This miniature, optical liquid level sensor switch has a micro structure with a 5mm diameter LED (see below). This sensor is good for liquid level detection at extremely small installations, and it ...

The sensor is very simple. Each LED is basically its own circuit controlled by a transistor and a few resistors. A 5V signal is fed from 7805 linear regulator into the tank.

If you want to fully enjoy the benefits offered by sensor lights, then you have to consider a few basic things before investing in LED sensor technology.

ABLIC’s single-chip, battery-level sensor/display driver saves power and simplifies the design of cordless tools and other ...

LEPOTEC 30-LED Motion Sensor Cabinet Light Amazon Brightening up your bedroom is as easy as sticking this ultra-bright light on your wall.

Commenters told him that the best fluid level sensor was a hacked blood pressure monitor. He didn’t know that, and we didn’t either, until we watched his video, below.