Dirk Hohndel f2a656246d Add support for setpoint, ppO2 and CNS
So far only OSTC and Shearwater Predator are supported. For the OSTC we
support CNS and setpoint changes in the samples (the current hardware
doesn't actually support ppO2 sensors and for the older hw that does I
don't have the correct encoding information).

For the Predator we support only the "average ppO2 during the sample".

The Predator also gives us a CNS value at the end of the dive - I don't
quite know yet how to deliver that back to the consumer. Possibly as CNS
value in the very last sample? That would at least be consistent.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-12-10 21:23:48 +01:00
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