JELLY BEAN ROCK WALL THEMING

Note: I am not an electrical engineer! This is by no means a professional wiring diagram.

Electronics comprise a major part of our system. We plan on instructing players by changing the color of the lights in the room, and checking their positions on the rock wall with capacitive touch sensing.

This is our current high-level plan for electronic integration. There are five main elements: the jelly bean rock holds, 8-channel capacitive touch sensor, Arduino Uno, an RGB LED strip, and the power input. To decrease the total number of I/Os, we've bundled the jelly beans together by color. Each color bundle maps to a different channel in our touch sensor. Notice that there are multiple bundles per color - this is to avoid overloading the touch sensor's channels with too many signals. If one channel is sensing six different jelly beans, it'll be much easier to register false positives (especially because touch sensing is so sensitive). Having multiple color bundles reduces the number of jelly beans each channel has to monitor from six to three.

We can control the color of the LED strip with MOSFETs and PWM output. Essentially we can regulate the intensity of the red, green, and blue LEDs to create whatever color we need within the same code that checks if players are following instructions or not.