I wouldn't really call this new.....
These are the serial LEDs that are used in games like Alien. You can get them for 25 cents a piece or less.
A lot of homebrew pinball machines use them as well.
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Quoted from zacaj:I think TNA uses them, or something similar
TNA uses direct connection LEDs, not serial LEDs like this, if I'm not mistaken.
Quoted from mcbPalisade:Looking at the FAST family of pinball controllers the "Nano" looks like it is set up to drive 255 Neopixel LEDs:
That's correct, a lot of us use them in our homebrew machines. Their 5V data line and no clock signal gives WS2812B some disadvantages though. I don't know if I personally would use them for a production machine without some really tight engineering work on implementation. The newer APA102 spec/LEDs adds a clock signal to the chain so you can control the timings at least.
Having said that, WS28128B are cheap and easy to implement. Because the entire state of the chain gets sent every refresh cycle, it becomes less mission critical when data gets corrupted or missed, because the next data stream will set the state back to where it should be most likely.
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