PIR Motion Sensor Detector Module HC-SR501

PIR Motion Sensor Detector Module HC-SR501

The HC-SR501 PIR Motion Sensor Detector Module is designed to detect motion, primarily human body movement, within its range. This versatile sensor is ideal for a variety of applications, including security systems, automatic lighting, and IoT projects. Commonly referred to as a PIR (Passive Infrared) or Pyroelectric Motion Sensor, the HC-SR501 combines a high-performance infrared sensor with control circuitry and a Fresnel lens to ensure reliable detection.

The module features adjustable settings for sensitivity and delay time, allowing for customization based on specific requirements. Compatible with platforms such as Arduino, Raspberry Pi, AVR, PIC, and 8051, it can be easily integrated into different projects.

Features

• Infrared Motion Detection: Detects human body movement using passive infrared technology.
• Adjustable Sensitivity: Fine-tune the detection range from approximately 3 meters to 7 meters.
• Customizable Delay Time: Adjust holding time from 5 seconds to 200 seconds.
• Control Circuit Integration: Onboard control circuit board with a dome-shaped Fresnel lens for precise motion sensing.
• High Compatibility: Works seamlessly with microcontroller platforms like Arduino, Raspberry Pi, and others.
• Blockade Time: Default 2.5 seconds for resetting after motion detection.
• Color Variants: Available in blue and green; either color may be received upon purchase.

Specifications

Adjustable Settings

• Sensitivity Adjustment:
  • Turn the potentiometer clockwise to increase the detection range (up to ~7m).
  • Turn counterclockwise to reduce the range (down to ~3m).
• Delay Time Adjustment:
  • Turn the potentiometer clockwise to increase the delay (up to ~200s).
  • Turn counterclockwise to decrease the delay (down to ~5s).

Applications

• Security systems and motion-activated cameras.
• Automated lighting systems.
• Energy-saving solutions.
• IoT motion-triggered applications.

With its reliable performance, customization options, and ease of integration, the HC-SR501 PIR Motion Sensor Detector Module is an excellent choice for motion detection in a wide range of projects.