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 ...
Liliputing

This Raspberry Pi 5 add-on gives you four more Ethernet ports

While the FPC connector on the Raspberry Pi 5 makes it possible to add hardware like PCIe NVMe adapters, a whole bunch of USB ...

How to Block Ads on Every Device, Anywhere, with Pi Zero 2 W, Pi-Hole, and Tailscale

Filter ads across devices with Pi-hole and Tailscale on a Pi Zero 2 W, using a static IP and router DNS for smoother browsing ...
CNX Software

Open-source hardware USB to GPIB adapter connects legacy GPIB/IEEE-488 instruments to modern hosts

XyphroLabs's UsbGpib is an open-source hardware, inexpensive, and portable USB to GPIB adapter aiming to provide "access to ...
CNBC

Best 4% interest savings accounts of January 2026

Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.