Reading a file from SD within a directory

Projects Programming
1

Hi,

I´am having problems acessing the files within directories for reading.

How should i do this:

myFile = SD.open("wcfg\intro.txt", FILE_READ);

The problem is in the backslash on the middle or the need for backslash in the beginning.
Does someone know how to put this expression correctly?

Cheers

2

The backslash character in C is an escape character. If you need to use a backslash in a constant, you need to use two of them.

myFile = SD.open("wcfg\\intro.txt", FILE_READ);

This presumes that \ is actually the separator, that there is a directory named wcfg at the root level, and that the wcfg directory contains a file names intro.txt.

3

It´s not working

Tried this:

myFile = SD.open("wcfg\\intro.txt", FILE_READ);

and this:

myFile = SD.open("\\wcfg\\intro.txt", FILE_READ);

Do you have any idea what might be the mistake.
The code works if i put the file in the root...

4

A quick peak at SD.cpp reveals that the separator is /, not .

5

Hey PaulS !

Sorry for me being such a lazy ass :slight_smile:

Thank you for the help