[oopic] Using IO Lines? R to R Board Comm

Question:
If I have only one compass (CMPS03) that connects to the I2C bus on an
R board, what is the simplest method to ensure a second R board, also
connected via I2C, gets the same reading in near realtime? Board 1
(with the compass) also has IR rangers that must transfer data.
Options include:
Only two basic units of information need to be transferred, 'Heading'
and 'ObstacleRange'. Use DDELink? Or IO lines? Hardwired to Serial Port?

Extra credit:
Extensive use of Virtual Circuits

Show all work.

(Just kidding.)

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