Using an Uno's PWM output (driven by a photo-resistor used as input), how can I control an external voltage source (an LM2596S voltage regulator module set to 8 vDC right now) to deliver a variable output voltage between 8 and 7 volts? I'd like this control to be linear so the ratio between the Uno'…

How to control external voltage via PWM

SteveMann October 7, 2021, 8:24pm 7

No.
You might be able to replace the adjustable resistor with a digipot.

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