check position of DPST switch

gistfile1.ino

// check position of rocker function
// t = top pin connection to switch
// b = bottom pin connection to switch
int checkRocker(int t, int b) {
  int top = digitalRead(t);
  int bottom = digitalRead(b);
  if (top == LOW && bottom == HIGH) return 0; // top position
  else if (top == HIGH && bottom == HIGH) return 1; // middle position
  else if (top == HIGH && bottom == LOW) return 2; // low position
}