Simple LED Kit
The LED demo is a simple example to illustrate how electrical circuits work, a few different common electrical components, and how Printed Circuit Boards (PCBs) are designed and manufactured. This board can also be used to teach the basics of SMT soldering.
The end result is a CR2032‐powered LED that is on when the button is pressed. A tooling hole is drilled to mount the board or use it as a keychain / emergency flashlight.