This is the second edition of the most complete book about the STM32 family of 32?bit Flash microcontrollers from ST Microelectronics based on the ARM® Cortex®?M architecture. The book will guide you in a clear and practical way to this hardware platform and the official ST CubeHAL and STM32CubeIDE, showing its functionalities with a lot of examples and tutorials. The book assumes that you are totally new to this family of MCUs, and it will start showing how to setup the tool-chain to build your STM32 based applications.The book is addressed both to professionals and to fans of this platform, like hobbyists and students. The book examples are based on nine Nucleo-64 boards from ST.