Description
Big Dome PIR Motion Detection Sensor Module HC-SR501
The HC-SR501 PIR Motion Sensor Module is engineered to detect motion by sensing changes in infrared radiation emitted by objects within its range. It is particularly effective for detecting human movement and is widely used in security systems, automatic lighting, and various electronic projects. The module features a dome-shaped Fresnel lens that enhances its detection capabilities.
Technical Specifications
- Operating Voltage: 4.5V - 20V
- Operating Current: <60µA
- Detection Angle: <140°
- Detection Distance: Adjustable between 3m to 7m
- Delay Time: Adjustable from 5s to 200s (default: 5s)
- Blockade Time: 2.5s (default)
- Working Temperature: -20°C to +80°C
- Output Signal: Digital high/low (TTL output at 3.3V)
- Dimensions: Approximately 32mm x 24mm x 25mm
- Weight: About 6g
Features
- Onboard pyroelectric sensor and conditioning circuitry
- Dome-shaped Fresnel lens for improved motion detection
- Adjustable sensitivity and holding time via potentiometers
- Compatible with various microcontrollers including Arduino and Raspberry Pi
- Two trigger modes: Non-repeatable (L) and Repeatable (H)
- Optional photosensitive control and temperature compensation
- High sensitivity and reliability, making it suitable for battery-powered applications
Applications
- Automatic lighting systems in homes and offices.
- Security alarms for detecting unauthorized movement.
- Motion detection in robotics and automation projects.
- Sensing applications in smart home devices.
Package Includes
- 1 x Tiny Mini Dome PIR Motion Sensor Module (HC-SR501)