8x8x8 LED cube

I'm still looking for a better camera to get a decent quality video but here is my finished 8x8x8 LED cube, for build information check out my site.
http://www.hownottoengineer.com and see my LED cube project.

Category:

Science & Technology

Tags:

• 8x8x8 LED cube
• 512 LED
• multiplexing

[simonlullin]

i do not connect the drivers when i test it, there is only the cube, one resistor, and my 5v power supply... thank you so much for helping me!

[7705nick]

@simonlullin Are the transistors and drivers wired up at all? If they are the transistors will need to be driven high to be fully off, you can go this by connecting power and gnd to the driver/transistor board. If they are not wired up there must be a short somewhere in your soldering allowing current to flow through to other LED's.

[simonlullin]

Hy! awesome work! could you please help me? I did build the complete cube. When i test the cube (without anything (command system)) just with the + and the - on the base of the cube with a resistor, normally one LED should turn on... but in my case, 60% of the LED work correctly, and the other ones turns on together... I explain, if I turn on the LED number 0.0.0 , two other ones will turn on, in the cube at the same time, with 50% intensity (aprox!) , how is this possible? thank you in advance

[7705nick]

@simonlullin

Hi, Do you have the Led driver chips connected to ground the same ground? If they are left floating you can get current leaking,

[paulwoody]

I would like to build something similar but have always been put off because I wouldn't know where to start in respect of coding the patterns.

I understand basic programming but where would I start for such patterns that start at 45 second in - a sort of ripple effect.

I am confident I could figure out single characters running through the cube - shifting from one plane to the next which I would also guess each plane is an array,

Any tips on what sort of maths I should be looking into?

[7705nick]

@paulwoody youtube wont let me post the link for some reason, its at How Not To Engineer dot com under my led cube project.

[7705nick]

@paulwoody I have written up some pretty detailed instructions on my site, including the maths and code behind the sine functions. Hope it can help you out.

Cheers

Nick

[7705nick]

@zomgstuffnet you are right none of it is analog, but the sine functions are time dependent. Time, zero (units) is when I start the animation, and the time increments in units [number of animation steps]..

[zomgstuffnet]

@Dracopol

Yeah that's definitely not created by using analog "time-dependent equations." That is easily achieved with a microcontroller that can be programmed to control various I/O ports.

[MrInceptionFanatic]

It looks like V.I.K.I. from I Robot.