Grove MINI PIR Motion Sensor

Reference: SEEED 101020353

4 Items

Description

MINI PIR motion sensor is a compact, low power consumption, and cost-effective PIR sensor which is suitable for applications with relatively less detection distance requirements.

Features

Adjustable sensitivity: a reserved pin out on board to solder a slide rheostat to adjust the sensitivity
Easy to use: Grove compatible interface and supports both Arduino and Raspberry Pi platforms
Mini size:20mm x20mm x12mm

What is a PIR Sensor?

A passive infrared sensor is an electronic sensor that measures infrared light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. PIR sensors are commonly used in security alarms and automatic lighting applications.

What does a PIR sensor detect?

PIR sensors are also known as PID or Passive Infrared Detectors. Thus, the PIR sensor can detect infrared radiation that is emitted by particles.

How does PIR Sensor work?

The PIR Sensor has 2 slots, and the slots are made of sensitive material. When the sensor is inactive, then the two slots will sense the same amount of IR. The ambient amount radiates from the outdoors, walls or room, etc.
When a human body or any animal passes by, it intercepts the first slot of the PIR sensor. This causes a positive differential change between the two bisects. But when the body leaves the sensing area, the sensor generates a negative differential change between the two bisects.

Click to explore more about PIR sensors.

Comparison of PIR Motion Sensor Series

Product	Features
Grove - PIR Motion Sensor	Max Distance:3-6m(3m by default) Angle:< 120°	Measuring distance and holding time adjustable response speed:0.3s - 25s
Grove-Adjustable PIR Motion Sensor	Max Distance:3-6m Angle: X=110° Y=90°	Measuring distance and holding time adjustable
Grove - mini PIR motion sensor	Max Distance:2-5m(2m by default) Angle: X=110° Y=90°	Sensitivity adjustable Mini-size
PIR Motion Sensor - Large Lens version	Max Distance:9m Angle:< 120°	The large lens can support long-range and wide-angle 2.54mm standard connector
PIR Motion sensor module	Max Distance:3-7m Angle:< 120°	Sensitivity & Delay time adjustable
Mini PIR Motion Sensor Module	Max Distance:7m Angle:< 100°	Mini-size
Grove Digital PIR Motion Sensor	Max Distance:3-12 m Angle:< 100°	Mini-size Simple and intuitive

Technical details

Dimensions	20mm x20mm x12mm
Weight	G.W 8g
Battery	Exclude
Sensor chip	S16-L221D
Supply Voltage	3.3 – 5V
Working Current	12 – 20 μA
Sensitivity	120 – 530 μV
Max detecting range	2m(25℃)

Typical Applications

Motion Sensor
Motion Detector
Security Alarm System
Human Detection System

Part List

Grove - mini PIR motion sensor

Note: Please note that the orientation can influence the sensitivity, for more accurate detection, please place the sensor as in the picture below.