mean?
https://hackaday.com/2023/11/16/tech-in-plain-sight-what-does-a-yellow-light-mean/

The traffic light is a ubiquitous feature of modern life and is quite old — dating back to 1868 London, although that device was a modified railroad semaphore operated by …read more (https://hackaday.com/2023/11/16/tech-in-plain-sight-what-does-a-yellow-light-mean/)

A 3D Printed Grinder for Printed Lens Blanks
https://hackaday.com/2023/11/16/a-3d-printed-grinder-for-printed-lens-blanks/

When one thinks of applications for 3D printing, optical components don’t seem to be a good fit. With the possible exception of Fresnel lenses, FDM printing doesn’t seem up to …read more (https://hackaday.com/2023/11/16/a-3d-printed-grinder-for-printed-lens-blanks/)