pir sensor

PIR (motion) sensor ID: 189 - $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits人真是種奇怪的生物呀... Adafruit Industries, Unique & fun DIY electronics and kits PIR (motion) sensor ID: 189 - PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before...

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PIR Motion Sensor Tutorial - Instructables - DIY How To Make Instructions哇~~~太令人受不了啦>/////Intro: PIR Motion Sensor Tutorial Pyroelectric ("Passive") InfraRed sensors:'''What is a PIR sensor?'''PIR sensors allow you to sense motion, almost always used to detect ... Step 1: How does it work? PIR sensors are more complicated than many of the othe...

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