This circuit shows how to use an ordinary LED as a light sensor. It makes use of the photovoltaic voltage developed across the LED when it is exposed to light. LEDs are cheaper than photodiodes and ...

LEDs are a wonderful technology. You put in a little bit of power, and you get out a wonderful amount of light. They’re efficient, cheap, and plentiful. We use them for so much! What you might not ...

When you need to quantify the color of an object, you’ve got quite a few options. You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an ...

This article aims to demonstrate the design of a smart brightness-controlled lamp with a motion sensor using a programmable mixed-signal matrix with four outputs, operating voltage up to 13.2 V, and 2 ...

Need a cheap and easy way to deter intruders? For homeowners, outdoor lighting is a game changer for providing a line of sight on potential trepassers without running up costly energy bills. If you're ...

We've seen Bravia Eco TV with sensor-based practice to adjust LED backlit in real time, the similar trick is now being used in a Panasonic produced home-user fluorescent lamp to exhibit its ...