[Fjord Carver] brings together an RGB LED and CdS Photoresistor to make a color sensor. Those Cadmium Sulfide lights sensors usually have a very wide swing of resistance when exposed to varying lev… ...

The controlling chip — an Arduino, in this case — can read the intensity of the selected color. The TCS230 uses a 4 x 4 array of photodiodes, along with a Bayer filter.

TL;DR: Through Nov. 9, you can snag the Nix Mini Color Sensor for only $59.97 instead of $99 and find the exact color of just about anything. That's 39% in savings.

Get the right color every time. Now through 11:59 pm PT on 5/31, you can get the Nix Mini 2 Color-Matching Sensor for half off $99 at just $49.97. Nix Mini 2 Color-Matching Sensor – $49.97 See Deal ...

Never guess (or second guess) a color again. Through April 21, you can score the Nix Mini 2 color-matching sensor on sale for only $59.97, no coupon needed. StackSocial prices subject to change.

Now through November 9, you can get Nix Mini 2 Color-Matching Sensor for 39% off $99 at just $59.97. Nix Mini 2 Color-Matching Sensor – $59.97 See Deal Prices subject to change.

Take any DIY, design, or home renovation project to the next level with the Nix Mini 2 Color-Matching Sensor, now just $69.99. Nix Mini 2 Color-Matching Sensor Only $69.99 through Macworld ...

For only $49.97, this Nix Mini 2 Color-Matching Sensor can be your ticket to a world of colors, but only until 11:59PM PST on July 21. StackSocial prices subject to change.

The Nix Mini Color Sensor V2 could be the solution you're looking for, and it's now further on sale just in time for your spring refresh.

Arduino enthusiasts or those looking to learn more about electronics and programming may be interested in and awesome new electronics kit that allows you to create a full colour LED flashlight ...