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Questions tagged [lvgl]

19 questions
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I am learning to make QRCode in esp32-2432s028

I am learning to make QRCode in esp32-2432s028 (this pictura) from https://www.youtube.com/watch?v=Ss3zBO-V9kI I have problem. From code /* QR Code Maker (ESP32+LVGL8) For More Information: https://youtu.be/Ss3zBO-V9kI Created by Eric N.…
Supakee Jongwisetkul
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How to implement interrupt (or task) inside While Loop in *.CPP file without void loop()

I have this code running in STM32F469 DISCO KIT: https://github.com/neuberfran/discovery7/blob/main/applications/lvgl/demo/ui/ui_events.cpp The lib SmartDrive Makes the motor run for 5 seconds (by default). When I want to stop the motor before that…
neuberfran
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In VisualGDB using the managed component LVGL, I cannot make unless my computer is connected to the internet

In VisualGDB using the managed component LVGL, I cannot make unless my computer is connected to the internet. I do not want any of my code to change based on outside dependencies, so my code must be able to compile completely offline. If the…
Doug Sisco
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Creating widget on a display with LVGL v7

I have been having problems getting LVGL to work with my display ILI9341 on ESP-IDF. For the past two days, I had been struggling with even making the code to compile without error, and I had to go back to version 7.11.0 and at last made it to…
Georgey
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Why esp32 cannot sync lcd while playing audio?

I have an sc01 plus devboard by panlee which comes with esp32-s3 16mb flash 2mb psramm an ips touch screen, a built-in 2w amplifier, wifi and bluetooth. My problem is audioi2s library cannot work with that display. When I call setPinput() in the…
Johny34
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How to set the scroll direction for RTL languages like arabic, persian etc in lvgl 7.11?

We have set the auto bidirectional flag for RTL language. how the scroll should be for RTL language. flag LV_LABEL_LONG_SROLL_CIRC is working fine for LTR language like english etc. I tried RTL language to display using scroll_circ…
Sirisha
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LVGL retrieving the color of the image based on the coordinates in C language

I am working on a project based on ESP32-S3 microcontroller. I have a touch ST7789 display wired to the microcontroller and I use LVGL library to display an color palette image. LVGL version used : 8.3.6 Ideally, I would like to be able to determine…
TheBestPlayer
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`region 'RAM' overflowed` error when using lvgl for a Zephyr project

I am getting region 'RAM' overflowed errors when building a Zephyr project using lvgl 8.3 using nRF Connect for VS Code add-in. I see a lot of references to lvgl when building, such as: [352/429] Building C object…
lcj
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esp_timer not found while build LVGL for ESP32

Trying to build LVGL port to ESP32 demo project and flash to WT32-SC01 PLUS With 3.5 inch 320X480 module with ESP32-S3-WROVER chip. I'm using ESP-IDF V5. idf.py set-target esp32s3 idf.py build Got several…
vico
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lvgl 8 on ESP32-S3 stucks in reboot loop

I try to use the current version of lvgl and lvgl_esp32_drivers on a custom ESP32-S3 board with esp-idf v5.0.1 with the following application: static void guiTask(void* p_Args) { static lv_disp_draw_buf_t draw_buf; static lv_color_t buf[480…
Kampi
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GDB debugging error while using a third-party lib LVGL on STM32

I am using a third-party graphic lib names LVGL on stm32,but i met a problem while debugging and it can run with no errors and download into the board successfully.I debug the problem by visualGDB on Visual Studio Community 2022.The problem appeals…
Arison Lee
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Makefile and lvgl

My program was generated by stm32CubeMX and i work in vscode. I have a problem with implementation of lvgl in my makefile. Regarding to the documentation i should add these things to the makefile what i did enter image description here .I have lvgl…
TKaras
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Can I make the LVGL chart display floating point values?

I'm trying to follow the widgets_demo example from lvgl demos. All is well besides the fact that chart seems to only display integer values. Is there a tweak somewhere which allows me to display floating point values or should I just multiply the…
user21537739
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esp32 component can not identify include of main esp-idf library in vscode

I am trying to ad lvgl library in esp32 project. I have done what first parts of the guide said about git cloning of 2 repos for lvgl and esp32_drivers. These are now under my /component directory. Lvgl is set to 1 in conf and also i have unchecked…
kyrpav
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Cannot get image in display ILI9341 LVGL v8.3, ESP32

I am trying to display an image on an ILI9341 display using the LittlevGL library and an ESP32 board. I have connected the display and XPT2046 touch screen according to the pinout specified in my code, and I have correctly configured the display and…
Cristóbal Felipe Fica Urzúa
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