[ladyada] has a freshly-published and amazingly thorough tutorial on passive infrared (PIR) motion sensors. Most often seen in security floodlights and automatic doors, in creative hands these sensors ...
The main principle of the circuit is to provide security using PIR sensor. This can be used in the museums to protect the valuable things and also in defense applications to detect the humans in war ...
Following Aqara and Meross, SwitchBot has announced a new presence sensor with light, PIR, and 60 GHz mmWave radar sensors to ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback