's robot kit
QTR-HD-07RCREFLECTANCE SENSOR ARRAY is a set of eight reflectance sensors mounted in two rows on a 0.1" pitch and separated by 0.5", which form an array capable of detecting the presence of objects. When objects are detected, the sensors emit a HIGH, while when no object is present they emit a LOW. The array is designed to work with 3.3V and 5V, and can include an optional LED strip to provide light for the sensors. This part is part of Pololu's robot kit, which provides all of the necessary tools for creating robots and other electronic projects. The kit also includes motors, wheels, and other necessary hardware for building a complete robot.