When the metronome dropped to the floor this time, it broke into three pieces. The front, the back, and the battery. With a little bit of coaxing and a pretty heavy rubber band you were able to get it working again. As you examined the inside though you noticed the circuit board inside. Once again remembering that nearly everything that turns on has some kind of circuit board on the inside, you began thinking about the prototype printed circuit boards that you had in the basement. Maybe it is time to get back to work on the projects that you started last summer.
With the prototype printed circuit boards you were hoping to attach a light to the metronome that your daughter used on a daily basis for her piano practice.