wiring the arduino to the breadboard

• Place two 10MΩ resistors on the breadboard.

• Connect one leg of each resistor to Arduino pin 4 (the send pin).

• Connect the other leg of the first resistor to Arduino pin 2 (receive pin for Button 1).

• Connect the other leg of the second resistor to Arduino pin 3 (receive pin for Button 2).

Then, connect another wire to both the wires going to pin 2 and 3. These two wires will be the ones that conect to the buttons. However, for now, leave them hanging. 

[Touch Pad 1]---[Pin 2]---||---+

                            |

                          [10MΩ]

                            |

                          [Pin 4]---Arduino

                            |

                          [10MΩ]

                            |

[Touch Pad 2]---[Pin 3]---||---+

The next step is to take the  female side of the barrel plug wire and solder the wire to each hanging wire that is connected to pin 2 and 3. Make sure that the solder from each of the sides are not touching. Now, instead of having the two wires just hang off the side, they converge into the barrel plug jack. 

Print the hub, and then place the arduino and the breadboard inside. The female side of the barrel jack and the computer connecter can stick out the hole in the side.  I admit, it might not be the most efficient hub, so you can also print a different hub and orient the pieces inside.

to upload the code to arduino, download the Arduino Leonardo IDE.  Inside this app, you will see a "sketch." Make sure everything that may have already been written in the sketch is clear before continuing. Go into the doc under the "code" section up above, and then copy and paste the code into the large open box. Make sure the "keyboard" and "capacitive sensor" items are downloaded in the library, which can be done by clicking the book icon on the left of the screen and searching them up.

Once the stl file linked above has been printed, it's time to utilize the foam core to create the large buttons. Each 3D-printed square is exactly 7 inches by 7.25 inches of open space inside. Simply take a ruler and measure out those dimensions on the foam and use an X-acto knife to cut it out. 

Take the copper tape and cover the full foam that has been placed inside each square. If you want to, you can make a fun design in the tape as long as the surface will easily be touched when hitting the button.

usde a paper clip and attatch it to the foam. Do so by pushing the clip into the foam so that part of it is stuck into the foam and the other is clipped to the tape on the top of the foam.

You are now finished with the constrution of the buttons. Take the alligator clip wires and clip them onto the paper clips in the foam.