ESP-IDF

ESP-IDF LCD APIs Depend on the Selected SoC Target

An ESP-IDF project can include esp_lcd_panel_io.h successfully and still fail on esp_lcd_i80_bus_config_t or esp_lcd_new_i80_bus(). That combination looks contradictory until the build target is taken into account. esp_lcd is a framework, not a promise that every ESP chip exposes every LCD transport. The selected SoC determines which low-level interfaces are compiled into the project. Panel-controller support, such as ILI9341, is another layer again. That distinction matters when moving code between ESP32 variants.