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Wire new plaque buttons #22

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adamberenzweig opened this issue Jul 18, 2011 · 0 comments
Open

Wire new plaque buttons #22

adamberenzweig opened this issue Jul 18, 2011 · 0 comments
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@adamberenzweig
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High-level tracking bug.
We're switching from 3 buttons to 12, and switching the button LEDs from 12V to 2V.

  • Order new buttons: 12 x 2V LED, blue, flat.
  • For the button LEDs, use one of the old plaque connectors containing 12 leads that used to power the 12 2v (or 1.5v?) red LEDs. They already have small resistors (220 ohms) appropriate for this.
  • For the button signal returns, use the other old plaque connector. But we'll need two modifications: 1) Replace the resistors on that side with something slightly bigger (10k-ish). 2) (software) make those mega pins input instead of output.
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