PCWorld explains how to create an affordable CO2 air quality monitor using a Raspberry Pi and MH-Z19C sensor for under $40. This DIY project helps monitor indoor air quality since high CO2 levels ...

Estimating π with “fake circles” using Python. This short shows how to simulate the geometry, calculate the approximation step by step, and see how accuracy improves as the model gets refined. #Python ...

Have you ever wished for an internet experience free from the constant barrage of ads and invasive trackers, no matter where you are? Picture this: you’re working from a bustling café or streaming ...

What if you could build an AI chatbot that’s not only blazing fast but also works entirely offline, no cloud, no internet, just pure local processing power? Below, Jdaie Lin breaks down how he ...

In the world of social media, “keeping receipts” refers to the practice of storing evidence that may come in handy for a callout post at a later date. For [Teddy Warner], though, it’s more applicable ...

When you hear "Raspberry Pi," the credit-card sized single-board computer is likely the first thing that comes to mind after ...

Jason Chun is a CNET writer covering a range of topics in tech, home, wellness, finance and streaming services. He is passionate about language and technology, and has been an avid writer/reader of ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...