TCS3200 Color Sensor Module

TCS3200 chip is designed to detect the colour of light incident on it. It has an array of photodiode (a matrix of 8x8, so a total 64 sensors). These photodiodes are covered with three type of filters. Sixteen sensor have RED filter over them thus can measure only the component of red in the incident light. Like wise other sixteen have GREEN filter and sixteen have BLUE filter. As you should know that any visible colour can be broken into three primary colours. So these three type of filtered sensors helps measure the weightage of each of primary colours in incident light. The rest 16 sensors have clear filter. CS3200 Color Sensor is a complete color detector, including a TAOS TCS3200 RGB sensor chip and 4 white LEDs. The TCS3200 can detect and measure a nearly limitless range of visible colors. Applications include test strip reading, sorting by color, ambient light sensing and calibration, and color matching, to name just a few. The TCS3200 has an array of photodetectors, each with either a red, green, or blue filter, or no filter (clear). The filters of each color are distributed evenly throughout the array to eliminate location bias among the colors. Internal to the device is an oscillator which produces a square-wave output whose frequency is proportional to the intensity of the chosen color. TCS3200 converts the intensity of incident radiation into frequency. The output waveform is a 50% duty cycle square wave. You can use the timer of a MCU to measure period of pulse and thus get the frequency. Specifications: ● Single-Supply Operation (2.7V to 5.5V) ● High-Resolution Conversion of Light Intensity to Frequency ● Programmable Color and Full-Scale Output Frequency ● Power Down Feature ● Communicates Directly to Microcontroller ● S0~S1: Output frequency scaling selection inputs ● S2~S3: Photodiode type selection inputs ● OUT Pin: Output frequency ● OE Pin: Output frequency enable pin (active low),