Abstract: Ultraviolet (UV) radiation has been utilized as a germicidal or disinfectant for many years, particularly in the medical industry. With its potential to eliminate bacteria among fomites or any inanimate object that, when contaminated with or exposed to infectious agents, can transfer disease to a new host like parcels, the study on developing and designing a Microcontroller-based Automated Disinfection Device (MADD) using Arduino that can help eliminate bacteria found on parcels received by online shoppers was conducted during the first semester of the Academic Year 2020-2021 at Quezon City University (QCU). An evolutionary prototyping technique was adopted in developing and testing the MADD. The results show that MADD is durable, efficient, functional, and useful when it comes to disinfecting bacteria found on the surfaces of selected objects.