1. This module is a color sensor based on AMS's TCS3472XFN color light digitizer. The sensor provides digital output of red, green, blue (RGB) and clear light sensing values.2. The integrated infrared blocking filter can minimize the infrared spectral components of the incident light, and can accurately measure the color.3. It has high sensitivity, wide dynamic range and infrared positive filter.4. Minimize the effects of IR and UV spectral components to produce accurate color measurements. And with ambient light intensity detection and shieldable interrupt.5. Communication via I2C interface. This design is based on the same design principle and provides design designs (square version / double-hole version) to provide users with more options for installation size and environment. The double-hole version is equipped with 2 LED lights to fill the object.Product parameters:Working voltage: 3.3V/5VControl chip: TCS3472XFNCommunication interface: I2CColour:blackMaterial:absSize: 20.5 x 20.5mm Package Contents:1 * Color recognition sensor/ 1 * RGB sensorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.