Keyestudio EASY PLUG Ultimate Starter Kit - Project 13: Someone Is in this Area

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Project 13: Someone is in this area!
Overview
How can we know someone enters and leaves a certain area? Great, use a
PIR motion sensor. The PIR sensor allows to detect motion.That information
can be useful, for example, to trigger an alarm or to turn on the lights.
Component Required:
 EASY plug control board*1
 EASY plug PIR Motion Sensor*1
 EASY plug LED module*1
 EASY plug Fan motor*1
 RJ11 cable*3
 USB cable*1
Component Introduction:
EASY plug PIR Motion Sensor
PIR stands for Pyroelectric Infrared
(many times, they are also referred
as Passive Infrared sensors). This is
because their principle of operation is
based on the detection of infrared energy
emitted by a moving body.
The PIR sensor can detect infrared signals
from a moving person or moving animal, outputting switching signals.
One important thing to mention is that when motion is detected, the output
will stay high for 2.3 to 3 seconds after the motion stops.
Regarding the power supply, it can work with voltages of both 3.3V and 5V.