PIR Motion Sensor
Including €0.01 for ecotax
What is a PIR sensor?
PIR (“passive infrared”, “pyroelectric” or “infrared motion”) sensors are used as motion sensors. They can determine whether a human being (and in the case of the Adafruit PIR sensor, an animal) has entered or left the module’s detection area.
Strong, cheap and ultra-compact, these small sensors are frequently used not only to design small electronic objects and gadgets making use of motion detection, but also for prototyping.
PIR Motion Sensor by Adafruit: practical and adaptable
Like all PIR sensors, this motion sensor module designed by Adafruit is extremely easy to use and pretty energy efficient. Better still, it offers a certain flexibility since you can:
- decrease its power requirements and pass from 5 to 3V (with a few soldering operations to bypass the regulator);
- adjust the motion sensor’s response time (between 2 and 4 seconds);
- adjust the module’s sensitivity; and
- position your sensor as you want thanks to the 30 cm cable with socket also supplied with the PIR sensor.
Technical specifications of the Adafruit PIR Sensor
- Supply: 5-16V
- Digital output signal: 3.3V
- Range: 7 m
- Detection cone: 120°
- Adjustable response time (2-4 sec.) and sensitivity
- 30 cm cable included
- Length: 24.03 mm
- Width: 32.34 mm
- Screw hole distance: 28 mm
- Screw hole diameter: 2 mm
- Height (with lens): 24.66 mm
- Weight: 5.87 g
Resources for the 189 Motion Sensor
Everything you always wanted to know about PIR sensors can be found below!