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 ...

I needed a multichannel line tracker sensor module for an upcoming project. A quick search found several versions of infrared line tracker sensor modules that met or exceeded my demands, but I picked ...

They linger in our water, our blood and the environment—so-called "forever chemicals” that are notoriously difficult to detect. But researchers at the University of Chicago Pritzker School of ...