SPI vs DMX - How are we using it in different applications

Is it a good idea to control your Digital pixels with DMX? And what is SPI and why we are using it instead of an older protocol DMX512?
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[@ProjectileObjects]

But there are also addressable LED DMX512IC strips?

[@LEDStripStudio]

Yes, there are. But we are not fans of those as well. It's just too many cables for pixel LED installations. More details here: ledstripstudio.com/why-is-it-even-more-stupid-controlling-digital-led-pixels-using-dmx/

[@ProjectileObjects]

@@LEDStripStudio @LED Strip Studio I read that article and in no way does it cover 5 pin digital DMX512 LED strips. The DMX512ICs receive DMX data communications directly. You can wire a 3 pin DMX or RJ45 cable directly to the strip. Additionally, they run in parallel, not Serial (SPI) and any number of LEDs or ICs can die on the strip without stopping the flow of data. SPI has a single break point, and dual break point for 4 pin PCBs with backup data line. I'm not a fan of DMX, but for professional long term installations SPI has some risks. Once again, this is 5 pin PCB DMX512IC chips I am talking about. Not DMX to SPI

[@LEDStripStudio]

170 LEDs limitation is really a problem, once you want to use e.g. 10000 LEDs in installation. That's our point of view. Of course you can find some benefits using DMX... either way, we just don't think it's practical.

[@ProjectileObjects]

@@LEDStripStudio I understand that point but most 24V are 6LEDs per pixel/IC, and most control boxes still use Artnet to DMX. The $200 box I typically use has 8 universes, so that's 1360 ( or 8160 LEDs / 136 Meters). And still to the point. If you are running 10000 LEDs from a single Artnet to SPI box and you have a break point 100 pixels in, then you'll have 9900 non-functional LEDs until you fix the break point. I wouldn't take that change running anything architectural where a lift or crane would be required to do the repair.

[@LEDStripStudio]

That's exactly why we use SPI Lamps for: ledstripstudio.com/spi-signal-splitter/