This is a tutorial on
how to create your own 3x3x3 LED cube.
This is a tutorial on
how to create your own 3x3x3 LED cube.
What do you need:
- 1x Arduino Uno.
- 27x LED's (i use 3 colors, 9 of each color)
- 9x 220 ohm Resistors
- 3x 22k Ohm Resistors
- 3x NPN Transistor (1 use 2N2222)
- 1x Strip board
- Cables (used to connect the arduino to the led lights.)
Step 2 Prepare the LED's
What do you need:
- 1x Arduino Uno.
- 27x LED's (i use 3 colors, 9 of each color)
- 9x 220 ohm Resistors
- 3x 22k Ohm Resistors
- 3x NPN Transistor (1 use 2N2222)
- 1x Strip board
- Cables (used to connect the arduino to the led lights.)
Step 2 Prepare the LED's


Bend the LED pin as shown in the picture. remember measurements.
Step 3: Make the LED 3x3 Matrixes

1.Draw the diagram on a paper same as size given in picture(If your LED pins are short you can adjust the size given or may solder the wire)
2.Past that diagram on piece of wood or plastic and drill the hole (red dot) I use plastic bottle.
3.Putt the LED’s in to the holes shown in the picture and solder the negative pins.
4.It is your first 3x3 matrix 2 more to go repeat the above step
Step 4: Add the 3X3 Matrix Together
Put 1 3X3 matrix into the holes and put anothewr 3X3 matrix on top of it.
In the case below 3X3 matrix positive LED pins should meet the top 3X3 matrix positive pins.
A bellow picture gives you a clear idea

Final Matrixes
Step 5: Complete Your 3x3x3 Matrixes

Step 5: Complete Your 3x3x3 Matrixes
Add final 3x3 matrix on top of two 3x3 matrix .I extend the positive pins of final 3x3 matrix because they are shorter than other LED’s