Review on π Stemedu 5PCS RCWL-0516 Motion Detection Sensor: Advanced Microwave Radar Module for Arduino ESP8266 Nodemcu Wemos - Ideal for Animal Detection, Long Range 5-7m, Outperforms HC-SR501 by Ronnie Saylor
Security and surveillance quality issues
The first device I tried was consistently HIGH, it never dropped to LOW. The next unit worked pretty well and even spotted me through a hollow door. I left it for a week and then soldered wires to Gnd, Out, Vin. Now the device only detects motion from the "blank" side and only up to a foot away. Pretty unimpressive. Maybe the other 3 will work.
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