#include <SD.h>
#define CS_PIN 10
File root;

void setup() {
  Serial.begin(115200);

  Serial.print("Initializing SD card... ");

  if (!SD.begin(CS_PIN)) {
    Serial.println("Card initialization failed!");
    while (true);
  }
  Serial.println("initialization done.");

  // Example of writing file from the card:
  File myFile = SD.open("Peppe8o.txt", FILE_WRITE);
  myFile.println("Hello, SD Card!");
  myFile.println("Card is opened by Peppe80");
  myFile.close();


  // Example of reading file from the card:
  myFile = SD.open("Peppe8o.txt");
  if (myFile) {
    Serial.print("Peppe8o.txt: ");
    while (myFile.available()) {
      Serial.write(myFile.read());
    }
    myFile.close();
  } else {
    Serial.println("error opening Peppe8o.txt!");
  }
}

void loop() {
  // nothing happens after setup finishes.
}