[Rick] finally completed his color sensor after finding a digital luminosity sensor on Adafruit, ending up with a pretty accurate piece of hardware to judge the color of something.

Don’t have a color sensor? You can roll your own with an RGB LED, a photocell, and not much else. If you’re wondering how they work, we’ve seen the color sensor demystified.

You can actually build your own color-sensing lamp with this $8 Adafruit RGB color sensor, and follow along with plenty of Arduino tutorials online. But look how cool and sleek its product video is!

Arduino enthusiasts may be interested in a new single pixel scanning camera which is powered by an Arduino Uno combined with a TCS34725 sensor available from online stores such as Adafruit.

Assembled Adafruit BMP280 Temperature & Humidity sensor Assembled TCS34725 RGB Color Sensor MCP3008 - 8 Channel 10-Bit ADC With SPI Interface 1x Photo Cell 2x Breadboard Trim Potentiometer ...