I have not tested it in PlatformIO, I am using Arduino directly. please make sure you have the following libraries installed in Arduino:
1.GitHub - Seeed-Projects/SeeedStudio_lvgl: Embedded graphics library to create beautiful UIs for any MCU, MPU and display type.
2.GitHub - Seeed-Projects/SeeedStudio_TFT_eSPI: Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips
3.GitHub - Seeed-Studio/Seeed_Arduino_RoundDisplay: An Arduino graphics library based on LVGL, specifically designed for Round Display for XIAO
4.Arduino GFX version：1.4.9
Then you can use the screen’s display programme. A test programme for the display is provided here: Seeed_Arduino_RoundDisplay/examples/HardwareTest/HardwareTest.ino at main · Seeed-Studio/Seeed_Arduino_RoundDisplay · GitHub
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