Linear to S Curve conversion

[luminas]

Thanks Darrel,

The code is working now

After experimenting, I am still confused how to adjust the x axis width, independently to left and to right from the center

The real problem is that the stick (mechanical ) stroke is not identical, say to left 30 degree, to right 26 degree
but electrically they are centered [ at 50k on 100k stick ]
this will make our curve response not equal


If we can adjust the most left / right position, then we can have nice curve, which has true equal left / right width


Jon

[Darrel Taylor]

That's what I was trying to do with the Trim.

It allows you to adjust the "Center" position of the Control.

I'm just using pots on a breadboard here, maybe it's not doing it right on the real thing.

Can you give me any numbers?
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[Acetronics2]

Hi, Darrel

Reading your kind post ... I just remember placing a resistor from the hot side of the pot to the cursor, and another, the same value, from the cursor to the cold side of the pot give a nice exponential shape to the "pot " response.

so, using a twin pot instead of my two stupid resistors might give a trimmable response ( care to the minimum value !!! )

Was a pleasure to help you

Alain

[luminas]

Well, it seems that the stroke does not matter anymore, the difference is not significant.

Case closed and I'd like to thank you all for helping