The RCWL-0516 Microwave Radar Sensor Module is a motion detection module that uses microwave radar technology to detect moving objects. It offers long detection range and can operate through certain materials such as plastic or thin walls.
With its low power consumption and wide input voltage range, it is suitable for automation systems, lighting control, and security applications.
Key Features:
- Detection Range: 5 – 9 meters
- Low current consumption: ~2.8 mA (typical)
- High sensitivity motion detection
- Supports repeat trigger mode
Technical Specifications:
- Input Voltage (VIN): 4 – 28V
- Operating Voltage: 3.2 – 3.4V
- Operating Current: 2.8 mA (typ.), 3 mA (max.)
- Transmission Power: 20 mW (typ.), 30 mW (max.)
- Output Level:
- Drive Capability: 100 mA
- Operating Temperature: -20°C to +80°C
- Storage Temperature: -40°C to +100°C
Adjustment Pins:
- C-TM: Adjusts re-trigger delay time (default ~2 seconds, increases with higher capacitance)
- R-GN: Controls detection range (e.g., ~7 m default, ~5 m with 1MΩ resistor)
- R-CDS: Enables light-dependent control (can disable detection in daylight using an LDR)
Pin Description:
- 3V3: 3.3V output
- GND: Ground
- OUT: Signal output (HIGH when motion is detected)
- VIN: 4–28V input
- CDS: Control input (below 0.7V forces output LOW)
Notes:
- Do not place metal objects directly in front of the sensing area
- Keep at least 1 cm clearance on both front and back sides for proper operation
