> xx.yy  = 0XXYY/100 -> you store 0XXYY 2
> xxx.yy = XXXYY/100 -> you store XXXYY 2
> xx     = 0XX00/100 -> you store 0XX00 0
> x.y    = 00XY0/100 -> you store 00XY0 1

> I hope that this makes sense. It's 3AM here

It does, and it's 3pm here

That's exactly the sort of thing I'll be doing. Worry about the
DP after the ASCII -> integer conversion. Will be a lot simpler
than how I'd started it, coping with the DP during conversion

I've also belatedly realised that each sensor can be dealt with
using its own range, rather than trying to devise a system that
covers everything from 99999 to 0.001. No individual sensor
actually needs that bit width / precision. In fact 1% would be
close enough most of the time, given the analogue nature of
the sensors, A2D resolution etc

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