mirrors/lvgl
0
0
Fork 0
mirror of https://github.com/lvgl/lvgl.git synced 2024-11-23 17:53:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

docs(arduino): add note to not use lv_examles library

Browse Source
This commit is contained in:
Gabor Kiss-Vamosi 2023-03-14 07:38:03 +01:00
parent 9a870b34a9
commit 2f294aa76c
2 changed files with 17 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
docs/get-started/platforms/arduino.md
View File

@ -52,9 +52,14 @@ In the INO file you can see how to register a display and a touchpad for LVGL an
Note that, there is no dedicated INO file for every example. Instead, you can load an example by calling an `lv_example_...` function. For example `lv_example_btn_1()`.
**IMPORTANT**
**IMPORTANT NOTE 1**
Due to some the limitations of Arduino's build system you need to copy `lvgl/examples` to `lvgl/src/examples`. Similarly for the demos `lvgl/demos` to `lvgl/src/demos`.
**IMPORTANT NOTE 2**
Note that the `lv_examples` library is for LVGL v7 and you shouldn't install it for this version (since LVGL v8)
as the examples and demos are now part of the main LVGL library.
## Debugging and logging
LVGL can display debug information in case of trouble.

21
examples/arduino/LVGL_Arduino/LVGL_Arduino.ino
View File

@ -1,12 +1,13 @@
/*Using LVGL with Arduino requires some extra steps:
*Be sure to read the docs here: https://docs.lvgl.io/master/get-started/platforms/arduino.html */
#include <lvgl.h>
#include <TFT_eSPI.h>
/*If you want to use the LVGL examples,
make sure to install the lv_examples Arduino library
and uncomment the following line.
#include <lv_examples.h>
*/
#include <lv_demo.h>
/*To use the built-in examples and demos of LVGL uncomment the includes below respectively.
*You also need to copy `lvgl/examples` to `lvgl/src/examples`. Similarly for the demos `lvgl/demos` to `lvgl/src/demos`.
Note that the `lv_examples` library is for LVGL v7 and you shouldn't install it for this version (since LVGL v8)
as the examples and demos are now part of the main LVGL library. */
/*Change to your screen resolution*/
static const uint16_t screenWidth = 480;
@ -27,7 +28,7 @@ void my_print(const char * buf)
#endif
/* Display flushing */
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
void my_disp_flush( lv_disp_t *disp, const lv_area_t *area, lv_color_t *color_p )
{
uint32_t w = ( area->x2 - area->x1 + 1 );
uint32_t h = ( area->y2 - area->y1 + 1 );
@ -41,7 +42,7 @@ void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *colo
}
/*Read the touchpad*/
void my_touchpad_read( lv_indev_drv_t * indev_driver, lv_indev_data_t * data )
void my_touchpad_read( lv_indev_t * indev_driver, lv_indev_data_t * data )
{
uint16_t touchX, touchY;
@ -95,7 +96,7 @@ void setup()
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * 10 );
/*Initialize the display*/
static lv_disp_drv_t disp_drv;
static lv_disp_t disp_drv;
lv_disp_drv_init( &disp_drv );
/*Change the following line to your display resolution*/
disp_drv.hor_res = screenWidth;
@ -105,7 +106,7 @@ void setup()
lv_disp_drv_register( &disp_drv );
/*Initialize the (dummy) input device driver*/
static lv_indev_drv_t indev_drv;
static lv_indev_t indev_drv;
lv_indev_drv_init( &indev_drv );
indev_drv.type = LV_INDEV_TYPE_POINTER;
indev_drv.read_cb = my_touchpad_read;