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LED Cube finished — Parallax Forums

LED Cube finished

Roger LeeRoger Lee Posts: 339
edited 2010-04-05 05:43 in Propeller 1
After a long night Friday, I finished this up today.

4 x 4 x 4 LED CUBE


Video by popular demand
www.youtube.com/watch?v=Vo9qinunKVw

Better video? I need a better camera.
www.youtube.com/watch?v=6s_K-8_NMhQ

Post Edited (Roger Lee) : 4/5/2010 5:25:01 AM GMT
100_1117.JPG
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100_1120.JPG
2304 x 1728 - 698K

Comments

  • hover1hover1 Posts: 1,929
    edited 2010-04-03 19:11
    Looks pretty sturdy!

    Any videos?

    Jim
  • Oldbitcollector (Jeff)Oldbitcollector (Jeff) Posts: 8,091
    edited 2010-04-03 19:19
    Video please!! [noparse]:)[/noparse]

    Looks great!

    OBC

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  • Roger LeeRoger Lee Posts: 339
    edited 2010-04-03 20:11
    Video added to top of thread.
  • hover1hover1 Posts: 1,929
    edited 2010-04-03 20:23
    Very Nice Roger!!

    Standard 20ma LED's? Look's like 100 ohm on the driving part of the matrix?

    Jim
  • Roger LeeRoger Lee Posts: 339
    edited 2010-04-03 20:49
    Thank you for your support.
    What a feeling to have this working.

    Jim,

    yes, 100 ohm anode, none on cathode (4 levels).

    I don't really know If I'm near to blowing the chip or not!
    I ran lots of numbers and started with 330 ohm on a breadboard setup (DIP 40 propeller).

    Then changed to 220 ohm, everything still looked good, so I went to 100 ohm.

    I wanted them to be clearly visible in normal room lighting.
    100 got me to that point, so I pulled out the Protoboard last night.

    Did not try any lower values.

    The cables I had been using were 7 to 8 inches long. Made new ones today ( 4 of them, still using 1 long one).

    Roger
  • LeonLeon Posts: 7,620
    edited 2010-04-03 21:20
    A 5x5x5 LED cube I've seen recently uses two STP16CP05 drivers with very bright blue LEDs. Those drivers look very useful for this sort of thing, as they have constant current drive and can put lots of current through the LEDs without the need for individual resistors.

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    Post Edited (Leon) : 4/4/2010 1:47:10 PM GMT
  • beebsbeebs Posts: 20
    edited 2010-04-04 00:46
    Nice Job Roger!

    Looks Great!
  • StefanL38StefanL38 Posts: 2,292
    edited 2010-04-04 01:02
    OK Leon,

    to keep your XMOS-chip in conjuction with the propeller could you please develop a Prop-emulator on your xmos? wink.gif
  • AleAle Posts: 2,363
    edited 2010-04-04 06:23
    Stefan:

    The prop emulator on another uController already exists (I saw it on an AVR). Not yet ported to the xmos but it should be a recompile(tm) [noparse]:)[/noparse].

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  • LeonLeon Posts: 7,620
    edited 2010-04-04 13:41
    Where did you see that? I don't remember seeing it on the AVR Freaks forum, where most of that sort of stuff gets mentioned.

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  • CannibalRoboticsCannibalRobotics Posts: 535
    edited 2010-04-05 00:10
    Now that is just cool!

    Good job!



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  • Robert TRobert T Posts: 71
    edited 2010-04-05 02:17
    Very Cool
  • Roger LeeRoger Lee Posts: 339
    edited 2010-04-05 05:26
    thanks for the pats on the back.

    Got to show it off today after Easter Dinner. That was fun (at least for me)

    The first YouTube looked like ****.
    I've added another video to top post that may be better.

    Post Edited (Roger Lee) : 4/6/2010 3:13:16 AM GMT
  • caskazcaskaz Posts: 957
    edited 2010-04-05 05:43
    It's cool.

    I make 3x3x3 Cube, too.
    But it is a little hard to make program.
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