Blank screen when loading Smart Gadget demo

What do you want to achieve?

Would like to see demo of Smart Gadget on my ESP32 LCD screen. What I get is a blank white screen with no graphics or text.

What have you tried so far?

I set the project settings to the following:
Board Group: Arduino
Board: Arduino with TFT_eSPI
Version: v1.1.0
LVGL: 8.3.6
Width: 320
Height: 480
I have been able to get the code to compile and upload to the ESP32 device. There are no errors in the compile or upload. Looking at the Serial Monitor I can see these messages:
Hello Arduino! V8.2.0
I am LVGL_Arduino
Setup done

I have other sketches that work fine with the TFT_eSPI library and these display the graphics/buttons as designed in those sketches. The TFT_eSPI .h files are set up with the correct pins, as evidenced by the other sketches working.

Screenshot or video


  • SquareLine Studio version: 1.3.2
  • Operating system: Windows 10
  • Target hardware: ESP32 Dev Module with 480x320 LCD screen using ILI9488 driver


Some tips:

  • Please enable the logging of LVGL as described here.
  • You can also increase LV_MEM_SIZE in lv_conf.h. Maybe it’s just an out of memory issue.
  • Does it work if you just create a singe button or dorpdown widget?