Hy there!
i'm playing with one 8x8 common anode led matrix display, but i not found the way to connect it to arduino. The tutorials i found cover the issue but with common cathode matrix, any body can drop me a line to start work with this?
thanks!!
Is the matrix bicolor? if not then all that you have to do is turn the schematics 90 degrees and wire it up that way
ex:
a-a-a-a-a-a-a-a---- C
b-b-b-b-b-b-b-b-----C
c-c-c-c-c-c-c-c------C
d-d-d-d-d-d-d-d----C
e-e-e-e-e-e-e-e----C
f-f-f-f-f-f-f-f--------C
g-g-g-g-g-g-g-g---C
h-h-h-h-h-h-h-h---C
| | | | | | | |
A A A A A A A A
a-a-a-a-a-a-a-a---- A
b-b-b-b-b-b-b-b-----A
c-c-c-c-c-c-c-c------A
d-d-d-d-d-d-d-d----A
e-e-e-e-e-e-e-e----A
f-f-f-f-f-f-f-f--------A
g-g-g-g-g-g-g-g---A
h-h-h-h-h-h-h-h---A
| | | | | | | |
C C C C C C C C
Thanks for your answer biojae!
but i still lost 
do i must use a multiplexer like the 74HC595 or 74HC138?
thanks for your time!
Hi,
I know bragging stinks, but maybe this will help you find out what you need 
I've made a 8x8 rgb matrix controller for common anode leds using 595 shift registers. There's images, vids, code, schematic on my blog. See >www< link below. There's also a thread on this in this forum, but it's somewhat off-topic sometimes :
It basically uses the way shift registers are introduced in the playground in combination with an interrupt routine to refresh the matrix and some functions so assign colors to the leds.
Hope this helps ;D
Thanks!