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WS2813 question — Parallax Forums

WS2813 question

T ChapT Chap Posts: 4,223
in General Discussion
They are stating that a defective pixel does not stop the rest on the same chain. The way they are routing DIN from one chip to BIN makes me wonder how the chain works if one dies. If for example you have 3 parts on a chain. You tell part one to be RED, part two to be GREEN and part three to be BLUE, if part two dies, does part three still remain BLUE or does it shift up? I would have thought that in addressing, you would shift up one if there is a dead chip.

Comments

  • jmgjmg Posts: 15,173
    T Chap wrote: »
    They are stating that a defective pixel ...

    I think the key semantics here are 'pixel'.
    The parts comprise a single separate CMOS shift register, driving 3 LED die.
    The Pixels are the LEDs, and yes, those can fail and not affect the Shift register.
    If the CMOS register fails, then you are SOL.
  • T ChapT Chap Posts: 4,223
    Anyone familiar know if these 2813 are compatible with the existing WS2812B drivers we already have?
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