I have got a String filled up with 0 and 1 and would like to get an Integer out of it:

String bitString; 
int Number;
int tmp;

bitString = "";
  for (i=1;i<=10;i++)
  {
    tmp= analogRead (A0);
    bitString +=  tmp % 2;
    delay(50);
  }
// Number = bitstring to int <-------------