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 ...

A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...

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 ...

IKEA's 21 new smart IoT devices support Matter, HomeKit, Google, and Alexa, so you can build a low-cost setup with quick pairing and simple controls.

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 ...

Technology promises comfort and control, and few trends embody that better than the modern smart home. A single smart plug ...

Microcontrollers for Kids shows a classroom-tested path from Scratch to Open Roberta to Arduino UNO, with printable coding ...

The sensor lineup includes smart plugs, air quality monitors, and motion detectors, and automatically connects to Sidewalk without a hub or Wi-Fi. I’m PCMag’s senior writer covering smart home and ...

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TCL made a bold move for CES 2026. Instead of focusing mainly on RGB LEDs like its competitors, it instead went all in on its new X11L SQD-Mini LED TV, which uses blue LEDs like the mini-LED TVs we’re ...