[sdiy] nice Digi Pot

Vladimir Pantelic vladoman at gmail.com
Tue Jun 28 06:34:58 CEST 2016


On 28.06.2016 00:50, sleepy_dog at gmx.de wrote:
> 
> For regularly updating several SPI digipots in a circular fashion, is
> not a shift register predestined for the job?
> Insert one 1, clock it through 8 times and use the 8 parallel out pins
> of the register for chip select on 8 pots.
> Sure, more routing space wasted...

yes, that came to mind.

> I wonder why you would want to have *64* digi pots in "one circuit"
> controlled by one MCU, though.

is there a limit of how many digipots one can have in a circuit? :)





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