Sometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may already have an idea in mind since you are ...

Moderately priced Passive Infrared PIR Sensor modules are now widely available. By using these readymade and pre-configured PIR sensors, even an average electronics hobbyist can construct his/her own ...

What if your light switch could be smarter? We’ve had clever switches for years, capable of changing the brightness, ...

The Instinct Wi-Fi light switch features built-in sensors for motion and ambient light, as well as a microphone and speaker for your Alexa commands. Originally hailing from Troy, Ohio, Ry Crist is a ...