Rescaling of values in PBP.

[Melanie]

Oh craps, everyone's beaten me to it... my offering...

OutputByte=(InputByte-165)*318/100

This is calculated from...

245-165=80 (the original span)

254/80=3.175 (new span divided by old span)

3.175 is rounded up to 3.18 and then we multiply it by 100 so as to keep everything an integer (which is why we finally do a divide by 100 to bring us back to reality).

You may want to preceed the formula with...

If InputByte<165 then InputByte=165
If InputByte>245 then InputByte=245

OMG Darrel... How much have you had to drink to think of that one?

[Glenn]

I guess that this was more complicated than I first guessed

..Currently I'm building a better test-rig so I can do some serious testing, right now I guess I just put a LCD in it and display the values.

The 165 and 245 was just typical values, I guess that the low value can be around 135-170 and the high one maybe 235-254. Maybe the span can be even larger.

The idea is to have a calibrating sequence first when the pic is started, where I determine the max and min value for this time, and then use this until the next start, where its calibrated again.'

Darrels solution was very neat btw

[Darrel Taylor]

OMG Darrel... How much have you had to drink to think of that one?

Ha! Apparently not enough Eggnog yet. It worked on the first compile.
Of course, I did an Ugly spreadsheet for the math first.
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