// Wire Master Writer
// by Nicholas Zambetti <http://www.zambetti.com>
// Editted by Robert W. Lindeman <http://www.cs.wpi.edu/~gogo/>

#include <Wire.h>

byte x = 0;                      // Incoming serial character.

void setup( )  {
  Wire.begin( );                 // Join i2c bus (address optional for master)

  Serial.begin( 9600 );          // start serial for output
  Serial.println( "Master" );
}
 
void loop( )  {
  Wire.beginTransmission( 4 ); // transmit to device #4
  Wire.send( "x is " );        // sends five bytes 
  Wire.send( x );              // sends one byte
  Wire.endTransmission( );     // stop transmitting

  x++;
  delay( 500 );
}