#include <SdFat.h>


SdFs sd;
File myfile;

const char name[] = "test.txt";
uint8_t num = 0;
char text[50];

#define SD_CS_PIN SS

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S3!");
  if (!sd.begin(SD_CS_PIN)) {
    Serial.println("initialization failed!");
    return;
  }
  Serial.println("initialization done!");
  while(!Serial.available())
  {
    delay(100);
    num = Serial.available();
  }
  Serial.readBytes(text,num);
  myfile = sd.open(name,FILE_WRITE);
  if(myfile)
  {
    myfile.println(text);
    myfile.close();
  }
  else
  {
    Serial.println("file open failed!");
  }
  myfile = sd.open(name);
  if(myfile)
  {
    Serial.print("SD File:");
    while (myfile.available()) {
      Serial.write(myfile.read());
    }
    myfile.close();
  }
  else
  {
    Serial.println("file open failed!");
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}