Costing a mere $4, the Raspberry Pi Pico was launched in 2021 using the in-house RP2040 chip. Unlike most other Raspberry Pi models, the Pi Pico isn't a microcomputer, as it is classified instead as a ...

The problem with air quality is that you can’t really tell how good or bad it is just by looking…unless it’s really bad, that is. It’s usually more helpful to have some kind of sensor that can tell ...