The RCWL-0516 is a small proximity sensor that uses Dopler Radar to sense the presence of an intruder. It is very versatile and can be used on its own or in conjunction with a microcontroller or microcomputer.
This device does not consume much current and operates in a range of 4 to 28 volts, making it an ideal component for a battery-powered design.
The microwave antennas are integrated onto the small printed circuit board, making it a completely self-contained unit.
The RCWL-0516 also support an optional light-dependent resistor (LDR) to allow the device to operate only in darkness. This can be very useful in light control applications.
The RCWL-0516 employs “Doppler Radar” to detect movement and thus trigger a proximity alert.
The device has an integrated 3.3 volt voltage regulator which can provide up to 100 mA of current for powering external logic circuitry.
Operating Voltage: 4V – 28V, 5V – 12V recommended
Operating Current: 2.8mA (typical); 3mA (max)
Maximum Detection Distance: ~7m
Transmitting Power: 20mW (typical); 30mW (max)
Output Control Low Level: 0V
Output Control High Level: 3.3V
Operating Temperature: -20~80 C
Storage Temperature: -40~100 C
V3: 3.3V power output, can be used as a reference voltage or as a low current (less than 100mA) 3.3V power supply.
OUT: Control output; when a moving object is detected, it will output high level 3.3V
VIN: 4-28V Input voltage
CDS: CDS photodetector output.
1x RCWL-0516 Microwave Radar Sensor Module Human Body Switch Induction Module Back side with Onboard Regulated 3.3V supply