How can I generate a filename to use with SD.open( fileName, FILE_WRITE )? I've spent the morning going through forum posts and the online guides for using variable names for SD.open() calls. Some of the posts predate the library's update to accept String parameters. (Using a char[] causes a compil…

Variable SD filename raising "Wmaybe-uninitialized" warning

Zero_Magnitude December 19, 2018, 11:08pm 2

More checking inside the sd and sdfat libraries ... it looks like there isn't a single example of using a variable name to open a file?

That can't be right. What am I missing here?

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