September 2017
Intermediate to advanced
206 pages
4h 34m
English
Content preview from Intelligent IoT Projects in 7 Days
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PIR motion sensor
A Passive Infrared Detection (PIR) motion sensor is used to detect object movement. We can use this sensor to detect human presence. You can find PIR sensors at SeeedStudio (https://www.seeedstudio.com/PIR-Motion-Sensor-Large-Lens-version-p-1976.html), Adafruit (https://www.adafruit.com/product/189), and SparkFun (https://www.sparkfun.com/products/13285). A PIR motion sensor usually has three pins: VCC, GND, and OUT. The OUT pin is the digital output; if we get value 1, it means motion is detected.
You can see the PIR sensor from SeeedStudio here:
There's another PIR motion sensor from SparkFun, the SparkFun OpenPIR: https://www.sparkfun.com/products/13968 ...
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