Microwave Radar Sensor Human Body Detector 3.3V RCW-L0516

The RCWL-0516 is a doppler radar microwave motion sensor module which can act as an alternative to a PIR motion sensor. Instead of sensing changes in infra red radio emitted by a moving person this sensor uses a microwave Doppler radar to detect moving objects. It has a sensitivity range of ~7 meters. When triggered its trigger output pin will switch from (LOW) 0V to high (3.3V) for ~ 2 to 3 seconds before returning to its idle LOW state.

1. 3V3 – Regulated output (reference only)
2. GND – Ground / 0V supply input
3. OUT – Trigger: HIGH (3.3V) motion detected / LOW (0V) idle
4. VIN – 5V-12V supply input
5. CDS – Sensor disable input (pull low to disable)

• Product code: HCSENS0040
• Supply Voltage: 5V dc
• Supply Current: >3mA (2.8mA typical)
• Operating frequency: ~3.2GHz
• Transmit power: 20mW (typical) / 30mW (max)
• Size: 36mm x 17mm

• GitHub Documentation
• Datasheet
• YouTube Video