The TCS3200 Color Recognition Sensor Module uses a high-quality light sensor allowing you to sense any color through a combination of Red, Green, and Blue. The module provides all of the pins of the TCS3200 on convenient 0.1″ headers – ideal for use with PCBs, breadboard or stripboard. Four white LEDs provide plenty of light for the color sensor and allow you to use the module in any ambient light. The module requires only a single supply voltage between 2.7V and 5.5V – making it compatible with nearly all common microcontrollers, including PICs, AVRs, ARM, Arduino and more! The pinout is clearly labeled on the board and is as follows Header one on the left side of the board S0: Output frequency scaling selection input (along with S1) S1: Output frequency scaling selection input (along with S0) OE: Output Enable – if held low, the output of the module is turned on GND: Ground – connect to 0V Header two on the right side of the board S3: Photodiode type (along with S2) S2: Photodiode type (along with S3) OUT: Output – A square wave appears here showing the intensity of the detected colour VCC: Power – connect to 2.7V-5.5V The Photodiode type pins allow you to pick which color light you are currently detecting: S2           S3           Photodiode type Low      Low           Only red light Low      High          Only blue light High     Low              No filter High                         green light By combining the reading of each of the three colors, you can identify any visible color!  Features : High-resolution conversion of light intensity to frequency. Chip pins all has drawn for standard 100. Put the needle (2.54 mm). Mil-convenient for bitmap board. Programmable color and full-scale output frequency. Communicate directly with a microcontroller. Low-profile surface mount package. Package Includes : 1 x TCS3200 Color Recognition Sensor Module SKU: PG-0012229 Category: Light/Color Sensor