PIR Motion sensor module
PIR Motion sensor module
PIR ?Passive Infrared?sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range
How to Use PIR Sensor
The PIR sensor have 3 pins:
Power: 3-5 VDC
Output: High (when motion detected)
Low (no motion detected)
Ground: connected to ground
The output pin will go ?high? to 3.3V and light up the LED when motion detected.
Specifications:
Input Voltage: DC 3-5V
Output signal: 3.3V (motion detected-output high)
Detection Angle: 110 degree
Detection Angle: max 7 m
How Does The PIR Sensor Work
The PIR sensor itself has two slots each one of them is made of a special material that is sensitive to infrared. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor. This causes a positive differential change between the two halfes. These change pulses are what is detected.
How Does The PIR Sensor Work
The PIR sensor itself has two slots each one of them is made of a special material that is sensitive to infrared. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor. This causes a positive differential change between the two halfes. These change pulses are what is detected.
How Does The PIR Sensor Work
The PIR sensor itself has two slots each one of them is made of a special material that is sensitive to infrared. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor. This causes a positive differential change between the two halfes. These change pulses are what is detected.
How Does The PIR Sensor Work
The PIR sensor itself has two slots each one of them is made of a special material that is sensitive to infrared. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor. This causes a positive differential change between the two halfes. These change pulses are what is detected.
How Does The PIR Sensor Work
The PIR sensor itself has two slots each one of them is made of a special material that is sensitive to infrared. When a warm body like a human or animal passes by, it first intercepts one half of the PIR sensor. This causes a positive differential change between the two halfes. These change pulses are what is detected.
