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 ...

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 ...

Bluetooth is everywhere, but it’s hard to inspect. Most of the magic is done inside a Bluetooth controller chip, accessed ...

We’ve seen a few H-bridge circuits around these parts before, and here’s another application. This time we have an Old Train ...