8 high-sensitivity infrared sensors provide quick recognition of contrast information between black and white. I2C and serial communication support a range of control schemes, with a standard IO interface and PH2.0 connector for easy wiring. An integrated MCU reads data from the infrared sensors and outputs digital and analog signals. A keypad calibration function eliminates the need to manually adjust a potentiometer, providing convenient operation. Key benefits - Fast, reliable contrast detection for black/white surfaces, improving accuracy in sensing and control. - Flexible integration with multiple control systems through I2C, serial, standard IO, and PH2.0 interfaces. - Onboard data processing reduces host load while delivering ready-to-use digital and analog outputs. - Easy, repeatable calibration via keypad, avoiding manual potentiometer adjustments. Typical applications - Line following and edge detection in autonomous robots and automated conveyors. - Industrial inspection and sorting tasks that rely on rapid contrast identification. - Document handling, scanners, or printers for surface/edge alignment and quality checks.