They only activate when needed, reducing energy waste and saving you money on your ... Sensor technology is evolving, and ...

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 ...

Motion sensors allow cameras to activate only when they detect…well, motion. This also allows them to contact you when ...

But [hclxing] noticed that the small white controller unit — the only other component ... would probably expect to see a PIR sensor, but this light is motion sensing with microwaves.

It comes equipped with a light sensor so that it only turns on when it is dark outside, and also a motion sensor. This allows the light fitting to increase its brightness from 30% to 100% whenever ...