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Grove Mini PIR Motion Sensor

Grove Mini PIR Motion Sensor

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Grove Mini PIR Motion Sensor

PIR(Passive Infrared Sensor) sensor is used for making motion detecting applications such as alarm burglar systems, visitor presence monitoring, light switches and robots. The Grove – 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 requirement.

The detection distance in the datasheet is up to 3m to 5m, however 2m is the best detection distance that we recommend and 25? is the most suitable temperature.

The sensitivity of the sensor is adjustable, there is reserved pin out on the back of the board so that you can solder a slide rheostat to adjust the sensitivity. If you think the sensitivity is not enough, here is a trick, drag the plastic cap a little up will help enhance the sensitivity.

Want to know more about how the PIR sensor works with Arduino and Raspberry pi, please click here to view the blog. If you need tutorials for operating the sensor, please click here to view the wiki.


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



  • Low power consumption
  • Sensitivity adjustable
  • Grove interface


  • Motion Sensor
  • Motion Detector
  • Security Alarm System
  • Human Detection System

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 ?A
Sensitivity 120 – 530 ?V
Max detecting range 2m(25?)

Part List

Grove - mini PIR motion sensor 1


These are the types of Grove Cables for other applications.

More information about how to choose a cable, please refer to this manual.