This project shows how to connect an LCD screen to an Arduino Mega 2560 and use potentiometers (knobs) to adjust the screen’s contrast and control an extra function, like brightness. Explaining the ...

#define EXAMPLE_LCD_COLOR_BITS (ESP_PANEL_LCD_COLOR_BITS_RGB888) // or `ESP_PANEL_LCD_COLOR_BITS_RGB565` #define EXAMPLE_LCD_DSI_PHY_LDO_ID (3) // -1 if not used # ...