For this project, I decided to make a scene from my favorite book series, Harry Potter. I choose the scene that Harry first produced the patronus, which was in the shape of a stag. So I did this illustration of the scene, and use cotton to create a dreamy effect of the smoke suppose to come out along with his patronus and also as the cover for the LEDs and the copper tape.

After I finished the illustration, I was trying to figure out a way to lay out the circuit underneath the patronus. I decided to go with a parallel connection with the switch and battery in the middle. Here’s the diagram for the circuit I used in the project.

The circuit is completed by moving around the wand and the two LEDs will be lightened up once the wand is in its position. Right now, there’s some connecting issue with the left LED that I need to fix. Although it’s hard to find the right position to lighten up both LEDs, I think this actually make sense since Harry was struggling to produce the entire patronus in its complete form at first.

Here is a demo that shows how this works.