file.write()

[SD]

Description

Write data to the file.

Syntax

file.write(data)
file.write(buf, len)

Parameters

• file: an instance of the File class (returned by SD.open())
• data: the byte, char, or string (char *) to write
• buf: an array of characters or bytes
• len: the number of elements in buf

Returns

byte: write() will return the number of bytes written, though reading that number is optional

See Also

• print()
• println()
• read()

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The text of the 86Duino reference is a modification of the Arduino reference and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.