It is a device robot able to follow one it lines quarter note that defines the trajectory to continue. Their construction takes approximately 2 months and materials and technology of relative simplicity were used. The designed is divided in three parts; the first is the stage of the sensors made up of two photo-transistors that they are able to differentiate the reflection of light between a white surface and the black surface of the an electric tape, the second stage it is the call logical stage and it is the one that reads the information of the sensors and it discriminates against the trajectory to continue, and lastly the following stage is that of power or of control of motors composed by two bridge ?H? that control the corresponding advance motors and direction correction.

HERNAN SILVA C.

Email: hsilva@microcare.cl