Review on Stemedu Pack of 5 HC-SR501 PIR Sensor Infrared IR Body Motion Modules for Arduino Raspberry Pi by Ashutosh Takumatla
Motion detectors are ok, best
So here's the thing, they work great; if they work at all. 3/5 of the sensors I got always either didn't detect any movement or registered everything as movement. I decided to help him when in doubt and try to eliminate every possible glitch and no bones. It wasn't until I tried my fourth sensor that everything magically worked and to be honest I don't even know if the fifth works because I'm too scared of messing up my current setup.
- Few competitors
- unreliable
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