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Lesson 15 Intrusion Detection by PIR
Overview
In this lesson, you will learn how to use Passive Infrared (PIR) sensor to detect the movement
nearby.
Components Required
Name Qty Name Qty
UNO R3 or MEGA 2560 1 220Ω Resistor 1
PIR Movement Sensor 1 LED 1
DuPont Wire 1
Component Introduction
PIR sensors respond to heat and can be triggered by the heat source
such as animals as well as people. The output of Passive Infrared (PIR)
sensor will go high when the motion has been detected.
Wiring Diagram