While PIR sensors are inexpensive, radar technologies are decreasing in cost and becoming more compact and simple to design. Radar solutions can range from simple motion detection to complex imaging ...

When a person walks past the sensor, it detects a rapid change of infrared energy and sends a signal. PIR sensors are used for applications such as automatically turning on lights when someone ...

On the hardware side there are no surprises, it consists of a PIR sensor connected to a NodeMCU microcontroller. It checks for a signal from the sensor, and if it’s triggered, it sends a command ...

If you've got questions about how this works or if pests really could be triggering your home security system, we've got all the answers you need below. Find out what tricks can help you beat the bugs ...

Get close enough to this raven and you’ll set off the PIR sensor, which triggers lighting and sound effects, including some spooky glowing and blinking red eyes, general cawing, and of course ...