Additional sensors and actuators such as encoder motors, XS motor, mini-switches, NTC resistors, phototransistors and LED‘s allow construction of mobile rover vehicle, surveillance stations, alarm centers, and more. Preprogrammed modules are also provided for beginners. This set is compatible with other fischeretchnik robotics construction sets. Including teaching and activity related material for support of construction and programming. Set includes one ROBOTICS TXT Controller, Software ROBO Pro, USB camera (1 MP), 2x encoder motor, XS motor, 2x LED, 2x switch, phototransistor, NTC resistor. REQUIRES: Accu Set (sold separately).