8个发光管由上至下间隔1s流动，其中每个管亮500ms,灭500ms,亮时蜂鸣器响，灭时关闭蜂鸣器，一直重复下去-Eight light-emitting tube top to bottom interval 1s flow which each pipe lit 500ms, off 500ms bright buzzer off when you turn off the buzzer, and has been repeated down