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 ...

To choose the best photoelectric sensor for your application, you need to consider a number of criteria, including sensor configuration; environment; and the placement, nature, and speed of the target ...

Photoelectric sensors with background suppression are a more evolved version of the basic diffuse sensors used on public washroom sinks to control automatic faucets. Both in this rudimentary ...