Initializing sd card failed

Projects Programming
1

I checked all my wiring and code and everything is fine but when I run my code i get the message tha initialization of my SD card failed
Can someone help me?
This is my code:

 #include <MFRC522.h> // for the RFID
#include <SPI.h> // for the RFID and SD card module
#include <SD.h> // for the SD card
#include <RTClib.h> // for the RTC

// define pins for RFID
#define CS_RFID 10
#define RST_RFID 9
// define select pin for SD card module
#define CS_SD 4 

// Create a file to store the data
File myFile;

// Instance of the class for RFID
MFRC522 rfid(CS_RFID, RST_RFID); 

// Variable to hold the tag's UID
String uidString;

// Instance of the class for RTC
RTC_DS1307 rtc;

// Define check in time
const int checkInHour = 15;
const int checkInMinute = 45;

//Variable to hold user check in
int userCheckInHour;
int userCheckInMinute;

// Pins for LEDs and buzzer
const int redLED = 6;
const int greenLED = 7;
const int buzzer = 5;

void setup() {
  
  // Set LEDs and buzzer as outputs
  pinMode(redLED, OUTPUT);  
  pinMode(greenLED, OUTPUT);
  pinMode(buzzer, OUTPUT);
  
  // Init Serial port
  Serial.begin(9600);
  while(!Serial); // for Leonardo/Micro/Zero
  
  // Init SPI bus
  SPI.begin(); 
  // Init MFRC522 
  rfid.PCD_Init(); 

  // Setup for the SD card
  Serial.print("Initializing SD card...");
  if(!SD.begin(CS_SD)) {
    Serial.println("initialization failed!");
    return;
  }
  Serial.println("initialization done.");

  // Setup for the RTC  
  if(!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while(1);
  }
  else {
    // following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
  if(!rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
  }
}

void loop() {
  //look for new cards
  if(rfid.PICC_IsNewCardPresent()) {
    readRFID();
    logCard();
    verifyCheckIn();
  }
  delay(10);
}

void readRFID() {
  rfid.PICC_ReadCardSerial();
  Serial.print("Tag UID: ");
  uidString = String(rfid.uid.uidByte[0]) + " " + String(rfid.uid.uidByte[1]) + " " + 
    String(rfid.uid.uidByte[2]) + " " + String(rfid.uid.uidByte[3]);
  Serial.println(uidString);
 
  // Sound the buzzer when a card is read
  tone(buzzer, 2000); 
  delay(100);        
  noTone(buzzer);
  
  delay(100);
}

void logCard() {
  // Enables SD card chip select pin
  digitalWrite(CS_SD,LOW);
  
  // Open file
  myFile=SD.open("DATA.txt", FILE_WRITE);

  // If the file opened ok, write to it
  if (myFile) {
    Serial.println("File opened ok");
    myFile.print(uidString);
    myFile.print(", ");   
    
    // Save time on SD card
    DateTime now = rtc.now();
    myFile.print(now.year(), DEC);
    myFile.print('/');
    myFile.print(now.month(), DEC);
    myFile.print('/');
    myFile.print(now.day(), DEC);
    myFile.print(',');
    myFile.print(now.hour(), DEC);
    myFile.print(':');
    myFile.println(now.minute(), DEC);
    
    // Print time on Serial monitor
    Serial.print(now.year(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.day(), DEC);
    Serial.print(' ');
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.println(now.minute(), DEC);
    Serial.println("sucessfully written on SD card");
    myFile.close();

    // Save check in time;
    userCheckInHour = now.hour();
    userCheckInMinute = now.minute();
  }
  else {
    Serial.println("error opening data.txt");  
  }
  // Disables SD card chip select pin  
  digitalWrite(CS_SD,HIGH);
}

void verifyCheckIn(){
  if((userCheckInHour < checkInHour)||((userCheckInHour==checkInHour) && (userCheckInMinute <= checkInMinute))){
    digitalWrite(greenLED, HIGH);
    delay(2000);
    digitalWrite(greenLED,LOW);
    Serial.println("You're welcome!");
  }
  else{
    digitalWrite(redLED, HIGH);
    delay(2000);
    digitalWrite(redLED,LOW);
    Serial.println("You are late...");
  }
}
2

Give me a diagram of the hardware

3

You have two SPI devices connected. In the past the venerable SD card from eBay and an issue in that it would not tri-state the MISO line. The makes the SD card MISO line not responsive.

To verify, remove the MRFC522 and see if the SD works.

For every device I've used, I make a Device Proveout Code program. This is the one I used to verify the function of my SD card.

*
  SD card read/write
  Mod 01 make file name a string and iterate until we find a unused file name.
  Mod 02 add capability to increment filename.
  Rev 03 tested successfully on Arduino M0

  SD card attached to SPI bus on ICSP Header.
  SD Board power = 5V (for large board with EEPROM)

  based on code created: Nov 2010 by David A. Mellis, 9 Apr 2012 by Tom Igoe
  This code is in the public domain.

driver has a 512 byte buffer then write to SD

Closing the file forces any buffered data to be written to the SD and also updates
the file's directory entry.

If you don't close the file, you will lose all data written the file since it was opened,
not just the last buffer, since the directory entry will not be updated.
*/

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

// *** SD Card declarations **************************************************
// ***************************************************************************

#define SDCARD_CS_PIN 4

uint8_t fileNumb = 100;
char dataFile[8];
bool SD_Error = false;

File myFile;			// create instance of a "File" class

void setup() {
  SerialUSB.begin(115200);
  delay (2000);
// Initializing SD card....
  if (!SD.begin(SDCARD_CS_PIN))
    {SerialUSB.print("initialization failed");
     SD_Error = true;
    }

// loop until we find a file that doesn't already exist.......
  do
    {
     itoa(fileNumb, dataFile, 10);  // (value, Array, base)
     const char *extension = ".csv";
     strcat(dataFile, extension);  // syntax  strcat(dest, source)
     ++fileNumb;
    } while (SD.exists(dataFile));


SerialUSB.print("READY TO OPEN FILE FOR WRITING   = ");
SerialUSB.println(dataFile);
  myFile = SD.open(dataFile, FILE_WRITE);   // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
SerialUSB.println(myFile);
  // if the file opened okay, write to it:
  if (myFile) {
    myFile.println("data from boiler");     // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
    SerialUSB.println("data from boiler");
    //SerialUSB.print(" data written to file:   ");
    myFile.close();                         // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
 SerialUSB.println(dataFile);
    }
  else {
    // if the file didn't open, print an error:
    SD_Error = true;
    }
  SerialUSB.print("SD_Error = ");
  SerialUSB.print(SD_Error);
}
void loop() {
  // nothing happens after setup
}
4

Before trying to debug your own code, make sure that one or more of the examples in the SD library runs as expected. The SD card itself could be a problem, as well as the hardware.

5

Screenshot_20230531_215754_Chrome
Screenshot_20230531_215754_Chrome1080×2400 163 KB

6

Alright I will go over this and see if there's a problem but if there isn't I'll go run the code in Arduino Create

7

According to the schematic you have crossed pins 4 and 10.

CS_RFID = 10 not 4
CS_SD = 4 not 10

8

Name all the modules that you use

9

I used a RTC DS1307 module, a SD card module and a MFRC522 RFID Reader.

10

He's right you did cross will that fix it in the schematic form??

11

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