Serial.readBytes()

Description

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

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

Serial.readBytes() inherits from the Stream utility class.

Syntax

Serial.readBytes(buffer, length)

Parameter Values

  • Serial: serial port object. See the list of available serial ports for each board on the Serial main page.
  • buffer: the buffer to store the bytes in. Allowed data types: array of char or byte.
  • length: the number of bytes to read. Allowed data types: int.

Return Values

  • The number of bytes placed in the buffer. Data type: size_t.

See Also

Please note: These are affiliate links. If you buy the components through these links, We may get a commission at no extra cost to you. We appreciate it.