Raspberry Pi is a single-board computer (SBC) with a low cost and low power consumption. It can be used as a desktop, a server, or an embedded system that controls other electronics. The Pi comes in several models. Currently, the flagship is Model 3 B+, which costs about $35. Compared to other models, it offers a faster CPU, more memory, and a faster Ethernet port, so it is a good candidate for computer vision experiments that rely on either local computing resources or the cloud. However, other models are also usable for computer vision projects.
Several operating systems are available for Raspberry Pi. We will use Raspbian, which is a port of Debian Stretch (a major Linux distribution) to ARM.
Download the latest Raspbian disk image from http://downloads.raspberrypi.org/raspbian_latest. You do not need to unzip the downloaded file. At the time of writing...