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HC-SR501

ETC
Part Number HC-SR501
Manufacturer ETC
Description PIR Sensor
Published Feb 21, 2014
Detailed Description PIR Sensor (HC-SR501) Introduction Passive Infra-Red (PIR) sensors are used to detect motion based on the infrared heat...
Datasheet PDF File HC-SR501 PDF File

HC-SR501
HC-SR501

Overview
PIR Sensor (HC-SR501) Introduction Passive Infra-Red (PIR) sensors are used to detect motion based on the infrared heat in the surrounding area.
This makes them a popular choice when building a system to detect potential intruders or people in general.
These sensors can take for 10-60 seconds to warm up, so try to avoid motion during that time.
Parts • • • Arduino PIR Sensor Wires Schematic Below is the schematic for using a PIR sensor.
It is fairly simple.
Code Adafruit has a really good tutorial for how these sensors are used and various projects for them.
Below is the code for working with a PIR sensor.
It should be noted that the PIR sensor does not respond immediately when motion s...


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