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 bu… ...

Note at this point that actual system performance will depend on many factors, including sensor orientation, object size, shape, color, and reflectivity. Back to the design description, the D13 signal ...

The idea behind the color sensor is to light up red, green, and blue LEDs and see how much light is reflected back from the object with a luminosity sensor. [Rick] chose an Arduino to do all the ...