Creating A Lot Of Files On An SD Card With An Arduino. Code Complies ...

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carlynorama/generateFilesOnSDcard.ino Last active November 2, 2022 13:33 Show Gist options

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Learn more about clone URLs Clone this repository at <script src="https://gist.github.com/carlynorama/9300525.js"></script> Save carlynorama/9300525 to your computer and use it in GitHub Desktop. Download ZIP Creating a lot of files on an SD Card with an Arduino. Code complies. Keeping it as a reminder of how to work with String to char array conversion Raw generateFilesOnSDcard.ino This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters Show hidden characters

void generateFiles() {

//derived from code found at http://forum.arduino.cc/index.php?topic=57460.0

String fileName = String();

String message = String();

unsigned int filenumber = 1;

while(!filenumber==0) {

fileName = "file_";

fileName += filenumber;

fileName += ".txt";

message = fileName;

char charFileName[fileName.length() + 1];

fileName.toCharArray(charFileName, sizeof(charFileName));

if (SD.exists(charFileName)) {

message += " exists.";

filenumber++;

}

else {

File dataFile = SD.open(charFileName, FILE_WRITE);

message += " created.";

dataFile.close();

filenumber = 0;

}

Serial.println(message);

}

}

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