The PIR Motion Detector HC-SR501 is an infrared-based sensor module that detects human motion by sensing changes in infrared radiation, making it ideal for automation and security applications.
- Passive Infrared (PIR) technology for motion detection
- Adjustable sensitivity and delay time settings
- Operating voltage typically 5V–20V DC
- output signal for easy integration with microcontrollers
- Ideal for security systems, automatic lighting, alarms, and DIY projects






