LVGL
LVGL (Light and Versatile Graphics Library) is an open-source embedded graphics library for creating graphical user interfaces (GUIs) on resource-constrained embedded systems, such as microcontrollers. It provides a rich set of widgets, animations, and themes, supporting various display drivers and input devices. The library is written in C and designed to be memory-efficient and portable across different hardware platforms.
Developers should learn LVGL when building GUIs for embedded devices like IoT gadgets, wearables, or industrial control panels, as it offers a lightweight solution with minimal RAM and flash usage. It is particularly useful for projects requiring touchscreens or graphical displays on microcontrollers, such as those based on ESP32, STM32, or Raspberry Pi Pico, due to its extensive widget library and cross-platform support.