await BTSmart_M2_motor.setSpeed(512, Motor.CCW);
while (!(await BTSmart_I2_mini_switch.isClosed())) {
  await Utility.sleep(10);
}
await BTSmart_M2_motor.stop();
while(true) {
  if (await BTSmart_I4_mini_switch.isClosed()) {
    await Utility.sleep(600);
    await BTSmart_M1_motor.setSpeed(512, Motor.CW);
    await Utility.sleep(500);
    await BTSmart_M1_motor.stop();
    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 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(400);
    await BTSmart_M1_motor.stop();
  }
  await Utility.sleep(10);
}