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Self-made infrared automatic door controller circuit, the market finished the automatic door control and enforcement agencies generally high prices, the introduction of the method is suitable for home use, the components used are very easy to find, do not have interest in like a try.

详细说明：自制红外线自动门控制器电路，市场上成品的自动门控制及执行机构价格普遍偏高，文中介绍的方法适合家庭自制使用，用到的元器件都很容易找到，有兴趣者不仿一试。

I would beam back in a quietly idiotic manner.

我就冲他们默默地傻乎乎地笑笑。