Combine the two key technologies of the moment, namely Arduino and Lego Mindstorms NXT.
Arduino is undoubtedly the most popular electronic solution for education and individuals. Based on an open source model for all the Arduino technology (hardware, software and documentation), Arduino allows beginners but also experienced people in electronics to start their project quickly.
Interfaces called "Shields" exist and can run the Lego Mindstorms NXT robot and its various sensors with the Arduino technology. Complete your expertise in robotics with some electronics and open new horizons!