From: Dave Tweed <pic@dtweed.com>
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Date: Thu, 30 Apr 2020 15:38:16 -0700
Subject: Re: [EE] LED Matrix CC/CA
Thread-Topic: [EE] LED Matrix CC/CA
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Neil wrote:
> On 4/30/2020 4:20 PM, Josh Koffman wrote:
> > I'm looking at using a small 8x8 LED matrix in a project. It's been
> > awhile since I've dealt with them. If I recall correctly, in an 8x8
> > LED matrix what makes it common cathode or common anode is really just
> > how it's wired, correct? Since I'm making my own board, I could get
> > either and have it work as long as I adjusted the wiring for the
> > correct pinout?
>=20
> Yes, if all the anodes are wired together to the COM pin then it's=20
> common-anode.
> And vice versa.

Of course, an 8x8 matrix has common-anode along one dimension, and common-
cathode along the other dimension. So you get to choose one or the other,
depending on how you physically orient the device.

-- Dave
--=20
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