Instructables

Step 2: Component list

IMG_6426.JPG
Here is what you need to make a LED cube:
  • 512x  LEDs (plus some extra for making mistakes!)
  • 64x resistors. (see separate step for ohm value)
  • 1x or 2x large prototype PCBs. The type with copper "eyes", see image.
  • 1x ATmega32 microcontroller (you can also use the pin-compatible ATmega16)
  • 3x status LEDs. You choose color and size.
  • 3x resistors for the status LEDs.
  • 8x 74HC574 ICs
  • 16x PN2222 transistors
  • 16x 1k resistors
  • 1x 74HC138 IC
  • 1x Maxim MAX232 IC
  • 1x 14.7456 MHz crustal
  • 2x 22pF ceramic capacitors
  • 16x 0.1uF ceramic capacitors
  • 3x 1000uF electrolytic capacitor
  • 3x 10uF electrolytic capacitor
  • 1x 100uF electrolytic capacitors
  • 8x 20 pin IC sockets
  • 1x 40 pin IC socket
  • 2x 16 pin IC socket
  • 1x 2-pin screw terminal
  • 1x 2wire cable with plugs
  • 9x 8-pin terminal pins
  • 1x 4-pin terminal pins, right angle
  • 2x 16-pin ribbon cable connector
  • 1x 10-pin ribbon cable connector
  • Ribbon cable
  • 2x pushbuttons
  • 2x ribbon cable plugs
  • 9x 8-pin female header plugs
  • Serial cable and 4pin female pin header
  • Piece of wood for template and base
  • 8x optional pull-up resistors for layers
  • 5v power supply (see separate step for power supply)
Total estimated build cost: 67 USD. See attached price list.

 
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kochel171 year ago
This is a good guide.. however the parts list needs revamping. For those of us who have little to no experience in electronics, we don't know what to order unless the name on the spreadsheet matches the name of the part we have to order. For about half of the parts, when I would search the name on Futurlec I would get 0 results. Very frustrating.

the step2 components list still says "terminal pins" which are actually VERY different things from male headers, which is what I assume you meant since those are on the step15 list.

Tell the author of this instructable, not me...LOL...my instructable has actual links to the parts.

Thanks so much!

even i the Hitman admits

this is just awesome

Would this be possible to make on a soder-less breadboard? I'm asking because I am going to start much smaller. (5x5x5) And would hope to add on in the future. Any info would be much appreciated-- thanks!

Lufkum1 year ago
This project is awesome!

Can't wait to my part to arrive!

But what you mean by "2wire cable with plugs"

Thanks you :)
Hello I LOVE THIS

Can we buy them ready made?
el:)
Will this work with an Arduino Uno?
ryanprocter2 years ago
would this work with an arduino uno. that has an atmega328 in it
Yes, there would be some minor changes when using the Arduino; see step 70 of this Instructable for more info.
dweith2 years ago
Another great buy on Red LEDs is at Evil Mad Science, one reel of 1000 for $27.00. It does take some time to peel them off the tape, also the A & K leads are the same length but the lens is marked with the flat for the K. The peel of is not too bad since the tape is not dry as I have experienced with other discounted parts from the reel.

http://evilmadscience.com/component/content/article/259
TechNotes3 years ago
I made an updated supply spreadsheet with parts only from Digikey and LED's from ebay. I hope you can make use of it.

https://spreadsheets.google.com/spreadsheet/ccc?key=0Ai0ERwUks7OIdGFHT2xjQnpjcEhGNlpwMWg1eGQycHc&hl=en_US
Hi TechNotes, your spreadsheet is really helpful!!!
I am just starting with eletronics and I need help to find the other parts (those without part number in your spreadsheet)... do you have now the part numbers from Digi-Key or any other virtual shop? Thank you very much for the help!
homer TechNotes2 years ago
Thanks a lot for the list. Great job. Can you kindly let me know this:
- Why it's listed 1 ATMega but you have 2 in your list
- Why 500 Resistor instead of 64
- Is 100 Ohm for Resistors calculated number for those LEDs listed in part list?
TechNotes homer2 years ago
I have 2 ATMega's because I am using the other for another project. As for the 500 resistors, I like to buy in bulk, it's cheaper. I got 100 ohm resistors because that's what the LED resister calculator said to use.
thanks for the post. i'm trying to get the parts as well. I'm trying to find the ribbon connector on digikey but can't find it. mind guiding me? thanks! :)
Sorry mate, I couldn't find it. I would suggest then look at Electronic Goldmine, but I look there and couldn't find it either. I would look on Futurlec, as chr suggested, and tell me what you find. I have to get off now, so sorry I couldn't look anywhere else. I will definitely look for you tomorrow.
luislhg2 years ago
I'm about to buy some new things, and I'm probably gonna buy an Arduino.
Would I be able to do this tutorial using Arduino Uno Rev3?
Thanks in advance,
Luís.
arm1712 years ago
Just like aj1234 i am having problems with the names of these parts. Any help would be great.
Thanks

1x 2wire cable with plugs
9x 8-pin terminal pins
1x 4-pin terminal pins, right angle
9x 8-pin female header plugs
lnr06262 years ago
Hey, I'm just curious if there is a reason to not use another 74HC138 to control the which layer is turned on.
Thanks,
Lloyd
aj12342 years ago
Hi,
I am starting on this project and i have bought all the parts from digikey using the spreadsheet you provided in one of the comments. I also bhought the LED's from ebay. By comparing your spreadsheet and your list in the second step i found that i am missing these parts

64x resistors. (see separate step for ohm value)
3x status LEDs. You choose color and size.
3x resistors for the status LEDs.
16x PN2222 transistors
1x 2-pin screw terminal
1x 2wire cable with plugs
9x 8-pin terminal pins
1x 4-pin terminal pins, right angle
2x 16-pin ribbon cable connector
1x 10-pin ribbon cable connector
Ribbon cable Jameco
x pushbuttons
2x ribbon cable plugs
9x 8-pin female header plugs
Serial cable and 4pin female pin header
Piece of wood for template and base
8x optional pull-up resistors for layers

I managed to find the ribbon cable at Jameco but having trouble finding the other parts. is there anyway you guide me in finding the rest. I really want to build this LED cube. Thanks in advance for any replies, hope to be hearing from you soon.
jdorne2 years ago
Can you please tell me what "1x 2wire cable with plugs" is?

and also "9x 8-pin terminal pins"? (are these header terminals?)

and why are there 2x ribbon cable plugs but 3 sockets?
D3v45t4t0r2 years ago
is there a way to get a logo or an image with the led
poinu2 years ago
I have a doubt about the LED resistors.

I just be missing something, if you can't exceed the 50/8 mA rating from the 74HC574 (6,25mA), how can you use 100Ohm resistors?

I = 6,25mA = 0,00625A
V = 5 - 3 = 2Vdc

R = V / R = 2 / 0,00625 = 320Ohm

If I used 100Ohm resistors, I would exceed the maximum current and break the 74HC574, wouldn't I?

I'd really appreciate anything that could help me, thank you very much :)
LINOLARIOS3 years ago
WHERE CAN I FIND MOST OF THE PARTS I NEED ??? I WAN TO START THE PROJECT, ITS OK IF I USE THE ARDUINO UNO ???
http://www.allelectronics.com/
I usually use Solarbotics. Just for note for other people too who need to know. They have a nice deal for 500+ of 20 cents a peice, so its 107.52$ for 512. You can also get almost everything else too.
http://www.taydaelectronics.com has 5mm blue LED for 5 cents each
HI MY CAPS LOCK IS STUCK TOO! HAVE YOU FOUND A WAY TO FIX IT YET ??????
YES ITS WORKING OK NOW.........I GOT A VIDEO ON YOU TUBE http://www.youtube.com/watch?v=fttTCOH6QOA
cody863 years ago
just wanted to say awesome instructible.. trying to gather parts but not understanding some of the variences in the hardware
"Also, looking at the schematics and browsing through data sheets I noticed the following: for the MAX232 converter, the charge pump cap. value is set to 0.1uF witch is OK for the MAX232A. However for the MAX232CPE, 1uF should be used. Take note when ordering either!

on a slightly technical note, you can safely use larger charge pump caps, but understand that the bigger the cap. the longer the charge time - which could adversely affect your transfer speeds/ baud rate."

if i run with the maxim232cpe do i change the value of the 16x 0.1uf caps to 1.0uf caps i am trying to understand cause i only have access to maxim232cpe. and if so will it change anything els with the circuit or code because of charge time

dabamrak3 years ago
Can someone help me with the capacitors. What voltage should they be? I am a little confused as mdhowle and Technotes put different voltage capacitors in their lists and comparing the prices from the given pricelist.xls I myself find other capacitors on Futurlec.

Thanks!
Am I correct that anything above 5V will be sufficient?
Ken R3 years ago
I believe "10x smallest available" means that the 10x is the least amount you can buy @ futurlec. They will not sell smaller quantities.

Also, looking at the schematics and browsing through data sheets I noticed the following: for the MAX232 converter, the charge pump cap. value is set to 0.1uF witch is OK for the MAX232A. However for the MAX232CPE, 1uF should be used. Take note when ordering either!

on a slightly technical note, you can safely use larger charge pump caps, but understand that the bigger the cap. the longer the charge time - which could adversely affect your transfer speeds/ baud rate.

...or you could just get the MAX233, which has all caps. built in

Please correct me if I'm wrong ;)
poinu Ken R3 years ago
is this right?

should I get the MAX232, the MAX232A or the MAX232CPE?

Thank you for your help :)
Ken R poinu3 years ago
Get the MAX232
With the MAX232 there is no need for external capacitors, because they are built into the chip - problem avoided ;)
cnewell13 years ago
how many ohms r the resistors and where can i get these parts cheap
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