3DoT compatible Infrared (IR) sensor shield.
QRE1113 Reflective Optical Sensors measure reflectivity to detect a change in color or material. The two inner sensors on the IR Sensor Shield are at the perfect distance to follow a ~0.5″ thick line. The two outer sensors can be used to detect intersections and to aid in turning your robot.
Available pre-soldered to paperbot specifications or as self-assemble kit.
Self-assemble kit requires a soldering iron to solder 4 through-hole IR sensors and an 8-pin header.