mbp2

  matrix.setRotation(0);
  matrix.setTextSize(1);
  matrix.setTextWrap(false); // false means nice scroll, true means each character appears, scrolls off, then repeat
  matrix.setTextColor(LED_ON);
  for (int8_t x=0; x>=-96; x--) // 96 is number of characters to display x 8
  {
    matrix.clear();
    matrix.setCursor(x,0);
    matrix.print("Hello, world");
    matrix.writeDisplay();
    delay(100);
  }