This is a first test with getting a Waveshare ESP32-S3-LCD-4.3 Touch running with an exported template project from SquareLine Studio.
It is a very simple two-screen UI with buttons going back and forth.
- Open the project in PlatformIO
- Connect your board to USB
- Make sure to press and hold the Boot button on your board, then press the Reset button, and release the Boot button
- Click Upload
- Enjoy clicking back and forth on your touch panel :)
The libraries are the ones provided on the Waveshare Wiki: S3-4.3-libraries.zip, except for lvgl, which is added as library dependency in platformio.ini.
I tried to add the other two libraries as dependencies as well, but Waveshare made some changes:
- ESP32_IO_Expander: The CH422G chip was added. There are forks from the original ESP32 repo including the new files, but nothing official yet.
- ESP32_Display_Panel: There are also some changes in the repo, that I did not yet investigate.
The setting that worked the best for me in SquareLine Studio was Arduino with TFT_eSPI. I used Export > Create Template Project, but only copied the lib/ui folder into this project.
Check the profile in platformio.ini:
[env:esp32s3box]
platform = espressif32
board = esp32s3box
framework = arduino
monitor_speed = 115200
board_upload.flash_size = 8MB
build_flags =
-D BOARD_HAS_PSRAM
-D LV_CONF_INCLUDE_SIMPLE
-I lib
board_build.arduino.memory_type = qio_opi
board_build.f_flash = 80000000L
board_build.flash_mode = qio
lib_deps =
lvgl/lvgl@8.3.8
These are the equivalents for settings the Waveshare Wiki recommends for the Arduino IDE.
The src/main.cpp is basically a combination of the ESP32-S3-Touch-LCD-4.3_Code/Arduino/lvgl_Porting example from the Waveshare wiki, with removed demo and #include <ui.h> from the exported SquareLine Studio project.
There are some yellow artifacts when doing animations. Also, I have not yet figured out how to rotate the screen.
Feedback welcome!