PIR (Motion) Sensor
Passive infrared motion sensor with adjustable sensitivity and 2–4 s output delay; detects movement up to ~6 m away. Includes a 30 cm cable with socket for remote mounting.
Pinout
- + voltage power
3-pin Adafruit PIR sensor cable: red cable is + voltage power. The guide says PIR power is usually 3-5VDC input but may be as high as 12V.
Type · PowerVoltage · usually 3-5VDC input; may be as high as 12V - - ground power
3-pin Adafruit PIR sensor cable: black cable is - ground power.
Type · GroundVoltage · 0V ground - signal out
3-pin Adafruit PIR sensor cable: yellow is the signal out. The guide describes the PIR output swinging high or low when motion changes the sensed infrared level.
Type · Signal
| Pin | Type | Function | Voltage |
|---|---|---|---|
| + voltage power | Power | 3-pin Adafruit PIR sensor cable: red cable is + voltage power. The guide says PIR power is usually 3-5VDC input but may be as high as 12V. | usually 3-5VDC input; may be as high as 12V |
| - ground power | Ground | 3-pin Adafruit PIR sensor cable: black cable is - ground power. | 0V ground |
| signal out | Signal | 3-pin Adafruit PIR sensor cable: yellow is the signal out. The guide describes the PIR output swinging high or low when motion changes the sensed infrared level. |
Pin details
3 connections- + voltage power
3-pin Adafruit PIR sensor cable: red cable is + voltage power. The guide says PIR power is usually 3-5VDC input but may be as high as 12V.
PowerVoltage · usually 3-5VDC input; may be as high as 12V - - ground power
3-pin Adafruit PIR sensor cable: black cable is - ground power.
GroundVoltage · 0V ground - signal out
3-pin Adafruit PIR sensor cable: yellow is the signal out. The guide describes the PIR output swinging high or low when motion changes the sensed infrared level.
Signal
Start wiring
Analog · I2C · UART · 3.3 – 5 V · Breakout
Verify supply voltage and logic levels before powering up.
Module pins: + voltage power, - ground power, signal out. Schematik maps them to your board in the app.
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