Hi,

It exists one chart !!!

The book is " Basic Stamp " from C.Kühnel and K. Zahnert ... Newnes publications. ( results are the same w/PbP ...)

The "Optimum" setting is Scale @ 53 ... that gives a 200 units scale ( NOT 255 !!! , you'll never have 255 steps !!! )

Now, there is a bad non linearity hard to avoid ...


Soooooo, RCTime is MUCH,MUCH,MUCH better to use ... and an ADC is THE Linear solution !!!

Alain

PS: I've forgotten POT exists for about ... 10 years !!!