Led cube
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Please be positive and constructive with your questions and comments.
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Re: Led cube
the cube uses one pin for each of nine leds on a level, then three more pins to select a level.
4x4x4 would require 16 pins + 4 pins, which would be a perfect fit for a 20 pin microcontroller if it you didn't need vcc, ground and reset.
then there's charlieplexing, a technique of which i have an imperfect understanding. you could wire a 4x4x4 cube with nine i/o lines or a 5x5x5 cube with twelve i/o lines, but the wiring would be really challenging.
4x4x4 would require 16 pins + 4 pins, which would be a perfect fit for a 20 pin microcontroller if it you didn't need vcc, ground and reset.
then there's charlieplexing, a technique of which i have an imperfect understanding. you could wire a 4x4x4 cube with nine i/o lines or a 5x5x5 cube with twelve i/o lines, but the wiring would be really challenging.
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Re: Led cube
Thanks for the insight. I might look into getting either another microconrtoller or look into charlieplexing.
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Re: Led cube
Hi,
I'm working on the 3x3 cube and see the placement of 8 wires but not the 9th anode, cathode and resistor. I have figured out a cube with eight lights per level but I'm curious about the mysterious 9th. Can anyone enLighten me?
Thanks.
gw
I'm working on the 3x3 cube and see the placement of 8 wires but not the 9th anode, cathode and resistor. I have figured out a cube with eight lights per level but I'm curious about the mysterious 9th. Can anyone enLighten me?
Thanks.
gw
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- Joined: Sat Nov 10, 2007 12:59 am
Re: Led cube
you'll have to solder directly to the portd pads where the socket is soldered to the circuit board. you can take a look at the source code for the project to figure out which pins are used. there will be one for the ninth anode and one each for the common cathodes of each of the three levels of the cube.
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Re: Led cube
Hi,
I'd like to build a LED cube, but I didn't found a circuit board layout on the web.
I only found a picture of the circuit diagram, but I'd need the original file. (I think it's designed with eagle ?!)
If someone have the layout, I'd only need the original, because I'd manipulate it myself.
Please help me.
Thanks, Michael
PS: Sorry for bad english
I'd like to build a LED cube, but I didn't found a circuit board layout on the web.
I only found a picture of the circuit diagram, but I'd need the original file. (I think it's designed with eagle ?!)
If someone have the layout, I'd only need the original, because I'd manipulate it myself.
Please help me.
Thanks, Michael
PS: Sorry for bad english
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- Posts: 1645
- Joined: Sat Nov 10, 2007 12:59 am
Re: Led cube
the particular led cube under discussion here is based on lady ada's minipov3 board. the project was originally present as a weekend project on the make magazine blog. it is described on mitch altman's site, here.Pixelmonster wrote:I'd like to build a LED cube, but I didn't found a circuit board layout on the web.
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- Joined: Thu May 13, 2010 9:35 am
Re: Led cube
Thanks for your answer and sorry for my bad phrasing.
I know how to build the cube, but I need the circuit board layout of the MiniPov v3.
If I have this, I could add a resistor and switch the led sockets to simple pads for soldering, ...
I know how to build the cube, but I need the circuit board layout of the MiniPov v3.
If I have this, I could add a resistor and switch the led sockets to simple pads for soldering, ...
- adafruit_support_bill
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Re: Led cube
The Eagle files are on the MiniPOV3 web page: http://www.ladyada.net/make/minipov3/download.html
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Re: Led cube
I knew this page, but I didn't saw this link.
Thank you very very much!
Fast and good help, I like this forum!
Thanks!!!
Thank you very very much!
Fast and good help, I like this forum!
Thanks!!!
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- Joined: Thu May 13, 2010 9:35 am
Re: Led cube
Hi,
it's me again (sorry )
Now I built my LED Cube with a manipulated circuit board and it's working quiet good.
But it has a big problem. It's flickering and I don't know why.
Do you know why?
Thanks, Michael
it's me again (sorry )
Now I built my LED Cube with a manipulated circuit board and it's working quiet good.
But it has a big problem. It's flickering and I don't know why.
Do you know why?
Thanks, Michael
Please be positive and constructive with your questions and comments.