#include <Wire.h>
#define boton D10

void setup()
{
  Wire.begin();
  pinMode(boton, INPUT);  
}

void loop()
{
  Wire.beginTransmission(8);
  Wire.write('A');
  Wire.endTransmission();
  delay(1000);
   if(digitalRead(boton)==HIGH)
  {

  }
  

}