In this paper a hardware extension for the minirobot Khepera is presented. We are researching into algorithms for neural data processing and their hardware implementation by increasingly using the minirobot Khepera. This robot is supposed to record its environment continuously and to map obstacles. This is the basis for the implementation of an efficient navigational system. As the algorithms in question are complex and since the microcontroller on the Khepera does not possess the necessary processing capacity, it is requisite to develop a discrete hardware module that extends the Khepera.