Grove Mini PIR motion sensor - 3,3-5 V, 20 x 20 mm
Grove Mini PIR motion sensor - 3,3-5 V, 20 x 20 mm
This goes with it
Pay in 30 days
Pay in 30 days
Description
Grove - Mini PIR Motion Sensor
The Grove - Mini PIR Motion Sensor is a compact, low-power, and cost-effective PIR sensor suitable for applications with relatively low detection-range requirements.
Features
- Adjustable sensitivity: A reserved pin layout on the board for soldering a potentiometer to adjust the sensitivity
- Easy to use: Grove-compatible interface, supports Arduino, ESP32, and Raspberry Pi
- Miniature size: 20 mm x 20 mm x 12 mm
Applications
- Motion sensor
- Motion detector
- Security alarm system
- Human detection system
Technical details
| Dimensions | 20 mm x 20 mm x 12 mm |
|---|---|
| Weight | 8g |
| Sensor chip | S16-L221D |
| Supply voltage | 3,3 – 5V |
| Operating current | 12 - 20 μA |
| Sensitivity | 120 - 530 μV |
| Maximum detection range | 2m (25℃) |
Note
Please note that orientation can affect sensitivity. For more accurate detection, please place the sensor as shown in the image below.
What is a PIR sensor?
A passive infrared sensor is an electronic sensor that measures infrared light emitted by objects in its field of view. They are most commonly used in PIR-based motion detectors. PIR sensors are frequently used in security alarms and automatic lighting applications.
How does the PIR sensor work?
The PIR sensor has 2 slots, which are made of sensitive material. When the sensor is inactive, both slots detect the same amount of infrared radiation. Ambient radiation is emitted from outside, walls, rooms, etc. When a human body or animal passes by, it is detected by the first slot of the PIR sensor. This results in a positive differential change between the two halves. However, when the body leaves the detection area, the sensor produces a negative differential change between the two halves.
Simple and intuitive
The Grove - Mini PIR Motion Sensor works with the same library as the Grove - PIR Motion Sensor.
Package contents
- 1x Grove - Mini PIR Motion Sensor
- 1x Grove cable