Description:
The RCWL-0516 Microwave Radar Motion Detector is a compact sensor module designed to detect motion using Doppler radar principles. Operating at a frequency of approximately 3.18 GHz, it emits microwave signals and measures the reflections caused by moving objects within its range. This enables the sensor to detect motion through non-metallic materials, making it suitable for applications where traditional Passive Infrared (PIR) sensors may be ineffective. The module offers a detection range of 5 to 7 meters and operates within a voltage range of 4 to 28V, providing flexibility for various electronic projects.
Equipped with a 3.3V regulated output capable of supplying up to 100mA, the RCWL-0516 can power external circuits, enhancing its utility in integrated systems. The sensor features an output pin that goes HIGH (3.3V) when motion is detected and LOW (0V); otherwise, it facilitates straightforward interfacing with microcontrollers like Arduino. Additionally, the module includes a CDS pin for connecting a light-dependent resistor (LDR), allowing users to disable motion detection during daylight conditions. This feature is particularly useful for energy-saving applications, such as automatic lighting systems that operate only in low-light environments.
Specifications:
- Operating Voltage: 4V to 28V
- Operating Current: 2.8mA (typical); 3mA (max)
- Operating Frequency: ~3.18 GHz
- Detection Distance: 5 to 7 meters
- Transmission Power: 20mW (typical); 30mW (max)
- Output Voltage: 3.2V to 3.4V
- Output Current Driving Capacity: 100mA
- Trigger Mode: Repeat trigger
- Output Control Levels: High (3.3V) when motion detected; Low (0V) when idle
- Operating Temperature: -20°C to 80°C
- Dimensions: 36mm x 17mm
Features:
- Microwave radar technology for motion detection
- Capable of detecting motion through non-metallic materials
- Wide operating voltage range for versatile applications
- 3.3V regulated output for powering external circuits
- CDS pin for optional light-dependent resistor connection
- Compact design suitable for various electronic projects
Contents:
- 1 x RCWL-0516 Microwave Radar Motion Detector Module
