[Noisebridge-discuss] Sanity check on LED matrix design.

[John Adams]

On Sun, May 20, 2012 at 1:19 PM, Daniel Pitts <Daniel at coloraura.com> wrote:

>
>  I *almost* see what you're talking about here.  The I found the
> datasheet for74HC164 (not the HS?),  It appears to be an 8bit shift
> register. I'm not sure how that'll be useful for powering an 8x8 display,
> unless you meant one per row, or unless you mean for me to find a shift
> register with larger capacity.
>
> I do see however how a shift register in general will be a helpful tool to
> have in my toolbox.
>

One per row would work, just use a fast output frequency so people can't
see the data clocking by on the display.

You could also charlieplex the display.

http://en.wikipedia.org/wiki/Charlieplexing

-john
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