Immerse yourself in the exciting world of digital electronics with "Digital Electronics for Beginners: Logic, Microcontrollers and Arduinos". This eBook is your ideal companion, whether you are taking your first steps in electronics or looking to consolidate and expand your knowledge. Throughout its pages, you will discover the fundamentals of digital electronics, the principles of binary logic and Boolean algebra, and you will venture into the fascinating use of microcontrollers and the Arduino platform. This volume is structured to facilitate gradual learning, starting with basic concepts and moving toward more sophisticated applications. Each chapter builds on the knowledge acquired in the previous ones, integrating theory with practical exercises and projects. To get the most out of this book, we recommend following the proposed order, performing the exercises and developing the suggested projects. Additionally, the appendices offer additional resources and a troubleshooting guide to support your learning. This book is not only an introduction to digital electronics, but also an invitation to experiment, create and explore. At the end of this day, you will not only have acquired theoretical knowledge, but you will also have applied these concepts in practical projects, from simple circuits to integrated systems with microcontrollers and Arduino. We invite you to embark on this journey of discovery and transform your curiosity into practical skills and knowledge.