About the book: 2007 / The book uses practical examples to tell how to design, debug and manufacture modern electronic devices at home. The theoretical foundations, physical principles of operation of electronic circuits and various types of radio-electronic components are illustrated with practical examples in the form of complete amateur radio designs and are supplemented with advice on the technology of manufacturing amateur equipment. The theoretical foundations of digital technology are presented at an accessible level - mathematical logic and various number systems. The second part of the book is entirely devoted to programming microcontrollers as the basis of modern electronics. Particular attention is paid to the exchange of data from microelectronic devices with a personal computer; examples of programs in Delphi are provided. For a wide range of radio amateurs