The Incremental Detection Timer is a fully enclosed, accurate, and intuitive detection timer. The timer serves the purpose of a simple egg timer and can be used to countdown from any minute amount the user desires. The Incremental Detection Timer utilizes four push buttons. The first two of these buttons set a predetermined time on the detection timer. These same two buttons also double function as reset timer functionality. The last two buttons are used in the custom incremental timing system, with the third button setting the number of minutes, and the fourth button starting the timer. The timer also features a dial potentiometer to control the brightness level of the display and a power disconnect switch. Inside the enclosure, an ESP32 WROOM Development Board is used. This board processes system inputs, controls the logic of the timer, and handles output functionality. An HD44780U LCD display utilizing I2C communication protocol is used to display the time remaining on the countdown. Two voltage regulating PCBs are implemented to power the internal workings of the system. To simplify the grounding process, a ground plane composed of a copper sheet was implemented to ease the process of creating common ground connections. In addition to simple countdown functionality, an HC-SR501 PIR sensor is used to detect the removal of an object from in front of the system, and immediately terminate the countdown. Once the countdown has elapsed or been terminated from an outside source, an led indicator will light up, and an easy-to-hear 440 hertz chime will play, both of which are located on our system output PCB. Once the chime has finished, the system resets itself and can continue to run countdowns until the user flips the master power switch off. The Incremental Detection Timer tested our group knowledge of software principles and hardware design, providing a unique challenge that combined much of our skills learned over the last two years. Our biggest accomplishment was implementing the final system from our prototyped version without any issues. This success stems from our rigorous prototyping and testing process, allowing us to easily create our final system within a day. Despite this ease of creation, our prototyping saw many struggles, particularly relating to our software. We struggled with implementing reset functionality and our custom incremental time button. This struggle significantly slowed down the prototyping process, creating other issues with the HC-SR501 and PCB aspects of our system. If we could redo this assignment, greater emphasis would be put on completing the PCB design and prototyping earlier. By saving time, we could spend more time fixing the sensitivity issues of our PIR sensor and could implement full custom timer functionality complete with adjustable hours and seconds.