Comments on: LVGL with ESP32 Cheap Yellow Display Board (ESP32-2432S028R)

By: Sara Santos

Sara Santos — Sat, 02 May 2026 17:01:07 +0000

In reply to Patrick.

Hi.
That’s so easy to apply.
Thanks for sharing.
Regards,
Sara

By: Patrick

Patrick — Fri, 01 May 2026 11:21:43 +0000

Changing the theme colors that may interest some readers. As of now this documentation can be found from LVGL, lvgl.io/docs/open/integration/frameworks/arduino.

For a simple dark or light mode, edit the lv_conf.h file in the root of the Arduino Libraries directory.

/0: Light mode; 1: Dark mode/ #define LV_THEME_DEFAULT_DARK 1

Rui and Sara, thank you so much for all your work and providing a path for new developers to gain skills.

By: Sara Santos

Sara Santos — Fri, 10 Apr 2026 13:43:07 +0000

In reply to Renzo.

Great!
I’m glad it is working as expected now.
Regards,
Sara

By: Renzo

Renzo — Thu, 09 Apr 2026 18:58:55 +0000

In reply to Renzo. Solved

By: Renzo

Renzo — Thu, 09 Apr 2026 17:14:20 +0000

I try to compile your sketch and I get this error:”SoftSPI’ does not name a type”
I bought the-2432S028R by Aliexpress, it show the basic display.
When I try to upload the examples included in XPT2046 library the reply is “The selected serial port does not exist or the card is not connected” while Arduiono show it”
Really strange.
Renzo

By: Sara Santos

Sara Santos — Sun, 05 Apr 2026 17:45:12 +0000

In reply to Dave K.

Hi.
Thank you so much for your nice words and supporting our work.
Glad everything is working as expected now.
Regards,
Sara

By: Dave K

Dave K — Sat, 04 Apr 2026 13:30:07 +0000

In reply to Dave K. Un-commenting "#define TFT_INVERSION_ON" in file TFT_eSPI > User_Setup.h fixed the color inversion. All good now! And changing it there should prevent further issues with other examples. Thanks All!

By: Dave K

Dave K — Sat, 04 Apr 2026 12:46:57 +0000

Though I’m late to the game….
I have verified that lvgl 9.5.0 works fine with my new 2USBCYD boards, and with the above config files. My colors are inverted, but I have not yet done the invert in setup, and will try that next. Also, for bench convenience, I was able to rotate the display to the 90d position so my cord is headed in the direction I want!

Thank you so much for the knowledge you share. Often I want to know way more about options then you present in the tutorials and books, but I have found no better starting point then RNT!!

This is a great tutorial, and I have learned a lot going through the begin CYD, and this one. pretty soon I’ll order the book, but I want to play around a bit more first! (sadly missed the sale last week) That’s OK though, as I like to support you guys!

Thanks so much for all your work and sharing! (also to the community!)
Dave

By: LEONARD

LEONARD — Wed, 25 Feb 2026 16:53:16 +0000

Bonjour.
Comme d’habitude votre application fonctionne à merveille et je me suis permis de rajouter plein d’objets pour l’adapter à mon application.
J’ai cherché en vain depuis plusieurs jours avant de vous embêter avec mes problèmes.
Je cherche à récupérer la valeur de la position du curseur d’un slider pour la transférer dans une variable utilisée plus Loing dans mon montage.
Je ne trouve pas la solution. Pouvez vous me donner quelques renseignements.
Cordialement, fidèle utilisateur de vos nombreuses applications ESP32.

By: Sara Santos

Sara Santos — Sun, 25 Jan 2026 15:18:34 +0000

In reply to Peter Havas.

I think you may have an issue with the installation of the libraries.

Try starting again from scratch.

Regards,
Sara