PIR Sensor Module (HC-SR501) – Motion Detection Sensor for Arduino & IoT Projects in Bangladesh
The PIR Sensor Module (Passive Infrared Sensor) is a widely used motion detection component designed for detecting human presence through infrared radiation. This module is perfect for Arduino, Raspberry Pi, and IoT-based automation systems, making it highly popular among students, engineers, and hobbyists in Bangladesh.
Whether you’re building a smart home security system, automatic lighting, or motion-triggered alarm, this PIR module offers reliable performance with low power consumption.
It detects motion by sensing changes in infrared radiation emitted by human bodies, making it ideal for indoor applications such as home automation, robotics, and surveillance systems.
This module is beginner-friendly and can be easily integrated into projects with simple wiring and coding.
Features:
- High sensitivity motion detection
- Adjustable delay time and sensitivity
- Low power consumption
- Wide operating voltage range
- Compact and lightweight design
- Easy integration with Arduino & microcontrollers
- Stable and reliable performance
Specifications:
| Parameter | Details |
|---|---|
| Operating Voltage | 4.5V – 20V DC |
| Output Voltage | 3.3V (High) / 0V (Low) |
| Detection Range | 3m – 7m (adjustable) |
| Detection Angle | ~120° |
| Delay Time | Adjustable (5 sec – 5 min) |
| Trigger Mode | Single / Repeatable |
| Operating Current | < 60µA |
| Sensor Type | Passive Infrared (PIR) |
| Module Model | HC-SR501 |
Use Cases:
- Smart home automation systems
- Motion-based lighting control
- Intruder alarm systems
- Robotics projects
- IoT-based security solutions
- Automatic door systems
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