The principle of operation for motion detection is the doppler effect. The module acts simultaneously as a sender and receiver of radar waves. Part of the emitted waves are reflected in the ...
The custom PIR sensor module allows you to detect motion using passive infrared technology. By integrating it with Home Assistant, you can automate various tasks based on motion detection, such as ...
this DIY motion trigger for a DSLR is a quick and easy build, and probably loads more fun. The BOM on [Jeremy S Cook]’s build is extremely short – just a PIR sensor and an optoisolator ...
As an example, [Circuit Valley] has an IKEA Vallhorn motion sensor for a teardown, it’s as you might expect, a passive infrared sensor (PIR) sensor coupled with a Zigbee interface. Inside the ...