The problem in the Ceci plot’s aquaponic system was identified through direct visits and detailed analysis. Using scientific and experimental methods, guidelines were established for an automatic device tailored to the plot’s needs. Applying “design thinking” in stages—empathizing, planning, ideation, and design—allowed us to address these needs effectively. Prototypes, both sketches and real, guided the project direction. The final device, featuring an intuitive user interface and an ATmega microcontroller, communicates via Bluetooth to activate a servomotor, dosing fish food as scheduled by the user.