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                ## 人體紅外傳感器 ![](https://img.kancloud.cn/30/55/30556db26cf3596f1106d3be02c131fe_476x576.png) 當`MotionSensor`紅外傳感器探測到人的時候點亮`LED`燈。 ~~~ from gpiozero import MotionSensor, LED from signal import pause pir = MotionSensor(4) led = LED(16) pir.when_motion = led.on pir.when_no_motion = led.off pause() ~~~
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