HC-SR501 PIR Motion Sensor Module HW-416-B for Arduino
HC-SR501 PIR Motion Sensor Module HW-416-B for Arduino
HC-SR501 PIR Motion Sensor Module HW-416-B
Detect human movement and build smarter automation projects with the HC-SR501 passive infrared motion sensor module. It senses changes in infrared radiation from people and other warm objects, making it useful for Arduino alarms, automatic lighting, security projects, and motion-triggered electronics.
Key features
- Passive infrared sensing for human and warm-object movement detection
- Adjustable sensitivity for changing the detection range
- Adjustable output delay time for flexible project control
- Selectable trigger mode on common versions, including repeat and single-trigger operation
- Simple digital output for Arduino and microcontroller projects
Typical specifications
- Operating voltage: commonly 5V to 20V DC, depending on the module version
- Detection range: typically adjustable up to approximately 3 to 7 metres
- Output: digital TTL-level signal when motion is detected
- Warm-up time may be required after power-up for stable operation
Project uses
- Automatic lights and energy-saving controllers
- Arduino security alarms and motion alerts
- Smart home and room-occupancy projects
- Robot and interactive electronics projects
Important usage note
The exact voltage range, trigger behavior, detection distance, and delay timing can vary between HC-SR501 board versions. Keep the sensor away from direct heat sources, strong airflow, and rapidly changing temperatures for more stable results. Check the module markings before connecting it to your controller.
Package includes
- 1 x HC-SR501 PIR motion sensor module
A versatile and affordable motion sensor for Arduino, ESP, and DIY automation projects in Pakistan.