Johan Oosthuysen asked 8 months ago
Hi there, using the “Testing the touchscreen” as an example for the issue. The code is working as I am seeing the X, Y and pressure values on the serial monitor but the screen remains white with no label/text being updated there. The same happened for the “Hello World!” example. What would you recommend? Thanks
Rui Santos Staff answered 8 months ago
Hello Johan,
Which eBook version are you using?
We’ve just released yesterday the updated version of the LVGL eBook (version 1.3).
If you are logged in, you can download the latest version at: https://rntlab.com/module-1/esp32-lvgl-ebook/
This new version works with LVGL library version 9.2 and with ESP32 Arduino Core 3.0.4. You must be using those versions.
Johan Oosthuysen answered 8 months ago
All sorted.
There was 1 incorrect pin connection.. 🙁
I had to use the lvgl 9.1.0 library though. Otherwise I got a compile errror.
Rui Santos Staff answered 8 months ago
Which error did you encounter with LVGL 9.2? Can you tell me the full error message?
Which ESP32 Arduino Core version are you using?
Johan Oosthuysen answered 8 months ago
This is the error message I get when using the lvgl 9.2.0 and I move the demo and examples folder to src. I don’t get this error using 9.2.0 if I don’t move demos and examples and keep them in the original folder.
d:\Arduino\libraries\lvgl\src\examples\styles\lv_example_style_14.c:1:10: fatal error: ../../src/themes/lv_theme_private.h: No such file or directory
1 | #include “../../src/themes/lv_theme_private.h”
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
exit status 1
Compilation error: exit status 1
Rui Santos Staff answered 8 months ago
Hello Johan! We had to release yet another update (sorry about that). There’s currently an issue with some demos/examples.
You can download eBook version 1.4:
While installing LVGL do NOT move the examples/demos folders inside the src folder. This will solve that error messsage.