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Sensors
PIR Motion Sensor
Detects warm bodies moving in front of it.
Definition
A passive infrared sensor that triggers a digital output when it sees a change in IR radiation.
AI Application
Wakes a camera-based AI model only when motion is detected, saving power and bandwidth.
Parts & pins
1
VCC
4.5–20V power
2
OUT
Digital output (HIGH/LOW)
3
GND
Ground reference
4
Fresnel Lens
Focuses IR onto sensor
5
Sensitivity Pot
Adjusts detection range
6
Time Pot
How long OUT stays HIGH
Works with
Hardware you can wire this part to in a typical project.
