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Arduino Nano with Helders LPF

Posted: Tue Jan 22, 2019 2:42 am
by Robots86
Hello

Im working on a project which runs on a arduino nano. im running audio out of one of the pins. So its got some noise which I imagine is similar to that out of the GPIO pins on the Rpi. Would helders PWM audio filter help with this? Looking at the board there are 2 PWM pins. I presume this is just audio in?
Can anyone confirm if this is the case?

Re: Arduino Nano with Helders LPF

Posted: Tue Jan 22, 2019 3:28 am
by Helder
Each one is a separate channel but if you only have one just use one of the 2.

Re: Arduino Nano with Helders LPF

Posted: Tue Jan 22, 2019 3:32 am
by Robots86
Helder wrote:
Tue Jan 22, 2019 3:28 am
Each one is a separate channel but if you only have one just use one of the 2.
Thanks Helder
Yeah I only need 1 channel. Im ordering the bare board from OSH Park. Im guessing I only need to populate half the board then?

Thanks again for the reply mate

Re: Arduino Nano with Helders LPF

Posted: Tue Jan 22, 2019 6:02 pm
by Helder
yes just half is needed.