Hello. I couldn’t get any result, even with your kind explanation. Now I found this program:
In the library spi.h there are these instructions:
#define SCK_PIN 13
#define MISO_PIN 12
#define MOSI_PIN 11
#define SS_PIN 10
Do you think I can modify them to match the pins connected to the sd card? Or SCK, MISO, MOSI, SS are fixed and I can’t change them?