#include <Wire.h>

void setup() {
  Wire.begin(); // join i2c bus (address optional for master)
  Serial.begin(9600);
}



void loop() {
  int x = 0;
  Wire.beginTransmission(9); // transmit to device #8
  Wire.write(x);              // sends one byte
  Wire.endTransmission();    // stop transmitting
  Serial.println("x");
  x++;
  if(x==6){x=0;}
  delay(500);
}