ESP32 Forum

Since lvgl 9.1.0 is now natively supported as a component in the ESP32 registry, I have added it using the suggested method: And I'm using the following to configure/build the project: So far so good, project compiles without any problems. However, as soon as I try to add components to lvgl, like LCD/Touch, problems arise and the build fails with bunch of errors, missing headers, etc..

I tried to manually add the following: https://github.com/lvgl/lvgl_esp32_drivers

I was able to see all of its options added in the menuconfig, however, I wasn't able to compile the project. The build failed also with bunch of missing dependencies like LEDC.

I was wondering if there's any suggested roadmap when working with latest lvgl + esp-idf.

I've found that the esp_lvgl_port component makes things much easier with regards "linking" the physical devices (in my case I2C touch and SPI lcd display) to the lvgl 9.1.0 graphics component.
If you've done work with the lvgl V8+ component(s) be warned: a lot of the code will require re-working due to major breaking changes in the API and widgets available from the fundamental device types - lv_display_t* & lv_indev_t* - to things like the lv_meter being replaced by the lv_scale (which doesn't quite work in the same way).

I have to say that the changes are worth it (and I think the next point release should bring it up to a par with the current 8 version, polished wise) even if I'm having to learn a new way of doing something I only just learned a few months back. But then I'm a hobiest so I can afford to live on the bleeding edge all the time. If I was doing this as a day job I would stick with the 8 versions; especially as they are still getting full support and enhancements.

In fact, I'm coming from another architecture/framework, and I didn't use lvgl before, so I presume I have no problem to start from scratch with any API version. However, it seems lvgl API has witnessed a lot of major changes that makes portability across them really painful. 7.9, or 8.0, or 9.1.0.

Regarding esp_lvgl_port, you're right. IT would've been probably the best and easiest approach, but as far as I remember, I had issues compiling it. I don't know, I think I did a bunch of changes to the esp-idf itself and to the environment (Linux Ubuntu 20.04)

If esp_lvgl_port is the way to go, do you recommend any specific esp-idf version? Can I compile and build project with the latest esp-idf?