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LED Cube 8x8x8

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Step 30: Build the controller: layout

We took out the biggest type of PCB we had available (9x15cm) and started experimenting with different board layouts. It soon became clear that cramming all the components onto one board wasn't a good solution. Instead we decided to separate the latch array and power supply part of the circuit and place it on a separate board. A ribbon cable transfers data lines between the two boards.

Choosing two separate boards was a good decision. The latch array took up almost all the space of the circuit board. There wouldn't have been much space for the micro controller and other parts.

You may not have the exact same circuit boards as we do, or may want to arrange your components in a different way. Try to place all the components on your circuit board to see which layout best fits your circuit board.
 
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shuhad91120 days ago

Please send me SCH and PCB file as well. Please

mail id is shuhad911@gmail.com

Abo-El-azm1 month ago

Hi could you also send me the SCH and PCB design to my email // hema.hema7@yahoo.com

Thanks:D

ArticW0lf2 months ago

I have tried opening these files and all i get is a bunch of random characters and symbols, if some one could email this to me i'd appreciate it. justin131518@yahoo.com

Dane11178 months ago
Ah well, I'll join the mass and ask for the files. I can't download them either, I get some odd numbers with .tmp after it. Could someone send me the files? I would really appreciate it. danielrugge(at)hotmail(dot)com
karansluv63910 months ago
Hi, I'm having problem in downloading the .sch file. Will you please send me the .sch file to my mail address. My email address is karansluv639@gmail.com.
Thanks a lot....
aliw210 months ago
For all the people who have problems opening the pcb .sch files in altium designer, open it in Eagle. That works.
salexandridis10 months ago
The first pin of IC3 is not connected to the bus. It should be corrected.
ptelegin11 months ago
Отправьте файлы .sch пожалуйста naf666any@gmail.com
chrisbDTM11 months ago
just another request for schematic files. i would really appreciate any help, thanks

chrisbuhlmann1@yahoo.com
wli511 months ago
Hello,
Could you please send me the .sch file ?
Thank you very much.
li.weichen.li@gmail.com
Cheers.

Weichen
lolz_971 year ago
Sorry to add to the list of people wanting schematics, but could you please send the schematic files to sunnyshenao@msn.com? minor hitch while trying to download it. Also, I need to say great job, I love this project.
CarlK581 year ago
I was able to download the multiplexer_board.sch but none of the others. Could you please email the files? This is one awesome project, it is perfect for teaching digital concepts. Thanks for sharing your work and for your time. My email is: carkuh8804@students.ecpi.edu
wong12751 year ago
Hello everyone. Just in case you were wondering / having trouble, the .sch files (that are downloaded with a .tmp suffix) can be opened in Eagle Cad (do a Google search). When you first download the files, make sure to change their .tmp endings to .sch!
kuprik1 year ago
I've been thinking how you can use a 16 pin connector, and as little use of wires. This is a preliminary layout of my idea. Not all do, but it seems to me to capture beautiful
driver_bb.png
can you send me the .sch files please. It only comes up as a .tmp file when i try to download them. hottpunkrockdude@aim.com Thanx in advance
Jwoozy1 year ago
How do you know where the 1k ohm resistors go, compared to the 100ohm resistors on this schematic?
jasongobus1 year ago
Hi could you also send me the SCH file too.. :)
it wont download for me either
Cheers

Jason
jason_gobus@hotmail.com
skristof1 year ago
Hello can you send the files multiplexer_board.sch and avr_board.sch to krike_s@live.be because i can't download them.
By the way nice cube.
r.mulder2 years ago
My PCB's have just arrived. Since I have some PCB's spare, drop me a note if you are interested. Photo's are attached, some compontents are still missing on the photo.
It are two printed circuits, 10 x 8cm, stackable, real neat.
pcb-empty-250x188.jpgpcb-loaded-250x188.jpg
The boards keep refining whilst they remain functional the same. After the green and blue I now have a bunch of orange/red ones. The latest one have the orientation of transistors in both TO18/72 and TO92 housing.
PCB_blue.jpgPCB_red.jpg
Hi I wold like to have PCB how to get it ..
Hi, either send me a DM via this website, or write me an email to roel.mulder at gmail.com and I'll send you the info.
So, any news on the PCB boards?
yes im interested please let me know i can get my hands on them
martin31c@yahoo.com
hey i'm really interested in the PCB's how much are you selling them for and is it possible for me to buy em from you with all the components already soldered to them ?
An earlier reply seems to have disappeared. Please drop me an email to roel.mulder at gmail.com for the boards. I'm not going to solder you the LED matrix though.
Just wondering, but where did you order your boards from?
Well, I took the trouble to develop them myself, based on the design here. A PCB is kinda neat in comparison to an experimentation board.
heyy I need led cube codes, who is that ?
Hi i am very intrested in doing this most awsome project.
However i also can not download or open the files please could you send me them
martindeakin25@hotmail.com
I need the schematics printed so I can read them... I cant view these??? Can someone tell me how to view/print them???
Hi there. What are you trying to view them in? Getting them is as simple as (a) download the two files. (b) rename them to have .sch extensions and meaningful filenames. (c) download EAGLE (freeware) and open them up. I hope this helps you out.
tarPancake2 years ago
The avr picture schematic does not show vcc and ground on the max232 chip. I am assuming these pins are 16, and 15, respectivly. Is that correct?
yes pretty much, the same applies for the two missing pins on all the latches. just check the datasheet for all your parts before you use them to make sure you know what pin is vcc or gnd. its good practise to do check anyway so you dont make a silly error with pin positions
martin31c2 years ago
I have tried but still not able to open the multiplexer and the avr . Even after changing to sch file after download , can some one help
Hi Martin Did You open the files? Do you have EAGLE installed?
Please, let INSTRUCtABLES know if and when you solve any problem.
Bardaky2 years ago
im not quite sure, but the resistors next to the 8 ic's are the ones for the led's (in my case 140 ohms, because i have 5 V and led's with 2.2V and 20 mA) and the 1k resistors are for the transistor array?
shredape2 years ago
This bold line that is drawn on the shift register schematic, does it represent one bus that is connected to half of each register's pins? In this case it wouldn't matter which pins are connected, thus having all D pins connected to each other
-or-
is it a sort of 'abbreviation' that has each pin from the ribbon header correspond to the representative pin on the register? In this case pin 14 would correspond to 1D and pin 6 to OC.

Thanks
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