Manual Gain Setting For Op Amp using Digital Potentiometer

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Playing around with the X9C digital potentiometer in the feedback loop of an op amp to control the gain with an Arduino Uno.

Making use of the Serial Plotter to show the op amp input and output signals!

More on controlling the X9C digital potentiometer with Arduino:

X9C Datasheet:

Op Amp:

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Nice video, I just bought a X9C103S to do this with an external oscillator and timer to quickly test parameters, prefect timing

tablatronix
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Possible for add rtc for schedule digital potentiometer

miftahq
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really nice video, but what advantages does digital control have on analog systems?

alanbezada
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do you have a circuit schematic for how you actually connected the digital pot to the arduino i understand the code and everything but the sketch wasnt clear, goood video by the way

Bhabha
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Digital potentiometer + 555 timer = PWM?

Tannzrz