Review on π XINGYHENG 5Pcs HC-SR505 Micro Body Sensing Module: Efficient PIR Motion Detector for DIY Electronic Projects by Jordan Rini
I connected mine to ultrasound. Works great
Nice little pad. I use it to detect the presence of people. I've found that the IR sensor loses track of a standing person, so I paired it with an ultrasonic sensor. The resulting combination feels a person's presence well (for me) and turns my machine on and off reliably.
- Impressive
- boring packaging
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