Gravity: Arduino PIR (Motion) Sensor
We have ✅ 5 available of the DF-SEN0171 in our Sydney warehouse. An extra 460 units available with a short lead time.
A passive infrared (PIR) motion sensor from DFRobot's Gravity series. It detects infrared radiation from people and animals in motion and outputs a digital HIGH signal when movement is detected — ideal for security systems, occupancy sensing, and automated lighting projects.
The sensor operates at 3.3–5 V and uses DFRobot's Gravity 3-pin interface for plug-and-play connection to Arduino, Raspberry Pi, and other microcontrollers. An onboard LED lights up when motion is detected.
Key Features
- PIR Motion Detection – Detects human and animal movement via infrared
- 7 m Detection Range – 100° detection angle
- 3.3–5 V Operation – Compatible with both 3.3 V and 5 V logic
- Gravity Interface – PH2.0 3-pin connector for plug-and-play wiring
- Low Power – 15 µA working current
- LED Indicator – Lights when output is HIGH (motion detected)
Specifications
- Input Voltage: 3.3–5 V (6 V max)
- Working Current: 15 µA
- Output: Digital (HIGH 3 V / LOW 0 V)
- Output Delay: ~2.3–3 seconds (HIGH)
- Detection Angle: 100°
- Detection Distance: 7 m
- Pin Limit Current: 100 mA
- Connector: PH2.0 3-pin (Gravity)
- Module Size: 30 × 22 mm
- Operating Temperature: −20 to +85 °C
Ideal For
- Security and intrusion detection systems
- Occupancy-based automation (lighting, HVAC)
- Interactive installations and exhibits
Package Contents
- 1× Gravity Digital PIR Motion Sensor
- 1× Gravity Digital Cable
Resources
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