HC-SR501 PIR Sensor Human Body Infrared Sensing Module

Suitable for Raspberry PI, Arduino, Micro:Bit

Product Description:

HC-SR501 human body infrared sensor module is an automatic control product based on infrared technology. High sensitivity, strong reliability, ultra-low power consumption, ultra-low voltage working mode. Widely used in various automatic induction electrical equipment, especially automatic control products powered by dry batteries.

Electrical parameters Product model: HC-SR501 Human body induction module Operating voltage range: DC voltage 4.5-20V
Quiescent current: <50uA
Level output: high 3.3 V / low 0V
Trigger mode: L non-repeatable trigger/H repeat trigger (default repeat trigger)
Delay time: 0.5-200S (adjustable) can be produced from a few tenths of a second to tens of minutes Blocking time: 2.5S (default) can be produced from a few tenths of a second to tens of seconds Circuit board dimensions: 32mm*24mm
Sensing Angle: <100° Cone Angle Operating Temperature: -15-+70° Sensing Lens Size: Diameter: 23mm

Tutorial:

http://henrysbench.capnfatz.com/henrys-bench/arduino-sensors-and-input/arduino-hc-sr501-motion-sensor-tutorial/

http://howtomechatronics.com/tutorials/arduino/how-pir-sensor-works-and-how-to-use-it-with-arduino/

Micro:bit Sample Code:

https://makecode.microbit.org/_7TkbewA17hfP