The commonly used tools for creating embedded graphical user interfaces include LVGL, Qt for MCUs, TouchGFX, and Embedded Wizard. The right choice depends on the embedded system’s processor, memory, operating system, graphics requirements, development workflow, and target application.
Simple menus and push-button screens are quickly becoming relics of the past. Today’s industrial panels, medical gear, and consumer devices demand responsive touch controls, real-time data plots, and smooth visual transitions. Selecting a GUI stack that can handle these rendering demands without lagging is a key part of embedded system design.
What Should You Consider Before Choosing An Embedded GUI Tool?
Before committing to a GUI library, audit your physical hardware constraints first. Processor clock speed, memory limits, screen resolution, touch controller priorities, and operating system overhead will quickly narrow down which tools can deliver smooth rendering without choking the CPU.
A low-power chip with minimal memory can’t run the same software as a high-end board. Budget microcontrollers need lean, bare-metal graphics libraries, whereas a Linux-driven platform gives you the processing power to run feature-rich visual engines. Other factors worth considering include:
- Available RAM and Flash
- CPU and GPU capabilities
- Display resolution
- Touchscreen requirements
- Operating system or RTOS
- Animation and multimedia needs
- Development language
- Licensing model
- Hardware compatibility
- Long-term maintenance
Making these decisions early can prevent developers from selecting a framework that becomes difficult to scale later.
Is LVGL A Popular Choice For Embedded GUIs?
LVGL is a free, open-source graphics library designed for embedded systems. It provides built-in widgets such as buttons, sliders, and charts, along with support for animations and touch input. LVGL can run with or without an operating system and does not require a GPU, making it suitable for a range of resource-constrained embedded platforms. Its hardware-independent design also allows it to work with different microcontrollers and displays.
LVGL can be a practical option when projects require:
- Open-source software
- Low memory usage
- Hardware flexibility
- Customisable interfaces
- Touch and other input support
- C-based development
Why Do Developers Use Qt For Embedded Systems?
Qt provides solutions for different embedded platforms, including Qt Quick Ultralite for microcontrollers and Qt for Embedded Linux. Qt Quick Ultralite is designed for resource-constrained MCU platforms and supports QML-based graphical user interfaces. Qt for Embedded Linux provides broader GUI capabilities for systems running embedded Linux.
Qt also supports features such as animations and multi-window interfaces, depending on the platform, graphics stack and hardware configuration. Its suitability for an embedded project depends on factors such as the target processor, available memory, operating environment, display requirements and required GUI features.
When Is TouchGFX A Good Option?
TouchGFX is particularly suited to STM32 microcontrollers and provides a graphical development environment for creating embedded GUIs. It pairs a visual designer with an optimized C++ rendering engine, allowing teams to build clean interfaces fast without manually coding every button and animation transition.
For hardware teams committed to the STM32 ecosystem, TouchGFX offers a fast, design-centric way to build GUIs without starting from scratch. Comparing TouchGFX with LVGL or Qt comes down to your target chip, required frame rates, team workflow, and overall project budget.
How Do These Tools Compare?
There is no single GUI framework that is best for every embedded product.
| Tool | Target Platforms | OS Support | Development Approach | Hardware Considerations | Best Fit |
| LVGL | MCUs and embedded processors | Bare-metal and RTOS; OS support varies | C-based | Suitable for resource-constrained platforms; GPU optional | Lightweight embedded GUIs |
| Qt for MCUs | Microcontrollers | Bare-metal and RTOS environments | QML/C++ | Designed for MCU resource constraints | QML-based MCU interfaces |
| TouchGFX | STM32 microcontrollers | Bare-metal/RTOS configurations | C++ with graphical design tools | Closely integrated with STM32 hardware | STM32-based GUI applications |
| Embedded Wizard | MCUs and embedded processors | Depends on target platform | GUI design and code generation | Platform-specific hardware integration | Embedded touch interfaces |
Stacking feature lists side-by-side won’t tell you how a framework actually runs on your physical board. An engine that works brilliantly on a multi-core chip might completely overwhelm a basic microcontroller. LVGL thrives on low-cost MCUs where RAM is precious, whereas Qt makes sense when your hardware has the CPU headroom, memory, and graphics acceleration to support a broader software ecosystem.
Why Is Hardware Selection Important For Embedded System Design?
Framework selection and hardware architecture specification are interdependent design processes. Deploying advanced graphical user interfaces requires validating that the target silicon provides sufficient GPU acceleration, memory bus bandwidth, and processing headroom to handle target display rendering pipelines.
This is why embedded system design should consider GUI requirements from the early architecture stage rather than adding them after the hardware has already been finalized. Developers should evaluate:
- Processor architecture
- RAM and Flash availability
- Display controller
- GPU capabilities
- Communication interfaces
- Storage requirements
- Power consumption
- Operating environment
Early evaluation can help teams avoid expensive hardware changes later in the product-development cycle.
Wrapping Up!
Choosing a GUI framework depends on the target hardware, memory availability, operating environment, display requirements and required features. Evaluating these factors early can help teams select a framework that fits the embedded system architecture and development requirements. Tessolve supports embedded engineering and system-level development for these requirements.
FAQs
1. What is the most popular tool for embedded GUI development?
LVGL, Qt for MCUs, TouchGFX, and Embedded Wizard are among the commonly used frameworks, with the right choice depending on hardware and project requirements.
2. Is LVGL suitable for a low-resource embedded system?
Yes. LVGL is designed for embedded system with limited resources and can operate without an OS, external memory, or GPU.
3. Why is hardware important when selecting a GUI framework?
Processor performance, RAM, Flash, display resolution, and graphics acceleration directly influence how effectively an embedded GUI can run.
4. Can one GUI framework work across different embedded platforms?
Some frameworks support multiple hardware platforms, but compatibility, performance, and available drivers should be evaluated before selecting a solution.
5. When should GUI requirements be considered in embedded system design?
GUI requirements should be considered during the early architecture stage so hardware, memory, display, and processing capabilities can be planned accordingly.
6. What is the difference between an embedded GUI framework and an embedded operating system?
An embedded GUI framework provides tools for creating graphical interfaces, while an embedded operating system manages system resources, tasks, hardware communication, and application execution.
7. Does an embedded GUI require a GPU?
No. Some embedded GUI frameworks can use software rendering, while supported platforms may use GPU acceleration for graphics processing.
8. Can embedded GUI frameworks run without an operating system?
Some frameworks support bare-metal development, while others depend on specific operating systems or platform configurations.
9. How does hardware affect embedded GUI performance?
Processor speed, available memory, display resolution, graphics acceleration, and memory bandwidth can affect GUI rendering and responsiveness.
