Fungi make up a massive, interconnected part of Earth’s ecosystems, yet they’re vastly underrepresented in research and public consciousness compared to plants and animals. That may change in the future …read more (https://hackaday.com/2025/10/28/mushrooms-as-computer-memory/)

Analog Surround Sound Was Everywhere, But You Probably Didn’t Notice
https://hackaday.com/2025/10/28/analog-surround-sound-was-everywhere-but-you-probably-didnt-notice/

Stereo optical sound tracks can be seen on the right of this scan of a 35 mm film print. On the far left is the SDDS digital audio track in blue, with the Dolby Digital audio track visible in between the sprocket holes. Modern film prints often include multiple audio formats like this so a single print can be sent to a wide range of cinemas, whatever their equipment.
" data-medium-file="https://hackaday.com/wp-content/uploads/2025/10/35mm_film_audio_macro.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2025/10/35mm_film_audio_macro.jpg?w=800">These days, most of the media we consume is digital. We still watch movies and TV shows, but they’re all packaged in digital files that cram in many millions of …read more (https://hackaday.com/2025/10/28/analog-surround-sound-was-everywhere-but-you-probably-didnt-notice/)

Give ATMega88 the Boot With This Retro Front Panel
https://hackaday.com/2025/10/28/give-atmega88-the-boot-with-this-retro-front-panel/

It’s a truism that a computer must boot before it begins to operate. Nowadays that bootstrapping process is automatic, but in the case of the very first home computers, it …read more (https://hackaday.com/2025/10/28/give-atmega88-the-boot-with-this-retro-front-panel/)

Know Audio: Lossy Compression Algorithms And Distortion
https://hackaday.com/2025/10/28/know-audio-lossy-compression-algorithms-and-distortion/

In previous episodes of this long-running series looking at the world of high-quality audio, at every point we’ve stayed in the real world of physical audio hardware. From the human …read more (https://hackaday.com/2025/10/28/know-audio-lossy-compression-algorithms-and-distortion/)

2025 Component Abuse Challenge: A Bistable Flip-Flop With A Fuse
https://hackaday.com/2025/10/28/2025-component-abuse-challenge-a-bistable-flip-flop-with-a-fuse/

The flip-flop, in whichever of its several forms you encounter it, is a staple of logic design. Any time that you need to hold onto something, count, or shift bits, …read more (https://hackaday.com/2025/10/28/2025-component-abuse-challenge-a-bistable-flip-flop-with-a-fuse/)

Original E39 Head Unit Modernized
https://hackaday.com/2025/10/28/original-e39-head-unit-modernized/

Although most modern cars have moved to using proprietary components nearly everywhere, especially when it comes to infotainment systems, for a brief moment which peaked in the 90s and 00s …read more (https://hackaday.com/2025/10/28/original-e39-head-unit-modernized/)

Testing Cheap DC Breakers and How to Not Start Fires
https://hackaday.com/2025/10/28/testing-cheap-dc-breakers-and-how-to-not-start-fires/

One characteristic of adding PV solar to homes is a massive increase in high-voltage and high-current DC installations. With this comes a need for suitable breakers, but without the requisite …read more (https://hackaday.com/2025/10/28/testing-cheap-dc-breakers-and-how-to-not-start-fires/)