I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

After decades of intense research, surprises in the realm of semiconductors—materials used in microchips to control ...

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 ...

Most consumer remote controls operate using infrared light. This works well assuming the piece of equipment has a line of sight to the remote. But if you have, say a receiver in a cabinet or closet, ...

We all know that feeling: you've turned the lights off and are almost asleep when you hear that infamous buzz. A mosquito is hunting in your bedroom. The dance commences. You could turn on the lights, ...

LED epitaxial wafer and chip maker Epistar has developed SWIR (short-wavelength infrared; wavelength exceeding 1,100nm) LED chips for use in non-invasive bio-sensing applications, such as measuring ...

The new method, which uses quantum dots, performs as well as or better than current infrared light sources while being much ...