Putting it in a box
Now we have prototyped the controller, changed the Smilie-O-Mat sketch to support it, and tested it, but it is still a little bit brittle and hard to use. The current task is to create a customized controller that is easier and faster to use than a mouse, which we currently do not have.
What we need to do is put the controller into a more stable housing and add some knobs to the variable resistors. We will use an aluminum box to house our controller, drill some holes for the resistors, and then switch and solder the connections to prevent them from losing contact. We will also add a sheet of paper to prevent our Arduino from touching the metal directly and causing a short circuit.
Like the robots in Project 1, Romeo and Juliet, the version of the controller shown in this task is how I solved the problem, and this is by no means the only valid solution. You want to use a pink lunch box or a little plastic dinosaur instead of the aluminum box? No problem! This is your controller...
