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 ...

Why? To run an LED on a RaspberryPi is done simply by turning a GPIO pin on and off. Often, that's just fine, but if you want more scheduling capability and features, then this driver may be what ...

We are all familiar enough by now with the succession of boards that have come from Raspberry Pi in Cambridge over the years, and when a new one comes out we’ve got a pretty good idea what to expect.

LAS VEGAS, Jan. 19, 2026 /PRNewswire/ -- Looking for a smart life solution, with just verbal communication via a 24/7 ...

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.

The live and happening Amazon Great Republic Day Sale 2026 is showing offers and unbeatable prices with some of the best PC ...

Many IoT devices run on batteries, sometimes for years. If the OS itself is a power hog, your device won’t last long. Good ...