HC-SR501 PIR Motion Detector Sensor Module for Arduino

HC-SR501 PIR Motion Detector Sensor – Human Motion Detection for Arduino and IoT Projects

The HC-SR501 PIR (Passive Infrared) Sensor is a reliable motion detection module that senses infrared radiation emitted by the human body. It detects motion within a range of 3 to 7 meters and features adjustable sensitivity and delay time, making it suitable for a wide variety of automation and security projects.

The module works perfectly with Arduino, ESP32, Raspberry Pi, and other microcontrollers, making it popular for IoT systems, automatic lighting, alarms, and home security projects in Bangladesh.

Key Features:

• Detection Range: 3 to 7 meters (adjustable)

• Delay Time: 5–300 seconds (adjustable)

• Operating Voltage: 4.5V to 20V (typically 5V)

• Output: Digital HIGH (motion detected), LOW (no motion)

• Field of View: 120° cone angle

• Low power consumption

• Compact and easy to mount

Applications:

• Motion-activated lighting systems

• Home and office security alarms

• IoT-based automation and monitoring

• Energy-saving smart devices

• Student projects and smart building systems in Bangladesh

The HC-SR501 PIR Motion Sensor is a low-cost and effective solution for adding human motion detection to your embedded and IoT applications.