
Digital PIR Motion Sensor detects infrared radiation for precise motion detection. It integrates easily with Arduino/Raspberry Pi, suitable for home automation.
Digital motion output from the SEN0171 PIR sensor; DFRobot example wiring connects this output to Arduino digital pin 2, and the result text says it outputs about 3V high when motion is detected and 0V otherwise.
Module supply input for the Gravity digital PIR motion sensor.
Ground reference for module power and digital output.
| Pin | Position | Type | Function | Voltage |
|---|
0V low, about 3V high when triggered; module operates from 3.3V to 5V · 3.3V to 5V
Verify supply voltage and logic levels before powering up.
Module pins: VCC, GND, D. Schematik maps them to your board in the app.
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| D | Gravity PH2.0-3 signal pin | signal | Digital motion output from the SEN0171 PIR sensor; DFRobot example wiring connects this output to Arduino digital pin 2, and the result text says it outputs about 3V high when motion is detected and 0V otherwise. | 0V low, about 3V high when triggered; module operates from 3.3V to 5V |
| VCC | Gravity PH2.0-3 power pin | power | Module supply input for the Gravity digital PIR motion sensor. | 3.3V to 5V |
| GND | Gravity PH2.0-3 ground pin | ground | Ground reference for module power and digital output. | 0V |