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------------------------------------------------------------------------
Extended NEC infrared protocol
------------------------------------------------------------------------

See https://www.sbprojects.net/knowledge/ir/nec.php for a description of the
NEC protocol including the extended protocol.

These are random button presses, including a few repeat signals. The remote
in question is unmarked and used for remote controlling ceiling lights.

Logic analyzer setup
--------------------

  Probe  NEC
  -----------
  0      IR