The interdisciplinary nature of engineering design and the pervasiveness of electronics in most products has made it necessary for practitioners of "design thinking" to understand electronics and embedded systems, in order to expand their concept exploration space. This poses a significant challenge for mechanical engineers, whose knowledge of electronics is typically limited. A course in mechatronics is available to enhance this knowledge, however it is taught separate from product design and CAD/Toy Design, and students often do not get the opportunity to combine these elements. With an open source microcontroller platform (ArduinoTM) that allows for easy programming, we see an oppportunity to blend design thinking into a larger domain of engineering. In this paper, we propose a platform that would simplify the incorporation of electronics into a design. The proposed platform will utilize the ArduinoTM, along with a modular architecture for designing electronic systems, as well as modular program segments for controlling these systems which can be easily customized to meet student requirements. This will enable students in a toy design course to integrate electromechanical systems into their designs, while at the same time providing useful electronic knowledge which can be used in their future careers. The toy design projects utilize a Problem-Based Learning [1, 2] approach that will allow students to familiarize themselves with the synthesis and programming of these systems.