The purpose of this project is to design and implement a Pomodoro Timer for Junior Design II (ECE 342) Spring 2021 called “Customdoro”. The Pomodoro technique relies on the temporary removal of distractions as television, game devices or cellphones creating a space for users to engage on a cycle of working and rest periods. Nevertheless, not paying attention to these devices is sometimes problematic as notifications usually captivate our attention. The Customdoro was created to help the user control the time spent distracted by seamlessly removing the number one distraction on our daily lives, the cellphone. Using the cellphone as key, the Customdoro engages on an operation cycle of twenty-five minutes of work and five minutes of rest and gives user feedback using a four-digit seven segment display and a buzzer. The Customdoro will buzz when the cellphone is removed or when the operation cycle is completed allowing the user to engage in another cycle or power it down via a slider switch. The system features adjustable 3-level brightness control, power delivery via battery and a slick design so the user can carry it to the library (although this is heavily discouraged by the designer as the beeping sound can and will get the user in trouble if used on the common areas; please do not take it to the library). Notable accomplishments of this project include the correct and accurate results of the timekeeping system and the tolerance design encountered on the enclosure. A most needed improvement is found on the ability to customize the length of work and rest cycles as currently the user is constrained to either five or twenty-five as defined on its code.