There's a reason why some SD cards have a tiny switch on the side. It's actually there to help protect the data onboard, but ...

The Arduino manages everything else on the system as well including all of the temperature sensors and fan motor control.

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Companion library for Adafruit_GFX to load images from SD card or SPI Flash Requires Adafruit_GFX library and one of the SPI color graphic display libraries, e.g. Adafruit_ILI9341.