Uploaded January 2020 | Updated September 2026, 1 week ago
Quick demo showing how to use LTSpice to model the Arduino's PWM output being used to produce a "pseudo-analog" output signal. An RC Filter provides the "averaging" circuit to convert from a square wave to an analog output with a bit of "ripple". It's not fantastic, but it's sufficient for many applications where the ripple isn't too annoying.
Quick demo showing how to use LTSpice to model the Arduino's PWM output being used to produce a "pseudo-analog" output signal. An RC Filter provides the "averaging" circuit to convert from a square wave to an analog output with a bit of "ripple". It's not fantastic, but it's sufficient for many applications where the ripple isn't too annoying.
