The book is intended for initial study of the Raspberry PI - a single-board computer the size of a bank card. Thanks to simple step-by-step instructions, the young reader will be able to turn his "raspberry" into a real media center, a car simulator (using the Scratch language), and in the heart of a smart home (programming in Python and connecting different sensors). And at the end, a real site will be created and tested on a smartphone. The publication is recommended for middle and high school students who want to learn the capabilities of the Raspberry PI and learn how to program on it.