Description

You should absolutely consider acquiring an HC-SR501 Passive Infrared (PIR) sensor for yourself if you want to create a house burglar alarm or a trail camera, or if you want to wake up animated Halloween accessories when trick-or-treaters knock on your door.

HC-SR501-PIR-Motion-Sensor-working-principle

The PIR sensor detects when a human or animal enters or exits the sensor’s range. This sensor is found in most modern security systems, automated light switches, garage door openers, and other applications that need motion detection.

 

PINOUT

Label Meaning Connection
VCC Power source Connect to 5V of the system
OUT Digital Output Connect to digital pin
GND Ground Connect to the GND of the system

HC-SR501-Pinout-Annotation

SPECIFICATION

Operating voltage 4.5 – 20 V
Quiescent current 50 μA
Level output HIGH 3.3 V / LOW 0 V
Trigger L single trigger / H repeating trigger
Delay time 3 – 300 s
Blocking time 2.5 s (default)
Trigger L single trigger / H repeating trigger
Measuring range 3 – 7 m maximum
2 mm
Measuring angle < 110° cone angle
PCB dimensions 32.5 x 24 mm
Mounting holes 2 mm, 28.5 mm spacing
Fresnel lens dimensions 15 mm x 23 mm diameter
Operating temperature -15 – 70 °C

DOCUMENTATION

SHIPPING LIST

  • 1 x HC-SR501 PIR Motion Sensor
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