The document summarizes a project to create a jacket for cyclists that uses LED lights along the arms to signal turns. A group of 3 students followed steps to 1) choose the project, 2) design the jacket with LEDs along the arms, and 3) develop a prototype using an Arduino, flex sensors, and conductive thread. Each member participated in design, component selection, coding, and implementation. The programmable circuit uses flex sensors and LEDs along each arm to signal turns. Known issues include the flex sensors behaving digitally through threads and sensitivity to direct arm contact.