[John] sent us this nice little project. He shows us how to create a motion activated alarm that plays the Mario Brothers theme and flashes some lights. He’s using an ATTiny13a for the brains, and a ...

Kangaroo’s latest motion sensor adds entry detection to the mix, but its lack of geofencing capabilities or support for any type of security camera makes it tough to recommend. It’s one thing to snap ...

Want simple, DIY home security without a camera spying on your family? So does WSJ's David Pierce, who installed four such systems in his home--and then tried to rob himself to see which one worked ...

The sensor lineup includes smart plugs, air quality monitors, and motion detectors, and automatically connects to Sidewalk without a hub or Wi-Fi.

Your garden variety motion detector uses IR, but these days, there are fancier technologies for achieving similar goals. If so desired, you can source yourself a microwave-based presence sensor ...

Outdoor contact sensors work just like indoor contact sensors by using a magnet to detect when both parts of the sensor pair ...

The Hue Outdoor Sensor is the first outdoor HomeKit sensor, and adds motion, temperature, and light sensors to automate the outside of your Apple-centric smart home. Recently, we took a look at the ...

Aqara this week released the Presence Sensor FP2 – a brand new millimeter wave sensor that goes far beyond the capabilities of more conventional motion sensors to facilitate powerful automations, with ...

Originally hailing from Troy, Ohio, Ry Crist is a writer, a text-based adventure connoisseur, a lover of terrible movies and an enthusiastic yet mediocre cook. A CNET editor from 2013 to 2024, Ry's ...