Hello,
I'm using this SD card reader, this SD card (16GB - formatted to FAT32), and an Arduino Nano to read a .txt file from the SD card and print the contents to the serial monitor. My code is below.
/*
This example shows how to read data to and from an SD card file
The circuit:
SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4 (for MKRZero SD: SDCARD_SS_PIN)
*/
#include <SPI.h>
#include <SD.h>
File myFile;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(115200);
Serial.print("Initializing SD card...");
if (!SD.begin(4)) {
Serial.println("initialization failed!");
return;
}
Serial.println("initialization done.");
if (SD.exists("soundFile.txt")) {
Serial.println("soundFile.txt exists.");
} else {
Serial.println("soundFile.txt doesn't exist.");
}
// open the file
myFile = SD.open("soundFile.txt", FILE_READ);
if (myFile) {
Serial.println("soundFile.txt:");
// read from the file until there's nothing else in it:
while (myFile.available()) {
Serial.write(myFile.read());
}
// close the file:
myFile.close();
} else {
// if the file didn't open, print an error:
Serial.println("error opening soundFile.txt");
}
}
void loop() {
// nothing happens after setup
delay(2000);
}
Unfortunately, the code successfully initializes communication with the SD card, but for some reason, it throws an error when I try to open the text file to read:
Initializing SD card...initialization done.
soundFile.txt doesn't exist.
error opening soundFile.txt
All electrical connections are correct (grounds, etc) and the .txt has been successfully uploaded to the SD card (verified - including name spelling). In case anyone is interested, I have attached the .txt file I want to use.
This is my first time using an SD card, am I doing something wrong??? Any help is appreciated!
soundFile.txt (293 KB)
