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1  Using Arduino / LEDs and Multiplexing / Re: Whats needed? 30x30 and 40x40 on: October 08, 2011, 03:42:17 pm
or also how about instead of connecting the LEDs in a series but run them parallel and have 30 rows of lights with each row having 30?...could i do it that way too?
2  Using Arduino / LEDs and Multiplexing / Re: Whats needed? 30x30 and 40x40 on: October 08, 2011, 03:10:20 pm
thanks much for the info...i did some research...and i figured i can us the peggy2 from evilmadscience and put the lights on a sphereical surface.  i have put a picture of what i want to do.
3  Using Arduino / LEDs and Multiplexing / Whats needed? 30x30 and 40x40 on: October 07, 2011, 06:53:02 pm
Hello i am relativley new to arduino so i want to know what is needed for a 30x30 matrix using straignt power from the wall socket.  If anyone can gimme a link or something on what parts i need.  Thanks smiley-grin

p.s. and also 30 x 40 smiley-grin
4  Using Arduino / LEDs and Multiplexing / Whats needed for synchronizing two 30 x 20s? on: April 07, 2011, 03:18:46 pm
Hello...i have already got some info on how to make a 32 x 32.  So, what would i need to do to make two 30 x 20s and synchronize them together.  Kinda like synchronizing two Peggy 2 boards to work together.  Your input is greatly appreciated smiley-grin
5  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 04, 2011, 05:23:22 pm
finally drilled all the holes on the dome...counted 544...so i might actually be ok.  I'll just do an offboard from the Peggy 2 to the dome...Now what i really want are some super wide angle LEDs to make seem bigger than they are smiley-grin
6  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 04, 2011, 12:03:38 pm
Alrighty...bookmarked this page and Thanks everyone for the info, seriously, i greatly greatly appreciate it.
The only difficult part is ee for myself is placing the LEDs on the dome in a form that it will work with the chips n' stuff

I will post up pics when i get the LEDs placed out on the dome, cause I would really appreciate your feedback smiley-grin
THANKS!!!
7  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 04, 2011, 12:54:09 am
ok i'll probably watch the item for now lol

ok...I have the dome and i drew out on it where all the LEDs will go but they are kinda scattered...i mean the markings are nicely put on the dome, equally spaced...but they are not in parallel smiley-sad

So how bout if i just controlled the LEDs in a series.  There will be 30 rows but with different amount of LEDs in each row...how would that work?  In my head i'm thinking it's going to be easier...Just the programming is gonna be hard on account i would have to synchronize each indiviadual LED on it's own smiley-grin lol
8  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 03, 2011, 03:52:01 pm
So i would need 32 transistors for each column or row? or both?

and i found these LEDs
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=320674396304&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en

these LEDs have a viewing angle of 160-180 degrees and a mcD of 16,000, FV= 3-3.2, Reverse Current of 10uA
they look like what i would exactly need

And i found this project as a reference...it's a 32 x 32 coffee table turned into a LED pong table smiley-grin
And this project looks like it has the circuit board and chips i need too
http://www.instructables.com/id/Super-Pong-Coffee-Table/step11/Tidy-Up/

And this guy is using transistors...i'm assuming it's the same concept your telling me to do smiley-grin
http://www.instructables.com/id/810-LED-Matrix-with-4017/

9  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 02, 2011, 10:20:44 pm
do you guys know a good website where i can buy a bunch of LEDs for a good price?
10  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 02, 2011, 08:49:44 pm
thats right...got my math wrong lol...thank you correcting me and for the info smiley-grin
11  Using Arduino / LEDs and Multiplexing / Re: 100 x 100 possible? on: April 02, 2011, 05:37:57 pm
so from the Peggy 2, i would just add more to it?
12  Using Arduino / LEDs and Multiplexing / 100 x 100 possible? on: April 02, 2011, 01:38:49 pm
Hey i been wanting to do a LED display but on a half dome surface...just one color white...i will use around 960 LEDs but in section...is this possible?  by the way it's a school project to, i'm wanting to go all out on this smiley-grin

example: http://www.indieshuffle.com/wp-content/files_mf/1293135498deadmau5_led_head.jpg
13  Using Arduino / LEDs and Multiplexing / Led/Peggy 2 typ display/ on: March 30, 2011, 04:48:18 pm
Hi, i'm new to this forum and a bit new to electronics..some what lol

I was wondering if anyoune has a diagram to make a Peggy 2 style circuit diagram for 32x32 or more like circular diagram.  I want to do an off-board project but on a hale dome sphere and i want to use around 900 to 1000 leds.  I don't want sound activiated i just want simple animations like the peggy 2 from evilmadscience.com using arduino

How would i go about starting this? and if anyone can draw a schematic for me smiley-grin

by the way...it's a college class project...due by the end of this year smiley-grin
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