STEM与日常科技·英语30篇（9）

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智能窗帘如何无需手动开关自动调节光线

Smart blinds use tiny light sensors to measure brightness near windows every few minutes.
When sunlight becomes too strong, they quietly roll down just enough to keep rooms cool and comfortable.
At dusk, they sense fading light and open slowly to let in warm evening glow.
You can also tap a button on your phone to override the automatic setting anytime.
Some models learn your routine and lower blinds earlier on weekends when you sleep later.
They connect to home Wi-Fi so voice assistants like Alexa can control them with simple commands.
Battery-powered versions last over a year before needing replacement or recharging.
Installation takes less than thirty minutes and works with most standard window frames.
These blinds help reduce air conditioning use by blocking heat before it enters the room.
Many users say they forget they’re automated because the motion feels so natural.