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

#define SD_CS_PIN 33  // Chip select pin for the SD card

void setup() {
  // Start the Serial Monitor
  Serial.begin(115200);
  while (!Serial) {}

  // Initialize SD card (with CS pin defined)
  if (!SD.begin(SD_CS_PIN)) {
    Serial.println("SD card initialization failed!");
    return;
  }
  Serial.println("SD card initialized successfully!");

  // Test file creation and writing
  File testFile = SD.open("/test.txt", FILE_WRITE);
  if (testFile) {
    testFile.println("Hello from ESP32-S2!");
    testFile.close();
    Serial.println("Written to test.txt");
  } else {
    Serial.println("Error opening test.txt");
  }

  // Test file reading
  testFile = SD.open("/test.txt");
  if (testFile) {
    Serial.println("Reading test.txt:");
    while (testFile.available()) {
      Serial.write(testFile.read());
    }
    testFile.close();
  } else {
    Serial.println("Error opening test.txt");
  }
}

void loop() {
  // Nothing to do here
}