A TCS3200 color sensor is a much better choice, and you can buy a nice assemble module for about $2 from our friends in Shenzhen. And before you say the point here is DIY, DIY doesn’t mean 20 ...

This minimalist beauty uses an Arduino Nano and RGB sensor to assess the color. At the top, a small servo rotates an arm inside the hopper that both shakes the Skittles and sets them up single ...

South African researchers have developed a new cleaning system for solar panels that uses a color-sensing light-to-frequency converter to detect dirt. It can reportedly remove around 95% of the ...