Athletes are always looking for ways to improve their performance. In sports like tennis and hockey for example, a way to analyze a swing is extremely beneficial to understand how well technique is being executed.

Some technologies exist that take video of athletes for swing analysis however they are static and require a way to setup a camera in an adequate position.

Your task is to design a device that can be attached to a piece of equipment along with a system that will help athletes and coaches optimize performance. It must be small and lightweight as well as be waterproof. It should be adaptable to be used in different sports.