#include <Wire.h>
#define device (1)

void setup() {
  // put your setup code here, to run once:
  Wire.begin();
}

void loop() {
  // put your main code here, to run repeatedly:
  Wire.beginTransmission(device);
  Wire.write(1);
  Wire.endTransmission();
  delay(200);
Wire.beginTransmission(device);
   Wire.write(0);
  Wire.endTransmission();
  delay(200);
}