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Grbl CNC
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This is a set of captures of a CNC running the Arduino-based g-code-parser
and CNC milling controller "Grbl".

Details:
https://github.com/gnea/grbl


Logic analyzer setup
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The logic analyzer used was an FX2 based device (at 2MHz):

  Probe       Target
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  0           DIR
  1           STEP
  2           TX
  3           RX