How to make a digital potentiometer with 16f628 ?

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Fragrance

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IS ANY IDEA

HI,

Is any idea about how i can make a digital potentiometer with 16f628 with out using a potentiometer chip

regards
Fragrance
 

Hi fragrance,

What do you want to use your potentiometer for? - If the idea is to create
a DC voltage you can build an R-2R DAC. If it's probably for setting the
gain of an OP, you can use resistors and a CMOS-switch like the 4066.

Bye
 

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