Home Page | Language Reference (extended) | SD Reference | Libraries | Comparison | Changes

Wire

read()

Description

Reads a byte that was transmitted from a slave device to a master after a call to requestFrom() or was transmitted from a master to a slave. read() inherits from the Stream utility class.

Syntax

Wire.read()

Parameters

none

Returns

The next byte received

Example

#include <Wire.h> void setup ( )
{
  Wire.begin ( ) ;        // join i2c bus (address optional for master)
  Serial.begin ( 9600 ) ;  // start serial for output
} void loop ( )
{
  Wire.requestFrom ( 2 , 6 ) ;    // request 6 bytes from slave device #2   while (Wire.available ( ) )    // slave may send less than requested
  {
    char c = Wire.read ( ) ;    // receive a byte as character
    Serial.print (c) ;         // print the character
  }   delay ( 500 ) ;
}