PIR Motion Detector Sensor Module for Arduino, Raspberry Pi & IoT Projects
The PIR Motion Detector Sensor Module for Arduino, Raspberry Pi & IoT Projects detects motion by sensing changes in infrared radiation from warm bodies. An essential component for security systems, automatic lighting, and occupancy detection projects.
Key Features
- Passive infrared detection
- Adjustable sensitivity
- Adjustable delay time
- Low power consumption
- Digital output (HIGH/LOW)
- Wide detection angle
Technical Specifications
- Model: HC-SR501
- Operating Voltage: 4.5V – 20V
- Detection Range: Up to 7 meters
- Detection Angle: 120°
- Delay Time: 5-200s (adjustable)
- Output: Digital 3.3V HIGH/LOW
Pinout
- VCC: 4.5V-20V
- OUT: Digital output
- GND: Ground
Applications
- Security alarm systems
- Automatic lighting
- Occupancy sensing
- Smart home automation
- Energy management





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