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HC-SR501 PIR Sensor
  • Function: Detects infrared radiation emitted by moving objects (typically humans) to sense motion.

  • Sensor Type: Passive Infrared (PIR) sensor with built-in signal processing circuitry.

  • Operating Voltage: 5V DC (works between 4.5V to 20V).

  • Detection Range: Approximately 7 meters with a detection angle of about 110°.

  • Output: Digital HIGH/LOW signal indicating motion detection.

  • Adjustable Settings:

  • Sensitivity: Adjustable detection distance via onboard potentiometer.

  • Time Delay: Adjustable output hold time (typically from 5 seconds to 5 minutes).

  • Low Power Consumption: Suitable for battery-powered applications.

  • Indicator LED: Built-in LED to indicate motion detection.

  • Compact Module: Easy to integrate into security, automation, and robotics projects.

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