Here is an ultra simple Arduino Night Alarm project wired around a handful of inexpensive and easily available components. One advantage of using Arduino as a security system is the flexibility!

This project uses PIR (passive infrared) sensor to detect the change in radiation, this can be use on lighting control, temperature control, and motion detection since all objects with temperature ...

But if you’ve got a project that could benefit from the pairing of a powerful WiFi-enabled microcontroller and a passive infrared (PIR) motion sensor, the Bee Motion created by [Paul Price] is ...

The passive infrared (PIR) sensor market is experiencing significant growth as demand for efficient motion detection and ...

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.

Electromechanical PIR-Sensor Interface IC Controls Any AC Load Oct. 8, 2008 The LS6506R is a pyroelectric infrared (PIR) sensor interface IC that is designed to drive a latching relay.