Product description
RCWL-0516 is a microwave-based Doppler radar sensor used to detect motion of objects, including humans. Unlike passive infrared (PIR) sensors, which respond to heat, the RCWL-0516 uses active microwave technology and is therefore less affected by ambient temperatures. It can detect motion through non-conductive materials such as wood, plastic, and drywall.
Specifications:
- Operating voltage: 4 – 28 V DC
- Current consumption: 2.7 mA
- Output voltage (rated): 3.3 V
- Output current (rated): up to 100 mA
- Transmission power: 20 mW (typical), 30 mW (maximum)
- Operating frequency: 3.18 GHz
- Detection range: 5 – 7 meters (adjustable)
- Signal duration on detection: 2 seconds
- Dimensions: 36 x 17 mm
Features and Applications:
- Penetrating detection: Capable of detecting motion through non-conductive materials such as wood, plastic, and drywall.
- Light-dependent function: Includes a CDS input for connecting a photoresistor (LDR), enabling activation only in darkness.
- Adjustable sensitivity and pulse length: Detection range and signal duration can be configured via solder pads on the back.
- Compatibility: Suitable for integration with microcontrollers such as Arduino and Raspberry Pi.
Typical Applications:
- Automated lighting control
- Security systems and motion detection
- Presence detection in smart homes
- Robotics and interactive installations
