Reflectance sensor for Zumo robot
Including €0.01 for ecotax
Each emitter-receiver infrared pair of the reflectance sensor for Zumo robot sends a signal representing the amount of received light. A white floor will reflect lots of light while a black floor (or no floor) will reflect very few.
The four central sensors of the reflectance sensor for Zumo robot are close to each other to follow a line more precisely while the two external sensors are pushed to the sides of the board to see a line or an arena edge as soon as possible.