This book teaches you how to build a smart home with ESP32, Arduino, FreeRTOS, and Twilio SMS messaging. You'll learn how to use these technologies to create a system that can monitor and control your home appliances and devices, and send you real-time notifications about important events. The book is divided into two parts. The first part introduces you to ESP32, Arduino, FreeRTOS, and Twilio SMS messaging. You'll learn about the features of each technology and how to use them together to create a smart home system. The second part of the book provides a series of step-by-step projects that show you how to build different components of a smart home system. By the end of this book, you'll have the knowledge and skills you need to build a complete smart home system that can monitor and control your home appliances and devices, and send you real-time notifications about important events.