[sdiy] linear CV to log / antilog / inverse?
julian at 22host24.com
Fri Sep 21 23:00:02 CEST 2007
> How about an AVR or PIC microcontroller? You would sample with the ADC,
> use a lookup table to apply the function, and a PWM (and filter) to go
> back to the analog domain.
Have thought a lot about that approach, and, yes, it would work well, expect
for the financial cost.
Id be loath to use less than 12 bit dacs on the output, and, even with some
ammount of demultiplexing, the number of controlls that im dealing with (i
said 20, but itll probably be more like 23) will make, i think, the solution
somewhat pricy (?)
But, yes, if it wasnt for the cost issue, i think that would be a nice
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