Dobrica Pavlinušić's random unstructured stuff
RCWL-0516: Revision 2

RCWL-0516 is a doppler radar microwave motion sensor module which can act as an alternative to a PIR motion sensor.

https://github.com/jdesbonnet/RCWL-0516

https://community.home-assistant.io/t/custom-sensor-using-nodemcu-and-rcwl-0516-solved/313635/13