@Override
  public void teleopInit() {
    System.out.println("start");
    for (int i = 1; i < 128; i++) {
      I2C a = new I2C(I2C.Port.kOnboard, i);
      if (!a.addressOnly()) {
        System.out.println(i);
      } else {
        System.out.println("fail, " + i);
      }
    }
  }