The main principle of the circuit is to provide security using PIR sensor. This can be used in the museums to protect the valuable things and also in defense applications to detect the humans in war ...

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Installing a home security and alarm system no longer needs to be complicated or expensive. Thanks to today’s smart home tech, some of the best security systems are wireless, easy to install and can ...

Wireless sensor networks are nothing new to Hackaday, but [Felix]’s wireless PIR sensor node is something else entirely. Rarely do we see something so well put together that’s also so well designed ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. Arlo is mostly known for its popular security cameras, but ...