SD Card Write rev_01

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    - Project: SD Card Write
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2024-09-19 09:03:35

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* write hello world in sd card */
/****** END SYSTEM REQUIREMENTS *****/

/****** DEFINITION OF LIBRARIES *****/
#include <SPI.h>
#include <SdFat.h>  //https://github.com/greiman/SdFat

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);

/***** DEFINITION OF SPI PINS *****/
const uint8_t sdcard_SDCardModule_SPI_PIN_MOSI_D23      = 23;
const uint8_t sdcard_SDCardModule_SPI_PIN_MISO_D19      = 19;
const uint8_t sdcard_SDCardModule_SPI_PIN_SCLK_D18      = 18;
const uint8_t sdcard_SDCardModule_SPI_PIN_CS_D5     = 5;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
// Create an instance of the SdFat class
SdFat sd; // This object will be used to interact with the SD card
SdFile file; // Create an instance of SdFile to handle file operations

void setup(void)
{
    // Initialize serial communication for debugging
    Serial.begin(9600);
    while (!Serial) {
        yield(); // Wait for serial port to connect
    }

    pinMode(sdcard_SDCardModule_SPI_PIN_CS_D5, OUTPUT); // Set the CS pin as output
    // Start the SPI library:
    SPI.begin(); // Initialize the SPI library

    // Initialize the SD card
    if (!sd.begin(sdcard_SDCardModule_SPI_PIN_CS_D5)) {
        Serial.println("SD card initialization failed!");
        return; // Stop if the SD card initialization failed
    }
    Serial.println("SD card initialized successfully.");

    // Open a file for writing
    if (file.open("hello.txt", FILE_WRITE)) { // Create or open the file "hello.txt"
        file.println("Hello, World!"); // Write "Hello, World!" to the file
        file.close(); // Close the file
        Serial.println("Message written to SD card.");
    } else {
        Serial.println("Failed to open file for writing.");
    }
}

void loop(void)
{
    // Stop the loop after writing to the file
    while (true); // Infinite loop to prevent repeated writes
}

/* END CODE */