It's easy to build, but this ESP32 and e-Paper project will bring endless satisfaction to the weather-focused.

ESPHome, an open-source project, lets you program ESP32 and ESP8266 microcontrollers, along with sensors and other hardware, ...

Following Aqara and Meross, SwitchBot has announced a new presence sensor with light, PIR, and 60 GHz mmWave radar sensors to detect when people are in a room. It runs on two AAA batteries that are ...

Matt Elliott is a senior editor at CNET with a focus on laptops and streaming services. Matt has more than 20 years of experience testing and reviewing laptops. He has worked for CNET in New York and ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

Lauren Graves is an educator-turned-editor specializing in personal finance content. She seeks to make complicated topics easier to understand and less intimidating to the average reader with accurate ...

Installing a smart water sensor can save you a lot of money and hassle. The top leak detectors we've tested immediately alert you to issues and even shut off your home's water supply. I’ve been ...