await BTSmart_M2_motor.setSpeed(512, Motor.CCW);
while (!(await BTSmart_I2_mini_switch.isClosed())) {
  await Utility.sleep(10);
}
await BTSmart_M2_motor.stop();
if (await BTSmart_I4_mini_switch.isClosed()) {
  await BTSmart_M1_motor.setSpeed(512, Motor.CW);
  await Utility.sleep(500);
  await BTSmart_M1_motor.stop();
  await Utility.sleep(500);
  await BTSmart_M2_motor.setSpeed(512, Motor.CW);
  while (!(await BTSmart_I4_mini_switch.isOpen())) {
    await Utility.sleep(10);
  }
  await BTSmart_M1_motor.stop();
  await Utility.sleep(500);
  await BTSmart_M2_motor.setSpeed(512, Motor.CCW);
  while (!(await BTSmart_I2_mini_switch.isClosed())) {
    await Utility.sleep(10);
  }
  await BTSmart_M2_motor.stop();
  await BTSmart_M1_motor.setSpeed(512, Motor.CCW);
  await Utility.sleep(500);
  await BTSmart_M1_motor.stop();
}