Yes, the RC element used as a DAC in this setup can also be used as a low-pass filter. It's a bit tricky to get this to work with PWM, but quite easy with the on/off (charge/discharge) approach and using ADC feedback.
Yes, the RC element used as a DAC in this setup can also be used as a low-pass filter. It's a bit tricky to get this to work with PWM, but quite easy with the on/off (charge/discharge) approach and using ADC feedback.