Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This ...

While I typically try to keep my tinkering focused on practical purposes, sometimes I just have to pull a good prank ...

Surveillance system is one from dozen features offered in smart home technology. In case to fulfil the term of smart inside surveillance system, the automation should be well implemented. In this ...

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Pyroelectric infrared sensors (PIR) are excellent devices to detect human/animal presence with a small form factor and rugged design, for cost-effective surveillance. They are widely used to trigger ...