SeeedStudio Grove Infrared Reflective Sensor v1.2

The Grove Infrared Reflective Sensor v1.2 detects proximity and color of objects. The reflective photosensor RPR-220 used in this module consists of an infrared light emitting diode and a high-sensitivity phototransistor. Light-colored objects directly in front of the sensor will reflect more infrared light as well as generate more current in the phototransistor than an object with dark-colored surfaces. Consists of an infrared light emitting diode (wavelength 940 nm) and a high-sensitivity phototransist...