[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 ...

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This project is an example of a PIR motion sensor for the Philips Hue bridge. The sensor can be registered at the Hue bridge as an IP sensor to control lights connected to the hue bridge. The sensor ...

Los sensores PIR le permiten detectar movimiento, casi siempre se usan para detectar si un humano se ha movido dentro o fuera del alcance de los sensores. Son pequeños, económicos, de bajo consumo, ...

Passive Infrared Sensor (PIR) is very useful module, used to build many kinds of Security Alarm Systems and Motion Detectors. It is called passive because it receives infrared, not emits. Basically ...

Here is one simple circuit of a general-purpose white LED security light with Passive Infrared (PIR) Motion sensing mechanism. At the heart of the circuit is a PIR sensor module SB0061. SB0061 is a ...

Motion sensing is the detection of the change in position of an object relative to its surroundings or vice versa. There are many kinds of motion detector methods: infrared, optics, radio frequency, ...