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 Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

We may earn commission from links on this page, but we only recommend products we love. Promise. Ahead, check out the best sleep sound machines your $$$ can buy, including travel-friendly models, ...

Sometimes you can see a trend coming a mile away and, if there ever was one coming for the technology community, this is surely it. Google's Android clock app has long allowed users to add a custom ...

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 ...

One of best uses of smartphones early in the morning is the alarm. It will awaken you or remind you of your schedule for the day. But most of the time, the alarm sound can be very loud or not pleasing ...

You are at home, browsing the web, or watching a movie on Netflix and the only element disrupting your peace and comfort is a very important appointment, due in 4 hours. Knowing how easily you can ...

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.

Radian E Media and Y Not Studios jointly present Vaayai Moodi Pesavum, a socio-political satire. Produced by Varun Manian in association with S. Sashikanth and written and directed by Balaji Mohan, ...