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Straight to the "Build" page: http://454.bio/docs/build/ http://454.bio/docs/build/

• dekhn 3y ago
  I was surprised by their choice of current-limiting resistors for the LEDs (instead of constant current driver) but I guess their goal was to keep the hardware As Simple As Possible
  • userbinator 3y ago
    Even commercial designs will cost-optimise. There's no need for extra complexity if it costs more and has lower reliability, unless they're going for planned obsolescence.
    • dekhn 3y ago
      The issue is, if you use current limiting resistors, the color rendering index and the absolute brightness are highly variable. That seems like it would matter a bunch.