SRF01 Address change

I need help changing the address of the SRF01. I'm using 3 sensors, but I can't change the default address. I don't know if I need to initialize the sensor (get it working) or just send the commands?

void setup()
{
  delay(70);
  digitalWrite (10,0x01);
  digitalWrite (10,0xA0);
  delay(70);
  digitalWrite (10,0x01);
  digitalWrite (10,0xAA);
  delay(70);
  digitalWrite (10,0x01);
  digitalWrite (10,0xA5);
  delay(70);
  digitalWrite (10,0x01);
  digitalWrite (10,0x02);
}
void loop() 
{
}

The datasheet says to use a break between commands so I'm guessing 70ms is enough.This has no effect by itself. And I tried using it in my working code (I can read the sensor with no problem,and in the range I want it to work). I'm using the UNO board. Any help is greatly appreciated! Thanks in advance!

your code does not makes sense as digitalWrite only supports LOW(0) and HIGH(all other values)

Check this thread - http://forum.arduino.cc/index.php?topic=222485.msg1615000#msg1615000 -
it is about a similar sensor SRF02 I think (at least in name), not solved in the end,
might help (or not)