SD : File class
Read from the file.
read() inherits from the Stream utility class.
file.read() file.read(buf, len)
file: an instance of the File class (returned by SD.open())
buf: an array of characters or bytes
len: the number of elements in buf
The next byte (or character), or -1 if none is available.
Corrections, suggestions, and new documentation should be posted to the Forum.
The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.