DescriptionYou 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.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. PINOUTLabelMeaningConnectionVCCPower sourceConnect to 5V of the systemOUTDigital OutputConnect to digital pinGNDGroundConnect to the GND of the systemSPECIFICATIONOperating voltage4.5 – 20 VQuiescent current50 μALevel outputHIGH 3.3 V / LOW 0 VTriggerL single trigger / H repeating triggerDelay time3 – 300 sBlocking time2.5 s (default)TriggerL single trigger / H repeating triggerMeasuring range3 – 7 m maximum2 mmMeasuring angle< 110° cone anglePCB dimensions32.5 x 24 mmMounting holes2 mm, 28.5 mm spacingFresnel lens dimensions15 mm x 23 mm diameterOperating temperature-15 – 70 °CDOCUMENTATIONDatasheetTutorialSHIPPING LIST1 x HC-SR501 PIR Motion Sensor
