PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, “Passive Infrared”, “Pyroelectric”, or “IR motion” sensors.
This motion sensor module uses the LHI778 Passive Infrared Sensor and the BISS0001 IC to control how motion is detected.
The module features adjustable sensitivity that allows for a motion detection range from 3 meters to 7 meters.
The module also includes time delay adjustments and trigger selection that allow for fine tuning within your application
1.Working voltage: DC5V to 20V
2. Static consumption: 65 microamps
3. level output: 3.3V high, low 0V
4.Time delay: Adjustable (0.3 seconds to 18 seconds)
5.Blockade of the time: 0.2 seconds
6.Trigger: L can not be duplicated, H can be repeated, the default value of H
7.Sensing range: less than 120 degrees cone angle less than 7 m
8.Working temperature: -15 to 70 degrees
9.PCB Dimensions: 32 * 24mm ,screw pitch 28mm ,screw aperture 2mm, sensor lens Dimensions: (diameter): 23mm (default)
PIN 1: This pin is Vcc, it is used for input voltage. Its input voltage varies from 5V to 12V.
PIN 2: It’s the OUT Pin which is fed to the microcontroller.
PIN 3: We have to apply ground on this pin.