RCWL-0516

RCWL-0516 Microwave Radar Sensor

RCWL-0516 is a 3.181GHz wave propagation interference radar microwave motion sensor module which can act as an alternative to a PIR motion sensor. Moving your hand for instance will cause frequency shifting of around 1MHz as this radar is good at detecting water in your body (also good a detecting metal)

Board header

5 sec ON time

Angel: 360deg

Supply Current 2.7mA

Distance approx 4-5 meters (reducible by adding a resistor to R-GN)

Programmable sensitivity can be adjusted using a Resistor

Using a resistor from 470K to around 2 Meg ohm to R-GN reduces the gain (Range Sensitivity)

Capacitor can be added to C-TM to Regulate the repeat trigger time.

A LDR can also be added to R-CDS to turn off the detecting function at night.

Note: if Vin is not used the 3.3V can be connected to act as a 3.3 Volt input.

RCWL-0516 Microwave Proximity Sensor - With & Without Arduino