PIR MOTION DETECTION MODULE HC-SR501

Description

The HC-SR501 PIR Motion Detection Module is a passive infrared (PIR) sensor designed to detect human movement by sensing changes in infrared radiation. It is widely used in security systems, automatic lighting, smart home devices, and Arduino-based motion detection projects.

Key Features

• Detects human motion using passive infrared technology
• Adjustable sensitivity and delay time settings
• Wide motion detection range and angle
• Digital output for easy microcontroller interfacing
• Low power consumption for continuous operation
• Compatible with Arduino, ESP32, Raspberry Pi, and PLC systems
• Built-in signal processing for stable detection
• Repeatable and non-repeatable trigger modes
• Compact PCB module for easy installation
• Reliable performance for indoor automation applications

Specifications

1. Product Type: PIR Motion Detection Sensor Module
2. Model: HC-SR501
3. Sensor Type: Passive Infrared (PIR) Sensor
4. Operating Voltage: 4.5V – 20V DC
5. Operating Current: < 65 µA (quiescent)
6. Output Type: Digital High/Low Signal
7. Output Voltage: 3.3V TTL Level
8. Detection Distance: 3 – 7 Meters (adjustable)
9. Detection Angle: Up to 120°
10. Delay Time: Adjustable (approximately 3 seconds to 300 seconds)
11. Sensitivity Adjustment: Onboard potentiometer
12. Trigger Modes: Repeatable (H) / Non-repeatable (L)
13. Operating Temperature: -15°C to +70°C
14. Board Dimensions: Approximately 32 × 24 mm
15. Application: Security alarms, automatic lighting, smart home systems, occupancy detection, robotics, industrial automation projects