2025 Component Abuse Challenge: Playing Audio on a Microphone
https://hackaday.com/2025/11/10/2025-component-abuse-challenge-playing-audio-on-a-microphone/

Using a speaker as a microphone is a trick old enough to have become common knowledge, but how often do you see the hack reversed? As part of a larger …read more (https://hackaday.com/2025/11/10/2025-component-abuse-challenge-playing-audio-on-a-microphone/)

Testing Whether Fast Charging Kills Smartphone Batteries, and Other Myths
https://hackaday.com/2025/11/10/testing-whether-fast-charging-kills-smartphone-batteries-and-other-myths/

With batteries being such an integral part of smartphones, it’s little wonder that extending the period between charging and battery replacement has led to many theories and outright myths about …read more (https://hackaday.com/2025/11/10/testing-whether-fast-charging-kills-smartphone-batteries-and-other-myths/)

Investigating Soldering Iron Phantom Voltage
https://hackaday.com/2025/11/10/investigating-soldering-iron-phantom-voltage/

Just because you are paranoid doesn’t mean people aren’t out to get you. Do you think your soldering iron is after you? Well, [nanofix] asks (and answers): Is My Soldering …read more (https://hackaday.com/2025/11/10/investigating-soldering-iron-phantom-voltage/)