Here this circuit is based on the principle of audio amplification using operational amplifier and pulse width modulation using 555 Timer. In this article we are describing the principle, design and ...

Jake Peterson is Lifehacker’s Senior Technology Editor. He has a BFA in Film & TV from NYU, where he specialized in writing. Jake has been helping people with their technology professionally since ...

It could be about keeping up with the times or avoiding catastrophe.

A few weeks before WWDC, Apple previewed a few new accessibility features that will be coming later this year. One of those features was background sounds, which Apple plans to ship in iOS 15.

For the past week, I’ve been rethinking my approach to time tracking with the Timery app with a focus on simplicity and automation. I appreciate the insights into my habits and patterns afforded by ...