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 ...

There are a lot of ways to measure energy usage in the home, but most of them involve handling mains voltage. Not only that, but sometimes they require handling mains voltage before it gets through a ...

Electronics enthusiasts that are looking for a way to measure voltage and current may be interested in a new piece of hardware designed specifically for the Raspberry Pi, which transforms it into a ...