After seeing all the different instructables for Led cubes i was still left with a lot of unanswered questions. So after reading everything i could find this is what i got. I decided to make the instructable after building it...so ill try to recreate the process the best i can.

This cube is different from others for many reasons:
1. It connects directly to your Arduino.
2. It uses few components, so its relatively inexpensive.
3. Runs on code that's easy to write. or you can use the ones provided.
4. Everything can be bought at your local Radio Shack

Parts Needed:

  • 64 diffused LED Lights (it cost a lot less to order 1000 off ebay for around $20) (Also i used 3mm LEDs, but 5mm or 8mm would work to)
  • 16 220 resistors
  • 4 22k resistors
  • 4 NPN type Transistors
  • 1-2 Perfboard (The kind with the little copper circles) (you only need one if you are good at compacting your soldering unlike me....)
  • 1 Arduino (I went ahead and bought a MEGA so there's room to expand fro future projects, however UNO has just enough i/o ports)
  • Insulated 22 gauge Wire
  • some craft wire

In all the cost of this cube is relatively low at around $100 (according to where you get your parts)
the Arduino was the most expensive part at around $60 For MEGA and i think a UNO is around $30.
So if you already have a Arduino the cost is brought down to $40.

Knowledge Needed:

  • Basic electronics and soldering
  • Be capable of following directions

Read the ENTIRE instructable before building design options mentioned in last steps.

Original video:

New code 6-10-13:

8x8x8 Led Cube - See Step 8: UPDATE #3

Step 1: Prepare The LED's

The first thing you must do is make the cube. 

If you look at the pictures of mine the LED's are not all just soldered to each other.  This is because I actually made all the wiring and circuitry when i was waiting for my LED's to get here from China....(Note that it takes about two weeks for the lights to get to you).
Therefore when Finally got the LED's they were a lot smaller than i anticipated, and i did not want to redo my circuit board, so i just made frames out of craft wire to hook all the cathodes to.  After i started to do that i then realized that it would the be shorter than it is tall making it a rectangle rather than a cube.  So that's when i added the vertical columns of wire to solder the anodes too.
The cube is split into 4 layers of 16 LEDS.

All the LEDs aligned in a vertical column share a common anode (+).
All the LEDs on a horizontal layer share a common cathode (-).

Now if i want to light up the LED in the upper left corner in the back (0,0,3), I just supply GND (-) to the upper layer, and VCC (+) to the column in the left corner.

To begin the Construction of the cube use a drill with the proper size drill bit to make holes in a piece of wood.  draw a grid to the size of the cube you want. (this is determined by how long the leads are on your LED's. 

Your going to want to test you LED's before you solder them into place because it would be sad if you put your cube together and had one in the middle that didn't work.  I'm sure they would be pretty hard to replace. So just use a 3v battery between the two legs of the LED. (long leg is positive, short is negative)

About This Instructable


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Bio: “To invent, you need a good imagination and a pile of junk.” ― Thomas A. Edison
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