Comparison of Qt for MCUs and LVGL Frameworks

This technical report compares two frameworks, Qt for MCUs and LVGL, used in the embedded GUI market. Qt for MCUs is identified as a commercial full-stack GUI framework that integrates design, development, and testing tools, while LVGL is an open-source C graphics library focused on lightweight performance. The report outlines an independent study where both frameworks were utilized to create a washing machine GUI on two different MCU platforms. The findings indicate that Qt for MCUs can reduce development time by approximately 30% due to its integrated tooling, which enhances collaboration between designers and developers. The performance results vary based on configuration and platform, with Qt for MCUs demonstrating superior frame rates and lower RAM usage on one platform, while both frameworks achieved similar performance on another. The report concludes by noting the strengths and weaknesses of each framework, emphasizing that the choice between them should depend on specific project requirements.