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Pir Sensor - Overview

PIR Movement sensor​

The PIR Movement sensor is a device that detects physical movement within its field of vision by sensing changes in infrared radiation. This sensor works on the principle of detecting thermal signals emitted by objects, predominantly warm-blooded creatures like humans. The “passive” in the name refers to the fact that the sensor itself does not emit or radiate any energy for detection. The Qwiic version of this product communicates via I2C on a user-defined address.

PIR Movement sensor
PIR Movement sensor

Which products does this documentation cover?​

PIR Movement sensor board

PIR Movement sensor board

333083
PIR Movement sensor board with easyC

PIR Movement sensor board with easyC

333179

Key Features​

  • Standard version:

    • Voltage: 2.7-12V
    • Delay: 2s
    • Sensing range: Angle up to 100 degrees, 3-5 meters
    • Dimensions: 38 x 22 mm (1.5 x 0.9 inches)
    • Mounting: Four mounting holes for secure attachment

  • easyC compatible version:

    • Voltage: 2.7-12V
    • Delay: 2s
    • Sensing range: Angle up to 100 degrees, 3-5 meters
    • Dimensions: 38 x 22 mm (1.5 x 0.9 inches)
    • Microcontroller: ATTINY404
    • Communication: I2C
    • Connector: 2 × Qwiic (formerly easyC) ports (plug-and-play, no soldering needed)
    • Mounting: Four mounting holes for secure attachment

You may also need​

Qwiic cable

Qwiic cable

Qwiic (formerly easyC) compatible cables with connectors on both ends, available in various lengths.