在按键按下的楼层停了下来。门打开了。

At the bottom it stopped, and the doors opened.

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如已处于低电量状态，每次按键按下时，电源LED 会闪2 下。

In this battery low status, the power LED flashes 2 times by pulling the scanner trigger.

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内外招使用按键按下与否带来的电平的改变来控制对应的单片机输入或输出口工作。

The inside and outside move of use pressed key presses down the level change which or not brings to control corresponding the monolithic integrated circuit input or the outlet work.

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