#include <SPI.h>
#include <SD.h>

const int chipSelect = 10;
File dataFile;

void setup() {
  Serial.begin(9600);
  while (!Serial);

  Serial.print("\nInitializing SD card...");

  if (!SD.begin(chipSelect)) {
    Serial.println("Initialization failed. Things to check:");
    Serial.println("* Is a card inserted?");
    Serial.println("* Is your wiring correct?");
    Serial.println("* Did you change the chipSelect pin to match your shield or module?");
    while (1);
  } else {
    Serial.println("Wiring is correct and a card is present.");
  }

  dataFile = SD.open("data.txt", FILE_WRITE);
  if (!dataFile) {
    Serial.println("Error opening data file!");
  }
}

void loop() {
  // Write 5 different sayings to the file
  for (int i = 1; i <= 5; i++) {
    dataFile.print("Saying ");
    dataFile.print(i);
    dataFile.println(": Hello from SD card!");
  }

  // Flush the data to ensure it's written to the SD card
  dataFile.flush();

  Serial.println("Data written to SD card successfully!");

  // Delay before repeating the loop
  delay(5000); // Adjust the delay as needed
}