Projects with Arduino IDE and the LVGL Graphics Library

The ESP32 is one of the most widely used microcontrollers among students, hobbyists, makers, and professional engineers. Its affordability, powerful processing capabilities, and extensive feature set make it an excellent platform for developing a wide range of embedded and IoT applications.

A recent addition to the ESP32 ecosystem is the ESP32 Cheap Yellow Display (ESP32 CYD), an all-in-one development board that combines a standard ESP32 microcontroller with a built-in 320 × 240 pixel TFT color display. The board also provides convenient access to GPIO pins, serial communication interfaces (TX/RX), power connections, and ground terminals. The integrated TFT display eliminates the need for external screens, enabling developers to create sophisticated graphical user interfaces directly on the board.

This book introduces the hardware architecture of the ESP32 CYD and explains the functionality of its onboard connectors and interfaces. Through a collection of beginner, intermediate, and practical projects, readers will learn how to develop interactive applications using the popular Arduino IDE 2.0 development environment.

The book covers both the built-in graphics capabilities of the TFT display and the powerful LVGL (Light and Versatile Graphics Library), one of the most popular open-source graphics frameworks for embedded systems. Step-by-step projects demonstrate how to implement graphical user interfaces using both approaches, helping readers build visually appealing and highly functional applications.

All projects included in the book have been fully tested and verified. Each project is accompanied by detailed explanations, block diagrams, circuit schematics, complete source code listings, and implementation guidance to ensure a smooth learning experience.

By leveraging the LVGL graphics library, readers will learn how to create professional full-color user interfaces using a wide variety of widgets, including buttons, labels, calendars, keypads, keyboards, message boxes, spinboxes, sliders, charts, tables, menus, progress bars, switches, drop-down lists, animations, and many other advanced graphical components.

Whether you are a beginner exploring embedded graphics or an experienced developer looking to build modern touchscreen applications, this book provides the knowledge and practical examples needed to master the ESP32 CYD platform and the LVGL graphics ecosystem.