I am working on rcwl 0516 microwave sensor, I have appiled 5v to vin and -ve to GND. The problem that I face is this sensor does not work properly. When I touch the sensor it works perfetly fine but from a distance it does not detect any movement.
Am I doing something wrong?

 

The RCWL-0516 micro wave sensor is a bit critical to handle in practice. The high frequency transmitter will be easily disturbed from any metallic part near to the module. Connect the sensor to needed cables only, no metallic parts near to sensor and the full range (5 to 7 m) is available. This works for mine sensor perfect!

 

I forgot: https://github.com/jdesbonnet/RCWL-0516/issues/57#issuecomment-1345431777