ESP32 Need a lvgl 8.0.0 Arduino example

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1

Does someone know a working example for the ESP32 and ILI9341. The example in the git is crashing, in my case

2

Did you make sure that your physical SPI connections correspond to the declarations in the ili9341 driver?

3

I am using Arduino framework but it build with PlatformIO with esp32 and ILI9341.

This is what I am using : https://github.com/rvt/espgaggia

I have configured lvgl/lvgl@7.11.0 but I am prety sure that latest should work, if not do let me know and I will fix that.

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4

Thank you Check it out tomorrow

5

rtv I think espgaggia is not a lvgl project

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Here is where I create the UI:
https://github.com/rvt/espgaggia/blob/master/src/ui/gaggia_ui.c#L1

Here is how I interface with the UI:
https://github.com/rvt/espgaggia/blob/master/src/ui/gaggia_ui.h#L68
And specially this line: https://github.com/rvt/espgaggia/blob/master/src/ui/gaggia_ui.h#L72 is the interface how I handle callbacks from the UI into the main code

I did had to make my own copy of the drivers: https://github.com/rvt/espgaggia/tree/master/lib/lvgl_port_esp32#L1

because I had issues with the default driver and a lot of missing macro’s, I will check if that is fixed by now…

Or perhaps I mis-understand your question about a working example of Arduino + ESP32 + ILI9341.

7

Thank you for your fantastic work, but that is way to complex I look for a simple Arduino ESP32 Project what I 'm able to extent. Thank you anyway

8

Check this post out an simple working example maybe it helps you.

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ILI9341 should be auto detected by LovyanGFX library. Read the readme on the repo and use the below sample

Device : WT32-SC01
Display / Touch Drivers : LovyanGFX
Widgets : LVGL 8.x

ESP-IDF => WT32-SC01 + LVGL8 + LOVYANGFX

Arduino => WT32-SC01 + LVGL8 + LOVYANGFX

10

hey sorry to jump on this topic but how could I integrate the output of squareline with LovyanGFX in a code like the one you posted? I cant get TFT_eSPI to work :frowning:

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Hi @eried
What is the problem with TFT_eSPI?
Please have a look at this detailed tutorial.

This is using PlatformIO with Arduino Framework.

Some more example videos.

12

Thanks for the videos. I found a solution using: GitHub - FCam1/SC01_Plus_HMI_example: Arduino example using SquareLine Studio to make an HMI with an SC01_plus capacitive display.

The problem was basically that there was no Arduino template for SC01 Plus

Now it is great!

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Here is the simple snippet if you need to start with using LovyanGFX and WT32-SC01 Plus