The primary aim of this book is to offer a platform for automating agricultural fields using various sensors and transmitting the data to the cloud through the Internet of Things (IoT). This book provides a comprehensive introduction to programming and interfacing devices with IoT modems and offers a step-by-step guide to understanding the fundamental concepts of IoT and its application in the agricultural sector. It serves as a valuable reference for postgraduate and undergraduate engineering students, particularly those pursuing studies in Electronics, Electrical, Mechatronics, Robotics, Mechanical, and Computer Science. The unique selling point of this book is the inclusion of programming-based real-time project prototypes, which are based on the practical experience of the authors while working on projects with students and industries.