Acoustic Drone Detection On the Cheap with ESP32
https://hackaday.com/2026/03/23/acoustic-drone-detection-on-the-cheap-with-esp32/

We don’t usually speculate on the true identity of the hackers behind these projects, but when [TN666]’s accoustic drone-detector crossed our desk with the name “Batear”, we couldn’t help but …read more (https://hackaday.com/2026/03/23/acoustic-drone-detection-on-the-cheap-with-esp32/)

PicoZ80 is a Drop-in Replacement for Everyone’s Favorite Zilog CPU
https://hackaday.com/2026/03/23/picoz80-is-a-drop-in-replacement-for-everyones-favorite-zilog-cpu/

The Z80 has been gone a couple of years now, but it’s very much not forgotten. Still, the day when new-old-stock and salvaged DIP-40 packaged Z80s will be hard to …read more (https://hackaday.com/2026/03/23/picoz80-is-a-drop-in-replacement-for-everyones-favorite-zilog-cpu/)

Low Self-Discharge, High-Voltage Supercapacitors Using Porous Carbon
https://hackaday.com/2026/03/23/low-self-discharge-high-voltage-supercapacitors-using-porous-carbon/

Supercapacitors rely mostly on double-layer capacitance to bridge the divide between chemical batteries and traditional capacitors, but they come with a number of weaknesses. Paramount among these are their relatively …read more (https://hackaday.com/2026/03/23/low-self-discharge-high-voltage-supercapacitors-using-porous-carbon/)

Venus Flytrap Takes Ride Through a Particle Accelerator
https://hackaday.com/2026/03/23/venus-flytrap-takes-ride-through-a-particle-accelerator/

In the blue corner, we have the VENUS FLYTRAP! In the red corner, we have the underdog of the century, AN ENTIRE PARTICLE ACCELERATOR. Yes, you read that right. When …read more (https://hackaday.com/2026/03/23/venus-flytrap-takes-ride-through-a-particle-accelerator/)

Disposable Vape Becomes Breath-Activated Synth
https://hackaday.com/2026/03/24/disposable-vape-becomes-breath-activated-synth/

Makers and hardware hackers have been collecting disposable vapes for some time now, usually to salvage their batteries or the unique displays many models now come with. But you can …read more (https://hackaday.com/2026/03/24/disposable-vape-becomes-breath-activated-synth/)

Direct Pressure Advance Measurement For Fast Calibration
https://hackaday.com/2026/03/24/direct-pressure-advance-measurement-for-fast-calibration/

Some people love fiddling with their 3D printers, others love printing. Some fiddle so they can spend more time printing, which is probably where this latest project comes in: an …read more (https://hackaday.com/2026/03/24/direct-pressure-advance-measurement-for-fast-calibration/)

From Zip To Nought: The Rise and Fall of Iomega
https://hackaday.com/2026/03/24/from-zip-to-nought-the-rise-and-fall-of-iomega/

If you were anywhere near a computer in the mid-to-late 1990s, you almost certainly encountered a Zip drive. That distinctive purple peripheral, with its satisfying clunk as you slotted in …read more (https://hackaday.com/2026/03/24/from-zip-to-nought-the-rise-and-fall-of-iomega/)