(Passive InfraRed sensor) A device used to detect motion by receiving infrared radiation. When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR ...

The MS600 uses a combination of the super-precise radar tech, PIR, and light sensors to detect small movements, such as breathing, as well as general motion and light levels. The sizeable sensor ...

TK has combined a PIR with an Arduino to create a smart safety light for the house or workshop. Follow along as this gets built out into a more extensive project.

Moreover, radar sensors can be combined with optical cameras, using radar as a long-distance trigger to activate camera functionality. The high-precision mmWave radar offers a host of advantages over ...

PIR sensors (PIRs) use heat radiation from bodies to identify the presence of people and animals. This can be used for unlocking doors or starting a video recording.

PIR sensors made by Panasonic (PaPIRs) use Lithium Tantalate (LiTa03), and are lead (Pb) free under the terms of the European RoHS (Restriction of Hazardous Substances) Directive.

How it works is simple: you can track devices using Bluetooth on the ESP32, and through a combination of presence and signal strength, you can define a sensor that changes to an "on" state when ...