Something old and something new.

For years, there was a lonely Raspberry Pi 3 gathering dust on my desk, right next to a cup of pens and a stack of Post-Its. Occasionally I’d pick it up and absent-mindedly twirl it around, as if it ...

Thanks to the Raspberry Pi, we have easy access to extremely inexpensive machines running Linux that have all kinds of GPIO as well as various networking protocols. And as the platform has improved ...