HC-SR501 PIR Motion Sensor Module

Detailed Specifications

The HC-SR501 is incredibly easy to interface with any microcontroller. When motion is detected, the sensor simply outputs a 3.3V high digital signal, which can be read instantly by an Arduino, ESP32, or NodeMCU. Because of its massive 5V to 20V input range and ultra-low power consumption, it is perfect for battery-powered, long-term monitoring devices where efficiency is critical.

• Operating Voltage Range: 5V - 20V DC
• Quiescent Current: < 50µA (Ultra-low power consumption)
• Output Signal: Digital High (3.3V) / Low (0V)
• Detection Range: 3 meters to 7 meters (Adjustable via onboard potentiometer)
• Detection Angle: < 110 degrees (Cone shape)
• Delay Time: 0.3 seconds to 5 minutes (Adjustable via onboard potentiometer)
• Blockade Time: 2.5 seconds (Default)
• Trigger Methods: L (Unrepeatable trigger) / H (Repeatable trigger)
• Dimensions: 32 mm x 24 mm x 18 mm (with dome lens)

Pinout Configuration:

• VCC: Power Supply Input (5V - 20V)
• OUT: Digital Output (3.3V High when motion is detected)
• GND: Ground

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