Parts/ Materials:-

1. 64 Diffused LEDs \$2.00
2. 4 100 OHM Resistors \$1.00
4. Slide Switch \$1.00
5. Wire \$0.75
6. Craft Wire \$0.25
7. Perf Board \$2.00
8. Project Box \$6.00
9. 9V Power Supply \$1.00

Total Cost: \$14.50

• Arduino Uno
• Drill
• 1/16" Drill Bit
• 5/16" Drill Bit
• Knife
• Straight Edge
• Needle Nose Pliers
• Soldering Iron
• Solder
• Hot Glue Gun

Wiring The Circuit

First, snap the pin header in to 3 pieces that fit the Arduino Unos digital and analog plug-ins. Strip and start soldering wires to the 16 digital leads(columns) on the perf board. For the 4 analog leads(layers), solder 100 OHM resisters to the leads then solder wires to each resisters lead. Next strip and solder the opposite ends of the wires to the 3 pin headers. The wiring is setup to resemble a graph with a 3rd dimension. For the columns, there are two axes X and Y. In addition, the layers serve as the Z axis. If you look straight down from the top of the LED cube it looks like the 1st quadrant on a graph except that the origin is (1,1) on the cube. Likewise each LED can be named using the fundamental graphing technique. Lets try an example; look at the demonstrational picture and find A(1,4). "A" means that it is on the first layer and "(1,4)" is X=1,Y=4 on the graph.

Columns

[(x,y)-Pin]

• (1,1)-13
• (1,2)-12
• (1,3)-11
• (1,4)-10
• (2,1)-9
• (2,2)-8
• (2,3)-7
• (2,4)-6
• (3,1)-5
• (3-2)-4
• (3-3)-3
• (3,4)-2
• (4,1)-1
• (4,2)-0
• (4,3)-A5
• (4,4)-A4

Layers

[Layer-Pin]

• a-A0
• b-A1
• c-A2
• d-A3

Arduino code:-