Spin Semiconductor

Hi everyone, I'm trying to control the potentiometer inputs of the FV-1 through an arduino, I already managed to do that and it worked, but the arduino pwm works at 490Hz, can I have problems with pwm noise with this frequency?

Of course, square waves are wide specter, so, use low pass filter (at least RC chain of 10K resistor and 100n cap) maximum closer to arduino
And don't forget divider +5V of arduino into 3.3V of FV-1

I know there is a possibility of changing the frequency of the Arduino, but it seems like it's a complicated job, I'm going to do some tests with an LPF, thanks for the help.

atmel mcu have hardware pwm, but afair it's unused in arduino.
If you write own software on C , then you can use hardware pwm.

For now you can provide additional LPF on FV-1 side like : ldax Pot2 : rdfx pot2f , 0.002 : wrax pot2f , 1

You'll need to change the timers on the Arduino so as to not introduce noise.