readBytes() returns the number of bytes placed in the buffer. A 0 means no valid data was found.

The number of bytes placed in the buffer

stream.readBytes(buffer, length)

buffer: the buffer to store the bytes in (char[] or byte[])
length : the number of bytes to read (int)

readBytes() returns the number of characters placed in the buffer. A 0 means no valid data was found.

This function is part of the Stream class, and is called by any class that inherits from it (Wire, Serial, etc). See the Stream class main page for more information.

Syntax

stream.readBytes(length)

Parameters

stream : an instance of a class that inherits from Stream.
length : the number of bytes to read (int)

byte

readBytes()

Description

readBytes() read characters from a stream into a buffer. The function terminates if the determined length has been read, or it times out (see setTimeout()).

readBytes() returns the number of characters placed in the buffer, a 0 means no valid data was found.

This utility function is not publicly available, and is part of the Stream class.

Returns

byte

See also

• Stream

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