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hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
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Not an issue, but a question: Is it better to use short parallel chains? #615

Open bytemage opened 6 years ago

bytemage commented 6 years ago

If both is equal in construction, is it better to use three short chains or one long chain?

I assume parallel chains can be addressed simultaneous, so less overhead is necessary. But is this correct and does it have any significant impact?

Please excuse me, if asking questions this way is incorrect. Just tell me what to do instead ;)

hzeller commented 6 years ago

Yes, using three short chains is faster than using one long chain. The parallel chains don't cost more CPU time than a single chain. Since they are shorter it is faster to update them.

bytemage commented 6 years ago

Great, thank you for your quick answer. That's way better than I though :)

Thank you for your great work, btw. I'm using it with the ElectroDragon board and currently three 64x64 panels chained. But it's gonna be a cube, so it'll be five panels when finished. Works like a charm so far.