LVGL demos
Overview
A sample showcasing upstream LVGL demos.
- Music
The music player demo shows what kind of modern, smartphone-like user interfaces can be created on LVGL.
- Benchmark
The benchmark demo tests the performance in various cases. For example rectangle, border, shadow, text, image blending, image transformation, blending modes, etc.
- Stress
A stress test for LVGL. It contains a lot of object creation, deletion, animations, styles usage, and so on. It can be used if there is any memory corruption during heavy usage or any memory leaks.
- Widgets
Shows how the widgets look like out of the box using the built-in material theme.
More details can be found in LVGL demos Readme [1].
Requirements
A board with display, ideally with 480x272 resolution or higher.
A pointer input device: touchpad, mouse, or touch screen capable display, compatible with
zephyr,lvgl-pointer-input.
Note that other input devices types are not demonstrated in these demos, namely keyboards, keypads (zephyr,lvgl-keypad-input), rotary encoders (zephyr,lvgl-encoder-input) and hardware buttons (zephyr,lvgl-button-input).
Building and Running
Example building for MIMXRT1060-EVK:
# From the root of the zephyr repository
west build -b mimxrt1060_evk samples/modules/lvgl/demos
west flash
These demos can be built for simulated display environment as follows:
west build -b native_sim samples/modules/lvgl/demos -- -DCONFIG_LV_Z_DEMO_MUSIC=y
west build -t run
west build -b native_sim samples/modules/lvgl/demos -- -DCONFIG_LV_Z_DEMO_BENCHMARK=y
west build -t run
west build -b native_sim samples/modules/lvgl/demos -- -DCONFIG_LV_Z_DEMO_STRESS=y
west build -t run
west build -b native_sim samples/modules/lvgl/demos -- -DCONFIG_LV_Z_DEMO_WIDGETS=y
west build -t run
Alternatively, if building from a 64-bit host machine, the previous target
board argument may also be replaced by native_sim/native/64.