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Gravity: Digital Infrared Motion Sensor


Gravity : motion sensor

  • PIR
  • Digital output (0 = motion)
  • Power supply : 3 to 5V

More details

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5,32 € tax incl.


A ready-to-use PIR motion sensor with Gravity interface

Here is a very easy to use motion detector with your Arduino board or other MicroController. Power it on and wait 1 to 2 seconds for it to capture the state of the part. Then, any movement will activate the alarm which will place its output pin at the Low level.

This sensor monitors the infrared temperature in the detection angle and compares the result with that captured on power up. Both animals and humans emit energy in the form of heat (infrared radiation) which the sensor search to detect. If the sensor detects a difference then it triggers the alarm event.

Infrared sensors are widely used around the world and can be used for home alarm systems, recording mechanism activated when motion is detected, automated door for pets, automated control of lighting.

The infrared motion sensor (PIR) is very widely used in Arduino-based automation projects and other microcontrollers.

The activation delay can be adjusted using the potentiometer on the back of the board

Gravity connectic facilitate connection to the Gravity IO Shield for Arduino. The Gravity connectic can also be used with breadboard or perfboard thanks to its 2.54mm impaction.

For each order, you'll receive a module with the motor, the propeller and a digital cable.

Technical details

  • Type: digital
  • Supply Voltage: 3 to 5V
  • Current: 50 μA
  • Working temperature: 0 to +70°C
  • Output level:
    • High: 4V (when powered @ 5V)
    • Low: 0.4V
  • Detect angle: 110 Degrees
  • Detect distance: 7 meters
  • Size: 28mm × 36mm
  • Weight: 25 gr
  • Interface: Gravity

Using in 3.3V microcontroler

Accordingly to the technical information, this sensor can also be used with a 3.3V microcontroller. In such case, the output level high level will be around 2.8 to 3V.



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