Experiments with the RCWL-0516 – Doppler Radar Distance Sensor

RCWL-0516 Microwave Proximity Sensor

The RCWL-0156 is an inexpensive yet useful proximity sensor that can be used on its own or with a microcontroller like an Arduino Uno.

The device is unique in that it uses microwaves and Doppler Radar to detect moving objects

In this article I will show you how the device works on its own and how we can add an Arduino (or two) to create some useful projects