int *myPointer;
int k;

void setup()
{
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println((int) &k);
  Serial.println(k);
  myPointer = &k;

}

void loop() 
{
  // put your main code here, to run repeatedly:
  DigitPluser();
  Serial.println(k);


}
void DigitPluser(void)
{
  *myPointer = *myPointer + 1;
  delay(500);
}