HC-SR312 miniature human PIR module infrared module pyroelectric human body infrared sensor

 

1. Module Description
AM312 Human Sensing Module: It is a digital intelligent automatic control product based on passive human infrared technology, with high sensitivity and strong reliability, widely used in various automatic sensing electrical equipment

 

2. Schematic diagram and typical applications

 

3.Technical parameters
1. Working voltage: DC 2.7-12V
2. Static power consumption:< 0.1mA
3. Delay time: 2 seconds
4. Lockdown time: 2 seconds
5. Trigger method: repeatable
6. Sensing range: ≤ 100 degree cone angle, 3-5 meters; (Depending on the specific lens)
7. Working temperature:- 20 - +60℃
8. PCB dimensions: 10mm * 8mm
9. Module lens: Small lens
4. Functional Features
a.  Enhanced anti-interference capability, internal digital signal processing, direct high and low level output.
b. Repeatable triggering method: After sensing the output of a high level, if a human body is active within its sensing range during a delay period, its output will remain high until the person leaves and then become low after a delay (i.e., the sensing module will automatically extend a delay period after detecting each human body activity, and the last activity time will be used as the starting point of the delay time).