Sensors of light and color
Color recognition is a powerful and advanced skill that is becoming more and more useful in various projects. The same can be said for the twilight sensors and brightness level detectors. Currently, there are professional devices that effectively test everything related to color and brightness.
Products
See also
Light and color sensors - FAQ
Color sensors most often send a beam of light towards the tested surface and then measure the parameters of the reflected electromagnetic radiation. By comparing them with saved patterns for various colors, they are able to determine the color of the surface.