Described security light circuit design is centered around an inexpensive passive infrared (PIR) motion detector module, type HC-SR501. The PIR motion detector module is used here with an added ...

In my quick estimation, the Grove-mini PIR motion sensor module (v1.0) is a compact and cost effective passive infrared motion sensor module which is appropriate for certain applications with ...

All that’s left to do is put this IoT motion sensor to work by mounting it in the area to be monitored. Once the PIR sensor sees something moving, the ESP8266 will trigger IFTTT; what happens ...

A wall adapter powers everything. I wired the PIR motion sensor to GPIO 17 using three female-to-female jumper wires, and for now, I’ve got everything secured using adhesive putty squares.