This thesis encapsulates the collaborative efforts undertaken for the Team H2politO since March 2022, focusing on the design, build, and optimization of low consumption prototypes for annual participation in the Shell Eco-marathon, an esteemed international competition. Existing commercially available fuel cell control units, provided by fuel cell manufacturers, primarily cater to the control of individual fuel cell subsystems to ensure system operations, with limited flexibility in control management. Consequently, the necessity arose for the development of an Electronic Control Unit (ECU) capable of integrating fuel cell and supercapacitors stack to communicate via CANbus with other boards of the vehicle, adhering to diverse team specifications and competition regulations to enhance previous performance outcomes.