How to build your own air quality meter with a Raspberry Pi and CO2 sensor

In winter, it’s important to ventilate living and working spaces regularly. Here’s how to make a homemade measuring station ...
EurekAlert!

Low-cost visible light communication system achieves stable outdoor data transmission using LEDs

Researchers have developed a low-cost visible light communication (VLC) system using commercially available hardware that ...
XDA Developers on MSN

This awesome live map of the Washington Metro makes for a cool Raspberry Pi project

Framed Washington Metro map uses Raspberry Pi Pico W and WMATA departure API to light 144 LEDs live. Laser-cut matboard masks 144 LEDs; data refreshes so you can see every train's position from home.
The Berkshire Eagle

Lenox installs state-supplied air quality sensors to track pollution

The air quality monitors, made by PurpleAir, only require an electrical power outlets and access to wifi, said Land Use ...