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Topic: Just wanted to share my 32 x 8 LED Matrix (Read 2 times) previous topic - next topic

Aaron_dyer

so...4 max7219's,  4    8x8 martrices,   4    100 uF caps,  4      0.1 uF caps and 4    27 K ohm resistors later...

http://www.youtube.com/watch?v=h1tyXEDhfDM


Aaron_dyer

Oh yes and my arduino Nano.....

code is attached too...

find the max7219 playground schematic and have a good pinout for the matrix before you start connecting them...know the rows and columns...

Riva

Is it meant to have that pixel column effect on each 8x8 matrix as it scrolls?
Other than that it looks good.

fungus


Is it meant to have that pixel column effect on each 8x8 matrix as it scrolls?


It looks like the columns are off by one. A little software tweak should fix that, no problem...


Other than that it looks good.


Yep. Nicely laid out and plenty of capacitors!

PS: You could maybe put the resistors all facing the same way though... :)
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

Aaron_dyer

Ya I noticed the column effect....to me, its good to go..i have worked on this thing forever....One of these days, I want to make the 64 x 8 matrix...easy enough..just cascade more max7219s....just gotta get a large enough PCB

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