SeeedStudio Grove Mini PIR Motion Sensor


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SKU: 597041
  1. Supply voltage: 3.3 V – 5 V
  2. Working current: 12 – 20 μA
  3. Sensitivity: 120 – 530 μV (adjustable)
  4. Max detecting range: 2m (25℃)
  5. Sensor chip: S16-L221D
  6. Low power consumption
  7. Grove compatible interface
  8. Compact size
  9. Cost-effective


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SeeedStudio Grove 4 pin Male Jumper to Grove 4 pin Conversion Cable 20cm(Pack of 5) ₹ 149
SeeedStudio Grove Universal 4 pin 20cm Unbuckled Cable (Pack of 5) ₹ 179

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Category: PIR / IR and Optical Sensor
Tags: Grove - Mini PIR Motion Sensor, mini pir motion sensor

Do you want a device for sensing human movements? We have a sensor for it, SeeedStudio Grove Mini PIR Motion Sensor v1.0. PIR stands for Passive Infra-Red. PIR sensor measures infrared (IR) light radiating from objects in its field of view. You can use this sensor in various motion detecting applications such as alarm burglar systems, visitor presence monitoring, light switches, and robots. Just simply connect it to Grove – Base shield and program it. When anyone moves in its detecting range, the sensor will output HIGH on its SIG pin and will give an indication of the movement.

Grove – Mini PIR Motion Sensor is compact, cost-effective, and has low power consumption; moreover, this sensor has adjustable sensitivity and there is a 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 for you. Drag the plastic cap a little up and it will help enhance the sensitivity. The detection distance in the datasheet is up to 3m to 5m, however, 2m is the recommended detection distance and also 25℃ is the most suitable temperature. It is completely suitable for applications with relatively fewer detection distance requirements and you can use this sensor in various applications such as Motion Sensor/Detector System, Security Alarm System, and Human Detection System.

For all Grove users (especially beginners), Seeed Studio provides guidance PDF documents. Please download and read through Preface – Getting Started and Introduction to Grove before using the product. This is a suitable product for not only Grove users but also all electronics enthusiasts. So, why wait? Buy now!


1. Grove – Mini PIR Motion Sensor will work with the same library as Grove – PIR Motion Sensor. So, please refer to the wiki page of Grove – PIR Motion Sensor and download the library from there to get started with this sensor.

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

Note : Version may different in actual product functionality remains same.

Grove - Mini PIR Motion Sensor v1.0

Useful Link:

http://wiki page


  1. Low power consumption
  2. Compact size
  3. Cost-effective
  4. Adjustable sensitivity
  5. Grove compatible interface

Package Includes:

1 x Grove – Mini PIR Motion Sensor v1.0

Working Current

12 ~ 20 μA


120 ? 530 ?V

Max. Detecting Range

2m (25?)

Length (mm):


Width (mm):


Height (mm):


Mounting hole diameter (mm)


Weight (g):


Shipping Weight 0.012 kg
Shipping Dimensions 6.8 × 4.3 × 1.2 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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User Manual

PCBA Grove - Mini PIR Motion Sensor v1.0

S16-L221D Datasheet

PIR Sensor Working Principle

This blog will cover the PIR sensor working principle.

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Country Of Origin: China

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