emWin

emWin simplifies the process of creating visually appealing and user-friendly interfaces, reducing development time and effort. It provides an easy-to-use and powerful API as well as functions for tasks such as drawing shapes, rendering images, handling touch inputs, managing display buffers, and interfacing with display hardware. emWin is a crucial element for embedded projects that require GUIs, data visualization, or any form of visual feedback.

emWin can be adapted to any application, from battery-powered single-chip products with basic graphical requirements, to high-end embedded systems requiring extreme levels of performance and sophisticated animations. A state-of-the-art GUI solution in the embedded industry, emWin is used in a variety of areas, including industrial control systems, applications within the Internet of Things, networking, consumer electronics, safety-critical devices, automotive systems, medical devices, and avionics systems.

"I've been using emWin for a few days and am excited by how fast the library is, how well it works, and how easy it is to integrate. Fantastic."
// Thomas Karer, ARRI Cine & Video Geräte, Vienna, Austria

"I have used emWin for a week now and am thrilled. This is a very good software package! Thanks to the good documentation and the many practical examples, it is easy to get started. I think we made a very good choice."
// Dipl.-Ing.(FH) Martin Zeh, Erhardt + Leimer GmbH, Stadtbergen, Germany

emWin provides a comprehensive API as well as a range of tools for creating visually appealing and interactive interfaces. It supports real-time updates, custom graphics, and touch inputs, and the graphics library is compatible with multiple platforms—enabling it to run on a variety of operating systems and hardware architectures.

emWin is compatible with single- and multi-task environments, and it supports many IDEs, popular toolchains, and proprietary operating systems (e.g., SEGGER's embOS RTOS). Developers can use emWin's what-you-see-is-what-you-get tools (such as the AppWizard) to design GUIs without doing any coding, and they can create custom widgets via callbacks or the owner-draw function.

emWin is compatible with capacitive touch systems, and it automatically manages data transfer and processing (typically x and y coordinates and an identifier from a touch contoller). Additionally, emWin offers the option to calibrate a touch controller. Due to its modular design, emWin is highly versatile and can be integrated into a wide range of applications.

SEGGER offers the option to license emWin for redistribution to company customers on a company's own terms. A free commercial license may be used to develop applications for certain devices from a silicon vendor, meaning emWin is pre-licensed for their microcontroller families. Free licenses are easy to activate through the license-request dialog.

Generally speaking, to get started, users need emWin's core C files, the display driver, font files, and any optional modules ordered. For some CPUs, example projects are also available to make things easier. For tutorials with detailed information, please visit the SEGGER Knowledge Base and/or consult the online documentation.