lvgl_test_ui's Introduction

LVGL Basic Sample

Overview

This sample application displays "Hello World" in the center of the screen and a counter at the bottom which increments every second. If an input driver is supported, such as the touch panel controller on mimxrt10{50,60,64}_evk boards, "Hello World" is enclosed in a button that changes to the toggled state when touched.

Requirements

Display shield and a board which provides a configuration for Arduino connectors, for example:

:ref:`adafruit_2_8_tft_touch_v2` and :ref:`nrf52840dk_nrf52840`
:ref:`buydisplay_2_8_tft_touch_arduino` and :ref:`nrf52840dk_nrf52840`
:ref:`ssd1306_128_shield` and :ref:`frdm_k64f`

or a board with an integrated display:

:ref:`esp_wrover_kit`

or a simulated display environment in a native Posix application:

:ref:`native_posix`
SDL2 [1]

:ref:`mimxrt1050_evk`
RK043FN02H-CT [2]

:ref:`mimxrt1060_evk`
RK043FN02H-CT [2]

Building and Running

Example building for :ref:`nrf52840dk_nrf52840`:

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/display/lvgl
   :board: nrf52840dk_nrf52840
   :shield: adafruit_2_8_tft_touch_v2
   :goals: build flash

Example building for :ref:`native_posix`:

.. zephyr-app-commands::
   :zephyr-app: samples/subsys/display/lvgl
   :board: native_posix
   :goals: build run

Alternatively, if building from a 64-bit host machine, the previous target board argument may also be replaced by native_posix_64.

References

[1]	https://www.libsdl.org

[2]	(1, 2) https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/i.mx-applications-processors/i.mx-rt-series/4.3-lcd-panel:RK043FN02H-CT

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