PID-based Practical Digital Control with Raspberry Pi and Arduino Uno

Raspberry Pi 4 and Arduino Uno for PID-Based Control Applications

The Arduino Uno is one of the most widely used open-source microcontroller platforms, combining reliable hardware, an easy-to-use Integrated Development Environment (IDE), and an extensive collection of software libraries. Supported by a large global community of engineers, programmers, educators, researchers, and electronics enthusiasts, the Arduino ecosystem enables rapid development and testing of embedded applications. Its comprehensive library support simplifies programming tasks, reduces development time, and provides access to thoroughly tested code modules.

The Raspberry Pi 4 is a powerful single-board computer capable of supporting a wide range of applications, including multimedia systems, industrial automation, robotics, gaming, and numerous commercial and residential projects. With built-in Wi-Fi and Bluetooth connectivity, it is particularly well suited for remote monitoring, Internet-enabled control systems, and IoT applications.

This book explores the use of both the Raspberry Pi 4 and Arduino Uno in automatic control systems based on Proportional-Integral-Derivative (PID) controllers. Beginning with the fundamental principles of control engineering and feedback systems, the book gradually introduces practical PID control techniques through a series of fully tested real-world projects.

Readers will learn how to analyze open-loop step responses, tune PID parameters, and evaluate closed-loop system performance. Detailed explanations are provided for each project, including block diagrams, circuit schematics, PID control algorithms, and complete program listings for both Raspberry Pi and Arduino Uno platforms.

The projects presented throughout the book are designed to help readers understand both the theory and practical implementation of PID controllers. They can be easily adapted and expanded for a variety of other control applications. In addition, the Raspberry Pi projects described in this book are compatible with most models in the Raspberry Pi family.

Topics Covered

• Open-loop and closed-loop control systems
• Analog and digital sensors
• Transfer functions and continuous-time systems
• Time-response analysis of first-order and second-order systems
• Discrete-time digital systems
• Continuous-time PID controllers
• Discrete-time PID controllers
• ON-OFF temperature control using Raspberry Pi and Arduino Uno
• PID-based temperature control using Raspberry Pi and Arduino Uno
• PID-based DC motor speed control using Raspberry Pi and Arduino Uno
• PID-based water level control using Raspberry Pi and Arduino Uno
• PID-based LED-LDR brightness control using Raspberry Pi and Arduino Uno

Whether you are a student, engineer, researcher, or electronics enthusiast, this book provides a practical and hands-on introduction to designing, implementing, and optimizing PID control systems using Raspberry Pi and Arduino platforms.